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* The results of the temperature monitoring program are summarized in Table Presented are the average intake, discharge and delta temperatures for the Unit 1 condenser.
* The results of the temperature monitoring program are summarized in Table Presented are the average intake, discharge and delta temperatures for the Unit 1 condenser.
The coldest intake temperatures occurred in February [0.60C(33.10F)]
The coldest intake temperatures occurred in February [0.60C(33.10F)]
while the highest occurred in July [34.2oc (930F)]. The lowest and highest discharge temperatures occurred in February and August tively [l.1oc (34oF)] and [42.aoc (109oF) J. The monthly average delta T was fairly consistent out the year. No data are reported for April and May because of the plant outage. M P79 9 01 2.1-1
while the highest occurred in July [34.2oc (930F)]. The lowest and highest discharge temperatures occurred in February and August tively [l.1oc (34oF)] and [42.aoc (109oF) J. The monthly average delta T was fairly consistent out the year. No data are reported for April and May because of the plant outage. M P79 9 01 2.1-1 2.1.1 Condenser Delta Temperature (ETS Section 2.1.1) Heat rejected through the condensers varied in response to plant operating conditions and power level. Problems were frequently encountered with the lating water system, the most common being failures of the vertical traveling intake screens.
 
====2.1.1 Condenser====
 
Delta Temperature (ETS Section 2.1.1) Heat rejected through the condensers varied in response to plant operating conditions and power level. Problems were frequently encountered with the lating water system, the most common being failures of the vertical traveling intake screens.
tive locations of the RTD's and plugging of condenser tubing also contributed to indications exceeding the 16.5°F delta T limit with 6 pumps in service at times. Such corrective actions as power reductions or water box cleaning, were generally employed to reduce the delta T. In addition, the RTD's were relocated during the March outage thus rectifying the problem of erroneous readings when the station resumed operation in June. As mentioned before, the main problems were with the circulating water vertical traveling screens. Because of a serious detritus loading problem, and also to maximize survival of fish impinged upon the screens, the circulating water traveling screens were operated This caused excessive wear of the screens and related hardware and resulted in frequent breakdowns.
tive locations of the RTD's and plugging of condenser tubing also contributed to indications exceeding the 16.5°F delta T limit with 6 pumps in service at times. Such corrective actions as power reductions or water box cleaning, were generally employed to reduce the delta T. In addition, the RTD's were relocated during the March outage thus rectifying the problem of erroneous readings when the station resumed operation in June. As mentioned before, the main problems were with the circulating water vertical traveling screens. Because of a serious detritus loading problem, and also to maximize survival of fish impinged upon the screens, the circulating water traveling screens were operated This caused excessive wear of the screens and related hardware and resulted in frequent breakdowns.
Since a circulating pump cannot be operated without its traveling screen, Salem Unit 1 operated much of the time with fewer than 6 pumps in service. 2.1.2 Maximum Discharge Temperature (ETS Section 2.1.2) The circulating water intake and discharge temperatures reached their maximums in August. The intake ture maximum was 3o.ooc (96o80F) while the maximum charge temperature was 42.7°c (109.00F).
Since a circulating pump cannot be operated without its traveling screen, Salem Unit 1 operated much of the time with fewer than 6 pumps in service. 2.1.2 Maximum Discharge Temperature (ETS Section 2.1.2) The circulating water intake and discharge temperatures reached their maximums in August. The intake ture maximum was 3o.ooc (96o80F) while the maximum charge temperature was 42.7°c (109.00F).
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In accordance with ETS requirements the concentration in the sample taken outside and downstream of the mixing zone shall not exceed the ambient (intake) total residual level by more than 0.1 mg/liter.
In accordance with ETS requirements the concentration in the sample taken outside and downstream of the mixing zone shall not exceed the ambient (intake) total residual level by more than 0.1 mg/liter.
In 1978 the sampling program did not show detectable total residual chlorine increases at any location in the river during the chlorination periods. In all sampling locations the rivers total chlorine residual was le-ss than O. 03 mg/ liter. As discussed in Section 2.2.1.1, chlorination did not begin until July 5 and continued only until August 14. During this time the river samples showed no detectable total residual chlorine and no adverse biological impact was noted in the ecological studies (Section 3.1). The biocide samples for the first two weeks in August were inadvertently omitted but station recordi indicate that the concentration of free residual chlorine at the final heat exchanger did not exceed 1.0 mg/l
In 1978 the sampling program did not show detectable total residual chlorine increases at any location in the river during the chlorination periods. In all sampling locations the rivers total chlorine residual was le-ss than O. 03 mg/ liter. As discussed in Section 2.2.1.1, chlorination did not begin until July 5 and continued only until August 14. During this time the river samples showed no detectable total residual chlorine and no adverse biological impact was noted in the ecological studies (Section 3.1). The biocide samples for the first two weeks in August were inadvertently omitted but station recordi indicate that the concentration of free residual chlorine at the final heat exchanger did not exceed 1.0 mg/l
* M P79 9 27 2.2-5
* M P79 9 27 2.2-5 2.2.2 Suspended Solids 2.2.2.1 Suspended Solids Discharge From active Liquid Waste Basin (ETS Section 2.2.2) The original design of the non-radioactive liquid waste basin was based on processing approximately equal quantities of demineralizer regenerant wastes, steam generator blowdown and service water needed to quench the steam generator blowdown, permitting settling and pH neutralization before discharge to the river. In 1978, samples for suspended solids were taken from the basin discharge pipe on days when the basin was being discharged, and were analyzed using the tion/gravimetric method which is recognized by EPA. This was for year-end comparison with ETS Section 2.2.2 which states that "The average suspended solids tration in the effluent from the non-radioactive chemical liquid waste disposal system shall not exceed 25 mg/liter on an annual basis". The 1978 suspended solids concentration in the discharge from the radioactive waste basin was calculated to be 34.7 mg/liter.
 
====2.2.2 Suspended====
 
Solids 2.2.2.1 Suspended Solids Discharge From active Liquid Waste Basin (ETS Section 2.2.2) The original design of the non-radioactive liquid waste basin was based on processing approximately equal quantities of demineralizer regenerant wastes, steam generator blowdown and service water needed to quench the steam generator blowdown, permitting settling and pH neutralization before discharge to the river. In 1978, samples for suspended solids were taken from the basin discharge pipe on days when the basin was being discharged, and were analyzed using the tion/gravimetric method which is recognized by EPA. This was for year-end comparison with ETS Section 2.2.2 which states that "The average suspended solids tration in the effluent from the non-radioactive chemical liquid waste disposal system shall not exceed 25 mg/liter on an annual basis". The 1978 suspended solids concentration in the discharge from the radioactive waste basin was calculated to be 34.7 mg/liter.
This exceeds the ETS A licensee event report (LER 79-13/04L) reporting this was filed with the NRC. The prime contributor to the high total suspended solids (TSS) concentration was the blowdown quench water, which is service water derived directly from the river. The monthly average TSS of the river water during 1978 was 135 mg/liter (intake area). Since June 17, 1978, the station discontinued the tion of this quench water. By eliminating the quench water, the TSS concentration of the basin discharge decreased from 59.7 mg/liter in the first two quarters of 1978 to 9.6 mg/liter in the last two quarters (Table 2.2.2-1).
This exceeds the ETS A licensee event report (LER 79-13/04L) reporting this was filed with the NRC. The prime contributor to the high total suspended solids (TSS) concentration was the blowdown quench water, which is service water derived directly from the river. The monthly average TSS of the river water during 1978 was 135 mg/liter (intake area). Since June 17, 1978, the station discontinued the tion of this quench water. By eliminating the quench water, the TSS concentration of the basin discharge decreased from 59.7 mg/liter in the first two quarters of 1978 to 9.6 mg/liter in the last two quarters (Table 2.2.2-1).
f'.1. P79 9 09 2.2-6 * * * * * * * * * * ** ., i   
f'.1. P79 9 09 2.2-6 * * * * * * * * * * ** ., i   
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* During 1978 the pH of the waste effluent was and discharged between 6.0 and 9.0 whenever discharges were made. The basin discharges into one of the lating water discharge pipes. The high circulating water flow compared to the small quantity of water charged from the waste basin makes it impossible to significantly alter the pH of the circulating water regardless of the pH of the waste basin effluent.
* During 1978 the pH of the waste effluent was and discharged between 6.0 and 9.0 whenever discharges were made. The basin discharges into one of the lating water discharge pipes. The high circulating water flow compared to the small quantity of water charged from the waste basin makes it impossible to significantly alter the pH of the circulating water regardless of the pH of the waste basin effluent.
2.2.3.2 River pH (ETS Section 3.1.1.4) The ecological and water quality monitoring programs on the Delaware River near the station indicated no ence from the operation of the non-radioactive liquid chemical waste basin (refer to Section 2.2.5.2 for a complete discussion of acidity/alkalinity relationships)
2.2.3.2 River pH (ETS Section 3.1.1.4) The ecological and water quality monitoring programs on the Delaware River near the station indicated no ence from the operation of the non-radioactive liquid chemical waste basin (refer to Section 2.2.5.2 for a complete discussion of acidity/alkalinity relationships)
* M P79 9 14 2.2-11
* M P79 9 14 2.2-11 2.2.4 Dissolved Oxygen 2.2.4.1 Station Conditions There was no effect by station operations on dissolved oxygen (D.O.) in the river. Hydrazine was used as an oxygen scavenger in the steam side of the Unit 1 denser system. Although minor leakage did occur in the condensers, this was in-leakage to the steam side venting any discharge of hydrazine (refer to Section 2.2.5.1 for additional discussion on the use of zine at the station).
 
====2.2.4 Dissolved====
 
Oxygen 2.2.4.1 Station Conditions There was no effect by station operations on dissolved oxygen (D.O.) in the river. Hydrazine was used as an oxygen scavenger in the steam side of the Unit 1 denser system. Although minor leakage did occur in the condensers, this was in-leakage to the steam side venting any discharge of hydrazine (refer to Section 2.2.5.1 for additional discussion on the use of zine at the station).
2.2.4.2 River Survey (ETS Section 3.1.1.2) In 1978, dissolved oxygen concentrations were usually higher than the averages in the preoperational datai A definite seasonal trend is present with the lowest centrations occurring during the warmest months (Figure 2.2.4-1).
2.2.4.2 River Survey (ETS Section 3.1.1.2) In 1978, dissolved oxygen concentrations were usually higher than the averages in the preoperational datai A definite seasonal trend is present with the lowest centrations occurring during the warmest months (Figure 2.2.4-1).
The variation in D.O. among sampling tions (Figure 2.2.5-1) is very small and a T-test dicates that the station does not affect the tions significantly (p<.01). The June samples indicate a supersaturation at tions 1 & 2 which seems unlikely.
The variation in D.O. among sampling tions (Figure 2.2.5-1) is very small and a T-test dicates that the station does not affect the tions significantly (p<.01). The June samples indicate a supersaturation at tions 1 & 2 which seems unlikely.
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* INT.utt: *a LOCAnQN ' . OUTSIDE MO OOWNSTllEAll O' THI: 2
* INT.utt: *a LOCAnQN ' . OUTSIDE MO OOWNSTllEAll O' THI: 2
* WIXING ZOii! D ,; " ci JRN fEB MAR APR MAY JUN JUl. AUG SEP OCT NOV Of:C ** PUBLIC SERVICE ELECTRIC *AND GAS COMPANY Dissolved Oxygen as 02 SALEM NUCLEAR GENERATING STATION Figure 2.2.4-1
* WIXING ZOii! D ,; " ci JRN fEB MAR APR MAY JUN JUl. AUG SEP OCT NOV Of:C ** PUBLIC SERVICE ELECTRIC *AND GAS COMPANY Dissolved Oxygen as 02 SALEM NUCLEAR GENERATING STATION Figure 2.2.4-1
* 2.2-13
* 2.2-13 2.2.5 Other Chemicals 2.2.5.1 Chemical Releases (ETS Section 3.1.1.5) An inventory of chemicals used during the reporting period was made and the quantities discharged daily of each of the chemical constituents in ETS Table 3.1.-3 were estimated.
 
====2.2.5 Other====
Chemicals 2.2.5.1 Chemical Releases (ETS Section 3.1.1.5) An inventory of chemicals used during the reporting period was made and the quantities discharged daily of each of the chemical constituents in ETS Table 3.1.-3 were estimated.
Since the production wells were used to supply certain systems which ultimately discharged to the river, the well water chemical constituents were taken into account also in making the daily estimates of the other chemicals in Table 2.2.5-1. Well water consumption by Salem Unit 1 was 2.02 x 108 gals. in 1978. Based on NPDES permit monitoring reports, the Salem Nuclear Generating Station used 28.185 x 1010 gals. of water for cooling and service purposes in 1978 or an average of 7.72 x 108 gal/day. This volume was the basis of calculation used to determine the magnitude of the increases over natural river concentrations produced by the chemical releases shown in Table 2.2.5-1. t-1 P79 9 18 2.2-14 * * * * * * * * * *
Since the production wells were used to supply certain systems which ultimately discharged to the river, the well water chemical constituents were taken into account also in making the daily estimates of the other chemicals in Table 2.2.5-1. Well water consumption by Salem Unit 1 was 2.02 x 108 gals. in 1978. Based on NPDES permit monitoring reports, the Salem Nuclear Generating Station used 28.185 x 1010 gals. of water for cooling and service purposes in 1978 or an average of 7.72 x 108 gal/day. This volume was the basis of calculation used to determine the magnitude of the increases over natural river concentrations produced by the chemical releases shown in Table 2.2.5-1. t-1 P79 9 18 2.2-14 * * * * * * * * * *
* N N I I-' lJ1 * * * * * * *
* N N I I-' lJ1 * * * * * * *
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* * * * * * * * * * *
* * * * * * * * * * *
* 2.2.5.2 River Water Quality (ETS Section 3.1.1.4) During 1978 PSE&G conducted a monthly ambient river water quality sampling and analysis program in accordance with Section 3.1.1 of the Environmental Technical Specifications.
* 2.2.5.2 River Water Quality (ETS Section 3.1.1.4) During 1978 PSE&G conducted a monthly ambient river water quality sampling and analysis program in accordance with Section 3.1.1 of the Environmental Technical Specifications.
No samples were obtained during January because of inclement weather and ice conditions on the river. Three locations, as given in Figure 2.2.5-1, were sampled once each month. Station 1 was located near the circulating water system discharge at a depth of 10 feet. Station 2 was next to the Circulating Water System intake at a depth of 8 feet, and Station 3 was outside and downstream of the mixing zone at a depth of 18 feet. The location of Station 3 varied depending on the tidal stage and direction of flow in the vicinity of Artificial Island. On incoming and high slack tides, the sampling point was adjacent to buoy N4R, approximately  
No samples were obtained during January because of inclement weather and ice conditions on the river. Three locations, as given in Figure 2.2.5-1, were sampled once each month. Station 1 was located near the circulating water system discharge at a depth of 10 feet. Station 2 was next to the Circulating Water System intake at a depth of 8 feet, and Station 3 was outside and downstream of the mixing zone at a depth of 18 feet. The location of Station 3 varied depending on the tidal stage and direction of flow in the vicinity of Artificial Island. On incoming and high slack tides, the sampling point was adjacent to buoy N4R, approximately 2.5 miles north of the discharge.
 
===2.5 miles===
north of the discharge.
On outgoing and low slack tides, the sampling point was next to buoy RBL, about 2 miles south of the discharge.
On outgoing and low slack tides, the sampling point was next to buoy RBL, about 2 miles south of the discharge.
Preoperational data were available from tnree sampling locations:
Preoperational data were available from tnree sampling locations:
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... .--CYAl<OPHYTA 76.7 1.5 90.5 3.4 65.l 0.9 CHLOROPtlYTA 324.5 6.l 435.U 16.4 430.5 5.9 EUf*LENUPHYTA 9.3 .2 16.l 0.2 BACILLARJOPHYTA 4,004.9 76.2 800.2 30.1 6060.0 82.0 1 <+. ( .3 !Sil. 5 3.3 16.4 0.2 PHYlO*fLAGELLATES llZ5.C> 15.7 1,z45.4 46.8 798.9 10.8 TOTAL ABUNDANCE s.2s1.1 2.659.6 7387,0 IA SALEM PP 1978 * * * * * * * * * * * * *   
... .--CYAl<OPHYTA 76.7 1.5 90.5 3.4 65.l 0.9 CHLOROPtlYTA 324.5 6.l 435.U 16.4 430.5 5.9 EUf*LENUPHYTA 9.3 .2 16.l 0.2 BACILLARJOPHYTA 4,004.9 76.2 800.2 30.1 6060.0 82.0 1 <+. ( .3 !Sil. 5 3.3 16.4 0.2 PHYlO*fLAGELLATES llZ5.C> 15.7 1,z45.4 46.8 798.9 10.8 TOTAL ABUNDANCE s.2s1.1 2.659.6 7387,0 IA SALEM PP 1978 * * * * * * * * * * * * *   
* ** ** * * * * * * * * * 'l'ABLE 3.1.1-8 PERCENT COMPOSITION OF PHYTOPLANKTON TAXA WHICH COMPRISED MORE THAN ONE PERCENT OF THE MEAN DENSITY -STATIONS PPOS, PP06, AND PP07 DATE Olli!3/78 04/07/78 04/21/78 05/10/78 05/25/78 06/07/78 06/19/78 07107178 TOOl<OMIC GROUP __________  
* ** ** * * * * * * * * * 'l'ABLE 3.1.1-8 PERCENT COMPOSITION OF PHYTOPLANKTON TAXA WHICH COMPRISED MORE THAN ONE PERCENT OF THE MEAN DENSITY -STATIONS PPOS, PP06, AND PP07 DATE Olli!3/78 04/07/78 04/21/78 05/10/78 05/25/78 06/07/78 06/19/78 07107178 TOOl<OMIC GROUP __________  
.. ____ *CYANOPH1TA UNID. F lLAMEtHS 1.9 *CHLOROPHYTA UNID. FILAMENJS  
.. ____ *CYANOPH1TA UNID. F lLAMEtHS 1.9 *CHLOROPHYTA UNID. FILAMENJS 2.2 ULOJHRIX 1.8 CHLORELLA 1.1 A. fALCHUS 7.8 3.1 1.8 4.6 2.6 s. QlJAORICAUDA 1.0 1.8 1.2 1.0 1., w *EUGLEIWPHYTA I-' *BACILLARIOPHYTA I COSC H*OD ISCUS 1 .1 I-' CYCLOHLLA 1.0 1.9 1 .4 1.0 2.2 O'I 1.7 1.0 1.3 1.4 5.0 1.0 s. COS THUM 69.8 72.7 82.0 74.0 73.3 82.0 77.1 72. 5 THALASSIOSIRA 4.5 1.7 A. FOHMOSA 1.0 2.2 "* JAPO"IICA 4.9 2.3 "IAVlCULA 1.6 1.1 1.1 1.3 IA SALEM PP 1978 w I-' I I-' -.....)
 
===2.2 ULOJHRIX===
1.8 CHLORELLA 1.1 A. fALCHUS 7.8 3.1 1.8 4.6 2.6 s. QlJAORICAUDA 1.0 1.8 1.2 1.0 1., w *EUGLEIWPHYTA I-' *BACILLARIOPHYTA I COSC H*OD ISCUS 1 .1 I-' CYCLOHLLA 1.0 1.9 1 .4 1.0 2.2 O'I 1.7 1.0 1.3 1.4 5.0 1.0 s. COS THUM 69.8 72.7 82.0 74.0 73.3 82.0 77.1 72. 5 THALASSIOSIRA 4.5 1.7 A. FOHMOSA 1.0 2.2 "* JAPO"IICA 4.9 2.3 "IAVlCULA 1.6 1.1 1.1 1.3 IA SALEM PP 1978 w I-' I I-' -.....)
* TABLE 3.1.1-8 CONTINUED  
* TABLE 3.1.1-8 CONTINUED  
**---**-*a-v-------*****--****-**********-************************-************************************-******************
**---**-*a-v-------*****--****-**********-************************-************************************-******************
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sp./Menidia spp.) were the most abundant species. General life history information is presented under Temporal Distribution.
sp./Menidia spp.) were the most abundant species. General life history information is presented under Temporal Distribution.
Bay anchovy comprised 87.8 percent of the total catch
Bay anchovy comprised 87.8 percent of the total catch
* Eggs, larvae, or young were collected from May through Eggs were most abundant in late June and July, larvae in mid-July, and young in late July. Density of eggs and larvae was greatest at stations south of SalemJ of young it was greatest north of Weakfish comprised  
* Eggs, larvae, or young were collected from May through Eggs were most abundant in late June and July, larvae in mid-July, and young in late July. Density of eggs and larvae was greatest at stations south of SalemJ of young it was greatest north of Weakfish comprised 7.6 percent of the total catch. Eggs, larvae, or young occurred from mid-June through August . Eggs were collected only in mid-July, but were not abundant.
 
===7.6 percent===
of the total catch. Eggs, larvae, or young occurred from mid-June through August . Eggs were collected only in mid-July, but were not abundant.
Larval abundance characteristically peaked twice; once in mid-June and once in mid-July.
Larval abundance characteristically peaked twice; once in mid-June and once in mid-July.
Young were most abundant from late June through mid-July.
Young were most abundant from late June through mid-July.
Density of larvae was greatest at stations south of Salem; of young it was greatest north of Salem
Density of larvae was greatest at stations south of Salem; of young it was greatest north of Salem
* Naked goby comprised  
* Naked goby comprised 3.6 percent of the total catch. Larvae or young were collected from mid-June through mid-September.
 
===3.6 percent===
of the total catch. Larvae or young were collected from mid-June through mid-September.
Larvae were most abundant in mid-July; young were collected in mid-July and early August, but were never abundant.
Larvae were most abundant in mid-July; young were collected in mid-July and early August, but were never abundant.
Density of larvae was greatest at stations south of Salem
Density of larvae was greatest at stations south of Salem
* Silversides comprised  
* Silversides comprised 0.3 percent of the total catch. Eggs, larvae, or young occurred from mid-June through early August. Eggs and young were collected in mid-and late June and in late July, but were never abundant; larvae were most abundant in late July. 3.1-26 Catch composition and predominant taxa were similar to previous years. Annual mean density was similar to that in 1976, lower than that in 1973, 1974, and 1977, but greater than that in 1975. In 1978 atypically low salinities from May through August probably contributed to a decrease in annual mean density. 3.1.2.2 Materials and Methods FIELD AND LABORATORY The requirements of the Ichthyoplankton ETS were satisfied.
 
===0.3 percent===
of the total catch. Eggs, larvae, or young occurred from mid-June through early August. Eggs and young were collected in mid-and late June and in late July, but were never abundant; larvae were most abundant in late July. 3.1-26 Catch composition and predominant taxa were similar to previous years. Annual mean density was similar to that in 1976, lower than that in 1973, 1974, and 1977, but greater than that in 1975. In 1978 atypically low salinities from May through August probably contributed to a decrease in annual mean density. 3.1.2.2 Materials and Methods FIELD AND LABORATORY The requirements of the Ichthyoplankton ETS were satisfied.
During daylight, samples were taken at 11 stations (Table 3.1.2-1, Fig. 3.1.2-1), monthly in March through May and September through November, and semimonthly frorn June through August. River icing and inclement weather prevented sampling in January, February, and December.
During daylight, samples were taken at 11 stations (Table 3.1.2-1, Fig. 3.1.2-1), monthly in March through May and September through November, and semimonthly frorn June through August. River icing and inclement weather prevented sampling in January, February, and December.
Replicate samples were taken at stations IP05 through IP07. Samples were collected with 1/2-rneter (0.5-mm mesh) nets (fitted with General Oceanics digital flowmeters, Model 2030) fished simultaneously near surface and near bottom; middepth samples were taken at stations IP03, IP06, and IP09 where depth (MLW) exceeds 9.0 m (20 ft). For a complete description of gear, gear deployment, collection of physicochemical data, *and laboratory procedures refer to Volume 2 of the 1977 Annual Environmental Operating Report. DATA REDUCTION For purposes of data tabulation and discussion, stations were grouped geographically as eastern (IP03, IP05, and IP08), mid-river (IP06 and IP09), and western (IP04, IP07, and IPlO); and north of Salem (IP01-IP04), on the transect west of Salem (IP05-IP07), and south of Salem (IP08-IP11).
Replicate samples were taken at stations IP05 through IP07. Samples were collected with 1/2-rneter (0.5-mm mesh) nets (fitted with General Oceanics digital flowmeters, Model 2030) fished simultaneously near surface and near bottom; middepth samples were taken at stations IP03, IP06, and IP09 where depth (MLW) exceeds 9.0 m (20 ft). For a complete description of gear, gear deployment, collection of physicochemical data, *and laboratory procedures refer to Volume 2 of the 1977 Annual Environmental Operating Report. DATA REDUCTION For purposes of data tabulation and discussion, stations were grouped geographically as eastern (IP03, IP05, and IP08), mid-river (IP06 and IP09), and western (IP04, IP07, and IPlO); and north of Salem (IP01-IP04), on the transect west of Salem (IP05-IP07), and south of Salem (IP08-IP11).
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* western stations it respectively (Table density per station (Table 3.1.2-6).
* western stations it respectively (Table density per station (Table 3.1.2-6).
3 was 0.003, 0.001, and 0.002/m , 3.1.2-5)3 The highest annual mean (0.067/m ) occurred at Station IPOl Annual mean density for surface, and bottom collections was 0.011, 0.001, and respectively (Table 3.1.2-2).
3 was 0.003, 0.001, and 0.002/m , 3.1.2-5)3 The highest annual mean (0.067/m ) occurred at Station IPOl Annual mean density for surface, and bottom collections was 0.011, 0.001, and respectively (Table 3.1.2-2).
Over 85 percent of the total catch of young was collected in surface samples. 2. Weakfish comprised  
Over 85 percent of the total catch of young was collected in surface samples. 2. Weakfish comprised 7.6 percent of the total catch and was represented by 4,796 specimens including 2 eggs, 4,709 larvae, and 85 young (Table 3.1.2-2).
 
===7.6 percent===
of the total catch and was represented by 4,796 specimens including 2 eggs, 4,709 larvae, and 85 young (Table 3.1.2-2).
The annual mean density of eggs, and young was less than 0.001, 0.159, and 0.003/m , respectively.
The annual mean density of eggs, and young was less than 0.001, 0.159, and 0.003/m , respectively.
Two eggs were collected on July 12 at Station IPll (one near surface and one near bottom) at water temperature of 22.0 to 23.7 C and of 7.0 ppt. Mean density on this date was 0.001/rn (Tables 3.1.2-3).
Two eggs were collected on July 12 at Station IPll (one near surface and one near bottom) at water temperature of 22.0 to 23.7 C and of 7.0 ppt. Mean density on this date was 0.001/rn (Tables 3.1.2-3).
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From June 15 to July 12 mean density per date was greatest either north of, or on the transect west of, Salem. Subsequently, catch decreased with no discernible pattern (Table 3.1.2-3).
From June 15 to July 12 mean density per date was greatest either north of, or on the transect west of, Salem. Subsequently, catch decreased with no discernible pattern (Table 3.1.2-3).
Annual mean density for surface, middepth 3 and bottom collections was 0.001, 0.008, and 0.004/m , respectively (Table 3.1.2-2).
Annual mean density for surface, middepth 3 and bottom collections was 0.001, 0.008, and 0.004/m , respectively (Table 3.1.2-2).
: 3. Naked goby comprised  
: 3. Naked goby comprised 3.6 percent of the total catch and was represented by 2,241 specimens including 2,238 larvae and 3 young. The annual mean d3nsity of larvae and young was 0.076 and less than 0.001/m, respectively (Table 3.1.2-2).
 
===3.6 percent===
of the total catch and was represented by 2,241 specimens including 2,238 larvae and 3 young. The annual mean d3nsity of larvae and young was 0.076 and less than 0.001/m, respectively (Table 3.1.2-2).
Larvae were collected from June 15 through September 13 at water temperature of 20.0 to 28.0 C and salinity of l.0 3 to 10.0 ppt. Mean per date increased from 0.003/m on June 15 to 0.396/m on July 12; density steadily decreased through the remainder of the period (Table 3.1.2-3, Fig.
Larvae were collected from June 15 through September 13 at water temperature of 20.0 to 28.0 C and salinity of l.0 3 to 10.0 ppt. Mean per date increased from 0.003/m on June 15 to 0.396/m on July 12; density steadily decreased through the remainder of the period (Table 3.1.2-3, Fig.
Mean density per station 3 on July 12 ranged from 0.023/m* at Station IP02 to 1.873/rn at IP09. Maximum density per collection was 2.218/m (July 12, Station IP09, near surface).
Mean density per station 3 on July 12 ranged from 0.023/m* at Station IP02 to 1.873/rn at IP09. Maximum density per collection was 2.218/m (July 12, Station IP09, near surface).
Line 1,021: Line 985:
* A total of three naked goby young was collected on July 12, and August 10 at water temperature of 26.6 to 27.6 C and salinity of !*0 to 5.0 ppt. Mean per date was than 0.001/m on July 12 and 0.001/m on August 10. One specimen per station was taken near bottom at stations IP02, and IP07 on August 10 and at Station IP09 on July 12 . 4. Silversides taken in the Salem study area are potentially one of three species. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable
* A total of three naked goby young was collected on July 12, and August 10 at water temperature of 26.6 to 27.6 C and salinity of !*0 to 5.0 ppt. Mean per date was than 0.001/m on July 12 and 0.001/m on August 10. One specimen per station was taken near bottom at stations IP02, and IP07 on August 10 and at Station IP09 on July 12 . 4. Silversides taken in the Salem study area are potentially one of three species. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable
* However, young were identified to species and are discussed separately.
* However, young were identified to species and are discussed separately.
Silversides comprised  
Silversides comprised 0.3 percent of the total catch and were represented by 191 specimens including 8 eggs, 182 larvae, and 1 young (Table 3.1.2-2).
 
===0.3 percent===
of the total catch and were represented by 191 specimens including 8 eggs, 182 larvae, and 1 young (Table 3.1.2-2).
Annual mean density of eggs, larvae, 3 and young was less than 0.001, 0.006, and less than 0.001/m , respectively.
Annual mean density of eggs, larvae, 3 and young was less than 0.001, 0.006, and less than 0.001/m , respectively.
Eggs of the silversides were collected on June 15, June 28, an July 27 at water temperature of 21.0 to 27.0 C and salinity of 0.5 to 6.0 Mean density on these dates was 0.001, 0.001, and 0.002/m , respectively (Table 3.1.2-3).
Eggs of the silversides were collected on June 15, June 28, an July 27 at water temperature of 21.0 to 27.0 C and salinity of 0.5 to 6.0 Mean density on these dates was 0.001, 0.001, and 0.002/m , respectively (Table 3.1.2-3).
Line 1,715: Line 1,676:
Density was during May with a peak density on May 17 (17,014/m) (Table 3.1.3-2; Fig. 3.1.3-4).
Density was during May with a peak density on May 17 (17,014/m) (Table 3.1.3-2; Fig. 3.1.3-4).
It was collected at water temperature of 7.0 to 22.0 C and salinity of 0.0 to 7.0 ppt. The genus Branchionus ranked third and was represented by at least eight species. Of these, B. angularis was predominant.
It was collected at water temperature of 7.0 to 22.0 C and salinity of 0.0 to 7.0 ppt. The genus Branchionus ranked third and was represented by at least eight species. Of these, B. angularis was predominant.
It ranked tenth among all and comprjsed  
It ranked tenth among all and comprjsed 1.4 percent of the annual sample (945/m ) (Table 3.1.3-7).
 
===1.4 percent===
of the annual sample (945/m ) (Table 3.1.3-7).
Density was greatest from May to July (Fig.
Density was greatest from May to July (Fig.
Greatest density occurred on May 17 (6,968/m) and May 25 (6,326) (Table 3.1.3-2).
Greatest density occurred on May 17 (6,968/m) and May 25 (6,326) (Table 3.1.3-2).
Line 3,185: Line 3,143:
During other months the percentage ranged from 13.6 to 32.0. It collected at all stations but the catch was greatest at Station OB5A (n = 1,146) where 26.0 percent of the annual catch was taken (Table 3.l.6a-3).
During other months the percentage ranged from 13.6 to 32.0. It collected at all stations but the catch was greatest at Station OB5A (n = 1,146) where 26.0 percent of the annual catch was taken (Table 3.l.6a-3).
The annual n/coll was 35.4 for east stations and 16.3 for west stations.
The annual n/coll was 35.4 for east stations and 16.3 for west stations.
The n/coll for night collections was 14.0; for comparable day collections it was 13.4. 3. Atlantic menhaden (n = 658, age 0+ and l+ young) comprised  
The n/coll for night collections was 14.0; for comparable day collections it was 13.4. 3. Atlantic menhaden (n = 658, age 0+ and l+ young) comprised 5.6 percent of the total catch (Table 3.l.6a-3).
 
===5.6 percent===
of the total catch (Table 3.l.6a-3).
Length range was 22-160 mm. It was collected from May through September (Fig. 3.l.6a-ll).
Length range was 22-160 mm. It was collected from May through September (Fig. 3.l.6a-ll).
During spring it was taken at eight stations and in low numbers. During this period there was a slight increase in abundance from north to south (Fig. 3.l.6a-12).
During spring it was taken at eight stations and in low numbers. During this period there was a slight increase in abundance from north to south (Fig. 3.l.6a-12).
Line 3,200: Line 3,155:
On June 19-20, 146 specimens were taken in two night collections while 49 were taken in two day collections.
On June 19-20, 146 specimens were taken in two night collections while 49 were taken in two day collections.
None were taken in other night collections.
None were taken in other night collections.
: 4. Mummichog (n = 484, young and adult) comprised  
: 4. Mummichog (n = 484, young and adult) comprised 4.2 percent of the total catch. Length range was 22-111 mm. It was taken from March through September and in November and December (Fig. 3.l.6a-14).
 
===4.2 percent===
of the total catch. Length range was 22-111 mm. It was taken from March through September and in November and December (Fig. 3.l.6a-14).
The catch was low from March through May but peaked in June. Abundance subsequently decreased through September.
The catch was low from March through May but peaked in June. Abundance subsequently decreased through September.
During spring murnrnichog were taken at all stations except HOP7 (Fig. 3.l.6a-15).
During spring murnrnichog were taken at all stations except HOP7 (Fig. 3.l.6a-15).
Line 3,273: Line 3,225:
* * * * * * * * * * **
* * * * * * * * * * **
* Hogchoker comprised 60.5 percent of the catch in December and from 32.6 to 51.0 percent of the monthly catch from August through November . It was taken in all zones but was most abundant, based on annual n/T values, in zones W-3, E-5, W-1, SWl, and E-6. It was least abundant in RI2, Ril, and in the channel zones (Table 3.l.6a-7}.
* Hogchoker comprised 60.5 percent of the catch in December and from 32.6 to 51.0 percent of the monthly catch from August through November . It was taken in all zones but was most abundant, based on annual n/T values, in zones W-3, E-5, W-1, SWl, and E-6. It was least abundant in RI2, Ril, and in the channel zones (Table 3.l.6a-7}.
The annual n/T* value west of the channel was 73.5; to the east it was 57.l. The n/T for night collections was 86.8, for comparable day collections it was 37.5. 4. White perch (n = 2,909, young and adult) comprised  
The annual n/T* value west of the channel was 73.5; to the east it was 57.l. The n/T for night collections was 86.8, for comparable day collections it was 37.5. 4. White perch (n = 2,909, young and adult) comprised 2.3 percent of the total catch. Catch frequency was 273. The annual n/T was 3.2; the n/T* was 10.3 {Table 3.l.6a-7)
 
===2.3 percent===
of the total catch. Catch frequency was 273. The annual n/T was 3.2; the n/T* was 10.3 {Table 3.l.6a-7)
* Length range was 32-287 mm. It was taken from March through December (Fig. 3.l.6a-30).
* Length range was 32-287 mm. It was taken from March through December (Fig. 3.l.6a-30).
Catch was moderate in March and increased in April as yearlings and then older fish were taken. However, catch declined in May as many of these fish migrated upriver or into local tributaries.
Catch was moderate in March and increased in April as yearlings and then older fish were taken. However, catch declined in May as many of these fish migrated upriver or into local tributaries.
Line 3,286: Line 3,235:
White perch comprised 83.3, 45.2, and 30.2 percent of the catch in March, April, and December, respectively
White perch comprised 83.3, 45.2, and 30.2 percent of the catch in March, April, and December, respectively
* It was taken in all zones but was most abundant, based on annual n/T values, in zones SW-1, E-5, SSC, and NE2. It was least abundant in the central and southern east zones and the channel zones (Table 3.l.6a-7).
* It was taken in all zones but was most abundant, based on annual n/T values, in zones SW-1, E-5, SSC, and NE2. It was least abundant in the central and southern east zones and the channel zones (Table 3.l.6a-7).
The annual n/T* value west of the channel was 13.7; to the east it was 9.8. The n/T for night collections was 4.7, for comparable day collections it was 3.8. 5. Spot (n = 1,067, almost percent of the total catch. annual n/T was 1.2; the n/T* Length range was 22-233 mm. all age O+ young) comprised  
The annual n/T* value west of the channel was 13.7; to the east it was 9.8. The n/T for night collections was 4.7, for comparable day collections it was 3.8. 5. Spot (n = 1,067, almost percent of the total catch. annual n/T was 1.2; the n/T* Length range was 22-233 mm. all age O+ young) comprised 0.8 Catch frequency was 203. The was 5.3 (Table 3.l.6a-7}.
 
===0.8 Catch===
frequency was 203. The was 5.3 (Table 3.l.6a-7}.
It was taken from June through December (Fig. 3.l.6a-34}.
It was taken from June through December (Fig. 3.l.6a-34}.
Few were taken in June. Catch increased through August as larger young-of-year immigrated into this area from downbay (Fig. 3.l.6a-34).
Few were taken in June. Catch increased through August as larger young-of-year immigrated into this area from downbay (Fig. 3.l.6a-34).
Line 3,297: Line 3,243:
Catch was greater than summer levels in five regions, most notably in the southwest and southeast regions (Fig. 3.l.6a-36).
Catch was greater than summer levels in five regions, most notably in the southwest and southeast regions (Fig. 3.l.6a-36).
However, the distribution during fall was generally similar to that in summer. Spot comprised less than 2.4 percent of any monthly catch. It was taken in all zones except Ril. It was most abundant, based on annual n/T values, in zones SSC, NE2, W-2, NEl, and NW2 and least abundant among the central and southern east zones and the channel zones (Table 3.l.6a-7).
However, the distribution during fall was generally similar to that in summer. Spot comprised less than 2.4 percent of any monthly catch. It was taken in all zones except Ril. It was most abundant, based on annual n/T values, in zones SSC, NE2, W-2, NEl, and NW2 and least abundant among the central and southern east zones and the channel zones (Table 3.l.6a-7).
The annual n/T* value west of the channel was 6.1; to the east it was 5.6. The n/T for night collections was 3.8; for comparable day collections it was 8.0. 6. Atlantic croaker (n = 884, all but one age 0+ young) comprised  
The annual n/T* value west of the channel was 6.1; to the east it was 5.6. The n/T for night collections was 3.8; for comparable day collections it was 8.0. 6. Atlantic croaker (n = 884, all but one age 0+ young) comprised 0.7 percent of the total catch. Catch frequency was 100. The annual n/T was 1.0; the n/T* was 7.9 (Table 3.l.6a-7).
 
===0.7 percent===
of the total catch. Catch frequency was 100. The annual n/T was 1.0; the n/T* was 7.9 (Table 3.l.6a-7).
Length range was 16-90 mm. It was taken from September through December (Fig. 3.l.6a-37). Few were taken in September.
Length range was 16-90 mm. It was taken from September through December (Fig. 3.l.6a-37). Few were taken in September.
Catch increased in October, peaked in November, and decreased in December.
Catch increased in October, peaked in November, and decreased in December.
_Croaker was well distributed among regions during this period although the catch was greatest among west regions (Fig. 3.l.6a-38).
_Croaker was well distributed among regions during this period although the catch was greatest among west regions (Fig. 3.l.6a-38).
Atlantic croaker comprised  
Atlantic croaker comprised 5.7 percent of the November catch but less than 2.5 percent of any other monthly catch. It was taken in all zones except E-2. It was most abundant, based on annual n/T values, in zones SW2, NW2, and Ril and least abundant among the central east zones (Table 3.l.6a-7). The annual n/T* value west of the channel was 14.9; to the east it was 3.5. The small number of Atlantic croaker taken in day-night collections precludes any comparison.
 
===5.7 percent===
of the November catch but less than 2.5 percent of any other monthly catch. It was taken in all zones except E-2. It was most abundant, based on annual n/T values, in zones SW2, NW2, and Ril and least abundant among the central east zones (Table 3.l.6a-7). The annual n/T* value west of the channel was 14.9; to the east it was 3.5. The small number of Atlantic croaker taken in day-night collections precludes any comparison.
: 7. A..merican eel (n = 814, several age groups) comprised 0 .. 6 percent of the total catch. Catch frequency was 219. The annual n/T was 0.9i the n/T* was 3.4 (Table 3.l.6a-7).
: 7. A..merican eel (n = 814, several age groups) comprised 0 .. 6 percent of the total catch. Catch frequency was 219. The annual n/T was 0.9i the n/T* was 3.4 (Table 3.l.6a-7).
Length range was 35-566 mm. It was taken from April through December (Fig. 3.l.6a-39).
Length range was 35-566 mm. It was taken from April through December (Fig. 3.l.6a-39).
Line 3,319: Line 3,259:
It was again taken in all regions during fall although catch in all but one region decreased from summer levels (-Fig. 3.l.6a-42).
It was again taken in all regions during fall although catch in all but one region decreased from summer levels (-Fig. 3.l.6a-42).
American eel comprised less than 1.7 percent in any monthly catch . It was taken in all zones but was most abundant, based on annual n/T values, in zones Ril, RI2, and W-1. It was least abundant in zones CHAl, CHA2, SEO, and SE3 (Table 3.l.6a-7).
American eel comprised less than 1.7 percent in any monthly catch . It was taken in all zones but was most abundant, based on annual n/T values, in zones Ril, RI2, and W-1. It was least abundant in zones CHAl, CHA2, SEO, and SE3 (Table 3.l.6a-7).
The annual n/T* values west of the channel was 3.1; to the east it was 4.4. The n/T for night collections was 2.8; for comparable day collections it was 0.4 . 8. Blueback herring (n = 594, mostly age 0+ and l+ young) comprised  
The annual n/T* values west of the channel was 3.1; to the east it was 4.4. The n/T for night collections was 2.8; for comparable day collections it was 0.4 . 8. Blueback herring (n = 594, mostly age 0+ and l+ young) comprised 0.5 percent of the total catch. Catch frequency was 125. The annual n/T was 0.6; the n/T* was 4.4 (Table 3.l.6a-7).
 
===0.5 percent===
of the total catch. Catch frequency was 125. The annual n/T was 0.6; the n/T* was 4.4 (Table 3.l.6a-7).
Length range was 53-235 mm. It was taken from April through August and during November and December (Fig. 3.l.6a-43).
Length range was 53-235 mm. It was taken from April through August and during November and December (Fig. 3.l.6a-43).
Relatively large numbers were taken during April. The catch comprised exclusively age l+ specimens.
Relatively large numbers were taken during April. The catch comprised exclusively age l+ specimens.
Line 3,346: Line 3,283:
There were 1,140 yearlings taken in the spring; most were caught in May (Table 3.l.6a-9).
There were 1,140 yearlings taken in the spring; most were caught in May (Table 3.l.6a-9).
3.1-220 Young-of-year (n = 287) were taken during October and November as they emigrated from nursery areas. Weekly n/drift hr during the fall was greatest during the first two weeks of November (Table 3.l.6a-ll).
3.1-220 Young-of-year (n = 287) were taken during October and November as they emigrated from nursery areas. Weekly n/drift hr during the fall was greatest during the first two weeks of November (Table 3.l.6a-ll).
It was taken both east and west of the channel during all months except March. The annual n/drift hr was greater in the east (12.7) than west (3.6). 3. Alewife (n = 370, young and adult) comprised  
It was taken both east and west of the channel during all months except March. The annual n/drift hr was greater in the east (12.7) than west (3.6). 3. Alewife (n = 370, young and adult) comprised 4.2 percent of the total catch. Length range was 71-310 mm. It was collected from March through June and in October and November.
 
===4.2 percent===
of the total catch. Length range was 71-310 mm. It was collected from March through June and in October and November.
The alewife was the first of the alosid species to be taken in large numbers during the spring season, indicating its relatively early spawning habit. Adults (n = 300), enroute to spawning areas, were taken from March through mid-May. Weekly n/drift hr during the spring was greatest from late March through mid-April (Table 3.l.6a-ll).
The alewife was the first of the alosid species to be taken in large numbers during the spring season, indicating its relatively early spawning habit. Adults (n = 300), enroute to spawning areas, were taken from March through mid-May. Weekly n/drift hr during the spring was greatest from late March through mid-April (Table 3.l.6a-ll).
Five yearlings were taken in the spring. Young-of-year (n = 65), emigrating from nursery areas, were taken during October and November.
Five yearlings were taken in the spring. Young-of-year (n = 65), emigrating from nursery areas, were taken during October and November.
Line 3,355: Line 3,289:
* * * *
* * * *
* It was taken east and west of the channel in all months. e The n/drift hr was greater in the west during March, April, and October but greater in the east during June and November.
* It was taken east and west of the channel in all months. e The n/drift hr was greater in the west during March, April, and October but greater in the east during June and November.
: 4. Bluefish (n = 121, young and adult) comprised  
: 4. Bluefish (n = 121, young and adult) comprised 1.4 percent of the total catch. Length range was 86-544 mm. It was collected from May through November (Table 3.l.6a-9).
 
===1.4 percent===
of the total catch. Length range was 86-544 mm. It was collected from May through November (Table 3.l.6a-9).
Catch was greatest during June (n/drift hr= 1.3), September (5.4), and October (1.7). Older fish comprised most of the catch in May and June. Length range was 350-466 mm. The remainder were yearlings.
Catch was greatest during June (n/drift hr= 1.3), September (5.4), and October (1.7). Older fish comprised most of the catch in May and June. Length range was 350-466 mm. The remainder were yearlings.
From September through November young-of-year (length range 90-200 mm) predominated the catch. The species was taken east and west of the channel during all months. The n/drift hr was greater in the west during May, September, and October. It was greater in the east during June and November.
From September through November young-of-year (length range 90-200 mm) predominated the catch. The species was taken east and west of the channel during all months. The n/drift hr was greater in the west during May, September, and October. It was greater in the east during June and November.
: 5. American shad (n = 30, young and adult), comprised  
: 5. American shad (n = 30, young and adult), comprised 0.3 percent of the total catch. Length range was 110-505 mm. rt was collected from March June and in November (Table 3.l.6a-9).
 
===0.3 percent===
of the total catch. Length range was 110-505 mm. rt was collected from March June and in November (Table 3.l.6a-9).
Adults (n = 21) enroute to spawning areas were taken from March through May. The weekly n/drift hr in the spring was during mid-April
Adults (n = 21) enroute to spawning areas were taken from March through May. The weekly n/drift hr in the spring was during mid-April
{Table 3.1-221 * * * *
{Table 3.1-221 * * * *
Line 3,414: Line 3,342:
Abundance peaked in July and declined steadily through November except in October when the catch increased slightly.
Abundance peaked in July and declined steadily through November except in October when the catch increased slightly.
3.1-226 Abundance during summer and fall was greatest at stations nearest the mouths (ALL3, APP6) of both tributaries (Fig. 3.l.6b-8).
3.1-226 Abundance during summer and fall was greatest at stations nearest the mouths (ALL3, APP6) of both tributaries (Fig. 3.l.6b-8).
In Alloway Creek the catch at ALL2 was greater than ALLl during summer and fall. In Appoquinimink Creek none were taken at APPS during summer and few were taken at APP3 and APPS during fall. 3. Banded killifish (n = 374, young and adult) comprised  
In Alloway Creek the catch at ALL2 was greater than ALLl during summer and fall. In Appoquinimink Creek none were taken at APPS during summer and few were taken at APP3 and APPS during fall. 3. Banded killifish (n = 374, young and adult) comprised 8.7 percent of the total seine and trawl catch. All were taken by seine. The annual n/coll was 4.7 (Table 3.l.6b-3).
 
===8.7 percent===
of the total seine and trawl catch. All were taken by seine. The annual n/coll was 4.7 (Table 3.l.6b-3).
Length range was 18-91 mm. It was taken from April through December except during August and November (Fig. 3.l.6b-9).
Length range was 18-91 mm. It was taken from April through December except during August and November (Fig. 3.l.6b-9).
Peak abundance occurred in April and the catch declined steadily thereafter.
Peak abundance occurred in April and the catch declined steadily thereafter.
Line 3,423: Line 3,348:
In both tributaries abundance during spring was greatest at the stations furthest upstream and decreased progressively downstream (Fig. 3.l.6b-10).
In both tributaries abundance during spring was greatest at the stations furthest upstream and decreased progressively downstream (Fig. 3.l.6b-10).
The distribution was similar in Alloway Creek during summer. Few were taken during summer in Appoquinimink Creek or during fall in either tributary.
The distribution was similar in Alloway Creek during summer. Few were taken during summer in Appoquinimink Creek or during fall in either tributary.
: 4. White perch (n = 324, several age groups) comprised  
: 4. White perch (n = 324, several age groups) comprised 7.5 percent of the total seine and trawl catch. Some 63 percent were taken by trawl. The annual n/T and n/coll were 1.8 and 1.5, respectively (Tables 3.l.6b-3 and 4). Length range was 13-208 mm. It was taken by trawl from March through November (Fig. 3.l.6b-ll).
 
===7.5 percent===
of the total seine and trawl catch. Some 63 percent were taken by trawl. The annual n/T and n/coll were 1.8 and 1.5, respectively (Tables 3.l.6b-3 and 4). Length range was 13-208 mm. It was taken by trawl from March through November (Fig. 3.l.6b-ll).
Large numbers were taken in April and October. Catch declined from April through August and increased through October. It was taken by seine from June through October (Fig. 3.l.6b-12).
Large numbers were taken in April and October. Catch declined from April through August and increased through October. It was taken by seine from June through October (Fig. 3.l.6b-12).
Peak abundance was in June and the catch declined steadily thereafter.
Peak abundance was in June and the catch declined steadily thereafter.
Line 3,438: Line 3,360:
During spring, distribution in Alloway and Appoquinimink creeks was similar; abundance increased in an upstream progression (Fig. 3.l.6b-16).
During spring, distribution in Alloway and Appoquinimink creeks was similar; abundance increased in an upstream progression (Fig. 3.l.6b-16).
During summer, the catch in Alloway Creek was greatest at ALL4; in Appoquinimink Creek abundance remained greatest upstream.
During summer, the catch in Alloway Creek was greatest at ALL4; in Appoquinimink Creek abundance remained greatest upstream.
During fall, as fish migrated down both tributaries, abundance decreased in the upstream zones. 6. Silvery minnow (n = 304, young and adult) comprised  
During fall, as fish migrated down both tributaries, abundance decreased in the upstream zones. 6. Silvery minnow (n = 304, young and adult) comprised 7.1 percent of the total seine and trawl catch. Some 85 percent were collected by seine. The annual n/coll was 3.3 (Table 3.l.6b-3).
 
===7.1 percent===
of the total seine and trawl catch. Some 85 percent were collected by seine. The annual n/coll was 3.3 (Table 3.l.6b-3).
Length range was 14-124 mm. It was taken in April and June through October (Fig. 3.l.6b-17).
Length range was 14-124 mm. It was taken in April and June through October (Fig. 3.l.6b-17).
Few were taken in April. Abundance peaked in June and decreased steadily through October . Distribution during summer was similar in both tributaries with greatest abundance occurring at upstream stations (Fig. 3.l.6b-18).
Few were taken in April. Abundance peaked in June and decreased steadily through October . Distribution during summer was similar in both tributaries with greatest abundance occurring at upstream stations (Fig. 3.l.6b-18).
This pattern continued during fall in Appoquinimink Creek; few were taken during fall in Alloway Creek
This pattern continued during fall in Appoquinimink Creek; few were taken during fall in Alloway Creek
* 7. Tessellated darter (n = 252, young and adult) comprised  
* 7. Tessellated darter (n = 252, young and adult) comprised 5.9 percent of the total seine and trawl catch. All were taken by seine. The annual n/coll was 3.2 (Table 3.l.6b-3).
 
===5.9 percent===
of the total seine and trawl catch. All were taken by seine. The annual n/coll was 3.2 (Table 3.l.6b-3).
Length range was 15-86 mm. It was taken from June through October except in August (Fig. 3.l.6b-19).
Length range was 15-86 mm. It was taken from June through October except in August (Fig. 3.l.6b-19).
Peak abundance occurred in June after which the catch declined steadily.
Peak abundance occurred in June after which the catch declined steadily.
Distribution was restricted to upstream stations of both tributaries during all seasons (Fig. 3.l.6b-20)
Distribution was restricted to upstream stations of both tributaries during all seasons (Fig. 3.l.6b-20)
* 8. Bay anchovy (n = 218, young and adult) comprised  
* 8. Bay anchovy (n = 218, young and adult) comprised 5.1 percent of the total seine and trawl catch. Some 65 percent were collected by seine. The annual n/coll was 1.8 (Table 3.l.6b-3).
 
===5.1 percent===
of the total seine and trawl catch. Some 65 percent were collected by seine. The annual n/coll was 1.8 (Table 3.l.6b-3).
Length range was 14-81 mm. It was collected by seine from June through October (Fig . 3.l.6b-21).
Length range was 14-81 mm. It was collected by seine from June through October (Fig . 3.l.6b-21).
Abundance was low in June, increased to peak level in August, and subsequently decreased.
Abundance was low in June, increased to peak level in August, and subsequently decreased.
Line 4,524: Line 4,437:
Annual survival was 98 percent; l percent were dead and l percent damaged (Table 3.1.7-1).
Annual survival was 98 percent; l percent were dead and l percent damaged (Table 3.1.7-1).
Percent live ranged from 67 in January to 100 in April. During months of abundance (June-December) percent live ranged from 90 to 99 (Table 3.1.7-3)
Percent live ranged from 67 in January to 100 in April. During months of abundance (June-December) percent live ranged from 90 to 99 (Table 3.1.7-3)
* Fork length ranged from 13 to 186 mm. Weight ranged from 0.1 to 111.7 g. 4. White perch, n = 5,743; est. n = 726,480 (Table 3.1.7-2), comprised  
* Fork length ranged from 13 to 186 mm. Weight ranged from 0.1 to 111.7 g. 4. White perch, n = 5,743; est. n = 726,480 (Table 3.1.7-2), comprised 5.1 percent of the estimated total number and 22.0 percent (ranked second) of the estimated total weight. It was taken during all months. Most (77.l 3.1-340   
 
===5.1 percent===
of the estimated total number and 22.0 percent (ranked second) of the estimated total weight. It was taken during all months. Most (77.l 3.1-340   
-------percent) of the estimatea number was impingea auring February ana December (Table 3.1.7-3).
-------percent) of the estimatea number was impingea auring February ana December (Table 3.1.7-3).
Annual survival was 44 percent; 8 percent were aeaa ana 48 percent damagea (Table 3.1.7-1).
Annual survival was 44 percent; 8 percent were aeaa ana 48 percent damagea (Table 3.1.7-1).
Percent live rangea from zero in September to 77 in April. During months of abunaance (January-March, November, December) percent live rangea from 3 to 72 (Table 3.1.7-3).
Percent live rangea from zero in September to 77 in April. During months of abunaance (January-March, November, December) percent live rangea from 3 to 72 (Table 3.1.7-3).
Fork length rangea from 38 to 293 mm. Weight rangea from 1 .1 to 4 2 7. 6 g. 5. Blueback herring, n = 3,458; est. n = 308,395 (Table 3.1.7-2), comprisea  
Fork length rangea from 38 to 293 mm. Weight rangea from 1 .1 to 4 2 7. 6 g. 5. Blueback herring, n = 3,458; est. n = 308,395 (Table 3.1.7-2), comprisea 2.1 percent of the estimatea total number ana 2.2 percent (rankea eighth) of the estimatea total weight. It was taken auring all months except March. Most (97.0 percent) of the estimatea number was impingea auring November ana December (Table 3.1.7-3).
 
===2.1 percent===
of the estimatea total number ana 2.2 percent (rankea eighth) of the estimatea total weight. It was taken auring all months except March. Most (97.0 percent) of the estimatea number was impingea auring November ana December (Table 3.1.7-3).
Annual survival was 70 percent; 18 percent were deaa and 12 percent damagea (Table 3.1.7-1).
Annual survival was 70 percent; 18 percent were deaa and 12 percent damagea (Table 3.1.7-1).
During months of abunaance (November, December) percent live rangea from 69 to 75 (Table 3.1.7-3).
During months of abunaance (November, December) percent live rangea from 69 to 75 (Table 3.1.7-3).
Fork length rangea from 38 to 278 mm. Weight rangea from 0.1 to 134.3 g. 6. Atlantic silversiae, n = 1,908; est. n = 170,490 (Table 3.1.7-2), comprised  
Fork length rangea from 38 to 278 mm. Weight rangea from 0.1 to 134.3 g. 6. Atlantic silversiae, n = 1,908; est. n = 170,490 (Table 3.1.7-2), comprised 1.2 percent of the estimated total number and 1.1 percent (ranked eleventh) of the estimated total weight. It was taken during January through March and June through December.
 
===1.2 percent===
of the estimated total number and 1.1 percent (ranked eleventh) of the estimated total weight. It was taken during January through March and June through December.
Most (70.4 percent) of the estimated number was impinged during August, October, and December (Table 3.1.7-3).
Most (70.4 percent) of the estimated number was impinged during August, October, and December (Table 3.1.7-3).
Annual survival was 76 percent; 18 percent were dead and 6 percent damaged (Table 3.1.7-1).
Annual survival was 76 percent; 18 percent were dead and 6 percent damaged (Table 3.1.7-1).
Line 4,547: Line 4,451:
Fork length ranged from 23 to 193 mm. Weight ranged from O .1 to 13
Fork length ranged from 23 to 193 mm. Weight ranged from O .1 to 13
* 5 -g
* 5 -g
* 7. Silvery minnow, n = 1,350; est. n = 203,655 (Table 3.1.7-2), comprised  
* 7. Silvery minnow, n = 1,350; est. n = 203,655 (Table 3.1.7-2), comprised 1.4 percent of the estimated total number and 5.3 percent {ranked fifth) of the estimated total weight. It was taken during January through March, June and December.
 
===1.4 percent===
of the estimated total number and 5.3 percent {ranked fifth) of the estimated total weight. It was taken during January through March, June and December.
Most (86.7 percent) of the estimated number was impinged during January and February (Table 3.1.7-3).
Most (86.7 percent) of the estimated number was impinged during January and February (Table 3.1.7-3).
Annual survival was 55 percent; 7 percent were dead and 3 percent damaged (Table 3.1.7-1).
Annual survival was 55 percent; 7 percent were dead and 3 percent damaged (Table 3.1.7-1).
Percent live ranged from 3.1-341 * * * * * * *. * * * ** *   
Percent live ranged from 3.1-341 * * * * * * *. * * * ** *   
* * * * * .* * * * *
* * * * * .* * * * *
* 25 in March to 100 in June. During months of abundance (January, February, December) percent live ranged from 39 to 69 (Table 3.1.7-3) . Fork length ranged from 33 to 143 mm. Weight ranged from 0.1 to 32.4 g. 8. Spot, n = 1,183; est. n = 128,341 (Table 3.1.7-2), comprised  
* 25 in March to 100 in June. During months of abundance (January, February, December) percent live ranged from 39 to 69 (Table 3.1.7-3) . Fork length ranged from 33 to 143 mm. Weight ranged from 0.1 to 32.4 g. 8. Spot, n = 1,183; est. n = 128,341 (Table 3.1.7-2), comprised 0.9 percent of the estimated total number and 4.2 percent (ranked sixth) of the estimated total weight. It was taken during June through December.
 
===0.9 percent===
of the estimated total number and 4.2 percent (ranked sixth) of the estimated total weight. It was taken during June through December.
Most (69.5 percent) of the estimated number was impinged during July, August, and November (Table 3.1.7-3).
Most (69.5 percent) of the estimated number was impinged during July, August, and November (Table 3.1.7-3).
Annual survival was 71 percent; 14 percent were dead and 15 percent damaged (Table 3.1.7-1).
Annual survival was 71 percent; 14 percent were dead and 15 percent damaged (Table 3.1.7-1).
Line 4,566: Line 4,464:
Fork length ranged from 23 to 198 mm. Weight ranged from 0 .1 to 8 9
Fork length ranged from 23 to 198 mm. Weight ranged from 0 .1 to 8 9
* 8 g
* 8 g
* 9. Atlantic menhaden, n = 1,120; est. n = 146,030 (Table 3.1.7-2), comprised  
* 9. Atlantic menhaden, n = 1,120; est. n = 146,030 (Table 3.1.7-2), comprised 0.9 percent of the estimated total number and 1.8 percent (ranked ninth) of the estimated total weight. It was taken during June through December.
 
===0.9 percent===
of the estimated total number and 1.8 percent (ranked ninth) of the estimated total weight. It was taken during June through December.
Most (81.7 percent) of the estimated number was impinged during June through August (Table 3.1.7-3).
Most (81.7 percent) of the estimated number was impinged during June through August (Table 3.1.7-3).
Annual survival was 63 22 percent were dead and 15 percent damaged (Table 3.1.7-1).
Annual survival was 63 22 percent were dead and 15 percent damaged (Table 3.1.7-1).
Percent live ranged from 53 in June to 84 in October. During months of abundance (June-August) percent live ranged from 53 to 66 (Table 3.1.7-3 )
Percent live ranged from 53 in June to 84 in October. During months of abundance (June-August) percent live ranged from 53 to 66 (Table 3.1.7-3 )
* Fork length ranged from 33 to 238 mm. Weight ranged from 0.2 to 194.7 g. 10. Atlantic croaker, n = 689; est. n = 59,086 (Table 3.1.7-2), comprised  
* Fork length ranged from 33 to 238 mm. Weight ranged from 0.2 to 194.7 g. 10. Atlantic croaker, n = 689; est. n = 59,086 (Table 3.1.7-2), comprised 0.4 percent of the estimated total number and 0.1 percent (ranked thirteenth) of the estimated total weight. It was taken during January, and September through December.
 
===0.4 percent===
of the estimated total number and 0.1 percent (ranked thirteenth) of the estimated total weight. It was taken during January, and September through December.
Most (86.4 percent) of the estimated number was impinged during December (Table 3.1.7-3)
Most (86.4 percent) of the estimated number was impinged during December (Table 3.1.7-3)
* Annual was 32 percent; 28 percent were dead and 40 percent damaged (Table 3.1.7-1).
* Annual was 32 percent; 28 percent were dead and 40 percent damaged (Table 3.1.7-1).
Line 4,582: Line 4,474:
During December 27 percent were live (Table 3.1.7-3).
During December 27 percent were live (Table 3.1.7-3).
Fork length ranged from 23 to 88 mm. Weight ranged from 0.1 to 7.6 g. 3.1-342
Fork length ranged from 23 to 88 mm. Weight ranged from 0.1 to 7.6 g. 3.1-342
: 11. Butterfish, n = 671; est. n = 54,419 (Table 3.1.7-2), comprised  
: 11. Butterfish, n = 671; est. n = 54,419 (Table 3.1.7-2), comprised 0.4 percent of the estimated total number and 0.3 percent (ranked twelfth) of the estimated total weight. It was taken during August through October and December.
 
===0.4 percent===
of the estimated total number and 0.3 percent (ranked twelfth) of the estimated total weight. It was taken during August through October and December.
Most (90.7 percent) of the estimated number was impinged during September (Table 3.1.7-3).
Most (90.7 percent) of the estimated number was impinged during September (Table 3.1.7-3).
Annual survival was 84 percent; 8 percent were dead and 8 percent damaged (Table 3.1.7-1).
Annual survival was 84 percent; 8 percent were dead and 8 percent damaged (Table 3.1.7-1).
Percent live ranged from 78 in August to 100 in December.
Percent live ranged from 78 in August to 100 in December.
During September 84 percent were live (Table 3.1.7-3).
During September 84 percent were live (Table 3.1.7-3).
Fork length ranged from 33 to 158 mm. Weight ranged from 0.8 to 66.3 g. 12. Gizzard shad, n = 454; est. n = 65,333 (Table 3.1.7-2), comprised  
Fork length ranged from 33 to 158 mm. Weight ranged from 0.8 to 66.3 g. 12. Gizzard shad, n = 454; est. n = 65,333 (Table 3.1.7-2), comprised 0.5 percent of the estimated total number and 3.5 percent (ranked seventh) of the estimated total weight. It was taken during January, February, and December.
 
===0.5 percent===
of the estimated total number and 3.5 percent (ranked seventh) of the estimated total weight. It was taken during January, February, and December.
Most (98.6 percent) of the estimated number was impinged during January and December (Table 3.1.7-3).
Most (98.6 percent) of the estimated number was impinged during January and December (Table 3.1.7-3).
Annual survival was 19 percent; 18 percent were dead and 63 percent damaged (Table 3.1.7-1).
Annual survival was 19 percent; 18 percent were dead and 63 percent damaged (Table 3.1.7-1).
Percent live ranged from zero in February to 44 in December.
Percent live ranged from zero in February to 44 in December.
During months of abundance (January, December) percent live ranged from 9 to 67 (Table 3.1.7-3).
During months of abundance (January, December) percent live ranged from 9 to 67 (Table 3.1.7-3).
Fork length ranged from 68 tQ 333 mm. Weight ranged from 3.2 to 626.5 g. 13. Striped cusk-eel, n = 343; est. n = 38,062 (Table 3.1.7-2), comprised  
Fork length ranged from 68 tQ 333 mm. Weight ranged from 3.2 to 626.5 g. 13. Striped cusk-eel, n = 343; est. n = 38,062 (Table 3.1.7-2), comprised 0.3 percent of the estimated total number and 1.5 percent (ranked tenth) of the estimated total weight. It was taken during April and June through November.
 
===0.3 percent===
of the estimated total number and 1.5 percent (ranked tenth) of the estimated total weight. It was taken during April and June through November.
Most (92.3 percent) of the estimated number was impinged during July, September, and October (Table 3.1.7-3 )
Most (92.3 percent) of the estimated number was impinged during July, September, and October (Table 3.1.7-3 )
* Annual survival was 87 percent; 2 percent were dead and 11 percent damaged (Table 3.1.7-1).
* Annual survival was 87 percent; 2 percent were dead and 11 percent damaged (Table 3.1.7-1).
Line 4,635: Line 4,518:
: 2. White perch, n = 1,091; est. n = 2,580 (Table comprised 10.l percent of the estimated total number and 15.l percent (ranked first) of the estimated total weight. It was taken during all months except August. Most (94 percent) was impinged during January through March and December (Table 3.1.7-7).
: 2. White perch, n = 1,091; est. n = 2,580 (Table comprised 10.l percent of the estimated total number and 15.l percent (ranked first) of the estimated total weight. It was taken during all months except August. Most (94 percent) was impinged during January through March and December (Table 3.1.7-7).
In September only one specimen was taken. Fork length ranged from 43 to 253 mm. Weight ranged from 1.3 to 223.0 g (Table 3.1.7-7).
In September only one specimen was taken. Fork length ranged from 43 to 253 mm. Weight ranged from 1.3 to 223.0 g (Table 3.1.7-7).
: 3. Bay anchovy, n = 681; est. n = 1,592 (Table 3.1.7-6), comprised  
: 3. Bay anchovy, n = 681; est. n = 1,592 (Table 3.1.7-6), comprised 6.3 percent of the estimated total number and 3.4 percent (ranked eighth) of the estimated total weight. It was taken during April through December.
 
===6.3 percent===
of the estimated total number and 3.4 percent (ranked eighth) of the estimated total weight. It was taken during April through December.
Most (94 percent) was impinged during May through August 3.1.7-7).
Most (94 percent) was impinged during May through August 3.1.7-7).
During December only one specimen was taken. Fork length ranged from 33 to 98 mm. Weight ranged from 0.2 to 10.0 g (Table 3.1.7-7).
During December only one specimen was taken. Fork length ranged from 33 to 98 mm. Weight ranged from 0.2 to 10.0 g (Table 3.1.7-7).
: 4. Hogchoker, n = 434; est. n = 1,015 (Table 3.1.7-6), comprised  
: 4. Hogchoker, n = 434; est. n = 1,015 (Table 3.1.7-6), comprised 4.0 percent of the estimated total number and 4.1 percent (ranked sixth) of the estimated total weight. It was taken during March through December.
 
===4.0 percent===
of the estimated total number and 4.1 percent (ranked sixth) of the estimated total weight. It was taken during March through December.
Most (71 percent) was impinged during June and July (Table 3.1.7-7).
Most (71 percent) was impinged during June and July (Table 3.1.7-7).
In March only one specimen was taken. Fork length ranged from 28 to 183 mm. Weight ranged from 0.1 to 127.5 g (Table 3.1.7-7)
In March only one specimen was taken. Fork length ranged from 28 to 183 mm. Weight ranged from 0.1 to 127.5 g (Table 3.1.7-7)
* 5. Gizzard shad, n = 384; est. n = 915 (Table 3.1.7-6), comprised  
* 5. Gizzard shad, n = 384; est. n = 915 (Table 3.1.7-6), comprised 3.6 percent of the estimated total number and 15.0 percent (ranked second) of the estimated total weight. It was taken during January through March and December.
 
===3.6 percent===
of the estimated total number and 15.0 percent (ranked second) of the estimated total weight. It was taken during January through March and December.
Most (93 percent) was impinged during January (Table 3.1.7-7)
Most (93 percent) was impinged during January (Table 3.1.7-7)
* It was also common during December (n = 20). Only single specimens were taken in February and March. Fork length ranged from 73 to 218 mm. Weight ranged from 3.7 to 161.5 g (Table 3.1.7-7).
* It was also common during December (n = 20). Only single specimens were taken in February and March. Fork length ranged from 73 to 218 mm. Weight ranged from 3.7 to 161.5 g (Table 3.1.7-7).
: 6. Silvery minnow, n = 327; est. n = 709 (Table 3.1.7-6), comprised  
: 6. Silvery minnow, n = 327; est. n = 709 (Table 3.1.7-6), comprised 2.8 percent of the estimated total number and 6.0 percent (ranked fourth) of the estimated total weight. It 3.1-346 was taken during January through April, June, and December.
 
===2.8 percent===
of the estimated total number and 6.0 percent (ranked fourth) of the estimated total weight. It 3.1-346 was taken during January through April, June, and December.
Most (92 percent) was impinged during January and February (Table 3.1.7-7).
Most (92 percent) was impinged during January and February (Table 3.1.7-7).
Only single specimens were taken during April and June. Fork length ranged from 48 to 163 mm. Weight ranged from 1.1 to 31.6 g (Table 3.1.7-7).
Only single specimens were taken during April and June. Fork length ranged from 48 to 163 mm. Weight ranged from 1.1 to 31.6 g (Table 3.1.7-7).
: 7. Blueback herring, n = 287; est. n = 668 (Table 3.1.7-6), comprised  
: 7. Blueback herring, n = 287; est. n = 668 (Table 3.1.7-6), comprised 2.6 percent of the estimated total number and 3.1 percent (ranked ninth) of the estimated total weight. It was taken during January, March through July, November and December.
 
===2.6 percent===
of the estimated total number and 3.1 percent (ranked ninth) of the estimated total weight. It was taken during January, March through July, November and December.
Most (90 percent) was impinged during March, April, and December (Table 3.1.7-7).
Most (90 percent) was impinged during March, April, and December (Table 3.1.7-7).
Few were taken during January (n = 3), May (3), July (2), or July (1). Fork length ranged from 38 to 263 mm. Weight ranged from 1.5 to 222.4 g (Table 3.1.7-7).
Few were taken during January (n = 3), May (3), July (2), or July (1). Fork length ranged from 38 to 263 mm. Weight ranged from 1.5 to 222.4 g (Table 3.1.7-7).
: 8. Atlantic menhaden, n = 206; est. n = 496 (Table 3.1.7-6), comprised  
: 8. Atlantic menhaden, n = 206; est. n = 496 (Table 3.1.7-6), comprised 2.0 percent of the estimated total number and 3.9 percent (ranked seventh) of the estimated total weight. It was taken during April through December.
 
===2.0 percent===
of the estimated total number and 3.9 percent (ranked seventh) of the estimated total weight. It was taken during April through December.
Most (81 percent) was impinged during June and July (Table 3.1.7-7).
Most (81 percent) was impinged during June and July (Table 3.1.7-7).
Few (n = 1-9) were taken during the remaining months of occurrence.
Few (n = 1-9) were taken during the remaining months of occurrence.
Fork length ranged from 33 to 223 mm. Weight ranged from 0.2 to 148.0 g (Table 3.1.7-7).
Fork length ranged from 33 to 223 mm. Weight ranged from 0.2 to 148.0 g (Table 3.1.7-7).
: 9. Atlantic croaker, n = 130; est. n = 315 (Table 3.1.7-6), comprised  
: 9. Atlantic croaker, n = 130; est. n = 315 (Table 3.1.7-6), comprised 1.2 percent of the estimated total number and 0.2 percent (ranked tenth) of the estimated total weight. It_ was taken during January, October, and December.
 
===1.2 percent===
of the estimated total number and 0.2 percent (ranked tenth) of the estimated total weight. It_ was taken during January, October, and December.
Most (98 percent) was impinged during December 3.1.7-7).
Most (98 percent) was impinged during December 3.1.7-7).
Two were taken during January and one was taken in October. Fork length ranged from 28 to 73. Weight ranged from 0.1 to 3.8 g (Table 3.1.7-7).
Two were taken during January and one was taken in October. Fork length ranged from 28 to 73. Weight ranged from 0.1 to 3.8 g (Table 3.1.7-7).
: 10. Spot, n = 105; est. n = 250 (Table 3.1.7-6), comprised  
: 10. Spot, n = 105; est. n = 250 (Table 3.1.7-6), comprised 1.0 percent of the estimated total number and 5.0 percent (ranked fifth) of the estimated total weight. It was taken during January and June through December.
 
===1.0 percent===
of the estimated total number and 5.0 percent (ranked fifth) of the estimated total weight. It was taken during January and June through December.
Most (68 percent) was impinged during August, September, and November (Table 3.1.7-7).
Most (68 percent) was impinged during August, September, and November (Table 3.1.7-7).
Impingement was low during January (n = 1) and June (3). Fork length ranged from 28 to 168 mm. Weight ranged from 0.1 to 88.9 g (Table 3.1.7-7).
Impingement was low during January (n = 1) and June (3). Fork length ranged from 28 to 168 mm. Weight ranged from 0.1 to 88.9 g (Table 3.1.7-7).
Line 4,856: Line 4,715:
* Gastropoda (veliger) comprised 10.l percent of the total catch *. It was co1lected from June through October with peak density (15,266/m  
* Gastropoda (veliger) comprised 10.l percent of the total catch *. It was co1lected from June through October with peak density (15,266/m  
+ 4,733) on August 31-September 1
+ 4,733) on August 31-September 1
* 3.1-369 P. coronatus comprised  
* 3.1-369 P. coronatus comprised 8.3 percent of the total catch. It occurred in March and from June through mid-December with peak density (26,952/m  
 
===8.3 percent===
of the total catch. It occurred in March and from June through mid-December with peak density (26,952/m  
+ 21,890) on July 12-13. Other abundant taxa, which together comprised 21.2 percent of the total catch, were: Ectinosoma spp., Polychaeta (eggs and larvae), Eurytemora affinis, Cirripedia (nauplii and cypris larvae) and Nematoda.
+ 21,890) on July 12-13. Other abundant taxa, which together comprised 21.2 percent of the total catch, were: Ectinosoma spp., Polychaeta (eggs and larvae), Eurytemora affinis, Cirripedia (nauplii and cypris larvae) and Nematoda.
Survival Studies Thirty-four paired intake and discharge microzooplankton samples were collected during three 24-hr sampling periods in 1978. A total of 2,754 mic3ozooplankters representing 39 taxa were collected in 14.5 m of water filtered.
Survival Studies Thirty-four paired intake and discharge microzooplankton samples were collected during three 24-hr sampling periods in 1978. A total of 2,754 mic3ozooplankters representing 39 taxa were collected in 14.5 m of water filtered.
Line 4,877: Line 4,733:
+ 36,101). R. harrisii comprised 11.2 percent of the total catch. Greatest density occurred 3 from June through mid-August.
+ 36,101). R. harrisii comprised 11.2 percent of the total catch. Greatest density occurred 3 from June through mid-August.
Peak density {14,299/lOOm  
Peak density {14,299/lOOm  
+ 15,258) occurred on July 12-13 . Other abundant taxa which comprised  
+ 15,258) occurred on July 12-13 . Other abundant taxa which comprised 6.6 percent of the total catch were: Gammarus spp., Edotea triloba, Corophium spp., Brachyura, Leucon americanus, Palaemonetes pugio, Crangon septemspinosa, and Hydrozoa (medusae).
 
===6.6 percent===
of the total catch were: Gammarus spp., Edotea triloba, Corophium spp., Brachyura, Leucon americanus, Palaemonetes pugio, Crangon septemspinosa, and Hydrozoa (medusae).
* Survival Studies Twenty-three paired intake and discharge macrozooplankton survival samples were collected during three 24-hr sampling periods in 1978: 5 pairs during April 19-20, 7 pairs during June 28-29, and 11 pairs during September 13-14. A total of 46,93! macroplankters representing 28 taxa was collected in 105 m of water filtered.
* Survival Studies Twenty-three paired intake and discharge macrozooplankton survival samples were collected during three 24-hr sampling periods in 1978: 5 pairs during April 19-20, 7 pairs during June 28-29, and 11 pairs during September 13-14. A total of 46,93! macroplankters representing 28 taxa was collected in 105 m of water filtered.
The most abundant taxa were: Neomysis americana, Gammarus spp., and Rhithropanopeus harrisii.
The most abundant taxa were: Neomysis americana, Gammarus spp., and Rhithropanopeus harrisii.
Line 4,897: Line 4,750:
+ 1.045), and in mid-September (0 oar . 0  
+ 1.045), and in mid-September (0 oar . 0  
-Jo = .
-Jo = .
* Naked goby comprised  
* Naked goby comprised 3.7 percent of the total catch. Larvae or young were collected.from late June through September and in late November.
 
Larvae were abundant in mid-July (mean density per date = 0.574/m + 0.233) and young in late August-early September (0.043 0.040) . Weakfish comprised 3.7 percent of the total catch. Larvae or young were collected from late June through mid-September and in early November.
===3.7 percent===
of the total catch. Larvae or young were collected.from late June through September and in late November.
Larvae were abundant in mid-July (mean density per date = 0.574/m + 0.233) and young in late August-early September (0.043 0.040) . Weakfish comprised  
 
===3.7 percent===
of the total catch. Larvae or young were collected from late June through mid-September and in early November.
A single egg was collected in July. Larvae and young were most abundant in late 3 June (mean density per date= 0.613 + 0.398 and 0.636/m + 0.513, respectively).  
A single egg was collected in July. Larvae and young were most abundant in late 3 June (mean density per date= 0.613 + 0.398 and 0.636/m + 0.513, respectively).  
-Silversides comprised  
-Silversides comprised 1.5 percent of the total catch. Eggs or larvae were collected from late June through late early September.
 
===1.5 percent===
of the total catch. Eggs or larvae were collected from late June through late early September.
Eggs most abundant in mid-July (mean density per dat3 = 0.007/rnJ  
Eggs most abundant in mid-July (mean density per dat3 = 0.007/rnJ  
+ 0.008) and larvae in August (0.465/m + 0.758). Survival Studies Twenty-three paired intake and discharge ichthyoplankton survival samples were collected during three 24-hr sampling periods in 1978. Of the 319 specimens of nine species collected, young bay anchovy and larval and young weakfish were most abundant.
+ 0.008) and larvae in August (0.465/m + 0.758). Survival Studies Twenty-three paired intake and discharge ichthyoplankton survival samples were collected during three 24-hr sampling periods in 1978. Of the 319 specimens of nine species collected, young bay anchovy and larval and young weakfish were most abundant.
Line 4,952: Line 4,796:
* It was coll3cted from June through October with peak density (15,266/m  
* It was coll3cted from June through October with peak density (15,266/m  
+ 4,733) on August 31-September 1 (Table 3.1.8-1).
+ 4,733) on August 31-September 1 (Table 3.1.8-1).
It was-collected at water temperature 17.3 to 28.7 C and salinity 4.0 to 10.0 ppt. Pseudodiaptomus coronatus comprised  
It was-collected at water temperature 17.3 to 28.7 C and salinity 4.0 to 10.0 ppt. Pseudodiaptomus coronatus comprised 8.3 percent of the annual sample and was the fifth most abundant (Table 3.1.8-2).
 
===8.3 percent===
of the annual sample and was the fifth most abundant (Table 3.1.8-2).
Annual mean 3 density was 3,238/m
Annual mean 3 density was 3,238/m
* Females were more abundant (1,551/m ) than males (1,095) or copepodids (592). It occurred in March and from June through mid-December with peak density (26,952/m  
* Females were more abundant (1,551/m ) than males (1,095) or copepodids (592). It occurred in March and from June through mid-December with peak density (26,952/m  
+ 21,890) on July 12-13 (Table 3.1.8-1).
+ 21,890) on July 12-13 (Table 3.1.8-1).
It was collected at-water temperature 0.6 to 28.7 C and salinity of 3.0 to 12.0 ppt. Ectinosoma spp. comprised  
It was collected at-water temperature 0.6 to 28.7 C and salinity of 3.0 to 12.0 ppt. Ectinosoma spp. comprised 7.8 percent of the annual sample and was the sixth most abundant microzooplankter Jollected (Table 3.1.8-2).
 
===7.8 percent===
of the annual sample and was the sixth most abundant microzooplankter Jollected (Table 3.1.8-2).
Annual density was 3,009/m. Adults .were more abundant (2,892/m ) than copepodids (117). It was on every sampling date with peak density (6,972/m + 3,166) on Julv 12-13 (Table 3.1.8-1).
Annual density was 3,009/m. Adults .were more abundant (2,892/m ) than copepodids (117). It was on every sampling date with peak density (6,972/m + 3,166) on Julv 12-13 (Table 3.1.8-1).
It was collected at water 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Polychaeta (eggs and larvae) comprised  
It was collected at water 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Polychaeta (eggs and larvae) comprised 7.7 percent of the annual sample and was the seventh most abundant rnicrozooplankter (Table 3.1.8-2).
 
===7.7 percent===
of the annual sample and was the seventh most abundant rnicrozooplankter (Table 3.1.8-2).
Annual density was 2,978/m . Eggs were more abundant (2,394/rn ) than larvae (584). It was collected on all sampling dates 3.1-376 * * * * * * *. ** * * ** *   
Annual density was 2,978/m . Eggs were more abundant (2,394/rn ) than larvae (584). It was collected on all sampling dates 3.1-376 * * * * * * *. ** * * ** *   
* * * * * * .* * * *
* * * * * * .* * * *
* and most abundant from February through March 3 and November (Table 3.1.8-1).
* and most abundant from February through March 3 and November (Table 3.1.8-1).
Peak density (24,280/m  
Peak density (24,280/m  
+ 15,856) occurred on November 1-2. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Euytemora affinis comprised  
+ 15,856) occurred on November 1-2. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Euytemora affinis comprised 3.5 percent of the annual sa.mp.le and was the eighth most abundant (Table 3.1.8-2).
 
===3.5 percent===
of the annual sa.mp.le and was the eighth most abundant (Table 3.1.8-2).
Annual mean was 1,342/mJ.
Annual mean was 1,342/mJ.
Copepodids were more abundant (809/m ) than males (304) or females (225). It was collected on all sampling dates (Table 3.1.8-1).
Copepodids were more abundant (809/m ) than males (304) or females (225). It was collected on all sampling dates (Table 3.1.8-1).
Greatest density occurred from Feb3uary through July and in December.
Greatest density occurred from Feb3uary through July and in December.
Peak density (6,663/m + 4,746) occurred on July 12-13. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Cirripedia (nauplii and cypris larvae) comprised  
Peak density (6,663/m + 4,746) occurred on July 12-13. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Cirripedia (nauplii and cypris larvae) comprised 1.6 percent of the annual sample and was the ninth most abundant microzooplankter 9ollected (Table 3.1.8-2).
 
===1.6 percent===
of the annual sample and was the ninth most abundant microzooplankter 9ollected (Table 3.1.8-2).
Annual mean density was 638/mJ. Nauplii were more abundant than cypris larvae (5). It was collected from June through mid-December and was most abundant from 3 June through August (Table 3.1.8-1).
Annual mean density was 638/mJ. Nauplii were more abundant than cypris larvae (5). It was collected from June through mid-December and was most abundant from 3 June through August (Table 3.1.8-1).
Peak density (2,684/m + 1,779) occurred on July 12-13. It was collected at water-temperature 5.0 :to 28.7 C and salinity 4.0 to 12.0 ppt. Nematoda comprised  
Peak density (2,684/m + 1,779) occurred on July 12-13. It was collected at water-temperature 5.0 :to 28.7 C and salinity 4.0 to 12.0 ppt. Nematoda comprised 0.6 percent of the annual sample and was the tenth most abundant microzooplankter 3 collected (Table 3.1.8-2}.
 
===0.6 percent===
of the annual sample and was the tenth most abundant microzooplankter 3 collected (Table 3.1.8-2}.
Annual mean density was 224/m . Greatest density occurred from February through 3 July and in September (Table 3.1.8-1).
Annual mean density was 224/m . Greatest density occurred from February through 3 July and in September (Table 3.1.8-1).
Peak density (719/m + 1,206) occurred on April 19-20. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt.
Peak density (719/m + 1,206) occurred on April 19-20. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt.
Line 5,023: Line 4,849:
Peak density (14,299/lOOm  
Peak density (14,299/lOOm  
+
+
occurred on July 12-13. It was collected at water temperature 5.0 to 28.7 c and salinity 4.0 to 10.0 ppt. Gammarus spp., the scud, comprised  
occurred on July 12-13. It was collected at water temperature 5.0 to 28.7 c and salinity 4.0 to 10.0 ppt. Gammarus spp., the scud, comprised 2.2 percent of the annual sample and was the third most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5).
 
===2.2 percent===
of the annual sample and was the third most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5).
Annual mean density was 573/lOOm
Annual mean density was 573/lOOm
* It occurred from March through December (Table 3.1.8-4).
* It occurred from March through December (Table 3.1.8-4).
Generally, density was greate3t during June through September; it peaked (1,615/lOOm  
Generally, density was greate3t during June through September; it peaked (1,615/lOOm  
+ 697) on June 28-29. It was collected at water temperature-0.6 to 28.7 C and salinity 1.0 to 15.0 ppt. Edotea triloba, an isopod, comprised  
+ 697) on June 28-29. It was collected at water temperature-0.6 to 28.7 C and salinity 1.0 to 15.0 ppt. Edotea triloba, an isopod, comprised 1.7 percent of the annual sample and was the fourth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
 
===1.7 percent===
of the annual sample and was the fourth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
Annual mean density was 439/lOOm
Annual mean density was 439/lOOm
* It occurred from March through mid-December (Table 3.1.8-4).
* It occurred from March through mid-December (Table 3.1.8-4).
Density was greate3t during June through early November; it peaked (3,736/lOOm  
Density was greate3t during June through early November; it peaked (3,736/lOOm  
+ 3,595) on September 13-14. It was collected at water -temperature 1.0 to 28.7 C and salinity 3.0 to 10.0 ppt. Corophium spp., the scud, comprised  
+ 3,595) on September 13-14. It was collected at water -temperature 1.0 to 28.7 C and salinity 3.0 to 10.0 ppt. Corophium spp., the scud, comprised 0.7 percent of the annual sample. It was the second most abundant amphipod and the fifth most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5).
 
===0.7 percent===
of the annual sample. It was the second most abundant amphipod and the fifth most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5).
Annual mean density was 197/lOOrn.
Annual mean density was 197/lOOrn.
It occurred on all sampling dates from March through December (Table 3.1.8-4).
It occurred on all sampling dates from March through December (Table 3.1.8-4).
Line 5,047: Line 4,864:
+ 253) occurred on August 10-11. It was collected at temperature 0.6 to 28.7 C and salinity 4.0 to 12.0 ppt. 3.1-380 * * * * * * *. * * * ** *   
+ 253) occurred on August 10-11. It was collected at temperature 0.6 to 28.7 C and salinity 4.0 to 12.0 ppt. 3.1-380 * * * * * * *. * * * ** *   
* * * * * * * * * **
* * * * * * * * * **
* Brachyura comprised  
* Brachyura comprised 0.7 percent of the annual sample and was the sixth most abundant macroinvertebrate (Table 3.1.8-5).
 
===0.7 percent===
of the annual sample and was the sixth most abundant macroinvertebrate (Table 3.1.8-5).
Annual mean density was It occurred June through mid-August, with peak density (l,642/lOOm  
Annual mean density was It occurred June through mid-August, with peak density (l,642/lOOm  
+ 977) on August 10-11 (Table 3.1.8-4).
+ 977) on August 10-11 (Table 3.1.8-4).
It was collected at water temperature 23.7 to 28.7 C and salinity 6.0 to 8.0 ppt. Leucon americanus, a cumacean shrimp, comprised  
It was collected at water temperature 23.7 to 28.7 C and salinity 6.0 to 8.0 ppt. Leucon americanus, a cumacean shrimp, comprised 0.4 percent of the annual sample and was the seventh most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
 
===0.4 percent===
of the annual sample and was the seventh most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
Annual mean density was 113/lOOm
Annual mean density was 113/lOOm
* It occurred from June through December, with greatest density during late through November (Table 3.1.8-4).
* It occurred from June through December, with greatest density during late through November (Table 3.1.8-4).
Peak density (763/lOOm  
Peak density (763/lOOm  
+ 592) occurred on September 13-14. It was collected at water temperature 5.0 to 28.7 C and salinity 4.5 to 15.0 ppt. Palaemonetes pugio, the grass shrimp, comprised  
+ 592) occurred on September 13-14. It was collected at water temperature 5.0 to 28.7 C and salinity 4.5 to 15.0 ppt. Palaemonetes pugio, the grass shrimp, comprised 0.4 percent of the annual sample and was the eighth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
 
===0.4 percent===
of the annual sample and was the eighth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5).
Annual mean density was 109/lOOm
Annual mean density was 109/lOOm
* It occurred from April through December, with greatest density July and August (Table 3.1.8-4).
* It occurred from April through December, with greatest density July and August (Table 3.1.8-4).
Peak density (344/lOOrn  
Peak density (344/lOOrn  
+ 150) occurred on August 10-11. It was collected at water tempera tu re 5. 0 to 28.7 C and salinity 4.0 to 15.0 ppt. Crangon septernspinosa, the sand shrimp, comprised  
+ 150) occurred on August 10-11. It was collected at water tempera tu re 5. 0 to 28.7 C and salinity 4.0 to 15.0 ppt. Crangon septernspinosa, the sand shrimp, comprised 0.3 percent of the annual sample and was the ninth most abundant macroinvertebrate plankter coll3cted (Table 3.1.8-5).
 
===0.3 percent===
of the annual sample and was the ninth most abundant macroinvertebrate plankter coll3cted (Table 3.1.8-5).
Annual mean density was 77/lOOm . It occurred on all sampling dates from March through 3 December with peak densities on 3 June 28-29 (391/lOOm  
Annual mean density was 77/lOOm . It occurred on all sampling dates from March through 3 December with peak densities on 3 June 28-29 (391/lOOm  
+ 517) and September 13-14 (360/lOOm  
+ 517) and September 13-14 (360/lOOm  
+ 366) (Table 3.1.8-4).
+ 366) (Table 3.1.8-4).
It was collected at water temperature 0.6 to 28.7 C and salinity 4.0 to 15.0 ppt. Hydrozoa (medusae) comprised  
It was collected at water temperature 0.6 to 28.7 C and salinity 4.0 to 15.0 ppt. Hydrozoa (medusae) comprised 0.2 percent of the annual sample. It was the most abundant hydromedusae and tenth most abundant macroinvertebrate plankter (Table 3.1.8-5).
 
===0.2 percent===
of the annual sample. It was the most abundant hydromedusae and tenth most abundant macroinvertebrate plankter (Table 3.1.8-5).
Annual mean density was 55/lOOrn.
Annual mean density was 55/lOOrn.
It was collected from August November (Table 3.1.8-4).
It was collected from August November (Table 3.1.8-4).
Line 5,130: Line 4,932:
Density per on August 31-September 1 ranged from 0.010 to 5.620/m. Bay anchovy adults ranked first in and comprised 91.7 percent of the total adult catch (Table 3.1.8-7).
Density per on August 31-September 1 ranged from 0.010 to 5.620/m. Bay anchovy adults ranked first in and comprised 91.7 percent of the total adult catch (Table 3.1.8-7).
Adults were collected from June 28-29 through October 11 at water temperature 17.8 to 28.7 C and salinity 4 5 0 to 10.0 ppt. Mean density per date from 0.002/m + 0.004 on August 31-Septernber 1 to 0.085/m + 0.065 on September 13-14 (Table 3.1.8-8).
Adults were collected from June 28-29 through October 11 at water temperature 17.8 to 28.7 C and salinity 4 5 0 to 10.0 ppt. Mean density per date from 0.002/m + 0.004 on August 31-Septernber 1 to 0.085/m + 0.065 on September 13-14 (Table 3.1.8-8).
3 nensity per collection on September 13-14 ranged to 0.260/m . 3.1-385 Naked goby comprised  
3 nensity per collection on September 13-14 ranged to 0.260/m . 3.1-385 Naked goby comprised 3.7 percent of the total catch and was represented by 1,119 specimens including 1,085 larvae and 34 young (Table 3.1.8-7).
 
===3.7 percent===
of the total catch and was represented by 1,119 specimens including 1,085 larvae and 34 young (Table 3.1.8-7).
The mean density of larvae and young was 0.151 and 0.005/m , respectively.
The mean density of larvae and young was 0.151 and 0.005/m , respectively.
Naked goby larvae ranked second in and comprised 10.4 percent of the total larval catch (Table 3.1.8-7).
Naked goby larvae ranked second in and comprised 10.4 percent of the total larval catch (Table 3.1.8-7).
Larvae were collected from June 28-29 through September 13-14 and on November 1-2 at water temperature 14.5 to 28.7 C and salinity 4.0 to 10.0 ppt. Mean density per date ran&sect;ed from 0.003 on September 13-14 and November 1-2 to 0.574/m + 0.233 on July 12-13 (Table 3.1.8-8).
Larvae were collected from June 28-29 through September 13-14 and on November 1-2 at water temperature 14.5 to 28.7 C and salinity 4.0 to 10.0 ppt. Mean density per date ran&sect;ed from 0.003 on September 13-14 and November 1-2 to 0.574/m + 0.233 on July 12-13 (Table 3.1.8-8).
per collection on July 12-13 ranged from 0.020 to 1.260/m
per collection on July 12-13 ranged from 0.020 to 1.260/m
* Naked goby young ranked fourth in and comprised  
* Naked goby young ranked fourth in and comprised 1.8 percent of the total young catch (Table 3.1.8-7).
 
===1.8 percent===
of the total young catch (Table 3.1.8-7).
Young were collected on July 12-13, July 27-28, August 31-September 1 and November 21-22 at water temperature 12.0 to 27.0 C and 5.0 to 12.0 ppt. Mean density per date was 0.002/m +/- 0.004 on July 2j-28, August 31-September 1, and November 21-22 and 0.043/m + 0.040 on August 31-September 1 (Table 3.1.8-8).
Young were collected on July 12-13, July 27-28, August 31-September 1 and November 21-22 at water temperature 12.0 to 27.0 C and 5.0 to 12.0 ppt. Mean density per date was 0.002/m +/- 0.004 on July 2j-28, August 31-September 1, and November 21-22 and 0.043/m + 0.040 on August 31-September 1 (Table 3.1.8-8).
Density per 3 collection on August 31-September 1 ranged to 0.180/m
Density per 3 collection on August 31-September 1 ranged to 0.180/m
* Weakfish comprised  
* Weakfish comprised 3.7 percent of the total catch and was represented by 1,096 specimens including 1 egg, 660 and 435 young (Table 3.1.8-7).
 
===3.7 percent===
of the total catch and was represented by 1,096 specimens including 1 egg, 660 and 435 young (Table 3.1.8-7).
The annual mean density of eggs, and young was less than 0.001, 0.092, and 0.060/m, respectively.
The annual mean density of eggs, and young was less than 0.001, 0.092, and 0.060/m, respectively.
A single weakfish egg was collected on July 12 at water temperature 24.5 C and 3 salinity 7.0 ppt. Density in the collection was 0.020/m . The egg was not viable. Weakfish larvae ranked third in and comprised  
A single weakfish egg was collected on July 12 at water temperature 24.5 C and 3 salinity 7.0 ppt. Density in the collection was 0.020/m . The egg was not viable. Weakfish larvae ranked third in and comprised 6.3 percent of the total larval catch (Table 3.1.8-7).
 
===6.3 percent===
of the total larval catch (Table 3.1.8-7).
Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 4 3 0 to 10.0 ppt. Mean density per date from 0.006/m +/- 0.008 on August 31-September 1 to 0.613/m + 0.398 on June 28-29 (Table 3.1.8-8).
Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 4 3 0 to 10.0 ppt. Mean density per date from 0.006/m +/- 0.008 on August 31-September 1 to 0.613/m + 0.398 on June 28-29 (Table 3.1.8-8).
Density collection on June 28-29 ranged from 0.040 to Weakfish young ranked second in and 23.2 percent of the total young catch (Table 3.1.8-7).
Density collection on June 28-29 ranged from 0.040 to Weakfish young ranked second in and 23.2 percent of the total young catch (Table 3.1.8-7).
Line 5,159: Line 4,949:
* Silversides taken in entrainment samples at Salem Unit 1 are potentially Menbras martinica, Menidia beryllina, and Menidia menidia. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable.
* Silversides taken in entrainment samples at Salem Unit 1 are potentially Menbras martinica, Menidia beryllina, and Menidia menidia. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable.
However, young were identified to species and are discussed separately.
However, young were identified to species and are discussed separately.
Silversides comprised  
Silversides comprised 1.5 percent of the total catch and were represented by 454 specimens including 6 eggs and 448 larvae {Table 3.1.8-7).
 
===1.5 percent===
of the total catch and were represented by 454 specimens including 6 eggs and 448 larvae {Table 3.1.8-7).
The 3 annual mean density of eggs and larvae was 0.001 and 0.062/m , respectively
The 3 annual mean density of eggs and larvae was 0.001 and 0.062/m , respectively
* Silverside eggs ranked third in and comprised less than 0.1 percent of the total egg catch (Table 3.1.8-7).
* Silverside eggs ranked third in and comprised less than 0.1 percent of the total egg catch (Table 3.1.8-7).
Eggs were collected on July 12-13 and on July 27-28 at water temperature 24.5 to 26.6 C and sa1inity 7.0 to 10.0 ppt. Mean per date was 0.007/m +/- 0.008 on July 12-13 and 0.003/m + 0.005 on July 27-28 (Table 3.1.8-8).
Eggs were collected on July 12-13 and on July 27-28 at water temperature 24.5 to 26.6 C and sa1inity 7.0 to 10.0 ppt. Mean per date was 0.007/m +/- 0.008 on July 12-13 and 0.003/m + 0.005 on July 27-28 (Table 3.1.8-8).
Annual mean percent vTable was 83.3 (Table 3.1.8-9) . Silverside larvae ranked fourth in and comprised  
Annual mean percent vTable was 83.3 (Table 3.1.8-9) . Silverside larvae ranked fourth in and comprised 4.3 percent of the total larval catch (Table 3.1.8-7).
 
===4.3 percent===
of the total larval catch (Table 3.1.8-7).
Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 5.0 to 8.0 ppt. Mean density per da1e ranged from 0.033 on June 28-29 and July 12-13 to 0.470/rn on August 10-11 (Table 3.1.8-8).
Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 5.0 to 8.0 ppt. Mean density per da1e ranged from 0.033 on June 28-29 and July 12-13 to 0.470/rn on August 10-11 (Table 3.1.8-8).
Density 3 per collection on August 10-11 ranged from 0.060 to 4.260/m
Density 3 per collection on August 10-11 ranged from 0.060 to 4.260/m

Revision as of 16:50, 5 May 2019

Annual Environ Operating Rept (Nonradiological) 1978.
ML18078B176
Person / Time
Site: Salem PSEG icon.png
Issue date: 03/30/1979
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  • 0 The Energy People 1**** -.... I .i 1 Jl...NNUAL ENVIRONMENTAL OPERATING REPORT (NONRADIOLOGICAL)

SALEM NUCLEAR GENERATING STATION -UNIT NO. 1 January 1 through December 31, 1978 "i Docket No. 50-272

  • Operating Licertse No. DPR-70 -NOTICE -LW RECORDS FACILITY BRANCH I .J MARCH 30, 1979
  • 1978 ANNUAL ENVIRONMENTAL OPERATING REPORT * (NON-RADIOLOGICAL)

January l Through December 31, 1978 *

  • SALEM NUCLEAR GENERATING STATION UNIT NO. l
  • Docket No. 50-272 Operating License No. DPR-70 * *
  • Newark, New Jersey March 30, 1979 * *-** M P79 9 02/7 *
  • * * * * * .* * * * **
  • SECTION 1.0 1.1 l. 2 l. 3 2.0 2.1 2. l. l 2. l. 2 2. l. 3 2.2 2.2.1 2.2.2 2.2.3 2. 2. 4 2.2.5 3.0 3.1 3. l. l 3. l. 2 3. l. 3 3. l. 4 3.1-5 3.l.6a 3. l. 6b 3. l. 7 . 3.1.8 3.2 3.2.l 3.2.2 3.2.3 3.3 SALEM NUCLEAR GENERATING STATION ANNUAL ENVIRONMENTAL OPERATilJG REPORT (NON-RADIOLOGICAL)

TABLE OF CONTENTS TITLE GENERAL ....................................... Il1TRODUCTIO!J ......**.***........**..****.* s UMt-1ARY * * * * * * * * * * * * . * * * * * * * *** G * * * * * * * * * ** IONS **.......*....*.... G *********** ABIOTIC MONITORIUG AND SURVEILLANCE PROGRAMS. TEJYIPBRATURE

II ******** II II

  • 0 ...... Condenser Delta Temperature
  • ...**...*...

Maximum Discharge Temperature

  • ....*.....

Rate of Change of Discharge Temperature

  • CHEM I CAL *.*.** 0 **** " *************

e **** e "' ** 0 Chlorine ******011************"*********** Suspended Solids *.........**.....*...*.. pll G e G II e 0 G e e e G e 9 e G e e G G G G e e G G e e G e G e e G II G G e e Dissolved Oxygen .*...*.................. Other Chemicals ........................ . BIOTIC MONITORIIJG AND SURVEILLANCE PROGRAMS

  • AQUATIC ***** e ............................... . Phytoplankton

.........**.*.*...*.......* Ichthyoplankton ....*.***...*.***........ Zoo plank ton ....................... .... . Benthos ...*.*......*..*...*..****...*... Blue Crab .............................. G Juvenile and Adult Fishes -River ...... . Juvenile and Adult Fishes -Tidal Tributaries ......................... . Impingement of Organisms

          • ...*.*.****

Entrainment of Planktonic Organisms .*** TERRESTRIAL

            • ..*..*.**.*****.*..**.*...

Diamond!:Jack Terrapin Nesting Study .*..** Bird Population Studies *..***..*.*.**..* Bald Eagle and Osprey Monitoring Study *. REFERENCES

                  • ..*********************

II M P79 9 02/9 PAGE 1.1-1 1.1-1 1.2-1 1.3-1 2.1-1 2.1-1 2.1-2 2.1-2 2.1-2 2.2-1 2.2-1 2.2-6 2.2-11 2.2-12 2.2-14" 3.1--1 3.1-1 3.1-2 3.1-26* 3.1-71 3.1-116 3.1-160 3.1-204 3.1-222 3.1-334 3.1-369 3.2-1 3.2-1 3.2-15 3.2-24 3.3-1 ACKNOWLEDGEMENT This report was prepared by Public Service Electric and Gas Company, Newark, New Jersey. Data were collected at the Salem Nuclear Generating Station and in the Delaware Estuary by the staff of Salem Station, the PSE&G Research and ing Laboratory and Ichthyological Associates (IA) of town, Delaware. Data analysis and report preparation was performed by the PSE&G Licensing and Environment Department and the IA staff. M P79 9 02/8 * * * * * * * ** *

  • * * * * * . * * * * ** *

1.1 INTRODUCTION

SECTION 1.0 GENERAL This report is required by Section 5.6.1.1.1.a of the ronmental Technical Specifications (Appendix B) to Salem Nuclear Generating Station Operating License No. DRP-70. It includes the results of analyses carried out under the radiological environmental monitoring requirements described in the Environmental Technical Specifications (ETS). pendix B became effective on December 11, 1976 at 7:36 p.m. EST when Salem Nuclear Generating Station (SNGS), Unit 1, attained initial criticality

  • Information from December 11 through December 31, 1976 is reported for all required monitoring programs in the 1975 Annual Environmental Operating Report (Non-radiological), April 1977. Results of the first full year of Salem Unit 1 operation were reported in the 1977 Annual Environmental erating Report (Non-radiological), March 31, 19780 This third such report covers the same information for the period January 1, 1978 through December 31, 1978
  • M P79 9 03 01 1.1-1
1. 2

SUMMARY

Salem Unit 1 was operational during much of 1978 while Salem Unit 2 continued in the construction phase. Two (2) extended maintenance outages, one in the spring and one in the fall, did occur during the operation of Unit 1, and ditional relatively short maintenance periods occurred at other times throughout the year. Daily average reactor power levels achieved during the reporting period and responding condenser delta temperature information are given in Figures 2.1-1 through 2.1-3. The requirements for non-radiological environmental ing were divided into two general monitoring and lance programs: abiotic and biotic. The abiotic program covered field (estuary), and station monitoring efforts, cluding plant information and plant and field chemical surveys. Section 2.0 of this report discusses the abiotic program. Meteorological information for 1978 are presented in two (2) 1978 Semiannual Radioactive Effluent Release Reports (RERR-4 and RERR-5) for Salem Station. The biotic studies were divided into aquatic and terrestrial programs, and the results are presented in Section 3.0. In addition to the field studies, the aquatic effort included substantial monitoring of the intake and discharge for im-pingement and entrainment.

  • M. P79 9 03 02 1. 2-1 * * * * ., * * * * * *
  • * * * * * .* * * * ** *

1.3 CONCLUSION

S Heat dissipation through the condensers was generally lated to reactor power level. The circulating water system experienced intake screen failure and condenser tube ging at times, requiring operation with fewer than six pumps. However, no environmental impact from the operation of the circulating water system was detected in the Delaware River estuary. Plant chemical discharges were made in accordance with the Environmental Technical Specification provisions, and cal usage was compared with predicted waste discharge centrations. No unusual or significant water quality pacts or chemical concentrations were noted during the riod in which estuary water quality samples were taken. The general ecological survey was conducted in accordance with the provisions of ETS Section 3.1.2.1 to determine the effect of plant operation on the ecology of the Delaware River estuary. No significant changes in the ecology of the river in the vicinity of Salem Nuclear Generating Station were observed.

  • Aquatic and terrestrial species compositions, densities and abundances were within expected ranges when compared to operational monitoring data, except for the number of nile weakfish (Cynoscion regalis) within the estuary. Data collected during the summer indicated that the juvenile weakfish population was larger than had been previously observed.

Although relatively high impingement rates did occur, there was no indication that the operation of Salem Station had a significant impact on the 1978 year class of weakfish

  • DAB:gs M P79 9 03 03 1.3-1
  • * * * * * * * * * ** * ----------

SECTION 2.0 ABIOTIC MONITORING AND SURVEILLANCE PROGRAMS 2.1 TEMPERATURE (ETS Section 2.1) During 1978, Salem Unit 1 was in commercial operation as a baseload electric generating station, with duction varying from 0 to 1113 MWe. An extended outage for maintenance started in March and continued through mid-June. Another extended outage occurred in October and November for a period of four weeks. Several shorter ones occurred throughout the year. Average daily power level and average daily delta temperature are presented in Figures 2.1-1 through 2.1-3. These figures demonstrate the close correlation between power level and delta temperature

  • There are three parts to the condenser serving the Salem Unit 1 steam turbine, and each is divided into two separate halves. As required by the ETS, condenser temperatures were monitored at the inlet to each denser half or shell, for a total of six measurements.

Similarly, discharge temperatures were measured in each of the six discharge lines. The Salem condenser monitoring system utilizes probes called resistor temperature detectors (RTD). These RTD's are interfaced with the plant computer which records the condenser temperature readings on an hourly basis. The are processed to produce the delta T and maximum discharge temperature information required. by the ETS. When the computer monitoring system was out of service, the intake and discharge temperatures were monitored every two hours utilizing local instrumentation located on the condensers

  • The results of the temperature monitoring program are summarized in Table Presented are the average intake, discharge and delta temperatures for the Unit 1 condenser.

The coldest intake temperatures occurred in February [0.60C(33.10F)] while the highest occurred in July [34.2oc (930F)]. The lowest and highest discharge temperatures occurred in February and August tively [l.1oc (34oF)] and [42.aoc (109oF) J. The monthly average delta T was fairly consistent out the year. No data are reported for April and May because of the plant outage. M P79 9 01 2.1-1 2.1.1 Condenser Delta Temperature (ETS Section 2.1.1) Heat rejected through the condensers varied in response to plant operating conditions and power level. Problems were frequently encountered with the lating water system, the most common being failures of the vertical traveling intake screens. tive locations of the RTD's and plugging of condenser tubing also contributed to indications exceeding the 16.5°F delta T limit with 6 pumps in service at times. Such corrective actions as power reductions or water box cleaning, were generally employed to reduce the delta T. In addition, the RTD's were relocated during the March outage thus rectifying the problem of erroneous readings when the station resumed operation in June. As mentioned before, the main problems were with the circulating water vertical traveling screens. Because of a serious detritus loading problem, and also to maximize survival of fish impinged upon the screens, the circulating water traveling screens were operated This caused excessive wear of the screens and related hardware and resulted in frequent breakdowns. Since a circulating pump cannot be operated without its traveling screen, Salem Unit 1 operated much of the time with fewer than 6 pumps in service. 2.1.2 Maximum Discharge Temperature (ETS Section 2.1.2) The circulating water intake and discharge temperatures reached their maximums in August. The intake ture maximum was 3o.ooc (96o80F) while the maximum charge temperature was 42.7°c (109.00F). This occurred when fewer than six pumps were operating. ETS limits for maximum discharge temperatures were not exceeded in 1978. 2.1.3 Rate of Change of Discharge Temperature (ETS Section 2.1.3) Section 2.1.3 of the Salem ETS requires that "The rate of change of discharge temperature shall not exceed soF per hour during normal plant shutdown". In 1978 Salem Unit 1, during normal power level reductions did not exceed a rate of change of greater than 15% of full power in one hour. This rate of change is tially less than the 25% which would require additional monitoring. Correspondingly, the specified rate of change requirement was not exceeded and there was no necessity to increase the frequency of discharge temperature monitoring*. M P79 9 02 2.1-2 * * * * * *. * * * ** .I I

  • * * * * * * * * * **
  • Unplanned power reductions did occur because of the need to protect plant equipment or when, for certain reactor safeguard operations, the plant decreased reactor power level rapidly. No cold shock or other environmental impact attributable to shutdown was observed
  • M P79 9 03 2.1-3
  • TABLE 2.1-1
  • AVERAGE CONDENSER TEMPERATURES

-1978 Intake Temp. Discharge Temp. Delta T Date Average* oc (OF) Average* oc (OF) Average* oc (OF)

  • January 1.3 (34. 3) 8.9 (48.1) 7.7 (13. 7) February 0.6 (33.1) 7.9 ( 46. 2) 7.3 (13.2) March 1.8 (35. 2) 8.6 (47.5) 6.8 (12.5)
  • April** May** June 23.8 (74.8) 28.7 (83. 7) 4.9 ( 8. 9)
  • July 25.7 (78.3) 32.8 (91.0) 7.1 (12. 7) August 27.8 (82.0) 36.0 (96. 8) 8.2 (14.8) *. September
24. 5 (76.l) 32.8 (91.0) 8.3 (14.9) October 18.9 (66.0) 23.5 (74.3) 4.7 ( 8. 3) November 12.3 (54.1) 21.4 (70. 5) 9.1 (16.4) December 7.0 (44.6) 14.6 (58.3) 7.6 ( 13. 7) * *Average of Condenser Circuits 11, 12 and 13 **No power generated in April and May *
  • M P79 9 04 2.1-4 ** *
  • JANUARY FEBRUARY c = MEGAWATTS c = "-==DELTA T tF'1 * = wEL:"A ! IF'l * ; Ill * :K I !i1 (' : i {I §
  • Ii l .. --e "" !I ,c i:J§ !'j i:.i :a 51.::i § * * !I '.1 .. !! lo * ' I I I lO Ill 211 211 311 Q lO lO ilO 25 30 D.+.Y DAY
  • MARCH APRIL I ; § rt c -MEGnMATTS c = MEGF\WRTTS * = OEl.!A T Cfl * = DEi.TA ! (f'J Ill Ii. § La * !I 9 § § 9 !I § § .. --e "" . 13§
  • Si 1.3 :.:! ::a Q :I SQ 51 § § ! § * § * § t B !! !! 0 Ill ID ... 1!11 311 Ill .. "° "5 311 DAY DAY ** Daily Average Reactor Power Level PUBLIC SERVICE ELECTRIC AND GAS COMPANY And Co.ndenser Delta Temperature SALEM NUCLEAR GENERATING STATION F*igure 2.1'-l
  • 2.1-5 MAY § LmEtm c
  • MEGAWATTS I A* OE:L.TA T (F') § ; § I ' § § ii § § JJ) .. Ill 23 SD § § §* ' a1 ::I § § ii § !l DAY JULY .. DAY .. c = llE:Gf!Wf!TTS A= OE:L.Tf! T (Pl PUBLIC SERVICE ELECTRIC ANO GAS COMPANY SALEM NUCLEAR GENERATING STATION 3Q <t II II !I -s :: ....... e .. 51..: E SQ JUNE i c a ME:GAWATTS I .. =DEi.TA T CF"l § II ; !l § s I :: ....... !::. .. !I..: E SIQ § § § § § JJ) .. llll 1115 .. DAY AUGUST o
  • llE:GAWf!TTS

.. =DE:L A T CPJ \ ;: D JJ) l5 DAY .. .. 3Q Daily Average Reactor Power LeveI And Condenser Delta Temperature Figure 2.1-2 2.1-6 * * * * * * * * * * *

  • * * * * * * * **
  • SEPTEMBER " DAY NOVEMBER "' C=rEGA>IArTS A =DEL.TA r CF"I § 1'.1§ t ::a § ! i i !i IO 16 20 211 30 DAY PUBLIC SERVICE ELECTRIC AND GAS COMPANY sALEM NUCLEAR GENERATING STATION OCTOBER c =

A =OEL.!A T (Fl ...... ...... 20 ......... 211 ............ ..... [ DAY DECEMBER I !JX!END \ c = 111:GliWATTS I" A =DEL.TA r 1r1 I ii !ii (Jt !I § .s !f't 'g § . e ... ... !l,c !I-< raJ "' Q :r Q !I !I § * ! i !l .. UI .. 20 211 30 DAY Daily Average Reactor Power Level Anq. Condenser Delta Temperature Figure 2.l-3 2.l-7

  • ** * * * * * * * * **
  • 2.2 CHEMICAL 2.2.1 Chlorine 2.2.1.1 Sodium Hypochlorite System (ETS Section 2.2.1) The Salem Nuclear Generating Station uses sodium chlorite (NaOCl) solution for treatment of cooling circuits in order to maintain these circuits free from biofouling.

The sodium hypochlorite solution is injected at the intakes immediately behind the vertical traveling screens. The circulating and service water systems chlorination controls are programmed to chlorinate in sequence, not in parallel. The program calls for chlorination three times per day for 30 minutes each. The Salem Environmental Technical Specifications quire that "The concentration of free chlorine in the circulating water system and service water system shall not be greater than 1.0 mg/liter at the outlet of the final heat exchanger". The ETS require a chlorine residual .analyzer which is permanently located to optimize the monitoring of exchanger residuals

  • Several technical problems with the sodium hypochlorite system occurred in 1978 at the Salem Nuclear Generating Station. Consequently, chlorination took place on only 19 days in 1978. The chlorination system was operated manually from July 5 until August 14 (Table 2.2.1-1)
  • Due to failure of the automatic control system, the free chlorine residual was determined by manual metric titration of grab samples taken during the chlorination cycle. During the chlorination periods, these analyses of free chlorine residual indicated values between 0 and 0.4 mg/liter.

Consequently, because of the additional dilution from other condenser circuits, the tion at the discharge to the river was less than 0.1 mg/liter

  • M P79 9 05 2.2-1 The weekly river biocide surveys taken during periods of chlorination (described in Section 2.2.1.2) showed a total chlorine residual of 0.03 mg/liter or less on all occasions.

Also, the ecological monitoring program conducted in the vicinity of Artificial Island revealed no effect on the aquatic community from the sodium hypochlorite system.

  • A mass balance comparing the total quantity of chlorine injected to the volume of circulating and service water chlorinated in 1978 is summarized in Table 2.2.1-2. It demonstrates that the amount of chlorine injected and reduced by chlorine demand, would have resulted in a free chlorine residual at the discharge below table levels. This is consistent with the station's analyses of free chlorine residual.

Actually, the chlorine residuals discharged to the river are further reduced because the system contact time is significantly longer than the time (5 minutes) between intake and the point at which chlorine residual monitoring occurrs. M P79 9 06 2.2-2 * * * * * * * * * ** *

  • N N I w *
  • Water System Circulating Service M P79 9 07
  • Sodium In Service July 5 July 12 August 1 * * *
  • TABLE 2.2.1-1 SODIUM HYPOCHLORITE SYSTEM 1978 OPERATING

SUMMARY

Hy p o ch l o r 'i t e System Out of Service July 29 July 31 August 14 * * * *

  • Chlorination Days Cycles 8 i4 11 26 4 5
  • N N I TABLE 2.2.1-2 1978 -CHLORINE INJECTION SYSTEM Circulating and CHLORINE Service Water Volume Intake River (4) Chlorinated(l)

Injection Injected(2) Rate(3) Demand x 10*6 gal lbs. mg/liter mg/liter 506.2 8040 1. 90 1. 97 (1) Refer to Table 2.2.1-1 for operating summary. (2) Based on soundings of tank levels in July and August. (3) 1978 Average during periods of chlorination. (4) July and August river water summary data (Section 2.2.5.2) M P79 9 08 * * * * * * *

  • Free Residual Ambient River(4) in the Vicinity of the Dis-Calculated charge Discharge mg/liter mg/liter <0.03 0 * * * * *
  • * * * * * * * * **
  • 2.2.1.2 Chlorine -River Survey (ETS Section 3.1.1.1) As stated in Section 2.2.1.1, the and service water systems are periodically injected with sodium chlorite to reduce biofouling in the system. During each week of biocide injection, grab samples are taken in the river to measure the free and total residual chlorine.

The sampling locations are the same as the monthly river survey, being at the intake, discharge, and outside and downstream of the mixing zone (Figure 2.2.5-1). In accordance with ETS requirements the concentration in the sample taken outside and downstream of the mixing zone shall not exceed the ambient (intake) total residual level by more than 0.1 mg/liter. In 1978 the sampling program did not show detectable total residual chlorine increases at any location in the river during the chlorination periods. In all sampling locations the rivers total chlorine residual was le-ss than O. 03 mg/ liter. As discussed in Section 2.2.1.1, chlorination did not begin until July 5 and continued only until August 14. During this time the river samples showed no detectable total residual chlorine and no adverse biological impact was noted in the ecological studies (Section 3.1). The biocide samples for the first two weeks in August were inadvertently omitted but station recordi indicate that the concentration of free residual chlorine at the final heat exchanger did not exceed 1.0 mg/l

  • M P79 9 27 2.2-5 2.2.2 Suspended Solids 2.2.2.1 Suspended Solids Discharge From active Liquid Waste Basin (ETS Section 2.2.2) The original design of the non-radioactive liquid waste basin was based on processing approximately equal quantities of demineralizer regenerant wastes, steam generator blowdown and service water needed to quench the steam generator blowdown, permitting settling and pH neutralization before discharge to the river. In 1978, samples for suspended solids were taken from the basin discharge pipe on days when the basin was being discharged, and were analyzed using the tion/gravimetric method which is recognized by EPA. This was for year-end comparison with ETS Section 2.2.2 which states that "The average suspended solids tration in the effluent from the non-radioactive chemical liquid waste disposal system shall not exceed 25 mg/liter on an annual basis". The 1978 suspended solids concentration in the discharge from the radioactive waste basin was calculated to be 34.7 mg/liter.

This exceeds the ETS A licensee event report (LER 79-13/04L) reporting this was filed with the NRC. The prime contributor to the high total suspended solids (TSS) concentration was the blowdown quench water, which is service water derived directly from the river. The monthly average TSS of the river water during 1978 was 135 mg/liter (intake area). Since June 17, 1978, the station discontinued the tion of this quench water. By eliminating the quench water, the TSS concentration of the basin discharge decreased from 59.7 mg/liter in the first two quarters of 1978 to 9.6 mg/liter in the last two quarters (Table 2.2.2-1). f'.1. P79 9 09 2.2-6 * * * * * * * * * * ** ., i

  • * * * * * * * *
  • Another contributor to high TSS concentrations was the high number of demineralizer regenerations necessary to support water requirements of Unit 2 startup-related flushes. To reduce the number of regeneration cycles a well water pretreatment system will become operational in 1979. 2.2.2.2 River Survey (ETS Section 3.1.1.3) Suspended solids concentrations in the river were highly variable (Figure 2.2.2-1) throughout the year, ranging from 25 to 320 mg/liter and averaging 135 mg/ liter at the intake (Figure 2.2.5-1).

The ational data show a larger variation, 5 to 550 mg/l. The 1978 concentrations exceeded the preoperational monthly maximums on 2 occasions, both at the discharge, but the suspended solids concentrations released from the non-radioactive waste basin for the dates (May 23 and December 21) were 5.0 and 2.7 mg/liter. This indicates that the station would have no effect on river TSS concentrations. A paired T-test was formed on TSS data between the intake and discharge locations. No significant (p<.Ol) difference was detected for the 1998 data

  • such ambient conditions verify that no station-related impact resulted from TSS concentrations in the non-radioactive liquid waste basin discharge (See Table 2.2.2-2)
  • M P79 9 10 2.2-7 TABLE 2.2.2-1 SALEM NON-RADIOACTIVE LIQUID WASTE BASIN TOTAL SUSPENDED SOLIDS (TSS) DATA

SUMMARY

-1978 Quarter -1978 Jan-Mar Apr-Jun Jul-Sep Average 49.3 70.1 10.0 (mg/liter)

Average Before Quench Water Was Curtailed 59.7 (mg/liter) Average After Quench Oct-Dec 9. 2 Water Was Curtailed

9. 6 (mg/liter)

Annual Average 34.7 (mg/liter) M P79 9 11 2.2-8 * * * * * * . * * * ** *

  • * * * * * * * * *
  • Month January* February March April May June July August September October November December TABLE 2.2.2-2 SALEM MONTHLY RIVER WATER SURVEY TOTAL SUSPENDED SOLIDS (TSS) DATA -1978 Discharge Area mg/liter 144 62 43 245 227 170 26 111 64 62 184 Intake Area mg/liter 132 94 126 201 329 90 61 131 67 77 180 Outside and Downstream of the Mixing Zone mg/liter 87 62 62 189 271 89 22 76 75 49 132 Average 122 135 101 1978 Annual Average of TSS in the Delaware River = 119 mg/liter *Samples for the month of January 1978 were not obtained due to inclement weather, ice floes and low tidal conditions
  • M P79 9 12 2.2-9 TSS AT LOCATION 0 §.,_ ....................................................................................

__, v v c 0 ci+-...-........... --....................... .,._ ............................ _,..--i JRN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC TSS AT LOCATION 3 0 §.,_ ............................................................................ __, c g ) c j l i 1 d+-...,... ............................................................... --............ --i JAN f"EB MAR APR MAY JUN JUL AU3 SEP OCT NOV DEC PUBLIC SERVICE ELECTRIC AND GAS COMPANY .. SALEM NUCLEAR GENERATING STATION * \---rss AT LOCATION 2 c .............................................................................. _, * .. v v *

  • c ci+-_,..--.

............................................... .._ ...... '1--............ JAN f"EB MAR RPR MAY JUN JUL AUG SEP OCT NOV DEC

  • LEGEND PAEOPERATIONAL MAXIMUM
  • 1977 DATA PREOPERATIONAL AVERAGE 1978 DATA PREOPERATIONAL MINIMUM
  • LOCATION I
  • DISCHARGE LOCATION 2
  • INTAKE LOCATION
  • OUTSIOE AHO DOWNSTREAM OF TH£ MIXING ZONE *
  • Suspended Solids as TSS Figure 2.2.2-1
  • 2. 2--10
  • * * * * * * * * **
  • 2.2.3 pH 2.2.3.l Non-radioactive Liquid Waste Basin pH (ETS Section 2.2.3) The non-radioactive chemical liquid waste disposal system is required to treat non-radioactive liquid waste from steam generator blowdown and the make-up dernineralizer system to insure that "the pH of the non-radioactive chemical waste disposal system effluent shall be within the range of 6.0 to 9.0 pH units after mixing with the circulating water discharge stream." (ETS Section 2.2.3)
  • A pH controller regulates the pH of the effluent by feeding acid (H2S04) or caustic (NaOH) to the system. This assures that the waste leaving the basin is acceptable for. discharge
  • During 1978 the pH of the waste effluent was and discharged between 6.0 and 9.0 whenever discharges were made. The basin discharges into one of the lating water discharge pipes. The high circulating water flow compared to the small quantity of water charged from the waste basin makes it impossible to significantly alter the pH of the circulating water regardless of the pH of the waste basin effluent.

2.2.3.2 River pH (ETS Section 3.1.1.4) The ecological and water quality monitoring programs on the Delaware River near the station indicated no ence from the operation of the non-radioactive liquid chemical waste basin (refer to Section 2.2.5.2 for a complete discussion of acidity/alkalinity relationships)

  • M P79 9 14 2.2-11 2.2.4 Dissolved Oxygen 2.2.4.1 Station Conditions There was no effect by station operations on dissolved oxygen (D.O.) in the river. Hydrazine was used as an oxygen scavenger in the steam side of the Unit 1 denser system. Although minor leakage did occur in the condensers, this was in-leakage to the steam side venting any discharge of hydrazine (refer to Section 2.2.5.1 for additional discussion on the use of zine at the station).

2.2.4.2 River Survey (ETS Section 3.1.1.2) In 1978, dissolved oxygen concentrations were usually higher than the averages in the preoperational datai A definite seasonal trend is present with the lowest centrations occurring during the warmest months (Figure 2.2.4-1). The variation in D.O. among sampling tions (Figure 2.2.5-1) is very small and a T-test dicates that the station does not affect the tions significantly (p<.01). The June samples indicate a supersaturation at tions 1 & 2 which seems unlikely. A more plausible planation is that there were substances present in the water which caused an interference with the analytical method used, leading to the questionable results. M P79 9 17 2.2-12 * * * * * * * * ** *

  • DISSOLVED OXYGEN AT LOCATION 1 DISSOLVED OXYGEN AT LOCATION 2
  • 0 0 !ii !ii " 0 0 " I 0 0 le l!i l!i I 0:: 0:: c.Jo c.Jo .... ... . :::; :;! :::; :;! 0:: 0:: c.J "' O..o Q..g en ij "' a: 0:: "" :?a * ::l!i "' ;;; -0 " !!i !!i v v 0 " a * !! !! " 0 ,; ,;
  • 0 0 d ci JAN fEB MAR APR MAY JUN JUl. AUG SEP OCT NOV DEC JAN fEB MAR APR MA'!' JUN .JUl. AUG SEP OCT NOY DEC
  • DISSOLVED OXYGEN AT LOCATION 3 0 &i LEGENQ 0 P!IEOPl!MTIONAI.

ll&XllllUM

  • 0 ;i 1971 OATA " l!i Pllf:OP*t1AnONA1.

AVEll'AGE 0:: c.Jo .... :::; :;! 1978 OATA 0:: c.J 0..0

  • WlllMUlll 0:: ::Ji;i ;;; "

I

  • D1SCMAllG( !!i
  • 2
  • INT.utt: *a LOCAnQN ' . OUTSIDE MO OOWNSTllEAll O' THI: 2
  • WIXING ZOii! D ,; " ci JRN fEB MAR APR MAY JUN JUl. AUG SEP OCT NOV Of:C ** PUBLIC SERVICE ELECTRIC *AND GAS COMPANY Dissolved Oxygen as 02 SALEM NUCLEAR GENERATING STATION Figure 2.2.4-1
  • 2.2-13 2.2.5 Other Chemicals 2.2.5.1 Chemical Releases (ETS Section 3.1.1.5) An inventory of chemicals used during the reporting period was made and the quantities discharged daily of each of the chemical constituents in ETS Table 3.1.-3 were estimated.

Since the production wells were used to supply certain systems which ultimately discharged to the river, the well water chemical constituents were taken into account also in making the daily estimates of the other chemicals in Table 2.2.5-1. Well water consumption by Salem Unit 1 was 2.02 x 108 gals. in 1978. Based on NPDES permit monitoring reports, the Salem Nuclear Generating Station used 28.185 x 1010 gals. of water for cooling and service purposes in 1978 or an average of 7.72 x 108 gal/day. This volume was the basis of calculation used to determine the magnitude of the increases over natural river concentrations produced by the chemical releases shown in Table 2.2.5-1. t-1 P79 9 18 2.2-14 * * * * * * * * * *

  • N N I I-' lJ1 * * * * * * *
  • TABLE 2. -CHEMICAL RELEASE ESTIMATES

-1978 1978 1978 PREDIC'rED ESTIMATED ESTIMATED AVE.NATURAL AVE. NET PREDICTED AVE.NET AVE. NE'f CONC. IN AMOUNT AVE. NET ACTUALLY ACTUALLY CHEMICAL WATER* DISCHARGED INCREASE DISCHARGED INCREASE** CONSTITUENT (mg/liter) (lbs/day) (mg/liter) (lbs/day) (mg/liter) Chlorine as Cl2 0 870 <O.l 423 <O.l Calcium as Ca 100 135 s.1x10-3 198 3.oxio-2 Magnesium as Mg 240 56 2.lxlo-3 83 l.3x10-2 Sodium as Na 2000 600 2.2x10-2 2747 (1,2) 4.3xio-l Potassium as K 70 55 2.ox10-3 52 8.0xlo-3 Copper as Cu 0.082 0.1 (4) 5.6xio-3 Sulfate as S04 570 1590 5.8x10-2 6815 ( 1, 3) 1. 05 Chloride as Cl 3700 138 s.1x10-3 313 4.8x10-2 Nitrate as N03 5.6 2.4 9.oxio-5 35 ( 5) 5.4xio-3 Silica as Si02 46 1. 7xio-3 31 4.8xio-3 Phosphate as P04 0.66 11 4.lxlo-4 7 1. Oxl o-3 Volatile-Amines 4.2 l.Sxlo-3 4 6.2xio-4 Hydrazine 0 0.04 l.5x10-6 44 ( 6) 0 Suspended Solids 170 <1000 <0.04 117.5 l.8x10-2

  • From Final Environmental Statement, April 1973. ** After dilution with circulating and service water only; no mixing with river water assumed. M P79 9 19 * *
  • Notes (1) An unusually high number of demineralizer regenerations necessary to support the initial flushes required for Unit 2 startup combined with normal regenerations necessary for Unit 1 the resulted in a higher use of sodium hydroxide (NaOH) and sulfuric acid (H2S04) than anticipated.

(2) The total sodium discharged in the circulating water discharge produced an increase less than 0.5 mg/liter compared to 2000 mg/liter which is the natural concentration of sodium in water. Therefore, there was no environmental impact. (3) Sulfate produced an increase of only 1.0 mg/liter over a natural concentration in the Delaware River of 570 mg/liter. There was no environmental impact. (4) Attributable to average copper concentrations in the production wells. This represents a discharge concentration of 0.0056 mg/liter, much lower than 0.082 mg/liter, *which is the natural copper concentration in the river. It is concluded that the station did not significantly influence the ambient copper concentration in the river. (5) Chemical analysis of the production wells yielded a higher content of nitrate (N03) than pated. This resulted in higher discharges of concentrations of nitrate to the river than anticipated. The river water survey indicates similar values for the area surrounding the intake and discharge (See Section 2.2.5.2). No environmental impact is associated with nitrate values. (6) Hydrazine was used for oxygen scavenging for Unit 1 and in a test program for Unit 2. M P79 9 20 The hydrazine reacts with dissolved oxygen in the steam systems to form nitrogen and water. 44 lb/day of hydrazine were used at the Station. All the hydrazine reacts and decomposes in the system and very little or no hydrazine is discharged. 2.2-16 * * * ,. * * * * * * * **

  • * * * * * * * * * *
  • 2.2.5.2 River Water Quality (ETS Section 3.1.1.4) During 1978 PSE&G conducted a monthly ambient river water quality sampling and analysis program in accordance with Section 3.1.1 of the Environmental Technical Specifications.

No samples were obtained during January because of inclement weather and ice conditions on the river. Three locations, as given in Figure 2.2.5-1, were sampled once each month. Station 1 was located near the circulating water system discharge at a depth of 10 feet. Station 2 was next to the Circulating Water System intake at a depth of 8 feet, and Station 3 was outside and downstream of the mixing zone at a depth of 18 feet. The location of Station 3 varied depending on the tidal stage and direction of flow in the vicinity of Artificial Island. On incoming and high slack tides, the sampling point was adjacent to buoy N4R, approximately 2.5 miles north of the discharge. On outgoing and low slack tides, the sampling point was next to buoy RBL, about 2 miles south of the discharge. Preoperational data were available from tnree sampling locations: one near the present intake, one opposite the Station in the river channel, and one near Sunken Ship Cove (Figure 2.2.5-1). Depending on the ability of preoperational data, appropriate comparisons with operational data have been made. Since the start of the River Water Quality Monitoring Program many changes have occurred with a number of parameters added to the monthly surveys. Some of the parameters are useful indicators of the effect of Salem Station on river water quality while others are not directly related to power plant operation. The ing parameters have been shown to be not significantly affected by Station operation and will be recommended for deletion in a forthcoming ETS change request

  • M P79 9 21 2.2-17
1. Methyl Orange Alkalinity
2. Phenolphthalein Alkalinity
3. Free Carbon Dioxide 4. Total Volatile Solids -5. Silica 6. Total Organic Carbon 7. Reducing Substances
8. Sulfides 9. Zinc 10. Chromium 11. Manganese
12. Phenols It is recommended that reporting levels for the maining parameters be deferred for at least one more year while a broader post-operational data base is developed.

M P79 9 22 2.2-18 * * * * * * *. * * * ** *

  • * * * * *
  • I * * * * ( ) I I I I I I 1 I I I I I I . ,I I I I I I I I I I I I I I I 13 I 1 I I I I I I I I I I I I I I I I l I l 1 1 \ l l I I l I I l I I ' \ ' l I I l I l l 3 '\. -' ' ' ' ' ' ' ' ' ' ' ' ' ' NOTE: Underlined locations denote postoperational sampling stations.

Station 2 did not change. Postoperational station 3 varies according to tide. See text. ARTIFICIAL ISLAND CREEK GENERATING STATION *'>.SALEM NUCLEAR GENERATING 1 . 1 STATION 1., . I .... ______ _ -' ' ' ' ' '\ ' ' ' ' ' ' ', ' I I I I I I I SCALE ' ' ' ' ', ' 3 ' ' ' ' ' ' '\. . 0 I I IN MILES PUBLIC SERVICE ELECTRIC ANO GAS COMPANY Sampling Stations SALEM NUCLEAR GENERATING 'STATION Figure 2.2.5-l 2.2-19 I..' I SALINE/FRESH WATER RELATIONSHIPS The Delaware River near Artificial Island exhibits stantial tidal mixing. This leads to limited vertical stratification of salinity and a spectrum of salinity related chemical concentrations depending on season, fresh water flow, and tidal stage. A typically wide range of values for the following salinity-related chemical parameters was observed in 1978. Chloride concentrations, expressed as calcium ate, varied from 300 mg/liter to 9,000 mg/liter (Figure 2.2.5-2). The monthly preoperational maximums were exceeded only twice. The highest concentrations occurred during the fall when low rainfall led to reduced river flows, thereby causing the saline waters to penetrate further upstream. Concentrations for 1978 tended to be lower than the 1977 data. In most cases the intake and discharge concentrations were very close with neither location having a consistently higher concentration. Note -For chloride as NaCl, multiply values given by 1.1 7. Conductivity followed chloride in its seasonal pattern (Figure 2.2.5-3). Values for 1978 ranged from 500 umhos to 13,000 umhos. The highest values were during the low rainfall period in the summer and autumn months. Preoperational data was only exceeded once by a small amount. Intake and discharge values were very close for all of 1978, indicating no plant related effects. Sulfate values were between 10 and 1,000 mg/liter as CaC03 with the highest recordings in the autumn (Figure 2.2.5-4). Four of the 1978 values were greater than the preoperational maximums and three were less than the preoperational minimums. Discharge values were equal to the intake except for November and December when they were greater at the discharge, even though the November and December values were within the preoperational range. A T-test was performed between the intake and discharge to determine if there was any effect from station ation. No significant difference (p<.01) was detected for the 1978 data, despite the use of sulfuric acid (H2S04) in the Salem non-radioactive liquid waste basin. M P79 9 23 2.2-20 * * * * * * * * * * ** *

  • * * * * ** * * * * **
  • Calcium levels were low in 1978 (Figure 2.2.5-5).

The range was 30 to 350 mg/liter as CaC03 with the highest values occurring in the autumn. Compared to the preoperational range of 30 to 750 mg/liter it is not surprising that more than half of the 1978 data was below the preoperational average. In May all three locations were below the preoperational . The intake and discharge values were almost identical. Consequently, the Station's effect on the riverts calcium levels appears to be negligible. Magnesium values, measured as CaC03 ranged from 100 to 1,500 mg/liter (Figure 2.2.5-6). The variation is much less than 1977 which ranged from 20 to 2,045 mg/liter. No values were greater than the preoperational maximum values and 2 values were less than the preoperational minimums

  • Again the highest values were during the summer and autumn months. Station location 3 had the largest variation.

The intake and discharge values were lar for all months except April when the intake tration .was higher. Therefore, it seems that the Station has little or no effect on the river 1 s nesium levels. Sodium and Potassium concentrations as CaC03 were measured since October 1972 only at one station, near Sunken Ship Cove, during the preoperational program. During 1978 both of the parameters were measured at all three locations (Figures 2.2.5-7 and 2.2.5-8). Even with the limited preoperational data maximum sodium levels were only exceeded once and potassium twice. As with the previous chemicals the highest values were recorded during summer and autumn

  • A T-test was used to check the intake and discharge concentrations of sodium and no significant difference (p<.01) was noted despite the Station's use of sodium hydroxide (NaOH) and sodium hypochlorite (NaOCl)
  • M P79 9 24 2.2-21 CHLORIDE AT LOCATION 1 'b .. -.; *-.. .,; v v v 0 0 .. v 0 v
  • II 0:: :::i'" v 0:: "' "-o "" :c: a: c: .. ...l. __,. r .. ,, 0 ... 0 ci+-.....,.......,...,..........:;:..__, ..........................................

-.. .... JRN l'!:B l'fRR APR 11RY JUN JUL AUG SE:P OCT NOV OE:C rHLORIDE AT LOCATION 3 .2 0 .,; c v v 0 .; . . 0 v ..: v 0:: ..., ,_ '? -.. __, v v v 0:: "' "-0 "" :c: c:: 0:: "' r .. ,.; 0 .. 0 0 ci JAN fE:B l'!RR APR 11AY JUN JUL FtUG SE:P OCT NOV OE:C PUBLIC* SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING ST"ATl<m 2. 2-22 f:i 0 .,; 0 cl "-a "" "' -o __, . __,. r 0 ,.; 0 CHLORIDE AT LOCATION 2 v

  • v v V II
  • v c .;,-i-..............

-+. .............. ..... ....,. ............................ -.i JRN F"EB l'!RR APR MAY JUN JUL AUG SE:P OCT NOV OE:C LEGEND PREOPERATIONAL llAXIMUll 1977 DATA PAEOPERATIONAL AVERAGE 197B llATA PllEOPEHTIONAL llllllMUM LOCATION I

  • DISCHAllGE LOCATION 2
  • INTAKE LOCATION 3
  • OUTSIDE AND* OOWNSTAE""'

QI' THE llllXlllG ZONE Chloride As Caco 3 Figure 2.2.5-2 * * * * * * * * * * *

  • 07 LCCP!ICN * *
  • I a . ! I I 0 0 I I I I ! I
  • I I ' I i I I
  • I I s I 1 0 .;.._..__,.

...... .;......:;:.. ........... .;......,..__,.._ __________ JAN F::S 'IPR APR MAY JUN JUl. AUG SEP NOV CEC *** CONDUCTIVITY AT LOCATION. 3 * :4 0 * "' 7 a" I :c I r-I I

  • v t I f I ' l j 2 j 1 I I " 1 .,; I I I l i 0
  • 1 a .;
  • JA"I F!:B MFIR APR MAY JUN AUG SEP OCT NOV DEC *** PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR STATION *
ry FT
v I ! J 3\ i i I . i j i .I *o o..i......,..

...... .._..._.._ ...... .......................................... ....... JAN F'EB JUN JU\.. OC! DEC LEGEND PA!OP£RATIONAI.. MAXIMUM 1977 DATA AVERAGE 1978 DAU PM:OPERATIONAL MINIMUM LOCATION I* OISOIARGE LOCATION 2

  • INTAKE LOCATION 3
  • OUTSIDE ANO OOWMSTAEAll OF THE MIXING ZONE Conductivity As UMHOS Figure 2.2.5-3 2.2-23 SULPATE AT LOCATION l 0 0 c . .
  • I I i I A *
  • 1 I I t

____ __ .,_ ____ --1 JRN fEB 1'1AR llf'R 1'11iY JUN JUL 'lUG SEP OCT NOV DEC SULPATE AT LOCATION -3 0 v c ! JAN fEB MAR APR MAY JUN JUL AUG SE:P OCT NOV DEC PUBLIC SERVICE ELECTRIC ANO GAS COMPANY

  • SALEM NUCLEAR GENERATING STATION -* SULF9TE AT LOC9T!ON 2 * * *
  • JAN l="E9 ""IR:R APR M9Y JUN JUL '1UG SEP OC: !\JOV DEC
  • LEGEND PREOPERATIONAL MAXIMUM 1977 DATA
  • PREOPEAATIONA!.

AVERAGE 19711 DATA PREOPEltATIOfCAL MHMMU ..

  • LOCATION I
  • DISCHARGE LOCATION 2
  • INTAKE LOCATION 3 : OUTSIDE AHO OO'lnfSTREAU OF THE MIXING ZONE *
  • Sulfate As CaC03 Figure 2.2.5-4 2. 2-24 *
  • * * * * * * * * * **
  • CALCIUM AT LOC9T!ON 0
  • i I
  • I l : 0 JAN FEB MAR APR MAY JUN JUL AUG SE? ocr NOV DEC CAi...C IUM AT LOCATION" 3 Q " 0 v g I ; "' "'" 5§ "' a: ; "' i -'8 I I -'* i: 0 0 ! " T * *
  • Cl I " I t
  • i + l Cl 0 l .. i .. A 1 Cl *
  • A I A
  • 0 Cl c JAN FEE MAR APR MAY JUN JUL AUG SEP OCT NOV DEC . PUBLIC SERVICE ELECTRIC ANO GAS COMPANY SALEM NUCLEAR GENERATING STATION f ! l I I .. CALCIUM AT 2 T 0 I T I I I I l + + a l I !
  • JAN n:s MAR APR NflY JUN JUL AUG SE? OCT NOV DEC LEGEND PREOPER.&TION.U..

MA*lllUll 1977 OAT.& PREOPER.&TIONAI. AVERAGE 1979 DATA lllNlllUlf I

  • OISCIWIGE Z
  • INT&llE LOC.&TIOll 3
  • OUTSID£ ANO OOWNST-Of' TH_E lllXING ZONE Calcium As CaC03 Figure 2 .* 2. 5-5 2. 2-2 5

AT LOCATION " C> C> " 8 ;; T

  • I ::; 1 I <r * """ j .... . en§ *
  • i§-l * "' .. I coo
  • I I I r. I " I I I I '? C> I I I I I § I l I I ! I I I 0 4 l r
  • I l I I A
  • I I l l * : "' A !. A ci JAN F"E:B MAR APR MAY JUN JUL AUG SE:P OCT "lOV DEC AT LOCATION 3 JAN rEB APR MAY JUN JUL AUG SEP OCT NOV DEC
  • PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION * .'1AGNES I UM AT LO CAT I ON 2 a
  • C> " i
  • EiC> T !::: T -' -v "' * """ ..... en§ :c:-* a: T "' I "'°' :3 .. T --I :c:
  • 0 0 I § I f C> I *' I i. .* ,, C> ci JAN rEB M!IR APR MAY JUN JUL AUG SEP OCT NOV DC:C
  • LEGEND PAEOPERATIONAL MAXIMUM
  • 19TT DATA AVERAGE 1978 DATA
  • LOCATIOll I
  • OISOWIGE LCCATION 2
  • INTAK£ LOCATIOI; 3
  • OUTSIDE ANO

.... OI' THE .,,.ING ZCUE *

  • Magnesium As CaC03 Figure 2.2.5-b 2.2-26 *
  • * * * * .* * * * *
  • 0 ,; 0 ..: 0 ..; 0 SODIUM AT LOCATION
  • c ,;+-...,..._

...... ,...... ................ -.. ...... JAN FEB MAR APP. llAY JUN JUI. AUG Sef' OCT NOV OC:C SODIUM AT LOCATION 3. F\JBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING--STATION

2. 2-27 SODIUM AT LOCATION 2 0 I ,I I I I Q ci-!-....... -...--. ...............

_,......., ............................. --.--1 JAN F'Ell MAR APR MAY JUN JUL. RUG SEP OCT NOV OC:C LEGEND PREOPER& TIONAI.. W4XIMUll 197T OATA PllEOPERATIONAI. 19711 OAT& PAEQPl!lt&TION&l. lllNIWUll LOCATION I

  • OISCH&RGE UXATION 2
  • INTAllE MIXING ZONE Sodium As Caco 3 Figure 2.2.5-7 POTASSIUM AT LOCATION l 0 *O 0 .. "' :.Jo "' 0: "' "'" :i ;:; " " § Cl 0 g 0 0 JAN F"EB MAR MAY JUN JUL. AUG SEP OCi NOV DE:C POTASSIUM AT LOCATION 3 " Iii 0

__ _,, __ ,.......,..._,.. ...... --...-------.--..--1 JAN !'EB MAR APR JUN AUG SEP OCT NOV DEC PUBLIC SERVICE EiLECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION

  • POTASSIUM AT LOCATION 2
  • i " * -Ii _, _ en B "' .. :!Iii : * " * ,; JAN !'EB l'1llR APR l'IA! JUN .JUl. AUG SE!' OCT NOV DEC
  • LEGEND PllEOPERATIONAL.

MAXIMUM ** 19TT OATA P!IEOPERATIONAL AVERAGE 1978 DATA PREOPERATIONAL MINIMUM

  • LOCATION I
  • DISCIWlqE 1.0CATION 2 : INTAKE LOCATION 3
  • QUTSlll[ AND !lOWNSTREAOI OF THE MIXING ZONE *
  • Potassium As CaC03 Figure 2.2.5-8 2.2-28 *
  • * * * * * .* * * * **
  • RIVER ACIDITY/ALKALINITY RELATIONSHIPS The Delaware River in the vicinity of Artificial Island is well buffered as a result of the influence of water in the estuary. The pH as a result has always been between 6.0 and 9.0 for all of the monitoring years. The acidity/alkalinity relationships are cussed below. pH varied from 6.2 to 9.0 in 1978 (Figure 2.2.5-9).

The preoperational maximums and minimums were exceeded 8 times. This large variation does not seem to be linked to station operation because the intake and charge value varied together. The high June value appears to be linked with the high dissolved oxygen values recorded for the same date. Possibly, a large amount of caustic material was present in the river in the vicinity of Artificial Island and led to high pH values and erroneous solved oxygen values. Methyl Orange Alkalinity for 1978 followed the ational seasonal trend (Figure 2.2.5-10). The highest values were during summer and autumn seasons. Six times the maximum values were exceeded but little difference was apparent between the intake and charge. The June sample showed a higher value than the preoperational maximum at the intake but not at the discharge. This indicates that the June sample also was affected by the caustic in the water

  • Phenolphthalein Alkalinity has been zero in all samples at Salem under this program and continued to be zero throughout 1978. This is reasonable since the pH has always bracketed the neutral range
  • Free Carbon Dioxide for 1978 was consistently lower than the preoperational averages at all three tions (Figure 2.2.5-ll)o The preoperational range was 0.3 to 24.0 mg/liter while the 1978 data ranged from 0.0 to 3.5 mg/liter.

The 1977 data also showed a duced range. Since all three locations for 1977 and 1978 have shown low carbon dioxide levels, it is cluded that the station has not affected free carbon dioxide levels. M P79 9 25 2.2-29 pH AT LOCATION 1 0 ".! 0 2 0 c ,; l :r "! f i B . 0 c .. 0 0 ci..._.....,.......,,......,.......,. ...... ,.......,.......,......,,.........,.....,.....,.,.........,-l JA>I f"EB PIAR M_,Y JUN AUG SE:P OCT NOV CEC pH AT* LDCAT!Ot\J 3* 0 ::i* 0 2 0 ,; . T g a.r-:

  • I B 0 .; . 0 ,.; 0 ..............................................................................................

..,... ....... JRN ..,C!'f JUN JUL. AUG SE:P CCT "lO'I o::c PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION 2.2-30

  • pH AT LDCATIOt\J 2 0
  • 0 2
  • 0 ,; 0-r i c v T l . ' a_,.: I I 9 !i I ! 4 1 f & r !
  • 0 .. * .: 0 ,.; 0 ri ...... .._. ............................................................................................ *
  • LEGEND PAEOPERATIONAI...

WA1UUUM 1977 DATA * *PREOPffiATIONAL AVERA'iE 1976 DATA PREOPERATIONAL MINIMUM

  • COCATION I
  • DISCHARGE 2 :a INTAKE LOCATION 3 r OUTSIDE. ANO DOWNSTREAM.

OF THE MIXING ZOPllE *

  • pH As pH Figure 2.2.5-9 *
  • * * * * * * * * * * * :1 0 ALKALINITY AT LOCATION 1 0 0 0 0:: .... !:: i;j _,_ * "" I cc 0:: ;: .. I :Iii I i: *. " 9 " ..
  • i 9 I I I I I t .1 * .. ii .. .; JRN fEB l'lflR APR MAY JUN JUI. AUG SEl' OCT NOV DEC M 0 ALKALINITY AT LOCATION 3 .. 0 0 0 "' t.Jo !::i;j ...J-0::

.,,8 :c -a: 0:: :? 0 :c * *a 0 ii 0 i 0 i;j 0 ................. ................ ....................... JAN F"EB Mf\R RPR MflY JUN JUL. AUG SEP OCT NOV OEC PUBLIC SERVICE ELECTRIC AND GAS *COMPANY SALEM NUCLEAR GENERATING STATION M 0 ALKALINITY AT L.OCATION 2 0 0 0 0' 0:: ... .. !::i;j _, _ .. 0:: "'8 a! -* a:: :? .. I :Iii l i: f ! f I .. . ii I * " i I i I " ! 'ii I 4 .. 4 i;j 0 d Jl9N F"EB l'll9R APR l'IRY JUN JUI. AUG SEP OCT NOV DEC LEGEND PllECPl!RATIONAI. >WllllUlll 1977 DATA PllEOP!llATION&I. AVEllAGE 1979 DATA Pl!EOPEAATTOIUI. IJllllllJIUlll LOCATION I* OISCllARGE LOCATION z

  • INTAllE Loc.&TION 3
  • OUTSICE IND DCIWllSTTIE&lil OI' THE ' llllXING ZONE Methyl Orange Alkalinity As Caco 3 Figure 2.2.5-10 2. 2-31 c .. " .. " .. a CARBON DIOXIDE AT LOCATION .........

____ ....;.. ____________ ,,,_ ______ _, JAN F't!! p,flR R?R MRr JUN JUL RUG SEf' OCT NOV OE:C CARBON Ai LOCATION 3 " ;; i I I I I I I I I I I . r I dui; l l +/-. ! - .. r r-!' . I

  • i e I ii * * = '* c T I I I * .. N ..; ' i ' " .,; .. .. FJS:..IC SERVICE: El...ECTRIC AND GAS SALEM NUCLEAR GENERATING 2.2-32
  • CARBON DIOXIDE AT LOCATION 2 * " a ;; fi., .... * -* _,-!5 o..c U1 e .. _, .. _,_ = " T ,,; l I " I I .. I j r " l l y !
  • l Ill
  • l l I ! * * " , .. .'AN F"E9 11flR APR 11RY JUN .Jtr.. RUG S!:P Ot:i NOV * *
  • LEGEND l I 1977 DATA 19'1'!) DITA *
  • I
  • OISCMAJtGE LDCATIOM Z
  • IN'T&Kt LDCATION 3 *
  • OUTSIDE MCI -OI' THE llllll'IG ZONE *
  • 2arbon Jioxide As

_, Figure 2.2.5-ll *

  • * * * * .* * * * **
  • SOLIDS RELATIONSHIPS This section describes the behavior of parameters lated to suspended matter in the water. Total pended solids were discussed earlier in Section 2.2.2.2 and should be referred to when examining this section
  • Turbidity is measured at Salem as nephelometric ity units (NTU) which "are considered comparable to the previously reported *** Jackson turbidity units (JTU)" (USEPA, Methods for Chemical Analysis of Water and Wastes, 1974), since the traditional Jackson Candle turbidimeter is difficult to use at low turbidity levels. The highest turbidity ranges were observed at the charge area for preoperational data, 10 to 480 NTU (Figure 2.2.5-12).

The 1978 data for all three tions varied from 1 to 130 NTU. Twice the 1978 data exceeded the preoperational maximums but seven times new minimum values were established. Turbidity, as expected, is highly dependent on the total suspended solids load so like total suspended solids most of the 1978 data was below the preoperational average. Total Volatile Solids were taken regularly in 1977 and 1978 but only one year of preoperational data is able. The range of the preoperational data was from 50 to 1,700 mg/liter (Figure 2.2.5-13). Using this range as a comparison to the 1978 data, only twice was the maximum range exceeded, both occurred in September when the values were high for all 3 locations. The highest value was at location 3 (outside and downstream of the mixing zone), not location 1 (discharge), so apparently the Station had no discernible affect on total volatile solids

  • Silica values ranged from 0.15 to 7.1 mg/liter (Figure 2.2.5-14).

As with total volatile solids there was only one year of preoperational data. Using the range of values over that entire year to compare the 1978. data, no 1978 data exceed the preoperational maximum

  • The intake and discharge values were similar in all months except May when the intake concentration was much higher than the discharge concentration.

It, therefore, is likely that the station had no cant effect on the silica concentrations in the river. M P79 9 26 2.2-33 TURBIDITY AT LOCATION 0 ' i l 1 . l : I T i ! f ! : ci.-.................. --...---------- JAN F"E9 MflY JtJN JUL AUG SE: 0 OCT NOV DEC° TURBfDfTY LOCAT!ON.3 0 .................................................................................... l I I 1 1 I ! I r ? 1/t\r ; I i ! r I I z*AT I 1 J'=IP>,1 '"lRR JU .... CCT NOV c::: PUBLIC SERVICE ELECTRIC ANO GAS COMPANY SALEM NUCLEAR GENERATING STATION TURBIDITY AT LOCATION 2 0 0 § 0 g 0 g 0 d..__....,.._,._,,__ ______ ._,.. ____ JAN F'E:S flF'R JUN AUG St:P OC! NOV Ot:C LEGEND I 'REOPERATIONAL MAXIMUM 1977 DATA I PREOPERATIONAL AVERAGE 1970 DATA PREOPERATIONAL WllllMUM LOCATION I

  • DISCKMGE LOCATION 2
  • INTAKE LOCATION 3 OUTSIDE ANO DOWNSTREAM OF THE MIXING ZONE Turbidity As NTU Figure 2.2.5-12 2.2-34 * * * * * * * * * * *
  • * * * !. i * * * *
  • TOTAL VOL SOLIDS AT LOCATION 0 a 0 " JAN FEB MAR APR MAY JUN JUl. AUG SEP OCT NOV oe:c TOTAL VOL SOLIDS AT LOCA'fION 3 i " i " " ei 0 "' u., "". a: "" "'" = 0 0 0 c c i 0 " " " § " " 0 0 JRH fE:B MAR APR MAY JUN JUI. AUG Se:P OCT NOV OEC PUBLIC* SERVICE ANO GAS CC!MPANY SAUM NUCLEAR GENERATING STATION TOTAL VOL SOLIDS AT LOCATION 2 " 8 ;;; a *. 0 a c . j\ : r ; ,*o /Vi. d-!-...,__,.

.... ,...,.. __ ...,.._,.__,.._ ____ JAN FEB MAR APR MAY JUN JUl. AUG SEP OCT NOV oe:c LEGEND v Pll!OHllATIONAL llAXlllUlll 1977 DATA P1'!0P!RATIONAL AVERAGE 1978 C,.TA Pll£0P£RATIOIUL llllllllllUll LOCATION I

  • OISCHAllG£ l.llCATION z
  • lllTllC£ LCCATIOll
3. OUTSIDE IHll OCWMS1'11Uolll OF THE. lllllllllG ZONE Total.Volatile Solids As TVS Figure 2.2.5-13 2.2-35 3; LI CA AT LOCATION 1 " !! " .; " .; " a: -.. ...J a: w c ::..., """ :c: a: a: "' 0 * * -= ...J. _,. :c: " ,.; c " .; c 0 " o a c " =-l--... ...... --..........

--.............. __ ..... ..,.._,, ........ -s--1 JAN F"EB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC SILICA AT LOCATION 3 " 2 " "' " .; " "' t: ...J

  • a: I w a..., .... :c: c:: "' "' _., ...J. c =* :c: " ,.; 0 " .; c JAN F"ES MAR AFR MAY JUN JUL AUG SEP OCT NOV DEC PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM. NUCLEAR GENERATING STATION 2. 2-36
  • SILICA AT LOCATION 2 " 2 * " .. " ,; " c a: 0 -.. ....
  • a: .., o. ... ., .... :c: a: c:: :: " ...J * ..... i: " ,.;
  • c " .; c c " ci+-------

.......... --............. --.......... JAN rEB MAR APR MAY JUN .IUl.. AUG SEP OCT NOV OE:C *

  • LEGEND PllEOPERATION&L.

MAXlllllJll 1977 DATA * *

  • PllEOPERATIOllAL AVERAGE 1978 DATA l . PllEOPUATIONAI.

lllNlllUll

  • LOCATICN I
  • DtSCIWIGE LOCATION 2
  • INTAKE L.OC&TION 3
  • OUTSIDE AND DOWNSTllEAll OF THE MIXING ZONE *
  • Silica As Sio 2 Figure 2.2.5-14 *
  • * * * * * .* * * * *
  • OXYGEN/ORGANIC RELATIONSHIPS The dissolved oxygen levels were discussed in Section 2.2.4 and should be referred to before proceeding in this section. Biochemical Oxygen Demand (BOD) data were recorded prior to 1977 only at a sampling station near Sunken Ship Cove. In 1978 BOD measured at all three locations (Figure 2.2.5-15).

Location 1 shows that the 1978 data was below the 1977 data and was below the preoperational average for all months except May. A comparison of all three locations shows that no one location is consistently greater than the others. The levels encountered are low and are reasonable for unpolluted water such as the lower reach of the Delaware River. Chemical Oxygen Demand (COD) for preoperational data ranged from 0 to 650 mg/liter (Figure 2.2.5-16). The 1978 data ranged from 10 to 250 mg/liter and only exceeded a ational monthly maximum once. The discharge values were not consistently greater than the intake values so it can be concluded that the station .had no detrimental effect on COD It should be noted that in saline waters with chloride (Cl) concentrations 1000 mg/liter (1410 mg/liter as CaC03) any COD values below 250 mg/liter are highly questionable because of the high chloride interference. Since most of the 1978 and preoperational data fall into this range, COD data have little meaning

  • Total Organic Carbon (TOC) in 1978 was always below the operational maximums.

There was no discernable difference between the three sampling locations (Figure 2.2.5-17). Since the Station discharges very little organic matter, it is expected that the Station would have no impact on the TOC levels. Reducing Substances as H2S was measured to assess the dation-reduction potential of the Delaware River water near Salem. The preoperational monthly maximums were only ceeded once by the 1978 data. This occurred at the intake (Figure 2.2.5-18)

  • M P79 9 02/1 2.2-37

"' ?:! .. ti "' .. a:: ..., ...... -.,; ..... a:: ..., .....

i:: a:: er .. ...... -' .. ;:: "' " "' " . ci " .. BOD AT LOCATION 1 0 c c c c c JAN F"E:B MFIR RPR MAY JUN JUL. RUG SE:P OCT NOV oe:c BOD AT LOCATION 3 JAN F'EB MFIR flf'R MAY JUN JUI. AUG SE:!' OCT NOV Otc PUBLIC . SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION
  • BOD AT LOCATION 2 * .. .; .. ..
  • a:: ..., ... :; !S .. ... .. "' 2 "" <> ::; ..... * -.. :c .. ::J .. * .. .JRN F'EB MAR flf'R MRY JUN JUL. AUG SE:!' OCT NOV DEC
  • LEGEND MAXIMUM 1977 Doi.Tl. * .PA!OPERATIDNAL AVERAGE 1978 DATA PllEOPERATIDNAL.

MIMlllUM

  • LOCATION I *. DISCllAllGE LOCATION 2
  • iNTAXE LQC.ITION
  • OUTSIDE AND DOWNSTREAM OF THE MIXING ZONE *
  • Biological Oxygen Demand As BOD Figure 2.2.5-15 2. 2-38 *
  • ** * * * .* * * * ** * !' 0 0 AT LOCATION L 0 0 § i 0 0:: Wo 51.i 0:: c:: <>: C:Oo 38 =* :c " " ij
  • f" + l ! " r 1 a 1 I 0 JFIN n:a MAR APR MAY JUN JUL AUG SE:? OCT NOV OE:C C 0 0 AT LOCATION 3 "

0 JAN rE:B MAR APR MAY JUN JUL AUG SE'.P OCT NOV OE:C P.UBUC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION 0 0 AT LOCATION 2 0 0 0 0 "" Wo 51.i 0:: 0:: :: :c: " I I I I I r I 0 I I I l " § l 0 0 cAN PEa MAR APR MAY JUN JUL AUG SE? OCT NOV CEC LEGEND PREOP£RATIOM&I. MAXIMUM 1977 OAT.ti PFlf:OP£11ATIOIW. AVERAGE 1978 DATA PllEOPl!llATION&I. MINIMUM t.QCATU)ll I

  • OISOWIGE LOCATION 2
  • INTIU<E LOCATION 3
  • OUTSIDE AMO OOWNSTllEAM OF TME MIXING ZONE Chemical Oxygen Demand As COD Figure 2.2.5-16 2.2-39 r T 0 c AT LOCATION 1 " " " " 0:: '"'" 0:: !2 cc "' :l r " " § " iii " .; JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC T*O CAT LOCATION 3 " " § PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION 2. 2-4o
  • T 0 C AT LOCATION 2 " §
  • i " " "' * '"'" "'

a: 0:: "'" I :r * .. " § .. 5i " I . * .; .JAN FEB MAR APR MAY .JUN .JUL AUG SEP CCT NOV DEC

  • LEGEND PREOP£RATJONAL UAXIUUM 1977 DATA *
  • PREOPERATIO""'L . AVERAGE 0 1978 DATA 1 PREOPEllATIOHAL MfNIMUlll
  • LOCATION I
  • DISCIWIGE LOCATION 2 3 INTAKE LOCATION 3
  • OUTSIDE AND OOWNSTllEAll OF THE lamNG ZONE *
  • Total Organic Carbon As TOC Figure 2.2.5...;17
  • * * * * * .* * * * **
  • SUBST AT LOCATION _;,...-----------------.

c N c r l ci+------...- ...... --.--...-------1 ..JAN FEB 'IAR iiPR MAY ..JUN JUL RUG SEP OCT NOV CEC SUBST AT 3 c 0:: ..., "'"' :i::: a: "' "' -c ...J. :c c ci+-...,......,.. ............. __ ..,......,... ___ ,_,..,.......,......,.......,---1 JAN FEB MAR APR MAY JUN JUL RUG SEP OCT NOV DEC PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION ... 2.2-41 A7 LCCAT:ON 2 _;.,...------------------. ,.; c 0 c-1-....------------------ JAN f"EB APR JUN JUL AUG SEP CCT NOV CEC LEGEND PREOPERATIONAI.. llAXIMUM 1977 CATA PAEOPERATIONAI. AVERAGE

  • 1979 DATA PREOf'ERATIONAI.

lllNIMUM LOCATION I

  • DISCHARGE LOCATION 2 :r. INTAKE LOCATION 3 , OUTSIOE AND OOWNSTREAM OF THE MIXING ZONE Reducing Substances As H 2 S Figure 2.2.5-1()

The intake values were usually equal to or slightly less than the discharge. This is to be expected since the station does not release any chemicals which would lead to significant reducing substances levels. Sulfides are an indicator of a highly polluted or anerobic environment. The Delaware River in the Station area has been shown to be well oxygenated, high in dissolved oxygen usually near saturation, and not highly polluted, with low BOD and COD levels. The preoperational data ranged from O to 0.1 mg/liter (Figure 2.2.5-19). The minimum accurately detectable level is 0.05 mg/liter. The 1978 data frequently exceeded the preoperational maximums but these values are very close to the minimum detectable levels. Only during June 1978 did a significantly higher value occur and this seems to be related to the interference found *in many meters for the June sample (see dissolved oxygen and pH). The station therefore does not appear to be affecting the sulfide levels in the river. NITROGEN/PHOSPHORUS RELATIONSHIPS The nitrogen and phosphorus relationships may be strongly influenced by runoff, agricultural practices, and domestic sewage disposal. By comparison, the operation of Salem Station will normally have an insignificant effect on the Nitrogen/Phosphorus relationship in the Delaware River. Ammonia as NH3 was very low in 1978. The preoperational range was from 0.0 to 3.8 mg/liter while the 1978 data only ranged from 0.01 to 0.7 mg/liter (Figure 2.2.5-20). The preoperational data has a late winter/early spring peak while the minimum concentrations are found during the summer/autumn period. Preoperational maximums were exceeded twice, both times at the intake, and new minimums were established six times. The intake and discharge concentrations were similar with neither locations being predominantly greater. Therefore, the Station does not appear to affect the ammonia levels in the rivero M P79 9 02/2 2.2-42 * * * * * *. * * * ** *

  • SULFIDES AT LOCATION 1 SULFIDES AT LOCATION 2 * :;! c c c 0 c
  • c c a:

3ci a: u O. IQ "' * :::!" :c "' c c " c c a c

  • 0 I' ' T 8 .. ...... ._. .........................................................................

-JAN F1ll MRR APR MAY JUN J\.JL AUG St:? OCT Nfrl OE:C .* SULFIDES AT LOCATION 3 LEGE NO c

  • PREOP!RATIONAI.

lfAXIMUll 1971 OAT& PllEOPElt&TIONAI. AVERAGE 1979 DATA

  • Pft[QP£11&T10NAI.

YIMllUll LOCATION I

  • OISCIWIGI LOCATION 2
  • INTAKE LOCATION 3 ' OUTSIDE ANO DOWNSTll[Alt THE
  • a lllXING ZONE a a JAN F"E:B MAR APR MAY JUN JUL AUG SE:? OCT NOV OE:C ** PUBLIC SERVICE ELECTRIC AND GAS COMPANY Sulf'ides As s SALEM NUCLEAR GENERATING STATION . Figure 2.2.5-19
  • 2.2-43 0 . 0 AMMONIA AT LOCATION c c d ............................................................................

__ _.. c ..; c N JAN fE:B MAR APR MAY JUN JuL AUG SE:P OCT NOV OEC AMMONIA AT LOCATION 3 r l l a \f\! Ii 11 : e \I I l . l -Vi 0 rtl\Vn ! o+-,..... ...... ,..... ..... ....,. ........... ..... ._....__.,-....;.........,.-.l JAN FEB MflR APR M!'lr JUN JUL AUG SEP OCT NOV DE:C PUBLIC SERVICE ELECTRIC ANO GAS *COMPANY. sALEM NUCLEAR GENERATING STATION 2.2-44

  • AMMONIA AT LOCATION 2 * * *
  • JAN FE:B MAR APR MAY JUN JUL AUG SE? OCT NOV OE:C
  • LEGEND I PllEOl'ER&TIONAL MAXIMUM 1977 DAT.II. PREOPERA TION.11.L AVERAGE l97! DATA I PllEOPEllATIOllAL lllNUIUM *
  • LOC4TION I* DISCHARGE LOCATION 2
  • INTAKE LOCATIO"I 3 ' OUTSIDE AND OF THE MIXING ZONE *
  • Ammonia As NH 3 Figure 2.2.5-20 *
  • * * * * * * * * * *
  • Nitrate measured as N03 for 1978 was always lower than the preoperational average (Figure 2.2.5-21).

The ational values ranged from 0.05 to 22.0 mg/liter, while the 1978 data ranged from 1.0 to 7.0 mg/liter. Nine times the 1978 data was below the preoperational minimums. The intake and discharge values were similar and indicate that the Station did not the N03 content of the river in any appreciable manner. Kjeldahl Nitrogen is a measure of free ammonia and most organic nitrogen compounds. The preoperational data is limited to a location near Sunken Ship Cove. The high operational data during June seems exceptional and should be ignored (Figure 2.2.5-22). Normally, the range is between 0 and 10 mg/liter, the 1978 data all fall within this range except for the April intake sample. Since the discharge concentration is no greater than the intake values, and agricultural practices greatly influence the Kjeldahl nitrogen in the river, the Station did not signicantly affect the Kjeldahl nitrogen levels in.the river. Total Phosphorus as P04 (Phosphate) in 1978 was highv ranging from to 14.5 mg/liter while the preoperational data only ranged from 0.0 to 4.0 mg/liter (Figure 2.2.5-23). The large variation in the 1978 data is caused by the very high concentrations found during April. April is a month of heavy rains leading to large amounts of runoff. Since all three locations are very high and the station does not discharge significant quantities of phosphorus containing chemicals, it seems likely that the high values originated upstream of the station. An tional point is that the high values are above the accurate range of the method used so that a comparison between the intake and discharge is not viable. It seems logical that the station did not affect the phosphorus concentrations, the ambient variations resulting from runoff to the river

  • M P79 9 02/3 2.2-45 0 N 0 ;; 0 .. 0 .; 0 ,.; 0 NITRATE AT LOCATION 1 c Q.._ ____________

......,,.._ ____ ,_,, ______ ._.--1 JAN fEB MAR APR MAY JUN JUL. AUG SEP OCT NOV OEC NITRATE AT LOCATION 3 0 .: 0 0 0 T ;; I 0 !! 0 !!? 0 0 .. 0 ..; I A l c . 0 I I ,.; i i 0 1 Q JAN PEB MAR APR MAY JUN AUG SEP a:r NOV DEC F'UBLIC SERVICE ELECTRIC ANO GAS COMPANY SALEM NUCLEAR GENERATING STATION 2.2-46 0 N NITRATE AT LOCATION 2 JAN fEB MAR APR MAY JUN JUL. RUG SE? OCT NOV DEC LEGEND PREOPERATIOHAL MAXIMUhD 1971 DATA PREOPERATIONAL. AVERAGE 1978 DATA PREOPEAATIOl<AL MINJllUlll LOCATION I

  • DISCHARGE LOCATION 2
  • INTAKE LOCATION ! = ULITStOE AND OOWNSTRt::AM Qi:' THE MIXING ZOME Nitrate As N03 Figure 2.2.5-21 * * * * * * * * * *
  • 1 KJE:...DAH:...

N r "I"ROGEN AT :...i:;ci::r ION l I KJELDAHL AT LO CAT r ON 2 0 3 l THE rs 330 I I '! A I\

  • I : I d /\ I -I Wo t..I :J s :J: 5 ffi \ ""
  • I I: I \ I :1 I \ I ;j I I I I I j I
  • I
, ' ./
  • * * * **
  • KJELDAHL AT.LOCATION 3 0

...... " " !! ..J" .... 1e i l\i'! .. z: " * .. ... :, I : I m : ; 7'">e " *I LEGEND PllEOPERATIONAL. MAXIMUM 1977 DATA PRECPE,.ATIONAI. AVERAGE 1978 DATA PAECP!RATlOllAI. lllNIMUM . I

  • CISCHllRGE 2
  • INTAllE 3
  • OUTSIDE AND QCWNSTIIEAM OF THE MIXING ZONE PUBLIC SERVICE ELECTRIC ANO GAS .COMPANY K j e 1dah1 Nit r 0 gen A s N SALEM NUCLEAR GENERATING STATION Fi gur e 2
  • 2
  • 5 -2 2 2.2-47 0 HOSPHATE AT LOCATION l c !!? c "' !:! c "' :! "' w ,_c -.; _, "' w c...,,
c: a: 0: :: 0 _,. _, :c: "' 0 ,.; "'

J Q c i c

  • 0 c y c ..
  • JAN f'EB MAR APR NAY JUN JUL AUG SEP OCT NOV DEC PHOSPHATE AT *LOCATION
  • 3 0 c "' c ,; c JF.N f'E9 HAR APR HAy JUN JUL AUG SEP OCT NOV DEC PJBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION * "'HOSP HATE AT LOCATION 2 c !!? * "' !:! 0 "' :! c * "' w ,_c -.; _, "' w c...,,
c: a: "' "' -o j.D :c: * "' c l ,.; "' I c r T c Q
  • ci B JAN FEB MAR APR MAY JUN JUL SE? CC! NOV DEC
  • LEGEND t PREOPEAATIONAL

"-"'IMUU 1977 DATA * ! PREOP£RATIONAL AVERAGE 1978 DATA PllE0P£AATIONAL lllNIUUU

  • LOCATION I
  • DISCHARGE LOCATION 2
  • INTAJCE LOCATION 3 OUTSIDE ANO !lOWNSTREAM o* THE MIXING ZONE. *
  • Phosphate As P04 Figure 2.2.5-23 202-48 *
  • * * * * * * * *
  • CHLORINE DEMAND Thirty (30) second and three (3) minute chlorine demand were determined as part of the river monitoring program. The 30 second chlorine demand for 1978 ranged from 0.2 to 2.4 mg/liter (Figure 2.2.5-24).

Six times the 1978 demand was greater than the preoperational maximums and 7 times the 1978 values were below the minimums. The intake and charge demands were similar with neither location having a consistently greater value. The 3 minute chlorine demand is usually greater than the 30 second demand for preoperational data. In 1978 the 3 minute demand ranged from 0.2 to 3.8 mg/liter, while the ational data ranged from 0.1 to 10.0 mg/liter (Figure 2.2.5-25). Only during the June sample did the demand ceed the preoperational average. The reduction in demand at all stations appears to be linked to the reduced ammonia levels present in the river in 1978. A comparison of the-intake and discharge indicate that neither location had consistently higher or lower demands

  • M P79 9 02/4 2.2-49 30 SEC CHLORINE DEMAND AT LOCATION l "' ..; "'

"' w c.."' "'"' l c r 0:: r "' "' -o ...J. I ...J"' r c "' 0 "' l ! ci 0 J. ci JAN fEB MAR APll MAY JUN JUL AUG SEP ocr NOV OEC 3D SEC AT LCCATICN 3 "' "' w ,,_o ..:..,.:: ...J "' w c..,, "'"' c r 0:: "' "' -o v jN I r I . "' c u1 0 , ; I I i ,. A 4 I l I ; I ci I ! 1 + 0 ! 0 JAN !'EB MAR APR MAY JUN 'lUG SEP OC7 NOV DEC PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION

  • 30 SEC CHLORINE DEMAND AT LOCATION 2 *
  • c
  • c 0 8 *

..... ...,....,_,....,....,...._,.--1 JAN F"EB "AR APR MAY JUN JUL AUG SEP CC"! NOV OEC

  • LEGEND PAEOPEAATION&L IU.XIWUW
  • 1977 DATA pREOPERATIONAL AVERAGE 1978 DATA PREOP£AAT10NAL MINIMUM
  • LOCATION I
  • DISCIWIGE LOCATION 2 II IN TAKE LOCATION 3
  • OUTSID£ ANO OOWNSTREAJ.i OF THE MIXING ZONE *
  • 30 Second Chlorine Demand As c1 2 Figure 2.2.5-2 2.2-50 *
  • * * * * * .* * * * **
  • 3 MIN CHLORINE DEMAND AT LOCATION 1 c :! ;! 0:: j::: -.. ..J 0:: w 1 a..,. en.: :c 0:: 0:: "'. -o _, . ..J'° i: .. ..: " ,.; " . ....: ...............

..... -i JAN FEB MAR APR MAY JUN JUL AUG SE? OCT NOV DEC 3 MIN CHLORINE DEMAND AT LOGATION 3 0 __ " ,.; JAN FEB MAR APR MAY JUN JUL AUG Se:P OC! NOV oe:c PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION *-3 2.2-5l w MIN CHLORINE DEMAND AT LOCATION 2 "' ;! :r w ,_ 0 -,; ..J 0:: t..I l a..,. en,.: :c , I 0::: 0:: =:" 2:0 I :c r .. r T r r I r I I I i I I 0 I i I ! i I I ,.; ff j I I 1 I I 'W "' l

  • I c [ I ! I " I * . 0 . 0 JAN FES MAR APR MAY JUN JUL AUG sC:P OCT NOV oe:c LEGEND. PREDHRATIONAI.

MAJUNUM_ 1977 DATA PREOPEllATIONA!.. AVERAG£ 1978 CATA Pll!OP£11ATlciow. MIMINM l.OCATION I

  • DISOl&RGE l.CCATIOll 2
  • INT&I<£ WlCATION 3
  • OUTSIDE AHO DOWNSTREAM THE lllllNG ZONE Minute Chlorine Demand A,s Cl 2 Figure 2.2.5-25 METALS Iron concentrations vary from o.o to 11.0 mg/liter for operational data. The 1978 data varied from 0.5 to 13.5 mg/liter (Figure 2.2.5-26).

The increased variation during 1978 appears to be due to large natural variations or charges from upstream of the Station. The highest 1978 value of 13.5 mg/liter was outside and downstream of the mixing zone during June. The concentration at the intake was high, 9.0 mg/liter, but the value at the discharge was only 5.5 mg/liter. April showed a high centration at the intake, but low concentrations were present at the discharge and downstream of the discharge. These wide fluctuations between locations indicate that "slugs" of iron rich water may be passing downstream. The station does release some iron containing compounds but the releases are small and constant over the year. Therefore, it is concluded that the station did not cantly alter the river's iron concentrations. Copper levels for preoperational data varied from near 0.0 to 6.5 mg/liter. The 1978 data ranged only from near 0.0 to 0.6 mg/liter (Figure 2.2.5-27}. Only during November did the discharge value exceed the intake value by an able amount, but this high concentration was still within the preoperational range forthe montho Since the only Station source of copper is small amounts arising from rosion and only the November sample shows any indication of a higher copper concentration at the discharge, no Station *impact is noted. Chromium levels near the station are very low and near the limit of detection. The preoperational range, excluding the extremely high M.arch data, is between o.o and 0.8 mg/liter. The 1978 data is between 0.0 and 0.2 mg/liter (Figure 2.2.5-28). Since the station does not discharge any nificant quantities of chromium, and all of the 1978 data is close to the limit of detection, it is reasonable to clude that the station did not affect the chromium levels in the river. Manganese concentrations ranged from 0.0 to 0.64 mg/liter in the preoperational data. The 1978 data ranged from 0.02 to almost 1.0 mg/liter with the preoperational maximums being exceeded seven times (Figure 2.2.5-29). Extreme variation was present between locations for most sampling dates. Since the station does not discharge a significant amount of manganese and the variation in the river is generally high, a Station impact on the manganese levels in the rivet is M P79 9 02/5 2.2-52* * * * * * * *. * * * ** *

  • * * * * * * * * *
  • Zinc concentrations ranged from 0.0 to 0.19 mg/liter (Figure 2.2.5-30 -Note the scale change for location 2). The 1978 data had a smaller range of 0.05 to 0.4 mg/liter.

The preoperational maximums were exceeded six times. The discharge and intake locations were similar indicating no significant plant discharge. The high values encountered in 1977 were not seen in 1978. The river's concentration is not affected by the plant since no ziric compounds are discharged into the circulating water system. PHENOLS There are no phenol results presented in graphical form because the concentrations were usually below detectable levels. The preoperational data ranged from 0.001 to 0.130 mg/liter, while the 1978 data ranged from below detectable levels to 0.025 mg/liter. The low levels for 1978 are to be expected since the Station does not discharge any chemical in large quantity which contains phenols. Any phenols in the river would result from other sources

  • M P79 9 02 1/6 2.2-53 TOTAL IRON AT LOCATION 1 0 D 0 0 / r--..... I / '\ v v JAN F'l:B MAR APR MAY JUN JUL AUG SEP OCT NOV oe:c '.OTAL IRON AT LO°CATIOf'S 3 C> c !::! 0 2 er w ,_o -.,; -' cr w "'" :c <C 0 0 "' "' -= :c . I C> f ..; T I I I I
  • l I l I
  • 0 l 1 = JAN PE:B MAR APR MAY JUN JUL SE:P OCT NOV oe:c PUBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION C> ., 0 TOTAL IRON AT LOCATION 2 0 y c
  • I '°-4-..._

........... ..._ .... __ .... JAN l'EB 1'1AR APR 1'1AY JUN JUL AUG SEP OCT NOV oe:c LEGEND MAXIMUM 1977 DATA PRECi'EAATIONAC ,AVERAGE 1971! DATA 111 .. llUll L.OCATIOll I

  • DISCHARGE LOCATION 2
  • INTAKE COCATION 3 ' OUTSIOE ANO DOWl'ISTllEAM OF THE MIXING ZONE Total Iron As Fe Figure 2.2.5-2 2.2-54 * *
  • el * * * * ** * *
  • TOTAL CCPPER LOCATION TOTAL COPPER AT LOCATION 2 * " d * * ,., d * " JAN f"E6 MAR APR MAY JUN JUI. AUG Se:!' OCT NOV OEC d4-.......................... .................

...;. ..................... JAN F'EB MAR APR MAY JUN AUG SEP OCT NOV DEC .* TOTAL COPPER AT LOCATiGN 3 " LEGEND .. d Pll£0PERAT10NAI. llAXlllUll

  • m d 1977 DATA d Pll!OP£RATIONAI.

AVERAGE

  • P11£0Pt:llAT10N&L YIMllUlll 0:: ! -= -' 0:: t..I

!J'IQ :c c: 1979 DATA 0:: "' -* ;: LOCATION I

  • DISCHAJIG[

,., d LOCATION 2

  • INTAKE d LOCATION 3
  • OUTSIDE ANO OOWMSTltEAll OF THI!:
  • lllXING ZONE "

......... --............. .....; .... ......... --1 JAN f"Ol MAR APR MAY JUN JUI. AUS SEP OCT NOV OEC

  • PUBLIC SERVICE ELECTRIC AND GAS" COMPANY Total Copper As Cu SALEM NUCLEAR GENERATING STATION Figure 2.2.5-27
  • 2. 2-5 5

" .,; CHROMIUM AT LOCATION ci+....:;:::::5.-- .... .... ...:::ll=- ... .J'iN M"lY J!!N JUL RUG SEP OCT m:c CHROMIUM AT LOCATION -3 " .. * .,; I " .,; I " :r :.:: I .... _,..; I "' "" I c..., :.n,.; r I a: i "' 2 r., /k ... " .1 I I I I I .1 0 I I " 1: l 0 JAN r::s MAY JuN JUL AUG SEP OCT NOV m:c PUBLIC SERVICE ELECTRIC AND GAS COMPANY . SALEM NUCLEAR GENERATING STATION CHROMIUM AT LOCATION 2 ...... JAN MAR 1'19Y JU!l.J JU ... _,UG SE:? :)1::7 !'\G'/ / LEGEND PREOPERATIONAL MAXIMUM 1977 DATA

  • PAEOPEAATIONAL

'AVERAGE 1976 DATA PAEOl'EAATIONAL MINIMUM LOCATION I

  • DISCllAAGE LOCATIO" 2
  • INTAKE LOCATION ! ' OUTSIDE AND DOWNSTREAll OF THE lllXING ZONE Chromium As Cr Figure 2.2.5-28 2. 2-56 * * * * * * * * * * *
  • * ** * * * .* i I. * * *
  • AT LOCATION 0 0 0 o* "' w ..... Jc "' w "'0 l :c er "' "' *a l :c r r) d I I d ! 1 d " d *. _......_ ..... __ _.._......_,,_

..... ______ ,._ ____ _,. d d " JAN fEB MAR APR MAY JUN JUI. AUG SEP OCT NOV DEC MANGANESE AT LOCATION-3 a a l a d ............... __. .......... .......... ._ .......... -+ ...... --1 JAN F"EB MAR APR MAY JUN JUI. AUG SEP OCT NOV DEC PIJBLIC SERVICE ELECTRIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION AT LCCA!ION 2 LEGEND PREOPERATIOlljW,. WAXIMUll 1977 PREOPERATIONAI. AVERAGE PR!OPeAATlQNAI., MINIMUM LOCATION I

  • OISOfA.l'GE Z
  • INTAKE LOCATION l * . OUTSI OE AND OOWlfSTREAll OF THE MIXING ZONE Manganese As Mn Figure 2.2.5-29 2.2-57 ZINC AT LOCATION 1 c m 0 .. 0 ci !" -.; _, a:: "" enc :c a: "' "' -* :c 0 c c "' 0 c c+.......,..-...-

..... ...,. ..... ,.......,.. ..... 1--..,.......,...- .... ...,. ..... ,...."""' m 0 N c . JAN F'!:B MAR APR MAY JUN JUL AUG SC:P OCT NOV DEC ZiNC AT LOCATION 3 c r 1

  • c c ! ..........
... ..... ...,. ...................

...-......................... __ "."""'""""' I JAN F'EB MAR APR MAY .;uN JUL AUG SEP OCT NOV OE:C PUBLIC SERVICE ELECTRIC ANO GAS COMPANY SALEM NUCLEAR GENERATING STATION c . Zinc ZINC AT LOCATION 2 JAN F'EB MAR APR MAY JUN JUL AUG SEP OCT NOV DE:C LEGEND MAXIMUM 1977 DATA PREOPERATIONAl. AVERAGE 1978 DATA PllEOl'EllATIDNAL MINIMUM UlCATIOI< I

  • DISCMAllGE LOCATION 2
  • INTAKE LOCATION !
  • OUTSIDE AND DOWNSTREAM CF TH! MIXl .. G ZONE As Zn Figure 2.2.5-30 2.2-58 * * * * * * * * * * *
  • * * * * * * * * * **
  • SECTION 3.0 BIOTIC MONITORING AND SURVEILLANCE PROGRAMS The results of the General Ecological Survey (ETS Section 3.1.2.1) from January through December 1978 are presented in this section. In addition to the required data, additional non-required study data are presented as these data contribute to an understanding of local ecological schedules and relationships.

The objective of the studies is to identify significant changes in population characteristics relative to pre-operational levels, and to evaluate these relative to Salem operation

  • 3.1 AQUATIC (ETS Section 3.1.2.1.1)

The study area is located in the lower Delaware River. It extends approiimately 8 km north and 10 km south of the station's location which is on the southern portion of Artificial Island in Salem County, New Jersey about 80 km from the mouth of Delaware Bay and 1.6 km upriver from the head of the bay. Primary emphasis has been directed at the area which is affected by the Salem thermal plume, although sampling is done throughout the region. The Delaware River in this Region is estuarine and is bordered by extensive marshland and occasional small sandy beaches. There is little industrial development on this portion of the river. Width varies from 3 km at Artificial Island over 8 km in the southern portion of the study area. Limited sampling is also done in three of the four tidal creeks entering the Delaware River in this region: Alloway and Hope creeks in Salem County, New Jersey and Appoquinirnink Creek in New Castle County, Delaware. For further information on the character of the area see Volume 2 of the 1977 Annual Environmental Operating Report

  • 3.1-1
  • * * * * * .* * * * **
  • 3.1.1 Phytoplankton (ETS Section 3.1.2.1.la)

A study of phytoplankton which occur in the Delaware River near Artificial Island was initiated in March 1973 and continued in 1978. Objectives are to determine seasonal trends in size, photosynthetic rate, and composition of the standing crop. 3.1.1.1 Summary* Phytoplankton are microscopic plants which live suspended in water, with little or no mobility, and whose distributions are determined largely by local water movements. They are the primary producers which, along with water-born detritus, *form the basis of the local estuarine food web

  • In 1978 the phytoplankton standing crop was dominated by diatoms. Skeletonema costatum, a diatom that inhabits brackish and marine waters, was the most abundant species. Phyto-flagellates, green algae, blue-green algae, euglenoids and dinoflagellates were present seasonally or throughout the year, but were generally not dominant.

The standing crop, as indicated by mean chlorophyll a level, varied seasonally, being highest from late May through June. Chlorophyll a levels were somewhat lower from July through August and decreased further from September through December. Phytoplankton production (photosynthesis) was highest in July and lowest in November and March. Productivity was highest near the. surface where light penetration was greatest; it decreased with depth and was negligible at 1 or 2 m. This abrupt drop in carbon production from the surface to the 2-m depth suggests that local phytoplankton production, which is seasonal and restricted to a relatively shallow euphotic zone, is probably not sufficient to supply the total local primary food base

  • Plant detritus also contributes to the local food base. The phaeo-pigments (decomposition products of chlorophyll a) are indicative of the detrital load which fluctuates seasonally.

Mean concentrations of phaeo-pigments were highest from late May through early August; low concentrations occurred from March to early May and from late August through December. 3.1-2 Two years (1977 and 1978) of operational studies of phytoplankton have been completed and objectives have been met. The data generated forms an adequate base for assessing the impact of Salem on the study area. Review and analysis of the data presented in this and in Volume 2 of 1977 Annual Environmental Operating Report, show that seasonal levels of phytoplankton standing crop and surface net productivity were similar to pre-operational (1974-1976) norms. Additionally, there has been no discernible impact* on community structure. This was indicated by the annual appearance of similar dominant taxa, particularly the diatoms, which are best represented by Skeletonema costatum. 3.1.1.2 Materials and Methods FIELD AND LABORATORY The requirements of the Phytoplankton ETS were satisfied. Two replicate samples for pigment studies were collected near the surface and bottom at 10 stations (Table 3.1.1-1, Fig. 3.1.1-1) semimonthly from April through October and monthly in March, November, and December; single 125 ml aliquots from each replicate-sample at stations PPOS, PP06, and PP07 were combined and used for taxonomic enumeration. Samples for productivity studies were taken at depths of O.O,* 0.5, 1.0, and 2.0 meters at stations PP05 and PP07 bimonthly from March through November. No samples were collected in January and February because of severe icing conditions. All samples were taken with an 8.1-liter Van Dorn bottle. For a complete description of gear, gear deployment, collection of physicochemical data, and laboratory procedu_res refer to Volume 2 of the 1977 Annual Environmental Operating Report. On March 7 a quality control sample containing known pigment concentrations was obtained from the Environmental Protection Agency. This sample was analyzed to test accuracy and precision of methods used. Measured concentrations were within the limits of reference values provided (Table 3.1.1-2). Additionally, units used in counting algae genera are given in Table 3.1.1-3. 3.1-3 * * * * * * *. * * * * *

  • * * * * .* * * * **
  • DATA REDUCTION Principal components analysis (BMDP4M Factor Dixon, 1975) was used to calculate and display similarities in pigment concentration among stations or groups of This method is described by Marriott (1974) and Pielou (1977). Sampling times were taken as variables and stations as observations.

A sampling time x samplirtg time (R-mode) moment correlation matrix was calculated from log (X + 1) transformed chlorophyll a and phaeo-pigment data. The factor scores for each station-along only the first three principal component axes were then plotted . 3.1.1.3 Results and Discussion CHLOROPHYLL A AND PHAEO-PIGMEN'rS A total of 680 samples for standing crop studies was taken near Artificial Island on 17 sampling dates from March 23 through December 19, 1978 and analyzed for pigments. Chlorophyll a and phaeo-pigment concentrations varied seasonally. -The lowest c§lorophyll _§. levels measured were on April 7 (mean 3.5 mg/m + 2.1); the highest measured were on June 7 (30.8, + 10.l) (Fig. 3.1.1-2). Mean standing 3rop was typically low in March and April 3.5-7.6 rng/m ). It increased in May (range 6.4-23.0 mg/rn ) and peaked on June 7. Mean concentration decreased 3 rapidly from late June through August (range 10.0-25.8 mg/m ) and decreased further from September through December (range 5.3-8 0 7)

  • The lowest pha30-pigment levels measured were on November 6 (mean 4.9 mg/m + 2.1); the highest were on June 19 (27.0, + 14.6) (Fig. 3.1.1-3).

Mean concentrations wer3 high from late May through early August (13.4-27.0 mg/m ); low concentrations occurred from March to early May (5.0-8.4) and from late August to December (4.9-8.7) . Similarity among stations was examined using principal component analysis. The first three principal components axes explained 74.2 percent of the total variance (Factor I = 42.7 percent; Factor II = 17.9; Factor III = 13.6) for chlorophyll a concentration and 67.5 percent of the total variance I = 32.1 percent; Factor II = 19.9; Factor III = 15.5) for phaeo-pigment concentration. No stations appeared to be distinctly different from the overall group. 3.1-4 However, a north-south trend in the pattern of seasonal change of pigment concentrations is indicated (Fig. 3.1.1-4, 3.1.1-5). This trend may be related to the effects of fresh water input in the northern and marine or saltwater imput in the southern part of the study area. Examination of tbe data indicated that the vertical distribution of mean chlorophyll a concentration was not consistent among stations or from-date to*date; mean pigment were more consistent, being higher near the bottom in 64 percent of the comparisons. 3 The annual mean chlorophyll a concentration was 11.5 mg/m at the surface and 11.6 near the bottom. 3 The annual mean phaeo-pigment concentration was 9.4 mg/m at the surface and 12.7 near the bottom. The pattern of seasonal change in phytoplankton standing crop was similar to that of previous years* (1974-1977). mean chlorophyll a levels in 1977 and 1978 (8.3, 11.5 mg/m ) were similar to pre-operational norms (range 8.3-11.4). PHYTOPLANKTON PRODUCTIVITY Data on photosynthetic rate (gross production, net production, and respiration), chlorophvll a concentration, water temperature, and Secchi disc reading-at stations PP05 and PP07 are included in Tables 3.1.1-4 and 3.1.1-5. High levels of turbidity (Secchi disc readings of 8-16 inches) indicated low light penetration. Gross and net productivity levels were highest near the surface where light penetration was greatest. Levels decreased with depth and were negligible at 1.0 and 2.0 meters. In March and November surface levels were also negligible. Surface net photosynthetic rate at Station PP05 and Station was similar except 3 in May when values were higher at Station PP05 (47 mgC/m /hr) than at Station PP07 <g) (Fig. 3.1.1-6). The production rate was highest (112 mgC/m /hr) in July and lowest (-28 to 28) in March and November. A rapid decrease with depth of gross and net productivity levels was also typical in previous years (1974-1977). Maximum levels of net productivity have always occurred near the surface in the In 1977 and 1978 these levels (range 112-164 mgC/m /hr) were within pre-operational norms (range 110-246); winter levels were negligible in all years. 3.1-5 * * * *

  • e. * * * ** *
  • * * * * * * * * * **
  • PHYTOPLANKTON COMPOSITION AND DENSITY Sixty-five genera representing five divisions were identified in 102 samples taken from Harch through December at stations PPOS, PP06r and PP07 on the transect imrnec'liate.ly west of Salem (Table 3.1.1-6).

These included 31 genera of diatoms (Bacillariophyta}, 23 genera of green algae (Chlorophyta), 5 genera of blue-green algae (Cyanophyta), 3 genera of euglenoids (Euglenophyta), and 3 genera of flagellates (Pyrrophyta).

  • Phytoplankton fluctuated seasonally in abundance and composition.

The lowest densities measured were on April 7 (mean 1,648 cells/ml; range 1,394-1,856); common taxa included the diatoms (86.6 percent of the phytoplankton community), particularly Skeletonema costatum, flagelates (7.3 percent) and green algae (4.7 percent) (Tables 3.1.1-7, 3.1.1-8). The highest densities measured were on May 25 (mean 13,953 cells/ml; range 11,722-17,050); common taxa included the diatoms (84.1 percent of the phytoplankton community), particularly

s. costatum and the genus Melosira, phyto-flagellates (6.7 and green algae (7.9 percent) . The diatoms were most abundant; they comprised 30.l to 87.7 percent of the phytoplankton community, with a mean annual density of 6,060 cells/ml.

Seasonal distribution of diatoms was similar to that of total abundance (Fig. 3.1.1-7). Mean diatom density decreased sharply from late March (8,939 to early April (l,427), increased in late April (5,994), and was highest in late May (11,738). Mean density from June through November fluctuated between 3,836 and 9,522 cells/ml and was lowest in December (800). s. costatum, a diatom that inhabits brackish and marine waters, was the most abundant phytoplankton species. It comprised 3.8 to 82.7 percent of the phytoplankton community (Table 3.1.1-8, Fig. 3.1.1-8), with a mean annual density of 5,442 cells/ml. A number of genera, particularly Melosira, Cyclotella, Navicula, Nitzschia, Synedra, and Coscinodiscus, also occurred throughout the year (Table 3.1.1-6). They were less numerous than s. costatum, except in December when Melosira, Chaetoceros, and Asterionella formosa, were each more abundant (6.7, 5.7, and 4.4 percent of the phytoplankton community, respectively). Genera such as Asterionella and Chaetoceros, occurred seasonally. Phyto-flagellates comprised 6.7 to 46.8 percent of the phytoplankton community with a mean annual density of 799 cells/ml. They were most abundant in late March, September, October, and December. 3.1-6 The green algae comprised 1.5 to 16.4 percent of the phytoplankton community with a mean annual density of 431 cells/ml. Abundance was high in May, June, and late October. Ankistrodesmus falcatus was generally the most abundant species from May through December. Other taxa, particularly the genera Chlamydomonas, Chlorella, Crucigenia, and Scenedesmus, were present throughout the year. The blue-green algae comprised 0.1 to 3.4 percent of the phytoplankton community with a mean annual density of 65 cells/ml. Oscillatoria and Anacystis were the most common genera. Euglenoids and dinoflagellates comprised only 0.0 to 3.3 percent of the phytoplankton community. For the two divisions combined the mean annual density was 33 cells/ml. The pattern of seasonal change in phytoplankton composition and abundance was similar to that of previous years (1974-1977). Mean annual density in 1978 was higher (ca. 7,400 cells/ml) than in the pre-operational years (ca. range 3,500-peak seasonal density (mean 14,000 cells/ml) was within pre-operational norms (ca. range 7,300-14,700).

Diatoms, costatum, were most in all years. 3.1-7 * * * * * * *. * * * ** *
  • * * *
  • Station PPOl PP02 PP03 w I-' PP04 I co PPOS PP06 PP07 PP08 PPlO PPll * * *
  • TABLE 3.1.1-1 PHYTOPLANKTON SAMPLING STATIONS.

Description

  • Between the mouth of the Chesapeake and Delaware Canal and bell buoy "RB" (ca. 0.1 km west of the mouth of the Chesapeake and Delaware Canal). Between buoy N "B" and the northern tip of Artificial Island (ca. 0.5 km north of Artificial Island). Approximately 15 m west of buoy N "A" (ca. 1.0 km west of Artificial Island). Between buoy C "IR" and Reedy Island Dike. Approximately 15 m west of Salem and the mouth of Sunken Ship Cove. Between buoys R "2B" and R "4B" (ca. 1.3 km west of Artificial Island). Between Appoquinimink light and buoy *"lB" (ca. 0.3 km from the Delaware shore). 15 m west of Hope Creek Jetty. 1.0 km NE of Liston Point. Approximately 1.3 km west of the New Jersey shore from a point just north of the mouth of Horse Creek. IA SALEM PP 1978 * *
  • w I-' I l.O r.liquot No. l 2 J 4 Reference vnlucs1 Genus CHLOROPl!YTI\

/\ctlnastrum /\nkistrodesmus Botryococcus Crucigenia Dictyosphaerium Franceia Gonium Kirchneriella Laged1ei:nia Micractinium Pediastrum Quadrigula Scenedesmus Selenastrum Ulothrix CYr.NOPt!YTA /\gmenellum /\nabaena Anacystis Gomphosphaeria Oscillatoria

  • * *
  • TABLE 3,1,1-2* QUALITY CONTROL SAMPLE CHLOROPHYLL AND PHAEO-PIGMENTS ChlorCJphyll

.!!. (mg/m ) . 5.31 6,09 5,69 5,98 6,09 + 1.1 Tl\BLE 3.1.1-3 UNITS USED IN COUNTING ALGAL GENERA * *

  • Unit Colony Colony or cell Colony Colony Colony Colony or cell Colony Colony Colony or cell Colony Colony Colony Colony Colony 100 u filament Colony 100 u filament Colony CoJ.ony 100 11 filament IA SALEM PP 1978
  • Ph11eo3pigment11 (mg/m ) .
  • 3.77 2.83 3,13 3.97 4.17 + 1.4 * * * *
  • * * * * * * * * * *
  • TABLE

SUMMARY

BY MONTH Of PRIMARY PAODUCTION AND CHLOROPHYLL A -STATIOl-l PP05. DATE 03/15178 05111/78 07118178 OYl21/7B 11/14178 TIDE EBB 2 EBB 2 EBB SLACK EBB 2 fl,OOD .2 SAL. (PPT> SURFACE 4.0 6.0 8.0 6.0 10.0 00TTOH TEHP.(C) SUR FA.CE 3.1 13.4 24.2 24.5 9.0 BOTTOM UA 8.0 14.0 26.5 22.0 16.0 OXYGEN (PPH) SURFACE 12.4 9.U 5.7 7.2 10.6 BOTJOH SEC CH I llNCHES> 10 10 14 14 13 SURFACE GROSS (HG/Hl/HR) 9.3 75.U 1 'i9.3 79.6 9 * .S-NET PilOfOSYllTHESIS IMG/MJ/llA) i!.8 46.8 . 112.5 75.0 28.1-RESPIUTION (HG/Ml/HR) 6.5 28.1 46.8 4.6 111. 7 CHLOAOPHYLL*A (HG/H]) 7.0 10.3 11.5 5.8 5.7 w 1/2*METER I-' I GROSS PHOTOSYNTHESIS IMG/Hj/HR) 4.6 18. 7 51.5 23.4 I-' NET PHOTOSYNTHESIS OlG/Hl/HR) 4.6 32.8 9.3 51.5 4.6 0 RESPIRATION CMG/HJ/HR> .o 14.0-46.8 .o 18. 7 CHLOROPtl tLL*A (MG/H]) 6.1 9.9 9.4 5.6 5.3 1-MEJER GROSS PHOTOSYNTHESIS 01G/M.3/HR) .o 4.6 51.5 9.l 32.6-NET PHOTOSYNTHESIS IMG/H:s/HR) 4.6-14.0 4.6-9.3 23.4-RESP I RA TIOll (HG/Ml/HR) 4.6 9.]u 56.2 .o. 9 * .3-CHLOROPH rLl*A (HG/H]) 5.7 16.5 12.3 3.6 6.1 2*METER GROSS PHOJOSYNTHESI& (HG/Ml/HR) 9.3 4.6 60.9 4.6 4.6-NET PHOTOSYNTHESIS (MG/Ml/HR) 14.0 9.l 4.6-4.6 14.0-AESPIRA TION (MG/Ml/HR) 4.6-4.6-65.6 .o 9.3 CHLOAOPtlYLL*A (HG/Ml) 6.1 18.1 12.7 3.5 5.7 IA SALEM PP 1978 TABLE 3.1.1-5 SUr<MARY BY MONTH OF .PRIMARY PRODUCTION AND CHLOROPHYLL A -STATION PP07. DATE 03115178 05111/78 Of/18/78 09/21/78 11/14/78 TIDE EBB 2 EBl:l 2 EBB SLACK EBB 2 FLOOD 2 SAL. (PPT) 'SURFACE 4.0 7.0 6. {) 6.0 9.0 BOTTOM TEMP.(() SURFACE 3.2 1 2." 24.4 24.1 9.2 BOTTOM AIR 9.0 14.5 27.0 23.0 17.0 OXYGEN (PPM) SURFACE 12.8 9.0 6.1 7.3 10.4 BOTTOM SEC CHI (ltJCHESl 8 10 16 10 14 SURFACE GROSS PHOTOSYNTHESIS <"'GIM3/HRl 7.5 4.6 107. II 65.6 37.5 tJET PHOTOSYNTHES!S <r<G/M3/HR) 9.3 .o 103.1 65.6 28.\ RESP IRA fION (MGIM3/HR) 1.8-4.6 4.6 .u 9.3 CHLOROPHYLL-A (MG/MJ) 5.7 11.9 9.9 5.8 8.6 112-METER w GROSS PHOTOSYNTHESIS (MG/M3/HR.) 11.2-4.6 56.2 51. 5 9.3 f--' NET P11010SYNTHESIS (MG/M3/llR) 9.3-18.7 42.1 51.5 9.3 I RESPIRAT!O*l (MG/M3/HR) 1.8-14.0-14.0 .o .o f--' f--' (MG/M3) 4.9 14. 4 5.3 6.1 9.9 1-METER GROSS PHOTOSYNTHESIS (>ICj/"13/HRl 6.5 18.7 18.7 4.6 28.1-NET PHOTOSYt4THESlS (MG/,.3/HR) 6.5 37. 5 9.3 '4.6 .o RESPIRATION (MG/M3/HR) .o 18. 7-9.3 .o 28.1-CHLOROPHYLL-A (MG/M3) 4.9 13.2 1 o. 7 5.8 9.4 2-METER GROSS PHOTOSYNTHESIS (MG/M3/HR) 14.U 4.6-.o 4.6 9.3-NET PHOTOSYNTHESIS (MG/M3/UR) 7.5 9.3 18.7-.o 4.6-RESPIRATION (MG/M3/HRl 6.5 14.0* 18.7 4.6 4.6-CHLOHOPHYLL*A CMG/Ml> 5.J 15. 6 9.9 7.3 10.3 IA SALEM PP 1978 * * * * * * * * * * * * * *

  • * * * * * * * * * * * *
  • TABLE 3. l.1-6 PHYTOPLANKTON TAXA AND THEIR OCCURRENCE-STATIONS PPOS, PP06, and PP07. Month March April May June July August September October November December ___lL_ ...1.____2.!-..

10 25 2..1.2. 7 25 12 26 10 24 6 19 CHLOROPllYTA

  • Actinastrum hantzschia

-. x x Ankistrodesmus falcatus x x x x x x x *x x x x x x x x x x Botryococcus

x Chlamydomonas x x x x x x x x x x x x --x Chlorella

-x x x x x x x x x -x x x --x Cru c lgeriT a -x x -x -x x -x -x x x x -x eulchellum

x --x -x -x ----x Franceia ----------x -x --x Golenkinia

-x --x ---x --G. radiata ---------x x

x Kirchneriella

x --------Lagerh'>im1a

x --x x x Micractin1um

x !:!_. pusillum ----x -----------x Oocyst1s ---------------x -Pediastrum x -x ----x -x ------x P. boryanum -x ---w :[. duelex ----x . Quadrigula lacustris

x I-' Scenedesmus x -x x --x ---x x -X* x x x I s. abundans ---x x x x x x -x I-' s. acuminatus ----x ------N §:. bijuga ---------x x §. d imorehus -. ---x -----x -----x guadncauda

-x x x x x x x x x x -x x x x x Schroeder ta ---------x Selenastrum

x ----Tetraedron

-x ---x -x --x Tetrastrum elegans --------------x -x Treubaria setigerum

x Ulothrix -----x ----Unidentified colonies -x -x --x --x x -x -x -x Unidentified filaments

-x x -x --x .. x ----x EUGLENOPllYTA Euglena x x x x .x x -x X. x x x x x Phacus x ic -x x *x -x x -x ---Trachelomonas

x BACILLARIOPllYTA Centric Biddulehia

--x -x x --------x x Chaetoceros ------x -x x x x x x x x x Corethron ------------x ----Coscinbdiscus x x x x x x x x x x x x x x -x x Cyclotella x x x x x x x x x x x x x x x x x Melosira x x x x x x x x x x x x x x x x x M. granulata -x ---------------Rhizosolenia

x x -x -----x Skeletonema costaturn x x x x x x x x x x x x x x x x x Steehanodiscus

---x ----------x -x Thalass1osira x x -----------x x x IA SAi.EM Pl' 1978 TABLE 3 .1.1-6 CONTINUED Month March April May June July August September October November December 23 7 21 10 25 7 19 7 25 11 22 12 26 10 24 6 19 Pennate

x Amphora ------x -x l\st'?rionella formosa x x -x x x --x -------x x x x ------------x Coccon-e1s

---x ---x -----x - x x ------x -------x Dia to.ma --x --x -----x -----D1ploneis

x . x -x -x -----x ------rn1stulia x --x -----x x x -x x -x fuoslgma x x x ---------x x x x x llantzschia

-x -x x ---------x x Merioion* -x ---x ---x ------11avTcula x x x x x x x x x x x x x x x x x Nitzschia x x x x x x x x x x x x x x x x x Plnnli J arr a ---x -x x x x Pleul-Osiama

x* ----w Rhapl!oneis x --x x x x x x -x .

x ---------------x I-' R. curvata ----------x -x I Suri r-"-tlTa -x x x x x --x ----I-' --x x x x x x x -x x x -x x x w Thnlussionerna x PYRHOPHYTJ\ Gymnodinium

x --x x x -x x x x x QyE_odinium

x ------x ---x x Pi;ridiniu'!!

x -----x x CYJ\NOPllYTA A'lmenell um ---x --x Anabc:1ena

x l\nacystis

x x x x K x K x Gomphosphaeria

x x x --------Oscillatoria

---x x x x --x x x --x x x Unident(f ied colonies -x ---x x -x --x --x x x Unidentified filaments x x x x x x x x x x x x x x -x x IA SALEM PP 1978 * * * * * * * * * * * * * *

  • * * * *
  • I * * * * * * ** TABLE 3 .1.1-7 MEAN DENSITY ANO PERCENT COMPOSlTION OF PHYTOPLANKTON BY DIVISION -STATIONS PP051 PP061 ANO PP07. (NUMBERS I ML> OAH 03/23/78 04/07/78 04121178 05/10178 05125178 MEAN PERCENT MEAN PERCENT MEAN PERCENT MEAN PERCENT ME Ali PERCtNT TAXOllOMlC GROUP DENSITY COMP. DENSITY COMP. OENSlTY COMP. DENSITY COMP. DENSITY COMP. ---------------

C OrlOPH ti 4 72.0 .7 14.9 .9 1 0 .1 .1 23.1 .4 87.l .o 1.5 77.1 4.7 21().8 3.1 625.6 10. 2 11(J97.9 7.9 EUGLtNOPHYTA 32.0 .l 9.6 .6 11. 5 .2 20.5 .3 68. 3 .5 ilACILLARlOPHYTA 1!1938.7 85.8 11426.7 86.6 5199:S.6 .86.4l 41903.2 80.2 111738.4 84 .1 1'.'. 7 .1 PHYTO*fLAGELLATES 11217.l 11.7 120.0 l.3 674.9 9.8 544.8 8.9 941.1 6.7 w lOTAL lt.3uNOAl<CE 101416.0 11648.l 61900,9 61117.2 131953.1 OA TE Oo/07/78 06/19178 07/07(78 08111/lB MEAN PERtENT f!\EAN PERCENl MEAN l'l AN PERCENT A f< HHCtl*T JAAOt1uM1C i;ROUP DENS I lY COMP. DENSITY COMP. orns1n COMP. llENSI TY COMP. DEl*SlTI COMP, ----------*---- CYANOPHYT A 119. 7 .a 7i! .1 .9 116. 2.5 97,6 1.0 9(.9 1

  • 5.4 6111.) 8.6 4UD,9 II. 0 lli7 .9 3.2 427.9 7.0 rnGaNuPHYIA 1!l.9 .z 32.3 .6 11. 7 .2 :i. 6 .1 !IAClLLARlOl'HYTA 9,521.1 116.7 61464.9
  • 81.4 3,953_3 78. 'i 81469..S 87.0 79.0 PtkkOi'HYTA 5.l 6.9 . , 4.8

.3 PHYTO*fLAGtLlATi& 7S9.1 6.9 7i!5.2 9.1 4911.9 10.0 841.1 11. 6 12 .1 TOTAL AilUNDANc& 10,9118.lo

  • 7,91,3,7 S1008.a 9'738.4 b,U/1.ll IA SALEH PP 1975
  • w f-' I f-' lJl DATE 08122178 MEAN PERCENT TAXOllOMIC GHOUP DH*SITY COMP. ---------*----

.. CYAflOPHYTA 81.1 .9 CHLOROPHYTA 374.5 4.1 EUGLE*IOPHY TA 9.3 .1 BAClLLARlOPHYIA 1,a,,l.7 85.5 PYRROPHYTA Y.7 .1 PHYTO-FLAGELLATES 858.9 9.3 TOTAL A8UllDhNCE 9,197.2 TABLE 3. l.1-7 CONTINUED 09112178 09126178 MEAN PERCENT MEAN PERCENT DENSITY COMP. DENSITY COMP. B.5 1.2 68.1 .8 259.U 5.6 288.3 3.5 5.6 .1 29.2 .4 3,835.9 82.5 81.5 5.6 .1 11 .1 .1 490.9 10.6 1,106.9 13*6 4*650.5 8,149.1 10110/76 10124178 MEAN PERCENT MEAN PERCEllT DENSITY COMP. DENSITY C01'4P. 26.7 .3 31.0 .5 378.0 3.6 680.1 10.8 5.6 .1 9,259.9 87.7 4,405,9 69,8 1 7 .1 .2 78.7 1.2 877.2 8.3* 1.118.6 17. 7 10,564.5 6.314.3 DA TE 11/06/78 12119178 Annual MEAN PERCENT MEAN PERCENT MEl\N PERCENT TAX OllOM IC GROUP DENS I TY COMP, OfrjSITY COMP. DENSITY COMP. --------*--- ... .--CYAl<OPHYTA 76.7 1.5 90.5 3.4 65.l 0.9 CHLOROPtlYTA 324.5 6.l 435.U 16.4 430.5 5.9 EUf*LENUPHYTA 9.3 .2 16.l 0.2 BACILLARJOPHYTA 4,004.9 76.2 800.2 30.1 6060.0 82.0 1 <+. ( .3 !Sil. 5 3.3 16.4 0.2 PHYlO*fLAGELLATES llZ5.C> 15.7 1,z45.4 46.8 798.9 10.8 TOTAL ABUNDANCE s.2s1.1 2.659.6 7387,0 IA SALEM PP 1978 * * * * * * * * * * * * *

  • ** ** * * * * * * * * * 'l'ABLE 3.1.1-8 PERCENT COMPOSITION OF PHYTOPLANKTON TAXA WHICH COMPRISED MORE THAN ONE PERCENT OF THE MEAN DENSITY -STATIONS PPOS, PP06, AND PP07 DATE Olli!3/78 04/07/78 04/21/78 05/10/78 05/25/78 06/07/78 06/19/78 07107178 TOOl<OMIC GROUP __________

.. ____ *CYANOPH1TA UNID. F lLAMEtHS 1.9 *CHLOROPHYTA UNID. FILAMENJS 2.2 ULOJHRIX 1.8 CHLORELLA 1.1 A. fALCHUS 7.8 3.1 1.8 4.6 2.6 s. QlJAORICAUDA 1.0 1.8 1.2 1.0 1., w *EUGLEIWPHYTA I-' *BACILLARIOPHYTA I COSC H*OD ISCUS 1 .1 I-' CYCLOHLLA 1.0 1.9 1 .4 1.0 2.2 O'I 1.7 1.0 1.3 1.4 5.0 1.0 s. COS THUM 69.8 72.7 82.0 74.0 73.3 82.0 77.1 72. 5 THALASSIOSIRA 4.5 1.7 A. FOHMOSA 1.0 2.2 "* JAPO"IICA 4.9 2.3 "IAVlCULA 1.6 1.1 1.1 1.3 IA SALEM PP 1978 w I-' I I-' -.....)

  • TABLE 3.1.1-8 CONTINUED
    • ---**-*a-v-------*****--****-**********-************************-************************************-******************

OHE 07125/78 08/11178 08/22178 09/12178 09/26/78 10/10/78 10/24/78 11/06/78 TAXONOMIC GROUP *****-**-**.,...,.*o <>CVANllPl'IYTA

  • C Hl OROPt!YT A A.

2.5 4.4 2.5 4.4 2.9 3.2 9.3 5.0 s

  • 1.3 .tEUGLEIWP>!YTll CYCLOHLLA 2.0 1.3 MELDS IRA 1.5 2.3 1.4 s. COSTATIJM 81.2 69.4 19.0 14.8 76.8 82.7 57.9 59.2 CHAEIOCEROS 1.0 5.8 3.5 2.7 2.1 1.2 3.9 9.3 NI TlSCH*IA 1.4 1.0 2 .1 2.8 2.8 GYMNOOJ'HUM 1.2 DATE TAXONOMIC GROUP OSCILLAIORU
  • CHLOROPHYTA A. FALC*A rus S.
0. PLJLCl'IELLUM ftBACllLARIOPl!YTA CUS C P40D 1 SCUS CYCLOTELLA MELOSIRA S. CuSTATUM CHAE TOCE ROS A. FORMl)SA NlTZSCHlA 11;PYRROPHYTA GYRODlNlUH
  • 12119/78 2.1 8.6 2.9 1.3 1.6 2.9 6.7 3.8 5.7 4.4 2.1 3.0
  • IA SALEM PP 1978 * * * * * * * *
  • -.-. * * * ** * * * * ** * \\ \\ \\ . 0 . \\ -::;;.---]I' r 0 I \ \ ll
  • n II . U II D1law1ra II // II II JI ,, ,, ti ... , .. I I ,., 1 1c1al 0 0 lshnd j Po*i I ProJ "' _ : 11 H.C.G.S. \ I \I o pf6s-o '"POS PP07, ' \. \. \. ' ' \..' 0 '\.' Oolaw1t1 !liver PIO ' ,, ,, ,, <;> l'llyloplanl10R sampling aim ioaa Hew J1rur 0 1'1'11 ,, ,, ,, * \,\.. Shlppl11! .. ntl 0 . ". "' ,, I l I I I 2 Kilam11u1 0 ,, . "" ,, " + . PUJJLIC El.l:CTRIC AND GAS cmlPMIY Phytoplankton

$ampling stations-197S NllCLJ:,\li G1-:;n:llATINC !lTA'l'ION Fiqurc! 3.1.1-1 3.1-18 I

  • r-t Q) 50 40 30 Q) 8 10 J F M A :M I I I t I I I I I I ' J \ \ \ \ \ \ s .Legend V One standard deviation X Meun t:,. One standard dev intion 0 N D J Mean and standard deviation of chlorophyll concentration-1978 1 PUDLIC srnv1rn i::u::crmc AND GAS J I S/\LE:J.!

Gl::NEH/\T!NG S'J'AT!ON . Figure 3.1.1-2 3.1-19 * * * * * * * * * * *-* *

  • *
  • 50
  • 40
  • H
  • Q) Legend --i-J 30 Cl) .e 'V One stundru-d deviation 0 I x Menn * \ -------------
  • r-1 I \ ,6. One st11ndru-d dev iu ti on , ...a I ;j \
  • 0 \ """ I OD 20 I 8 \ \ I \ I \ I \
  • I I ..... I \ 10 I \ ,r/1 tr \ t * \ 0
  • J F M A M J J*. A s 0 N D J *** Mean and standard deviation of PUDLIC l::LECTHrC AND GAS cmtPANY phaeo-pigrnent concentration-1978 SALEM NUCLJ;,rn ST/\TlON Pigure 3.1.1-3 3.1-20
  • PP02 PP01 PP04 PP 11 PP10 PP06 PP07 l I PP05 PP08 . Sirnilari ty on first three 8 PUBLIC i:;r.r:crmc AND GAS component axes based on Ii . ' SJ\LEt.! NUCLEAH GL:NEHATING S'l/\T!Ol'i" ! C:.hlorophy 11 con centra t ion-1978 Figure 3.1.1-4 3.1-21 * * ** * * * * * * * * .,
  • * * * * * * * * **
  • PP03 PP02 PP01 PP04 I PUBLIC l::LECTR!C AND GAS cmtPANY
  • SALEM NUCLJ::,\H GENERATING STATION PPOS PP06 PP08 PP07 PP10 I Similarity on first component axes based PP11 three on phaeo-pigment concentration-1978 Figure 3.1.1-5 3.1-22 f PUlJLIC

!::LECTIUC Mm GAS c*O).!PANY ij SJ\LCM NUCU:,\11 GENEHATING STATION , ----"-'----------------J 1, .... g Fi9ure 3.1.1-6 Net production by phytoplankton measured in surface sarnples-1978 a . 3.1-23 * ** *

  • Legend !:>. Totnl nbunclo.ncc 16000 x Dinlom::i

0 Combined

      • Inc:: luclc:1: HOOO Phy to -flur;c llat.c:i Green nlgnc Bl uc** *r.rccu ulgue Eur, lc!lo id:.. Dino-flt\GC lh\ lC3
  • 12000 10000 * ...... El '-...... 8000 I'/) ...... ...... I Q) c_) \
  • 6000 r
  • 4000 ( 2000 Q . \ I \ . A .... El
  • Q .,d 1 GB..., ..:.El-Ba_ 's ............

\ \ 1LJ S -., I \ s 0 ht' J F M A M J J A s 0 N D J * ** Mean density of phytoplankton by PUlJLIC SEIWICE l!:I.ECTRIC AND GAS division-stations PP05,PP06, and ( SALEM NUCLl::AH GJ::NEHATING STATION PP07-1978 Figure 3.1.1-7 3.1-24

  • 16000 14000 12000 10000 --4 a "'-. 8000 \/l :=I <:) C,) 6000 4000 !!I 2000 J .J F M A M J J A s Legend b. Totul 11bundn11cc X Diatoms D Skclcloncmu costutum -------------

I :'\ I \ \ !!I QGi\ \\ \ 'x \ h 0 N D J . I Mean density of the diatom, PUIJLIC t:LECTl\!C AND GAS Skeletonema cos ta tum -stations SALEM NllCLt:.\l( GENERATING STATlON t-f _P_P_o_s_,_P_P_o_6 _, _a_n_d_P_P_o_7_-_1_9_7_s ______ f Fig u*r e 3

  • 1
  • 1-8 3.1-25 * * * * * *. * * * ** *
  • * * * * * . * * * * **
  • 3.1.2 Ichthvoplankton (ETS Section 3.1.2.1.lb)

Ichthyoplankton collections have been taken in the Delaware River near Artificial Island since 1971. The continuing objectives are to identify and enumerate fish eggs, larvae, and age 0+ young in the Artificial Island area and to determine seasonal and spatial distributions in the region. 3.1.2.l Summary In 1978, 383 ichthyoplankton samples contained a total of 13,664 eggs, 48,907 larvae, and 322 young of 22 taxa. Bay anchovy (Anchoa rnitchilli), weakfish (Cynoscion regalis), naked goby (Gobiosoma bosci), and silversides (Membras* sp./Menidia spp.) were the most abundant species. General life history information is presented under Temporal Distribution. Bay anchovy comprised 87.8 percent of the total catch

  • Eggs, larvae, or young were collected from May through Eggs were most abundant in late June and July, larvae in mid-July, and young in late July. Density of eggs and larvae was greatest at stations south of SalemJ of young it was greatest north of Weakfish comprised 7.6 percent of the total catch. Eggs, larvae, or young occurred from mid-June through August . Eggs were collected only in mid-July, but were not abundant.

Larval abundance characteristically peaked twice; once in mid-June and once in mid-July. Young were most abundant from late June through mid-July. Density of larvae was greatest at stations south of Salem; of young it was greatest north of Salem

  • Naked goby comprised 3.6 percent of the total catch. Larvae or young were collected from mid-June through mid-September.

Larvae were most abundant in mid-July; young were collected in mid-July and early August, but were never abundant. Density of larvae was greatest at stations south of Salem

  • Silversides comprised 0.3 percent of the total catch. Eggs, larvae, or young occurred from mid-June through early August. Eggs and young were collected in mid-and late June and in late July, but were never abundant; larvae were most abundant in late July. 3.1-26 Catch composition and predominant taxa were similar to previous years. Annual mean density was similar to that in 1976, lower than that in 1973, 1974, and 1977, but greater than that in 1975. In 1978 atypically low salinities from May through August probably contributed to a decrease in annual mean density. 3.1.2.2 Materials and Methods FIELD AND LABORATORY The requirements of the Ichthyoplankton ETS were satisfied.

During daylight, samples were taken at 11 stations (Table 3.1.2-1, Fig. 3.1.2-1), monthly in March through May and September through November, and semimonthly frorn June through August. River icing and inclement weather prevented sampling in January, February, and December. Replicate samples were taken at stations IP05 through IP07. Samples were collected with 1/2-rneter (0.5-mm mesh) nets (fitted with General Oceanics digital flowmeters, Model 2030) fished simultaneously near surface and near bottom; middepth samples were taken at stations IP03, IP06, and IP09 where depth (MLW) exceeds 9.0 m (20 ft). For a complete description of gear, gear deployment, collection of physicochemical data, *and laboratory procedures refer to Volume 2 of the 1977 Annual Environmental Operating Report. DATA REDUCTION For purposes of data tabulation and discussion, stations were grouped geographically as eastern (IP03, IP05, and IP08), mid-river (IP06 and IP09), and western (IP04, IP07, and IPlO); and north of Salem (IP01-IP04), on the transect west of Salem (IP05-IP07), and south of Salem (IP08-IP11). 3.1.2.3 Results GENERAL SAMPLE COM:!?OSITION In 1978, 383 ichthyoplankton collections were processed including 168 surface, 47 rniddepth, and 168 bottom samples 3.1-27 * * * * * * *. * * * ** *

  • ** * * * * * * * * (Table 3.1.2-2).

A total of 29,567.0 m 3 of water was filtered and 13,664 eggs, 48,907 larvae, and 322 young of 22 taxa were collected. Taxa represented. by more than 100 specimens, in order of decreasing abundance are: the bay anchovy, weakfish, naked goby, and the silversides. These are discussed below . SPECIES DISCUSSION

1. Bay anchovy comprised 87.8 percent of the total catch and was represented by 55,230 specimens including 13,624 eggs, 41,414 larvae, and 192 young (Table 3.1.2-2).

The annual mean of eggs, larvae, and young was 0.461, 1.401, and 0.006/m , respectively. Bay anchovy eggs were taken from May 17 through September 13 at water temperature of 14.7 to 28.0 C and salinity of 1.0 3 to 10.5 ppt. Mean increased from than 0.001/m on May 17 to 2.090/m on June 28 and 2.510/m on July 12, then steadily decreased through the remainder of the period (Table 3.1.2-3, Fig. 3.1.2-2). Over 85 percent of the total catch of eggs was taken on June 28 and July 12. The mean density station on June 28 and July lj ranged to

  • 18.196/m at Station IP09 and to 12.862/m at Station IP11 3 respectively.

Maximum density per collection was 62.410/m (June 28, Station IP09, near bottom). Annual mean density at stations north of, on the transect 3 west of, and south of Salem was 0.072, 0.226, and 1.091/m , respectively (Table 3.1.2-4). For eastern, and western stations it was 0.190, 0.696, and 0.223/m , respectively (Table 3.1.2-5). mean density was greatest at stations IP09 (1.810/m ) and IPll (1.568) (Table 3.1.2-6). Mean density per date for stations south of Salem and on the transect west of Salem was greater than for stations north of Salem (Table 3.1.2-3). Annual mean density for middepth, and bottom was 0.171, 0.365, and 0.845/m , respectively (Table 3.1.2-2). Over 72 percent of the total catch of eggs was taken in bottom samples. Of the 13,624 bay anchovy eggs collected 14.0 percent were viable (Table 3.1.2-8). Viable eggs were taken from June 15 to August 31; the highest mean percent viable (33.7) occurred on June 15. At stations north of, on the transect west of, and south of Salem mean percent viable was 19.4, 15.3, and 13.2. Mean percent viable for eastern, mid-river, 3.1-28 and western stations was 16.0, 15.0, and 9.6 percent, respectively. On June 28 and July 12, when over 76 percent of the viable eggs were collected, mean percent viable was highest (13.4 percent) at stations south of Salem. The annual mean percent viable (33.6 percent per station) was highest at Station IP06. In surface, middepth, and bottom collections mean percent viable was 9.9, 8.6, and 15.7 percent, respectively. Bay anchovy larvae were taken from June 15 through October 27 at water temperature of 13.8 to 28.0 C and salinity 10 12.0 ppt. Mean per date increased from l.220/m 3 on June 15 to 8.331/m on July 12 and decreased to 0.005/m on October 26 (Table 3.1.2-3, Fig. 3.1.2-2). Over 56 percent of the total larval catch was taken on July 12. density per station on t2is date ranged from 0.777/m at Station IP02 to 28.818/m Station IP09. Maximum density per collection was 42.549/mJ (July 12, Station IP09, near surface). Annual mean density for stations north of, on the west of, and south of Salem was 0.438, 0.998, and 2.753/m, respectively (Table 3.1.2-4). For eastern, mid-river, and western stations it was 0.749, 1.406, and 1.886, respectively (Table 3.1.2-5). Annual mean per station was greatest at stations IP09 and IPlO (3.075) where over 43 percent of the total larval catch was taken 3.1.2-6). From June 15 to July 12 mean density per date was greatest south of Salem and at mid-river stations, Subsequently, catch decreased with no discernible pattern (Tables 3.1.2-3, 3.1.2-7). Annual mean density for surface, middepth 3 and bottom collections was 1.747, 0.971, and 1.107/m , respectively (Table 3.1.2-2). Bay anchovy young were taken from June 28 through November 22 at water temperatures of 9.8 to 28.0 C and salinity of 1.0 to ppt. Mean density 3 per date increased from 0.002/m on June 28 to 0.041/m on July 27, and fluctuated at low levels through the remainder of the period (Table 3.1.2-3, Fig. 3.1.2-2). Over 42 percent of the total catch of young occurred on July 27. mean density per station on this date ranged to (Station with a maximum density per collection of 0.588/m at Station IPOl, near the surface. Annual mean density for stations north of, on the transec} west of, and south of Salem was 0.019, 0.001, and 0.001/m , respectively (Table 3.1.2-4). For eastern, mid-river, and 3.1-29 * * * * * . * * * -* .,. *

  • * * * * . * * * * **
  • western stations it respectively (Table density per station (Table 3.1.2-6).

3 was 0.003, 0.001, and 0.002/m , 3.1.2-5)3 The highest annual mean (0.067/m ) occurred at Station IPOl Annual mean density for surface, and bottom collections was 0.011, 0.001, and respectively (Table 3.1.2-2). Over 85 percent of the total catch of young was collected in surface samples. 2. Weakfish comprised 7.6 percent of the total catch and was represented by 4,796 specimens including 2 eggs, 4,709 larvae, and 85 young (Table 3.1.2-2). The annual mean density of eggs, and young was less than 0.001, 0.159, and 0.003/m , respectively. Two eggs were collected on July 12 at Station IPll (one near surface and one near bottom) at water temperature of 22.0 to 23.7 C and of 7.0 ppt. Mean density on this date was 0.001/rn (Tables 3.1.2-3). Only one of two eggs collected was viable (Table 3.1.2-8) . Larvae were collected from June 15 through August 10 at water temperature of 20.0 to 28.0 C and salinity to 10.0 ppt. mean density per date occurred on June 15 (0.907/m ); a sec?ndary peak occurred on July 12 (0.689) 3 {Table 3.1.2-3, Fig. Values ranged from 0.005/m on August 10 to 0.107/rn 3 on June 28. Maximum density per collection was 16.216/m (June 15, Station IP08, near bottom). This single collection represented 35 percent of the total larval catch (1,654 of 4,709 specimens) . Annual mean density at stations north of, on the transect 3 west of, and south of Salem was 0.013, 0.080, and 0.386/m , respectively (Table 3.1.2-4). For eastern, and western stations it was 0.399, 0.184, and 0.063/m , respectively (Table 3.1.2-5). From June 15 through July 27 mean density per date was greatest south of Salem. Subsequently, catch decreased with no discernible pattern (Table 3.1.2-3). From June 15 through July 12 mean density per date was greatest at eastern and mid-river stations with no discernible pattern after this period (Table 3.1.2-7) . Annual mean density in for surface, and bottom collections was 0.050, 0.240, and 0.268/rn , respectively (Table 3.1.2-2). Weakfish young were collected from June 15 through July 12 and from August 10 through August 31 at water temperature of 21.0 to 28.0 C and salinity to 10.0 ppt. mean density per date occurred on June 28 (0.024/m ) and July 12 3.1-30 3 ). Other levels were equal to or less than 0.001/m (Table 3.1.2-3, Fig. On June 28 mean density per station ranged to 0.131/m at jtation IP03. Maximum density per collection was 0.359/m (June 28, Station IP03, middepth). Annual mean density for north of, on the transec1 west of, and south of Salem was 0.005, 0.003, and 0.001/m , respectively (Table 3.1.2-4). For eastern, and western stations it was 0.008, 0.002, and 0.003/m , respectively (Table 3.1.2-5). From June 15 to July 12 mean density per date was greatest either north of, or on the transect west of, Salem. Subsequently, catch decreased with no discernible pattern (Table 3.1.2-3). Annual mean density for surface, middepth 3 and bottom collections was 0.001, 0.008, and 0.004/m , respectively (Table 3.1.2-2).

3. Naked goby comprised 3.6 percent of the total catch and was represented by 2,241 specimens including 2,238 larvae and 3 young. The annual mean d3nsity of larvae and young was 0.076 and less than 0.001/m, respectively (Table 3.1.2-2).

Larvae were collected from June 15 through September 13 at water temperature of 20.0 to 28.0 C and salinity of l.0 3 to 10.0 ppt. Mean per date increased from 0.003/m on June 15 to 0.396/m on July 12; density steadily decreased through the remainder of the period (Table 3.1.2-3, Fig. Mean density per station 3 on July 12 ranged from 0.023/m* at Station IP02 to 1.873/rn at IP09. Maximum density per collection was 2.218/m (July 12, Station IP09, near surface). Annual mean density for stations north of, on the west of, and south of Salem was 0.029, 0.059, and 0.142/m , respectively (Table 3.1.2-4). For eastern, mid-river, and western stations it was 0.073, 0.104, and 0.036, respectively (Tabje 3.1.2-5). Annual mean density was greatest (0.198/m ) at Station IP09; at oth3r stations it ranged from 0.017 (Station IP02) to 0.184/m (Station IPll) (Table 3.1.2-6). From June 15 through July 27 mean density per date was greatest south of Salem. Subsequently, catch decreased with no discernible pattern. For eastern, river, and western stations mean density per date followed no discernible pattern (Table 3.1.2-7). Annual mean density for surface, rniddepth 3 and bottom collections was 0.060, 0.112, and 0.084/m , respectively. 3.1-31 * * * * * * *. * * * ** *

  • * * * * .* * * * **
  • A total of three naked goby young was collected on July 12, and August 10 at water temperature of 26.6 to 27.6 C and salinity of !*0 to 5.0 ppt. Mean per date was than 0.001/m on July 12 and 0.001/m on August 10. One specimen per station was taken near bottom at stations IP02, and IP07 on August 10 and at Station IP09 on July 12 . 4. Silversides taken in the Salem study area are potentially one of three species. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable
  • However, young were identified to species and are discussed separately.

Silversides comprised 0.3 percent of the total catch and were represented by 191 specimens including 8 eggs, 182 larvae, and 1 young (Table 3.1.2-2). Annual mean density of eggs, larvae, 3 and young was less than 0.001, 0.006, and less than 0.001/m , respectively. Eggs of the silversides were collected on June 15, June 28, an July 27 at water temperature of 21.0 to 27.0 C and salinity of 0.5 to 6.0 Mean density on these dates was 0.001, 0.001, and 0.002/m , respectively (Table 3.1.2-3). Seven of the eight eggs were taken in bottom collections (Table 3.1.2-2). All eggs collected were viable (Table 3.1.2-8). Larvae were collected from June 15 through August 10 at water temperature of 20.0 to 27.5 C and salinity 10.0 ppt. Mean per date increased from 0.008/m June 15 to 0.037/m on July 27, then decreased to 0.013/m on August 10 (Table 3.1.2-3, Fig. 3.1.2-5). Annual mean density for stations north of, on the transec! west of, and south of Salem was 0.007, 0.008, and 0.003/m , respectively (Table 3.1.2-4). For eastern, and western stations it was 0.002, 0.002, and 0.013/m , respectively 3.1.2-5). Annual mean density was greatest (0.021/m ) at IP07; at other stations it ranged from 0.001 to 0.018/m (Table 3.1.2-6) . Annual mean density for surface, middepth 3 and bottom collections was 0.004, 0.001, and 0.010/m (Table 3.1.2-2). Bottom samples contained over 64 percent of the larval catch. One young Atlantic silverside (Menidia rnenidia) was collected on June 28 at Station IPlO near bottom at water 3.1-32 temperature of 25.9 C and salinity 3 of 4.5 ppt. Mean density on this date was less than 0.001/m (Tables 3.1.2-3). COMPARISON OF YEARS Since 1971 from 19 to 26 taxa of ichthyoplankton have been collected arinually. Fishes taken each year were bay anchovy, naked goby, river herrings (Alosa spp.), weakfish, Atlantic silverside, silversides, northern pipefish (Syngnathus fuscus), white perch (Merone americana), striped bass (Merone saxatilis), American eel (Anguilla rostrata), and spot (Leiostomus xanthurus). Species taken for the first time in 1978 were the goldfish/carp (Carassius sp./Cyprinus sp.) and white sucker (Catostomus commersoni) (Table 3.1.2-9). The total abundance of ichthyoplankton increased from 1971 through 1974. In annual mean densit3 decreased by 60 percent, from 3.836/m in 1974 to l.556im . In 1976 and 1977 it increased to* 5.347 and 25.215/m 3 respectively. Annual mean density decreased to 2.128/m in 1978. The bay anchovy has dominated annual catch since 1971. Percent of the total catch has ranged from 77.3 to 97.7. In 1978 it coQprisea 87.8 percent of the total catch. Eggs of the bay anchovy have comprised from 96.0 to 99.9 percent of each annual egg catch. The percent egg catch (99.4 percent) was in 1978. Annual mean density was highest (13.728/m) in 1977, increasing 400 percent from the 1976 level. In 1978 annual mean density of eggs was over 29 times less than that in 1977. Annual mean percent viable was 14.0 in 1978, but has ranged from 11.6 in 1975 to 25.2 in 1977. Since 1971 bay anchovy larvae have comprised from 68.7 to 98.2 percent of the annual larval Annual mean density was highest in 1977 (10.885/m ), similar in 1976 (1.685) and 1978 (1.401), and low in 1973, 1974, and 1975 (0.197, 0.725, and 0.479, respectively). Weakf ish 3 density increased from 1971 through 1975 (0.021/m }, decreased in 1976 and peaked in 1977. Annual mean density in 1977 was more than 19 times greater than in 1975, 51 times greater than in 1976, and 2 times greater than in 1978. From 1974 through 1978 annual density of young weakfish remained low to 0,003/m ) .

  • Mean deniity of naked goby increased from 1971 through 1976 (0.446/rnJ)i it decreased in 1977 (0.121) and again in 1978 (0.076). -3.1-33 * * * * * *. * * * ** *
  • * * * * * .* * * * **
  • In 1978 the annual mean density (2.128/m 3) of ichthyoplankton was similar to most other years 0.931 to 4.046), but was less than 12.5 percent (17.921/m) of 1977 densities.

During May through August of 1977 and 1978 mean salinity ranged from 3.0 to 15.0 ppt and 1.4 to 4.2 ppt, in previous years (1972-1977) it ranged from 1.7-9.0 ppt. Lower salinities in 1978 probably contributed to the slight decrease in ichthyoplankton density . TEMPORAL DISTRIBUTION During March through May at least seven species were taken. They were the marine spawned American eel and sand lance (Ammodytes spp.); the freshwater spawned white perch, striped bass, river herrings, and white sucker; and the estuarine spawned bay anchovy (Fig. 3.1.2-6). These species were in relatively low density per date (not exceeding 0.008/m ) (Table 3.1.2-3). The occurrence of marine spawned ichthyoplankton was the result of migration or transport to low salinity nursery grounds. The occurrence of freshwater spawned ichthyoplankton was largely the result of transport from upriver or from local tidal tributaries. The first of an estuarine spawned species this period was on May 17. During June through September, the period of maximum ichthyoplankton density, at least 13 species were collected

  • They were the marine spawned spot and windowpane (Scophthalmus aquosus);

the freshwater spawned striped bass, -white perch, river herrings, and minnows (Cyprinidae); and the estuarine spawned bay anchovy, weakfish, naked goby, hogchoker (Trinectes rnaculatus), black drum (P9gonias cromis), silversides, and northern pipefish. Bay anchovy, weakfish, and naked goby, the most abundant taxa during this period, were the product of local and downbay spawning. The occurrence in the study area of ichthyoplankton spawned downbay was the result of upstream estuarine transport. Bay anchovy spawns in early evening (Hildebrand and Cable, 1930) and eggs have a relatively short incubation period (Kuntz, 1914). Peak density in June and July indicate that spawning occurred near the study area. Weakfish eggs have a longer incubation period (Harmic, 1958), and were in late stages of development (tail-bud and tail-free) when collected, suggesting a downbay origin. Naked goby eggs have not been taken in the area. The naked goby attaches its eggs to oyster and clam during spawning (Nelson, 1928). The adhesive nature of the egg and the historic lack of suitable substrate preclude its occurrence in samples taken near Artificial 3.1-34 Island. Larvae and young of these three species occur in the area throughout the period and use it as a nursery. During October through December three species were taken. They were the marine spawned Atlantic croaker (Micropogon undulatus) and the estuarine spawned bay anchovy and northern pipefish. The specimen of bay anchovy and northern pipef ish which occurred during this period were products of earlier spawns. Although Atlantic croaker were taken in extremely low mean density per date (equal to or less than 0.001), this period typically represents their period of maximum abundance. The Atlantic croaker spawns offshore from September through January (Hildebrand and Cable, 1930). Larvae and young are subsequently transported up the estuary and occur in the area throughout the period. 3.1-35 * * * * * * * * * ** *

  • * * *
  • Station IPOl IP02 IP03 IP04 w I-' IPOS I w O'I IP06 IP07 IP08 IP09 IPlO IPll * * * * *
  • TABLE 3.1.2-1 ICHTHYOPLANKTON SAMPLING STATIONS Location Between buoys "3" and C "27" and approximately 23 m east of the mouth of Chesapeake and Delaware Canal. Between buoy N "B" and the northern tip of Artificial Island. Between buoys N "i',R" and R "4B" and equidistant from the shipping channel and New Jersey shore. Between buoys C "3R" and C "3B" and equidistant from the shipping channel and Reedy Island Dike. Between buoys R 11 48 11 and N "lOL" and 92 m west of Artificial Island. Between buoys R "4B" and N "lOL" and 46 m east of the shipping Between buoys R 11 2 11 and N "lOL" and equidistant from the shipping channel and the Delaware shore. Between buoys R "8Ln and R "6L" and 46 m west of the Hope Creek Jetty. Between buoys R "BL" and R "6L" and 46 m east of the shipping channel. Between buoys R "BL" and R "6L" and equidistant

'from the shipping channel and the Delaware shore. Between buoys R "6L" and R "4L" and equidistant from the shipping channel and the New Jersey shore. IA SALEM IP 1978

  • TABLE 3, l. 2-2 TOTAL

/\ND ANNUAL MEAN DENSI.TY OF ICHTHYOPLJ\NKTON DEPTH SUP FACE 1'11DDEPTH ROT TOM TOTAL :; 0. OF St."f'LES 168 VOL. f!LTHED CM3) 14.312.2 47 168 3,519.8 11,ds.o 3113 29r567.0 NUM8ER DEl-;SIJY Nl)l*'llE P TY llll:-l'HR DEllSITY NU>'SER TOTAL 2r41>4 .17 2 1,286 .565 9,914 .845 13r664 .462 TOTAL

26. 85;> 1.876 4,677 1.329 17r378 1. 4!!1 48.907 1.654

'r 0 JNG 185

  • U1.S 42 .012 Y7 .008 322 .011 E GS S: U *.J UIT J f J h;; LE Fl SH 4 A L;jS P' p. -. ,, l TC" I LL I 2,443 .171
  • 1r284 .365 9,1397 .843 4 .. 1 13r624 .461 1
  • 1
  • E "'. u"' I "t *, 1 JI..\ SPP.
  • 7 .001 !!
  • w
  • U ICA**A *4 ' 2
  • 6 f-' *" .

10 .001 I c. 5 1 w T. 1

  • 2 .001 5
  • 1 " 17
  • I),) 1 2 1 * -..J LA'-*, t. t: !.! *,I D t 1. I I f I LE FISH 67 .uus 2
  • 69 .0Ll3 A LOS/,

21 .1101

  • 8 .001 30
  • U*J 1 .. I T ( H l l L l 2s,ou1 1.747 1 5 .001 3,417 .9 71 12r996 1.1U7 1
  • 16
  • 001 41,414 1. 4U1 32
  • u*J 1 s l
  • c. C tl .*: *.

I 1

  • SPP. 62 .()04 v:or:i:o*.

!:: SP,. s

  • 2 .001 118 .010 1 .,, 6 .001 1 182 .OJo 1ll
  • H. A'*f*JCAIA 52
  • ll04 "* SA*i-l!LIS 1 5 .001 1
  • 35 .003 'l .001 11 .001 88
  • u;J .s 21l .uu1 SC l i4 t I 0 l. E 1 1
  • c. ..-::. G :, LIS 718
  • 05tl 846 .240 3r14S .268 4,709 .159 i.1*, L UL.\ r 'JS 1
  • 1 D . U.0 .. i'>
  • 2
  • 3
  • SP. 4 4
  • G.

1161 .060 395 .11 2 91.!2 .084. 2'2.HI .016 s. T. MHULA rus .UU?. 1

  • 11 :oo3 54 .005 1 93
  • 003 IA SALEM IP 1978 * * * * * * * * * * * *
  • w ....... I w co * * * * * *
  • TABI,E 3. l. 2-2 CON1'INOED
  • *
  • DEPTH YOU,G: A. ROSIR*U A. MIJCNILLI

.. Mt,ID!* s.

c. RU.>LIS L.

M. U'OUL*IUS G. bU>C I s. AQuOSUo

  • a BELO* REPORTABLE UVEL SURfACl HNSllY 7 11 1 b4 .011 .001 24 1 2
  • 9 * *Jli3 9 1U .UU1 l9 .nos 40 1 1 3 1 TAA!.P. 3. l. 2-3 MEAN l'El'!'I'J"Y PER DATE OF TAKEN AT S1'ATIONS NORTH OF, Otl THE TRANSECT WES'r Of, AND S001'H OF SALEM BOTTOM TOl<L DEllSllY DENSITY .uo1 H .0 J1
  • 002 11<2 .U*Jt, 1 .. Oll1 tll
  • L) 1 .004 OATt LOCAl!ON NO. Of SAL .. WAfLiE (PPT) TE"'-P .. (Cl VOL. f!LltREO <*3l TOTAL TOTAL LARVAE TOTAL EGG>: UN!OEMllf!AaLE FISH H. SUAllLIS H. AHlRICANA H. SAXAJIL!S AHMODY!tS SP.

NORTH 9 o.o-O.G 5.1-6.U 369.6 .ous .oos J.ll 22178 "tSI SOIJIH !OHL ,. 32 1.u-l.U 3.0-6.0 u.o-6.0 4.3-5.2 4.0-4.9 4.0-6.0 8l9.4 651.6 1,oso.o .002 .001 .005 .012 .OUd .002 .001 .iluS .Ou8 04120178

  • ES I SOUTH IOIAL 14 9 32 2.U-9.J 4 .ll-o.O 7.5-9.U 2.u-9.0 lU.d-11.2 11.U-11.3 10.0-11.0 IJ.d-11.3
  • 71.o 1,201.* ..i11.o 219d4.2 .014 .uo* .002 .OU6 .. 011 \ .003 .005 .001 .001 .DUI .002 ,001
  • 011 .OJ4 .002 .006 .008 .002 .1JU2 .002 .uo1 .uu1 .002 .001 .uu1 .001 .uu1 IA SALEH IP 1978 * * *
  • w f-' I w \.0 DAH LOCATJOI<

'10. Of SA'1PLES SAL. RA I< GE (PP f ) TE.P. (CJ VCL. (X3) TOTAL EGGS TOTAL TOTAL YULJ'IG EGGS: FISH. nosh SP?. A * >* ! 1 C ** 1 L LI SPP. /'1.. A ... EI< 1 CA A FlSH A * ;, I T C H I l l l CY Pd :,J E .'*' E:Y Y I *.it '11 0 I fl. 5 PP. Si='P. f.t"JCA*,A ....: .. S*X*lll!S

c. RcGAL!S P. c .*!Q '. J s G. 8USCI s.

A. i!tiSTHATA S. C. lltbALIS S. 1.0:-2.0 14.7-15.1 860.0 .ous .051

  • uo 1
  • 001 .uu1 .002 .l)IJ6 .!.J09
  • ll01 .uo2 .U15
  • 01 7 .001
  • BELUn REP0kTA8LE LEVEL * *
  • 05117178 wEST sourn 3.0-3.0 14.5-14.tl 1,101.2 * .aos .J11
  • Oll 1
  • ilO 1 .J04
  • J01
  • tl07 .JLJ5 9 3.0-6.U 808.5 .UU1 .006 .ou1 .OOl .002 .UU1 * 'rABLE 3 .1. 2-3 CONTINUED TOTAL 32 1.0-6.0 14.5-15.4*

21/69.7

  • Oll'* * .oa * .001 * * " .002 .002 .UU3 .001 .008 .007 * *
  • 06/15176 NORT!l WEST SOUTH 9 13 9 o.n-3.0 o.o-1.5 1.0-6.0 19.8-22.0 20.8-21.4 20.0-20.11 ll66.1 861.6 950.9 .009 .2u3 .150 1.016 5.165 .002 .uu2 .007 .203 .002 .002 .070 .U2U .oo.s
  • Ol1
  • 5 34 2.954 .029 .UO!:! .003 .016 .007 .002 .007 .045 .022
  • llUS . .001 .006 .365 2.220
  • 001 .001 .002 .006 .001
  • 001 .001 .OU1 .uo1 *
  • TOT Al 31 o.o-6.0 19.B-22.0 2r67!:!,6

.075 2.209 .001 .074 .001 .023 .007 1. 220

  • 012 .001 .008 .OtJ2 .ua
  • Uu2
  • 9LJ 7
  • 001 .003 * * <t *
  • IA SALEM IP 1978 * * * * ----_ __J
  • * * * * *
  • TABLE 3.1.2-3 CONTINUED
  • * * * *
  • OAH 1)7/27178 LOCAT NORTH SOUTH NO. Of 9 14 9 SAL. (PP I) s.o-7.0 5.5-7.5 s.0-10.0 RANGE (C} U.0*27.5 26.5-28.0 .o VOL. FIL TEilED ('13) 634.9 838.8 512.8 TOTAL E<.G S .797 .577 * \lSO TOT AL LARVAE 1.706 5.533 3. 0'64 TOT Al YOUNG .123 .006 w EGGS: I-' A. HITCH!LLI

.794 .377 .948 I 'IE'llOIA .i::. SPP. .003 .002 I-' "* 1 TCH ILL! 1. SSb 5.2S6 2.638 SP?, ,UU3

  • J 7 2 .021 c.

.036 .043 .078 G. ciOSCI .U93 .166 * .l 22 T. MACULATUS .017 .017 .004 YOUP-4(,: A. T(H!LLI .123 .006 s. Fuscus c - G. SOSCl * = REPORP.BLE LEVEL * * * *

  • Tl\BLE 3.1,2-3 CONTINUED TOTAL 32 s.0-10.0 2s.s-211.o 1,986.5 .659 3.672 .041 .657 .002
  • 0.3 7 .usu .1d3 .014 .041
  • NORTH 9 3.0-7.0 25 .4-27 .6 716. 4 .001 .842 .oso .ou1 .677 .U14 .007 .124
  • 020 .046 .oo.s' .ou1
  • 08/10/78 WEST SOUTH TOTAL 14 9 32 4.5-s.o 5.0-6,0 3.0-7.0 26.2-27.6 26.6-27.0 25.4-27.6 7 .6 798.7 2141>2.7 .284 .146 .158 .911 1 .159
  • 9 71 .oo.5 .001 .016 .284 .146 .158 .816 1.039 .848 .011! .006 .013 .01)7
  • 001 .oos
  • CJ59 .110 .094 .010 .003 .010 .001 .001 .014 .001 .uU1 * .001
  • 001 lA SALEM IP 1978 * * * *
  • * * * *
  • DATE :J!l/31/78 LOC.HlO'<

NORTH wE 5 T SOUTH NO. Of SAMPLES 9 14 9 SAL. RANGE (PPTl 4.0-6.5 6.5-9.0 7.5-10.0 (cl 27.1-28.0 26.l-27 .1 26.1-26.5 VOL. fllTERED ( 113) 810.3 918.1 733.1 TOT AL E:uGS .002 .039 .014 TOTAL l Ail VAi: .094 .015 .057 TOTAL .009 .001 .004 w EGGS: ..... A. 1-il lCHlLLl .002

  • 039 .014 I ii::. LAROE: N A. MITCr<llll

.091 .009 .055 5 Cl A E 1,J JAE G. ti.:, s CI .uu2

  • OU 7 .OU3 A. -'lTCHILLl .uu7 . s. Fuse us .003 c. REuALlS .001 .001
  • 001 * ;

REPORTABLE LEVEL *

  • TABLE 3.1.2-3 CONTINUED TOTAL 32 NOil TH 9 *
  • 09/13/78 WEST SOUJ:H 14 9 4.U-10.0 3.0-10.5 . 5 .o-5.5 l.O-9.0 26.1-28.0 23.0-25.8 24.2-26.4 23.0-24.3 21461.5 810.) 846.7 84/:\. 0 .020 .001 .002 .004 .U54 .037 .038 .018 .004 .035 .outs .001 .020 .001 .002 .004 .050 .U35 .035 .018 .001 .U04 .002 .001

.052 .01)4 .001 .002 .005 "001 .001 * , . *

  • T01Al 32 3.0aJQ.5 23.0-2<'>.4
  • Uli2
  • 031 .014 .002 .Ll29 * .Ou! .012 .003 IA SALEH IP 1978 *
  • w I-' I '"" w DUE LOCATION NO. OF SA*V.PLf:S SAL.

Gt (PP T ) (Cl VOL. flLTEAEO (M3) TOTAL EGGS TOTAL TOTAL A. Ml !CHILLI 'I. lF<DULATUS 'JOUtlG: A. Ml TL><llLl S. hH,lLIS HTE .OCATIOr; OF SAWLES ;AL. RA:.GE ( PPT l I t P

  • R A 'I.:; f: ( C J flLTEAED TOTAL EGGS TOT Al LARVAE YOUNG:
s. Fu!>Cus u:-fl)ULATUS NORTH 7 S.5-6.0 14.U-14.1 602.1 .ous
  • 022 .00.3 .002 .022 NORTti 9 s.u-6.0 11.s-10.s 640.9 .009 .(11)9 * =

REPORTABLE: LfVEL * *

  • l;J/26/78 WEST SOUTH s.0-10.u 14.0*14.U 9B1.4 * :Jtl1 .001 9 9.5-12.0 13.5-14.0 879.2 .011 * :J11 11/c?1/78 wf:Sr SOUTti 6.0* 8.U 10.2-Tl.8

.748.0 *

  • OIJ 7
  • 004 .U1l1 * :Jli 1 5 7.U-9.0 10.s-11.0 430.3 .005 .005
  • Tl\BLE 3 .1. 2-3 CONTINUED TOTAL SU 5.5-12.0 13.5-14.1 2,462.l

.006 .uos " .OU5 * ,T 0 TA L 28 I s.o-9.0 9;5-11.B 1,819.2 .007

  • 006
  • UI) 1 .UUI
  • 10/27/78 NOR TH. WEST SOUTH 2 2.0-2.0 * -14.0-14.8

-125.1 o.o o.o .008 .024 .008 .024 NORTH .. -o.o

  • 11122/78 WEST SOUTH . -o.o 4 11 * .0-11.0 11.0-11.s 419.1 .002 .002
  • TUT AL 2 2.0-2.0 14.0-14,8 12s.1 .Ou8 .024 .008 .U24 TOTAL 4 * -11.0 * -11.s 4111.1 .002 JJ\ SALEM IP 1978 * * * *
  • w ........ I """ """ * * * * * *
  • TABLE 3.1.2-4 .!i.N:tmJ\.J,.

MF,AN DENSITY OF ICHTll.Y.OPLANKTON TAKEN l;T STATIONS NORTH OF, ON THE TRANSECT WEST OF, AND SOUTH OF SALEM * *

  • LOCATIO'I ljO, UF SAL.

j E I PPI l TEMP, (Cl VOL, Fll TERED (Mj) TOTAL bGS TOTAL LAilvAE TOTAL ru,nG EGGS: urd Dtl*T IF Fl SH ALOS.\ A, ILL! 'IE **.c.;JS/ "1. A" i: I C SAAJ T !LIS c. ;, t.G* LIS T. :>'J(l*LA U Id Di: IT I F l A -3 LE F 1 St< ALOSA St-i', A, M1 T(rl!Lll CY Pw l r, ! ll -4 l: 0 I :; I u,; IC T >' R l *.US c. c.1*** *'1:;; 1

  • E'<

SPP 0 I"\, M, $A*.\T!Ll5 S C l A E :d ;> A E C. REGALIS !-1. l!roDULA fJS P. C*llo!S ltS G. f>tl)k TH 1 lld o.u-o.5 5.1-28.0 I'" 7 IJIJ

  • 7 .074 .U2o " .o 72 * * .llUl .001 .Otl5 ,ldd .003 *
  • llf17 .uo1 , l)l] l .Ull2
  • IJ 1 3 .. .024 w E: ST 107 ll.ll-9.5 4.3-28.0 1
  • 159 .ooo * .226 * .oos * * '>198 .ou1 k * .Uu2 .ulll * .oi;o "' * .US9 SOUTH 1Ud 1.0-11.s 4.1.' -21.0 1.091 3.288 .003
  • 1.091 * ..
  • 2.75.S .003 * * * .386 * * .14 2 TOTAL 31!.I 0.0-11.s 4.0,.. 2o.U 29,Sot.ll IA SAL£M IP 1978 .462 1.054
  • lr 11 * *
  • 4 61 * .uu1 * .o ()2 .ou1 1.4U1
  • llll 1 .c:>o * [J [l 5
  • uu 1 .o 7o *
  • w I-' I .r.:. Ul TABLE 3.1.2-4 CONTINUED

*----*-¢--------------------------------¥-------------------------------------------------------------------------------

LOCATll'll lllOR TH S. AOu\JSLiS

r. .ll05 A.

.001 . Ao '.-.lTChlLLl .019 >l. i: :,i 0 l A s.

  • c. "'t 1:1 J. L 15 .oo, L. ;r. H, I "I. U '<;:; uL S G. t'u>Cl le s.
  • * * *
  • WEST .ll05 .. .001 .Olli
  • Ill.Li * * * *
  • SOUTH * * .005 .001 .001 * .001 .001 *
  • IA SALEM IP 1978
  • TOTAL * .Ou3 .OCJ1 .001> * .001 .Ou.S * * * * *
  • w .. *
  • LOCAT 10** *10. OF SkL. RAr,C,E CPPTl HI.\?.

CC l VOL. flLTERtO TOTAL E.i>GS TOTAL YO<.l'IG [(,(,S: FISH ALUSA Sf'P. A. SPP. :-1 * '1. SU*TILIS T. l'HULAIUS LARVA!:: UNIDENTIFIABLE FISH ALOSA >f'>>. A. :-:rJtnlLLI CY PR l l Ll.:. E. SPP. 'IOl<Or.i: SPP. 'I. A*t*ICA'JA M. SAHllLlS SC I Ac Id 0 A E C. Rf.(,ALIS P. Ck[,:*,1; A'<'<ODY HS SP. G. C.ui. Cl S. AQtJOSUS T. ;<ACULAIUS

  • *
  • REPORTABLE LEVEL * * *
  • TI,BLE 3 .1. 2-5 A?Tf'Ul\L l"EMI rr::?lSI'.::.'.

Ol' ICflTHYO?LANKTON TAKEU AT EASTERN, MID-RIVER, AND WESTERN STATIONS EAST 60 0.0-11.0 4.5-27.6 4,9.Sl.3 .19U 1 .2 .SO. .013 .190 " .749 * .002 * .001 .001 .399 * .073 .003 155 O.U-11.0 4.0-28.1) 10,(Joll.9 .69/ 1. 11 u .O:J4 * .691> " .006

  • 1._41l6 .001 *
  • IJ02 .002 * *
  • 1!l4 " * .104 .004
  • WEST 96 o.o-9.5 4.6-27.9 71701.l 2.00i' .006 * .n3 * *
  • Oll1 1.886 * .013 .001 .ou:s .001 .063 " * .036 * .003 * ** TOHL 311 0.0-11.0 i..o -28.0 23,387.9 1. 707 .U07 .4 3 2 * .003 1.40 .uO 1 .Ooo .189 *
  • .003 *IA SALEM IP 1978
  • w I-' I -J
  • TADLE 3.1.2-5 CONTINUED

LOCAT!CJI< EAST MID-RIVER WEST TOTAL rour,G ! A_ .001 *

  • 001 .001 ,.;l TC*ILLI .003
  • oo 1 .002 .Ou2 ... :"".ttdld,,, *
  • s. F 11,;c us .001
  • UU1 * .001 c. .Olli! .002 .003 0 0(13 L.
  • * ,., .

rus *

  • G.
  • * *
  • s. A.i.ivSJS
  • * = St LUA Qt;PORTA8LE IA SALEM IP 1978 * * * * * * .* * * * *
  • * * * * * * * * * * *
  • TABLE 3.1.2-6 ANNUAL ME1\N DENSITY PEP. STATION OF ICHT!lYOPLANKTON STATIU'*

IP02 SA*PLEO SURFACE MIO f.JOT TOM T01 AL SURFACE MIO BOTTO'I TOTAL kO. 0 F 1 2 :) 12 24 12 0 12 24 VOL. FlLIE-<ED I'-3 l 1.137.!I l 32. ll 1,ullJ.o 1,15::>.2 972.7 2,122.9 TOTH E.; o S .024 .057 .OH

  • 0 I 7

.018 TOTAL LA*vAE 1.089 .753

  • 9 5 7 .299 .2J9
  • 2 '>tl TOTAL 10u"G .111
  • CJD 1 .068 .007 .016 .011 EGGS: UlilDE**TlflA..JLE FISH .002
  • 001 A*

ILL! .020 .056 .U34 .013 .011 .015 SPP. .on .001 M. Atwl(A'*A

  • 001
  • 001 "\. SAIAT !Lb .003 .001 w .002 .002 .001 .001 I-' LARv*E: I ""' 00 IA':!LE FISH .001
  • oo 1 .003 .002 ALOSA

.011 .004 .008 .006 .O!ll .. (1(1:.. A. **:! TC<<lLLl 1.011 .oas .883 .263 .118 .196 CYPtdr.liHE .002 .Olll

  • 006
  • 011 .f1i"d c. Co:-. '*it ;;t ')0!'1 I .001 "

<E'il01A SPP. .01 ll .019 .uni .003 .OQS .004

PP. .Oll1 .Oll1 .005 *
l*) 1

.010 .ULi7 .009 .009

  • 011 .010 "'* S4>*TIL!S

.002

  • 5
  • 0112 .003 .003 -0*13 c. ;; t l>
  • L l

.015

  • llll 7 .001
  • 01 7 .. uos !ol. u-.ouLA rus
  • llJ 1 "

Tl:S SP. .001 .. G.

  • IJ 3 3 .018 .027
  • tJO 3 .035 .017 T.

.002

  • Uu 1 .001 .002 .001 YOU,,G: A. ROS

.001

  • Ill) 1 A. >;JTCH!LLl
  • 111 .061 .007 .011 .OO'l s. FUSCUS .001 " c.

.003 .OJ1 G. BOSCl .001 ;, * = r:iELU..: LEVEL IA SALEM IP 197$ w

  • STAT!u:; NO. OF VOL.

TOTAL E:i.J.jS TOTAL .yl)J% EGGS: FISH A. MI IC"ILLI A* t k l C .\'*A 1'1. SAX.\! !LIS LARVAE: IAaLE FISH SP?. A. ;*JTCl"llll (yp,;j:,10*£ \I' i,); u:. t. ;:i ;:* -\l!... :.. .. E 1 C .1. .l,j .l l:. T ( L l S C. G. r *. luS A. ;;,;,J,HT> .&.. 111 IC"1LLI s. Fu,cu; C. ilh.\LI; SURFACE 12 1,0B.7

  • 144 .651 .n 11 .001 .142 .001 .001 .621
  • lllll .002 :002 .0[]4
  • O 1 B .002 .011 = 8ELllH LEVEL * *
  • I P\13 MIO 12 ll 7 g .1 .253 .436
  • 031
  • 253
  • 3 3<. .;JO! .<J02 .:ns * :J 5 8
  • tlJ.i .002 .0211 su r ror* 12 997.4 .086 .335 .018 .086
  • 0(! 1 .269 .001
  • 007 .OU1 .OU3 .112 4 .023 .006 .001 .004
  • 013
  • T1\BLE 3 .1. 2-6 CONTINUED 3b 2r909.2 .1 5 7 .4l8 .U1v I< .1 56 .DI! 1 .414 .001 .003
  • O(l 1
  • lltl2 .002
  • 02!J

.004 * .005 .01)1 .013 *

  • SURFACE 12 1.107.3
  • 006' .456 .016 .005 .001 .001 .003 .421
  • OU 1
  • 00 3 .001
  • ll1 0
  • 002 .002
  • Oil8 .OU6 .002 .008 .006
  • MIO 0 IP04
  • BOTTO'l 12 770. 7 .100 .231 .004 .099 .001 .Olll .135
  • u:l3
  • lltl 5 .UJ1 .008 .OJ4 .u32 .li 32 .009 .001 .001
  • 001 TOTAL 1r878.0 .045 .364 -011 .043 .001
  • llG 1 * .on2 .001 -304 .0112 .O<l4 .G 1 l1 .O<l9 .003 .014 .OfJ7 .002 .oos .001 .O*J4 . IA SALEM IP 1978 * * *
  • * * * * * * * * * *
  • Tl\BLE 3.1.2-6 CONTINUED

STAT IP05 IP06 DEPTH SA'.PLED SURFACE MlD BOTTOM T \l TA L SURFACE "110 lOTAL *10. uF SA'<PLES 24 0 24 4!l 24 23 24 71 VOL. flllt'1EO ( 0!3 l 11495.2 11126.4 21021.6 118:l7.S 11668.2 11494.1 l:_ _,.9()9 .8

  • 337 .841
  • 553 .001 .020 .240 .079 TOTAL Llul VA E .976 .601 .815 .581
  • 6 71 .7H .657 TOTAL rnJ'lG .005 .ll10 .OU7 .001 .007 .u04 .OU4 EGGS: ALOSA SP?. .001
  • A. "'I !CHILLI .334 .!lH. .549 .019 .240 .078 .uOl * "

SPP. .001 .U04 .Oll2 _... .. .001 .OlJ2

  • OU2 w M. P<AT!Ll> .001 .001 ,. T. :*ACuLA IUS .001 " I-' I U1 LARVAE: 0 urdoE:*T IF IA3LE HSH .033 .001 .012 ALOSI

.001 .001 .oo 1 .001 .001

  • A. "llCH!LLI
  • is 1 5 .471 .o67 .429 .428

.. 4 7a C y P k 11.r iJ :i E .U1H .UU2 .u02 .001 "

  • Oil2 .uu1 SPP.
  • lhl1
  • Ou4
  • lllU .oo:s .uo1 .003
  • O:J2 'I. ;.; "t l ( .\ 'l A * .0(;4 .Uu6 .001
  • 001* .003
  • 001 M.

!LIS .un 1 .OlJ1

  • IJO l .001 SCr.>f:.:d0AE:
  • (II) 1
  • c. E G >o0 L 1:) .023
  • 0 3ll

.050 .193 .106

  • 11 5 P. UC1*IS .u01
  • SP.
  • 001 ,. G. BO>ll .120
  • 080
  • 1115 .060 .046 .027 T. P:ACuLATLJ5
  • llll1
  • UC* 7 .llll5 .004 .002 .001 A. R05TkA [A
  • 001 .002 .ou1 A. *II TCh!LLl * ()() 3
  • 0\12 .002 .002 .001 .001 s. Fu SC US
  • U01 .001 .on 1 .003 .001 c. RE:GALIS
  • 001 .Ull4
  • 005 .001 .002 .005
  • 002 L.
  • ou,
  • U I* v U l AT US .001 ,.. * =

LEVEL IA SALEM IP 1978

  • w I-' I U1 I-' TABLE 3.1.2-6 CONTINUED

g------------------------------------------------------------

OEPT1.1 5.A..,>'LEO Nu. Of VJL. tM3l TOPL A. MITC*llLLl " sn:.r 1LIS A. >I. C. S P. A"""'(i)1Jt.:) SP. G. T *. *:*cuLHUS YOU'-G: A. A.

s. Fu :"J l L' '.i '-*

G.

s.
  • *
  • SURFACE 24 11994.2
  • l)*,12 2.684 .002
  • 091 * \)l) 1 2.561 .004 .002 .001 .05o
  • 001 .OStl .003 .ou1
  • Ui)1 IP07 MID a
  • BOTTOM 24 11615.5 .326 1.379 .013 .325 .Oll 1 1.214
  • ll 41
  • uu 1
  • uo 1 .uu1 0 0.32 .ou2 .001 .001
  • uu 1 .010 .Ou1
  • TOTH 4ts 31609.7 .1.9 7 2 .1 OU .01.17 .196
  • Oll 1 1.958 .lJ21 .Ull1 .uu1 .U7U * * .046 .Oll2
  • 01l 1 .Ou 1 .001 .004
  • IP08 SURFACE MID 12 0 11073.1 .212 1.815 .003 .212 1.6H .001 .117 .001 .063 .002 ..001 * **
  • 1 i! 949.0 .267 2.874 .007 .267
  • 778
  • O:l1 1.880 .211 .004 .002 .uo1 .00.5 TOTAL 24 21ou.1 .237 2.312 .ODS .237 1.231 .001 .* 945 * .133 .002 .002 .001 .001 .001
  • IA SALEM lP 1978 * * *
  • * * * *
  • L __ *
  • TABLE 3, l. 2-6 CONTINUED
  • * * * * *
  • w f-' I lJ1 w TABLE 3.1.2-6 CONTINUED SP 11 Ori DoPTI 0 * ,H o1

> VOL. FILTERED TOPL A. 5PP. C. A. I .LLI F. td:.Tt".'CLlluS SPP. !"' ;., **I:..( 1 c .! 'l .\ C.. ME ..:i IL l :,, G. ,1 l T. A. B. lv.;:..*,.h1.,; A * .o'llColLLl S. FuSCLJS C.

  • 1P11 SURFACE MlO 12 J 11145.4 .958 2.682 .003 .957
  • OU 1 2.595 .ll52
  • ll s 5 .002
  • Olll
  • BUTT OM 12 1,04U.2 2.242 3.429 .UU6 2.241 .001 2.se2 .uus .2U9 * !>27 .uu7
  • Oll2
  • 001
  • 001 .ou2
  • TOTAL 24
1. 5611 3.03!! .U04 1. 56d .001 2.732 .uu2 .110 .1d4 .OU3 .OU2
  • Ull 1 ,.. .uo1 IA SALEM IP 1978 * * * * * * * *
  • * * * * * * * * * * * 'fAUL1'; 3, l. 2-7 MEAN DENSITY PFR DA':.'E OF ICH':.'HYOPLANK'i'O!I TAKEN AT EASTERN, MID-RIVER, AND WES'J.'ERN STATIONS DA TE 03/2Ui'8 04/20/78 LOCATION EAST wEST TOTAL EAST liE ST TOT I< L NO. Of SAMPLES 9 9 8 26 9 9 8 20 SAL.

<PPT> o.o-4.0 2.0-4.0 o.o-4.0 o.u-4.0 3.5-9.G 5.0-8.0 3.5-4.5 3.S-9. Ll TE'IP. RANGE (() 4.3-5.5 4.0-4.6 4.6-5.o 4.0-5.6 10.8-11.1 10.9-11.0 11.0-11.:5 10.<l-11.3 VOL. flLTEilED (H3) 552.8 538.7 4 71. 8 11563.5 656.8 890.0 7:38.1 2,?84.Q TOTAL EGGS

  • llLl.) .004 * (1117 .Gus TOTH LARVAE .002* .001 .01)5 .001 *. :. u i
  • 0(;3 TOTAL YOU I< ii .011 .008 .oo* .003 .001 EGGS: w UNlDENTlflAtlLE FISH

'4. SAXA Till S .Lld2 .,004 .1 .. J7

  • I lAilVAE: (JI ""' "* AMERICANA
  • l,l" 1 H. SAxA Ill.ls .OU.i .001 -001 AMMOD¥TES SP. .002 .001 .002 .001
  • i)U 1 YOUNG: A. ROSTkAU .011 .008 .006 .Oll3
  • .. BELO'" REPORTABLE IJ'.. SALEH IP r978 w f--' I Ul Ul
  • 3.1.2-7 COI-l'rINUED (r ,, TE. 05117178 (16/15178 TlOr< EAST MlDRIVER wE ST TOTAL EAST MIDR!vrn wEST TOTAL NO. OF 9 9 8 26 9 8 8 25 S L. R (P?Ti. 2.0-4.0 3.o-5.5 1.u-4.0 1 .!J-5.5 o.o-(). 5 1.0-6. () o.o-3.5 o.o-6.0 TEl'P. RA '4._jf lC> *14.5-14.8 14.5-14.7 14.5-14.t!

14.5-14.!I 21.0-21.4 20.0-21.4 l(;.2-i?l .4 2:).0-21.4 VOL. f!LTE.<EO Ul5) 796.6 754.0 582.5 21133.1 646.1 736.5, 7;; 7. 'J TOT>\L Ei..1G $ .008 .005 .004 .oos .255 .1j 14 .096 TOTAL LARVAE .009 .oos .045 .017 3.360 2.934 1

  • 5 3u 2. sc;.o TOTAL YOUNG .005 .001
  • lilll .Ou2 EGGS: UNIDErdlflABLE FI SH .002 "' ALOSA

.001 A. 1-'!TCHILLl .002 .002 .255

  • 1114 .095

.001

  • E >\a.; AS I >\ t >Jl DI 4 SPP. .005 .OU1 1-1.

.005 .002 .002 LARVAE: U'!I OE:;r l f I r: ! SH .005 .001

  • 081
  • fJ29 SP?. .001 .002 * (JO 1
  • 006 .001
  • A. ><lTC><!Lll

.687 2.178 1.168 1.H5 C I P R l '* I u :. E .1)1 2 .001 .004 .1)110 .on5

  • OU 1 "E ., d' :. § I E" ! DI l\ SPP. .009 .005
  • OU1
  • 0<15 f;Jfi Qt; t SPP. .005 * (101
  • 01) .Uu1 .Uul r.i. A :.it i\ IC l. f°' t. .004 .004 .019 .ll08 .029
  • 01)4 .()16 .016 .... SA*;!ILlS

.005 .014 .006

  • fJO .Ull1 .*:)(11 c.

2.6ll} .659

  • 331 1.149 P.

.002 .(JU1

  • 0(11 G. a0 s ct .01)3 .O**o .003 s. .u.?1
  • YOUNG: ,\. QOSTilUA .. i"il' 1
  • s. Fuscu:; .001
  • c.

.002

  • s. AQUOSJS .002 * " .. SELO.i TA ti LE LEHL IA SALEM IP 1978 * * * * * * * * * * * *
  • w f-' I Ul O"I * * * * * ** TJ1BLE 3 .1. 2-7 CONTINUED
  • * * * * ---------------------------*-------------------------------------------------------------------------------------------------------

DA TE LOCA T lON NO. Of SAL. RAl*GE (i'PT> TEMP. 1H%E (C) VOL. FlLfEREO (M3) TOTAL EllGS TOT.\L LA.RvAE EGGS: A.. MITCH!LLI SPP. T. MHUL4 rus LARvH: UNlDEhTIFIABLE FISH A. HITCtt!Lll SPP. C. P. G. iiOSCl T. IHClJLHUS YOUtlG: A. l'lilCH!lLl ""'-:. i ;J l S. FuSCuS C. Rf(jALJ:) L. llt.Ttlu.lUS G. BOSCl EAST 9 2.0-5.0 24.ll-25.9 609.3 .235 2.857 .061 .230 .005 2.378 .002 .199 .279

  • ll05 .054 .002
  • BEL04 NEPORlASLE LEVEL 06/28/78 MlDR!VEH \JEST 3.0-5.0 25.1-27.0 571.8 6.852 3.655
  • i'.112 6.852 .002 3. 3()0 .003 .103 .247 .012 8 2.0-4.5 25.0-20.U 560.4 .728 2.161 .023 .728 1. 91 3 .020 .u61t .002 .162 .002
  • 021 TOTAL 2o 2.0-24.0-27.0 1,141.S 2.566 2.895 .0.33 2.564 .002 .1Jl)1 2. 5 .I I .Oll8 .124 .(J01
  • 2.31 .llUl .uu2 .030 .001 9 3.ll-5.0 660.4 2.229 3.49\ .Uc! 3 2.227
  • 002

.002 .312

  • 3 21
  • ll 11 .111)6 .O<H .014 07112/78 MI DRIVER 9 4.0-5.0 25.2-24.5 7 86 .1 1.395 14.127 .011 1.395 11.651
  • Oil 'i 1.679 .767 .u20 * [JI) s .U'.l1
  • Ol.14 .001 ?.5-6.0 ? L4-26.0 7S2.6 10.093 1.603 10.534
  • O*J4 .246 .093 .014 l OTAL !.o 2, ;, _I) 2 L2-?.i>.fJ 2,179.1 1
  • 71 8 9. 81 i' ,
  • 71 7 8 .. t'i .uu5 .1b4
  • li 1; .. (J._ll
  • ll 11 Ih SALEH IP' 1978
  • w
  • LOCUlO>i ti 0. 0 F SA..; PL ES SAL. RAtlGE <PPT) TEMP.

CC> VOL. FILTERED (N3) TOTAL EGGS TOTAL LARVAE TOTAL EGGS: A. f<l TCtlILLI SPP. A. :-II !CHILLI SPP. C. r.lG.\LIS G. eo:;c1 T. !US A. Ml TC><!LLI s. FUSCus* C. HbALlS G. 80SCI EAST 9 6.5-7.5 27.0*28. 0 434.6 1.102 Z.358 .021 1.102 1.914 .007 .ass .368 .014 .021

  • REPORTABLE LEVEL *
  • 07127178 MIORlVER WEST 9 8 s.u-8.0 s.o-7.0 26.7*2'.0 26.4*27.5 462.2 591.4 1. 348 .210 .543 7.689 .003 1. 348
  • 2 l18 .OU2
  • 340 7.369 .002 .110 .058 .* 059 .129 .134
  • il 15 .017 .003 *
  • TABLE 3.1.2-7 CONTINUED TOTAL 26 5.0-tl.O 26.4-28.0 1,sos.2 .831 3.868 .007 .H30
  • U() 1 3.550 .046 .058 .200 .U15 .007
  • OB/10/78.

EAST WEST TOTAL 9 9 8 26 .s. o-5.0 5.0-6.0 3. ,,_ 6.0 3.0* 6.0 27.IJ-27.6 26.2-26.7 26.3*27.U 26.l-27.6 64!l.7 69n*. l 768.1 2,J(J7.0 .432 .155

  • llfJS .H6 1
  • 41 7 .714
  • 89.S .996 .002 .001 .004
  • Ol12
  • 4.32 .155 * .;05 .1 tl6 1.255 .653 .811 .896 .011 .IJ2Y .014 .005 .010 .1 .. .i 1
  • 0115 .129 .039 .:.J44 .Ob9 .017 .012 .*.lU8 .012 .L01 * .002 .uo1 .Oll1 .001 * .001 .. IA SALEM IP 1978 * * * * * *
  • w I-' I U1 co * * * * *
  • TABLE 3 .1. 2-7 CONTINUED
  • * * *
  • DATE 08/31/78 LOCATION EAST MIDRillER WEST t;O. OF SOIPLES 9 9 8 S.l.L. ilA NuE IPPT> 6.0-9.5
s. u-9.5 TEMP. (C) 26.1-27.2 26.1-27.9 VOL. F (M5) 680.6 661.7 669.4 TOTAL EGGS .004 .048 .015 TOTAL LARVAE .026 .!lll6 .034 TOT4L

.003 .003 .ao1 EGGS: .I.. Ml TC*HLLJ .004 .ll48 .015

l. HITCHILLI

.()23 .on2 .028 G. bOSCI .OOl .oos .006 YOUNG: A. MI TCHILLI .001 s. fUSCUS .002 c. REG ALIS .003 .002 * .. BHO.i HPOR TABLE TO f AL 26 5.0-10.0 26.1-27.9 2.011.1 .ua .022 .002 .on .018 .004 * * .001 EAST 9 5.5 24.0*26.4 5d 7. 3 .014 .010 .01)9 .Oll2 .UtH .009 .002 il\i/13/ 78 9 s.s-9.U 24.li-14.5 11 .s. a .Oli6 * (J 2 4 .006 .006 .024 .006 1o EST IS 4.S-8.0 2.l.tl-25.U d6.8

  • tl02
  • 0.59
  • 019 .tJ02
  • 0)39
  • li1 7 .002 lO I 2o 4.;-9.n ,:> .l. (,*(/) .4
  • i)(, 3 .020
  • u 11 .ll!J3 * * :1111
  • llO 1 * (l(; 8
  • jU.l IA SALEH IP 1978 *
  • w I-' I Ul TABLE 3.l.2-7 CON'rINUED 0.1 TE LOCA TlOl1 (PPT> TE'IP. RA'iGE (Cl VOL. flLTE*EO (M3) TOTAL EGGS TOTAL TOTAL YUcJNG LARVAE: A. Ml TCHlllI YOUNG: A. MITC.,lLll S. fUSCUS M. UllOlJLA rus OAH LOCATION OF S .!IL. R t;G£ ( PPT) ( c > VOL. fll!EQED ( "3) TOTAL EGGS TOTAL YOJ,.,G "' " BELOo1
  • 10/26/78 EAST MIOR!VcR IJE ST 9 9 8 6.0-11.0 9.*s-12.0 5.5-12.0 13.8-14 .o 14.0-14.0 13.Y-14.1 717.5 672.ll

.001 .001

  • 01.2
  • 0µ*1 .001 * :101 .012 .001 11/22118 EAST Ml DRIVER WEST 2 9.0-10.0 11.0-11.1

--. 215.1 J.O o.o LEVEL *

  • TOTAL 26 s.s-12.0 13.8-14.1 2.073.6
  • IJO 5 * .oos TOTAL 2 9.0-10.0 11.0-11.1 215.1 *
  • EAST 7 6.0-8.D 9.5-11.8 341.1 .015 .015
  • 11/21/78 MlDRlVER wEST TOTAL 9 8 24 7.0-9.0 s.s-8.0 s.s-9 .'l 11.0-11.1 v.s-10.6 9.5-11.8 570.5 625.4 1,53<-.R .005 .003 .007 .002 .003
  • ous .ou2 .uu1 .002 .001 IA SALEM IP 1978 * * * *
  • * * * * * * * * * *
  • TABLE 3. l. 2-8 NUMBERS AND PERCENT VIABLE OF FISH EGGS SUMMARIZBD BY SPECIES, 1978 SURFACE MID DEPTH BOTTOM 'l\OT.!..L Mean Mean Mean No. of Percent Salinity No. of Percent No. of Percent Salinity No. of Percent Sillinity Date Eggs Viable (ppt) Eggs Viable Eggs Viable (ppt) Eggs Viable (ppt) Bay anchovy, Anchoa mitchilli May 17 1.0 1 o.o 2.0 1 0.0 1. 5 June 15 1 0.0 1. 8 198 32.8 2.9 199 33. 7 2. -1 June 22 250 2.8 3.6 424 6.4 3 ,968 15.9 3.7 4,642 14.2 3.5 July 12 1, 771 7.9 4.3 430 5.1 4,828 13.2 4.6 7,029 11. *l 4 .. 5 July 27 293 22.9 6.4 421 16.6 592 32.6 7. 0 () 1,306 25,. 2 6.7 hugust 10 127 22.0 5.1 6 o.o 260 9.2 5. <I 393 13.2 5.3 August 31 7.2 2 o.o 46 2.2 8.5 48 2.1 7.9 September 13 l o.o 7.0 l o.o 4 o.o 7.4 6 o.o 7.2 w Total 2,443 9.9 4.6 1,284 8.6 9,897 15.7 5.2 13,624 14.0 4.9 I-' Silver.sides, I Mernbras sp./Menidia spp. O'I 0 June 15 o.o 2 100.0 0.5 2 100.0 0.3 June 28 1 100.0 3.0 2 100.0 3.0 3 100.0 3.0 July 27 6.5 3 100.0 6.3 3 100.0 6.4 Total l loo.a 3.2 7 100.0 3.3 8 100.0 3. 2 White perch, Marone americana 17 4 16. 7 1. 7 2 o.o 2.0 6 8.3 1.8 Striped bass, Morone saxatilis April 20 10 o.o 4.3 2 o.o 5 0.0 4.6 17 o.o 4.4 Weakfish, C'tnoscion re9alis July 12 1 o.o 5.0 1 100.0 7.0 2 50 .. 0 7.0 Hogchoker, *rd.nectes maculatus July 12 1 100.0 s.o 5.0 l 100.0 5.0 IA IP 1978 TABLE 3.1.2-9 COMPARISON OF COl1BINED CA'rCH OF ICHTHYOPLANKTON TAKEN FROM 1971 THROUGH 1978 ------------------------------------------------------------------------------------------------------------------------------------1 9 71 1972 --------------------------------

PERCENT PERCE'IT SPEC HS N RANK OF TOTAL, IJ I c N RANK OF TOTAL NIC ------------------*----------------------------------------------------------------------------------------------------------------- A. ;.l!TCHJLLI 7 '741 1 82.3 11. 4 23 .705 1 87.0 26.9 G. *rn SC 1 632 2 6.7 (J.9 1,444 2 5.3 1.6 A LOS A SPP. 261l 3 2.8 0.4 188 8 0.7 0.2 B. Tr r<-' '1 'JU S 186 4 2.0 0.3 329 4 1.2 0.4 c. r< E (,Al IS 161:1 5 1. 8 0.2 .317 5 1. 2 0.3 .'*l .. Mf ID l .\ 95 6 1. 0 CJ .1 9 <0 .1 <0.1 s. FUSlUS 78 l U.8 0 .1 34 0.1 < 0 .1 'I t M tl R S I 1 D I A SPP. 39 8 0.4 <0.1 26 <0.1 (0 .1 A. 35 9 (). 4 <0.1 64 0.2 <0.1 T. i**ACULA IUS 31 10 0.3 <U.1 0 0 o M. 29 0 * .3 <0.1 155 9 0.5 0.2 w A. 25 [). 2 <ll .1 20 <O .1 <0.1 3. CHi<Y SURA 19 (). 2 <0.1 0 0 0 I-' M. u*.1lUL

  • TIJS 1 5 () .1 <0.1 0 u 0 I M. SAxATILIS 12 u .1 <0.1 210 6 0.8 0.2 O"\ FUl:DllLUS SPP. 6 (l) .1 <ll.1 346 3 1.3 0.4 I-' 10 SPP. 5 <U.1 <ll.1 202 7 0.7 0.2 "'* 8EiiYLL l'1A 4 <ll .1 <0.1 3 <O .1 <0.1 A.

4 <0.1 <0.1 110 10 0.4 0.1 L. X A1; I hJRtJS 2 <U.1 <0.1 24 <0.1 <0 .1 f. HE ru:; 1 <0.1 <(1.1 0 0 0 c. H l S 1 <0.1 <0.1 0 0 0 P. SALT*r-*rx 1 <0.1 <0.1 4 <0.1 <0.1 r. E. \. Ol:. S 1 <0 .1 <O .1 0 0 0 P. TR 1 1 <0.1 <0.1 0 0 0 H. >< U l HA l l S 0 0 0 25 <0.1 <0.1 ,., -MART !'HCA 0 0 u 8 <O .1 <0.1 P. A t R Jc A IJ us 0 0 0 5 <0.1 <0.1 !. t;<fitJLOSUS 0 0 0 1 <0.1 <0.1 s. AQll0SJS 0 0 0 1 <0.1 <0.1 P. FL.>vbCEl1S 0 0 ll 0 0 0 G. ACULt A rus u ll 0 o 0 0 D. tl'PED.JANUM 0 0 0 0 0 0 o. TA II 0 0 0 0 0 0 P. Dl:1JTA !LIS 0 0 0 0 0 0 E. 0 0 0 0 0 0 P. ;-i:.w J 1;us !) 0 0 0 0 0 CllJPEI DAE 0 0 0 0 0 0 CI P;; ltll DH 0 0 0 0 0 0 TOT AL 9'398 100.0 13.9 27,230 100.U 30.9 IA SALEM IP 1978 * * * * * * * * * * * * *

  • * * * * * * ** * * --* * * '.!'ABLE 3.1.2-9 CONTINUED 19 7.) 19 7 4 Pf:RCENT PERCENT SPECIES N RANK OF TOTAL N/M.3 N/C N RANK OF TOTAL ll/1*'3 1.1 c ------------------------------------------------------------------------------------------------------------------------------------

A. MITCfi!LLl 19,623 I 1 82.9 0.253 40.5 348,084 1 95.4 3.661 407.1 G. BOSCI 1, 7 7 6 2 7.5 0.02.3 3.7 141094 2 .5. 9 16.5 ALOSA 17 <0.1 <iJ. U01 <D.1 34 < (j" 1 <G.001 <0.1 i3. TYRAl<-'IUS 11 <0.1 <(J. 1101 <O. *1 158 9 <G,. 1 u. Oil2 {). 2 c. RtC.ALIS 146 6 0. 6 0.002 0. -3 835 3 0.2 O.UJ9 1. 0 M. 48 0.2 <0. 00*1 0.1 1 3 <0.1 <0. 001 <0.1 s. F lJ SC ll S 7Cl 9 0.3 <U.001 0.1 177 8 <D.1 D.0()2 0.2 SPP. ;16 7 0.4 o. LltJ1 0.2 9 <0.1 <0 .001 <U.1 Abd!llALIS 3 <D.1 <U.Uu1 <0.1 D 0 0 0 T.

11) <0.1 <D."D01 <0.1 73 <0.1 0.001 0.1 !1. A*;Ek!(AIH B 8 0.3 fl.001 0.2 333 4 0.1 0.004 0.4 A. PScuD:JHAREf;GUS 1 <0.1 <D.001 <0.1 0 0 0 0 w a. CHRYSLIH 2 <0.1 <0. 001 <0.1 0 0 D 0 M. u:.uuLA rus 326 4 1. 4 0.004 0.7 180 7 0.1 0. 002 0.2 ....... M.

52 D.2 <D.001 0.1 196 6 D.1 0.002 0.2 I FUl;DULUS S?P. ,, 14is 3 4.8 0. (J 15 2.4 4 <0.1 <Ll.001 <0.1 0\ MOROl<E S??. 168 5 0.7 ll. 002 D.3 2 <U.1 <U. 001 .:0.1 N 11. 8ecRYLLINA 0 0 0 lJ 3 <0.1 <U.001 <0.1 A. ROSTRATA 62 10 D. 3 <il.001 0.1 313 5 0.1 0.003 ti.i. L. X A I* TH JR US 26 0.1 <U.001 <0.1 27 <O .1 <0.001 <0.1 F. HE:TE*ocu rus 0 0 u {) 0 0 0 u c. H!PP(JS 0 0 0 0 0 0 0 0 P. SALT.HRIX 1 <0.1 <0.001 <0.1 0 0 0 0 P. f: VOL.\*< S 0 0 (J 0 0 0 0 0 P. T R I A C A Ii) HUS 0 0 0 0 1 <0.1 <0.001 <0.1 i1. r.uCn.1 LIS a 0 {) a a 0 0 0 M. MA'1fl'<!CA I) a 0 a 97 10 <0.1 0.001 0.1 P. olMl:R I CAIWS 0 ll {) 0 0 0 0 0 I. NUWLOSUS 0 0 0 0 ll a 0 0 s. AUUOS'JS a 0 0 0 0 0 0 0 P-. fLAVE:SCENS 2 ((J .1 <0.001 <U.1 9 <0.1 (Q.0Ci1 <0.1 G. 1 <D.1 <0.001 <D.1 0 0 0 {j D. 0 0 0 0 1 <0.1 <O.Or!l <D.1 0. TAU [) 0 0 0 -7 <D.1 <tl.OU1 < (). 1 ?. o E:rn Ar us 0 0 0 a 5 <0. 1 <0.001 <0.1 E. MICROSTOMLIS 0 0 0 0 1 <0.1 <tl .Otll <Cl. 1 P. flARH1tJS 0 0 0 0 1 <O. 1 <<.l.001 <0.1 CLUPEIDAE 0 a 0 a 9 <tl.1 <0.001 <G.1 0 0 0 0 23 <0.1 <0.001 <D.1 TOTAL 23,674 100.0 0.306 48.9 364,689 100. (J 3.836 :. 2o. 5 IA SALEM IP 1970 1'l\BLE 3.1.2-9 CONTINUED 19 75 1976 -------------------------------------

PtRCUil PERCEIH SPECH> N OF TOTAL IJ/MJ NIC N RANK OF TOTAL N/M3 N/C ------------------------------------------------------------------------------------------------------------------------------------ A -Ml lCHJLLI 94,9z:1 1 77_3 1.202 97.7 191,672 1 90.9 4.860 334.5 .:-,_ BOSC! 24,462 2 19.9 25.2 17,588 2 8.3 0.446 .50.7 ;LOSA s pp .. 52 9 <0.1 O.Ou1 0.1 66 9 <0.1 0.002 0.1 ;i_ rt

  • ,us 49 10 <0.1 0.UG1 0.1 144 s 0.1 0.004 0.2 c. RCGALIS 1,b40 3 1. 3 lJ.U21 1. 7 302 4 0.1 0.008 o.s i*. E. 1.1 LI 25 <0.1 <fl.{JIJ1

<ll.1 5 <0.1 <0.001 <0.1 s. f IJ s cu s 90 8 0.1 0. 001 0.1 36 <0.1 0.001 u.1 **ir.:-1111-u.s / "1Ef.J l 0 I A SPP. 11 6 7 n.1 0.0UI 0.1 68 8 <0.1 0.002 0.1 A -*tSIH"LIS 12 <0.1 <0.0(11 < lJ .1 9 <0.1 <U.001 <0.1 T. !'>-' .l C. L'L !. T *JS 7 <0.1 <0. lllll <0.1 6 <0.1 <0.001 <0.1 .... /, *.* f' IC A'* A 15 <0.1 <U.Ull1 (() .1 24 <0.1 0.001 <U.1 **- 2 <0.1 <fl.001 (() .1 1 <0.1 <0.001 <O .1 i-L (/-'hi r's :J i1:. 4 <0.1 <ll.001 <U.1 5 <0.1 <0.001 <0.1 lH1CULi:. IUS 501 0.4 0.006 0.5 624 3 0.3 0.016 1.1 s:.x1. I IL IS 44 <0.1 0.001 <0.1 27 <0.1 <0.001 <0.1 SPP. 1 < 0 .1 <0.U01 <0.1 0 0 0 0 *.ior<u:.t: SPP. 0 0 (J 0 0 0 0 0 Hf RI l l I 'I A 160 6 0.1 ll.002 0.2 91 7 <0.1 0.002 0.2 w '** 0 T T.; 614 4 0.5 0.008 0.6 51 <0. l 0.001 0.1 L. ,(f.dd Hi.J-iUS 40 <0.1 O.U01 <0.1 53 10 <0.1 0.001 0.1 I-' f. TUS 0 0 0 0 4 <0.1 <0.001 <0.1 I c. h l PPIJ 5 0 0 0 0 0 0 0 0 (j\ p_ 5Al_l ,'1 [ X 0 0 0 0 0 0 0 u w p_ E VOL 11 'JS n 0 0 0 0 0 0 0 F. n 0 0 !) 0 0 0 0 H

  • f/lJ( P1 ALL s 0 0 0 0 0 0 0 0 ""1AHT l 'JlC.l 71 0 .1 . 0.001 0.1 107 6 <0.1 0.003 0.2 P. 1* r l c *4 us 0 0 0 0 0 0 0 0 !. llbULOSUS 0 0 0 0 0 0 0 0 s. t. oj uO '.J <0.1 <0.001 <0.1 0 0 0 0 p -fl..\Vo5CENS 0 0 0 0 0 0 0 0 G -A. C lil E. 4 T 1 J S 0 u {) 0 0 0 0 0 D. CEl'l:DJf;'llJM 1 <0.1 <0.001 <0.1 0 0 0 0 0. T *u 0 0 0 0 0 0 0 0 P. DtllltdlJS 3 <O .1 <0.001 <0.1 0 0 0 0 <. M!(OOS ro.-llls 0 0 ll 0 1 <0.1 <0.001 <0.1 P. AR 1 rj US {) 0 0 *o 0 0 0 0 CLlJ"UDl.E 0 0 0 0 1 <0.1 <0.001 <0.1 C Y f R l 1, I D A E 21 <0.1 <0.001 <0.1 4 <0.1 <0.001 <0.1 U.POl*:U, s 1 <0.1 <0.001 <0.1 0 0 0 0 P. C l S 1 <0.1 <0.001 <0.1 0 0 0 0 A"IMflD'y res SP. 5 <0.1 <0.001 <D.1 0 0 0 0 ".

1 <D.1 <0.001 <U.1 0 0 0 0 0 0 0 0 1 <0.1 <0.001 <0.1 TOTAL 122,861 100.0 1.556 126.4 210,890 100.0 5.347 368.0 IA SALEM IP 1978 * * * * * * * * * * * *

  • * * * * * * * * *
  • TABLE 3.
  • CONTINIJt:i 1977 (OPERATIONAL) 1978 (OPt:RATIONAL)

PERCENT PERCENT SPECIES N RANK OF TOTAL NIM3 NIC N RANK OF TOTAL N/M] NIC A. MJTCHILLI 8841228 1 91.7 24.626 1*761.4 55d30 1 87.9 l.868 144.2 6. BOSCI 41340 ] 0.5 0 .121 8.6 21241 ] 3.6 0.076 5.9 ALOSA SPP. 1 <0.1 <0.001 <0.1 ]1 9 <0.1 0.001 0.1 e. TYRAIHWS 224 6 <0.1 0.006 0.4 0 0 0 0 c. REGAL[ S 141844 2 1.6 0.413 29.6 41796 2 7.6 0.162 12.S M. MEPUDIA 10 <0.1 <0.001 <0.1 1 <0.1 <0.001 <0.1 s. fUSCUS 1l9 7 <0.1 0.004 O.] 20 10 <0.1 <0.001 <0.1 MEMBRAS/'IENIDIA SPP. 884 4 0.1 0.025 1.8 190 4 0.30 0.006 0.50 A. AES l l I/All S 3 <0.1 <U .001 <0.1 0 0 0 0 T. MACUlAIUS 394 5 <0.1 0.011 0.8 94 5.5 0.1) 0.003 0.24 M. 6 <0.1 <0.001 <0.1 94 5.5 0.15 0.003 0.24 A. PSEUDOHAREN&US 0 0 0 0 0 0 0 0

  • e. CHAI SURA 0 0 0 o* 0 0 0 0 M. UNDUL4JUS 91 9 <0.1 0.003 0.;2 2 .<0.1 <0.001 <0.1 M. SAXA I ILIS 67 11) <0.1 0.001 0.1 45 7 <0.1 . 0.002 0.12 fUNOUlUS SPP. 0 0 0 0 0 0 0 0 HOROtlE SPP. 6 <0.1 <0.001 <0.1 10 <0.1 <0.001 <0.1 M. BERYLLINA a 0 0 0 0 0 0 0 A. ROSIRAlA 100 8 <D.1 O.OOJ 0.2 18 <0.1 <0.001 <0.1 L. XANrHURUS Z1 <0.1 0.001 <0.1 1 <0.1 <0.001 <0.1 w F. HEIEROCLlTUli

] <0.1 <0.001 <0.1 0 0 0 0 c. HIPPOS a a 0 0 0 0 0 0 I-' P. SAL lAlAIX 0 0 0 0 D 0 0 0 I P. EVOLANS 0 0 0 0 0 a 0 0 °' P. TR I AC ArH HUS 0 0 0 0 D 0 0 u "'. 0 0 0 0 0 0 u 0 P. AMER IC oms 2 <0.1 <0.001 0 0 0 0 I. NtBULOSUS 0 0 0 0 D 0 0 0 s. AQUOSUS 11 <0.1 <0.001 <0.1 2 <0.1 ,<0.001 <0.1 P. FLAllESCENS 1 <0.1 <0.001 <0.1 0 0 0 0 G. ACULEAfUS 0 0 0 0 0 0 0 0 D. CEPtOlANUM 3 <0.1 <0.001 <0.1 0 0 0 0 o. lAU 0 0 0 0 0 0 0 0 P. DENJA rus 0 0 0 0 0 0 0 0 E. MICHOSTOl'IUS 1 <0.1 <0.001 <0.1 0 0 0 0 P. MARI NUS a 0 0 0 D 0 u 0 CLUPEJOAE 0 0 u 0 0 0 0 0 CYPRlNlDAE 0 0 0 0 32 8 o.os 0.001 <0.1 LEPOMIS SP. 0 0 0 0 0 0 0 0 P. CROM IS 1 <0.1 <0.001 <0.1 ] <0.1 <0.001 <0.1 Al'IHODHES SP. 0 0 0 0 4 <0.1 <0.001 <0.1 R. HARGlNAJA 0 0 0 0 0 0 *o 0 SClAENlDAE 0 0 0 0 1 <0.1 <0.001 <0.1 CARASSlU5 SP./CYPRlNUli liP. 0 0 0 0 4 <0.1 <0.001 <0.1 c. COMMEASONl 0 a 0 0 1 <0.1 <0.001 <0.1 JOTAL 9051376 100.0 25.215 180].5 62.1120 100.0 2.125 164.0 IA SALEH IP 1976 N @ surface, middeplh. bottom fil'J. wviac!J, bottom o* 1repllcc:iffcm 0 L. I 0 I -I 2 miomotus 3 I Ichthyoplankton sampling I PUlJL!C SSllV!CE l::l.CCTii.IC A!':D GAS CO\lP,\NY stations -1978 i: NUCLC,\R !* ;'! t; ii i ... )_, \l ....... .. 3.1-65 * * * * * * * * ** * *

  • * * * * * * * * **
  • noot Bny anchovy Legend 0

},* \ I ' I : q ' J r r I I I riJ I I I I I \ \ \ \ (\) \ \ \ * \ I \ ' A Lnrvne I '\ : .. +... . I . \ { ., -: \ % -r / '16 I I I I I I I I I I I I (!) 0.0001-r--,--,--.--.--.--r-"'"-"'-'-r--ir--i,-----.---.----.. .... 0. p. /l'f __ ,riJfH_,,+,i 10 .s a; c:n (0 Legend v lllgh r""ga x ___ 0 A Lo,. r...;ga l -& i ., ":;j 20 ,,,.f ', s.. ., ' p. &... ', a <> _,,:R/ 8 ... E-< lf 0* J M A M J J A s 0 N D J PUDLIC SERVICE l!:LECTRIC AND GAS COMPANY Temporal abundance of bay anchovy SALEM NUCLEAR GENERATING STATION ichthyoplankton -1978 Figure 3.1.2-2 3.1-66 Weakfish Legend 0 ____ _ A Larvnt! + ,,+,t ', ,r1Jl1}---+'i 40 Legend '1 ll igh ra.nga X __ _ A Low range J F M A M J J A S 0 N D J . I PUBLIC SEHVICE: ELECTRiC AND GAS cm!PANY i . Temporal abundance of weakfish ichthyoplankton -1978 * * * * * * * *

  • SALEl1! N GJ..:NERATING S'J',\TION 1 *.

__ 3.1-67 *

  • -* * * * * .* * * * ***
  • lO I-JI "' Naked e go by 0.1 .a ::I <.> Legend ........ "" 0 !':ll.l!:S

____ * "' Q A Lui-vna "' 0.01 'ti + Q "' ., :::i 0.001 0.0001 zo -;::. -1 :-r----r-l --r--b-r-k--,--,--,.{, 1 l f--r---'-r-,,, +----.----..., 1 *Legend 'ii High r-=110 X __ _ A Low rnngo PUlJLIC AND GAS COMPANY SALEM NUCLEAR GENERATING STATION J J A S O N D J Temporal abundance. of naked goby ichthyoplankton -1978 Fiqure 3 .1. 2-4 3.1-68

  • *
  • IO ti * .., Q) Silvers ides a .s 01 Legend " '-l>i 0

_____ :::: ., l:l o.m A Lnrvno Q) 'tl +

  • l:l d "' 0001 *
  • o I
  • Legend V llish rnnga X !:!*!!_n __ _
  • A Low ranga
  • J F M A M J J A S 0 N D J
  • f PUJJL!C SEHVICE L:LECTmc AND GAS CO).!PANY I Temporal abundance of silvers ides I SALE:M GENEHATING S'l'ATlOl-l . ichthyoplankton

-1978 . Figure 3.1.2-5 ** 3.1-69 *

  • w I-' I -..J 0 *
  • Eggs J..losa A.

hilli Ca::ass i.:s sp. sp./Xenidia v a:-:-.ericana H. saxa::ilis

c. regalis T. r:iaculatus Lar-va.e ]..lcsa S??* ;...

Cy;:::.:::.cae Car-assii.:s .* sp,/Cy:;-rini:s sp. C. cc:-:-e::soni sp./Menidia spp. S!='?* ?-!. 2:-::e:-i..:a:'\a ti l is H .. ...::.=.:.:at.us ?. Ct'C7:is ;..::-.::-.c:;:::es spp. G .. b:;sci S. a=:...:osus

-.a.::ulatus Yoi.:r.g n. rcs::::ata

.... ::; i P.. r.:e:'li::ia

s.

.... re; al is L. u l 4? tus ... G. bosci s. a::;t:osus

  • sa=ples were taken in January, February or March. * * * * * *

.. ---**=-* PUBLIC SER'VICE ELECTRIC AKD GAS Temporal occurrence of ich thyoplank ton-19 7 8 NUCL!:::AR CE:-<EIL\T!XG STAl!O::\ ,,._M_F { g LiJ::'.e

  • J :1 ..

... .. .... -:=*_ ....

  • * * * * * * * * * **
  • 3. l. 3 Zooplankton (ETS Section 3.1.2.l.lc and d) Quantitative zooplankton collections were made in the Delaware River near Salem on 32 sampling dates from March 22 through December 13, 1978. Objectives were to determine seasonal and spatial variation in microzooplankton and macroinvertebrate plankton composition and abundance immediately offshore of Artificial Island, in the region of the Salem Unit I thermal plume, and in regions to.the north and south
  • 3.1.3.1 Summary Microzooplankton are invertebrates not retained by a 0.5-mm mesh conical net but retained by a 0.08-mm mesh net; macroinvertebrates are retained on the 0.5-rnrn mesh net. One hundred fourteen invertebrate species were *identified in the 681 microzooplankton and 335 macroinvertebrate plankton samples analyzed.

Annual mean microzooplankton and densities were approximately 66,000/m and 10,000/lOOmJ, respectively. Monthly mean density was high from March through May (ca. 115SOOO/m ) and then decreased through September (ca. 19,000/m )

  • It remained low in October November and then increased in December (ca. 71,000/m ). Copepods, rotifers, and polychaetes were the most abundant taxonomic groups and accounted for 58, 29, and 6 percent, respectively, of the total microzooplankton sample. Acartia tonsa, Eurytemora affinis, Ectinosoma spp., Notholca spp., and Branchionus spp. were predominant.

Two distinct communities of microzooplankters occurred seasonally during 1978. A tidal river community consisting of limnetic and oligohaline organisms such as rotifers, cyclopoid copepods, and cladocerans occurred during periods of lowest salinity (winter and spring). An estuarine community predominated by euryhaline calanoid copepods and meroplanktonic larvae of benthic invertebrates occurred during periods of higher salinities (late spring through fall). The pattern of seasonal change in microzooplankton abundance was similar to that of recent years (1973-1977). Macroinvertebrate monthly mjan density was low from March through May (ca. 1,000/lOOm ), increased to a peak during June (ca. §4and decreased through November (ca. 5,023/lOOm ) . Neomysis americana and Rhithropanopeus harrisii were most abundant, comprising 94.2 percent of the total annual sample. Other predominant taxa included: 3.1-71 Garnrnarus spp., Uca minax, Blackfordia virginica, Palaemonetes puglc), Edotea triloba, Corophiurn spp., Brachyura, and Crangon septemspinosa. 3.1.3.2 Materials and Methods All zooplankton samples required by ETS were collected. Microzooplankton samples were collected from March through December during daylight at 12 stations and over 12-hr periods at three stations extending west of Salem (Table 3.1.3-1, Fig. 3.1.3-1). All microzooplankton samples were collected with a filter pump plankton sampler (Fig. 3.1.3-2) fitted with a number 20 net (0.08 mm mesh). For a more detailed description of sampling gear, gear deployment, collection of physicochemical data and laboratory procedures see Volume 2 of the 1977 Annual Environmental Operating Report. Macroinvertebrates were collected from March through November in the ichthyoplankton program from just below surface and just above bottom with 1/2-meter plankton nets of 0.5-mm mesh. Detailed descriptions of sampling and laboratory materials and methods are described in Section 3.1.2.1.lb and Section 3.1.2.1.lc and d, respectively, of the 1977 Annual Environmental Operating Report. In 1978 samples from stations IPOl, IP02, IP03, IP04, IP05, IP06, IP07, IP08, IP09, IPlO, IPll, IP21, and IP22 were processed; samples from stations IP05, IP06, IP07, IP21, and IP22 were replicated. Also in 1978, the taxon Brachyura represented megalops of Uca rninax and Rhithropanopeus harrisii (after August 31 rnegalops were identified to species). 3;1.3.3 Results and GENERAL SAMPLE COMPOSITION One hundred fourteen invertebrate taxa were identified in the 681 microzooplankton and 334 macroinvertebrate samples collected and analyzed (Tables 3.1.3-2 through 3.1.3-6). Annual mean microzooplankton and macroinvertebrate density was approximately and 10,000/lOOm , respectively. 3.1-72 * * * * * * *. * * * * *

  • * * * * * * *
  • I* **
  • r1onthly mean microzooplankton density 3 during 1978 was high from Harch through May (ca. 115,000/m ) after which i:!; decreased through September to approximately Monthly mean density remained low in and November and then increased in December to 71,000/m (Fig.

Extremely high density of copepod nauplii accounted for the December increase. peak monthly microzooplankton density of March. Microzoop!ankton density during March through December, 1978 (66,388/m ) was greater than observed in previous years (1973-1977). Mean 3 density during these years ranged from ' 31,433 to 46,340/m . The pattern of seasonal change in rnicrozooplankton abundance was similar to that of recent years (1973-1977). Copepods, rotifers, and polychaetes were the three most abundant taxonomic groups, comprising 58, 29, and 6 percent, respectively, of the total microzooplankton sample (Table 3.1.3-7). Common organisms were Acartia tonsa, Eurvtemora affinis, Ectinosoma spp., NothOlca spp., Branchionus spp., and Gastropoda (veligers). Microzooplankton community structure, i.e., species composition, during 1978 was similar to that of recent years (1973-1977) . Macroinvertebrate monthly density was low from March through May (ca. ) , increased to a peak during June (ca. ) and decreased through November (ca. 5,000/lOOm) (Fig. 3.1.3-3). Neornysis americana and Rhithropanopeus harrisii were most abundant comprising 94.2 percent of the total annual sample (Table 3.1.3-8). Other common taxa included: Garnmarus spp., Uca minax, Blackfordia virginica, Palaemonetes pugio, Edotea trlloba, Corophium spp., Brachyura and Crangon septemspinosa . MICROZOOPLANKTON COMPOSITION An overview of each major taxonomic group is presented together with detailed discussion on predominant species in each group. Aschelrninthes Fifteen genera of Rotifera were represented by more than 25 species. Rotifers were typically associated with low 3.1-73 salinity waters. Seasonally, they were most abundant from March through mid-June comprising over 52 percent of the microzooplankton sample (Table 3.1.3-4). Rotifer spp., an "artificial" taxon including illoricate rotifers that contract upon preservation making specific identification impossible without the addition of a relaxing agent or close examination of trophi, was the most abundant rotifer and second most abundant taxon collected. It had an annual density of 13,477/m and it comprised over 20 percent of the annual sample (Table 3.1.3-7). Density was greatest from through May (Fig. 3.1.3-4). Peak density (209,545/m) occurred on March 22 (Table 3.1.3-2). It was collected at water temperature of 5.9 to 38.0 C and salinity of 0.0 to 11.0 ppt. Examination of trophi of randomly selected illoricate individuals indicated that most were Synchaeta spp. which tolerate brackish waters. Notholca sp. was the second most abundant rotifer (3,360/m 3) and sixth ranking microzooplankter (Table 3.1.3-7). Density was greatest from April through June 3 (Fig. 3.1.3-4). Peak density occurred on May 17 (44,867/m) (Table 3.1.3-2). It was collected at water temperature of 6.0 to 27.2 C and salinity of 0.0 to 8.0 ppt. quadrata was the third most abundant rotifer (l,309/rn) and ninth ranking microzooplankter (Table 3.1.3-7). Density was during May with a peak density on May 17 (17,014/m) (Table 3.1.3-2; Fig. 3.1.3-4). It was collected at water temperature of 7.0 to 22.0 C and salinity of 0.0 to 7.0 ppt. The genus Branchionus ranked third and was represented by at least eight species. Of these, B. angularis was predominant. It ranked tenth among all and comprjsed 1.4 percent of the annual sample (945/m ) (Table 3.1.3-7). Density was greatest from May to July (Fig. Greatest density occurred on May 17 (6,968/m) and May 25 (6,326) (Table 3.1.3-2). It was collected at water temperature of 7.0 to 29.0 C and salinity of 0.0 to 10.0 ppt. The nematode worms collected were either free-living benthic or terrestrial forms washed water from local soils. The annual mean density was 97/mJ. Density greatest from March through June. Peak density (488/m ) occurred on March 22 (Tables 3.1.3-2). Nematodes were collected at water temperature of 6.0 to 28:0 C and salinity of 0.0 to 14. 0 ppt. 3.1-74 * * * * * * * * * * *** *

  • * * * * * * * * * *
  • Annelida Polychaete eggs and larvae had an annual density of 4,043/m 3 and were the fifth most abundant microzooplankter (Table 3.1.3-7).

Density was greatest during October through December (Fig. 3.1.3-5). Monthly peak density occurred on October 26 (Table 3.1.3-2). Eggs and larvae were collected at water temperature of 5.9 to 29.0 C and salinity of O.D to 15.0 ppt

  • Mollusca Larval gastropods (veligers) had an annual mean of l,432/m 3 and were the eighth most abundant microzooplankter (Table 3.1.3-7).

They were most abundant during June September (Fig. 3.1.3-5). Peak density (12,254/m) was on July 27 (Table 3.1.3-2). It was collected at water temperature of 6.5 to 29.0 C and salinity of 0.0 to 14.0 ppt. Larvae are believed to be young of gastropods occurring in locai tidal marshes or further south in Delaware Bay (Lindsay and Morrisson, 1974)

  • Larval pelecypods (mostly free-swimming veliger larvae) were collected throughout the year. The annual density was 134/m
  • 3 Density was greatest during October with a peak (2,476/m ) occurring on October 26 (Tables 3.1.3-2). Larvae were collected at water temperature of 6.0 to 28.0 C and salinity of 5.0 to 14.0 ppt. Macoma balthica has consistently been one of the most abundant adult pelecypods collected near Artificial Island (Connelly et al., 1976) and is probably the source of many of the larvae-collected
  • Arthropoda Six genera of Cladocera were collected:

Bosmina, Moina, Ceriodaph-nia, Chydorus, Leydigia, and Alona. Cladoceran density was greatest during May and June (Table 3.1.3-2). Bosmina spp., which was the most abundant cladoceran and fourteenth most microzooplankter, had an annual mean density of 336/m (Table 3.1.3-7). Density was 3 greatest during May and June. A peak density of 5,864/m was collected on May 25 (Table 3.1.3-2). Bosmina spp

  • occurred at water temperature of 7.0 to 27.2 C and salinity of 0.0 to 7.0 ppt. 3.1-75 Cope pod a Adults and copepodids of at least 15 species of copepods were collected during 1978. Nauplii (early developmental stages) plus juveniles and adults of the three most abundant copepods comprised over 40 percent of the total microzooplankton sample. Nauplii were collected on every sampling date were the most abundant microzooplankton taxon (27,014/m ) (Table 3.1.3-7).

Taxonomic subtleties made species identification impracticable. The presence of several species in this category may have masked specific density differences. Copepod nauplii mean densities were highest during April through 3 June and December (Fig. 3.1.3-6). Peak density (116,909/m ) occurred on December 6 (Table 3.1.3-2). Two species of calanoid copepods, Eurytemora affinis and Acartia tonsa, were dominant members of the microzooplankton community accounting for 7.0 and 6.6 percent, respectively, of the annual sample (Table 3.1.3-7). E. affinis predominated from March through mid-June and A. tonsa predominated for the remainder of the year (Table 3.1.3-2, Fig. 3.1.3-6). Acartia tonsa, the most abundant species of copepod (4,680/rn-') and third microzooplankter, reached maximum density of 20r425/m on July 12 (Tables 3.1.3-7, Fig. 3.1.3-6). Described as a euryhaline species by Cronin et al. (1962), A. tonsa was collected in the study area at watertemperature-of 6.0 to 29.0 C and salinity of 0.0 to 15.0 ppt. Eurytemora af f was the second most abundant copepod species (4,349/m°) and fourth most abundant microzooplankter (Table 3.1.3-7). Densities were from March through June with a maximum density of 24,723/m collected on April 25 (Table 3.1.3-2, Fig. 3.1.3-6). E. affinis was collected at water temperature of 5.9 to 29.0-C and salinity of 0.0 to 11. 0 ppt. The harpacticoid copepod, Ectinosoma spp., was the third most abundant copepod and seventh 3 ranking microzooplankter with an annual density of 2,278/m (Table 3.1.3-7). It was abundant every except March (Table 3.1.3-2). A peak density of 8,607/m was collected on July 27 (Table 3.1.3-2). It was collected at water temperature of 5.9 to 29.0 C and salinity of 0.0 to 14.0 ppt. Cirripedia and cypris, which together had an annual density of 625/m were the eleventh most abundant microzooplankters. They were most abundant during r1a3 -through September and reached peak density of 4,891/rn on 3.1-76 * * * * * * *. * * * * *

  • * * * * * * * * **
  • June 28 (Table 3.1.3-2).

They were collected at water temperature of 6.0 to 29.0 C and salinity of 0.0 to 14.0 ppt. Most were probably larvae of Balanus improvisus, the only adult barnacle which sets near Artificial Island (see Section 3.1.4), Tardigrades were collected during April, May, and June had an annual density of Greatest density (58/m-) was collected on May 17 (Table 3.1.3-2}. Tardigrades were collected at water temperature of 12.5 to 27.8 C and salinity of 2.0 to 5.0 ppt . MACROINVERTEBRATE PLANKTON COMPOSITION The 10 predominant macroinvertebrate plankters, which comprised 99.5 percent of the macroinvertebrate sample during 1978 (Table 3.1.3-8), are discussed in order of decreasing abundance. Neomysis arnericana, the opossum shrimp, was the most abundant collected. Annual mean density was 7,520/lOOm

  • It comprised approximately 75 percent of the total sample and was collected throughout the year (Tables 3.1.3-8, 3.1.3-3).

Greatest density occurred from June through 3 Novernber (Fig. 3.1.3-7). Peak density (40,839/lOOrn) occurred on June 15 (Table 3.1.3-3). It was collected at water temperature of to 28.0 C and salinity of 0.0 to 12.0 ppt. The seasonality of juveniles indicated that most reproduction occurred from May through November (Fig. 3.1.3-8). Mean density was greater near bottom than near surface on all sampling dates (Table 3.1.9-9). N. americana apparently congregates on or near the bottom during daylight (Hulburt, 1957; Hopkins, 1965; and Browne et al., 1976)

  • Rhithropanopeus harrisii larvae, including zoeae and megalops of this brackish water mud crab, were the second most abundant macroinv3rtebrate collected.

Annual mean density was 1,926/lOOm (Table 3.1.3-8). It was abundant from June th3ough September (Fig. 3.1.3-9). Peak density (11,140/lOOrn) occurred on July 27 (Table 3.1.3-3). It was collected at water temperature of 4.3 to 28.0 C and salinity of 0.0 to 11.0 ppt. Gammarus spp. (probably including G. fasciatus, G. tigrinus, and G. daiberi) was the third most-abundant -macroinv3rtebrate collected. Annual mean density was 215/lOOm (Table 3.1.3-8). It was collected throughout the 3.1-77 year, with highest densities occurring during June 3 through September (Fig. 3.1.3-10). Peak density (846/lOOm) occurred on August 10 (Table 3.1.3-3). It was taken at water temperature of 4.0 to 28.0 C and salinity of 0.0 to 11.5 ppt. The seasonality of juveniles indicated that most reproduction occurred during May through October (Fig. 3.1.3-11). Greater density occurred near bottom than near surface on all sampling dates (Table 3.1.3-9). It occurred in higher densities at northern stations than at southern stations (Table 3.1.3-10). Gamrnarus spp. is essentially a freshwater organism; therefore, this north-south distribution probably corresponds to the salinity gradient. Uca rninax, including zoeae and megalops of the red-jointed fiddler crab, were the fourth most abundant macroinv3rtebrate collected. Annual mean density was 124/lOOrn (Table 3.1.3-8). It was collected during June through (Fig. 3.1.3-9). Peak density (l,869/lOOm) occurred on June 28 (Table 3.1.3-3). It was collected at water temperature 19.8 to 27.5 C and salinity 0.0 to 10.0 ppt. Densities were greatest at stations IP03, IP05, IP08, and IPlO (Table 3.1.3-10). Since U. minax adults inhabit the intertidal zone along banks-of tidal streams and river, the greater densities of u. minax larvae at these stations may be due to the of these stations to shore (Fig. 3.1.3-1). Blackfordia virginica, a hydromedusa, was the fifth most abundant plankter. Annual mean density was 92/lOOm (Table 3.1.3-8). It occurred from through September (Fig. 3.1.3-7). Peak density (1,105/lOOm ) occurred on August 31 (Table 3.1.3-3). It was collected at temperature of 23.0 to 28.0 C and salinity of 3.0 to 10.5 ppt. The seasonality of juveniles indicated that most reproduction occurred from July through August (Fig. 3.1.3-12). Greater density of B. virginica occured near bottom than near surface (Table 3.1.3-9). Generally it occurred in greater densities at southern stations than at northern stations (Table 3.1.3-10). This observation corroborates findings of Cronin, Daiber, and Hulburt (1962) that B. virginica is typically found in waters with salinities exceeding 7.5 ppt. Palaemonetes pugio, the grass shrimp, was the sixth most abundant collected. Annual mean density was 26/lOOm-(Table 3.1.3-8). It was collected from April through November (Table 3.1.3-3). Greatest densities occurred from through August (Fig. 3.1.3-13). Peak density (169/lOOm) occurred on July 27 (Table 3.1.3-3). P. pugio was collected at water temperature of 10.2 to 28.0 C and salinity of 0.0 to 11.0 ppt. It occurred mostly as 3.1-78 * * * * * * * * * * ** *

  • * * * * * .* * * * *
  • juveniles 2 to 7 mm long. The seasonality of indicated that most reproduction during June through September (Fig. 3.1.3-14).

It is rarely collected in benthic samples in the study area (see Section 3.1.4) probably because it typically inhabits shallow water grass habitats (Welsh, 1975) . The isopod, Edotea triloba, was the most abundant isopod and seventh most macroinvertebrate. Annual mean density was (Table 3.1.3-8). It was collected throughout the year and was most abundant during July through Septembe3 (Table 3.1.3-3, Fig. 3.1.3-7). Peak density (96/lOOm) occurred on September 13 (Table 3.1.3-3). It was collected at water temperature 4.3 to 28.0 C and salinity of 0.0 to 11.0 ppt. The seasonality of juveniles indicated that most reproduction occurred from June through October (Fig. 3.1.3-15). Mean density was greater near bottom than surface on all sampling dates (Table 3.1.3-9) . Generally, E. triloba occurred in greater densities at southern stations than northern stations {Table 3.1.3-10). Corophium spp. was the second most abundant amphipod and eighth most abundant mac3oinvertebrate collected. Annual mean density was 19/lOOm (Table 3.1.3-8). It was collected throughout the year, with highest densities from July through (Table 3.1.3-3, Fig. 3.1.3-10}. Peak density* (59/lOOrn) occurred on August 10 (Table 3.1.3-3). It was collected at water temperature of 4.3 to 28.0 C and salinity of 2.0 to 10.0 ppt. The seasonality of juveniles indicated that most reproduction occurred from June thrciugh November (Fig. 3.1.3-16). Mean density was greater near bottom than near surface on all sampling dates (Table 3.1.3-9). Corophium spp. typically occurred in greater densities at northern stations than southern stations (Table 3.1.3-10). Brachyura ranked ninth among collected. Annual mean density was 16/lOOm {Table 3.1.3-8). It was collected from through August (Fig. 3.1.3-9). Peak density (114/lOOrn) occurred on August 10 (Table 3.1.3-3). It was collected at water temperature of 22.0 to 28.0 C and salinity of 2.0 to 10.0 ppt. Crangon septemspinosa, the sand shrimp, ranked tenth among collected. Annual mean density was 14/lOOm (Table 3.1.3-8). It was collected on all sampling dates. Greatest densities occurred from June September (Fig. 3.1.3-13). Peak density (127/lOOm) occurred on June 15 (Table 3.1.3-3). It was collected at water temperature of 4.0 to 28.0 C and salinity of 0.0 to 10.0 ppt. The seasonality of juveniles indicated that most reproduction occurred from May through September (Fig. 3.1.3-17). 3.1-79 Mean density was greater near bottom than surface on all sampling dates (Table 3.1.3-10). 3.1-80 * * * * * * * . * * * ** *

  • * *
  • Station ZPOl
  • ZP03 ZP04
  • ZPOS ZP06 .
  • ZP07 ZP08 ZPlO ZP11 ,. ZP12 ZP21
  • ZP22 * **
  • TABLE 3.1.3-1 MICROZOOPLANKTON SAMPLING STATIONS -1978 Description Between the mouth of the Chesapeake and Delaware Canal and bell buoy "RB" (ca. 0.2 km east of the mouth of the Chesapeake and Delaware Canal. Approximately 15 m west of buoy N"A" (ca. 1 km west of Artificial Island). Between buoy C"lR" and Reedy Island Dike
  • Approximately 15 m west of Salem and the mouth of Sunken Ship Cove. Between buoys R: 2B" and R"4B" (ca. 1.2 km west of Artificial Island)
  • Between Appoquinimink Light and buoy "lB" (ca. 0.4 km off Delaware shore). 15 m west of Hope Creek Jetty. 1 km NE of Liston Point Approximately 1.2 km west of New Jersey shore from a point just north of the mouth of Mad Horse Creek. Approximately 1.6 km NE of Delaware Point. In Hope Creek, approximately 3.2 km from its mouth
  • In Hope Creek, approximately 1.4 km from its mouth. IA SALEM ZP 1978 3.1-81 TABLE 3 .1. 3-2 MICROZOOPLANKTON MEAN DENSITY PER SAMPLING PERIOD (NUMBERS/CUBIC METER I OA TE 03122/78 03129178 04/20/78 04/25178 05/17/78 05/25/78 06/15/78 06/28/78 07/12/78 DAY OR 12 HOUR DAY 12 HOUR DAY 12 HOUR DAY 12 HOUR DAV DAY P E h I D !ti I tJ *I 214 29 N. &Cl 11 I I LLAljS 17 RO I If l il SPP. Z091545 1s.200 360 566 8.727 29.094 2.004 230 203 R 0 l If UH A 449 510 56 NO Hdil CA 158 467 556 21673 441867 13*657 416!>9 16 6 KERA !ELLA 2 9 14 422 11321 74 K
  • i; lJ A 0 <<AT A 10 19 63 17 1014 9.029 36 8. CAL re If 4 38 214 509 1,995 4.644 1.365 48 B. ANGULAR JS 9 5 39 58 61968 6.326 2.878 627 1.071 B. I AdlLIS 122 20 tl. CAUt.lA rus 21> 2.410 185 39 8. lJRCEJLARIS 18 44 60 8. Olllb<SICORN!S 45 a. PL!CqfL!S 6 8. GuAD.'llDE*iTATUS 27 66 68 7 2 K. ti 1) S I 0 .';J E ti S I S
  • 3 372 654 74 w K
  • L011(,JS?lNA 34 1--' P. PAIULUS
  • 6 I POLYA>iT-iRA 16 45 1'51 55 co 7 56 N 7 424 2.192 57 47 F. LOr.(,J SE TA 17 29 1.1115 1 , 4 91 2 81 Ii Ei-1 A I (1 0 A 488 143 53 132 159 355 228 171 3 1,832 16 27 22 109 312 551 OL!GOCHAETA 5 9 29 18 GASTR0POD4 5 119 2,790 4,114 PELEClPODA 4

26 2 9 231 5,864 553 7 25 0AP111. I,\ 3 36 84 14 MU 1 N.\ 58 166 9 CnlOOliUS 2 1 8 44 ALUl1A 9 LEYDIG!A SP.

  • COPE POU llAUPLI I 6,954 12,442 94.264 61 .. 511 391756 25.580 20,459 66.659 17,971 E. A ff I 'i IS 889 3,301 12.662 24,723 91548 6.351 19,454 3,524 4,484 DIAPl(J.'*IJS 1 5 31 4 18 36 4 P. C 0 ii 0 'I A I US 3 683 3,415 11672 A. l 011 SA 7 14 7,014 12, 333 20,425

!COi DA 99 67 33 103 273 394 86 86 1 SCOT TULA NA 11 54 129 385 510 180 EC TI 1-105:)'\A 640 237 346 2.418 3,002 21339 11852 4*619 1.33 7 E. CllRTICORNE 18 o. COLCAR\IA 15 18 H. FOSTER! 26 9 9 44 67 260 286 CYCLOPS 83 156 399 448 1, 11 8 31041 434 22 35 !A SALEM ZP 1978 * * ** * * * * * * * * * * *

  • * * * * * * * * ------* *---* --

-:* *

  • TABLE 3.1.3-2 CONTINUED.

DA TE 03/ 22178 03/29/78 04/20/78 04/25178 05/17/ 78 05/25/78 06/15/78 06/28/78 07/12178 DAY OR NIGHT 12 HOUR DAY 12 HOUR DAY 12 HOUR DAY 12 HOUR OAY DAY c. VER,lALlS 12 7 57 BO 767 143 1b1 c. 81CUSP1DATUS 20 110 97 149 154 325 9 22 E. AGILIS 9 4 T. PRlSlNUS 4 EkGASlLUS 2 ClHRIPEDIA 551 1.11 s 304 4,891 11318 Cil SCUS LARVAE 18 7 58 14 w TOTAL 220.783 32.368 109.387 96.513 137.171 115.342 661708 1011677 53,7c,9 f-' I NO. SAMPLES 39 24 39 co 24 39 24 39 24 24 w IA SALEM ZP 1978 Tl\BLE 3 .1. 3-2 CUN'l'lNUJ,;U

  • . DA TE 07127/78 08/10/78 08/31/78 09/13/78 09/27/78 10/18/78 10/ii!6/78 11115/78 11/ii!1/78 DAY OR >l!GHT 1 ii! HOUR 12 HOUR DAY 12 HOUR DAY 1ii! HOUR DAY DAY 12 HOUR INVERT. EGG
  • 26 9 4 5 7 H 6 7 5 ROTIFER SPP. 64 13 23 1 5 19 4 70 190 ROT !FERA A 9
  • 44 4 1l 18 1 1 BDELLOI DEA 41 6 1 5 NOTHOLCA 8
  • 2
  • kE RA IE LL A 11 8. CALYCIFLORUS 2 2 128
  • B. ANGULARIS 80 549 92 175 7 11 B. CAUDATUS 1 5
  • B. DlVERSlCORt-IJS

"' B. HAVANAENSIS 5 B. PLICATILIS 1 8. QIJAOR IDEtHATUS 4 STNCHAETA 1 12 LE C MlE 2 10 3 1 NEMATODA 19 5 4 18 11 1ii! 8 27 6 w POLYCHAEIA 112H 555 138 53 95 51895 4013£.1 141448 31726 I-' OLIGOCllAETA

  • 2 1 4 1 10 I GAS TROPOOA 12.254 41549 2.496 1.596 668 41 4 7 co PELECYPODA 16 1 5 4 21476 57 51 "'" AC AR INA 5 CRUSTACEA 17 BOSM INA
  • MOINA 1l 2 10 OSTRACOOA 1 15 9 1 COPEPOD NAUPLil 10.31,9 11.642 5,066 6.966 71717 61279 3,572 11.371 5,503 P. CRASSIROSTRlS 32 2 8 P. PARVUS 1 E. AFFnIS 1l 197 7 6 2 2 18 8 80 P.

520 351 291 247 626 103 261 264 665 A. T SA 101342 9,037 51632 71040 8.253 3.760 3.290 1.229 z,5z9 HAR PACT I CO ID ... 33 31 44 5 2. 48 63 60 59 8 SCOT TOLA*IA 121 16ii! 62 27 12 6 20 39 81607 4,990 327 2.028 783 1.857 769 5,750 1.539 E. CURTICORNE 1 O. COLCARVA 16 13 84 24 381 4 13 H. FOSTERl 5 116 52 7 "' CYCLOPS 6 4 32 z 1 3 5

  • C.

3 3 C. BICUSPlDltTUS

  • 4 1 ERGASlLUS 32 2 91 7 11 5 ARC.ULUS SPP. ii! " CIRRIPEOIA 1,060 632 955 511 406 267 190 170 50 CRYPTONISCUS LARVAE 1 27 13 13 24 5 iW TOTAL 44.826 J2;936 15,598 18.826 19,148 18,350 51,282 37,543 14.356 NO. SAMPLES ]9 48 24 48 24 55 24 24 57 IA Sl\LEM ZP 1978 * * * * * * * * * * * * * *
  • * * * * * * * * * * *
  • TABLE 3. l. 3-2 CONTINUED OATE 12/06/78 12113178 DAY OR NIGHT DAY 12 HOUR TIJHBELLAHIA 24 ROTlHH SPP. 284 2.941 NOTHOLCA 117 K. QIJADRATA 2 e. CALYCIFLORUS
  • 1 e.
  • B. CAUDAlUS 1 8. HAVANAENSlS 2 K. BUS TONIENSIS 20 SVNCHH TA
  • 2 NEMATODA 61! POLHHAEIA 10.854 6UB GASHOP\lOA
  • 1 PE:U.CYPOOA 41 13 MOINA 2 w COPEPOOA 3 COPE:PUD NAUPlll 116.909 4.318 I-' E.. Aff lNlS 488 1.211 I DlAP I Oi'IUS
  • co P. COHONATUS i!12 89 lll A. TOllSA 340 31>2 HARPACTlCOlDA 40 25
  • EC 1 ltlOSOMA 1.111 978 o. COLCARVA
  • 1 H. FOSTER I 3 11 CYCLOPS
  • i! c. VE:kNAll S 3 c. BICUSPIDATUS 1 E. AGlLIS 1 ClRRIPEOlA 62 20 TOTAL 130.457 10.778 NO. SAMPLES 23 39 IA ZP 1978 TABLE 3 .1. 3-3 MACROINVERTEBRATES MEAN DENSITY PER SAMPLING PERIOD CNUMBERS/100 CUBIC METERS) DA TE 03/22/78 04/20178 05/17/78 06/15178 06/28/78 07/12/78 07127178 08/10178 08/31/78 DAY OR NIGHT OAY DAY DAY DAY DAY DAY DAY DAY DAY 1"1. PROL!FERA
  • HYDROZOA
  • 3 * * (MEDUSAE)
  • 11
  1. 1 (MEOUSAE)
  • BOLJGA!l<VILLIA SPP. * *
  • 1 N. bACHE:l *
  • 9
  • 5 SPP. P>l!Al!Dlu)l SPP.
  • 1 7 *e. VlRGl*'<ICA
  • 163 149 1,105 LUDi! B. Ov .\TA
  • TURIHLLAR

!A *

  • POL YCf1AE 1 A 14 1 * * *
  • OllGUCHt.E TA 5 16 28 *
  • HlilUDllJE:t.

2 * *

  • w
  • 2 5
  • f--'

.. ;. SPP. 28 * *

  • I L. PClYP":;'iUS
  • 00 L. KI 11D111 126
  • 2
  • O'\ L. AE:STIVA 2
  • 13
  • L. MAJ UR
  • ERGASILIDH
  • ARGULUS SPP. 5 29 7 ClRRIPE:DIA
  • *
  • rJ. A.<<E:R !CAilA 203 831 397 40,839 27 1132 6,703 41197 4.862 41181 L.

1 3 24 19 40 2 3 ISOP()OA

  • SPP. 18 c. 1 5 12 7 7 * * *
  • E. TRIL03A * *
  • 1 19 24 78 13 36 c. POLI TA *
  • 1 4
  • 1 *
  • c. LLJNURO<llU.'1 SPP. 1 1 4 6 6 54 48 59 4 GAMMHUS SPP. 47 10 1 51 537 560 105 244 846 506 M. NI Tl DA * * * *
  • 1
  • HAUSTORllDAE
  • *
  • MONOCUUDES SPP.
  • 1 * *
  • 1
  • M. HHA'<OSI 2 *
  • 2 2 1 5 8 2 PARAPLEUSTES SPP. * * * *
  • O"CHE:STIA SPP. *
  • P. PlJGlQ
  • 19 56 62 169 71 55 c. SEPTE:.ISP!NOSA 2 2 9 127 37 6 11 4
  • IA SALEM ZP 1978 ** * * * * * * * * * *
  • * * * * * * * * * *
  • TABLE 3.1.3-3 CONTINUED DATE 0312.2178 04/20/78 05/17178 06/15178 06128/78 07/12178 07127/78 08/10/78 08/31178 DAY OR NIGHT DA't DAY DA't DAV DAY DAY DAY DAY DAY 6RACHYURA
  • 2 66 114 5 c. SAf>lDUS 1 R.

1t 1t 144 2,776 8.081 11.140 9.823 866 U. 7 1.869 148 205 B lNSHTA It

  • DlPHRA
  • CYLlClDAE
  • 1t
  • 1t
  • CHHTOGNATtlA 1t TOTAL 298 856 649 411862 32, 510 15.242 16,431 15,983 6,802 w NO. SAMPLES ...... 28 28 27 28 28 28 28 28 28 I 00 -..) IA SALEM ZP 1978 TABLE 3 .1. 3-3 CON'l'INUED DA TE 09/13/78 10/26178 10/27178 11121178 11122/78 DAY OR NIGHT DAY OAY DAY DAY DAY HYDROZOA (MEDUSAE) 12 7 25 88 HYDROZOA #1 (MEDUSAE 2 BOUGA I tlV I LLI A SPP. 2
  • N. BACHE! 9 *
  • PHIALIDIUM SPP. 1 8. VIRGINICA 118 ACT!NlAR!A
  • Cl EIJOPHORA
  • 3 7 8. OVA TA
  • RHYllCHOCOELA
  • POUCHAETA 1 OLlGOCHAET A 2 *
  • HIRlJDlNEA 5 NUDll:lRANCHIA
  • MA COMA SPP.
  • w L. AES TI VA
  • 4
  • ARGULUS SPP. 1 * *
  • I-' N. Af>IERICA>jA 121765 51314 21705 51120 89 I L. AMERICANUS 18 5 7 2 co c. ALMYRA 1 1 2 1 co E. TRILOaA 96 13 4 1 3 . c. POLIT A *
  • c. LllNI FRONS
  • A. MEDIALIS * *
  • COROPH IU'I SPP. 13 1 5 8 51 6 GAMMARUS SPP. 281 35 61 12 M. N!TlDA 15 *
  • M. EDWARDS! 15
  • 4
  • PARAPLEUSTES SPP. 2 *
  • OR CHES TIA SPP.
  • P. PLJ(,10 16 *
  • c. SEPTE'ISPINOSA 8 6 4 c. SAPIOUS 1 *
  • R. HARRISlI 921
  • 2
  • u. MIN AX 1 TOTAL 141316 5,4(}6 21791 5'241 19S NO. SAMPLES 28 26 2 24 4 IA SALEM ZP 1978 * * * * * * * * * * * * * *
  • * * * * * * * * * * *
  • TABLE 3.1.3-4 MICROZOOPLANKTON SE:ASONAL MEAN DENSITY (NUMBERS/CUBIC HETER> -1978.

SEASON 01/01 -02/29 03 / 01 -06/15 06/16 -09/15 09/16 -11/30 12/01 -12 / .51 TE!-!P. (Cl RANGE o.o -o.o 5.9 -22.0 22 .o -29.0 8.2 -20.B 6.0 -1 0 .1 o.o 13.1 25.9 14 .3 7 .. 7 SAL. tPPTl kANGE o.o -o.o (J.[J -10.0 2.11 -11.0 4.0 -1 5. 0 3.0 -10.0 o.o 2.8 5.9 9.3 6.3 TAXGt,OHC GROUP MEAN NO. Ml:A.N X MEAN NO. MEAt1 % MUN NO. MEAN % MEAN NO. MEAN x MEAN NO. MEAN SUCTORIA 39 0.03 ' 1

  • fUi;bfLLARlA 7 0.01 1 .. 9 o.u1 ROT lfl:H SPP.

36.34 142 0. 35 80 0.33 1 , ') 5 5 .5. '>4 BDELLODEA 6 0.01 1 * :, C.GO ,., A 19,.597 16.57 444 1.10 23 0.09 94 0.17 t; E: IH l LI ii A 225 0.19 29 0.07 11 0.04 41 0.07 340 U.29 489 1

  • 21 101080 41.99 414G'J 7.99 OLTGO(Hl.ElA 8 * *
  • 2
  • w GA>TkOPJDA 20 0.01 41824 11
  • 9 8 101 0.42 *
  • I-'
  • 4
  • 347 1.44 2L, 0.04 I
  • co (olllSTHEA 2 * \.0 8,A,.JCHIOPODA 795 O.bl 30 0.07 *
  • OSTRACODA
  • 4 Cl. 01 38,401 32.81 16,664 41. 38 6, 798 2S.32 46,088 !l 3. 5 i.

121232 10.45 1119Dd 29. 72 41257 17.73 J,436 2.oO l lCOlDA 11762 1.so 4, 1 73 10.36 2,039 8.49 1, 061 1. 72 CYCLOPO!DA 11uoa (J. !!6 177 0.43 58 0.24 1' 0.02 BR A CH l ll fl A * * *

  • 264 0.22 1.295 3.21 195 0.81 3? O.Oo !SOPODA 3
  • 11 0.02 7 0.02 TARD!GRADA 10
  • 1
  • TOTAL 117,049 99.94 401267 99.92 24,004 99.93 55,168 99 .'i6 . * = BE Lu"' REPORTABLE LEVEL IA SALEM ZP 1978
  • w f-' I l.O 0 SE t. !l rt:*lP. ( c) RA SE \'\EA 11 sn. ! PP Tl RANGE TA x1,:,Q"I IC or i*:o s 1 t.. >1':'JP.Ol*J!

A1.; T rHI l U A T E .'JT A C UL i A NUDA TC!i<3El.LARI A R>i 'r' '1CHUCOf.LA PJLtCHOETA Ol !GllC*<-<fTA Hl>lUD !'<E*\ PELEC1PODA XlPH<l!>UllA C 'f Cl t"i J DA 8 t? c '"1 l j ii ;l, Cl>lil!PtO!A "HS!DACEA cwqcEA A'1PH !PODA DEUPOD TOG*'IA rnA TOTAL GROUP 01 / 01 o.o 0.0 o.o 0.0 MEAN NO. * = BELOw REPORTABLE LEVEL * * * ** ---TA8LE 3.1.3-5 MACROINVERTEBRATE SEASONAL MEAN OENSTTY (NUMBERS/100 CUBIC METERS) *1978. 02/29 o.o o.o MEAN z 03/()1 -06/15 4.0 -22.0 12.9 0.0 -9.0 2.9 06/16 -09/15 22.() -28.0 25.7 1.0 -10.0 MEAN IW. MEAN NO. 'IEAN % *

  • 267 1. 58 * * *
  • It It 5 0.04 *
  • 1 3 0.11 *
  • 1 * * * * "
  • It. 7 0.06 * * *
  • 33 o. 21.1 * * *
  • 2 0.01 * * *
  • 7 0.04 * * *
  • 111162 96.87 91973 59.10 1
  • 18 0.10 1 5 0.13 50 0.29 202 1.75 466 2.76 82 0.71 61089 36.08 * * * * * * * * *
  • 111522 99.95 161873 99.96 * * *
  • 09116 -11/30 12/01 -9.5 -14.B o.o -12.2 0.0 2.0 -12.0 0.0 -7.6 o.o MEAN NO.

% MEAIJ NO. 21 0.42 *

  • 2 0.04 * * * * *
  • 2 0.04 *
  • 2 0.04 *
  • 41851 97.94 5 0.10 9 0.18 56 1 .13 5 0.10 99.99 IA SALEM ZP 1978 *
  • 12131 o.o o.o

% * * *

  • * * * * .* * * * **
  • TABLE .3.1.3-6 COLLECTED IN ASSOCIATION WITH THE PLANKrON COMMUNITr-1978.

... -----------------*------

---__ ... _ -----KEY: F = FRESH'.*AfER; 8 = f.iRi<C:<ISH; M-:: MARP11:.: T = TE:RRE:STRIAL

COi'l'lON NA1"1E C01'11B JELLIES ROTIFERS CLADOCERAN ( WATERFLEAS SCIENTIFIC

      • HOLOPLANKTON
      • CTENOPHORA SPECIES 8EROE 01/ATA MNEMIOPSIS LEIDY! ROTIFER SPECIES BDELLOIDEA SPECIES ASPLANCHNA SPP. BRANCHIONUS ANGULARIS B. CALYCIFLORUS
8. CAUDATUS B. OIVERSICORNIS B. HAVANAENSIS B. PL!CArIL!S
8. QLJADRIDENTATUS B. URCEOLARIS B. VARIABIL!S FlLINIA LONGISETA KELLICOTTIA BOSTONIENSIS K. LONGISPINA KERATELLA SPP. K. QLJADRATA LECANE SP. NOTHOLCA SPP. PLATYIAS PATULUS PLOESOMA SPP. POLYARTHRA SPP. ROTIFER A SYNCHAETA SPP. ALONA SP. BRANCHIOPODA SPECIES BOSMINA SPP. CERIODAPHNIA CHYDORUS SPP. OAPHNIA SPP. LEPTODORA KINOTII LEYDIGIA SP. MOINA SPP. 3.1-91 ORIGIN F F,8 8 f,8 F F F F F F F F F, B ,M F F F F F F F F F f,B F F IA SALEM ZP 1978 TABLE 3.1.3-6 CONTINUED

COM'lDN NAME SCIENTIFIC NAME ORIGIN ------------------------------------------------------------------ COPEPOD CALANOID CYCLOPOID HYDROMEDUSAE (JELLYFISH) SNAIL CLAM BARNACLE PARASITIC ISOPOD TflUE CRABS BLUE CRAB FIDDLER CRAB MUD CRAB *** HOLOPLANKTON

      • CONTINUED COPEPOD NAUPLII ACARTIA TONSA DIAPTOMUS SPP. EURYTEMORA AFFINIS LABIDOCERA AESTIVA PARACALANUS CRASSIROSTRIS P. PARVUS PSEUDODIAPTOMUS CORONATUS CYCLOPOIDA SPECIES CYCLOPS SPP. C. BICUSPIDATUS THOMAS! C. VERNALIS HALICYCLOPS FOSTER! OITHONA COLCARVA TROPOCYCLOPS PRASINUS LEPTINOGASTER MAJOR *** MEROPLANKTON
      • HYDROZOA (MEDUSAE)

HYDROZOA #1 (MEOUSAE) BOUGAINVILLIA SPP. NEMOPSIS BACHE! OBELIA SP. PHIALIDIUM SPP. B. VIRGINICA POLYCHAETE: EGGS POLYCHAETE LARVAE GASTROPOD LARVAE PELECYPOD LARVAE CIRRIPEDIA NAUPLII, CYPRIS AEGATHOA MEDlALIS BRANCHYURA MEGALOPS F,B,M B,M F F,B B,M B1M B1M B,M F,B,M F F F F18 B,M B,M B,M 81M B,M B, l>1 8,M B,M B B1M B B CALLINECTES SAPlDUS MEGALOPS B UCA MINAX ZOEA,MEGALOPS 8 RHITHROPANOPEUS HARRIST! ZOEA B MEGALOPS IA SALEM ZP 1978 3.1-92 * * * * * * *. * * * ** *

  • * * * * * * * * **-* COM 'ION NAME TABLE 3.1.3-6 co:,1TINUED SCI01TIFIC NA>>IE OIHGIN ------------------------------------------------------------------

SPONGE ANE"10NE FLATWORM 110UNDwORM SEG\IENTED WORM L E:E:CH SNAIL HORSESHOE CRAB WATER MITE SEE:D SHRIMP WATER BEAR COPEPOD CYCLOPOID HARPACTICOID FISH LOUSE CUMACEAN TANA ID *** TYCHOPLANKTON

      • MICROCIONA PROLIFERA ACTINIARIA SPECIES TURBELLARIA SPECIES NEMATODA SPECIES POLYCHAETE SPECIES OLIGOCHAETE SPECIES HIRUDINEA SPECIES RHYNCOCOELA SPECIES NUDIBRANCHIA F,8,M LIMULUS POLYPHEMUS TRILOBITE B1M LARVAE ACARINA SPECIES F OSTRACODA SPECIES TARDIGRADA SPECIES EUCYCLOPS AGILIS ERGASILIDAE ERGASILUS SP. ECTINOSOMA SPP. ECTINOSOMA CURTICONE SCOTTOLANA SPP. LAOPHONTE SPP. HARPACTICOIDA ARGULUS SPP. LEUCON AMERICANUS LEPTOCHELIA SAVIGNYI 3.1-93 F F181M F181M 81M B1M 8 B S,M F181M 8 IA SALEM ZP 1978 TABLE 3.1.3-6 CONTINUED

COMMON NAME SCIENTIFIC NAME ORIGIN ------------------------------------------------------------------ ISOPODA AMPiHPODA MYSID SHRIMP -OPOSSUM SHRIMP (;RASS SHRIMP SAND SHRIMP BLUE CRAB MUD CRAB INSECT ARROW WORM *** TYCHOPLANKTON

      • CONTINUED ISOPODA CASSIDINIDEA LUNIFRONS Ct-URIDOTEA SPP. CHIRIDOTEA ALMYRA CYATHURA POLITA EDOTEA TRILOBA MICRONISCUS LARVAE lRYPTONISCUS LARVAE BOPYRIDAE COROPHIUM SPP. GAMMARUS SPP. LEPTOCHEIRUS PLUMULOSUS MONOCULODES SPP * . MONOCULODES l*i E Ll T A N I T I D A ORCHESTIA SPP. HAUSTORIDAE SPECIES PARAPLEUSTES SPP. PARAMETABELLA CYPRIS NEOMYSIS AMERICANA PALAEMONETES PUGIO CRANGON SEPTEMSPINOSA CALLINECTES SAPIDUS POST MEGALOPS RHITHROPANOPEUS HARRIS!! POST MEGALOPS INSECTA DIPTERA LARVAE CULIClDAE LARVAE CHIRONOMlDAE LARVAE CHAETOGNATHA SPP. 3.1-94 F,S,M B B B F,B B,M 8,M B,M B,M F,B F,B 8 8 B 8 8 B B B,M S,M B B B,M 8 f,B,T F,B,T FPBPT F B,M IA SALEM ZP 1978 * * * * * * * * * * * *
  • * * * * ** * * * * *
  • TABLE 3.1.3-7 MEAN DENSITY (numbers/cubic meter), TOTAL DENSITY, AND CUMULATIVE PERCENT OF 10 PREDOMINP..NT MICROZOOPLANKTERS-

-1978 Major Annual Total Taxonomic Mean Annual Cumulative Rank Taxon ---Group Density Density % of Total % of Total 1 Cope pod nauplii Copepoda 27,014 540,290 40.7 40.7 w 2 Rotifer spp. Rotifer a 13,477 269,548 20.3 61.0 f-' 3 Acartia tons a Cope pod a 4,680 93,602 7.0 68.0 I Ul 4 Eurytemora affinis Copepoda 4,349 86, 977 6.6 74.6 5 Polychaeta eggs and larvae Annelida 4,043 80,856 6.1 80.7 6 Notholca spp. Rotifer a 3,360 67,192 s.o 85.7 7 Ectinosoma spp. Cope pod a 2,278 45,557 3.5 89.2 8 Gastropoda veliger larvae Gastropoda 1,432 28,645 2.1 91. 3 9 Keratella quadrata Rotifer a 1,309 26,176 2.0 93.3 10 Branc::hionus anqularis Rotifer a 945 18,899 1.4 94.7 IA SALEM ZP 1978 Rank 1 2 3 w 4 I-' I 5 \.0 °' 6 7 8 9 10 I * *

  • TABLE 3.1.3-8 MEAN DENSITY (numbers/100 cubic meters) AND CUMULATIVE PERCENT OF 10 PREDOMINANT MACROINVERTEBRATE PLANKTERS-1978 Major Annual Taxonomic Mean Taxon Group Density % of Total Neomysis americana Mysidacea 7,520 74.98 Rhithropanopeus harrisii Decapoda 1,926 19.20 Ganunarus spp. Amphipoda 215 2.14 Uca minax De ca pod a 124 1.24 Blackf ordia virginica Hydrozoa 92 0.92 Palaemonetes pugio De ca pod a 26 0.26 Edotea triloba *Isopoda 22 0.22 Coropllium spp. *Amphipoda 19 0.19 Brachyura Decapoda 16 0.16 Crangon septemspinosa Decapoda 14 0.14 Cumulative

% of Total 74.98 94.18 96.32 97.56 98.48 98.74 98.96 99.15 99.31 99.45 IA SALEM ZP 1978 * * * * * * * * * * *

  • * * * * * * * * * * * *
  • TABLE 3 .1. 3-9 MEAN SAMPLING DENSITIES (nurnbers/100 cubic rneterl BY DATE AND DEPTH OF THE 10 PREDOMINANT MACROINVERTEBRATES IN 1978 3/22 4/20 5/17 6/15 6/28 7/12 7/27 8/10 8/31 9/13 10/26-27 11/21-22 N. arnericana s 27 5 69 1,085 6,396 2,073 67 441 127 163 91 3lB B 430 1,421 591 66,999 46,499 9,376 8,925 8 ,514 8,287 25, 118 6,749 6,917 R. harrisii s 0 0
  • 28 3,096 8,577 6 ,580 6,750 853 1,153 " 1 B
  • 0
  • 169 2,427 7,'(.76 15,522 13,935 909 512 1
  • Gammarus spp. s 21 1 40 15 79 84 31 71 86 9 13 2 B 66 19 250 766 95*1 117 534 1,418 1,200 612 65 18 u. min ax s 0 0 0 8 2,183 204 166 11 0 1 0 0 B 0 0 0 4 1,961 72 291 4 0
  • 0 a . I w f-' B. virginica s 0 0 0 0 0 0 94 142 630 33 0 0 I B 0 0 0 0 0
  • 220 201 1,237 256 0 a l.D -J P. pugio s 0
  • 0 24 71 41 76 47 49 19 *
  • B 0 a a 8 47 80 271 107 60 11 a
  • E. triloba s
  • 0 *
  • 2 4 5 2 3 19 5 1 B 0
  • 1 3 47 44 161 17 60 144 22 4 Corophiurn spp. s l 1 3 3 4 34 21 17 1 2 14 11 B 4 2 4 6 7 45 60 77 8 24 20 77 Brachyura s 0 0 0 0
  • 1 25 13 2 t t t B 0 0 0 0
  • 4 95 157 10 t t t C. septemspinosa s 0 0 1 0 1 * *
  • 0 0 0 0 B 5 4 15 212 72 15 24 9
  • 18 9 5 t "' All Brachyura identified to species after B/31/78
  • Less than 1 s -surface, B c bottom IA SALEM ZP 1978 TABLE 3 .1. 3-10 MEAN SAMPLING DENSITIES (numbers/100 cubic meters) BY STATION AND DEPTH OF THE 10 PREDOMINANT HACROINVERTEBRATES, 1978 IPOl IP02 IP03 IP04 IP05 IP06 IP07 IP08 IP09 IPlO IPll N. americana s 890 109 232 4,369 3,308 236 654 105 2 48 4 B 8,963 8,889 22,433 13,614 20,088 39,202 11,414 27,574 13,325 6,874 2, 711 R. harrisii s 2,356 2,708 3,168 1, 724 3,750 3,048 1, 776 2,428 1,122 1,415 1,348 B 2,923 3,393 6,876 3,052 1,848 3,026 3,152 6,803 2,984 1,737 2,323 Gammarus spp. s 186 20 30 62 98
  • 6 4
  • 5 2 B 1,921 524 456 755 417 993 342 65 29 76 15 w u. minax s 16 142 145 0 468 1 111 1,098 42 324 12 B 4 60 I-' 115 16 73 30 49 1,564 9 12 206 I B. virginica s
  • 3 7 l.O 4 97 36 12 91 16 17 542 co B
  • 11 94 13 79 29 704 190 207 64 313 P. pugio s 24 21 30 9 51 27 33 34 10 25 35 B 36 30 68 22 36 22 57 67 87 43 66 E. triloba s l 2 5
  • 18
  • l 8
  • l 2 B 2 3 24 19 '73 57 20 87 74 50 so Corophium spp. s 9 16 5 3 71 * *
  • 0 *
  • B 26 75 35 33 106 13 6 3 3 2 4 Brachyura s 5 1 l 0 39 0 l l 0
  • l B 26 24 48 5 98 73 5 35 4 3 5 c. septemspinosa s 0 0 * *
  • 0
  • 0 0 1 0 B 4 22 68 6 56 69 30 50 . 31 17 l * "' Less than 1 S = surface, B = bottom IA SALEM ZP 1978 * * * * * * * * * * * * *
  • * *
  • Delaware * . * -o-Macro invertebrate ing) . stations o Mlcrazooplanktan sampling statlons __._ hll crozooplankton and h!acroinvertebrata
  • sampling stations MllH l 1 2 I I I I I 0 I 2 3
  • Kllometen.

N +

  • Zooplankton sampling stations-1978
  • PUlJLIC ELEC'l'HIC AND GAS cm.tPANY SALEM NUCLJ::,\H GENERATING STATION Figure 3.1.3-1
  • 3.1-99
  • w I-' I I-' 0 0 [01.1.' c []ti t catch .r.v , l \ drain plug PU13LlC ELECrnIC AND GAS SALEM NUCLEAH GENERATING STAT!O;'\
  • *
  • hinge mounting ring p 1 ankton net boat mount discharge hcsa plexlglass tuba I sampling bucket union mater centrifugal suction braco Filter pump plankton sampler Figure 3.1.3-2 * * * * * * * *
  • l..i.0000
  • \ 1ZOOOO ' , \ lJ ' , \ ' I I ...... ' .I \ *a ' I \ '£. ' 100000 ' \ * -§ \ \ 0 \ --.... 4 t' llOOOO \ ...... \ .. Microzooplankton

\ s:1 \ A v \ I \ . I 60000 \ I >. \ I * -\ I A I , 0 ' I E .ioooo ' , ' I ' ,A... ,' Q \ "' ' ........ ,i 41.l \* b-.. ,, .. 20000 .... "f{

  • 0 J F M A M J J A s 0 N D J * ..... v a :0000 Macrozoop lankton 0 --§ ()
  • 0 0 "' 20000 "' s:1 v "l;j >. -.cl ...
  • s:1 0 10000 a Q d 4) ::I! 0
  • J F M A M J J A s 0 N D J ** Temporal abundance of PUULIC l::!.ECTRIC AND GAS Microzooplankton and SALEM NUCLEAH GENERATING STATION Macro invertebrate plankton-1978 Figure 3.1.3-3
  • 3.1-101
  • IOOOOO G) Legend \ 0

______ \ \ A Jfolbolt:.I\ ti \ + \

  • t; I x thlz:u:hionU>

aneul"!.!!... 10000 ' a ' I .s I ' '/ \ / / p l llXlO I I \I I C) I I ',, ' I I I ' I

  • R l!l. IOO j ' I ' I ., ' \ ,/ ' ' Gi, JO ' ' ' ' b :S l * £1) ... ,,+--I-+,, --l--1 *. .t> 10 I -a /l' I ' I ' I Legend * "V lllah r=p x A Lor. rn.ngo
  • J F M A M J J A s 0 N D J * ,,_ . I
  • f Temporal abundance of Hotifer spp., r: PUJJLIC SCJ(V]CF.

t:!.L:CTR!G M:D G,\S ( cc: spp. r .!S.. quadra and ..§.. I i: Si\LEM NUCL!:.\!I STATION ... 1 ... u_1 ... a .... r ....... ... --1_9_7_s __ r: l Figure 3.1.3-4 u .' ** 3.1-102 *

  • l-000000 = Legend
  • b 0

.. 1l A ... o a !0000 .!! .g " ........ 1000 GI p, 1 \ ,/" ... , ... \ \ , 0 \ c;J' ', * \ r:l \ I ', I ioo \ I '0 \ I \ I .., \ I ::c Q I \ I \ I IO \ I \ I \ I \ I \ \ \

  • 5:1 201 ... --f ,,1 2:
  • iw /L, __ _t,+--1-+--

i* 0

  • 40 Legend v lli&h ron&<> x

_f )--l--*,'l,, u A Low ra.na* Cl) s ... 20 "' ;i * "' El r--!--i ., l-1 0 J F M A M J J A s 0 N D J

  • Temporal abundance of Polychaeta
  • PUlJLIC l::LEC'l'RIC Ar\D GAS and Gastropoda-1978 SALEM GENERATING STATION Figure .Ll . ..)-'.::l 3.1-103
  • 1000000 Legend 0

__ A .&.carU ... t.o1L"Ml + x m ... --f ,,1 A Pt !:' 10 ,,+-++---a --r 0 '° Legend v H !ah rllD£0 x . ,J--f---L,'f-u A Low r""i<> 0 " I o o 0 t l J 4 i (I l I . ., 10 II IJ IJ I .. It l6 I 1 Ii lrnll\.) r i l'UJJLIC SEIWICE J::U::C:Tmc AND GAS SALEM NUCL[AH GI.::NEHAT!NG STATION Length frequency distributions for N. americana -1978 Figure 3.1.3-8 3.1-106 * * * * * * * * * * ** *

  • * * * * * * * * *
  • 10000<> 10000 r. ,., .... <> a 1000 u Legend 0 0 0 "'-A .Ur.n 1nhu\.I :>.. +

* ::! 100 "' rl ... "ti ... ::I 10 zo 0* "° Legend 'V lllnh r-aa u x

.. "° "' r.. ... n. a .. 1:-4 J li'. M A M PUBLIC C.:!.EC'l'RIC J\N"D GJ\S COMP.u;y St.LEM NUCU!,\11 Gl::NEHATING STATlON ,,P' ....... I ""Q I ' I \ I \ I \ G1 \ J J A s G:J I I I I I I I I I I I I I I \ 0 I I I I I I I I I N D J Temporal abundance of R

  • h"arrisii, u. -minax, and Brachyura-197_8 Fiqure 3.1.3-9 3.1-107 l IOOOO G "\; Legend E 0

.!! 1000 /l Coro2Wum ?.P'R.: P, 0 , ' C> , ,' ' (if ... soo ' r; I I GI, I ' '11 ' I " ' ' ' I "' ' ' ., '0 ::i: JO m Legend V lligl> r=i* x J F M A M J J A S 0 N D J I PUJJL!C SClfflCE l.:LCCTHIC AND GAS SALE!.! NUCLJ:,\l' GSNLRATrnG S'L\T!ON Temporal abundance of Gammarus spp. and Corophium spp. 1978 Figure 3.1.3-10 3.1-108 * * * * * * * * * * *

  • * * * * ** * * * *
  • 0AMMAIUI ,,,,, ':h=i I ' DU 300 300 HO too ISO IOIJ .. G . . . 100 . lll'l I I t -

............ ._....,_. ....... .......... 410 IH SH 41D . 400 g 200 S ISO ! 100 -: '" ........................... ....... ... 4SO 400 3SO IOO HO 200 110 too .. ....... ......................................... ..;,_,_ Ii 0 ... IH IO . I -i R oa I 0 *::kn NOY

  • I 2 74 S 6 1 1 I 1 t to 11 tJ IJ 14 U t& l7 1" t9 20; UHGIHC**t PUlJLIC SERVICE J::LEC.'TRIC AND GAS COMPANY Length frequency SALEM NUCL8.\R GENERATING STATION for Gammarus distributions spp. -1978 Figure 3.1.3-11 3.1-109 J
  • B. VIRGINICA
  • *200 150 JUL 100
  • 50 0 >-250
  • u z 200 AUG ...., 150 :::> G 100 w
  • tr: u. *50
  • 0 150 100* SEP
  • 50 0 1 2 3 4 5 6 7 8 9 10 11 12*13 14 15 16 17 18 19 LENGTH (mm) * * ' ' PUlJLIC SEHVICE l:LECTR!C A?W GAS Length frequency distributions for B. vir9:inica

-1978 " Si\LEM NUCLL:.\H GENERATING STATION **-Figure 3 .1. 3-12 3.1-110 *

  • * ** Temporal abundance of P
  • Eug:io and PUIJLIC t;LECTRIC AMD GAS COMP ,u:y c. septemspinosa

-1978 -SALEM NUCLJ::,\H CI::NC:RATINC S'l'A'l'lON Figure 3.1.3-13

  • 3.1-111 l I \ p, PUGIO 1250 1200 200 150 100 so APR* JUN

........ ..... --....... 1350 400 350 :soo 250 200 150 100 JUL ,,. 50 u z 0-t-.,._-.--.--.- .......... -;::-.. .... ..... -.... ... ::> 1350 c,: ... 1300 AUG 350 300 250 200 1SO 100 so o,._q....__.._.. .......... .... --"'"'"------ ..... . 4501 400 1:0: .. . ... 'f'r=l .... 1---.------- SEP I I

  • I ** I I ,J'-r-,i I ' No:, 1 2 :l 4 S 6 7 8 9 . :20 lb*JO 31*3l Jt.*40 LENGTH (mm) PUlJLIC I::LECTl\lC AND GAS Length frequency distributions*

for P. 12uqio 1978'. SALEM NUCLC,\R GC!i:ERAT!NG STATION -Figure 3.1.3-14 3.1-112 * * * * * ** * * * ** *

  • * * * * * * *
  • a, iRILOllA 3.SO 250 200 150 100 iso .;UL o..-------------------_._-=

..... > u :i i.so ::t a :soo ... 250 200 150 voo 110 AUG __ __ _, ... 550 ISO 100 .so 0 . . 100 . so HP OCT . O>+---..---.----il-----.---..-------------- __ _,.. __ .._.....,..-.....,_N_O....,Y

  • 2 3 . 4 5 6 7 9 UNGTH (mml PUBLIC SEHVICE l!:LECTRIC AND GAS Length frequency distributions SALEM NUCLEAR GENERATING S'li\T!ON for E .* -triloba.

-1978" Figure 3.1.3-15 3.1-113 \ \ COROP'HIUM $PP, *:+1--t==-=F==T--..--.--.M..-A-lt .... *oo ISO.I r uo [_] . 200" MAY* IUN IUL ... 150 u :r: ... :> a .. '" .. 100 AUG ,00 . uo so o..---..---r--"'9--4--==1o---..- ..... OCT 300 . NOY 100 50 350hcs ' 2 3 4 5 UNGTH lnunJ 6 "I i PUBLIC Al\D GAS cm1p,u;y i Length frequency distributions for Corophium spp. -1978 SALEM GENERATING S'J'A'J'ION Figure 3.1.3-16 3.1-114 * * * * * * * * *

  • * * * * * * * * * * >-* U z ... :::i G Ill ... C. SEPHMSPINOSA
    i n .1 5:1 F9 Fl Fl Fl-'?t .-, i 5:1 F"t 5:1 1. I i=; s: 1 I I . I I j I I
  • I I I I i I F9 F"'\ i I I 1 2 :a 4 5 6 7 a 9 10 n 12 13 14 1.s 16 17 la 19 20 21-25 LENGTH (mm) MAR JUI. AUG SEP OC:T NOV . I i i l6*JO Jl*J5 J6*40 41*45 46*50 Sl*SS PUDLIC J::LEC:TRIC AND GAS cmtPANY SALEM NUCLEAR GI.::NERATINC S'l'ATION Length frequency distributions for septemspinosa

-1978 Figure 3.1.3-17 3.1-115

  • * * * * * * * * *
  • 3.1.4 Benthos (ETS Section 3.1.2.l.le)

Benthos of the Delaware Estuary has been studied since 1971. Objectives are to estimate and monitor changes in species diversity, distribution, density, and biomass. 3.1.4.l Summary The same eight taxa were taken at all stations in 1977 and 1978. Balanus improvisus, Scolecolepides viridis, and Cvathura polita ranked within the top six in both density and biomass in 1975-1978. Simple diversity (number of species) and the index of diversity were higher at the southern stations in 1978. Both measures of diversity were higher during the high salinity summer and fall months. The annual mean diversity index was highest at Station TSSi, 7.6 km southeast of Salem. Station T4S2, just south of Salem, had the highest annual meai simple diversity and the highest annual mean density and biomass of all stations in 1977 and 1978. Seasonally, mean density was greatest during July and August and mean biomass was greatest during March through June in 1978. The benthos community has not changed in the two operational years (1977 and 1978) from the pre-operational years (1971-1976). Review of the data on species composition and distribution, diversity, density, and biomass indicate no discernible impact on the benthos by Salem 1. 3.1.4.2 Materials and Methods FIELD AND LABORATORY The requirements of the Benthos ETS were satisfied. Triplicate samples were taken at 14 stations on six transects (Table 3.1.4-1, Fig. 3.1.4-1) monthly during March through November. Water depth and substrate description, based on visual inspection, at each station is reported in Table 3.1.4-2. All samples were taken during day2ight with a Ponar grab sampler which samples an area 0.05 rn to a depth of approximately 15 cm. In 1978, 126 collections (378 individual grabs) were taken and analyzed. For a more detailed description of sampling gear, gear deployment, 3.1-116 collection of physicochemical data and laboratory procedures see Volume 2 of the 1977 Annual Environmental Operating Report. TAXONOMIC CONSIDERATIONS In 1978 a continuing effort was made to identify all benthic invertebrates to the lowest taxonomic level. Wherever taxonomic changes relative to previous IA reports are made, the previously cited name is referenced. An organism referred to as Annelida in 1975-77 was re-identified to the class Turbellaria in 1978. 3.1.4.3 Results and Discussion GENERAL SAMPLE COMPOSITION A total of 79 taxa has been collected since 1971 (Table 3.1.4-3). In 1978, 60 taxa were collected. Organisms collected in 1978 but not in 1971-1977 include a flatworm, Turbellaria

  1. 1; the snail Hydrobia sp.; and an insect larvae in the Ceratopogonidae.

Twenty-three taxa were taken at from one to three stations (Table 3.1.4-4). Euplana gracilis, Eteone heteropoda, Diptera, Ceratopogonidae, Culicoides sp., and Bowerbankia gracilis were each represented by single specimens. Stylochus ellipticus, Doridella obscura, and Modiolus dernissus were taken only at T4S2 (gravel-shell substrate) in 22, 11, and 33 percent, respectively, of the total grabs taken (Table 3.1 .* 4-4). Parahaustorius sp. was collected at T3Sl (30 percent of total grabs), T3S2 (33 percent), and T7Sl (15 percent), (all with sand substrate). The remaining 13 taxa were taken infrequently. Many of these are at the northern limits of their range in the estuary. Organisms taken at all stations in the Salem study area in 1978 were Garveia franciscana, Sertularia argentea, Rhynchocoela,.Scolecolepides viridis, Paranais litoralis, Neomysis arnericana, Chiridotea almvra, Cvathura polita, Corophium lacustre, and Crangon septemspinosa. These, except for almyra and C. septemspinosa, had been taken at all stations also in 1977. viridis, a polychaete, and C. polita, an isopod, had a high percent occurrence at almost every indicating their importance in the study 3.1-117 * * * * * * * * * * *

  • * * * * * . * * * * *
  • area. Q. franciscana, a hydroid, had its highest percent occurrence at T2S2 (100 percent), T4S2 (100 percent), T2Sl (96 percent), T4Sl (96 percent), and T8S2 (96 percent).

S. argentea, a hydroid, had its highest percent occurrence T4S3 (96 percent) and T4S2 (93 percent). Rhynchocoela, a nemertean worm, had its highest percent occurrence at T4S2. (93 percent) and T5S2 (85 percent). P. litoralis, an* oligochaete, had its highest percent occurrence (100 percent) at T2Sl, T4Sl, T4S2, and T8S2. It had a very low percent occurrence (4-41 percent) at T3Sl, T3S2, T7Sl (sand substrate), and T7S2 (hard clay substrate). C. almvra, an isopod, had its highest percent occurrence at-three sand stations, T3S2 (81 percent), T3Sl (74 percent), and T7Sl (67 percent), thus demonstrating a sand substrate preference. N. americana septemspinosa had a low percent occurrence at almost every station. Edotea triloba, Gammarus spp., and Monoculodes edwardsi were taken at 13 of 14 stations in 1978 with a low percent occurrence at all stations. Other taxa widely distributed in the study area were Hartlaubella gelatinosa, Turbellaria, Tricladida, Nereis succinea, Polydora sp., Oligochaeta

  1. 1, Macoma balthica, and Leucon americanus
  • SPECIES DISCUSSION Balanus improvisus, Scolecolepides viridis, and Cyathura polita ranked within the top six species in both density and biomass in 1975-78. Paranais litoralis and Polydora sp. also ranked within the top six species in density for all four years and Turbellaria ranked in the top six in density in 1977 and 1978. The high ranking of these organisms in density and biomass indicates their importance in the community structure.

These six species, which comprised 76.3 percent and 53.9 percent, respectively, of the annual mean density and biomass, are discussed below. P. litoralis, an oligochaete, ranked first in density and 17th in biomass (Table 3.1.4-5). Annual mean density of this species was greatest at T4Sl. It occurred at every station during the year with a percent occurrence > 89 percent at 9 of the 14 stations (Table 3.1.4-4). It had a lower percent occurrence at stations with predominantly sand substrates (T3Sl, T3S2, T7Sl) and clay substrates (T3S3, T7S2). P. litoralis occurred in 266 grabs or 70.4 percent of the annual sample (Table 3.1.4-5) . improvisus, a barnacle, ranked second in density and first in biomass (Table 3.1.4-5). Annual mean density and 3.1-118 biomass at Station T4S2 were higher than all other stations. The occurrence and abundance of this species is directly related to availability of substrate, e.g., gravel and shell, which is suitable for setting of larvae. It occurred at 10 of the 14 stations sampled during 1978 but its percent occurrence was high at only T4S2 (93 percent) (Table 3.1.4-4). The amount of suitable substrate in the study area is reflected in the occurrence of B. improvisus in only 17.2 percent (65 grabs) of the total grabs (Table 3.1.4-5). Despite the apparent lack of suitable substrate, this species ranks high in the annual sample due to its extremely high density and biomass at T4S2. £. viridis, a polychaete, ranked third in density and second in biomass (1976-78) (Table 3.1.4-5). Annual mean density and biomass of this species were highest at T2S2 and also were high at most other stations except T7S2. s. viridis had the highest.number of occurrences (319) of any taxa and was found at every station (Tables 3.1.4-5, 3.1.4-4). The only relatively low percent occurrence (30 percent) of this polychaete was at T7S2 which is dominated by another spionid polychaete, Polydora sp. The high ranking of £. viridis in density and biomass and its hiqh percent occurrence at every station indicates the importance of this resident species. Turbellaria, a flatworm, ranked fourth in density and 22nd in biomass (Table 3.1.4-5). Annual mean density and biomass of this species*was highest at T3S2 (sand substrate) and high only at T2S2, T3Sl, and T7Sl (all with sand substrate). It occurred at 11 of the 14 stations sampled during 1978 but its percent occurrence was relatively high at only T2S2 (67 percent), T3S2 (63 percent), T3Sl (44 percent), and T7Sl (37 percent) (7able 3.1.4-4). Turbellaria occurred in 18.8 percent (71 grabs) of the total grabs (Table 3.1.4-5). Polydora sp., a polychaete, ranked fifth in density and 18th in biomass (Table 3.1.4-5). Annual mean density and biomass of this species were highest at T7S2. This species occurred at 11 stations but had a relatively high percent occurrence at only T7S2 (96 percent), T3S3 (52 percent), and T5Sl (52 percent) (Table 3.1.4-4). This polychaete occurred in 25.4 percent (96 grabs} of the total grabs (Table 3.1.4-5). £. polita, an isopod, ranked sixth in density and biomass and was taken at all stations (Tables 3.1.4-5, 3.1.4-4). Annual mean density of this species was highest at T5Sl. C. oolita had the second highest number of occurrences (303) and was taken in 80.2 percent of the total annual grabs (Table 3.1.4-5). This isopod had its lowest percent occurrence (30 percent) at T3S2, a station with a sand substrate (Table 3.1.4-4). It had a relatively high percent 3.1-119 * * * * * * * * * * ** *

  • * * * * * * * **
  • occurrence

(>46 percent) at all other stations. Its high ranking for and biomass and its high number of occurrences throughout the study area indicates the importance of this species . STATION DISCUSSION Station T2Sl This inshore station with a substrate of fine sand, clay, and some detritus (Table 3.1.4-2) is on the northernmost transect (2ig. 3.1.4-1). It ranked eighth i2 density (2,460.0/m ) and 13th in biomass (613.6 mg/m ) in 1978 (Table 3.1.4-6). The top three ranking taxa 1 P. litoralis, viridis, and£. polita, comprised 84.3 and r1.9 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5) . Station T2S2 This station has a substrate of sand interspersed with clay and (Table 3.1.4-2). It ranked sixth density (2,815.6/rn ) and fifth in biomass (1,694.9 mg/m ) (Table The top three ranking taxa, Turbellaria, c. lacustre, and S. viridis, comprised 88.5 and 75.5 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5). Station T3Sl This station had a substrate of fine sand with small amounts of mud and (Table 3.1.4-2). It ranked 12th in 2 density (1,511.1/m) and third in biomass (3,025.4 mg/m) (Table 3.1.4-6). The high ranking in biomass is due mainly to the very high occurrence of Gammarus spp. in May. The top three ranking taxa, Gamrnarus spp., s. viridis, and Turbellaria, comprised 77.0 and 73.8 percent, respectively, of the annual mean density and biomass at this station (Table 3. 1. 4-5) . 3.1-120 I_ Station T3S2 The substrate at this station consists of black sand with very little mud and (Table 3.1.4-2). It ranked thir2 in density (3,157.0/m ) and 11th in biomass (752.6 mg/m) (Table 3.1.4-6). The top three ranking taxa, Turbellaria, C. almyra, and viridis, comprised 92.6 and 70.4 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5). Turbellaria accounted for 80.1 percent of the annual mean density but only 2.5 percent of the biomass. Station T3S3 The substrate at this station consists of clay and organic mud, some sand, and (Table 3.1.4-2). It ranked llth 2 in density (l,795.6/rn ) and 12th in biomass (674.4 mg/m) (Table 3.1.4-6). The top three ranking taxa, Polvdora sp., s. viridis, and P. litoralis, comprised 69.1 and 25.9 respectively; of the annual mean density and biomass at this station (Table 3.1.4-5). Station T4Sl The substrate at this station consists of organic mud, clay, and detritus (Tabl2 3.1.4-2). This station ranked secon2 in density (3,169.6/m ) and fourth in biomass (1,727.5 mg/m ) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, s. viridis, and E. triloba, comprised 85.6 and-38.0 percent, respectively, of-the annual mean density and biomass at this station (Table 3.1.4-5). P. litoralis accounted for 73.3 percent of the annual mean-density but only 2.0 percent of the biomass. Station T4S2 The substrate at this station consists of sand, gravel, shell, mud, and detritus (Table This station rank2d first in density (7,831.1/m-) and biomass (12,315.9 mg/m) (Table 3.1.4-6). The top three ranking taxa, B. 3.1-121 * * * * * * *. * * * ** *

  • * * * * * .* * * * **
  • improvisus, litoralis, and N. succinea, comprised 79.7 and 72.7 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5) . Station T4S3 The substrate at this station consists of clay and detritus (Table 3 2 1.4-2). It ranked last of 14 stati2ns in density (667.4/m ) and 10th in biomass (l,.096.3 mg/m ) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, S. viridis, and N. americana, comprised 68.5 and 24.0 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5) . Station T5Sl The substrate at this station consists of sandy clay and detritus 3.1.4-2).

It ranked fourth in ae2sity (2,880.0/m ) and seventh in biomass (l,666.4 mg/m ) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, C. polita, and Polydora sp., comprised 46.6 and 14.4 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5) . Station T5S2 The substrate at this station consists of sand, gravel, shell, organic mud, and some detritus (Table 2 3.l.4-2). This station ranked sevent2 in density (2,506.7/m) and second in biomass (3,095.9 mg/m) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, viridis, and f* polita, comprised 73.5 and 20.6 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5)

  • Station T7Sl The substrate at this station is composed mainly of fine black sand with some clay and detritus (Table 1.1.4-2).

This station ranked 13th in density (l,093.3/m ) and eighth 3.1-122 in biomass (1,313.6 mg/m 2) (Table 3.1.4-6). The top three ranking taxa, s. viridis, Turbellaria, ana Gammarus spp., comprised 73.7-and 58.6 percent, respectively, of the annual mean density ana biomass at this station (Table 3.1.4-5). Station T7S2 The substrate at this station is composed mainly of hara clay (Tabli 3.1.4-2). This station ranked 19th in density (1,991.9/m ) ana 14th in biomass (562.7 mg/m ) (Table 3.1.4-6). The top three ranking taxa, Polyaora sp., £. polita, ana Gammarus spp., comprised 93.3 and 56.9 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5). Polydora sp. accounted for 82.2 percent of the annual mean density and 14.0 percent of the biomass at this station. Station T8Sl This station a substrate of organic mud with detritus ana sand (Iable 3.1.4-2). It ranked fifth in a2nsity (2,829.6/m) ana ninth in biomass (1,189.3 mg/m ) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, N. americana, and c. polita, comprised 54.l and 22.9 percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5). Station T8S2 The substrate at this station is composed of organic mud, sand, and some det2itus (Table 3.1.4-2). It ranked in density (2,151.9/m ) and sixth in biomass (1,671.2 mg/m ) (Table 3.1.4-6). The top three ranking taxa, P. litoralis, S. viridis, and£* polita, comprised 88.1 and percent, respectively, of the annual mean density and biomass at this station (Table 3.1.4-5). 3.1-123 * * * * * * *. * * * * *

  • * * * * * ,. * * * **
  • SPECIES DIVERSITY Analysis of

<H'lersii.:y [lrovides a nH.:-an:3 of r.:letecting changes in community structure. Two components of species diversity are species richness (number of species) and the numbers of individuals in each species. The mean number of species at each station in 1978 ranged from 9 at T3S2 and T7S2 to 22 at T4S2 (Table 3.1.4-7). In 1977, the range was from 9 at T3S2 to 24 at T4S2. Salinity and sediment type are two principle parameters controlling species composition and abundance. Mean simple diversity (number of species) per region was higher at the southern stations (i = 17) than at the northern stations (X = 11). Mean simple diversity ranged from 9 to 13 in the northern transects (2, 3, 7) and from 13 to 22 in the southern transects (4, 5, 8) . Maximum mean simple diversity per month occurred in November (X = 16) (Table 3.1.4-7). Other months with high diversities were August and October (X = 15). This correlated with high salinity during August through November. The mJ:nimum mean simple d"iversi ty occurred in April and June (X = 12). The maximum monthly number of species per station was 28 at T4S2 in July and November (Table 3.1.4-7). The minimum number was five at T7S2 in April and May. This low diversity is probably due to the hard clay substrate and the low salinity

  • Maximum annual mean simple diversity per station occurred at station T4S2 (X = 22) which has a gravel and shell type substrate (Table 3.1.4-7).

Minimum simple diversity occurred at stations with sand or clay substrates. Annual mean simple diversity was lowest (X = 9) at T3S2 (sand substrate) and T7S2 (clay substrate), ranking just behind T2S2 (sand substrate) and T3S3 (clay substrate) (X = 10). Another measure of diversity is a diversity index. One common index which accounts for both components of species diversity is the Shannon-Weaver index (Shannon and Weaver, 1963). This function is recommended by that U.S. Environmental Protection Agency (Weber, 1973) for calculating mean diversity. The yearly mean diversity index per station ranged from 0.857 at T7S2 to 1.993 at T5Sl (Table 3.1.4-7). In 1977, the range was from 1.028 at T3Sl to 1.974 at T5Sl. 3.1-124 The mean diversity index per region was higher at the southern stations (D = 1.601) than at the northern stations (D = 1.167). It ranged from 0.857 to 1.337 in the northern transects (2, 3, 7) and from 1.048 to 1.993 in the southern transects (4, 5, 8) (Table 3.1.4-7). This trend correlates with salinity. The maximum mean diversity index per month occurred in October (D = 1.637) and the minimum occurred in July (D = 1.138) (Table 3.1.4-7). The low diversity in July was due to the numerical dominance of Polydora sp., Paranais litoralis, and Balanus improvisus, which represented 71.7 percent of the monthly sample. The maximum. monthly diversity indices per station occurred at T5Sl (D = 2.395) and T7Sl (D = 2.385) in September as a result of the high salinities. _The minimum indices occurred at T7S2 in August (D = 0.112) and at T3S2 in May (D = 0.289). These resulted from the numerical dominance of Polydora sp. at T7S2 and Turbellaria at T3S2. The maximum annual mean diversity indices per station occurred at T5Sl (D = 1.993) which has a sandy clay substrate, and at T8Sl (D = 1.846) which has an organic mud and detritus substrate. Station T4S2, which has a gravel and shell substrate, and ranked first in simple diversity, did not have a high index of diversity due to the numerical dominance of Balanus improvisus. The minimum mean diversity indices occurred at T7S2 (D = 0.857) which has a hard clay substrate and, at T3S2 (D = 1.031) which has a black sand substrate. Station T7S2 was dominated numerically by Polydora sp. and T3S2 was dominated by Turbellaria. DENSITY In the annual mean density per station ranged fro2 at T4S3, just southwest of Salem, to 7,831.1/m , at T4S2, just south of 2 Salem (Table 3.1.4-6). In 1977, it ranged fro' 944.7/m at T3Sl, just west of Salem, to 12,471.3/rn at T4S2. Balanus improvisus was the most abundant organism at T/lS2 in 1978, comprising 60 percent of the annual total. Organisms at this station comprised 21.2 percent of the 1978 sample. Total density at Station T4S2 was higher than all other stations for 5 of the 9 sampled. Total density was highest at T4S2 in due to the very high density improvisus (11,687/m ) which comprised 82.9 percent of the monthly total. 3.1-125 * * * * * * * * * * * *

  • * * * * * * * * **
  • Paranais litoralis density= 674.2/m 2), Balanus 2 improvisus (370.8/rn

), and Scolecolepides viridis (309.4/m) comprised 25.6, 14.1, and 11.7 percent, respectively, of the 1978 3:1.4-5l. In +/-977r (X = 728.4/m 1, B. improv1sus (026.1/m ), anci .§_. v1r:i..dJ.s (520.3/m ) comprised 26.2, 22.5, and 18.7 percent, respectively, of the annual mean density. Other numerically important organisms in 1978 were Turbellaria, Polvdora sp., Cyathura polita, and Corophium lacustre. These seven taxa comprised 80.7 percent of the annual mean density. P. litoralis was the numerically dominant taxon in March, May, September, and October (Fig.3.1.4-2). Other taxa which ranked first were Polydora sp. in July and August, B. improvisus in June, C. lacustre_ in !:Jovember, and Turbellaria in April (Figs. 3.1.4-2). Also ranking among the first three on a monthly basis were S. viridis, Neomysis americana, and C. polita

  • BIOMASS Estimated mean biomass per statiori ranged 562.7 2 mg/m 2 at T7S2, 3.7 km northwest

'of Salem, to 12,315.9 rng/m at T4S2, just south of sa1em (Table 3.1.4-6). In 1977, it ranged from mg/m at T3S3, 3.0 km west of Salem, to 15,988.4 mg/m at T4S2. Balanus improvisus comprised 65.9 percent of the biomass at T4S2 in 1978. Total biomass at Station T4S2 was higher than all other stations for 7 of the 9 months sampled. Balanus improvisus (646.3 mg/m 2) comprised 28.8 percent of the biomass of all taxa taken in 1978 (Table 3.1 2 4-5). Scolecolepides viridis ranked second (406.8 mg/m ) 18.1 percent, and Macoma balthica ranked third (243.7 with 10.9 percent. In 1977, B. improvisus (810.3 mg/m ) comprised 33.2 percent of the of all taxa. .§_. viridis ranked second (504.1 mg/m ) 20.6 percent, and M. balthica ranked third (309.9 mg/m ) with 12.7 percent. In June, July, August, and November 1978 B. improvisus comprised the highest monthly biomass (Fig.3.1.4-4). s . viridis ranked first in March, April, and September, Gammarus spp. ranked first in May, and M. balthica ranked first in October. Other taxa ranking among the first three on a monthly basis in 1978 were Microciona prolifera, Crassostrea virginica, Cyathura polita, and Crangon septemspinosa (Fig. 3.1.4-5). 3.1-126 3.1.4.4 Seasonal Summary Seasonal mean abunaance of the preaominant benthic taxa is reported in Table 3.1.4-8. Mean aensity was greatest auring July ana August due to the abundance of Polychaeta (32.1 percent) I Balanus improvisus (23.5 percent), ana Oligochaeta (22.7 percent) (Fig.3.1.4-6). Mean aensity was lowest auring September through November. Oligochaeta rankea first in aensity auring March through June ana September through November. Polychaeta rankea first auring July and August ana ranked second during March through June and September through November. B. improvisus ranked second during July and August. Mean biomass was greatest during March through June due to the abundance of B. improvisus (32.5 percent) and Polychaeta (22.6 percent) (Fig.3.1.4-7). Mean biomass was lowest during July and August. improvisus ranked first in biomass during March through August. Pelecypoda ranked first during September through November ana ranked second during July ana August. Polychaeta rankea second during March through June and September through November. 3.1-127 * * * * * * * * * * *

  • Loc,:ition Trllnsect 2
  • Station l: Station 2: Transect 7
  • Station 1: Station 2:
  • Transect 3 Station 1: Station 2:
  • Station .3: Transect 4 Station 1:
  • Station 2: Station 3:
  • Transect B Station 1: Station 2:
  • Transect 5 Station l: Station 2: *
  • TJ\nLE 3.1.4-1 LOCATION 0[.' nENTllOS STATIONS AND Prrnrno OF SAMPLING -1978 Description Two hundred meters west of New Jer-sey shor-t: (Eagle Island). On a line between white buoy "D" and cable tower-which is dir-ectly east (90 dcgr-ees).

Fifty meters west of white buoy "B". About 50 meters from shore of Artificial Island on a line fr-om Bayview lighthouse and red buoy "2R". Midway between Reedy Island Dike and Delawar-e River channel on a line between Bayview lighthouse and red buoy "2R"

  • About 50 meter-s offshore Artificial.Island, from a point 300 meters upstream from site of plant discharge.

About 200 meters from red buoy R"4B" on a line with this buoy and Bayview lighthouse

  • Years s.1rnpleed 1971 tD 1971 to Present 1972 to Present 1*972 to Present 1971 to Present 1971 to Present About 200 meters downr-iver from bell buoy R"2" 1971 to Present on a line with light buoy and smoke stacks at Getty Petroleum.

Sample in cove by Sunken ships about 100 meters 1971 to Present from north bank and 200 meters from east end of cove

  • On a line between Taylors Bridge Light and Stony Point 250 meters from the.New Jersey shore. On a line between Taylors Bridge Light and Stony Point 400 meters from the New Jersey shore
  • 1971 to Present 1971 to Present Halfway between Hope Creek Jetty and llad 1972 to Present Horse Creek and 100 meters offshore.

Midway between Alder Cove and black buoy "7L", 1972 to P.resent 150 meters off small sandy beach in front 1971 to Present of Mad Horse Creek Tower. Midway between Mad Horse Creek Tower and 1971 to Present channel buoy "6L"

  • IA* SALEM D 1978 3.1-128
  • *
  • Tl\nl.r. J .1. 4-2 LOCATION, DEPTH, SUDSTRllTE, ANO NUHDER or CRl\BS -1978 Fhh Survey Approximate Depth (Hean Low Water) No. ot crabo Trawl Zone Subntrate 1978 Treneect 2 Station l !-5 l,O 3.5

!inc c,ind, clay, and* aome detritus 27 Station 2 !-5 7,0 24.0 Sand vlth

  • clay and dctcitue 27 Transect 3 Station l E-2 4,0 13.0 Fine black sand, some mud, and dctrl.tus 27 Station 2 !-2 6.0 20.0 Coarse black sand, very 11 ttle mud, and detritus 27 Station 3 11-l 3.0 10.0 Clay and organic mud, some
  • sand, and detritus 27 Trennect .C Station l E-1 1.0 3.0 mud, clay, and detritus 27 Station 2 !-1 5.0 16.5 Sand, gravel 1 shell, some lilud, and detritus 27 station 3 E-1 9.0 30.0 Clay and detritus 27
  • Transect 5 Station 1 SE-3 l.5 5.0 Bard sandy clay and detritus 27 StBtion 2 SE-3 5.0 16.5 Sand, gravel, shell, organic mud, and some detritus 27 Tr.e.nsect 7 Station l E-4 4.0 13.0 Fine black sand, some clay, end detritus 27
  • Station 2 RIE-2 6.5 22.0 Hard cla;Y, very little detritus 21 Transect 8 Station l SE-3 l.5 5.0 Organic mud, detritus and some sand 27 Station SE-3 4.5 15.0 Organic mud, sand, and some detritus 27
  • IA SALEH B 1978 * *
  • 3.1-129 *
  • w f--1 I f--1 w *o *
  • Cnidaria Platybolmintho11 Rhynchoc:oela AAn<11lida Kollu*ce *
  • Order Poec Uoscle.r ida Uydrozoa Athecata Thee a ta Actiniaria Class Turbellaria Tricladida PolyclAdia Class Polycha*t*

Phyllodocida Sp ion id a Terebellida Class Oligochaeta Clase Hirudinea Class Gastropoda l'lesogastropoda Cephalaspidea Nudibranchia Class Pelecypodc Pteroconchida B*t*radontida

  • * * *
  • TABLE 3.1.4-3 PHYLOGENE'l'IC LIST OF BENTllIC INVERTEBRATES

-1978 Family Genus -.--Microcionidae Hicrociona Clavidae Cordylophora Bougainvilliidae Garve la Campanularidae Hartlaubella Campanulinidae Sertularidae Sertularia Diadumenidao Diadumene

    • *Turbellaria u Stylochidae Stylochua Leptoplanidae Euplana Phyllodocidae Eteone Nereidae Laeonereia Ne re is Glyceridae Glycera Goniad idae Glycinde Spionidae Polydora Polydora Scolecolepidea Streblospio Sabellariidae Sabellaria Pectinariidae Pcctinar ia Ampharetidae Hypaniola
    • *01 lgochaatai 11 Naididae Paranais Hydrobi idae llydrobia Py ramidel 1 id1111 Turben Ula Corambldae Doridella 11ytilldae Modiolus Ostreldae Crassosti:eo:

Dreissenidae Conger ill Tellinidae Ha coma Ha coma Solenidae MactridH Mulini.i:. Rangia HyacidH Hye Species prolifera (Ellis and Solander 1786) caspia (Pallas 1771) franciscana (Torrey 1902) gelatinosa (Pallas 1766) argentea Linne 1758 leucolena (Verrill 1866) ellipticue (Girard 1850) gracilis (Girard 1850) heteropoda Hartman 1951 culveri (Webster 1879) succinea (Frey and Leuckart 1847) dibranchiata Ehlers 1868 solitaria Webster 1879 sp. ligni Webster 1879 viridis (Verrill 1873) benedicti Webster 1879 vulgar is Verrill 1873 gouldii (Verrill 1873) grayi Pettibone 1953 litoralis (Hullar ,i784) sp. sp. obscura (Verrill 1870) demlssus (Dillyn 1817) virginica (Gmelin leucophaeta (Conrad 18311 balthica (Linne 1758) tenta (Say 1634) lateral is (Say 1822) cuneat* (Gray 1031) ar&nacia (Linne 1758) Year of Capture 197 2-73 1976-78 1971-73, 1975-77 1971-78 1977-78 1971-78 1977-78 1971-78 1973-78 1975-78 1978 1977-76 1972-78 1976-78 1973-78 1973-74, 1976-78 1973-78 1971-78 1973-77 1974, 1976-78 1973-78 1977 1973-78 1973-78 1976-77 1977 1975-70 1971-78 1973-78 1971-78 1971-75, 1971-78 1975-78 1978 1975-77 1975-76 1974-75, 1977-78 1976-70 1971-78 1971-78 1972-74, 1976 1971-78 1975-77 1977 1974. 1976-78 1971-76 1975-79 IA SALEM B 197B * *

  • w I-' I I-' w I-'
  • Phylu!'! Order ArthroE'Odl!l Xiphosuridft Acarina Thoracica Mysidacea Cumacea Isopoda Decapoda Dlptera l'!ctoproctei Ctenostomat&

Cheilosto111at11 Chordatn l!l'leurogonm

  • Descriptive

.. ., UndeteTI!li.ned

  • * *
  • TABLE 3.1.4-3 CONTIHUED Famil;( Ge Limulidae Limulus Balanidae Dalanus Mysidae Neomysis Leuconidae Leu con Idoteidae Chiridotea Edotea Anthuridae Cyathura Sphaeromidae Cassidinidea Photidae Leptocheirus Corophiidae Corophium Gammaridae Gammarus Melita Haustoriidae Parahaustorius Oedicerotidae Monoculodes Pleustidae Parapleustes Caprell idae Palaemonidae Palaemonetes Crangonidae Crangon Portunidae Callinectes Xanthidae Panopeus Rhithropanopeus Tipulldae Cera1:opogonidae Cullcoides Chironomidae Vesicularidae llmathia Bowerbankia Walkeriidae AeverrUlla Kembraniporidae Holgulid.::;e Holgula *
  • SEecies Year of Ca2ture polyphemus (Linne 1758) 1977 1971 improvisus Darwin 1854 1971-78 americana (Smith 1873) 1971-78 americanus Zimmer 1943 1972-78 almyra Bowman 1955 1971-78 triloba (Say 1818) 1971-78 polita (Stimpson 1855) 1971-78 lunifrone (Richardson) 1972-73, 1976-78 plumulosue (Shoemaker 1932) 1971-78 lacustre Vanhoffen 1911 1971-78 spp, 1971-78 nitida Smith 1873 1972-78 sp. 1973-78 edwardsi Holmes 1905 1973-78 sp. 1976-78 1972, 1977 pugio (Holthius 1949) 1971-75, 1978 septemspinosa (Say 1818) 1971-78 sap id us Rathbun 1896 1974-76 herb st ii Milne-Edwards 1834 1971 harrisii (Gould 1841) 1971-78 1972-73, 1978 1972, 1976 1978 sp. 1975, 1978 1971-78 1975-78 vidovici (Heller 1867) 1971-78 gracilis Leidy J,855 1977-78 armata (Verrill ,1874 1975, 1977 1975-78 (DeKay 1843) 1972, 1976-77 IA SALEH B 1978 * * * * *
  • * * * * * * * * * * *
  • TABLE 3 .1. 4-4 PROPORTION EACH TAXON OCCURRED Itl TOTAL SAMPLES -197B Ta.i:en Transect 2 3 4 5 7 B at n/l4 Station 1 2 l 2 3 l 2 3 -i--2 _1 ___ 2 r--z H. prolifera

-.04 .22 .11 -.04 .04 .19 -.37 .* 04 .07 -.37 10/14 Hydrozoa --------.11 ---* 0 4 -2/H G. franciscana .96 1.00 .74 .70 .70 .96 1.00 .93 .48 .89 .74 ,41 .48

  • 96 H/H Ca:::;nnularidae

--.04 --.04 ---.07 ---.04 .4/H H. gelatinosa .04 ,04 .04 --.04 .11 .15 .04 .22 .07 -.04 .04 11/H Ca:'!?anulinidae .04 -.07 -.04 -.22 -.22 .07 .07 -.07 -S/H S. argentea .7B .19 .63 ,44 *.-67 .59 .93 .96 .04 .78 .52 .67 .15 .89 14/H D. leucolena

.04 -.04 -:.. ---2/14 Turbellaria

.04 .67 .44 ,63 .04 -.04 .07 .19 -.37 -.07 .07 11/H Turbellaria 11 -----.07 ------.07 -2/l 4 "!'riclaCida .37 .07 .04 -.07 .44 ,19 .07 .22 .19 .04 -.30 .04 12/H S. ellipticus ------.22 -------l/H E. gracilis -----.04 -. -------1/14 R:iy:-. .::-.ocoela .41 .4,l .37 .22 .26 .74 .93 .33 .70 .85 .48 .26 .. Bl .Bl H/:4 E. pod a ---------.04 ----l/H L .. culveri -----.11 --------1/14 N. succ inea .04 .04 --.22 .44 .* 89 -.78

  • 33 .07 .26
  • al .11 11/14 G. solitarla

.11 --.* 04 .11 .04 4/H Pol;-:lora sp. --.04 .04 .52 .11 .48 .19 .52 .11 .15 .96 .44 -11/!4 S. viridis l.00 1.00 .89

  • Bl. .59 .63 .Bl .93 .96 .93 .96 .30 l.00 l.00 H/H s. b*necicti

.07 .15 .04 .44 .33 --.26 .04 7/H II. <;<3)0 i .04 -------.* 07 -----

w .01 --.04 -.11 .11 .04 .22 --.04 .11 .04 . 01 11 .04 .04 .11 --.63 .89 .19 .96 l.00 .11 .04 l.OO .37 12/H f-' P. litoralis 1.00 .89 .26 .04 .48 l.00 l.00 .B9 .96 .93 .H .04 .96 1.00 H/14 I Hirudine3

.04 ---.04 ----2/H f-' Gastropoda

.19 -.07 .07 ---.04 4/14 w llydrobia sp. ----. .07 .11 -.26 ---.11 .04 5/H N !>udibranchia

.04 -----.04 -------2/14 o.

* -.11 -------l/!4 :-:.. de::-issus

.33 -------J/H C.

--.04 ---,63 -.04 -----*3/! H. .15 .04 .04 -.11 .59 .59 .59 .37 .Bl .04 -.78 .67 12/14 11. lateralis

.07 -.11 --* 0 4 .11 {/H H. arenaria ------,04 -.19 ---.07 -3/14 B. i:rtJrov is us *-.04 .04 -.19 -.93 .11 .37 .22 -.04 .JO .19

n. a:r.ericana .26 .37 .44

.56 .48 .44 .52 .44 .52 .4B .H .33

  • 4 B .48 14/H L. ar:-.er icanus .19 -.04 .07 .19 .33 .04 .11 -.37 .04 .04 .19 .19 12/H G.

.22 .67 .74 .Bl .11 .15 .04 .04 .19 .07 .67 .07 .01 .ll l .;/ l E. .33 -.04 .04 .37 .56 .30 .07 .26 .26 .11 .26

  • 4 B .15 13/H C. pol lta .96 .H .56 .30 .85 .96 l.00 .s9 .96 .89 .63 .93 l.00 .as l 4/1.; C. lcni!rons ----.04 -* 04. -------21:; L. plu,,-.ulosus
  • 74 ----.19 .04 -* 78 .04 --* 7a -6/H C. lac:.:stre .33 .26 .22 .04 .15 .30 .78 .07 .56 .11 .19 .22 .41 .04 H/H spp. .JJ .u .33 ,26 ,40 ,37 .44 .30 .33 .01 .26 .41 .22 -lJ/ J; Ii. nl t ida ---.04 .04 .07 .33 .04 -.01 -.07 .04 .01 9/1; P.:srJhaustorius sp. --.30 .33 ------.15 ---H.

.37 .19 .15 .07 .01 .19 -.11 .* 26 .19 .26 .04 .26 .22 13/H 5p. ------.11 -.04 -----2/H P. puglo ----.04 ---------l/H c. .22 .07 .19 .01 .11 .15 .41 .15 .33 .07 .15 .15 .30 .19 H/H R. ha:-risii

.01 .04 .52 -.11 .11 .04 .15 -3/14 Diptera -.04 ------------1/14 Ccrato;:>o<;onidoe ---., --------.04 -1/14 Culicoides sp. -------.04 ------l/l;

.26 -------------l/H Ctenosto;;.ata

.01 -.04 .26 ,JO --.26 -6/H A. vidovici .04 -.01 .04 -.07 .04 .26 -.11 .04 --.o, 9/H B. gucilia --.04 -----------1/14

--.11 --.o.r. .78 .07 .26 .30 --.is .H !l/H IA SALEK B 1978 TABLE 3.1.4-5 AIHWAL ?AN!; Of BENlHlC TAXA NEAR ARTIFICIAL ISLAND IN 1HE DELAWARE RIVER, 19 7 8.

SUMMARY

OF ALL STATIONS MEAN RAP;K BY DENS! TY :i: FAUrlA CUM ED 1 NUMBER OF WEIGHT l: AY RANK BY l<UHBER TAXA (NO/SQ M) BY ER BY NIJMIHR OCCURREt<CES (MG/SO ,..) WUGHl WE.IGHT 1 P. LITORAL*JS 674.2 25.602 266 15.6

  • 69f, 17 2 6. l"Pf<CVISUS 3 70.8 14.081 39.683 65 646.3 28.818 1 3 s. V l RI 0 ! S 309.4 11.749 51.432 319 406.8 18.139 2 4 A 2 79. 5 10.614 62.046 71 5.1 .2?7 22 s P1LYO(JRA SP. 245.3 9. 31 s 71. 31i*1 96 14.4 .642 18 6 c. POL!TA 1.lU. 8 4.967 76.328 303 120.3 5.364 6 7 c.

115.6 4.390 81J. 718 99 8.5 .379 19 8 ... A ... E I C. A'* A 76.6 2.909 8L627 169 21. 5 .959 1 5 9 ... :..i'0S SP. 69.S 2.639 86.266 114 148.9 6. 639 5 10 N. !. :.. CC 11. EA 56.5 2.146 88.412 108 15. 3 3.358 7 11 OLI GOC"lAE TA 1 54.9 2.085 90.497 145 37.6 1.677 11 1 2 R>il llCHUCOE.Lh 40.4 1.534 92.031 205 16 .1 .718 16 13 c.

37. ll 1.405 93.436 107 33.6 1.498 14 14 ,., . BALTHIO 25.6
  • 9b(I . 94.416 1 i!9 243.7 10.866 .l w 1 5 L
  • PLU"'ULOSUS 20.2 .767 95.183 69 4.3
  • 192 2.S 1 6 E. T'ILU8A 1b.6
  • 706 95.589 87 1
  • 8 .G8U 2.+ f--' 1 7 G. FRA',tJ SCANA 15. 7 .596 96.485 296 54.1 2.412 10 I 1 a 12.9 .490 55 .3 .lJ13 .so f--' 19 s. Ai<Gct.T EA 11
  • 7 .444 97.419 222 36.5 1.628 13 w 20 l Tl il A 8.4 .319 97.7.SS 21 1.5 .067 25 w 21 c.

6.7 97.992 69 70. 5 3.144 8 21 L. 6.7 .254 98.246 48 .4 .u1s 29 23 'I. ED,;HDSI 5.4

  • 21JS 9R.451 64 .9 .040 27 24 s. f <: " l C T ! 4.5 .1 71 98,. 022 .S6 .3 .013 30 25 C rl 1'< U J *: [ DAE 4.3 .16.S 98.785 ., .2 .009 35 26 .s. 5 .133 98. \) 18 36 37. 6 1.677 11 27 t" 8 1 P 0 R I 0 A E 2.7 .1(J3 99.021 ,. 1 60 28 2.6 .099 99 .1 20 60 29 2.5 .095 99.215 .3 .013 30 30 c.

2.4 .091 99.306 19 161

  • 0 7.179 4 31 HYORucl!A 2.2 .084 99.39(1 16 .2 .009 35 32 "'. PRuL!FERA
2. 1 * (J 8(1 99. 4 70 40 62.5 2.787 9 33 ?4*A><ALtS!OR!US SP. 2.0 .076 99.546 l1 7.2
  • 321 2(J 34 s. ELLIPT t::us 1. 5 .U57 99.60.S 6 .3 .013 30 35 H. GELATl"OSA 1.2 .(J46 99.649 22 1.4 .062 26 35 Jld DAE 1.2 .046 99.6'f5 a .2 .0()9 35 37 VltlOVICI 1.0 .038 99. 7 33 19 .2 .OG9 35 37 )I. DE><ISSUS 1.0 .038 99. /11 9 5.8 .259 21 39 GAS TROPOOA .7 .0?7 99.798 10 .3 .u13 30 40 M. LATERALIS

.6 .023 99.821 9 .6 .027 28 40 PARAPLEUSHS SP. .6 .023 99.844 4 .1 .004 40 ... " BELO" REPORUBL.E LEVEL IA SALEM B 1979 * * * * ** * * * * * * *

  • w I-' I I-' w .i:.. * * * * * *
  • Tl\BLE 3 .1. 4-5 CONTINUED
  • * * *
  • SUMHAtiY OF ALL STATION& MEAN ORY R4NK BY DENSITY x f AUl<A CUMED l: IJUMBf R OF wEIGHT x BY WANK BY NUMBER lAXA CNO/SQ "1) BY NUMBER BY R CC ES <MG/SQ M) WEIGHT WEIGHT 40 D. 03SCURA .6 .023 3 .1 .004 40 43 TU*8ELLH IA 111 .s .OH 99.Htl6 4 *
  • oU 43 G. SOLllARIA
  • 5
  • ll 1 9 i! ..
  • 6lJ 43 M. AilE,.,ARlA

.5

  • I) 1 9 99. 9 i., B .1 .004 40 46 CA AR 1 DAE
  • 3 .011 99.\ISS s *
  • ou 47 *OOROZOA .2 .OU!! 9\l.9U 4 60 47 "* GR A YI .2 .Oll8 3 *
  • 60 47 *P. Puulu .2 .008 99_9;9 1 *
  • 60 47 L.

.2

  • llll 8 99.'v67 3 .2 .OG9 35 51

.1

  • ll () 4 9'1. 971 2 *
  • oU 51
  • 1
  • llll4 1 *
  • 60 51 CJLI Cul ot S
  • 1 .UG4. 99.919 1 60 51 CERA T u?uG ul, l DAE
  • 1
  • Ulii, 911.983 1 60 51 t.UOIClH.,01lA

.1 .004 99.9'07 2 *

  • 60 51 E. bilACILlS

.1 .004 99.991 1 60 51 c. LUl;lf Roi.s .1 .004 99.995 2 *

  • oU 51 s. GilACILIS

.1 .004 99.999 1 *

  • OU 51 e. HE fU<OPuOA .1 .004 100.0(;3 , 60 51 i). LEUCOLCt.A

.1 .(J04 100.007 2 .1 .004 40 * .. SELO.i REPORTABLE LEVEL I.t. SALEM B 1978 '£ABLE 3.1.4-5 CONTINUED

D---------------------------------------------------------------------------------------------------------------------

STATION: T2S1 DRY BY DENSlTY x FAUNA r o ); NUMBER OF WEIGHT x BY RANK BY NUMBER lAXA (NO/SQ ,,,, BY I.UMBER BY CMG/SQ M) WEIGHT WEIG>lT 1 P. 11676.3 68.14H 68.148 27 41

  • 5 6.763 2 2 s. VlRIDIS 336., 13.672 81.820 n 398.6 64.961 1 3 c. POLI 1 A 1>2.2 2.529 84 * .14\1 26 38. 1 6. 2ri9 3 4 C NI Of U .'-1 0 "': l D to E. 6U.7 2.468 7 3.2 .522 12 5 l'<ICLADBA So.5 2.37b b9.1\IS 10 1. 2 .196 1 5 0 L. PLu-'uL0SuS 45.2 1.858 91.UB 2(1 7.5 1. 2 2 2 ll 7 R tt l >; C >< 0 C 0 E l A 43.7 1. 7 77
  • 92.810 11 4.0 .652 10 8 c. l 'I YI' A 27.4 1 .11 4 93.1121, 6 6.2 1
  • IJ 1 u 9 9 ,'\. E0.4<DSI 21. 5 .874 94.790 10 3.2 .522 12 10 G. FRA',CJSCANA 1 II. 3 .785 95.583 26 37.9 6.177 4 10 "* A/f:Rl(t.!'iA 19.3
  • 7 8 5. 96 * .168 7 3.6 .587 11 , 2 16.5
  • 66.I 97.031 4
  • 7 .114 19 12 (, J. ...,, .... J. r? :.J s SP. 16 * .I .603 9/.6<;4 9 12. 7 2.07U 7 1,. s. P<GE:,flA 15.0 A 6.14 98.328 21 19.0 3.096 6 w 1 5 E. TR!L(,gA 9.6 .390 98.718 9 2.4 .391 14 1 6 c.

[RE 8.9 .362 9 * !l .130 1 il f--J 17 c. ... OSA 6.7 .272 6 29.9 4.873 5 I 18 L. IC U1US 5.9 .240 5 .9 .14 7 17 f--J 19 3.7 .1)0 99.742 2 .1 .016 23 w 20 OLI T 1 A 5 .001 99.8U5 1 27 Vl 21 A. Vl0JV!Cl .7 .028 99.831 1 .1 .016 23 21 .7 .028 99.859 1 .3 .049 20 21 h. GELATll<OSA .7 .028 99.887 1 .3 .049 20 21 tiR AY l .7 .028 99.915 1 .2 .033 22 21 NUDIBgl.t.CHlA .7 .028 99.943 1 .1 .016 23 21 Cl\'IPAt<ULINlDAE .7 .028 99.971 1 27 21 N. SUCC lido A .7 .028 99.999 1 1 .1 .179 16 ""' BELOW LEVEL IA SALEM B 1978 * * * * * * * * * * * * *

  • * * * * * * * * * ** * *
  • TABLE 3.1.4-5 CONTINUED STATION: T2SZ MEAN DRY RAM:. BV DENSITY FAUNA CUMcO % NUtlBER OF WEIGHT % BY R:.NK BY liUlitH:R THA (NO/SU BY NUMl:lER llY NUMHER OCCURRENCES (MG/SO M) WEIGHT WEIGHT 1 TURBELLARIA 875.6 31.099 31. 099 18 13. 7 .!HlB 9 2 c. LACUSTRE &48.9 30.151 61.250 7 67.9 4,006 4 3 s. VlRIDlS 766. 7 27.251 88.4b1 27 1,,198.4 70. 702 , 4 P. llTORALIS 143.7 5 .1 (;4 93.5&5 24 5.5 .324 10 s c. ALl'*T t. 65.2 2.31b 95.901 18 40.4 2. 38 3 6 6 GA'l1'1Ao1US SP. 25.2 .b95 96.796 11 21. 2 1
  • 2' 1 8 7 G. f 1 SCANA 2u. O
  • 710 97.506 n 106.6 6.21;9 3 il 19 * .5 .665 98.1\il , 1 .6 .o 35 16 9 c. POLI TA 15.6 .554 98.145 12 32.1 1.&94 7 10 lj. A>:fQlCA'-A 11 .1 .394 99.139 10 3.5 .206 11 11 il. l V.PHUV l SUS 7.4 .263* 99.402 1 132.7 7.829 2 12 H.

3.7 .131 99.53.5 ' 1.2 * (J 71 14 12 s. A '-T (A 3.7

  • 1.s1 9'/.664 3.2 .189 1 2 14 TA 1 2.2 .o 78. 99.742 1 .7 .041 1 5 14 2.2
  • 07 II 99.d20 2 19 w 16 c. SEPTi:l>'SPINOSA 1.s .053 99.873 2 64.3 3.794 ' I-' 1' '1.

.7 .025 99.89!1 1 .6 .035 B I 17 ". SLJtCll,fA .7 .025 99.923 1 19 I-' 11 OlPTERA .7 .025 99.948 1 .1 .006 18 w 17 "* PROLIHRA .7 .025 't9.97!J 1 2.3 .136 13 °' 17 H. GELATlNOSA .1 .025 99.99EI 1 19 *

  • BELO* REPORTABLE LEVEL IA S1'.LEH B. 1978 TABLE 3.1.4-5 CONTINUED STATIOtq T3S1 MEAN ORY RA:-iK BY OEN SI TY x FAUNA CUMEO ); NUMBER OF IJEIGHT x BY RANK BY NUMBER HXA (NO/SO M) BY ER BY llUi"E!tR OCCURRrnCES CMG/SQ M) WEIGHT WEIGHT 1 SP. 632.6 41.864 41.b64 9 1,789.8 59.159 1 2 s. VlldDIS 297. IJ 19.707 61. 24 432.7 14.302 2 3 TUR3tLLAi<!A 232.6 15.39.l 76. 91:>4 1 2 10.8 .357 14 4 "* A'-'* E l C /..ti A 1U3.7 6.863 83.oU 1 2 18 * .l .605 12 5 c. Al"ll<A 86.7 5.738 89.565 20 85.8 2.836 4 6 c. Pull TA 39.3 2. 6l! 1 92. 166 1 5 59.2 1. 9 5 7 7 7 R ., t '* C '1 'JC 0 E: l A 21l .1 1.&60 1,14. (J 26 1U 43.5 1. 438 8 8 G. F ii '* C I > C " 14. 8 .919 9).0US 2U 6 9 SP. 1 3.
  • 880 8 40.4 1. 3 3 5 9 10 s. A t l t A 12. 6
  • 8 .l4 96.719 17 73.9 2.44.l 5 11 c. LACUSTRE 6.7 .443 97.162 6 * !!
  • 026 17 11 P. LITO**LIS 6.7 .443. 97.605 7 .2
  • Oli7 20 11 POUDlii<A SP. 6.7 .443 98.048 1 .2 .007 20 14 P*OLlftO 4.4 .£91 v8.3j9 6 .S33. 3 11. 017 .l w 1 5 c. Sf:.P!E' SPU,CJSA 3.7 .245 98.584 12.1
  • 4 (I() 13 16 .. .,_
3. () .199 9b.fil5 1 32.1 1
  • u 1 "o f-' 1 0 3.0 .199 9e.Y82 4 .4 .013 *:!! I 1 2.2 .146 3 29 f-' 18 1 2.2 .146 99.274 3 4.2 .139 1 5 w 20 c.

1.5 .099 *99.373 1 18.4 .608 11 '1 20 1

  • 5 .099 99.472 2 29 20 Till(ldOIDA 1
  • 5 .099 99.5(1 1 .1 .003 23 20 L.

I CAl<US 1.5 .099 9c;. 6 70 1 29 20 A*

1. 5 .099 99.769 2 .1 .O!Jl 23 25 E. TRI LOSA .7 .046 99.815 1 i:'.9 25 3. GilACILIS

.7 .046 99.861 1 .2 .007 20 25 H. GtLATlr<OSA .7 .046 99.907 1 3.0 .099 16 25 CA:>\PAl;ULARIDJ\E .7 .046 99.953 1 29 25 B. .7 .046 99.999 1 .3 .010 19 ... .. BELO.I REPOilTABLE LEVEL IA SALEM B 1978 * * * * * * * * * * * *

  • * * * * * * * * *
  • TABLE 3.1.4-5 CONTINUED STATION: T3S2 MEAN DRY lllNI: BY x FAUNA CU"ED :;; NUMBER Of z av RANK ilY NUMB Ell TOA (NO/Sil 'I) BY ER BY NUMBE:R OCCURRl:NCES (MG/Sil M) WEIGHT lo/EIGHT 1 TuR6ELLAillA 21521:1.9 80.110 80.111l 17 H.1 5.197 5 2 c.

244.4 7.742 Bl.RS2 22 25b.O 34.l124 1 3 s. VIRIDIS 15U.4 4.764 92.616 22 2.54.3 31 .140 2 4 N. A'< E ill C AtlA 137.0 4.340 96.956 15 85.3 11.337 3 5 R ri p; C Hu C Ci E LA 25.2

  • 798 97.754 6 3.3 .439 11 6 G.

14.1 .447 98. 201 19 Y.6 1. 276 9 7 c. P0Ll TA 12. 0 .399 98.600 8 6.3 .eH 1C 8 s. b.9 .282 n.o82 12 ..11

  • 2 4 .1' 7 0 !! ?AilAH*U>TOillUS SP. b.v .282 99. 104 9 52.4 6.964 4 10 SP. ll. 1 .257 99.421 7 13. 5 1. !l 11 POLYilCliH SP. 6.7 .212 99. 6 3..S 1 .7 .093 13 12 'i. PROLIHRA 2.2 .070* 99. 7ll3 3 17. 9 2 *. H9 7 12 L. A>1Ei1ICA1<US 2.2 .U7U 99. 77 ..s 2 .1 * (j 1 3 16 14 'I. EO.ARDSI 1. 5 .048 99.b21 2.
  • 1 .013 16 14 c. SEPTP'SPINOSA 1.5 .048 99.869 2 1.o .213 12 w 16 .'\. !'.II .7 .022 v9.8Y1 1 .1 .013 f--' 16 4. Vl;lvV!Cl

.7 .022 99.913 1 .4 .053 ,, 4 I 16 OLl GOCh.<t TA .7 .oa 99.9.55 1 .3 .040 15 f--' 16 P. LlTOHLIS .7 .022 99.957 1 .1 .013 16 w 16 E. TRILOBA .7 .022 . 99.979 1 .1 .013 16 co 16 c. LACUSTHE .1 .022 100.001 1 <!1 II: .. BELOoJ REPORTABLE LEVEL IA SALEH B 1978 TABLE 3.1.4-5 CONTINUED

*------------------------------------------------------------------------------------------------------------------------

STATION: !353 !:. AN RANK BY DENS llY x FAUNA CllMED x NUMfll:.R Of WEIC,HT l: BY flANK av TtxA (NO/SQ "I) BY ER BY R OCCUllRENCES (MG/SQ M) WEIGHT WUGHT 1 SP. 852.6 47.485 47.4b5 14 44.2 6.555 4 2 s. Vl!;!Dl S 205.0 11.3116 58.791 16 11 s. 6 16.847 2 3 P. LI TuRAL !S 18 5. 9 10.3'4 69.145 1 .s 16.9 2.H16 10 4 . 3. J :*IPi<u\11 SUS 14v.6 !!

  • 3 3 2 7 7. 477 5 267.7 39./CJO 1 5 c. POLI P 1 7 .1.55 84.t>12 23 59.9 3 b N. /," E w J (A l<A 126.7 7. 7 91. t>69 1 3 25.U 3. 7(18 I:! 7 SP. 22. 2 1. 2 36 13 26.4 3.915 b d ". 6*L hi CA 19.3 1.U75 93.YilO 3 22 .4 .S.322 9 9 E
  • TRILL13A lb. s 1.030 95. 01 0 1U 1. 0 .148 16 10 L.
17. 0 .947 95.957 .8 .119 17 11 G. Fl<A'j(J SCAt.A 14.1 .785 96.742 19 41. 0 6.0!!(\ 5 12 s. 'l !:. 'd E A 13.3 .741 97.483 18 8.2 1.216 1 2 13 11
  • 9 .663 98.146 7 1.9 .2!lt 1 5 14 suctl"EA !!3
  • 4't 6 911.642 6 4.4 .655 13 1 5 c. LACJSll;I:.

I>. 7 .573 \19. () 15 4 .6

  • 0!!9 1 il Lv 16 c. A. L *"' r HA 3.7
  • 91>.a1 3 3.0 .445 1 4 I-' 17 c.

3,. 0 .167 3 11.4 1. 691 11 I 1 8 ?. PuG 2.2 .123 \19.511 1 .1 19 I-' 19

1. s .UR4 2 20 w 19 C 1 1, (J 5 I v o. A T A 1.s .084 99.6(9 2 26 l..O 19 ..

Sil 1

  • s
  • 084 99.763 2 25.5 3.782 7 19 1.5 .064 99.ri47 2 26 23 11. r, J TI o A .7 .059 Y9. Hl:l6 1 .1 .01S 19 23

.7 .039 99.Y2S 1 .1 1 Y 23 C IN I DAE .7 .039 99.964 1 .1 .01 s 111 23 c. LUNlfRONS .7 .039 100.003, 1 26 .... BELO a REPORTABLE LEVEL IA SALE!! B 1978 * * * * * * * * * * * * *

  • * * * * * * * * * *
  • TABLE 3.1.4-5 CONTINUED

*---------------------------------------------------------------N--------------------------------------------------

STATION: 14SI )IE:AI< R.t.NK BY DENSITt % FAUNA CUM ED x NUMIH: R OF WEIGHT x BY RANK BY NUHilER TAX A (NO/SQ BY tWMlE:R BY NU*,BER OCCURRE:NCES CMG/SQ M) wE: lGHT ill EIGHT , P. LI TORALIS 2.32.!.2 73.267 73.267 27 34. 8 2.015 ; 2 s. 260.0 8.2u3 81. 4 70 17 60iJ.1 35.209 2 3 E:. TRILOBA 129.6 4.089 s; .'s 59 1 5 12.8

  • 7 41 B 4 8AL1H!(A 6U. () 1.893 87.452 16 821. 6 47.571 1 s IRICLAO!DA 59.3 1. 8 71 89.323 1 2 1
  • 1 .064 19 b RnYl.(Hj(iJE:lA So.5 1. ll46 91 .169 20 24.1 7 7 OLIGllC"AE:TA 1 4o.7 1. 4 7 3 92.642 1 7 1 {l. 4 .002 9 s c. POLllA 4!>.2 1.426 94.068 66.1 3.827 4 9 SP. J2.6 1.029 95.097 1[i !>.3 * .507 13 10 ". A'IERl(A>,A 26.l .b42 95.\139 12 5.9 .342 11 11 L.

21.;

  • 6 i'8 96.617 9
  • 7
  • 041 21 12 G.

,...

  • 3 .609 9 7. 226 26 69.0 3.1195 j 13 ... SUCC I ',EA 13. 3 .420 97.646 1 2 8.0
  • 463 10 11. POLYD(J><A s ... 12.6 .398 98.1)44 3
  • 3 .
  • u17 26 w 1 5 s. AR 6 t :i TE A 11
  • 9 .375 98.419 16 . 34. 2 1. 98(J 6 lo TA /.4 .253 98.652 3
  • 4
  • lJ23 2) ....... 17 c.

5.9 .1b6 98.838 8 .2 .012 u I 1 7 "1. EDnAl<OSI 5.9 .1 ll6 99.024 5 1.U .058 20 ....... 19 c. AL:*ri<A 5.2 .164 99.11:;8 4 2.7 .156 16 '""' 19 ti IT 5.2 .164 99.3)2 2 .7 .041 21 0 21 L. 3.7 .117 99.469 5 3.6

  • 2U8 1 5 22 c.
3. :J
  • 095 9Y.564 4 2.4
  • 1 3\l 17 23 L. CULliC.QI 2.2 .069 99.635 3 2.4 *. 1 39 17 23 fUrdELLA*<IA 111 2.2 .069 99.7u2 2 .54 25 s. i:i E ';£ O IC II 1
  • 5
  • 04 7 99.749 2 34 25 HORlltil A 1. 5 .047 99.796 2 .5 .029 24 A. VlilJV!Cl 1.) .047 99.ll45 2 .7 * (J 41 21 28 11. GE LAT P*OSA
  • 7 .U22 99.b6) 1 .1 .006 20 28 E. (j;lAClL!S

.7 .022 9'i.fl87 1 34 28 PROLIFERA .7 .oa 99.909 1 5.8 .336 12 28 .7

  • ll2 2 99.9:51 1 34 28

.7 .022 99.9)3 1 34 2b lilHUill"EA .7 .022 99.975 1 .1 .006 28 28 R. HllilH!Sll .7 .on 99.99"/ 1 4.1 .237 14 *

  • BELO.i REPORTABLE LEllEL IA SALEM B 1978 T/\llLE 3.1.4-5 CONTINUED STATlOt1:

f4S2 ME:fW ORY BY 0 E:1s IT Y :t; FAUNA (UMf:D NU.MBE:R Of WEIGHT x BY RAt.K BY Nu MB ER TA" .l (t<O/SG 'I) BY NUoc R bY tlUMfiER E:tlC ES (MG/SQ M) WEIGHT WEIGHT 1 8. lPP:lvISlJS 4,703.I 60.067 6U.06 i' 2; 8,111.4 65.861 1 2 ?. LI TO<*'L lS 1,u3u.4 13 .1 58 73.22; 27 2.1

  • 7
  • 1 76 1; 3 N. SUCC1'*E:A
u6. 1 6. 4 71 79.696 24 825.1 6.t.99 3 4 c. LACUSTRE 484.4 6.186 85.bb2 21 31. 0 .252 13 s s. v 1 il Io IS 211
  • 1 2. 696 . !l'l. 5 to 22 228.1 1.852 5 6 c. PiJLl TA 117. 8 2.01 90. bl.9 27 206.0 1.673 6 7 0Ll6\JCHAE TA 118.5 1
  • s 1 3 92. 5t>2 24 111. 9 .957 !l 8 Ii IT I c> 1 OU.;) 1.277 95.6!i9 9 18.4 .149 16 9 PJL Y Cl Uil '-$P. 6;.9 .842 94.481 13 6.4 .052 19 10 62.2 .7'i4 95.275 2; 9.5 .077 18 11 61.5 .785 96.060 14 37.9 .308 11 1 2 c. vl*:dq[A 31 .1 .397 96.457 1 7 2,004.2 16.273 2 13 C.9. 6 .378 9o.ilss 16 195.6 1. ;so 7 14 R. HA"qSll 26.7 .341 97.176 14 269.8 2 .191 4 w 1 5 E:. TR IL l' 8 r. 2.3.7
  • 303 97.479 8 1.6
  • 015 23 16 s. ELLIPT ICUS 20.7 .264 9l./43 6 4.7 .03i! 20 I-' 1 7 G. f*:*.CJSONA 2J. u .255 97 .998 27 31
  • 9 .259 1 2 I 18 s.

1e.5 .23o 98.234 2S 26.5 .215 14 I-' 19 C T E:t US l J ., A T P. 1(. 8 .227 98.461 24 36 .:0.. 20 SP

  • 17. 0
  • 21 7 98.678 1<! 13.3 .108 17 I-' 21 dPOP!DAE 15.6 .199 98.877 21 36 22 c. st P TE:% P PlOSA 14. 8 .1h9 99.060 11 63.6 .516 10 23 0 f.'" l > 5 !JS 14.1 .180 99.<4o 9 80.7 .655 9 24 TRICLAOIDA 11
  • 9 .152 99.391; 5 36 25 o.

!l. 9

  • 11 4 99.512 3 .9 .007 2; 26 IES SP. 7.4 .U94 99.606 3 .9 .007 25 27 5.2 .066 99.612 ' 1.3 .011 24 28 P1IDAE 4.4 .056 99.72/J 6 .6 .oos 27 29 s. BE *, E: I C: TI 3.7
  • 01, 7 99. 77 5 4 .4 .003 30* 29 ti¥DRC.8P 3.7 .047 99.822 3 36 31 ti. GELA T J >iOSA 2.2 .028 99.850 3 .6 .005 27 31 c.

2.2 .028 99.h78 1 2 .1 .017 22 31 2.2 .028 99.9iJ6 3 .6 .005 27 .34 ARt'lARIA

1. s .019 99.925 1 .2 .002 32 35 o. LEUCOUl<A
  • 7 .009 99.9!>4 1 36 .35 L. ?LU.'tlLO>US

.7 .009 99.943 1 .4 .003 .30 35 c. LUN!f!<O*1 1 2.3 .019 21 35 A. VlDOVJCI .7 .009 99.970 1 Jo 35 .7 .009 99.979 1 .1 .001 33 35 l A .7 .009 99.988 1 .1 .001 33 35 L. AkcRICANUS .7 .009 99.997 1 36 " 13 BELQ>j REPORTASLE LEVEL IA SALEM B 1978 * * * * * * * * * * * * *

  • * * * * * * * * * * * *
  • Tl\BLE 3.1.4-5 CONTINUED 5TATJON: T4Sl HEAii ORY RANK B't DE*ISITV % FAUNA CU"1E D t NIJl'o81:R Of WEIGHT 2: BY RANK BY hUllilUl TUA (NO/SQ 11) llY NUM!Hll SY O"URRtNCES (MG/SO M) WElGliT WHGliT 1 P, LI TO.ii All S 2l9. l .55.866 35.866 24 9.2 .b39 11 2 s.

161.5 24.2()6 60.(172 25 235.8 21.511 2 .5 :; . l.'4tiilCAN4 56.3 b.4.HI 6!!.510 12 1d.1 1

  • o 51 8 4 c. POLI U :i 1. ii 7.7?9 76.2d9 24 !l 7. 9 ,8. 019 6 5 '4. isALlnlCA 30.4 4.55b 16 205.0 18. 7(J1 j 6 s. lRutr.TE*

1Y.3 2. ts<;oJ bj. 738 26 91. 9 !i.384 s 1 G. fRA'lllHH.iA

18. 5 2. 713 86.511 lS 254.9 23.253 1 8 A*O'<Cll;JC0EL4 14.11 2.218 8>1. 729 9 6.5 .593 12 9 a. l'li'*OvlSUS H.1> 1.!188 90.617 3 52.7 4. b[1g 7 10 SP, 11.1 1.664 92.2o1 8 17 .1 1. 560 9 11 PJL I uUH SP, Ii .1 1.214 93.495 5 1
  • d .164 14 12 '* vD;hJCI :i .2 .7'9 94. 27 4 7
  • 7 .064 17 H l*ICLA)lCA 4.4 .659 94.9.B 2
  • 1 .009 22 1l c. Si:PlfVSPlNOSA 4.4
  • 6 5 <; 9).592 4 94.6 8 .6 3(1 4 w 15 ..,_

3.7 .555 96.147 !; 12.0 1.09!> 10 15 OLIGOC"AE U 1 3.7 .555 96./02 5 4.1 .374 1.5 I-' 17 ti. GEL* I 1'*0$A .s.o .450 4 .a .073 16 I 1d c. AL*!Oil 2.2 .350 117. 4 llt! 1 .1 .009 22 I-' B ". 2.2 .350 97.81.! 3 .1 .OU9 22 1d ... LAH*lllf> 2.2 ..BO 98.142 2 1.2 .109 , 5 N 13 L. A "f l C A1'U5 2.2 .BO 98.4(2 3 .s .046 18 1il .c. 2.2 .BO 911. !!02 2 26 25 't A'* IP Ci R l DAE 1. 5. .225 99.027 2 26 23 E. T'ILOSA 1.5 .22s 99.252 2 .2 .018 21 2l Ji.JRaELLAi!JA 1.5 .22) 99.4/7 2 s4 .036 19 20 CuLJCOJDES .1 .105 1 26 26 OLIGOC!iAE IA .1 .1CiS 99.687 1 26 26 s. oE!,E.JlCU .1 e105 .99.792 1 .1 .!i09 22 26 "* lilTIOl .7 .1!i5 99.897 1 o4 a03b 19 26 U£NO$fu!'IAU .1 a10S 1ou.002 1 26 Q * &£PORTABLE LEVEL IA SAI.£H B 1978 TABLE 3.1.4-5 CONTINUED

*-------*--w------*-----------------------------------------------------*-*----****------****-**-*******-******************

STATION: rs s 1 MEAN DRY ar DENS! TY % FAUNA c"UMED x NUMB EH OF WU GHT x BY RAt<K BY NUHB!:R I AXA CNO/SQ BY ER EH OCCURRENCES (MG/S<J M) WEIGHT WEIGHT 1 P. LI TURALI S 656.3 22.789 22.789 26 16.7 1. 002 1 3 2 c. POLIT A 369.6 12.834 35.623 26 11.520 4 3 POL SP. 31l. 0 11.UU7 46.630 14 31. 9 1. 914 11 4 a. 257.8 8.952 55.532 10 '295.9 17.755 1 I 5 :JLIGJCn*!: 1 A 1 8.129 63.711 26 149.6 8.'lf6 ' 6 s. Vltild$ UU.7 7.663 71.374 26 295.6 11.737 2 7 L. PLl!"-LILOSUS 1 8 7. 4 6.507 71.b81 21 39.6 2.376 10 !l c. 152.6 5.299 83.180 1' 11

  • 1 .606 16 9 143 .J 4.965 88.145 21 91. 9 5.514 7 10 R" l ... c 0 ELA 85.2 2.958 91 .1 U3 19 12. 7 .762 14 11 52.6 1.826 9( .929 14 5.3 .318 18 12 s. E '* t 0 I C I l 119.6 1
  • Ll 2 B 95.957 12 1. 3
  • l* 7 i! 24 13 \j

.. 1 Si !.P. 23.7 .825 94.78(J 'I 21. 0 1. uo 12 14 3,-\L 2 3. \) .799 '15.579 10 49.0 2.94(J 8 15 .. f 1103 l ... n.2 .771 96.350 7 1

  • 7 .1(j2 22 w , 6 OLlG(;C"'E TA 13.3 .462 96.b1Z 6 1.9
  • 11 4 20 1 7 c. SEPlt*'SPlNOSA 10.4 .301 9 7. 173 9 144.4 b f-' 1 d G. f*H',ClSCAt<A 9.6 .533 97.506 13 5. 1 .306 19 I 1'il E. li<llOBA 8.9 .3u9 97.815 7 .6 .036 27 , 9 .3U9 98.124 6 .5 .030 28 f-' 21 7.4 .257 98.381 7 1.6 .096 2.S it:>. 22
6. 7 .233 98.614 5 1 .1 .066 26 w 22 c.

6.7 .233 98.847 5 9.2 .552 17 24 5.2 .181 99.028 7 37 21.

5. 2
  • 181 99.209 7 37 26 C u L l Id 0 A E 4.4 .153 99.362 6 1.8 .108 21 27 E ., A 3.7 .128 99.490 5 .2 .U12 29 211 R.

3.0 .104 99.594 3 40.0 2.400 9 29 G. SuLIPRI/\ 2.2 .076 99.610 3 .1 .U06 30 29 HtOROZGA 2.2 .076 99.746 .s 37 31 "* G,; Al l 1

  • 5 .05.! 99.798 2 37 ( 31 c. ViRuU1lO 1
  • 5 .052 99.850 1 231.2 13.873 3 31 GAST>iOPOOA 1.5 .052 99.902 2 37 34 H. Gt.LA I Il<OSA .7 .024 99.926 1 12.4 .744 1 5 o. Lf:UCJLHA

.1 .* 024 99.950 1 1.2 .012 25 34 s. ARGENTEA .7 .024 99.974 1 37 34 PARAPLEUSHS SP. .7 .024 99.998 1 37 .,, .. REPORTABLE LEVEL IA SALEH B 1978 * * ** * * * * * * * * * *

  • * * * * * * * * * * * * 'l'AilLE 3.1.4-5 CONTINUED STATION: T5S2 ioll:AN llY DENSITY x FAUNA CU"1E D ); NUMA[;R Of WE I uH T BY RANK BV HUHBER TAlA (NO/SQ M) BY NU'*BE R BY ER OCCURRl:NCES (MG/SO M) WEIGHT WEIGHT 1 P. LI 1.231.11 49.14( 4\1. 14 2 25 27. 1 .875 11 2 s. dil!OIS 355.6 14.1(j5 b5.3U 25 298.3 9.635 4 3 c. POLIT A 254.1 10.156 15.4oio 24 311. D 1 0. (*4 I> 3 4 POL SP.

6.2Ul 79.t>(U 5 12.0 * :588 1 4 5 dAL IHICA 117.8 4.699 84. Sb'I 22 11509.4 48.755 1 6 1 <; 5. 6 3.b14 tHl.183 27 1<'6.0 4.U70 5 7 55.6 2.218 9!l.4U l 23 47 .9 1

  • 5 4 7 8 8 E o i C A 36.3 1.44h 91.849 13 23.5 .759 13 9 L.

29.6 1. 1il1 95.030 lU 1.4 .U45 21 10 SuCCl'4tA 2 LI. 1 .826 \I 12.0 .388 1 4 10 E. TRI 2U.7 .826 94.682 7 1.2 .03Y 23 1 2 G. fRAi;CISCAN.l 17.8

  • ll 0 \15. 392 24 40 .1 1.295 9 13 s.

1 7. J

  • 6 7 il \16.070 9 1.6
  • u 5 2 20 1 .. s.

I Ei. 15.6 .622 96.692 21 99.9 5. 227 6 1 5 a. 1 Pi< 0 v I SU S 13. 3

  • 5 3 1 97 .223 6 88.1 2.846 i w 16 TRICLADIDA , 1. 9 .475 97.698 5 .3 .010 27 f--' 17 '-i. FnOLIFHA 7.4 .295 97.9Y.3 10 423 * .r B.e73 2 I 18 c Tl:r.eis r O"'A u 5.9 .235 98.228 8 31 f--' 16 ".E>18RA<<IPOR10AE
5. II
  • 2.) 5 9!l.463 8 31 ti'> 20 c. LACuSTnE 5.2 .207 98.670 3 .4
  • 013 25 ti'> 20 .*. EO.i.wDSI
  • 207 5 1.3 * (J4 2 22 22 H. GELA r I r.os* 4.4 .116 99.US.S 6 2.0 .065 17 23 c. AL qili. 3.0* .120 yi;.. 173 2 .4 .013 25 23 "*

3.0 .120 99. 2i;.3 2

  • 3
  • U10 27 23 3.U .120 99. 4 Jj 2 1. 9 .061 18 26 A. VIDG>ICI 2.2
  • 088 99.501 3 .6 .019 24 26 R
  • 1 2.2
  • Ut\8 Y9.5b9 3 35.3 1.140 1G 26 M. LAHRALIS 2.2 .O!l8 99. 6 77 3 2.1
  • UeB 16 29 S SP. 1. 5 .060 99.757 2 1.8
  • liS Ii 19 211 A.'<.JLA 0' E 1.5 .060 99./97 2
  • 1 .003 3(J 2'1 1.5 .060 99.'65( 2 31 29 c. SEP TE *SPINOSA 1
  • 5 .(J1>0 99.917 2 26.4 .853 12 35 L.

a Sus .7 .028 Y9.945 1 .2 .006 29 33 e. .7 .028 <;>9.973 1 31 33 1URUOlNEA .7 .028 100.001 1 31 *

  • 6ELO* REPORTA6LE LEVEL IA SALEH B 1978 TABLE 3 .1. 4-5 CONTINUED STATION: '751 MEAN ORY RANI: BY DENSITY x FAUNA CUM ED % tJUMBE R OF WEIGHT t BY RANK BY JOA (NO/SQ ;, ) BY BY NUMA ER OCCURHrnces Ci>IG/ SQ n WEIGHT WEIGHT 1 s. Vl><IDJS 465.9 42.614 42.614 26 678.3 51. 629 1 2 A 258.5 23. 641* 66.2511 10 4.8 .365 12 3 G i\ ... Y. J s :, p. 81
  • 5 7.454 73.712 7 8(). 4 6.576 3 4 c.

1:1. 5 5. 625 79.337 18 5 7. ll 4.339 4 5 c. P JL l TA 52.6 4.811 84.148 17 46.S 3.539 5 0 "'. 2!S. 9 2. 61.3 86.791 12 (l. 5 .495 11 7 25.9 2.369 89.160 13 7.9 .601 10 !! POL'l'OOPA SP. 23.ll 2.104 91.264 4 1

  • 2 .U91 1o 9 .; . F R 'i C I S C At< A 14. 8 1. 3 54 92. 618 20 39.6 3.lll 4 6 1Q i'.

13.3 1

  • 21 7 11 .4
  • 030 20 10 c. LACUS I ;.E 13. 3 1
  • 21 7 95.

5 .5

  • ll38 19 1 2 .l

'-ti E. A 10.4 .951 96 .00.S 14 25.0 1.903 ll 13 7.4

  • 6 77 7 1
  • 1 .084 1 7 1'4 E. l<ILL'8.l 6.7 .613 97.293 3 .4 .ll30 20 14 Ti<lCL!OJCA 6.7 .613 97.9(J6 1 26 w 16 PA.<At<*U5TORJUS SP. 5.2 l6 98.382 4 B.O .609 9 10 c. Sf_PT!:"SPJNOS.\.

5.2 1!58 4 307.0 23.367 2 f-' 18 N .. St.ICCl!d:A 2.2 .201 99.0S9 2 3.2 .244 13 I 1 8 TA 1 2.2 .<U1 99.260 3 2.1 .11>0 1 5 f-' 20 Ii. 1

  • 5 .137 '19.397 2 .8
  • 061 113 .t:> 20 il
  • 1
  • 5
  • 1.3 7 1 2.7 .206 14 lJl 20 C 4 .-. P ll L I r, I D A E 1. 5 .13 7 99.671 2 .1 .DOB 22 20 L.

A';us 1.> .137 99.808 1 26 24 "'* t3ALT'1JCA .7 .064 99. 8 72 1 .1 .008 22 24 .'I. PROLIF<RA .7 .064 99.9.36 1 34.1 2.596 7 24 11. VIDuvICI .7 .064 100.000 1 .1 .008 22 "

  • REPOllTASLE LEVEL IA SALEM B 1978 ( * ** * * * * * * * * * *
  • * * * * ** * * * * * *
  • TABLE: 3.1.4-5 CONTINUED

*------------------------------*----------------------------------------------*------*M------------

STATIOIH HS2 MEAN OWY llAl<I; 1:11 OE1<Sl TY x FAUNA CUM ED x OF wElGHT i: BY RANK SY kUHBtR TAXA (1<0/SQ "I) IH NUMBER BY IWt'l:lER occ*uRRENCES (MG/SQ M) WEIGHT WEIGHT 1 POLY OOH SP. 1'6.S7.0 82.199 b2.199 26 7h.6 13. 966 j 2 c. POLIT A 13b.5 6.955 89.1S4 25 174.4 30.988 1 3 SP. d3. ll 4.168 95 *. 5<'2 11 67.0 11.9U5 4 4 ... A *If.fl lCH*A 2h.9 1. 4 51 94.(73 9 6.9 1.n6 9 s s. VI il Io IS 27.4 1.376 96.149 8 21. 9 3.b91 6 6 s. 13.3 .668 v6. 7 7 E. I.< lluilA 9.6

  • 4 fl2 97.2v9. 7 1.0
  • 1 78 1 5 "*

8.9 .447 9l.746 8 144.d C!S.729 2 b R>iY,,CH.)t(JELA 8.9 .447 98.1'13 7 4.4 .7h2 11 10 G. *f '1A'll HCA NA 8 .1 .407 9CI. 6lJO 11 24.3 5 11 ". SUCCl,,tA 7.4 .372 98.972 7 1.2 .213 1 4 12 c .. LACUSIWt 5.9 .296 99.268 6 1.6 .284 13 13 c. SEPfE.%PINOSA 3.7 .18o 99.4;4 4 7.6 1.350 8 ,.. c. Ii A 3.0

  • 1'1 99.6i15 2 2.0 .355 12 15 .... ?i<CLlfEH 1.S .075 99.o<Hl 2 s.2 * .924 10 w 15 t.ITIOA 1,. 5 .(J 15 99.755 2 .1 .018 16 17 OLIGOCMAtTA 1 .7 .OjS 99.790 1 23 I-' 17 G. SOLIJau .7 .03'.> 99.82'.> 1 23 I 17 OLIGOC"AtfA

.7 .035 99.860 1 23 I-' 17 P. LITCJRALIS .7 .035 99.895 1 23 ""' 17 .7 .035 99.930 1 23 O'I 17 "* CD*A.ilOSl .7 .035 99.965 1 23 17 L. 1 C.HIUS

  • 7. .035 100.000 1 .1 .018 16 * .. 6E.L0,,j RE.PORTAtiLE LEI/EL IA SALF.1-1 B 197R Tl\BLE 3.1.4-5 CONTINUED ST AT I 01<: T8S1 N DRY RAl,K bY DENSITY x FA UN.A CUM ED % NUMBER OF
EH RANK BY

!AXA (1<0/ s <l Ml BY llUM8Ell BY NUMtlf.R occ'uRRENCES (MG/SQ Ml WEIGHT wEIGHT 1 P. LIT0iHLIS 823.7 29 .11 u 29 .110 26 1 '. 4 1.295 11 2 E;, l C f. '*A 354.1 12.51 4 41.ii24 1.5 42.9 3. 6(J7 8 3 c. POL!!' 352.6 12.461 54. U85 27 213. 7 17.Y67 2 4 P 'i iJi.':. SP. ii 12.330 66.415 12 24.0 2.018 9 5 TA 2<6. 7 8. IJ 1 2 74.427 27 tl 7. 2 7. 331 5 6 s. 21 (. 8 7.697 82.124 27 319.7 26.!l79 1 7 ), . SU CC 11, t A BS.2 3.011 85.135 22 107.1 9.005 4 B c. L*Cus r> E 7').6 2.672 8/.8fJ/ 11 4.' .39) 14 9 ol '1 Y I< C H ll t U t l l 66.7 2.35/ 9ll.164 22 23.9 2. (l1J9 10 10 L. PLU'*UL (*Sus 45.2 1

  • 5 9 7 91
  • 7 61 21 8.4
  • 7116 13 11 8. I.fv\'1 S*JS 311. 3 1.j89 93. 1 )I) IS 82.8 6. \161 6 12 32.6 1.152 94.302 21 169.2 14.226 3 13 c.

2).9 .YlS 9S. 21 7 ti 57.2 4.&U9 7 14 i:. Ti< I 2C.. 2 .7bS 96.0*)2 1.S 1.9 .160 18 1 5 \: *1:..;;;. us SP. 17 .i! .629 96.631 6 9.3*

  • 71!2 1 2 w 1o 1 3. 3
  • 4 7ll 97.1tl1 8 1.0 .084 22 1 7 G. t; ;.*;CJ >CANA v.6 * .539 97.44U 13 4.0 .336 16 f-' 17 s. B t ° 0 IC Tl 9.o .3.59 97. 7'(9 7 1.0 .084 22 I 1't 11. E 11 C= SI !l. v
  • 31 5 98.094 7 1.6 .135 19 f-' 20 OL!Gi.lCrl*ETA 5.9 .209 9_8 * .50 3 3 .4 .034 30 ,p.. 20 L. A'*'. E Ii l C *I* US 5.9 .209 98.512 5
  • 7 .059 26 -.-! 22 5.2 .164 98.696 7 34 23 :1. ;*.r TI 4.4
  • 1) 5 98.851 1 .4 .034 30 2.5 R. H I I 4.4 .1)5 99.0U6 4 4.3 .362 1 5 23 TUil9ElLAklA q, 4.4 .155 99.161 2
  • 1 .008 33 26 G. S0LITARP 3.7
  • 1 31 99.292 3 .5 .042 26 21> Ju'13!:LL.\R!A 3.7
  • 1.31 99.423 2 .9 .076 24 2o
3. ll .1U6 99.)29 4 34 28 s.

3.0

  • 1 06 99.6.3) 4 3.0 .252 17. 30 rl!D"')o!A 2.2 .078 99. 715 3 .5
  • 042 2!! 31 LA Tt*AL IS 1
  • 5 * \)) 3 *99.766 1 .3
  • 025 32 31 c. AL f< A 1 *
  • ll )3 99.1'19 2 1.4 .118 20 .::.1 ..,_ Er, t. l A 1. 5 .053 99.872 2 1.2 .1 01 21 31 CA "'PA 'IULI r; l DAE 1.5
  • ll 5 3 99.925 2 .7 .059 26 35

.7 .025 99.950 1 34 35 CEilA.TOPuGON!OAE .7 .025 99.975 1 34 35 tl. GELA TI r.osA .7 .025 100.000 1 34 * " BELO.i REPORTABLE LEVEL IA SALEM B 1978. * * * * * * * * * * * * *

  • * * * * * * * * * *
  • TABLE 3.l.4-5 CONTINUED STAT 10r1: I 8S2 MEAN DMY ElY DEr1Sl TY F AUf<A Cu"11:D NUMBl:R OF WEIGHT x BY ilY NUi'IBH (NO/Sil 'I) BY BY Nlif'*BtR OCCURRENCES (MG/ SQ I')

WElG>1T 1 P. LI T0*AllS 1,107.4 51. 411 s 1

  • 4 7 1 27 28.7 1. 717 8 2 s.

30.S74 .82.045 2 7. 6 31. 0 31.760 1 3 c. POLIT A U1.1 6.093 Bil. 1 .ltl 23 191.6 11.466 3 4 Rrl Y llCtWC 01: LA 60.0 2. ;!J9 90.9N n 35.6 2.13µ 7 5 OLI A , 34.1 1. S8 5 92.,12 10 24.0 1.436 10 6 "* A*.1:;nc*"A 2"'. 6 1.370 1 d.1<8d 1 3 17.9 1 * {j 71 11 7 .I\.

27. 4 1.274 9S.162 1b 406.4 24.319 2 0 G.
19. 3
  • b 'i 7' 9o. 0'9 2o 2d.5 1
  • 7 0 5 9 9 s.

<* 1 7. ll .b27 90.800 24 7.l.6 4.4U4 5 10 c. SEPTt*"SPll<OSA b.9 .414 97 .:mo ' 164.2 ". 826 4 11 M. PilOLlfERA 7.4

  • 34 4 91.644 10 38.4 2.29b 6 11 E. TMlUHlA l.4 .344 9 7. 'i81l 4 1.6 .09o 1 5 13 I\.

6.l .311 98.299 6 .6 .036 19 14 a. l"Piivv!SUS 5.9 .274 *iB.513 5 16. 1 .963 12 1 5 c. Y rl Ai !)

  • 2 .242 9d.815 3 3.6 .215 1 4 w 1o L.

4.4 .205 99.u2u 5 1.0 .060 16 1 7 3.l .172 99 .1 5 .rn I-' 17 LJ;lbl:.LLllP!A 3.1

  • 1 7 2 99 * .lo4 2
  • l .042 18 I 1't Y,.

3.J

  • 1 3<; .

3 4.7 .281 13 I-' .t:> 20 N

  • SUCClt<EA 2.2 .102 99.605 3 .3 .018 22 co 21 'I. I* I TI o A 1. 5 .070 99.675 2 .4 .024 20 22 TRICLADlDA
  • l .033 99.708 1 .1 .006 22 SOLi T4RIA
  • 7 .03.l 99. [41 1 30 22 A. v!DJvlCI
  • 7 .U33 99.7l4 1 .3
  • 018 22 22 c. UCUSIKE .7 .033 99.807 1 .1 .ooo 25 22 s. a c ri I; DI c T l .7 .LIB 99.b40 1 .2 .012 24 22
  • 7 .o:n 99.fllj 1 .1 .006 25 22 H. GELAIJr.OSA

.7 .031 99.9lJ6 1 .1 .006 25 22 GASTNC1PODA .7 .033 99.9.)9 1 .8 .048 17 22 OLlGOCt1AfTA .7 .033 99.972 1 .4 .024 20 22 HIOROtllA .1 .033 100.005 1 .1 .lJ06 25 * .. BELO.; REPOkTA6LE LEVEi. IA SJl.LEH B 1978 w

  • BY NUMBl:R 1 2 3 4 5 6 7 d 9 1ll 11 12 *13 14 *
  • TABLE 3.1.4-6 ANNUAL RANK BY lOCAllON OF 8ENTHI( IAXA ANflFlClAL IN TH"E 1978. Ar, ORY SAMPLING DENSITY % FA UfJ A f) WI: l \,HI 4 1:1 y fly LOCATION (NO/SQ ,, ) . BY fllUi*BE R BY i.i(JMf.H:

R I "1 GI S (/ **1) WE Ir, HT wFIGHT T4S2 7,831.l 21.245 2 1. <' 4 5 1(>,.51'>.9 \9.223 T4S1 3,109.6 8.599 29 .1'>4<. 1,121.c; 5. 5 fJ 2 4 T3S2 3.157.:J 8.565 31:1. 411'1 7'J?.o 2. 9 7 11 T5S1 218dlJ.ti 7.813 46 * .U2 1,060.4 'j. 3 (1 7 7 T8S1 2,829.6 7.676 5 3. l:l9i> 1 , 1 8 9. 3. 7"' 1:1 9 T2S2 21815.6 7.638 61. 5 .56 11694.9 5. 8 5 1ss2 21506.7 6. 8()() 68 *. U.t> .5 I 09..,. <,i 9. 6 :) <' T2S1 2146ll.ll 6.674 75.U10 613.o 1. <./' 4 13 T8S2 21151.9 5.838 80.848 1,671.2 5.522 6 T7S2 1,991.9 .5. 4 04 86.252 )62.7 1

  • 7 '12 14 T3S3 1,195.6 4. 8 71 91.123 674.4 ".148 1 2 T3S1 1,s11.1 4.099 9S.22" 3,1125.4 9. /) s 3 T7S1 11093.\ 2.9*66 98.188 1,51\.6 4 .11:13 8 T4S3 66 7 .4 1.811 99.999 11096. 3.491 HJ IA SALEM B 1978 ( * * * * * * * * * *

* * * * * * * * * *

  • TABLE 3.1.4-7 COMPARISON OF THE SHANNON-WEAVER DIVERSITY INDEX (D), SIMPLE DIVERSITY (s), AND TOTAL SPECIMENS (N)-1978 Aoril June July_ August SeEtember -October Nover::.ber Hean s l3 10 12 12 14 ll 12 l3 16 13 '1'2Sl N 1, 894 2,5B7 l,961 4,067 3,980 414 l,120 2,120 3,994 2,461 D l.102 0.913 l.301 l.024 l.003 l.957 l.625 1.141 l.050 1. 235 s 12 6 9 11 6 12 11 10 12 10 '1'2S2 N l,542 9,087 2,040 1,600 447 521 953 421 8,735 2,816 D 0.932 0.632 l.186 .l. 337 l.399 1. 856 l. 772 l.HB 0.694 l.284 s 10 15 11 11 9 13 6 14 16 12 '1'3Sl N 994 887 6,154 2,260 594 480 481 773 981 l,512 D l.272 l.601 0.404 l.207 1. 330 1.871 0.677 1. 423 1. 365 1. 239 8 7 7 9 9 11 12 6 10 10 9 '1'352 N 573 7,174 12,753 4,160 846 688 267 736 1,220 3,157 D l.083 0.472 0.289 0.741 l.4H 1. 428 l. 245 l.299 l.277 l.031 " 7 .7 11 8 13 9 15 12 9 10 '1'353 N 167 84l 2,321 l,086 5, 561 l,794 2,475 766 l, 154 1,796 D l. 735 0.652 l.2H l.646 0.433 0.596 l.528 l.876 0.939 l.183 " l9 17 13 . 14 15 14 14 18 18 16 '1'4Sl N 4 ,32_2 3,534 3,581 . 2,080 2,820 2,401 3,075 4,147 2,572 3,170 D 0.927 l.067 l.335 . l. 269 0.696 0.990 0.974 l.237 w s 22 17 18 19 28 27 17 23 28 22 I-' '1'452 N 4,036 4,005 4,374 13,693 H,094 U,824 l,955 5,152 11,351 7,832 I D l.951 l.515
l. 741 0,831 0.867 1.475 1. 752 1.889 l.695 l.oH I-' U1 B 12 10 19 7 9 17 l4 14 16 13 0 T,53 N 774 214 l,469 154 267 700 648 861 929 669 D l. 745 l.915 l. 608 1. 669 l. 766 l ;968 l.991 l. 786 1.528 l. 775 s 20 17 15 15 13 22 23 24 20 19 '1'5Sl N 1,541 l,421 2,427 3,508 4,333 3,320 4,515 3,695 l,168 2,ee1 D 2.383 1.915 1.496 l. 772 l.190 2.239 2.395 2.204 2.343 l. s 22 16 19 11 13 17 12 19 23 17 T552 N ,,936 l,552 4,374 21J 2,568 2,940 266 2,923 2, 797 2,soe D 1.626 l. 616 1.349 2.152 l.431 l. 719 2.101 l. 559 1.946 l. 722 8 8 12 B 14 10 12 19 6 a 11 '1'751 N 2,160 l,lH l,121 l,748 l, 313 362 H7 835 419 l,094 D 0.655 0.897 0.839 l. 521 0.843 l. 845 2.385 l. 37) l. 674 l. 337 6 6 5 5 8 11 12 14 13 '1'752 N 1,2.81 l,713 247 l,015 1, 90 l, 6,320 3,107 761 l,587 l,992 D 0.404 0.501 0.905 l.306 0.939 0.112 0.786 l.959 0.804 0.357 & 15 15 19 14 17 20 22 23 lB 18 T8Sl N 1, 715 l,515 2,283 4,681 4 ,847 l,794 4,820 2,aH D l.980 l. 767 2.023 l.286 l.538 2.215 l.491 2.083 2.229 l.B16 & 8 10 16 14 12 15 14 16 ll ll T8S2 N l,700 2,479 3,295 2,327 2,820 2,707 1,615 1,647 780 2,152 D 0.704 l.387 1.120 l,333 l.051 1.331 l. 3L2 l.636 l.HS l.299 II 13 12 13 12 13 15 14 15 16 N 1,97' 2, 7:25 3,457 3,042 3,314 2,SSO l,8&0 1,963 2,776 I> 1.321 1.20* 1.203 1.364 1.138 l.543 l.S79 l.637 l.466 IA SALEH B 1978 w f--' I f--' lJ1 f--'
  • TAllLE 3 .1. 4-8 SEASONAL MEAN DENSITY BIOMASS OF BENTHOS TAK!:N ARTfFlCIAL ISLAND JN THE OELAWAQE RIVER, 1918. -****o*--**--*-e-**---------------*******----------------------***-*-*******-*-**-**-*--******-*-**********************************

SE A SOtl TEHP. ( C) RA ti GE ?'IE A'I SAL. c'P PT l HEAN TAXOt<O'IIC GROUP MICROCIO>JA il H'rt*C >tOC OELA OLIGOCt<AEIA PELECYPODA 8ALANIJS tiEOHYSIS LEU CON I SOP ODA Ul?HIPOOt. CECAPOOA OTHER TOTAL 01/01 -02129 O!:NSITY (NO/SQ M) HEAN MEAN X BIOMASS (M(,/SQ Ml MEAN MEAN X a LEVEL * * * * *

  • DENSITY (NO/S(l M) \ 03/01 -06/15 2.9 -21.6 12.6 0.0 4.1 1 o.o BIOMASS CMG/SQ >\) MEAN MEAN X MEAN "'!:A'< )'. U.03 12 0.48 29 1.03 1 21 4.91 21 0.75 17 0. t-8 22. 73 556 22.56 7 .SI+ 26.23 51 2.06 1.28 287 11
  • 64 341 1 2 .18 801 32.50 97 3.46 28 1.13 0.03 *
  • 98 3.50 170 6.89 168 6.00 346 14.04 9 0.32 63 2 .* 5 5 627 22.40 12 0.48 2.798 21464 J;A SALEM B 1978 * * * * * *
  • w I-' I I-' lJl N * * * * *
  • TABLE 2 .1. 4-B CONTINUED
  • * * *
  • SElSON CJ6t16 -09/15 09/16 -11/3U TE!olP. CC> RANC.E 2 3.0 -29.0 11. 2 -25.1 MEAN 26.2 16.8 SAL. <PPT>

2.0 -10.0 s.o -12.0 "4EAN 6.7 8.9 DENSITY BIOMASS DENSITY (NO/SQ Ml (MG/SQ Ml (NO/SQ Ml 01G/SQ 1-1) GROUP MEAN MEAN X MEAN MFAN x MEAf>I MEAN z MEAtl MEAN x MJCROCIONA 3 0.10 136 6.l:l7 0.13 80 3.76 CNIDARJA 29 0.98 7? 3.63 B 1.50 68 3.20 RHYNCriOCOELA 23 0.77 10 0.50 78 3.54 2U D.94 POLYCfiAETA 947 32.09 416 21 .02 3 71 16.87 472 22.n OLIGOCtHETA 670 22. 70 51 2.;1 769 34.98 59 2. i' 7 PELECYPOOA 21 0. 71 421 21.27 28 1.27 570 26.83 BALA'-US 693 2.S.4!S 635 32.08 196 8. 91 447 21.04 NEOKYSIS 13 0.44 3 0.15 4.18 26 1.22 LEUCON 10 O.H * "' 11 a.so 0.04 ISOPODA 290 9.82 119 6. 01 235 10.69 161 7.58 AMPHlPOOA 197 6.67 28 1. 41 309 14 .05 34 1. 60 DECAPODA 14 0.47 85 4.29 10 0.45 184 s.66 OTHER 41 1.38 3 0.15 63 2.86 2 0.09 TOTAL 21951 1,979 21198 21124 * "' REPORTABLE LEVEL IA SALEM 3 1978 DELAWARE 0 Bentho1 sampling stations l'l. -t Milu 0 1 2 I I I I I I 0 I 2 3 . l<llom*l*rl \.. rlA rATCtl HAND \ \ ,, \\ '\ \\ \ \ \ ' II II II ., II II * ** * * * * *. * * .

  • i PUBLIC S'1<VICE "l.C(;!"RIC

'"" CAS C0'11'AMY 1._B_e __ n't_h_o_s __ s_a_m_p_1_i_n_g_s_t_a_t_1_* o_n_s_-_1_9_7_s ___ ll ** Si\Ll::I.! NUCU.:,\H S'J'i\TIOH ' . f u ! Figure 3.1.4-1 3.1-153 *

  • * * * * . * * * * **
  • 100000] 10000 Legend !:,, P. litornlis

+ s. viridis X Turbclluriu 10 J F M A *M J J A s 0 N D J Monthly mean density of the top PUJJLIC J.:.:LECTmC AND GAS ranking ben thic taxa -1978 SALEM NUCLJ.:.:,\I? Gl::NERATING STATION Figure 3.1.4-2 3.1-154 H (J) ..+.-) (J) El 100000 10000 10 F M 9--. .. I .,,"Q I ' I \ I \ I \ I ' I \ I / t---i._ 'y < -\/ ""'>< \ /,' x GI..., .... .... 'q \ 1-r---'-.,,. ... -0" / /*"" \!51 . I ' I \ \ /i-_ ! \ / \/. \< i\ I '-1 . v* I *¥ \1 l A *M J J A s Legend o _ _ t:. C. po litu + C. lucustrc 0 N D *J Monthly mean density of the top ranking benthic taxa -1978 3.1-155 * * * * * * * * * * *

  • * * * * * * * * * **
  • 100000 ---rA-,, h 10000 / \ p ' CJ) A " ;-I --t-l e---D \ ',"'-,,

CJ) , I s CJ) -V/ I"'-, h cd *;j 1000 / cT l . \----rn '--.... b.0 s \ J\ ..__, (/} en cd 100 v / \ s 0 ..... \ m Legend Q 0 B. impr0\dsm1

cd CJ) 10 .(::.. S. viridis + M. balthica x Gun1mnrus sp; ----.--* 1 J F M A .M J J A s 0 N D* J PUlll.IC srmvtCE ELEC'l'IZ!C AND GAS cm!PANY SALE:M NlJCL8,\H ca-;m:RAT!NG S'Ji\'l'!ON Monthly mean biomass of the top ranking benthic taxa -1978 Figure 3.1.4-4 3.1-156

  • 100000 Legend 0 M. prolif crn * --*-----------c. v irgi11icu

+ c. po litu ---------- 10000 x C.

  • 1000
  • Q, I ',,f\ I I *' *. I I I I I I ' I 100 I \ I I '\ I I '\ I I 0 I I I I I I 10 I * \ I ' \ . I
  • J F M A .M J J A s 0 N D J * . . " PUJ!l.Jc sr:r,v1cE 1::r.1*:crn1c AJ-;D GAS Mon mean biomass of the top i ranking benthic taxa -1978 Ii SALSM NUCLI:,\J( GE,'ll:Hi\1'1NG STATlON '
  • r:
  • Figure 3.1.4-5 ** 3.1-157 *
  • * *
  • 0 C> 0 ..-t * ,............_

H Q) 0 .+-) 0 Q) co

  • s Q) H .* cO 0 ;:j a vi(Q I (/) 1* H Q) ,..0 s 0 0 ;:j 'tjl
  • q ..,._)
  • r-1 0 (/) 0 ** C\2 Q) !'.::) * ** l'UJJLIC s1mv1cE ELECT!Z!C in:D GAS CO.\lPANY . Seasonal SALEM NUCLJ:,\H GENJ*:H/\TING S'l'A'l'lON
  • 3.1-158 Key: M -M icroc ionn C -Cniclndn H -Hltync:hococ:

la PO *--Polychnctu OL -0 ligoclklctu P -Pc lccypodu B -N -Ncomysis L -Lcucon I -Isopodu A -Amphipoda D -Decupoda . 0 -Other Legend Ed 03/01 -06/15 !I 06/16 -09/15 D 00/16 -11/30 mean density of benthos 1978 Figure 3.1.4-6 J a a 0 ..-! Key:. M -M icroc ionu C -Cnidur iu H -Hhynchococ lu PO -Po lychuctu OL -0 ligochuclu P -Pc lccypodu l3 -Dubn us . N -Ncomysis L -"--Lcucon I -lsopodu A -Am phi poda D -Dccupoda . 0 -Other Legend rd 03/01 -OG/15 [j OG/113 -09/15 IJ 09/16 -11/30 rPLJllLIC i::u:cmrc cmtP.\NY I Seasonal mean biomass of ben thos SALEM NUCLl*:Al.1 Gt:NJ::HATING ,

  • 19 7 8 'ij 3.1-159 * * * * * ** * * ** * ** *
  • * * * * * * * * * **
  • 3.1.5 Blue Crab (ETS Section 3.1.2.l.lf)

The blue crab, Callinectes sapidus, is the most commercially valued aquatic organism in the Delaware estuary; it also supports an active sport fishery. This report discusses economics, abundance, distribution, and life stage of blue crab in the 1978 commercial pot fishery and in trawl and seine samples. The pot fishery generally captures crab larger than 76 mm (carapace width), while trawls and seines, which sample all sizes, are more effective in taking small crab

  • 3.1.5.1 Summary The blue crab was abundant and well distributed throughout the study area in all but winter months. Crab utilized the area for growth, mating, and nursery; spawning occurs farther south near the mouth of Delaware-Bay. Data on commercial aspects of the fishery were obtained by census and interview of selected crabbers who operate in the study area. Biological data were obtained from commercial crab pot catches, and in trawl and seine samples. In 1978, there were 36 licensed commercial crabbers (18 each in New Jersey and Delaware) who were known to operate in this area. The 1978 hard crab catch in the study area for Delaware and New Jersey combined was conservatively estimated at 12,000 bushels; 1,500,000 individual crab, or 219,360 kg of whole crab. The New Jersey portion of this catch was 99 percent of the state's entire reported landings of hard blue crab
  • The Delaware portion comprised 72 percent of that state's landings.

The 1978 catch of peeler crab in the study area was estimated at 110,000 individuals. The New Jersey estimated portion comprised more than 100 percent of that state's entire reported landings, which indicates an underestimate by the state; the Delaware portion accounted for 66 percent of that state's entire catch. Economically, the dockside value of the 12,000 bushels of hard crab was $192,000 ($16/bushel), and of the 110,000 individual peeler crab was $50,600 ($0.46/individual). 3.1-160 ----------, Mature male crab comprised 52.5 percent of the commercial catch in the study area. Over 94 percent of the crab taken in seine and trawl samples occurred from May through November. In daylight trawl samples, crab were more abundant in the southern portion of the study area. Typically, more crab were taken at night than during daylight. Peaks in trawl and seine catch were in June and October. Crab taken in June were generally older than one year; the October crab catch was mostly individuals spawned in 1978. The decrease in catch of older, marketable adults after June reflected their removal from the population by commercial crabbers. The mean size-class distribution of crab in trawl and seine samples reflected growth from January through August; its subsequent decrease reflected recruitment into the sample of the 1978 year-class. Numerous observations of crab matings were noted throughout the southern study area, while sporadic sightings of bearing female crab were only reported from the extreme southern reaches. 3.1.5.2 Materials and Methods COMMERCIAL CATCH All samples required by this ETS section were taken. Commercial catch data were obtained by census, interview 1 and accompanying crabbers who usually operate in the study area from May through October. The commercial season legally extends from March through November. A sub-sample of crabbers known to operate in the study area were censused by means of monthly questionnaires which ask for daily catch statistics. For a detailed description of catch landing estimation and catch sub-sampling and sample processing procedures see Volume 2 of the 1977 Annual Environmental Operating Report. Briefly, licensed crabbers fish baited pots and sort their catch into two groups: hard crab and peeler crab. The hard crabs are further sorted into categories of graded value (based on size, sex, condition, and market demands). 3.1-161 * * * *

  • e. * * * ** *
  • * * * * * ** * * * * **
  • The categories may vary, but are generally No. 1 (large mature male), No. 2 (small mature male), and No. 3 (mature female). Hard crab which are damaged or less than 5 inches (127 mm) in width, and peeler crab of less than 3 inches (76 mm) must, by law, be released
  • TRAWL AND SEINE SAMPLE All samples required by this ETS were taken. Samples were taken in all months except January and February when severe icing conditions precluded operations.

For details of trawl and seine sampling procedures see Volume 2 of the 1977 Annual Environmental Operating Report. Briefly, otter trawls were hauled on the bottom in river and creek trawl zones and seines were hauled at river and creek seine stations on a semimonthly schedule (Figs. 3.1.5-1, 3.1.5-2, 3.1.5-3). The trawl arid seine crab sample was processed in the same manner as the commercial catch

  • DATA REDUCTION Data are discussed on the basis of the following statistics:

bu/pd = number of bushels (bu) of crab captured in a pot (p) during one day (d); n/pd =number of individual crab (n) captured in a crab pot (p) fished for one day (d); n/T = number of crab (n) taken per trawl haul (T); and n/Coll. = number of crab (n) per seine collection (Coll.)

  • 3.1.5.3 Results Following a second consecutive winter (1977-1978) of unusually low temperature, crab catch levels remained severely reduced in the study area as compared to catches prior to 1977. This continued reduction was reflected in the commercial and trawl and seine catch. 3.1-162 COMMERCIAL CATCH Of the 36 licensed commercial crabbers who operated in the study area for most of the 1978 season, 18 were based in New Jersey and docked primarily in upper Mad Horse Creek, at Hancocks Bridge on Alloway Creek, and at the mouth of Stow Creek. The remaining 18 were based in Delaware and docked primarily at Flemings Landing on the Smyrna River, Collins Beach on the Delaware River, and at Delaware City. Most were family operations, and 65 persons ranging in age from their midteens to late 50's were involved in crabbing.

Data on the commercial crab pot catch was collected from June through November. Hara Crab Data supplied by nine crabbers (five based in New Jersey, four in Delaware) for 1978 indicate that their combined total catch of hard crab was over 4,304 bushels (Table 3.1.5-1). Of these, 3,221 bushels were taken in New Jersey. Twenty-seven crabbers who did not participate in the program are estimated to have taken over 7,700 bushels. The total catch of hard crab from the study area in 1978 probably exceeded 12,000 bushels. The annual estimated hara crab catch in previous years ranged from 7,000 bushels in 1977 to 45,000 bushels *in 1975. The total take of hard crab from the study area in 1978 was approximately 1,500,000 individuals (based on mean number of 125 crab per bushel in 1971 and 1976). By weight, the catch in 12,000 bushels was about 219,360 kg (based on mean weight of 18.3 kg per bushel in 1978). These estimates are conservative. Catch by small scale operations, the frequent reporting of smaller than realized catchr raiding of pots, and illegal crabbing all account for an unknown component of the actual harvest. The largest catch (unadjusted for effort) in New Jersey and Delaware waters combined was 2,091 bushels in July (Table 3.1.5-1). The August catch ranked second, September, thirdi October, fourth; followed by June and November. Monthly catch data adjusted to a per unit effort basis (bu/pd) are presented in Table 3.1.5-2. Based on the combined effort in New Jersey and Delaware, the largest catch was in July the smallest was in June (0.0117). The New catch was largest in July (0.0736) 3.1-163 * * * * * * * * * * *

  • * * * * * . * * * * **
  • and smallest in September (0.0366);

the Delaware catch was largest in July (0.0457) and smallest in June (0.0117). The adjusted catch was higher in New Jersey in all months sampled. In 36 of 39 months sampled over the past seven years adjusted catch was higher in Delaware . Data on the 1978 New Jersey commercial catch, most of which comes from the Delaware Estuary (including the study area), indicate that 71 crabbers licensed to fish 9,138 pots took some 7,080 bushels of hara crab (1978 pers. comm. with L. Albertson Huber, New Jersey Division of Fish, Game, and Shell Fisheries). Study program data indicate that the 18 crabbers operating near Artificial Island took 99 percent of this total. Data on the 1978 Delaware commercial crab catch, most of which comes from the same area, indicate that 40 crabbers took a reported total of 6,948 bushels of hard crab (1978 pers. comm. with Richard W. Coles, Delaware State Department of Natural Resources and Environmental Control). Study program data indicate that the 18 crabbers who operated near Artificial Island took 72 percent of this reported total

  • Peeler Crab All nine crabbers who regularly completed questionnaires also submitted data on their catch of peeler crab (Table 3.1.5-3).

These nine took 36,346 peeler crab (75 percent by the five New Jersey crabbers) from June through November 1978. The catch by 27 crabbers who did not participate in the program is estimated at 73,654 peeler crab (41,032 by 14 Delaware fishermen). The total peeler crab catch in the study area in 1978 is conservatively estimated at 110,000 individuals. Annual estimated peeler crab catch in the study area in previous years ranged from 39,700 individuals in 1973 to 233,870 individuals in 1976. The largest monthly catch, based on combined data from nine crabbers in New Jersey and Delaware, was 22,326 crab in July (Table 3.1.5-3). The monthly n/pd of peeler crab was highest in July in New Jersey (0.8501) and Delaware (0.5154), and lowest in October (0.0112 and 0.0094, respectively) (Table 3.1.5-4). On the average, New Jersey crabbers took more peeler crab than did Delaware crabbers. In each of the previous seven years, adjusted catch had been higher in Delaware. 3.1-164 I_ Records on the New Jersey 1978 commercial catch from the Delaware Estuary indicate that 71 took a reported 56,000 peeler crab (1978 pers. comm. with L. Albertson Huber)

  • Study program data indicate that the 18 New Jersey crabbers who operated near Artificial Island took 107 percent of this total. Records on the 1978 Delaware commercial catch from the Delaware Estuary indicate that 40 crabbers took a reported 75,900 peeler crab (1978 pers. comm. with Richard w. Coles). Study program data indicate that the 18 Delaware crabbers operating near Artificial Island took 66 percent of this total. Economic Aspects The wholesale price per bushel of hard crab in 1978 averaged $26 for No. 1, $16 for No. 2, and $11 for No. 3. A reasonable average price in 1978 was per bushel. The 12,000 bushels taken from the study area in 1978 had an estimated dockside value of $192,000.

The peeler crab catch is usually sold to buyers at dockside who hold them until they molt and are soft. The price to crabbers averaged 46 cents per peeler crab. At this price, the 110, 000 peeler crab taken .by commercial crabbers in 19 78 had an estimated value of $50,600. A more lucrative but much smaller market for peeler crab is to local sport fishermen who consider them preferred bait for fishes such as weakfish. The retail price per dozen ranged from $8 to $12 and averaged $9. Composition of Catch by Sex, Size, and Stage of Development A total of 1,352 blue crab taken in 149 individual crab pot samples was (Tables 3.1.5-5, 3.1.5-6). These were taken in zones SWl through NWl, RI2, and SEl through SE3 on seven dates from July 12 to October 20 (Fig. 3.1.5-1). Catch data adjusted for effort (individuals/pd) are presented in Table 3.1.5-5. Mean monthly catch was highest in July (17.0 crab/pot) and lowest in September (5.9). The mean catch per pot in 1978 was 9.1 crab. Prior to 1978, mean pot catch ranged from 5.5 crab in 1977 to 21.6 crab in 19 76. 3.1-165 * * * . *. * * * ** *

  • * * * * * * * * * *
  • Data on catch composition (percent catch) are presented in Table 3.1.5-6. Mature male crab comprised 52.5 percent of the 1978 catch. Percent catch was highest in October (72.9) and lowest in September (32.l). Immature male crab comprised the smallest percent of the annual catch (1.4). Percent catch was highest in October (2.6) and lowest in August and September (0.4). Mature female crab comprised 32.2 percent of the annual catch. Percent catch was highest in September (61.0) and lowest in October (9.4) . Immature female crab comprised 13.9 percent of the annual catch. Percent catch was highest in July (17.2) and lowest in September (6.4). Of 28 peeler crab (2.1 percent of the total catch) (Table 3.1.5-7) taken in 149 samples, 3.6 percent was mature male, 3.6 percent was immature male, and 92.8 percent was immature female. Monthly mean width of crab, by sex and developmental stage, are presented in Tables 3.1.5-8 through 3.1.5-11 and summarized in Table 3.1.5-12.

The mean size of mature male crab was 127.4 mm in July; it increased to 150.3 mm in September (Table 3.1.5-8). At the end of monitoring in October mean size had decreased to 141.2 mm. The monthly mean size of immature male ranged from 103.2 mm in July to 110 mm (1 specimen) in August (Table 3.1.5-9). The mean size of mature female ranged from 152.0 mm in July to 167.5 mm in October (Table 3.1.5-10). The monthly mean size of immature female ranged from 114.6 mm in September to 125.2 mm in August (Table 3.1.5-11)

  • TRAWL AND SEINE SAMPLE Trawl Catch A total of 873 crab was taken in 863 bottom trawl collections in the Delaware Estuary. Over 94 percent (828) was captured from May through November in 662 collections
  • Of the total, 822 were taken in 849 collections during daylight and 51 were taken in 14 collections at night. 3.1-166 During daylight 775 were taken in 762 collections in the west sector (which includes zones NW2-SW1), and the east sector (which includes zones NE2-SEO, Ril, and RI2) combined, and 47 were taken in 87 collections in the shipping channel. An additional 10 crab were taken in 111 collections in the local tidal creeks (Fig. 3.1.5-2).

The mean catch per trawl in the Delaware Estuary in 1978 was 1.0 crab; it had ranged from 0.6 in 1977 to 5.0 in 1975. In combined river trawl samples during daylight in the west sector, 286 crab were taken in 260 collections (Table 3.1.5-13). In the east sector, 489 crab were taken in 502 collections (Table 3.1.5-14). No crab were taken in March and only one crab was taken in April (zone SEl). From May through August crab remained sparsely distributed (n/T range over the period; 0.2-0.8, west sector; 0.1-0.5, east sector) (Figure 3.1.5-4). Catch increased markedly in September (1.7, west sector; 1.5 east sector), and peaked in October (4.2, west sector; 4.3, east sector). Catch decreased in November (2.3, west sector; 1.6, east sector) and December (0.6, west sector; 1.0, east sector). In west and east sectors, annual catch per zone increased from north to south (Fig. 3.1.5-5). Within the west sector, annual catch was greater in zones SWl through W3 (n/T range: 0.9-1.8) than in zones NWl and NW2 (n/T range: 0.2-0.4). Within the east sector, annual catch was greater in zones SEO through SSC (n/T range: 1.1-2.7) than in zones E2 through NE2 (n/T range: 0.2-0.6). The annual n/T was similar in the west sector (1.1 crab) and in the east sector (1.0). A total of 47 crab was taken in 87 hauls (n/T = 0.5) made in the shipping channel from March through December (Table 3.1.5-15). In night samples from March through October in zone W3, 3 crab (n/T = 0.4) were taken in 7 hauls (Table 3.1.5-16); in Zone SSC 48 crab (n/T = 6.9) were taken in 7 hauls (Table 3.l.5717). The greatest catch occurred in Zone SSC in September (n/T = 18.0). More crab were taken at night (n/T = 3.6) than during daylight (1.0). Seven crab (n/T = 0.2) were taken in Appoquinimink Creek and three (O.l) were taken in Alloway Creek from March through December. No crab were taken in 28 collections in Hope Creek. All crab taken in Appoquinimink Creek bccurred in 3.1-167 * * * * * * *. * * * ** *

  • * * * * * * * * **
  • October (n/T = 1.2), while crab occurred in Alloway Creek in July (n/T = Oo3), September (0.3), and October (0.2). Seine Catcb A 68.6 m, 1.3 cm mesh bag seine was fished during daylight and at night semimonthly from March through October at Augustine Beach and at Sunken Ship Cove (stations AUB3 and SSC6, Fig. 3.1.5-1).

During daylight, crab were taken in June and August through October samples (Tables 3.1.5-18, 3.1.5-19). At night crab were taken in May, June, and August through bctober (Table 3.1.5-20, 3.1.5-21). During daylight, 27 crab were taken in 7 collections at Station AUB3, and 25 crab were taken in 7 collections at Station SSC6. At night, 115 crab were taken in 7 collections at Station AUB3, and 54 crab were taken in 7 collections at Station SSC6. Annual mean catch for combined stations at night (n/Coll. = 12.1) was greater than during daylight (3. 7). Ten seine stations on the Delaware Estuary were sampled semimonthly during daylight from March through December with 3.0 m, 0.3 cm mesh and 7.6 m, 0.6 cm mesh seines (stations PHD1-MHC8, Fig. 3.1.5-1). A total of 74 crab were taken in 170 collections all of which occurred from May through November (Table Annual mean catch per station was highest (1.4 specimens) at Station AUB3. Highest monthly mean catch was in September (2.4 specimens)

  • From March through December, 4 crab were taken in 42 collections (n/Coll. = 0.1) in Appoquinimink Creek and 5 crab were taken in 37 collections (0.1) in Alloway Creek (Fig. 3.1.5-3).

Monthly mean catch per sample was highest in September in both Appoquinimink (n/Coll. = 1.0) and Alloway creeks (1.7). Size-Class Distribution Size-class distribution of crab taken in trawl and seine catches from April through December is given in Tables 3.1.5-23 through 3.1.5-32. Monthly mean width of crab taken in the river by trawl during daylight increased from 48 mm (1 specimen) in April to 128.3 mm in July (west sector) and 139.0 mm in August 3.1-168 (east sector) (Tables 3.1.5-23, 3.1.5-24; Fig. 3.1.5-6). The appearance in the population of smaller individuals of the 1978 year-class in July and August contributed, along with removal of larger specimens by crabbers, to a decrease in monthly mean width in August (108.5 mm, west sector) and September (75.9 mm, east sector) and subsequent months. The mean width of crab decreased steadily through December (36.0 mm, west sector; 35.9 mm, east sector). Mean size of crab taken in combined west and east sectors in 1978 was 59.0 mm. It had ranged from 49.6 mm in 1973 to 87.6 mm in 1971. Crab taken in the shipping channel during daylight were largest (130.5 mm) in July (Table 3.1.5-25). Crab taken at night were largest in August (one 160 mm specimen, W3) and June (94.7 mm, SSC) (Tables 3.1.5-26, 3.1.5-27). Specimen size in creek trawls (70.7 mm, Appoquinimink; 57.7 mm, Alloway) was similar to that in river trawls. Crab taken by 68.6 m seine during daylight were largest in June at AUB3 (76.0 mm) and August at SSC6 (124.5 mm) (Tables 3.1.5-28, 3.1.5-29). At night, maximum size occurred in June at AUB3 (95.5 mm) and in September at SSC6 (39°.5 mm) (Tables 3.1.5-30, 3.1.5-31). The mean width of crab taken by 3.0 m and 7.6 m seines in the river during daylight was greatest in July (59 mm, l specimen) (Ta-ble 3.1.5-32). Mean width of crab taken by 3.0 m seine in Appoquinimink and Alloway creeks was greatest in August (31.0 mm) and September (36.6) respectively. OBSERVATIONS ON MATING AND EGG-BEARING CRAB During 1978 a total of 203 observations of mating was reported in July and August by four commercial crabbers who operate in the southern part of the study area. In 1978, two commercial crabbers reported 2 captures of egg-bearing female crab in August and September, in zones SE3 and SWl. 3.1-169 * * * * * * *. * * * ** *

  • TABLE 3,1.5-2 MEAN NUMBER OF BUSHELS OF MARKETABLE HARD BLUE CRAB, CALI,INECTES SAPIDUS, LANDED COMMERCIALLY IN 1978 Weighted Total Crabber June July
  • Mean per Sept ££.!:. Nov Crabber NEW JERSEY A-1 .0.0834 .0.0656 0.0407 0.0704 B-2 0.0909 0.0618 0.0386 0.0465 0.0628 c 0,0555 0.0425 0,0267
  • 0.0454 I-1 0.0897 * * * *o.0897 J 0.0487 0.0402 0.0405 0.0518 0;0450
  • Monthly Means 0.0736 0.0525 0.0366 0.0492 DELAWARE J-3 0.0573 0.0360 0.0465 J-4 0.0117 0.0481 0.0409 0.0284 0.0349 K 0.0358 0.0461 0.0337 0.0416
  • M-1 0,0415 0.0275 0,0342 0.0353 0,0328 0.0327 Monthly Means 0.0117 0.0457 0,0376 0,0321 0.0353 0.0328 Monthly Means for All Crabbers 0.0117 0.0612 0,0451 0.0347 0.0445 0.0328 * *
  • Data not supplied IA SALEM CR 1978 3.1-170 *
  • TABLE 3.l.5-3 * 'NUMBER OF INDIVIDUAL MARKETABLE PEELER BLtJE CRAB, CALLINF.CTES SAPIDUS, LANDED COMMERCIALLY IN 1978 .'l'otal per Crabber July Sept Crabber NEW JERSEY A-1 *9,!120 *4.,:785 125 14,430
  • il-2 2,068 1,387 140 SS 3,650 c 2,044 .. *
  • I-l 2,609 * * ** 2,609 J 3,158 l,478 9 0 4,64S Totals 19,399 7,6SO 274 SS 27,378 DELAWARE
  • J-3 881 1,616 2,497 J-4 689 779 182 4 l,654 Jt 426 1,249 123 l,798 M-1 841 2,092 SB 27 1 3,019 689 2,927 5,139 185 27 l *e,968 Totals for All
  • Crabbers and Grand Total 689 22,326 12,789 459 82 l 36,346 TABLE 3 .1. 5-4 BEAN NUMBER OF INDIVIDUAL MARKETABLE PEELER
  • BLUE CRAB, CALLINECTES SAPIDUS, LANDED COMMERCIALLY IN 1978 Weighted Total Mean per Crabber July Seot Oct Nov Crabber NEW JERSEY
  • A-1 1.5330 0.9457 0,0661 l.0965 B-2 0.4381 0,3584 0.0384 0.0224 0.2447 c 0.3698 * *
  • 0.3698 I-1 0.6287 * * .. 0.6287 J 1.2811 0.6907 0.0046 0 o.5850 Monthly Means D.8501 0.6649 0.0364 0.0112
  • DELAWARE J-3 0.2917 0.5247 0.4093 J-4 0.5029 0.3640 0.0827 0.0027 0.2300 J: 0.5757 0.4678 0.1255 0.4096 M-l 0.8302 0.5233 0.0181 0.0094 0.0164 0.2711 Monthly Means 0.5029 0.5154 0.3996 0.0488 0.0094 0.0164
  • Monthly Means for All Crabbers 0.5029 0.7014 0.5133 0.0426 0.0106 0.0164
  • Data not supplied
  • IA SALEM CR 1978 3.1-171 *
  • * * * * * * * * * * *
  • TABLE 3. l. 5-5 MEAN NUMBER OF BLUE CRAB, CALLINECTES SAPIDUS! *rAKEN PER SAMPLED CRAB POT IN 1978. NUMBER OF POTS SAMPLED ARE IN PARENTHESES July August Seetember October Mean
  • SE-3 18.0 (20) 5.1 (23) 11.1 ( 4 3) SE-2 8.5 'al 8.5 ( 8) SE-1 5.2 (17) 5.2 ( 17) Mean (East Zone) 18.0 (20) 6.28 ( 25) 5.1 (23) 9.J ( 68) NW-1 6.6 ( 5) 6.6 ( 5) RI-2 8.3 ( 3) 8.3 ( 3) W-3 4.7 w ( 3) 4.7 ( 3) I-' W-2 4.3 (8) 4.3 ( 8) I W-1 18.0 ( 5) 5.0 ( 4) 12.2 (9) I-' -.J tv SW-2 8.1 (12) 8.1 ( 12) SW-1 6.9 (19) 8.7 ( 22) 7.9 ( 41) Mean (West Zone) 15.8 (17) 5.5 (23) 6.9 (19) 8.7 (22) 8.9 (81) Mean (Combined Zones) 17.0 (37) 6.7 ( 48) 5.9 ( 42) 8.7 (22) 9.1 ( 149) IA SALEM CR 1978 _ ___J TABLE 3.1.5-6 CATCH AND PERCENT OF BLUE CRAB, CALLINECTES SAPIDUS, IN CRAB POT SAMPLES BY SEX AND DEVELOPMEN'rAL S'.!:AGE IN 1978 Mature Male Imme tu re Male Mature Female Immature Female Total Zone Catch % Catch % Catch % Catch % July SE3 163 45.4 11 3.1 118 32.9 67 10.7 359 I'll 50 55.6 1 1.1 20 22.2 19 21.l 90 Sl'i2 104 58.l 53 29.6 22 12.3 179 Total 317 50.5 12 1.9 191 30.4 108 17.2 628 . August SE2 41 60.3 1 l. 5 21 30.9 5 7.4 68 SE! 68 76.4 13 14.6 8 9.0 89 NWl 24 72. 7 5 15.2 4 12.l 33 RI2 15 60.0 9 36.0 1 4.0 25 w l'i3 8 57.1 4 28.6 2 14.3 14 1'12 12 35.3 15 44.l 7 20.6 34 f-' Wl 5 25.0 I 7 35.0 8 40.0 20 f-' Total 173 61.1 1 0.4 74 26.2 35 12.4 283 -.) w seetember SE3 31 26.3 1 0.9 76 64.4 10 8.5 118 SW! 49 37.4 76 58.0 6 4.6 131 Total 80 32.1 1 0.4 152 61.0 16 6.4 249 October SW! 140 72.9 5 2.6 18 9.4 29 15.l 192 .Total 140 72.9 5 2.6 18 9.4 29 15.1 192 Grand Total 710 52.5 19 1.4 435 32.2 188 13.9 1,352 IA SALEM CR 1978 * * * * * * * * * * *
  • *
  • TABLE 3,1.5-7 NUMBER i\ND PERCENTAGE OF PEELER nLUE CRAB, CALLINECTES SllPIDUs, TAKEN BY CRAil POT IN 1978 All months July l\ugust September October Combined
  • n Percent _..!:._ Percent n Percent n Percent __!!__ Percent ---------SE-3 19 5.0 0 o.o 19 '1. 0 SE-2 l 1. 5 l 1.5 SE-l 1 l.l 1 l.l Total and Percentage 19 s.o 2 l.3 I) o.o 21 3.3 NW-1 l 3.0 l 3.0 RI-2 0 o.o 0 I). 0 W-3 0 o.o 0 o.o W-2 1 2.9 l 2.9
  • w-1 2 2.0 0 o.o 2 1.8 sw-2 2 1.0 2 1.0 $W-l 0 o.o l o.s l 0.3 Total and Percentage 4 l.5 2 1.6 0 o.o 1 o.s 7 l.O Total and Percentage
  • for All Zones Combined*

23 3.7 4 l.4 0 o.o l 0.5 28 :? .1

  • TABI.E 3. l. 5-8 MEAN CARAPACE WIDTH (in mm) OF MATURE MALE BLUE CRAB, CALLINECTES SAPIDUS, TAKEN BY CRAB POT IN 1978. NUMBER OF ---C-RABS MEASURED, IN PARENTHESES Mean of July Auqust SeEtember October Means SE-3 124.7(163) . 148. 7 (31) 136.7(194)
  • SE-2 143.0(41) 143.0(41)

SE-1 142.7(68) 142.7(68) Mean of Means 124. 7 (163) 142.8(109) 148. 7 (31) NW-1 137.3(24) 137.3(24) RI-2 135.5(15) 135.5(15) W-3 150.8(8) 150.8(8) w-2 134.8(12) 134.8(12)

  • W-1 128.7(50) 128.8(5) 128.8(55) sw-2 128.8(104) 128.8(104) sw-1 151.9 (49) 141.2(140) 146.6(189)

Mean of Means 128.8(154) 137.4(64) 151.9 (49) 141.2(140) Mean of Means (All Zones)-127.4(317) 139.0(173) 150.3 (BO) 141.2 (140)

  • IA SALEM CR 1978 ** 3.1-174 *
  • TABLE 3.1.5-9 MEAN CARAPACE WIDTH (in nun) OF IMMATURE MALE BLUE CRAB, CALLINECTES SAPIDUS, TAKEN BY CRAB POT IN 1978. NUMBER OF CRABS MEASURED, IN PARENTHESES July August* Mean of seetember October Means SE-3 102.3(11) 105 (1) 103.6 (12)
  • SE-2 110,1) 110(1) SE-1 Mean of Means 102.3(11) 110(1) 110 (1) RI-2 W-3 W-2
  • w-1 104 (1) 104 (1) sw-2 SW-1 107.0(5) 107.0(5).

Mean of Means 104 (1) 107.0(5) Mean of Means (All Zones) 103.2(12) 110 (1) 105(1) 107.0(5)

  • TABLE 3.1.5-10
  • MEAN CARAPACE WIDTH (in nun) OF MATURE FEMALE BLUE CRAB, CALLINECTES SAPIDUS, TAKEN BY CRAB POT IN 1978. NUMBER OF
  • CRABS MEASURED, IN PARENTHESES Mean of July August SeEtember October Means SE-3 151.0 (118) 161.5(76) 156. 2 (194') SE-2 164. a c21i 164.8 (21) SE-1 162. 2 (13) 162.2 (13)
  • Mean of Means 151.0 (118) 163.5(34) 161.5 (76) NW-1 168.4 (5) 168.4(5) RI-2 172.3(9) 172.3(9) W-3 158.5(4) 158.5(4) w-2 170.9(15) 170.9(15)

W-1 151.6(20) 170.9 (7) 161.2 (27) SW-2 153.5(53) 153.5(53) SW-1 168.5(76) 167.5(18) 168.0(94) ., I Mean of Means 152.6(73) 168.2 (40) 168.5(76) 167.5(18) i Mean of Means (All Zones) 152.0(191) 166.8(74) 165.0(152) 167.5(18) IA SALEM CR 1978 * ** 3.1-175 *

  • * * * * * * * * * * *
  • TABLE 3.1.5-11 MEAN CARAPACE WIDTH (in mm) OF IMMATeRE FEMALE BLUE CALLINECTES SAPIDUS, TAKEN BY CRAB POT IN 1978. NUMBER OF CRABS MEASURED, IN PARENTHESES Mean of Zone July August se2ternber October Means SE-3 119. 2 (67) 107.3(10) 113.2(77)

SE-2 125.0(5) 125.0(5} w SE-1 125.9(8) 125.9(8) I-' I Mean of Means 119.2(67) 125.4(13) 107.3(10) I-' -..J °' NW-1 119.5(4) 119.5(4). RI-2 ;Ll 7 (1). .. 117(1)" W-3 134.5(2) 134.5(2) W-2 122.9(7) 122.9(7) W-1 118. 3 (19) 131.3(8) 124.8(27) SW-2 119.0(22) 119.0(22) SW-1 122.0(6) 124.1(29) 123.0(35) Mean of Means 118.6(41) 125.0(22) 122.0(6) 124.1(29) Mean of Means (All Zones) 118.8(108) 125.2(35) 114.6(16) 124.1(29) IA SALEM CR 1978 TABLE 3.i.s-ii SIZE-CLASS (carapace width in mm) DISTRIBUTION OF BLUE CRAB, CALLINECTES SAPIDUS, TAKEN BY CRAB POT IN 1978 July August September Carapace Mature Immature Mature Immature Mature Immature Mature Immature Mature Immature Mature Immature Width (mm) Male Female Female Male Male Female Female Male Male Female 70-74 1 75-79 80-84 85-89 90-94 1 (1) 1 '95-99 1 2* 1 (1) 100-104 8 3 (1) 4 (3) 2 1 1 105-109 20 s s (5) 2 1 3 1 3 110-114 39 1 14 (5) 2 1 2 2 1 2 w 115-119 41 21 .(5) 8 6 (1) 1 1 3 120-124 41 1 24 (1) 17 3 (2) 7 1 1 I--' 125-129 34 1 8 (1) 11 8 1 I 130-134 36 4 6 19 6 1 I--' 135-139 35 11 3 24 4 8 2 2 -...) 140-144 29 21 22 1 5 1 -.J 145-149 16 30 16 5 (1) 7 1 150-154 8 39 18 4 4 11 155-159 6 37 12 7 5 14 160-164 3 26 13 11 6 28 165-169 14 1 15 9 24 170-174 5 6 16 7 28 175-179 1 6 8 16 180-184 8 5 18 185-189 2 1 5 190-194 1 l 195-199 200-204 205-209 n 317 11 (1) 191 86 (22) 173 1 74 31 (4) 80 1 152 16 x 126.7 102.4 151.7 119.0 140.8 110 167.0 125.9 150.7 105 165.0 112.8 IA SALEM CR 1978 * * * * * * * * * * * * *

  • * * *
  • Carapace Mature Width (111111) Male 70-74 75-79 80-84 85-89 95-99 100-104 105-109 4 110-114 2 115-119 B 120-124 13 w 125-129 11 130-134 13 I-' 135-139 18 I 140-144 17 I-' 145-149 10 --...J 150-154 13 (X) 155-159 10 160-164 6 165-169 4 170-174 5 175-179 2 180-184 3 185-189 190-194 1 195-199 200-204 205-209 n 140 x 141.2 * *
  • TABLE 3.1.5-12 CONTINUED October Immature Mature Immature Male Female (1) 1 3 1 3 2 5 5 4 1 3 3 2 1 1 3 5 3 3 2 4 (1) 18 29 107.0 167.5 124.1 * * * * *
  • Total 'Mature .Immature.

Mature Immature Male Female 1 (1) l 1 (1) 1 2 l (1) 11 4 (1) 5 (3) 29 6 12 (5) 45 2 2 21 (5) SB 2 1 35 (6) 78 2 33 (3) 56 1 21 (1)

  • 1 68 5 16 85 13 12 73 22 3 49 37 1 (1) 43 54 33 58 28 68 14 SB 18 52 10 26 8 28 1 7 2 1 710 17 (2) 435 162 (26) 135.7 104.3 159,6 120,B IA SALEM CR 1978 w f-' I f-' -...] "°
  • LOCA 11ori JAN TABLE: 3.1.5-13 MONTHLY MEAN NUMBER OF BLUE CRAB, CALLINECTES SAPIDUS, TAKEN DURING DAYLIGHT BY 4.9 TRAWL IN WEST RIVER ZONES, 1978. FEo MAR APR MAY JUN JUL IHT T NIT NIT T NIT T NIT T NIT T NIT o.o 2.0 o.o 4.0 o.o 4.0 0.3 4.0 0.3 4.0 II* 1 o.o 2.0 O.D s.o o.o 4.0 lJ. 0 . 6.0 o.s 4.0 w.;3 0.0 3.0 o.o 5.0 o.o 5.0 0.8 6.0 0.3 4.0 o.o 2.0 o.o 4.0 0.3 4.0 0.5 4.0 o.o 4.0 w-1 o.o 2.0 0.0 4.0 o.o 4.0 0.3 4.0 0.3 4.0 o.o 2.0 Q". 0 4.0 o.s 6.0 1
  • 8 5.0 1
  • 0 4.0 Sw 1 o.o 2.U 0.0 4.0 0.3 4.0 1. 8 4.0 o.o 4.0 CRAB TOTALS o.o o.o o.o o.o s.o 25.0 9.0 .. 0 .. COLL. 15 .o 30.0 31. 0 33.0 28.0 NIT o.o o.o 0.2 0.8 0.3 LOC*\T ! ON AUG SEP OCT NOV DEC CATCH I UNIT NO. CRAB NIT T NIT T NIT T NIT T NIT T EFFORT COLL. TOTALS r..2 0.5 2.0 0.5 2.0 2.5 4.0 o.o 4.0 o.o 2.0 0.4 32.0 14.0 I'/',.'] 0.0 4.0 o.o 2.0 1.3 4.0 o.3 4.0 o.o 2.0 0.2 37.0 8.0 w*3 o.o 5.0 0.4 s.o 5.0 5.0 1. 3 4.0 o.o 2.0 0.9 44.0 38.0 1.-2 0.5 4.0 ,
  • 3 4.0 5.0 4.0 8.0 4.0 2.0 2.0 1. 8 36.0 66.0 .,,_, o.s 4.0 1.3 4.0 3.5 4.0 2.8 4.0 o.o 2.0 0.9 36.0 34.0 Sw2 0.3 *4.0 6.0 4.0 4.5 4.0 o.o 4.0 0.5 2.0 1.5 39.0 60.0 s .... , 1. 0 4.0 1.3 4.0 7.8 4.0 3.5 4.0 2.0 2.0 1 .8 36. (J 66.0 CRAB TOTALS 10.0 42.0 123.0 63.0 9.0 rw. COLL. 27.0 25.0 29.0 28.0 14.0 260.0 NIT 0.4 1.7 4.2 2.3 0.6 1 .1 NIT PER 10 MINUTE COLLECTION.

IA SALEM CR 1978 * * * * * * * * * * * * *

  • w . I-' I I-' co 0 * * * * * * * *
  • TABLt 3.1.S-14 MONTHLY MEAN NUM8ER Of BLUE CRAB, CALLlNECTES SAPlDUS, TAKEN DURING DAYLIGHT BY 4.9 METER TRAWL 11'1 EAST AND REEDY ISLAND ZONES, 1978. * *
  • LOCATION JAN FEB APH V JUN JUL -----------------------------------------------------------------------------------------------------------------------------------

NIT T NIT T NIT T NIT T NIT T NIT T NIT T NE2 ----u.o 2.0 o. 0 4.0 o.o 4.0 0.3 4.0 o.o 2.0 NEl ----u.o 2.0 u.o 4.0 u.o 4.0 o.o 4 .. 0 o.u 4.0 E-o ----u.o 2.0 o.o 4.0 o.o 4.0 o.o 4. (j o.o I.. 0 <-s ----o.o 2.0 o.u 4.0 o.o 4.0 (J. 3 I,. 0 o.s 4.J E-4 ----(J. 0 2.0 o.o 4.0 0.3 4.0 o.o 4.0 (J. 3 4.0 ----o.u 2.0 o.u 4.0 o.o 4.0 0.3 6 .(I O.o 4.0 Rl1 ----u.o 2.0 o.o 4.U o.o 4.0 0.0 5. (J 0.5 I.. G E-3 ----o.o 2.0 o.o 4.0 o.o 4.0 o.o 4.0 0.5 4.0 E-2 ----o.o 2.0 0.0 4.0 U.3 4.0 0.0 4.0 u .. 5 4.0 SSC ----o.o 2.0 o.o 3.0 0.3 3.0 2.3 3.U 1.0 2.0 E-1 ----o.o 2.0 o.o 4.0 0.5 4. 0. 0 * .3 4.0 (J. 5 4.0 SE3 ----o.o 2.0 o.o 4.0 o.o 4.0 o.o t ** 0 u.u 4.0 SE2 ----o.o 2.0 0.0 4.0 o.o 4.0 0.8 4 .. 0 0.8 t. .. o SE1 ----o.o 2.0 0.3 4.0 o.o 4.0 (J. 5 4.0 2.0 4.0 SEO ----o.o 2.0 u.o 4.0 0.3 4.0 0.8 4 .. o 0.5 4 .. u CRAB TOTALS o.o 0.0 o.o 1.0 6.0 20.0 29.0 NO. COLL. --30.0 59.0 59.0 62.0 56.0 NIT --o.o o.o 0.1 0.3 0.5 NIT ; PER 10 MINUTE COLLECTION. IA SALO\ CR 1978 * ** w . I-' I I-' co I-'

  • TABLE :S.1.5-14 CONTlNUEO LOCATION AUG SEP OCT NOV DEC CATCH I UNIT tJ 0. CRAB 11/T T NIT T N/T T N/T T NIT T EFFORT COLL. TOTALS i, E 2 0.0 2.0 o.o 2.0 2.5 2.0 o.o 4.0 o.o 2.0 0.2 28.0 6.0 NI: 1 o.s 2.0 0.5 2.U 2.5 4.0 0.5 4.0 0.5 2.0 0.5 32.0 15. 0 E*o o.u 4.0 o.o 4.0 3.8 4.0 o.o 4.0 o.o 2.0 0.4 36.0 15.0 E-5 0.3 4.0 0.3 4.0 o.s 4.0 0.5 4.0 1.5 2.0 o.3 36.0 1 2. [J E*4 (). 0 4.0 0.3 4.0 0.8 4.0 o.o 4.0 o.s 2.0 0.2 36.0 7.0 Rl2 o.o 2.0 1
  • 5 2.u 4.5 2.0 o.u 2 .* 0 u.o 2.0 0.6 30.0 17 .o RI 1 o.o 2.0 0.5 2.0 3.0 2.u o.o 2.0 0.5 2.0 0.3 29.0 1 o.o E-3 0.3 4.0 u.o 4.0 2.0 4.U 0.8 4.U o.o 2.0 0.4 36.0 14.0 E-2 0.3 4.0 1.0 4.0 2.3 4.U o.o 4.0 o.o 2.0 o.s 36.0 17 .o SSC 0.5 2.0 4 .* 0 2.0 7.0 3.0 1.0 2.0 o.o 1.0 1
  • 8 23.0 42.0 E-1 o.s 4.0 2. tJ 4.0 5.3 4.0 1 .o *4.0 o.o 2.0 1 .1 36.0 40.0 SU o.o 4.0 5.5 4.0 5.3 4.0 1.8 4.0 0.5 2.0 1.4 36.0 51.0 SE2 0.5 4.0 0.5 4.0 9.0 4.0 4.3 4.0 0.5 2.0 1. 8 36.0 64.0 SE1 0.3 4.0 2.3 4.0 2.8 4.0 11. 5 4.0 2.5 2.0 2.3 36.0 83.0 SEO [J. 8 4.0 3.5 4.0 13.0 4.0 1.0 4.0 B.5 2.0 2.7 36.0 96,0 CRAB TOTALS 13.0 74.0 229.0 8 7. 0 30.0 . 489.0 NO. COLL. so.a so.ci 53.ci 54.0 29.0 502.0 NIT .u .3 1
  • 5 4.3 1.6 1.0 1.0 NIT :z NU:>!BER PER 10 MINUTE COLLECTION.

IA SALEM CR 1978 * * * * * * * * * * * *

  • w I-' I I-' co N * *
  • LOCA TlON JAt. N T CHAl Cn A 2 CHA3 CHA4 CriAS CRAB TOTALS o.o NO. COLL. NIT * * * * * ** TABLE 3.1.5-15 MONTHLY MtAN NUMBER OF BLUE CRAB1 CALLINECTES SAPIDUS1 TAKEN DURING DAYLIGHT BY 4.9 METER lN CHANNEL ZONES, 1978. FEB MAR APR MAY N T N T N T N T N 0 1.0 0 2.0 0 1.0 0 0 1-0 0 2.0 0 2.0 0 0 1
  • o 0 2.0 0 2.0 0 (J 1.0 0 2.0 0 2.0 0 0 1
  • 0 0 2.0 0 2.0 0 0.0 o.o o.o o.o o.o 5.0 10.0 9. (J o.o o.o o.o o.o *
  • JUN JUL T N 2.0 4 2.J 2. ll 0 2.0 2.0 2 2. u 2.0 5 2.0 2.0 0 2.u 11 -0 10.0 1u.o 1. 1 LOCAllON AUG SEP OCT NOV CAT CH I U'l IT l';Q. CRAB N T N N T N T N T EFFORT COLL. TOTALS CHA1 0 2.0 11 2.0 1 2.0 2 2.0 4 1. 0 1. 3 1 7. u 22.U CHA2 0 2.0 6 2.0 4 2.0 0 2.0 0 1. 0 o.o 1 d .o 1(J.0 CHAS 0 2.0 1 2.Ll 2 2.0 1 2.0 0 1.0 0.3 18. u 6.0 CHAI+ 0 2.0 1 1.0 2 2.0 0 2.0 0 1.0 0.5 17. [J 8.0 CHAS 0 2.0 0 1.0 0 2.0 0 2.0 1 1.0 0. 1 1 7. 0 1.0 CRAB rorALS o.o 19 .o 9.0 3.0 5.0 47.0 rio. COLL. 10.0 8.0 10.0 1 0 .o 5.0 87.0 NIT o.o 2.4 0.9 o. :-s 1.0 0.5 NIT NUM!H,R PER 20 MINUTE COLLECTION.

IA SALEM CR 19 78 *

  • w I-' I I-' OJ w LOCATION JAN N/T T w-3 CRA8 TOTALS 0.0 NO. COLL. NIT LOCAT!O;:

AUG TABLE 3.1.5-16 MONTHLY MEAN NUMBER OF BLUE CRA81 CALLINECTES SAPIOUS, TAKEN AT NIGHT BY 4.9 METER TRAWL IN W-3, 1978. FEB MAR APR MAY NIT NIT T NIT T NIT T ll.O 1.0 o.o 1.0 o.u 1.0 0.0 o.o o.o 0.0 1.0 1.0 1.0 o.o o.o o.o SEP OCT tWV DEC JUN JUL NIT T NIT 1.0 1.0 1.0 o.o 1.0 1.0 N/T N/T T NIT T NIT T NIT T 1.0 1.0 1.0 1.0 o.o 1.0 CRAB TOTALS 1.0 1.0 o.o o.o o.o NO. COLL. 1.0 1.0 1.0 N/T 1.0 1.0 0.0 N/T PEA 10 MINUTE COLLECTION. LOCATIO'i JAN IUT SSC CRAB TOTALS o.o NO. COLL. N/T NIT PER 10 Ml NUTE * *

  • TABLE 3.1.5-17 MONTHLY MEAN NUMBER OF BLUE CRAB, CALLINECTES SAPIDUS1 TAKEN AT NIGHT BY 4.9 METER TRAWL IN ZONE SSC, 1978. FEB MAR APH MAY NIT T NIT T N/T T NIT T o.o 1.0 o.o 1.0 6.0 1 .o o.o o.o o.o 6.0 1.0 1.0 1.0 u.o u.o 6.0 COLLECTION.
  • * * *
  • CATCH I UNIT NO. CRAB EFFORT COLL. TOHLS 0.4 7.0 3.0 3.0 7.0 0.4 JUN JUL NIT NIT T 3.0 1.0 3.0 o.o 1.0 3.0 IA SALEM CR 1978 * * * * -_J
  • w * * * *
  • LOCATION AUG SCP I< IT T NIT T NIT SSC 6.0 1.0 18.0 1.0 15.0 CR.lB TOTALS 6.0 18.0 1 5 .u NO. COLL. 1.0 1.0 NIT 6.0 18.0 15.U OCT *
  • TABLE COIH INUE D T NIT 1.0 u.o 1.0 NOV
  • T
  • OEC I U*IIT NO. NIT EFFORT COLL-6.9 7. Cl o.o 7. () 6.9 NIT NUMaER PER 10 MINUTE COLLECTION.

LOCATION JAN NICOLL COLL AU85 CRAB TOTALS 0.0 1rn. COLL. II/COLL LOCATION AUG NICOLL COLL AU&3 6.0 1.0 CR.lB TOTALS 6.0 NO. Cull. 1.0 NICOLL 6.0 TABLt 3.1.>-1ll MONTHLY MEAN NUMBER OF BLUE CRAB, CALLINECTES SAPlous. TAKEN DURING DAYLIGHT IJY 68.6 METER SEINE AT AUGUSTINE BEACil, 1978. FEB MAR APR MAY JUN NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL o.o 1.0 ll.U 1.0 o.o 1 .o 1.0 0.0 o.o o.o o.o 8.0 1.0 1.0 1.0 1 .o u.o o.o o.u s.o SEP OCT DEC CATCH I COLL-NO. NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL EC TI ON COLL. 7.0 1.0 6.0 1.0 3.9 7.0 7.0 6. () 0.0 o.o 1.0 1.0 1.0 7.0 6.0 3.9 IA SALEM *

  • TOTALS 48.0 48.0 JUL NICOLL COLL 0.0 TOT HS n .o 27.0 CR 1')7 3
  • w I-' I I-' co lJl * * *LOCATION SSC6 CRAB luTALS NO. COLL. LOCATION SSC6 CRAB T01ALS NO. tOLL.

LOCATION AUU3 CRAH TOTALS 1rn. COLL. NICOLL HN NICOLL COLL 0.0 AUG NICOLL COLL 2.0 1.0 2.0 1.0 2.0 JAN NICOLL COLL o.o

  • TABLE 3.1.5-19 MEAN NUMBER OF BLUE CRAB*

SAPIOUS, TAKEN DURING DAYLIGHT BY 68.6 METER SEINE Al SUNKEN SHlP COVE BEACH, 1978. fEB MAR APR MAY JUN NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL

  • o.o 1.0 o.o o.o o.o o.u 1.0 u.o o.o SEP OCT NOV NICOLL COLL NICOLL COLL NICOLL 23.0 1.0 o.o 1.0 2 3 .o u.o o.o 1.0 1.0 23.U o.o TABLE 3.1.5-20 1.0 o.o o.o 1.0 o.o DEC COLL NICOLL o.o 1.0 1 .o COLL o.o o.o o.o CATCH I COLL-ECTION 3.6 3.6 MONTHLY MEAN NUMBER OF BLUE CRftB, CALLINECTES SAPIDUS, TAKEN AT NIGHT BY 68.6 METER SEINE AT AUGUSTINE BEACH, 1978. FEB MAR APR MAY JUN NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL o.u 1.0 o.u 1.0 1.0 1.0 4.0 o.o o.o o.o 1.0 4.0 1.0 1.0 1.0 o.o o.o 1.0 4.0 IA * * *
  • 1.0 1.0 NO. COLL. 7.0 7.li COLL 1.0 1.0 SALEM
  • JUL NICOLL COLL o.o CRAB TOTALS 25.0 25.0 JUL NICOLL COLL o.o ": C.R 1978 * * *
  • w f-' I f-' 00 Cl\ * * * * *
  • TAULE 3.1.5-20 CONTINUED
  • *
  • LOCATIOll AU6 ScP OCT NOV DEC -----------------------------------------------------------------------------------------------------------------------------------

NICOLL COLL AUB3 3.0 1.0 CRAB TOTALS 3.0 NO. COLL. 1.0 NICOLL 3.0 NICOLL COLL IOCOLL COLL NICOLL COLL NICOLL COLL 21.0 1.0 86.0 1.0 21.a 86.D o.o o.a 1.a 1.a 21.0 86.0 TAALE .5.1.5-21 MONTHLY NUMBER Of BLUE CNAU, CALLlNtCTES SAPIOUS, TAKEN AT NIGHT BY 68.6 METtR SEINE AT COVE 9EACHo 1978. CAHH I COLL-NO. CRAB EC Tl ON COLL. TOTALS 16.4 7.0 i15.0 115.0 7.a 16.4 LOCATION JAN MAR APR MAY JUN JUL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL u.o 1.0 o.o 1.0 1.0 1.u o.o 1.u CRAB o.a o.o u.o u.o 1.0 o.a 0 " .v NO. COLL. 1.u 1.0 1.0 1.0 NICOLL o.o lJ.IJ 1.0 a.a LOCAJ!ON AUG StP OCT NOV DEC CATCrl I COLL-NO. CRA8 ll/COLL CULL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL ECTION COLL. iOHLS SSC6 a.a 1.a 5:S.O 1.0 u.o 1.u 7.7 7.0 54.0 CRAB TOTALS o.o 53.0 u.o u.o a.a si..o NO. COLL. 1.0 1.0 1.u l.a NICOLL a .o 53.0 u.a 7.7 IA SALEM CR 1970 *

  • w I-' I I-' co -..J
  • TABLE 3.1.5-22 MONTHLY MEAN NUMBER OF
CRAB, SAPIDUS, TAKEN DURING DAYLIGHT BV 3.0 AND 7.6 METER SEINE Al RIVER SEINE STATIONS, 1978.

LOCAi ION JAN .FEB MAR APR MAY JUN JUL 'NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL NICOLL COLL PH01 u.o 1.0 o.o 2.0 o.o 2.0 o.o 2.0 u.o 2.0 SGtJ2 o. u . 1.0 0.0 2.u o.u z.o o.o 2.o o.o 2.0. AIJ6j o.o 1.U u.o 2.0 o.u 2.0 1.5 2.0 o.u 1.0 u.o 1.0 o.o 2.0 0.5 2.0 o.o 2.0 o.o 2.0 Rt 14 o.o 1.u o.u 2.0 o.o 2.0 1. 5 2.0 o.o 2.0 o.u 1.0 o.o 2.0 0.0 2.0 o.o 2.0 o.o 2.0 OB5A o.o 1.u o.o 2.0 0.5 2.0 o.o 2.0 o.o 2.0 S SCC> o.o 1.0 o.u 2.0 o.o 2.0 o.o 2.0 1.0 1.0 HOP7 o.o 1.0 o.o 2.u o.o 2.0 o.o 2.0 u.o 2.0 f'\HC il o.u 1.0 u.u 2.0 o.o 2.0 o.o 2.0 o.o 2.0 CRAB TOIALS o.o o.o o.o o.o 2.0 6.0 1.0 NO. COLL. 10.0 20.0 20.0 20.0 18.0 NICOLL u.o o.o 0.1 0.3 0.1 LOCATION AUG SEP OCT NOV DEC CATCH I COLL-NO. CRAB NICOLL COLL NICOLL COLL NICOLL COLL . NICOLL COLL NICOLL COLL COLL. TOTALS PH01 o.o 2.0 U.5 2.U o.o 1.U o.u 2.0 o.o 1.0 0.1 17.0 1. 0 SGb2 0.5 2.0 o.o 2.U o.u 1.0 o.o 2.0 o.o 1.0 U.1 17.0 1.0 AUb3 (J. 5 2.0 5.0 2.u o.o 2.0 s.o 2.U o.o 1.0 1.4 17.0 24.0 ST3A o.s 2.0 6.5 2.0 o.o 1

  • 0 o.o 2.0 o.o 1.0 0.9 17.0 15.0 RE 11< 0.5 2.0 8.5 2.0 u.o 1.0 O.;O 2.0 o.o 1.0 1.2 17.0 21.0 Elf') u.o 2.0 2.0 o.o 1 .o o.o 2.0 a.a 1.0 0 .1 17.0 1.0 Otl5A o.o 2.0 0.5 <! .o o.o 1.0 o.o 2.0. o.o 1.0 0.1 17.0 2.0 SS Co o.o 2 .o 0.5 2.0 o.o 2.0 o.o 2.0 o.o 1.0 0.1 17.0 2.0 HOP l* o.o 2.0 o.o 2.0 o.o 1.0 o.s 2.0 o.o 1.0 0.1 17.0 1.0 MHC8 u.o 2.0 1.5 2.0 o.o 1.0 1.5 2.0 o.o 1.0 0.4 17.0 6,0 CRAB TOTALS 4.0 47.0 o.o 14.0 o.o 74.0 NO. COLL, 20.0 20.0 12.0 20.0 10.0 170.0 NICOLL 0.2 2.4 o.o 0.7 o.o 0.4 IA SALEM CR 1978 * * * * * * * * * * *
  • w * * * * * * *
  • TABLE 3.1.5-23 SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLINECTES SAPious, TAKEN DURING DAYLIGHT BY 4.9 METER TRAWL IN WEST RIVER ZONES, 1978. * * * .ilOTH JAN FEB MAR APR MAY J lHl JUL AUG SEP OCT NOV DEC OU1-0Ll5 Oun-U10 U11-ll15 OH..-020 021-u2) llin* .. 130 1131-LIH Cl 041-(J45 04n-usu 0St>-CJ6J Ont>-U/U 071*0/S U7t>**JOU 0Kl*(d5 08n*uvo 091*U>5 096*100 lt;l-105 100-110 111-115 11n*120 121*1 H 12n*15ll 131*135 1ln*140 11.1-145 Ho*l5'1 , s e.*lbu 1ol*l65 1on*1/0 171*11S 110-l!IO 1t!1-1S5 TOTAL TOTAL s 69.0 1 1 1 2 1 3 2 5 1 , 2 2 25 25 94.1 2 1 1 1 2 9 9 128.l 2 10 10 108.S 1 4 5 7 1 3 1 1 1 1 3 2 2 42 54.0 3 2 16 19 14 9 5 ' 5 4 7 9 9 5 1 4 1 3 1n 123 50.4 2 3 21 8 2 6 1 4 1 3 .3 2 ( 2 2 1 1 2 63 9 9 36,0
  • w I-' I I-' co l.D
  • 006-ll 10 (J 11-LJ 15 Olo-02il O<l-u25 ll2o-LJ .lLl U.l 1-0.15 (J.\1>-Ll!.J 0 41-ll 4 5 o*o-uso 1-055 OS1>-lJ6'.J lio1-iJ!:>5 lioc-u 7 a 011-075 u7o-U3J 081-U:lS 06t>-lJ9iJ 091-UY5 101 -1 JS 1 Uo-11 J 111-11) 11 o-12iJ 121-125 1 20-1 .Ill 1.l1-1 .15 1.56-140 141-HS 146-1 5 :J 151-I 5 5 1)6-16\J 101-165 166-170 171-175 181-1 35 100-HJ 191-195 201-lJS TOTAL MEAS. TOTAL TAKEN MEAN *
  • JAN
  • TABLE 3.1.5-24 SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLINECTES SAPIDUS, TAKEN DURING DAYLIGHT BY 4.9 METER TRAWL IN EAST AND REEDY ISLAND ZONES, 1978. FEB MAR APR MAY JUN JUL AUG SEP OCT. 1 1 4 14 2 41 4 31 4 25 4 12 2 3 9 7 10 2 14 7 4 9 '2 3 6 1 6 1 2 6 1 6 2 2 5 1 8 2 1 4 1 2 2 *1 .3 4 2 1 1 1 4 3 1 3 4 4 2 1 2 1 3 2 3 3 2 1 2 .3 1 2 1 2 3 2 1 1 1 2 3 6 20 29 1 2 74 229 6 20 29 13 74 229 48.0 47.0 82.6 130.5 1.59 .o 75.9 53.1 * * * *
  • NOV DEC 3 2 7 8 19 5 1 6 3 12 6 8 5 4 2 2 1 1 1 2 2 85 30 87 30 34.9 35.9 IA SALEM CR 1978 * * *
  • w I-' I I-' l.O 0 *
  • CARAPACE lollDTh
  • JAN * * * *
  • TABLE: 3.1.5-25 SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLlNECTtS SAPlOUS, TAKEN DURING DAYLIGHT BY 4.9 METER TRAWL 0 IN CHANNEL ZONES, 1978. FEB MAR APR MAY JUN JUL AUG .SEP OCT
  • NOV DEC Oil1-U05 CJUl>-010 011-015 ll11>-U20 021-ll25 Ml>-030 031-0'35 036-040 U41-045 046-050 ()51-055 OS1>-U6Q u61-u65 061>-U10 071-075 071>-LlfsO 081-035 CJb1>-UilO 096-10°) 1[j1-1iJ5 106-110 111-115 111>-120 121-125 1 3'1 131-135 131>-140 141-145 146-150 151-155 156-16::>

161-165 106-1 70 171-175 TOTAL MEAS. TOTAL TA(EN MEAN .. 2 1 3 1 11 11 130. 5 1 3 2 2 2 1 1 1 3 19 19 57.8 3 2 9 9 88.2 2 3 34.7 1 2 5 47.6 IA SAlfM *CR 1978

  • w I-' I I-' l.O I-' lARLE 3.1.5-26 SIZE*CLASS DISTRIBUTION OF BLUF CRAB, CALLINECTES SAPIOUS, TAKEN AT NIGHT BY 4.9 METER IN ZONE W-3, 1978.

\.ll DTH J4N FEB APR MAY JUN JUL AUG SEP OCT NOV DEC --------------0-------------------------------------------------------------------------------------------------------------------- UD1-UU5 OOo-Lll 0 1111-015 1 il1o-O20 U21-025 021,-1J5Q 1-U 35 036-U4ll 041-iJ .. 5 (J4o-U50 U51-ll55 il51>-U60 ll61-1165 Ooc-U7J O 71-tl I 5 ()71>-1130 081>-lli>J 091-U95 ll9n-1 '.lJ 1ll1-1 ll5 1 Oo-11 u 111-115 1 B-1 20 121-125 126-130 131-135 141-145 146-1 50 151-155 1s1i-1ov TOTAL MEAS. TOTAL THEN M!:AN * * * *

  • 82.0 160.0 14.0 IA SALEM CR 1978 * * * * * * *
  • w f-' I f-' N *
  • CARAPACE 1.IIDTH OIM) 001-005 OOo-010 011-Ul5 0111-020 021-025 026-030 031-035 ll36-040 041-U45 OS1-U55 llS6-U6Cl ll66-U7ll 071-075 07n-USCJ 081-USS 096-HiO 101-105 106-110 111-115 116-120 TOTAL MEAS. TOTAL fA(EN MEAN
  • JAN * * * *
  • TABLE 3.1.5-27 SIZE-CLASS DISTRIBUTION OF BLUE CRAB. CALLINECTES SAPtous, TAKEN AT NIGHT BY 4.9 METER TRAWL IN ZONE SSC, 1978. FEB MAR APR MAY JUN JUL AUG SEP OCT 4 3 "" 6 3 6 6 3 6 50.5 94.7 26.5 3 3 3 1 3 1 3 1 18 18 30.9 4 2 2 1 1 2 1 5 1 5 61. 7 * * *
  • NOV DEC IA SALEM CR 1978
  • w I-' I I-' \,0 w WIDTH 001-0QS OD<>-U 10 011-015 01 o-1)20 021-U25 031-03, 041-U45 OS1-U55 05fJ-lJ6J llo1-0o5 066-ultJ 071-075 0 71>-05;)

lJ91-u;JS 096-100 101-105 106-110 TOTAL MEAS. TOTAL TAKEN HEAN *

  • JAN
  • TA11LE 3.1.5-28 SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLINECTES SAPIOUS, TAKEN DURING DAYLIGHT BY 68.6 METER SEINE AT AUGUSTINE BEACH, 1978. FEB MAR APU MAY * * ,I UN 2 1 2 8 8 76.0 *
  • JUL ** AUG 1 2 2 6 6 31.2 SEP 1 2 1 . 7 7 67 .o.
  • OCT 1 2 2 6 6 33.5 PoJOV DEC IA SALEM CR 1978 * * * *
  • w * * * * * * * *
  • TABLE 3.1.5-29 SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLINECTES SAPIDUS, TAKEN DURING DAYLIGHT BV 68.6 METER SE:INE AT SUNKEN SHIP COVE BEACH, 1978. * * (Ai<APACE wIOTH 001-005 0011-010 011-015 011>-020 021-025 02<'>-030 0:)1-035 036-040 041-045 046*050 061-065 061>-U 70 071-075 076-030 086-090 U"1l*U95 096-1'10 101-1ll5 106-110 111-115 116-120 121-125 121>*13D 131-135 136-140 141-145 TOTAL ME:AS. TOTAL TAKEN MEAN JAN HS MAR APR MAY JUN JUL AUG 2 2 124.5 SEP 1 4 3 2 3 3 1 2 2 2.5 23 35.7 OCT NOV DEC IA SALEM CR 1978
  • w . f-J I f-J \.0 lJ1
  • CARAPACE WIDTH 001-DJS Olln-01 () n11-u1 s 01o-u20 021-u2s n20-c1rn ll \ 1-03 5 (l.So-U40 041-045 ()4o-Li 50 0;1-l'SS 0'>6-U68 1-\165 Oo<'>-070 071-ll75 071>-0ilD 081-ll35 il&t>-090 Oil 1-Cl;>S 096-1 J:J 1 (11-1\.)5 TOTAL MEAS. TOTAL TAKEN MEA" *
  • JAN --------------------.
  • TABLE 3.1.5-3n SIZE-CLASS DISTRIBUTION OF BLUE CRAB, CALLJNECTES
SAPIDUS, AT NIGHT 81 68.6 METER SEINE AT AUGUSTINE BEACH, 1978. FEB MAR APR MAY JUN JUL AUG SEP OCT -------4 3 -------4 10 -------1 27 -------1 12 --------20 ------2 -----1 ------1 -------1 -------1 2 -------1 2 ---1 ---1 1 -------2 -------1 ----1 --1 -------1 ----1 ----2 ---1 4 -3 20 86 ---1 4 -3 21 86 ---67.0 95.5 -38.3 43.5 28.8 * * * *
  • NOV DEC IA SALEM CR 1978 * * * *
  • w I-' I I-' \D O"\ *
  • CARAPACE wIDrn 001-005 006-(J1 iJ 011-015 oi1i-u20 021-025 026-030 056-U4Q 041-045 041>-llSll (J51-055 U5o*060 061-lJbS Oob-070 ll71-U75 076-080 081>-u90 091-095 096-100 TOTAL r1E AS. TOTAL TAKEN MEAN
  • JAN -------------------
  • * * * *
  • TABLE 3.1.5-31 SlZE*CLASS DISTRIBUTION Of BLUE CRAB, CALLINECTES SAPIDUS, TAKEN AT NIGHT BY 68.6 SElNE AT SUNKEN SHIP COVE BEACH, 1978. FEB MAR APR MAY JUN JUL AUG SEP OCT 2 3 5 6 4 1 1 1 4 1 4 1 1 ._ 35 53 33.0 39.5 * *
  • NOV DEC IA SALEM CR 19 78
  • w I-' I I-' \.0 -..J
.;JDTH (J01-lJ
J5 OOn-lJ10 u 11-ll 15 lllti-020 021-U25 026-0 SCI 0;1-055 05o-04D 041-U45 041>-IJ)Q 051-USS OSo-060 061-U65 Obl>-07U 071-075 () ll\-ll 8:J 081-035 086-lJ9lJ 091-0;>S 096-100 TOTAL MEAS. TOTAL l-IEAN *
  • JAN
  • TABLE 3.1.5-32 SIZE-CLASS DISTRIBUTION OF BLllE CRAB, CALLINECTES SAPIDUS1 TAKEN DURING DAYLIGHT BY 3.0 AND 7.6 METER SEINES AT RIVER SEINE STATIONS, 1978. FEB MAR APR *
  • MAY 2 2 34.5 JUN -: 1 --2 1 6 6 57.2 JUL ------59.0 *
  • AUG 2 1 --1 --4 4 28.3
  • SEP OCT 6 14 10 2 ---1 1 -3 1 1 1 47 47 17.5
  • NOV 4 2 5 1 14 14 21.4 DEC IA SALEM CR 1978 * * *
  • * * * * * * * * * ** * , I I i St. Goor9cs Creek (STJA) Auqus tine Oeach (AUOJ) River PUlJLIC SEIWJCE J::LEC."1'RIC AND GAS COMPANY SALEM NUCLl*:,rn GENERATING STATION 3.1-198 Mii<> s 0 2 I I ! 0 2 3 l{ilr""!')ri

.. ... :., ": ,. """1'r.:iwl Zonefi + Seine Stations SE3 ./ ' / ,, / ,, / , / ',, / ,, / ,, / / ,, / ,, SE2 / / ,, / ,, / Sill ,, ' / r_,.., / , ,, ,, , .. ,, .... '\ ... SEl ,, , ' SEO '\\ / '. .,. ','..,/ trawl and seine locations-197E Figure 3.1.5-1

.. each ; l'UJJ!.IC . 1 ** i.:u:crnrc . s \l

  • AND (' /\ C* * , .u.1 ;-.:ucu:,\H c . , . , " cm1P.\NY ,LNl.l\ATIN
    • . . G STATION s X p..\.\.OWAY Arlilicio MILES I.land 0 2 t=:r' I Pfi' 4 20 2'4*1 rt*'14 <UOM<OTERS 6 BAY rawl locat .. ions-1978 ure 3.1.5-2 * * * * * * * * * ** ** j
  • * * * * * * * * **
  • Augu1tin*

Beach Creek PUDLIC J::r.ECTRIC AND CAS COMPANY SALEM NUCLEAR GENERATING STATION 3 .* 1-200 ) N MILES 0 2 4 f&;r' ,my i -411 KILOMETERS seine locations-1978 Figure 3.1.5-3

  • *
  • 5
  • 4
  • r-1 ro 3
  • H E-t "'-... Legend H (!) 0 Combined West Zones *-* ...... Combined East ;::1 b. Zones ------------------

Q z ro (J)

  • 1
  • J F M A M J J A s 0 N D J
  • I a 1 bunaa 1 n 1 ce ?f bl 1 ue 9 crab in PUDLlC SE:HVICE J::LECTRIC Al':D GAS river traw CO ect1ons-78 SALE!.! NUCLL\H GI::NEHAT!NG S'J'i\'l'ION
    • Figure 3.1.5-4 3.1-201 *
  • * * .... Jr-<j 1-t * !-< ....... i:: .. <\) 0 *a ::s i::I West Zones i::I <1 ti
  • e ';j 1 ::s § -<
  • NYlZ NWl W3 W2 Wl SWZ S'\'ll * .... jl: d h E-< "' 2
  • h 0 ::s i::I East Zones i::I d Cl) a
  • Oj 1 ::s J:l i::I -< * ** Spatial distribution of blue crab PUDLIC SE:lff!CE J::LEC:TR!C AND GAS in river trawl collections-1978 S,\LEM NUCI.t:.\H Gt::NF.RATING S'l'A'!'!ON Figure 3.1.5-5 3.1-202 *

>-u z ... ::> " ... °' ... WEST EAST 1:] .. --.-.. ...... ..... ..-..---... A..,P,..R-. Fl i I I i i FTl Frl Fl I ;' I ... U .... ,N ... , ' ...... ...... ... , 60 70 60 so 40 30 20 10 0 60 so 40 30 20 10 0 () 0 10 40 oo JUL Fl I ; i I I SEP F"i'='7"l I OCT NOV ore I t D I i I

  • I £ U i & l T 60 100 120 140 160 lUO 200 CARAPACE

...... ...... -.--r-...... ...... : ... ... l .. . AUG SEP 80 OCT 70 60 so 40 30 20 10 ..... ...,...,...-.-..-.,-.-...,-,,.....,-.j.....,....,.....,.. .. 60 50 40 30 ']D 0 10 40 WIDTH (rnm) j 60 NOV DEC l I Fl I I ' l Fi l Ii i : I 60 100 l"JO 140 IC>O WO 100 220 r. l PUJJLIC SE!ff!CE l::I.CCTHIC AND Gi\S *seasonal size distrioution standardized for effort of blue in river trawl collections-1978 crab f, S,\LEJ.! GENERi\TING Figure 3.1.5-6 3.1-203 -----------* * * * * * * * * * ** *

  • * * * * * .* * * **
  • 3.l.6a Juvenile And Adult Fishes -River (ETS Section 3.1.2.l.lg)

The fishes of the Delaware River near Artificial Island were sampled in 1978 by seine, trawl; and gill net within the area illustrated in Figure 3.l.6a-l. Objectives of the daylight seine and trawl programs were to determine

1) species composition, 2) spatial and temporal distribution, and 3) relative abundance of fishes. The objective of the night seine and trawl program was to identify diel differences in species abundance.

The objective of the gill net program was to determine the period of occurrence and distribution of alosids during migratory movements through the study area

  • 3.l.6a.l Summary Some 111 species of 51 families have been taken from the study area and contiguous regions since the study began in mid 1968 (Table 3.l.6a-l).

In 1978, 148,538 specimens of 54 species of 31 families were taken in combined daylight seine, trawl, and gill net collections. All but the rainbow trout and harvest fish had been collected in previous years. The catch included freshwater, estuarine, and marine species which utilized the region primarily as a nursery or feeding area. Weakfish (49,615 specimens), bay anchovy (36,861), hogchoker (33,919), white perch (2,909), spot (l,067), Atlantic croaker (994), American eel (814), and blueback herring (594) were most abundant in the trawl catch and comprised nearly ninety-nine percent of the annual catch. Atlantic silverside (5,022), bay anchovy (4,400), Atlantic menhaden (658), and mummichog (484) were the most abundant species taken by seine and comprised about ninety percent of the annual catch. Atlantic menhaden (6,776), blueback herring (l,478), alewife (370), bluefish (121), and American shad (30) comprised nearly ninety-nine percent of the gill net catch. Catch composition correlated strongly with seasonal variations in salinity and water temperature. Fewest species and specimens were taken in March, a period of low water temperature and salinity. The catch in deeper waters comprised primarily white perch. No fish were taken in abundance in the shore zone. Species variety and specimen counts increased during April through June, a period of rising water temperature and salinity. Many summer residents including bay anchovy, 3.1-204 Atlantic menhaden, bluefish, and summer flounder were taken during this period. Juvenile weakfish appeared in very large numbers in late June. Adult alosids (American shad, blueback herring, alewife) were taken during pre-spawning migrations. Bay anchovy, hogchoker, and white perch were predominant in the trawl catch during April and May. Weakfish replaced white perch as one of the predominant species in June. In the shore zone bay anchovy, Atlantic menhaden, Atlantic silverside, and mummichog were most abundant. Species number and abundance remained high through September as the summer ichthyofaunal community became established. Several marine strays including inshore lizardfish, Atlantic needlef ish, and harvestf ish appeared in the catch during this period. Weakfish, bay anchovy, and hogchoker were predominant in the offshore catch; in the shore zone, Atlantic silverside and bay anchovy were predominant. As temperature declined during October through December, summer residents began emigration from the study area and were gradually replaced by winter species. Juvenile herrings and American shad were taken as they migrated through the region from upriver nursery areas. Weakfish numbers dropped drastically during this period. However, bay anchovy and hogchoker continued to be taken in large numbers offshore during October and November. In the shore zone only Atlantic silverside was abundant. By December only hogchoker and white perch were taken in abundance offshore. No fish were taken in abundance in the shore zone during this period. 3.l.6a.2 Seine Seines were hauled during daylight to determine species composition and the spatial and temporal distribution of fishes in the shore zone. Night collections were also made to identify diel differences in species abundance. MATERIALS AND METHODS Field All seine samples required under this ETS were collected. Biweekly seine collections were taken during daylight at ten stations from March 17 through December 12 (Table 3.l.6a-2, 3.1-205 * * * * * *. * * * ** *

  • * * * * * * * * * **
  • Fig. 3.l.6a-l).

Inclement weather and river icing precluded sampling during January, February, early March, and late December. Corresponding night and day collections were taken monthly from March through October except during July, at stations SSC6 and AUB3. Collections were taken about 12 hr apart on two consecutive days. Two types of seine were employed: a 7.6-m x 1.2-m (25.0-x 4.0-ft) bag seine with 6.4-mm (1/4-in) stretch mesh and a 3.0-m x 1.2-m (10.0-x 4.0-ft) flat seine with 3.2-mm (1/8-in) stretch mesh. Gear deployment, sample processing, and collection of physicochemical data were as in 1977; for a complete description see the 1977 Annual Environmental Operating Report. Data Reduction Data are discussed on the following statistics: s = species variety, n = number of specimens, and n/coll = number of specimens per collection. To show the temporal abundance of the more abundant species, catch data (n/coll) were transformed by the log (x + 1) and the mean plus and minus one standard deviation and the range for each month were plotted. To show the spatial distribution of these species the above listed parameters plus the 95 percent confidence interval of the mean were calculated and plotted for each station for spring (March 16 through June 15), summer (June 16 through September 15), and fall (September 16 through December 15). Catch composition between combined east and west stations was compared using Spearman's coefficient of rank correlation. Principal components analysis (BMDP4M Factor Analysis; Dixon, 1975) was used to calculate and display similarities in the catch composition among. stations. This method is described by Marriott (1974) and Pielou (1977). The 13 more abundant species were included as variables and stations as observations. A species by species (R-rnode) product moment correlation matrix was calculated from log (x + 1) transformed catch The factor scores for each station along only the first three component axes were plotted. 3.1-206 i--RESULTS Temporal Catch Composition A total of 11,661 specimens of 31 species were taken in 170 seine collections (Table 3.l.6a-3). Atlantic silverside (n = 5,022), bay anchovy (4,400), Atlantic menhaden (658), and mummichog (484) were most abundant and comprised 90.1 percent of the total catch. Seasonal catch patterns were evident. March and April were characterized by low species variety (s = 3 and 5) and abundance (n/coll = 1.8 and 3.3). Mummichog and Atlantic silverside were predominant (85.7 percent of the catch). Species variety and abundance increased through June (s = 16; n/coll = 164.7).as large numbers of adult bay anchovy and young Atlantic menhaden, along with several less abundant summer residents, including spot, weakfish, and hogchoker moved into the study area. Atlantic silverside and mummichog were also taken in abundance. During July through September species variety (monthly s = 16-17) and abundance (monthly n/coll = 72.6-159.0) remained high. Several marine strays including inshore lizardfish, and Atlantic needlefish were taken during the period. The catch was predominated by young of the Atlantic silverside and bay anchovy. In October species variety (3 = 8) decreased as the marine strays and several summer residents emigrated from the area. However, the catch remained high (n/coll = 74.1) because of the abundance of Atlantic silverside (n/coll = 63.2). Species variety increased in November (s = 12) but decreased in December (4) as lingering estuarine species migrated downbay. Abundance decreased in both months (n/coll = 12.8 and 4.3, respectively). Spatial Catch Composition The annual n/coll was 85.6 for east stations and 51.6 for west stations. The five west stations yielded 29 species; the five east stations yielded 18. Sixteen species were common to east and west stations. Spearman 1 s rank correlation coefficient (r = .798, p < 0.0001} indicates a high degree of correlation 5 between the-catches of the two groups. Between-station similarity based on catch compos1t1on was plotted along the first three component axes in Figure 3.l.6a-2. These components explain 71.l percent of the total variance (Factor I = 30.9 percent; Factor II = 25.2; Factor III= 15.0). 3.1-207 * * * * * * * * * *

  • r--* * * * * * * * *
  • Two groups of stations can be identified.

One closely associated group is SSC6, HOP7, .and MHCB. These stations are located on the east shore south of Salem and may experience similar physicochemical conditions. A second group, less closely associated, consists of the five stations on the west side of the river plus Station ELPS. Station OBSA is not closely associated with any other station and is most distant from the first group both on the figure and geographically. The general north-south trend along axis I suggests that a factor such as salinity has a strong influence on catch composition. Species Accounts The following discussion traces the abundance and distribution of the four more abundant species. They are presented in order of decreasing abundance and based on summary data in Table 3.l.6a-3 and Figures 3.l.6a-3 through 17. Additional data have been included which are not presented in tables but are contained in the PSE&G aquatic data base. 1. Atlantic silverside (n = 5,022, young and adult) comprised 43.l percent of the total catch (Table 3.l.6a-3) . Length range was 12-120 mm. It collected from March December (Fig. 3.l.6a-3). During spring Atlantic silverside was collected in low numbers at all four stations south of Salem but was most abundant at HOP7 (Fig. 3.l.6a-4). It was taken at only two of six statons north of Salem. Most captures were adult. Abundance increased through July as age 0+ fish were recruited into the catch. After June the catch was almost entirely age 0+. The catch declined in August but increased in September. Abundance during summer was greater than during spring at all stations. There was a general increase in abundance from north to south but the catch was greatest at MHC8 and AUB3 (Fig. 3.l.6a-5). The species remained abundant through October but the catch declined sharply in November and remained low in December (Fig. 3.l.6a-3). The catch during fall was less than during summer at all stations. The greatest abundance during fall was at SSC6 (Fig. 3.l.6a-6)

  • Atlantic silverside comprised 85.3 percent of the catch in October; from May through September it comprised 24.2 to 59.7 percent of the monthly catch. It was collected at all stations but the catch was greatest at MHC8 (n = 1,302) where 25.9 percent of the annual catch 3.1-208 was taken (Table 3.l.6a-3).

The annual n/coll was 33.8 for east stations and 25.2 for west stations. The n/coll for night collections was 20.3; for comparable day collections it was 53.1. 2. Bay anchovy (n = 4,400, young and adult) comprised 37.7 percent of the total catch (Table 3.l.6a-3). Length range was 16-91 mm. It was collected from May through November (Fig. 3.l.6a-7). During spring bay anchovy was taken at eight stations and in low numbers (Fig. 3.l.6a-8). All were age l+ or older. Abundance during summer was greater than during spring at all stations as age 0+ fish were recruited into the catch (Fig. 3.l.6a-9). When abundance peaked in July they predominated the catch. Abundance decreased in August but increased to July levels in September (Fig. 3.l.6a-7). Station OB5A had the greatest catch during the period. During fall abundance decreased steadily. Bay anchovy was taken at all stations except SSC6 but abundance at each station was less than during summer (Fig. 3.l.6a-10). Greatest abundance was at ST3A. Bay anchovy comprised 64.8, 62.2, and 47.3 percent of the catch in May, September, and August, respectively. During other months the percentage ranged from 13.6 to 32.0. It collected at all stations but the catch was greatest at Station OB5A (n = 1,146) where 26.0 percent of the annual catch was taken (Table 3.l.6a-3). The annual n/coll was 35.4 for east stations and 16.3 for west stations. The n/coll for night collections was 14.0; for comparable day collections it was 13.4. 3. Atlantic menhaden (n = 658, age 0+ and l+ young) comprised 5.6 percent of the total catch (Table 3.l.6a-3). Length range was 22-160 mm. It was collected from May through September (Fig. 3.l.6a-ll). During spring it was taken at eight stations and in low numbers. During this period there was a slight increase in abundance from north to south (Fig. 3.l.6a-12). The catch (predominantly age 0+) peaked in June and declined in July and August. During summer Atlantic menhaden was taken at all stations (Fig. 3.l.6a-13). Abundance was greater than during spring at seven stations. It was no longer most abundant at southern stations; it was most abundant at OB5A and AUB3. Only one specimen was taken during fall. Atlantic menhaden comprised 17.1 percent of the July catch. During other months it comprised less than 3.1 percent. 3.1-209 * * * * * * * * * * *

  • * ** * *
  • I 1. * * *
  • It was taken at all stations but the catch was greatest at OB5A (n = 207) where 31.5 percent of annual catch was taken (Table 3.l.6a-3).

The annual n/coll was 5.8 for east stations and 1.9 for west stations. On June 19-20, 146 specimens were taken in two night collections while 49 were taken in two day collections. None were taken in other night collections.

4. Mummichog (n = 484, young and adult) comprised 4.2 percent of the total catch. Length range was 22-111 mm. It was taken from March through September and in November and December (Fig. 3.l.6a-14).

The catch was low from March through May but peaked in June. Abundance subsequently decreased through September. During spring murnrnichog were taken at all stations except HOP7 (Fig. 3.l.6a-15). It was most abundant at ST3A and AUB3. During summer it was taken at the same stations and at about the same abundance as during spring (Fig. 3.l.6a-16). Abundance during fall was less than during summer at eight stations. None were taken in October and few were taken in November (n/coll = 0.6) and December ("0.5). It was most abundant at P1.UB3 (Fig. 3.l.6a-17). None were taken at HOP7, OBSA, or SGB2. Mummichog comprised 88.9 and 40.9 percent of the monthly catch in March and April, respectively. During other months it comprised from 1.1 to 11.6 percent of the monthly catch

  • It was taken at all stations except HOP7. The catch was greatest at ST3A (n = 158) where 32.6 percent of the annual catch was taken (Table 3.l.6a-3).

The annual n/coll was 4.7 for west stations and 1.0 for east stations. The n/coll for night collections was 8.1; for comparable day collections it was 5.6. Preoperational Comparison Annual rank and percent of catch of the four more abundant species in 1978 were within or above the range for the preoperational period 1970 through 1976 (Table 3.l.6a-4). Annual abundance (n/coll) for three of the species equaled or exceeded the abundance in 1975 or 1976 (Table 3.l.6a-5)

  • The Atlantic menhaden was less abundant in 1978 than in 1975 or 1976. Other species that were less abundant include the tidewater silverside and bluefish.

The weakfish was more abundant

  • 3.1-210 3.l.6a.3 TRAWL Trawling during daylight was conducted to determine
1) species composition, 2) relative abundance, and 3) spatial and temporal distribution of the fishes which frequent the deeper waters of the river. In addition night trawling was conducted to identify diel differences in species abundance.

MATERIALS AND METHODS Field All trawl samples required under this ETS were collected. Biweekly bottom trawl samples were taken during daylight from March 13 through December 18 in 19 of 22 river zones and 5 channel zones (Table 3.l.6a-6, Fig. 3.l.6a-l). Zones NE2, Ril, and RI2 were sampled biweekly to monthly. Inclement weather and river icing precluded sampling in January, February, early March, and late December. Corresponding night and daylight cpllections were taken monthly from March through October except for July at zones W-3 and SSC. Collections were taken about 12 hr apart on two consecutive days. A standard river collection was a 10-min tow (Simin in Zone SSC) of a 4.9-m (16-ft) semiballoon otter trawl

  • A standard channel collection was a 20-min tow. Night collections were of 5-rnin duration.

Sample processing and collection of physicochemical data were as in 1977; for a complete description see the 1977 Annual Environmental Operating Report. Data Reduction -Data are discussed on the following statistics: s = species variety, n = number of specimens, T = number of standard hauls, T* = number of hauls in which a species appeared, n/T = number of specimens per 10 min of sampling time, and n/T* = number of specimens per haul (10-min effort) in which a species was taken. Monthly mean and standard deviation were calculated from log {x + l} transformed catch per effort values of pooled semimonthly collections. Seasonal mean, standard deviation, i=3.B-cm stretched mesh ti o. 9 thread body, 3.2-cm stretched mesh No. 15 cod end, innterliner of 1.3-:::m No. 63 knotless nylon netting inserted and hogtied in cod end. 3.1-211 * * * * * * * * * * ** *

  • * * * * * * * * *
  • and 95 percent confidence interval were calculated from log (x + 1) transformed regional catch per effort values for spring (March 16 through June 15), summer (June 16 through September 15), and (September 16 through December 15). Regions were defined as follows: the northwest region contained zones NWl and NW2; the central-west region contained zones W-1, W-2, and W-3; the southwest region contained zones SWl and SW2; the north channel region contained zones CHA3, CHA4, and CHAS; the south channel region contained zones CHAl and CHA2; the northeast region contained zones NEl, NE2, and E-6; the central-east region contained zones E-1, E-2, E-3, E-4, E-5, Ril, and RI2; the southeast region contained zones SEO, SEl, SE2, and SE3. Catch composition among the combined west, east, and channel zones was compared using Spearman's coefficient of rank correlation.

Figure 3.l.6a-l depicts the zones east and west of the shipping channel as well as those within the channel. Zones Rll and RI2, although west of the channel, were grouped with east zones . Principal components analysis (BMPD4M Factor Analysis: Dixon, 1975) was used to calculate and display similarities in the catch composition among zones. This method is described by Marriott (1974) and Pielou (1977). The thirteen most abundant species were included as variables and zones as observations. A species by species (R-mode) product moment correlation matrix was calculated from log (x + 1) transformed catch data. The. factor scores for each zone along only the first three component axes were plotted . RESULTS Temporal Catch Commposition A total of 128,093 specimens of 45 species were taken in 848 trawl collections from west, east, and channel zones (Table 3.l.6a-7). Weakfish (n = 49,615), bay anchovy (36,861), hogchoker (33,919), white perch (2,909), spot (l,067), Atlantic croaker (884), American eel (814), and blueback herring (594) were most abundant and comprised nearly nine percent of the total annual catch. As in previous years, strong seasonal patterns in catch were evident. Species variety (s = 5) and fish abundance (n/T = 2.7) were lowest in March. Although not abundant, white perch comprised most of the catch. Both catch statistics increased through May (s = 20; n/T = 68.7). Many summer residents, including bay anchovy, Atlantic menhaden, bluefish, and summer appeared in the catch during this period as did yearling shad and herrings. Bay anchovy, hogchoker, and white perch were predominant. These three 3.1-212 species, along with blueback herring, were taken most often. Species variety remained high (monthly s > 20) through August as the summer ichthyofaunal community became established. Catch per effort peaked during summer, with June and July n/T values of 266.6 and 265.2, respectively. Juvenile weakfish appeared in very large numbers during this period and along with bay anchovy and hogchoker comprised more than ninety-eight percent of the summer catch. The preceding three species, along with American eel, spot, and Atlantic menhaden, were taken most often. The number of species taken increased during fall (monthly s > 26) as summer species were gradually replaced by winter species. However, relative abundance declined (monthly n/T < 164.0), largely because of the emigration of weakfish. Bay anchovy and hogchoker again were the most abundant species taken, although spot, American eel, Atlantic croaker, white perch, and blueback herring appeared in moderate numbers. These seven species, along with black drum, were taken most often. During December, only hogchoker and white perch were taken in abundance as catch continued to decline (n/T = 84.7). Spatial Catch Composition Spearman's coefficient of rank correlation based on annual species catch per effort data among combined west, east, and channel zones were significant. The strongest correlation (r = .810, p < 0.0001) exists between the channel and east gr5ups. This Ts probably explained by the similarity of water depth in these areas as well as common circulation and tidal patterns along the channel and eastern portion of the study area. The weakest correlation (r = .637, p < 0.0001) s -occurs between the channel and west groups. Principal components analysis of annual species catch per effort data by zone revealed similar results (Fig. 3.l.6a-18). The first three component axes explain 64.1 percent of the total variance (Factor I = 32.2 percent; Factor II = 19.4; Factor III = 12.5. Three major groups are indicated in this analysis. The five channel zones, two Reedy Island zones, and Zone SEO form one group. The central and southern east zones are grouped together along with zones E-6, NWl, and SW2. The third group includes most west zones as well as zones NEl and NE2. Zones SSC, W-3, and E-5 appear as unique areas. The position of the major groups indicates degree of similarity; the channel and east groups being most proximate thus most similar, and conversely, the west and channel groups being furthest apart and least similar. 3.1-213 * * * * * * * * * * * *

  • * * * * * * ** * * * **
  • Species Accounts The eight most abundant species, each represented by more than 500 specimens, are discussed in order of decreasing abundance.

The following accounts of these are based primarily on annual summary data presented in Table 3.l.6a-7, and monthly and seasonal data presented in Figures 3.l.6a-19 through 45. Additional data have been included that are not presented in tabular form but are contained in .the PSE&G aquatic data base. 1. Weakfish 1 (n = 49,615, almost all age 0+ young) comprised 38.7 percent of the total catch. Catch frequency was 426 (of 848). The annual n/T was 54.l; the n/T* was 106.6 (Table 3.l.6a-7). Length range was 12-756 mm. The abundance of age O+ weakfish in 1978 was of unprecedented magnitude. In fact, the catch in the last two weeks of June was greater than the combined annual catches from 1973 through 1977. It was taken from June through November (Fig. 3.l.6a-19). Although a few were taken earlier, peak abundance occurred during the last two weeks of June as young-of-year fish immigrated into the study area from down bay spawning grounds. Catches in the central and southern zones were greater than in the northern zones. Abundance remained high during the summer and as the season progressed weakfish became more uniformly distributed (Figs. 3.l.6a-19 and 20). The catch of weakfish decreased sharply in September and continued to decline through November, as these fish began their annual migration out of the estuary (Fig. 3.l.6a-19). Although catch levels during fall were lower in all regions from those of summer, relative abundance among regions remained uniform (Fig. 3.l.6a-21). Weakfish comprised 79.8, 61.2, and 35.7 percent of the catch in June, July, and August, respectively. It was taken in all zones but was most abundant, based on annual n/T values, in zones RI2, W-3, Ril, and CHA4. It was least abundant in zones E-6 and SE3 (Table 3.l.6a-7). The annual n/T* value west of the shipping channel was 111.3; to the east it was 106.5. The n/T for night collections was 27.6; for comparable day collections it was 74.4

  • 2. Bay anchovy (n = 36,861, young and adult) comprised 28.8 percent of the total catch. Catch frequency was 560. The annual n/T was 40.2; the n/T* was 60.7 (Table 3.l.6a-7).

Length range was 12-105 mm. It was taken from April through December (Fig. 3.l.6a-22)

  • Large numbers were first taken in May as the upbay migration of adult fish into the area heightened.

Although it was taken throughout the study area during spring, abundance increased from north to south (Fig. 3.l.6a-23). Catch l of weakfish is based only on samples taken under ETS. Additional information can found in 11 Summary Assessment of Weakfish Impingement: Summer 1978, (PSE&G 1978b) 3.1-214 decreased in June as fish moved downbay to spawn but increased in July as these fish returned and young-of-year began to appear in the catch. The catch of bay anchovy declined slightly in August (Fig. 3.l.6a-22). Although it was taken in all regions during summer the greatest catch occurred in the central-west region, the lowest was in the channel regions (Fig. 3.l.6a-24). Catch was greater than spring levels in the three east regions and the central-west and northwest-regions. Catch increased through November as young-of-year fish continued to be recruited into the local population and adults seeking warmer waters moved downriver into this area (Fig. 3.l.6a-22). Catch dropped sharply in December as these fish continued their movements to more suitable environs downbay. The distribution during fall was similar to that of summer although the catch was greater in all but the central-west and southwest regions (Fig. 3.l.6a-25). Bay anchovy comprised 82.4 percent of the catch in May and from 24.7 to 51.2 percent of the monthly catch from July through November. It was taken in all zones but was most abundant, based on annual n/T values, in zones SSC, W-2, E-1, and W-3. It was least abundant in zones E-3, RI-2, E-4, and in the channel zones (Table 3.l.6a-7). The annual n/T* value west of the channel was 90.3; to the east it was 66.4. The n/T for night collections was 10.4; for comparable day collections it was 109.0. 3. Hogchoker (n = 33,919, young and adult) comprised 26.5 percent of the total catch. Catch frequency was 584, the greatest of all species. The annual n/T was 37.0; the n/T* was 55.4 (Table 3.l.6a-7). Length range was 22-192 mm. It was taken from March through December (Fig. 3.l.6a-26). Few were taken in March. Catch increased through May as yearlings and subsequently, older fish immigrated into the study area from wintering grounds downbay. During spring it was taken in all regions. Catch levels were similar in regions of abundance but were very low in the channel regions (Fig. 3.l.6a-27). The abundance of hogchoker continued to increase through August (Fig. 3.l.6a-26). This was evidenced by the greater catch in all regions during summer. The distribution was similar to that of spring. (Fig. 3.l.6a-28). The catch during this period was predominated by yearlings. Abundance remained high through October as young-of-year fish began to appear in the catch. However, it dropped in November and continued to decline in December, as larger fish and then smaller specimens migrated downbay (Fig. 3.l.6a-26). It continued to be taken in all regions during fall. Abundance was greatest in the two central regions and the northeast region. Catch was lower than summer levels in three regions, most notably in the southwest region. It was greater than summer levels in the northwest, central-west, and central-east regions. 3.1-215 * * * * * * ** * * * ** *

  • * * * * * * * * * **
  • Hogchoker comprised 60.5 percent of the catch in December and from 32.6 to 51.0 percent of the monthly catch from August through November . It was taken in all zones but was most abundant, based on annual n/T values, in zones W-3, E-5, W-1, SWl, and E-6. It was least abundant in RI2, Ril, and in the channel zones (Table 3.l.6a-7}.

The annual n/T* value west of the channel was 73.5; to the east it was 57.l. The n/T for night collections was 86.8, for comparable day collections it was 37.5. 4. White perch (n = 2,909, young and adult) comprised 2.3 percent of the total catch. Catch frequency was 273. The annual n/T was 3.2; the n/T* was 10.3 {Table 3.l.6a-7)

  • Length range was 32-287 mm. It was taken from March through December (Fig. 3.l.6a-30).

Catch was moderate in March and increased in April as yearlings and then older fish were taken. However, catch declined in May as many of these fish migrated upriver or into local tributaries. Although it was taken in all regions during spring, it was most abundant in the northeast, central-west, and southwest regions (Fig. 3.l.6a-31}. Catch increased slightly in June but few were taken through the remainder of summer (Fig. 3.l.6a-30). During summer it was taken in abundance only in the northwest and northeast regions and was absent from the catch in the south channel and southeast regions (Fig. 3.l.6a-32). It was again common in October and November. Abundance peaked in December as fish of several age groups were taken as they migrated through the study area enroute to wintering grounds downbay (Fig. 3.l.6a-30). During fall, it was taken in all regions. Catch was greatest in the central and northern regions west and east of the channel (Fig. 3.l.6a-33). White perch comprised 83.3, 45.2, and 30.2 percent of the catch in March, April, and December, respectively

  • It was taken in all zones but was most abundant, based on annual n/T values, in zones SW-1, E-5, SSC, and NE2. It was least abundant in the central and southern east zones and the channel zones (Table 3.l.6a-7).

The annual n/T* value west of the channel was 13.7; to the east it was 9.8. The n/T for night collections was 4.7, for comparable day collections it was 3.8. 5. Spot (n = 1,067, almost percent of the total catch. annual n/T was 1.2; the n/T* Length range was 22-233 mm. all age O+ young) comprised 0.8 Catch frequency was 203. The was 5.3 (Table 3.l.6a-7}. It was taken from June through December (Fig. 3.l.6a-34}. Few were taken in June. Catch increased through August as larger young-of-year immigrated into this area from downbay (Fig. 3.l.6a-34). Although it was taken in all regions during summer its abundance was greater in the 3.1-216 northern and central regions (Fig. 3.l.6a-35). Catch dropped slightly in September but increased again in October (Fig. 3.l.6a-34). This increase probably resulted from movements of spot into the study area from upriver nursery areas with the approach of winter. Abundance decreased through December larger and subsequently, smaller fish continued their downbay migration. Catch was greater than summer levels in five regions, most notably in the southwest and southeast regions (Fig. 3.l.6a-36). However, the distribution during fall was generally similar to that in summer. Spot comprised less than 2.4 percent of any monthly catch. It was taken in all zones except Ril. It was most abundant, based on annual n/T values, in zones SSC, NE2, W-2, NEl, and NW2 and least abundant among the central and southern east zones and the channel zones (Table 3.l.6a-7). The annual n/T* value west of the channel was 6.1; to the east it was 5.6. The n/T for night collections was 3.8; for comparable day collections it was 8.0. 6. Atlantic croaker (n = 884, all but one age 0+ young) comprised 0.7 percent of the total catch. Catch frequency was 100. The annual n/T was 1.0; the n/T* was 7.9 (Table 3.l.6a-7). Length range was 16-90 mm. It was taken from September through December (Fig. 3.l.6a-37). Few were taken in September. Catch increased in October, peaked in November, and decreased in December. _Croaker was well distributed among regions during this period although the catch was greatest among west regions (Fig. 3.l.6a-38). Atlantic croaker comprised 5.7 percent of the November catch but less than 2.5 percent of any other monthly catch. It was taken in all zones except E-2. It was most abundant, based on annual n/T values, in zones SW2, NW2, and Ril and least abundant among the central east zones (Table 3.l.6a-7). The annual n/T* value west of the channel was 14.9; to the east it was 3.5. The small number of Atlantic croaker taken in day-night collections precludes any comparison.

7. A..merican eel (n = 814, several age groups) comprised 0 .. 6 percent of the total catch. Catch frequency was 219. The annual n/T was 0.9i the n/T* was 3.4 (Table 3.l.6a-7).

Length range was 35-566 mm. It was taken from April through December (Fig. 3.l.6a-39). Few were taken from April through June. During this period it was taken in all regions except south channel and northeast regions (Fig. 3.l.6a-40). Numbers increased in July and August but decreased in September (Fig. 3.l.6a-39). Catch during summer was greater than spring in all regions. 3.1-217 * * * * * * * * * * ** *

  • *
  • e . -. * * ** **
  • It was taken in greatest abundance in the and northeast regions (Fig. 3.l.6a-41).

Catch decreased graclually through December (Fig. 3.l.6a-39). It was again taken in all regions during fall although catch in all but one region decreased from summer levels (-Fig. 3.l.6a-42). American eel comprised less than 1.7 percent in any monthly catch . It was taken in all zones but was most abundant, based on annual n/T values, in zones Ril, RI2, and W-1. It was least abundant in zones CHAl, CHA2, SEO, and SE3 (Table 3.l.6a-7). The annual n/T* values west of the channel was 3.1; to the east it was 4.4. The n/T for night collections was 2.8; for comparable day collections it was 0.4 . 8. Blueback herring (n = 594, mostly age 0+ and l+ young) comprised 0.5 percent of the total catch. Catch frequency was 125. The annual n/T was 0.6; the n/T* was 4.4 (Table 3.l.6a-7). Length range was 53-235 mm. It was taken from April through August and during November and December (Fig. 3.l.6a-43). Relatively large numbers were taken during April. The catch comprised exclusively age l+ specimens. Numbers decreased in May. It was taken in relatively uniform abundance in all regions during spring (Fig. 3.l.6a-44). Few were taken from June through August (Fig. 3.l.6a-43). It was again taken in abundance in November and December as age 0+ fish passed through the area from upriver nursery grounds (Fig. 3.l.6a-43). Yearlings also appeared in the catch but in low numbers. It was taken in nearly equal abundance in all regions (Fig. 3.l.6a-45). Blueback herring comprised about 17.7 of the April catch but less than 2.5 percent of any other monthly catch. It was taken in all zones but was most abundant, based on annual n/T values, in zones SSC, NEl, E-1, and E-2. It was least abundant in zones E-5, SEO, W-2, W-3, and NWl (Table 3.l.6a-7). The annual n/T* value west of the channel was 3.3; to the east it was 5.3. The n/T for night collections was 1.7; for comparable day collections it was 25.0. However, these results are biased by one large catch (125 specimens) taken during one day collection. The night catch was greater in all other day-night collections

  • Preoperational Comparison Monthly and annual trawl catch per effort values (n/T*, based on samples in which the species was taken) of weakfish, bay anchovy, hogchoker, spot, and Atlantic croaker during 1978 were within or exceeded the range recorded during the preoperational years 1970-1976 (Table 3.l.6a-8).

3.1-218 The zero catch of blueback herring in March was below the preoperational range. However, unusually low water temperature that month may have inhibited the immigration of these. fish into the ,study area. The catch of blueback herring in April was well within the preoperational range. The catch of American eel in May was below the preoperational range. However, in other months the catch was well within this range. The monthly catch of white perch in April, May, July, and November were below the respective monthly preoperational range. However, the reduced catch in 1978 appears to follow an observed decline in the local abundance of white perch since 1972. 3.l.6a.5 Gill Net Gill nets were fished in the spring and fall to monitor the period of occurrence and distribution of alosids during migratory movements through the study area. MATERIAL AND METHODS Field All samples required under this ETS were collected. Collections were taken during daylight at four zones from March 23 through November 24 (Fig. 3.l.6a-46). Monthly effort was 31.5 drift hours in March, 33.0 in April, 31.5 in May, 19.5 in June, 5.0 in September, 35.0 in October, and 16.0 in November. Samples were taken with 91.4-rn floating gill nets* constructed of nylon rnonof ilament in stretched mesh sizes of 2.5 (1 in), 3.8 (1 1/2 in), 7.9 (3 1/8 in), and 14.0 (5 1/2 in) cm. Gear deployment, sample processing, and collection of physicochemical data were as in 1977, for complete description see the 1977 Annual Environmental Operating Report. Data Reduction Data are discussed with the following statistics: n = number of specimens, n/drift hr = number of specimens per drift hour, and n/drift hr* = number of specimens per drift 3.1-219 * * * * * * * * ** *

  • * * * * * * * * * **
  • hour in which the species was taken . RESULTS A total of 8,884 specimens of 20 species were taken in 171.5 drift hours (76.5 west of the shipping channel, 95.0 in the east) (Tables 3.l.6a-9 and 10). The following accunits are of the three alosid species taken, Atlantic menhaden, and bluefish.

Together these fishes comprised 98.8 percent of the total catch. Summary catch data are presented in Tables 3.l.6a-9 through 11 . SPECIES ACCOUNTS 1. Atlantic menhaden (n = 6,776, young and adult) comprised 76o3 percent of the total catch. Length range was 67-298 mm. It was collected from April through November (Table 3.l.6a-9). The n/drift*hr* was high (Table 3.l.6a-10) and indicative of the schooling behavior of this species. Catch was greatest in May (n/drift hr= 92.5), October (72.3), and November (48.0). In the spring the catch comprised yearlings and older age groups. Length range was 96-298 mm. In the fall most fish taken were young-of-year and ranged in length from 67-150 mm. The remainder were of older age groups (length range 151-274 mm). It was taken both east and west of the channel during all months. However, in May abundance was greater east of the shipping channel (n/drift hr = 114.1 east vs. 59.8 westl. From June through November the n/drift hr was greater in the west. 2. Blueback herring (n = 1,478, young and adult) comprised 16.6 percent of the total catch. Length range was 79-315 mm

  • It was collected in all months except September (Table 3.l.6a-9).

Adults (n = 51), enroute to spawning areas, were taken from March through May, with the greatest weekly n/drift in late April (Table 3.l.6a-ll). There were 1,140 yearlings taken in the spring; most were caught in May (Table 3.l.6a-9). 3.1-220 Young-of-year (n = 287) were taken during October and November as they emigrated from nursery areas. Weekly n/drift hr during the fall was greatest during the first two weeks of November (Table 3.l.6a-ll). It was taken both east and west of the channel during all months except March. The annual n/drift hr was greater in the east (12.7) than west (3.6). 3. Alewife (n = 370, young and adult) comprised 4.2 percent of the total catch. Length range was 71-310 mm. It was collected from March through June and in October and November. The alewife was the first of the alosid species to be taken in large numbers during the spring season, indicating its relatively early spawning habit. Adults (n = 300), enroute to spawning areas, were taken from March through mid-May. Weekly n/drift hr during the spring was greatest from late March through mid-April (Table 3.l.6a-ll). Five yearlings were taken in the spring. Young-of-year (n = 65), emigrating from nursery areas, were taken during October and November. During this period weekly n/drift hr was greatest from mid-October through November (Table 3.l.6a-ll).

  • * * *
  • It was taken east and west of the channel in all months. e The n/drift hr was greater in the west during March, April, and October but greater in the east during June and November.
4. Bluefish (n = 121, young and adult) comprised 1.4 percent of the total catch. Length range was 86-544 mm. It was collected from May through November (Table 3.l.6a-9).

Catch was greatest during June (n/drift hr= 1.3), September (5.4), and October (1.7). Older fish comprised most of the catch in May and June. Length range was 350-466 mm. The remainder were yearlings. From September through November young-of-year (length range 90-200 mm) predominated the catch. The species was taken east and west of the channel during all months. The n/drift hr was greater in the west during May, September, and October. It was greater in the east during June and November.

5. American shad (n = 30, young and adult), comprised 0.3 percent of the total catch. Length range was 110-505 mm. rt was collected from March June and in November (Table 3.l.6a-9).

Adults (n = 21) enroute to spawning areas were taken from March through May. The weekly n/drift hr in the spring was during mid-April {Table 3.1-221 * * * *

  • I
  • * * * * * .* * * * **
  • 3.l.6a-ll).

Seven yearlings were taken from late May through June. Two young-of-year were taken in mid-November . The n/drift hr was greater in the east for all months except April. 3.l.6b Juvenile and Adult Fishes -Tidal Tributaries (ETS Section 3.1.2.1.lg) The fishes of three tidal tributaries of the Delaware River near-Artificial Island, Appoquinirnink Creek, Delaware and Alloway and Hope creeks, New Jersey, were sampled in 1978 by seine and trawl (Figs. 3.l.6b-l and 2). Objectives were to 1) identify species and life stages that utilize the tributaries and 2) describe seasonal changes in species composition and distribution

  • 3.l.6b.l Summary A total of 4,299 specimens of 33 species were taken in combined seine and trawl collections.

The catch comprised freshwater, brackish water, and estuarine species. Murnmichog (n = 915), Atlantic silverside (811), banded killifish (374), silvery minnow (259), and tessellated darter (252) were the most abundant species taken by seine. Together these fish comprised some 82 percent of the annual catch. Hogchoker (n = 302), white perch (205), spot (150), weakfish (106), and brown bullhead (92) were the most abundant species taken by trawl and comprised nearly 76 percent of the annual catch. Several species including murnmichog, white perch, brown bullhead, and hogchoker were taken in nearly all months of sampling. However, for most species the period of occurrence was seasonal and strongly related to water temperature and salinity. During spring, the catch was predominated by fresh and brackish water species, eg. mummichog and banded killifish in the shore zone and white perch in the deeper waters. Hogchoker was taken in abundance in the deeper waters. Peak catch in the shore zone occurred during summer as large numbers of fresh and brackish water species (e.g. tessellated darter and silvery minnow) and estuarine fishes (e.g. Atlantic silverside and bay anchovy) were taken. Catch in deeper waters increased slightly over spring levels. Weakfish and hogchoker were the only species taken in abundance. White perch and bay anchovy were common. The catch in the shore zone decreased sharply during fall. Only Atlantic silverside and mummichog were taken in 3.1-222 abundance. However, peak catch in deeper waters occurred during this period as the numbers of several fresh and brackish water species increased. Spot, hogchoker, white perch, and brown bullhead were most abundant. By December only mummichog remained in abundance in the shore zone. Silvery minnow and white perch were common in the deeper waters. 3.l.6b.2 Materials and Methods FIELD All samples required under this ETS were collected. Biweekly to monthly seine and trawl samples were taken during daylight from March 27 through December 21. Seines were hauled at three stations each in Alloway and Appoquinimink creeks (Table 3.l.6b-l, Fig. 3.l.6b-l). Trawls were hauled in three zones each in Appoquinimink and Alloway creeks and two zones in Hope Creek (Table 3.l.6b-2, Fig. 3.l.6b-2). Gear included a 3.0-rn x 1.2-m (10.0-ft x 4.0-ft) flat seine with 3.2-mm (l/8-in) stretched mesh and a 2.7-m (9.0-ft) semi-balloon otter trawl. Gear deployment, sample processing, and collection of physicochemical data were as in 1977; for a complete description see the 1977 Annual Environmental Operating Report. DATA REDUCTION Data are discussed on the following statistics: s = species variety, n = number of specimens, T = number of trawl hauls, n/T = number of specimens per trawl haul, and n/coll = number of specimens per seine collection. Monthly mean and standard deviation for the more abundant species were calculated from log (x + 1) transformed cat£h per effort values of pooled semimonthly or monthly collections. Seasonal means by station or zone were calculated from log (x + 1) transformed catch per effort values for spring (March 16 through June 15), summer (June 16 through September 15), and fall (September 16 through December 15). Principal components analysis (BMPD4M Factor Analysis; Dixon, 1975) was used to calculate and display similarities in the catch composition among zones and stations. This 3.1-223 * * * * * *. * * * ** *

  • * * * * ** * * * *
  • method is described by Marriott (1974) and Pielou (1977). The twelve more abundant species taken by seine and the nine taken by trawl were included as variables.and stations or zones as observations.

A species by species (R-mode) product moment correlation matrix was calculated from log (x + 1) transformed catch data. The factor scores for each zone along only the first three component axes were plotted . 3.l.6b.3 Results TEMPORAL CATCH COMPOSITION A total of 3,173 specimens of 26 species* were collected in 79 seine collections; 1,126 specimens of 20 species were taken in 111 trawl collections (Tables 3.l.6b-3 and 4). Thirty-three species were taken in all; 13 were taken by both gear types. The most abundant species taken by seine were murnmichog (n = 915), Atlantic silverside (811), banded killifish (374)! silvery minnow (259), and tessellated darter (252). Together these comprised 82.3 percent of the annual catch. Hogchoker (n = 302), white perth (205), spot (150), weakfish (106), and brown bullhead (92) were the most abundant species taken by trawl and comprised 75.9 percent of the annual catch. Several species, including murnmithog, white perch, brown bullhead, and hogchoker were taken in nearly all months of sampling. However, the period of occurrence of other species was seasonal and correlated strongly to variations in salinity and water temperature . From March through May species variety and fish abundance were low. The catch comprised fresh or brackish water species and the estuarine hogchoker, bay anchovy, and Atlantic silverside. During this period mumrnichog and banded killif ish predominated the shore zone catch; hogchoker, white perch, and brown bullhead were most abundant in deeper waters. The number of species taken, particularly in the shore zone, increased in June as both adult and young-of-year of many freshwater species and alosids appeared as spawning activities of these fishes peaked. Several estuarine species, including Atlantic menhaden, spot, and weakfish were first taken. Fewer species were taken during July and August. Catch levels in the shore zone peaked during the summer season as large numbers of Atlantic silverside, mummichog, silvery minnow, and tessellated darter appeared in the catch. Bay anchovy, white perch, and Atlantic menhaden were taken in moderate numbers. In the deeper waters catch increased slightly over spring levels; weakfish and hogchoker were most abundant. 3.1-224 Species variety and catch levels decreased in the shore zone during fall. The catch of nearly all species was lower than during summer, particularly those that were abundant during the summer. Although abundance decreased, Atlantic silverside and mummichog remained the most abundant species in the shore zone. Conversely, species variety and catch levels increased in the deeper waters. Spot, hogchoker, white perch, and brown bullhead were most abundant. By December, few species were taken in the shore zone and only mummichog was abundant. In the deeper waters, ten species were taken but their catch was low. Silvery minnow and white perch were common. SPATIAL CATCH COMPOSITION A total of 2,036 specimens of 19 species were taken by seine in Alloway Creek and 1,137 specimens of 22 species were taken in Appoquinimink Creek (Table 3.l.6b-3). Fifteen species were common to both tributaries. The more abundant species in one tributary were also abundant in the other. Abundant in both tributaries were mummichog, Atlantic silverside, banded killifish, silvery minnow, tessellated darter, bay anchovy, and white perch. Bluegill, pumpkinseed, alewife, and white crappie were among the fishes taken only in Appoquinimink Creek; spot, bluefish, largemouth bass, and black crappie were taken only in Alloway Creek. The trawl catch was 692 specimens of 19 species in Appoquinimink Creek, 381 specimens of 16 species in Alloway Creek, and 53 specimens of 10 species in Hope Creek (Table 3.l.6b-4). Catch composition in Appoquinimink and Alloway creeks was similar. Most species abundant in one tributary were also abundant in the other; white perch and brown bullhead were abundant only in Appoquinimink Creek and bay anchovy only in Alloway Creek. The more abundant species common to both tributaries included hogchoker, spot, and weakfish. Species taken only in Appoquinimink Creek were gizzard shad, mummichog, striped bass, and yellow perch. Winter flounder was taken only in Alloway Creek. Species variety and abundance were low in Hope Creek and *species taken were also taken in the other tributaries. Similarity in catch among seine stations and trawl zones was calculated through the principal component analysis 3.l.6b-3 and 4). The first three components of the station comparison explain 90.0 percent of the total variance (Factor I = 37.4 percent; Factor II = 29.7; Factor III = 22.9). From the stations ALLl, ALL2, and APP3 are grouped, as are ALL3 and APP6 (Fig. 3.l.6b-3). Station APPS appears unique. The first three components of the zone comparison explain 87.l percent of the total variance (Factor I = 65.4 percent; Factor II = 12.3; Factor III = 3.1-225 * * * * * * * * * * ** *

  • * * * * * * * * *
  • 9.4). The analysis indicates that zones HOPl, HOP2, and ALL4 are similar and form one group (Fig. 3.l.6b-4).

In addition, zones APP3 and ALLl are grouped with Zone APPl . Zones APP5 and ALLS appear from other zones. The grouping of the zones and stations in relation to tributary mileage (distance from mouth) suggests that a factor such as salinity has a strong influence on catch composition.

  • SPECIES ACCOUNTS The eight most abundant species, each represented by more than 200 specimens in the combined seine and trawl catch,dare discussed in prder of decreasing abundance.

The following species accounts are based on annual summary data presented in Tables 3.l.6b-3 and 4 and monthly and seasonal data presented in Figures through 22 . Additional data have been included that are not presented in tabular form but are contained in the PSE&G aquatic data base. 1. Murnrnichog (n = 916, young and adult) comprised 21.3 percent of the total seine and trawl catch. All but one were taken by seine. annual n/coll was 11.5 (Table 3.l.6b-3). Length range was 13-108 mm. It was taken from March through December (Fig. 3.l.6b-5). Large numbers were taken from March through July, except in May. After July the catch declined through November and increased to peak levels in December. Distribution of mummichog in Alloway and Appoquinimink creeks was dissimilar (Fig. 3.l.6b-6). In Alloway Creek the catch was greatest during all seasons at the station furthest downstream (ALL3). The catch at ALLI was greater than ALL2 during spring and fall but was less than ALL2 during summer. In Appoquihimink Creek most of the spring catch was collected at APP3 followed in order by APP6 and APPS. During summer the catches at APP3 and APP6 were nearly equal; none were collected at APPS. Few were taken during fall

  • 2. Atlantic 18.8 percent collected by 3.l.6b-3).

silverside (n = 811, young and adult) comprised of the total seine and trawl catch. All were seine. The annual n/coll was 10.3 (Table Length range was 18-97 mm. It was taken in April and June through November (Fig . 3.l.6b-7). Abundance peaked in July and declined steadily through November except in October when the catch increased slightly. 3.1-226 Abundance during summer and fall was greatest at stations nearest the mouths (ALL3, APP6) of both tributaries (Fig. 3.l.6b-8). In Alloway Creek the catch at ALL2 was greater than ALLl during summer and fall. In Appoquinimink Creek none were taken at APPS during summer and few were taken at APP3 and APPS during fall. 3. Banded killifish (n = 374, young and adult) comprised 8.7 percent of the total seine and trawl catch. All were taken by seine. The annual n/coll was 4.7 (Table 3.l.6b-3). Length range was 18-91 mm. It was taken from April through December except during August and November (Fig. 3.l.6b-9). Peak abundance occurred in April and the catch declined steadily thereafter. Few were taken in September, October, and December. In both tributaries abundance during spring was greatest at the stations furthest upstream and decreased progressively downstream (Fig. 3.l.6b-10). The distribution was similar in Alloway Creek during summer. Few were taken during summer in Appoquinimink Creek or during fall in either tributary.

4. White perch (n = 324, several age groups) comprised 7.5 percent of the total seine and trawl catch. Some 63 percent were taken by trawl. The annual n/T and n/coll were 1.8 and 1.5, respectively (Tables 3.l.6b-3 and 4). Length range was 13-208 mm. It was taken by trawl from March through November (Fig. 3.l.6b-ll).

Large numbers were taken in April and October. Catch declined from April through August and increased through October. It was taken by seine from June through October (Fig. 3.l.6b-12). Peak abundance was in June and the catch declined steadily thereafter. During spring, white perch were most abundant in the trawl zones furthest upstream (Fig. 3.l.6b-13). In the summer the catch was similar in all zones although lowest in the zones closest to the mouths of the tributaries. During fall, the distribution in Appoquinirnink Creek was similar to that in spring. Few were taken in Alloway Creek during fall. Seine catch distributions were similar to trawl in that abundance was greatest at stations furthest upstream (Fig. 3.l.6b-14).

5. Hogchoker (n = 307, mostly age 0+ young) percent of the total seine and trawl catch. were collected by trawl. The annual n/T was 3.l.6b-4).

Length range was 30-156 mm. 3.1-227 comprised 7.1 All but five 2. 8 (Table * * * * * * * * * * ** *

  • * * * * * * * * * * **
  • It was collected from March through November (Fig. 3.l.6b-15). Large numbers were first taken in April. Catch decreased in May but increased to peak numbers in September . Abundance steadily declined through November.

During spring, distribution in Alloway and Appoquinimink creeks was similar; abundance increased in an upstream progression (Fig. 3.l.6b-16). During summer, the catch in Alloway Creek was greatest at ALL4; in Appoquinimink Creek abundance remained greatest upstream. During fall, as fish migrated down both tributaries, abundance decreased in the upstream zones. 6. Silvery minnow (n = 304, young and adult) comprised 7.1 percent of the total seine and trawl catch. Some 85 percent were collected by seine. The annual n/coll was 3.3 (Table 3.l.6b-3). Length range was 14-124 mm. It was taken in April and June through October (Fig. 3.l.6b-17). Few were taken in April. Abundance peaked in June and decreased steadily through October . Distribution during summer was similar in both tributaries with greatest abundance occurring at upstream stations (Fig. 3.l.6b-18). This pattern continued during fall in Appoquinimink Creek; few were taken during fall in Alloway Creek

  • 7. Tessellated darter (n = 252, young and adult) comprised 5.9 percent of the total seine and trawl catch. All were taken by seine. The annual n/coll was 3.2 (Table 3.l.6b-3).

Length range was 15-86 mm. It was taken from June through October except in August (Fig. 3.l.6b-19). Peak abundance occurred in June after which the catch declined steadily. Distribution was restricted to upstream stations of both tributaries during all seasons (Fig. 3.l.6b-20)

  • 8. Bay anchovy (n = 218, young and adult) comprised 5.1 percent of the total seine and trawl catch. Some 65 percent were collected by seine. The annual n/coll was 1.8 (Table 3.l.6b-3).

Length range was 14-81 mm. It was collected by seine from June through October (Fig . 3.l.6b-21). Abundance was low in June, increased to peak level in August, and subsequently decreased. Distribution in the two tributaries was dissimilar (Fig. 3.l.6b-22). In Alloway Creek it was taken in abundance only during summer when it occurred more abundantly at stations ALL2 and ALL3. In Appoquinimink Creek it was taken in low numbers during all seasons and was taken only at APP6 during spring and summer and APP3 during fall. 3.1-228

  • w f-' I N N \.D TAl:lLE 3.1.6a-1 FISHES COLLECTED FROM THE DELAWARE RIVER AND FOUR TIDAL TRil:lUTARIES NEAR ARTIFICIAL ISLAND JUNE 1968 TO DECEMBER 1978. TNOSE SPECIES TAKEN OUTSIDE Of, l:lUT ADJACENT TO, THt STUDY AREA HAVE THE LOCALITY NOTED IN PARENTHESES AFTER THE CUMMON HA8ITAT: M
  • MANINE: B
  • BRACKISH ( SALINITY 1-10 PPT ); F = FRESH. PRIMARY ACTIVITY IN AREA: N =

SP

  • IN AREA: SF
  • FEEDIN6; wF
  • WINTER FEEDING: N = NURSERY; R
  • RESIDENT SPECIES: ST
  • STRAY. TYPE Of T
  • TRAWL, S = SEINE, G
  • GILL NET. SPECIES OBSERVED BUT NOT COLLECTED ARE MARKED WITH AN ASTERISK.

SPECIES - LAMPREY - SHARKS SHARK DOGFISH DASWATJDAE - STINGRAY ( ao.ERS E:IE.ACH ) MYLIOBAJIJAE -EAGLE wAYS RAY - STURGEON ANGUILLl)AE -IRESHWAIER EELS EEL - EELS EEL CLUPE!DAE - HERRING ALOSA SHAO ALOSA ALUiA PRIMARY ACTIVITY HABITAT IN AREA 1966 H H H M H ST ST ST ST ST M181f SP1N H,8,F M,Sf M181F SP1N M,8,f M G s,r s,r T G H181F N1Sf s,T CLUPEA H Sl SHAD F,8 R1SP - A'CriUA MEPSETUS-STRlPED ANCHOVY ANChGA HlTCHILLI-BAY ANCHOVY * * *

  • M1B ST M,*a,F SP1N1 S_F
  • T 1969 G G G s,T s,r
  • 1970 T G s T G s,r s,r s s,T
  • 1971 T T s,T s,T,G s,r,G s,r,G s,T,G S1T1G s,r s,T s s,r 1972 T T s.r s,r,G s,r,G s,r,G G,T s s.r
  • 1973 s,r S1T1G S1T1G S1T1G S1G 1974 T s,r s
  • 1975 G s,f,G T1G s,T,G 1976 1977 G G T.G s,r s,r s,r,G s,r,G G,T s,r,G s,r,G s,r,G s,T,G 1978 T T s,r s,1,G T s,r,G G s,r,G s,T.G s,r,G s,r,G IA SALEM FF.1978 * * *
  • w .._:... I t\J w 0 * * * *
  • TABLE 3 .1. 6a-l CONTINUED
  • * * *
  • ACTIVIH S?CClES HABITAT IN AREA 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1Y7b
  • TROUTS SALMO GAIRDNERl*RAINBOW TROUT

- ESOCIOH -PIKES ESOx PICKERAL ESOI PICKERAL

  • LlZ&RDF!SHES StNQDUS LIZARDFISH CYPRINIOAE

- AhD CARPS M f,B CYPilll;lJS CARPIO-CARP f,B "UCHALIS*SILVERY MINNOW f ,8 CR!SDLEUCAS-GOLDEN SHINER f 18 SHINER f SHINER f18 &TRATULUS-aLACKNOSE DACE f SEMU!ILUS Ckua f - Clo?luOES CY?MINUS-OUILLSACK SUCKER ( lJP?CR CkEfKS l ERIHYZON CHUBSUCKER C Ci<EUS ) ST ST ST R,SP R.SP R.SP R,sp R1SP R.SP ST ST ST R,SP R,sp ICTALuRIOAE - CATFISHES ICTILU*JS CATFISn lCTALU*us SULLHE40 BULLkEAD lCTALu*JS CATFISH HAOTOH f,B 'R,SP F18 R1SP ( U??E:il l BATWACHOIDIOAE -TOADFlSHES OPSANUS TAU*OWSTER TOAOFISH LOPHIJDAE -GOOSEFISH LO?H!US &MEillCAhUS*GOOSEFISH GADIOAE

  • CODFISHES BlLINEARlS*SlLVER HAKE POLLACrilUS (LEWES) UROPHYClS CHUSS*REO F R f R.SP f il1SP M .,.. M ST ST ST ST T T* T s s s,r s,T s,T s s s.T s s s s s.T s T s s s s,T S1T s,T s s s s s s s,r s T S1T1G s,T s,T s S,T s s s,T s.r T s,r T s T s s s,r,G s.T s,r s s s T T s.r T T T T S,T s.T s.T s s.r T T T s s S*T s,r,G s,r s s s s T T T s S1T1G s,T s s s s s T s,r,G s,r s G s,r.G s,T,G T1G s,1 s,r s.r.G T T T T T IA SALEM l'F 1978 *
  • w I-' I N w I-' TABLE 3 .1. 6a-l CONTINUED PRIMARY ACT !VI TY SPECIES HABITAT IN AREA 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 -----------------------------------------------------------------9------------------------------.------------------------------------

UROPHYCIS REGIUS-5POTIEO HIKE OPHIOl!DIE -CUSl-EELS IND BROTULAS RlSSOLA CUSK-EEL EX 0 C 0 ET IJ A E -fl ll 'JG F l SHES AND HAL f BE AK S UN!flSCIATUS-HALFBEAK M - lSMES I. tt 0 LE F IS H -Kllllf!SHES C Y P R l N 0 D 0 tJ VA R I E GA T II S -S H EE P HE A 0 1'1 J tB;Q;./ FUNDULUS KILLIFISH FUhDUL0S KILLIFISH MIJ*L!S-STNIPED KILLIFISH KILLIFISH POECILLIDAE - -STLVE*SIOES SF ST ST R1SP SF SF SF SILVERS!DE SlLVERSIOE M,9,F SF,SP B,F,M R1SP GAST<QOSTEID&E APELTES STIULEMAU GASTEROSTEUS ACULEATUS*THREESPINE -PJPEFISHES ANO SEAHORSES M181F UF ERECTUS-LINEO SEAHORSE M18 ST SYNGhlTKUS P!PEFISH M,B,f N1SF PERC!CnlrlrlDAE -TEMPERATE BASSES PERCH HORONE BASS SERRANlOAE

  • SEA SASSES 9,f,M R,SP M,B,F M,R, N,Sf CENTRO?KISTIS STRIATA*8LACK SEA BASS H ST * * *
  • T T s 5,y s s s,r s,r s,r s.r s,T T T s,T s s s,r s s s s s s,r s,r T s,r S,T s,r
  • S,T s s s s s s s s s s s,r s s S,T s,r s s,r s s s,T s s s s s,r s,r s s,r s,r S1T T s s s s.r s s s s s,r T s,r s s s s s,T s S1T s S,T T s,r T T s,r s s s s s s S1T s,r s,r T s s s s s s s s s.r s s s ST s s s s S1T s s,r T s s s s s s s,T S,T T T s s s s s s,r s,T,G S1T1G s.T,G S1T1G s.T,G S1T1G s,T,G S1T1G s,T,G s.r.G S1T1G s,r.G 5,J,G s,T.G S1T1G s.1.G T T T T IA SALEM FF 1978 * * * * *
  • * * * * * * * * * * ** TABLE 3.l.6a-l CONTINUED PRIMARY ACTlVlTY SPCCltS HABI1AT I"' AREA 1968 1969 1970 1971 1972 1973 1974 19 75 1976 1977 1c;7o CENnAliC'1lCAE

-SUlifJSHES ENNHCANTt;LJS ST s SU'<flSH GLORIOSUS-BLUESPOTTED F ST s s,T SUNFISH LEPOMJS SUllFISH R1SP s s s s ( U?PEli ) LEPfi:-11 S f,9 R1SP s,T S1T S1T s,T s s,r s s LEPCJ;'.l S f,B k1SP T s,r s s,r s S1T s,r s,r s" s,r s,r MICwOr>IE*us BASS f,B ST s a ASS f,B R,sp s s s,T s s s,r s s s PO:<uJ. IS A'l'<ULARlS-:.HlTE CRAPPIE f,B k1SP s s s,r s,T s s s s s S1T PO!'!DXIS CRAPPIE F.s R1SP s,r S,T s,r s S1T s,T s s s s,r PERCIDAE -PERCliES ETiiEOSTO'IA f,B R1SP s,T S1T S1T S,T s s,r S1T s,r s,r w OAR HR PER CA PERCH f,a I-' R1SP s,T s,T s s,r s,T,G s,T s,r s,r S1T s S1T I PO"' A l -aLuEFISrES N H181F N1SF s*, T s.r S1T s,r s,r s,r S1T1G S1T1G S,T,G S,T,G s,r,G w N CARAllG!DAE - All 0 POMP.lo NOS CARA .. X HCK M,8,f N1SF 5,y s,T s s,r S1T s,r s,T s.T s.; s,r SELENE M,8 ST s s s

  • s,r T s TRACHI%TUS POMPANO M s (

brACH, LEWES TRACHl"lOTUS f .. LCATUS-PERMI T H s s ( SLAuG,;JEf< aEACH, LElolES ) VOMER MOON FISH H ST T s LUTJANIOAE -S'IAPPERS LUTJAt<US GR!SEUS-GPEY SNAPPER M,B,f ST s s s SPARIOAE - LAu:lDU'l RHOMoOlOES-PlhflSH M,8 ST s s s SCIAEl*IOAE -o 6AIRDIELU Crli<YSUl<A-SILVER PERCH H,B,f N,Sf s.r s,T s.r s.r s,r T s.T T T CYNOSCIO'i REGALlS:..EAKF!Sri M,B,f N1SF s,r s,r s,r s,r s,r,G s,T,G S, T, G s,J,G s.r.c; s,r,G s.r,G LEIOST:'.>"IUS XAI>. THURUS-SPOT M,8,f N,Sf s,r s,T T s,r s.r S1T s,r £,T,G S,T,G s,r,G s, T ,G M,9 ST s,r s s s,r s HICwOPOGON U"lCULATUS-ATLANTIC CROAKER H,6,f N1wf T T S1T S1T T s,r s,r s,r T s,r po.;ot.IAS CROHlS-BLACK ORUM H,8,f N1Sf S1T s.r s,r s.T s,r T s,r S1T s.r s,r IA SALEM FF 1978 w f-' I N w w * -BUTTE:RFLYFISHES CHAE rooo*i OCELLATUS-SPOTFIN 8UTTERFLYFISH '1UGll - l<U(,J l CEPHALIJS-Slfl!PED "UL LET .wuG l l LET SP H Y R A E: 1.1 0 U -3ARi<AClJDAS SP Hr RAE :1 BOREALIS-NORTHERN SENN ET ( LEw*S l UR AllOSC OP 1 DAE -11<\JSO?US STARGAZER G031IDAE -GOalES 80SCJ-NA<ED GOBY GOBIOSO'-IA G08Y ( "OODLANO BE:ACH l SCOl*laR!OAt - "'0 T U:.AS SCO.V.EH:.R f-.A(lllA !US-SPANISH STl<O'UTUDAE -BUTTi:Hf ISnES PE:PRILUS TRIICANTMUS-HUTTERFlSH TR!GL -SEAR02!*.s PRlo';ARY TABLE:3.l.6a-l CONTINUED ACT lVl n HABITAT IN AREA 1968 1969 1970 M ST M,9,f SF s s :-1,9, F ST s M s M,8 ST T T ,,.,9, F N1SF T s,r s,r M,B SF T T T M ST M ST M,8 SF T T T M ST PR!O'*UTUS SEAR08IN M ST T ( ) EVOLAliS-STRlPEO SEAROBIN M,B ST T T COTTI DAE -SCULPil.S MYOXOCEPttUUS AENAEUS-GRU88Y CLE;,JES> M -LEFTUE .FLOUNDER ETiiOPUS "118 ST s fLOUf<DER Pa.1.LICHTHYS FLOUNDER M,8 ST T T s,T PARALICHTHYS OURSPOT 14,9 ST FLOUNDER SCOPHTHALMUS 11,9* ST T s.T * * * *

  • 1971 1972 1973 1974 1975 1976 1977 T s s s s s s T s.r T T T T s,r s,r s.r s,r S1T s.r T T T T T G T T T. T1G T T1G T1G T s.r T T T T T T T s,r T s,r T s s T T T s,T s,r,G s,r S1T1G S1T s.T s,T T1G T s,T T s,r T T s,T T IA SALEM FF 1978 * * * * * *
  • * * * * **
  • TABLE 3.l.6a-l CONTINUED
  • * *
  • S?:.CIES PRIMARY ACTIVIH HABITAT AREA 1968 1969 1970 1971 1972 1973 1974 1975 197C 1977
  • RlGHTEYE PSEUOOPLEURONECTES 111,e,F N1SF s.r S1T s,T S1T S1T S1T S1T S1T FLOUNDER SOLE I DAE
  • SOLES TR 11.EC HS MACULATUS*HOGCHOKER M1B1F N*SF S1T S1T s,T s,r S1T S1T S1T s,T s,1,r. S,T,G 5,y,G
  • ror.GUUISHES
iY!':PhUilLIS 1118 T 5,y TOt<GUEflSH BALISTIDAE

-fILHlSHES SCHOEPF l*ORAtlGE FILEFISH H * -BOXflSHES l.\CH1P11ilYS TR HIUE T ER-SMOOTH TRUNKflSH H T -PUFFERS SPH,EROIDES PUFFER 11,s ST S1T s,r S1T s T S1T IA SALEM FF 197& . I

  • w I-' I N w V1 *
  • ux:mm: DESCRIPTIO:I: . BOTTO'! cet.:rnmtCil:

SLOPE Cf BEACH: VEGEWICll: LOCATIC!I: DESCRIPTIOO: CCl:!PC51Tt 00: SLOPE Of BEACH: VEGETA Tl !li: w::mrn: DESCRIPflctl: CCX!POS I THI!: SLOFE rf BUCH: vm:mtoo: LOCATl[XI: DESCRIPll(ll; BOTTOO Cr.t:?a> !Tit!!: SLOPE rf BEACH: V£GETATIOO: LOCJ. f 1 Cll: DESCR I Pfl Cll: BDTTCtl COOPQStrlGli: SLOPE Cf BUCH: VEG..'lATHll:

  • 'rABLE 3.l.6a-2 DESCRIPTION OF SEINE STATIONS -1970 rlnll lest shore of Dela1are River at mou\h of Peach*House Ditch. Station consists of a ditch ca. 70 yds long and a beach ca. 50 yds long. A small subnerged sand bar extends across the 1oulh of the ditch. Sand ar.d Ten to 15 degrees st high Ude; 3 to 5 degrees at loe tldo. little veoetatlon Immediately adjacent to beach or ditch, Area north end south of ditch vegetated 11th marsh grass. SG82 lest shore of Dela1aro River al Groan's Beach" located 1/4 wile north of the 1outl1 of Appoqulnlllnk Creek. Station consists of t/2-mile long beach. A small sand cliff about 8 ft high parallels the beach and slopes to beach level torard tho northern end of the area, Sand at high tide: sand-mud-rubble at 101 tld9, Ten degrees at high tide; 5 degrees at 101 tide. Ho aquatic vegetation present. AUBJ lest shore of Ocla1are River along Augustine Beach. Slat.Ion consists of le long beach lnlerrupted by ho launching mp1 and ho wooden bnakwaten.

Sunken barge borden north end. llo;t done In 110-yard area beheen the ho

  • Sand al high tide; soft mud at 101 tide. Ten lo 15 degrees at high tide; 5 degrees at 101 tide. Little vegelallon Immediately adjacent to station. sm lest shore of Delaware River, 3/4 ml le north of Canadas Beach. Station consists of 1/\-mlle lor.g beach lnlorrupted by chnnps of peat and boich gr:u:a. Thousand kn aar;h 1plllpool and a shallow ditch located. at southern end of station.
  • Sand and aud al high tide; mud at 101 tide; Fl fleen to 20 degrees at high tide; 5 to 10 degrees at* ]or tide, llltlo aquatic vegetation present. Beach bordered by hloh 1arsh gnin. Rm Ooh*are River east clde of Reedy lshnd. Shtlon consists of 1/2-slh be9ch at northern end of lal1nd. Sand and mud. Ton to 15 degrees at 1tll tldel lo vegetation.

Beach bordered by high lal'llh grass. * * *

  • IA SALEM FF 1978 * * * * * *
  • w f-J I N w m * *
  • LOCATWI: OESCRIPTHll:

CO:!POS ITl!lh SLOPE (f BEACH: VECilATICll: LOCATIOO: SESCRIPTIDN: BOTTo:l CCllPOSITICJI: SLOPE If eEACll: VESET ATI 00: . LOCATIOO: OESCRIPTl!:W: BOTTW CCllPOSITlal: SLOPE If BEACH: V[GETATICll: LOCAT I 0:1: OESCRIPTICli: BOTTC!l DESCRIPTllll: SLOPE If eEACH: VE GET ATI Cll: LOCATICli: OESCRIPTICll: BOJTCtl WlPOSITllll: SLOPE Cf BEACH: V£6CTATIOll:

  • * *
  • TABLE 3,l,6a-2 East shore of Delaware River, Elsinboro Point. CONTINUED El.PS * *
  • Station localed on BO-yard beach Interrupted 11th occasional grassy areaa. Boach protected dlract tldlll floa by a atnJ hat lH mile ofhhore, Sand and gravel 11th some sl lt. Ten to 20 degrees at all tidal phases. Beach bordered by high sarsh grass, 085A East shore of Delaware River at Oakwood Beach. . Station consists of I-mile section of beach localed north of Ehlnboro Paint. Sand and grave 1. . . Ten to 20 degrees at high tide; 5 to 10 degrees at lor tide, No aquatic vegetation present. SSC6 East shore of Oela1are River, In Sunken Ship Cove, on southorn end of Artificial hhnd. Station consists of an 80-yard beach at tho east end of Sunken Ship Cove. A sunken ahlp 1 a hull foraa & 1all at eut ind. Soft sand at high tide and 1ud at 101 tide, Twenty degrees at high tide; 5 degrees al 101 tide. Ho aquatic vegetation present. High marsh grass present about 30 yda Inshore. HOP7 East shore of Dola1are River; 1edgo-shaped beach south of Hope Creak b6heon tooar and bay :aar'.:at".

Station consists of 70-yard section of beach flanked by ahep jWlal banka a.id lnbrrupted by clu.:ipa of peal and bsach arus. Sand and gravel 11th soca hard mud. five lo 10 degrees at all tidal phases. Ho aquatic vegetation present.

  • llHCB Easl shore of Dela1are River north of Uad Horn CMiek. Station conslsla of beach about 70 yds Sand and 1ud, Tan to 12 degrees al high tide; 5 to 10 dogreo; at lo; tide. Shore 11 ne bordered by h lgh marsh grass. IA SALEM FF 1978 * *
  • TABLE 3.l.6a-3 TOTAL NUMRER, RANK, AND PERCENT OF .TOTAL DAYLIGHT SEINE C/\TCH -1978 STA Tl OU PH01 SGB2 AU83 STlA REI4 OB5A ELP5 SSC6 HOP7 MHCB TOTAL "'O* OF COLLS. (10) 17 17 17 17 17 17 17 17 17 17 170 NO. OF COLLS. t D> 17 17 17 17 17 17 17 17 17 17 170 NO. OF COLLS. t15> '-0-OF SPECIES 18 15 16 20 14 14 13 13 8 8 32 NO. OF SPEC l11Er!S 924 669 1,273 1, 071 451 21063 850 1.149 1,059 21152 11,661 SPf.CIES RANI( PCT 11. HEr, l DI A 504 316 i'7 3 352 200 131 236 557 651 11302 51022 1 43.1 A. Ml TCH!lll 265 269 262 440 153 11146 473 367 308 717 4,400 2 37.7 CY PR I r<J 0 A E 38 13 39 7 537 40 4 6 78 3 5.6 B. TI RA:,,ws 42 5 60 24 34 207 52 59 72 103 658 4 F.

66 II 125 158 38 8 27 41 11 464 s 4.2 L. 3 9 11 6 8 1 1 100 3 142 6 1.2 F

  • 9 9 1 1 3 13 22 14 72 7 .b w c. R<c.nrs 18 11 3 9 5 8 1 55 8 .s M.

2 1 4 15 2 II 1 33 9 .3 I-' 11. SAX4TILIS 1 1 3 2 1 6 5 19 10 .2 I P. cRons 1 1 1 6 2 1 1 14 11 .1 N A. ROSlRAJl 5 2 7 1 13 12 .1 w P. SALIATRIX 2 1 2 3 2 1 11 13 .1 -.-.] H. NUCf1*LlS 1 1 4 1 1 1 10 14 .1 T. MHULATUS 4 2 3 y 15 .1 P. 4 1 6 16 .1 s. Fu;.cus 2 2 5 17 .o s. FOEIE'iS 3 1 5 17 .o ". AESl IVAllS 1 2 1 4 19 .o r. 3 4 19 .o c. 3 3 21 .o c. AUi<AluS 1 1 2 22 .o 11. Ul.OUUTUS 2 2 22 .o I. NtBULOoUS 2 2 n .o s. 1 1 25 .o c. VAiHEGATUS 1 1 25 .o 11. BERYLLl'*ll 1 1 25 .o P. HAvESCErtS 1 1 25 .o c. HIPPCiS 1 1 25 .o l. 1 25 .o P. ANNuLARIS 1 1 25 .o P. TU5 1 1 25 .o IA SALEH Fl' 1978 * * * * * * * * * * * * *

  • * * * * * * * * * * * * * 'l'ABLE 3.l.6a-4 ANNUAL RANK AND PERCENT OF SEINE CATCH DURING 1970-1978 1970 .1971 1972 1973 percent percent percent percent Rank of catch Rank of catch Rank of catch Rank of catch . M. menidia l 47.4 l 39.9 l 39.5 l 46.0 A. mi tchilli 2 40.0 4 12.7 2 36.2 2 30.5 B. tyrannus 5 1.5 2 31.0 3 14.6 7 1.5 F. heteroclitus 4 1.6 7 1.1 5 1.4 5 l. 8 1974 1975 1976 1977 w percent percent percent pe:ccent Rank of cat*ch of catch Rank of catch of c2tch I N M. w menidia 2 28.7 l 34.5 2 33.6 2 33.0 00 A. r.:itchilli l 43.2 2 34.4 l 34.0 l 50.8 B. tyrannus 3 13.0 3 17.6 3 22.7 3 6.7 F. heteroclitus 6 1.8 5 3.1 5 1.9 5 2.9 1978 percent Rank of catch M. menidia l 43.l A. r.iitchilli 2 37.7 B. tyrannus 3 5.6 F. heteroclitus 4 4.2 IA S/>.LEH FP 1978 TABLE 3,l.6a-5 SEINE CATCH PER EFFORT (N/COLL) DURING 1975-1978 OF THE MOST ABUNDANT SPECIES TAKEN IN 1978 *. A DASI! INDICATES NO COLLECTIONS Jan. . Fi:?b. Mar. :*Apr. **May '"June -July -Aug. Sept. Oct. Nov. Dec. Annual Date n/coll n/coll n/coll n£'.coll n£'.coll n£'.coll n£'.coll n£'.coll n/coll n/coll n/coll n£'.coll n£'.coll !:!.* menidia 1975 l.O 0.6 1.0 2.0 17.0 B.B 32.8 89.2 46.4 31.0 19.0 7.6 25.2 1976 0 *
  • 10.4 4.0 B.2 31.4 41.4 77.2 24.2 10.4
  • 26.0 1977 0 3.6 10.B 7.0 34.2 33.2 37.2 63.8 11.8 0.8 21.2 1978 0
  • B.2 39.8 95.0 31.8 37.6 63.2 10.7 3.8 29.5 mitchilli 1975 0 .0 0
  • 34.0 18.6 26.2 59.8 28.0 58.l 19.0 0.2 25.2 w 1976 0 -0 0 34.0 57.0 46.2 31.6 45.B 36.B 7.J 2.0 0 26.4 f-J 1977 0 8.0 35.0 6.0 44.0 76.4 125.2 8.2 5.8 0 32.8 I 1978 0 0 20.3 43.6 50.9 34.4 67.2 10.l 2.8 0 25.9 N w .!!* tyrannus I.Cl 1975 0 0 0 1.6 60.6 37.0 11.2 0.6 0
  • 0.4 0.2 13.0 1976 0 0 0 4.2 131.2 65.6 18.8 11.0 2.4 0.8 0.4 0 17.6 1977 0 2.2 11.6 23.8 0.4 1.8 0.8 0
  • 0 4.2 1978 0 0
  • 32.9 28.l 0.3
  • 0 0 0 3.9 !* heteroclitus 1975 2.0 0 0.2 1.2 2.0 6.2 0;2 1.8 1.0 5.o 1.0 0.6 2.2 1976 0.4 1.0 3.0 1.4 2.2 0.8 1.0 0.8 1-.o 1.2 2.8 2.4 1.4 1977 0.8 l.2 4.4 0.6 0.4 0.8 5.4 : 3.4 0.4 0.4 1.8 1978 1.6 1.4 1.9 12.5 2.4 3.4 1.2 0 0.6 o.s 2.8 *
  • Less than 0.1 IA SALEH FF 1978 * * * * * * * * * * * * * *
  • w I-' I N ""' 0 * * * * * * *
  • TABLE 3 :l. 6a-6 DESCRIPTION OF RIVER TRAWL ZONES -1970 Ni2 1:£2 i ls *Soult.em:

Line the entrance to the Chesa.peake and Delaware Canal to !he boundary of the shipping channel.

  • O"l2"are shore.

Pea Pa:ch Island ar.d the <eslern boundary of the shipping channel. l:cdi:em:

  • Line fro" !leu Casile ta B"oy 50. . Southern:

Cable area on east side of Reedy Island; and line from northern *tip of P.:edy Island to a point on lhe western boundary of !he shipping 7cJ yards above S"oy SR. \;es!ern:

  • Dda;:re Eastarr.:
  • P.<e.Jy Island ;;d *eslern boundary of !he shipping ch2nnel.

iron it.e enlr;;r,ce io the Chesapeake and Oela"are Canal to the **stem boundary of !t:e channel. Southern: Line froo Ice soutl:ern tip of Hickory Island (at Muth of River) lo eastern of shipping channel (across Buoy Sil). 11.asic:rn: of shipping channel. sf.ore. i.orfr.<m: Line fro:i Pec.nsvi Ile to Buoy 60. Scetr.ern: i;$ :am: Eashr.a: Northern: Lir.e Iran Elsinboro Point ta a point on !ho eastern boundary of tho shi*;iin* chor.r.ol yJrCs belo* Buoy N211.

  • Easler:i t"cncory of shipping channel.

J"rscy line fro" sodhern lip of l!ickory Island (c.oulh of Salem River) to eastern touncary of sh I P?lng channe 1 (across channo 1 froo Buoy SN). lice fro." Dela.ue Point lo a point on Iha *oslurn boundary of the yards a"oy R5L. ics!c:r:i: Ezs tern: st . >estorn of shlp;ilng channel. Line f ro1 th of Rey 1 s Di !ch lo po I nl on tho eestern boundary of tho cbr.nel yards belor Buoy IB. Southcm: Lice fro, eakeo1en Point tu Buoy (39° 21.' N latitude), Dcl2*;3re sr.cre

  • Sil [;;ster:::

ies\ern of ship;iing Line Oel;i;;aro Point to a point on tho western boundary of tho 5hip;;ing channel yards Buoy R5L. Shara East: Marsh (Pea Pa !ch lslar.d) and surr.icrgcd dike. W<st: ar.d De !;::;:;re Ci ty b" l khe<d

  • East:

in terrupfod by sand beach (Rcody lslar.d). Wi::st: lntcrr"phd by sand beach. East: Interrupted by sand beach. West: none Ead: Interrupted by sand beach. West: nor.a East: none West: Interrupted sand beach. East: ncne by beach. * * * *

  • at Lo .. (ft) Range: 1/2 ft to r.2rd and zoft .\0 ft
  • 10 ft Range: 1/2 ft to Soft .:ud ft 11 ft Range: 1/2 ft ta H:;rd <c*d 40 ft soft 10 ft Range: 1 ft to !'"'rd zc.d u ft 9 ft Range: 1/2 ft to sc.d 3! ft sdt *od 13 ft. Range: 1 ft to P°"r:i ;,c.:l 3a rt SC ft 13 ft IA SALEH l.'F 1078 _ __J
  • w I-' I N I-' *
  • Zcr.e 2orcer Lhl ts TABLE 3.l.6a-6 CONTINUED Souli:em:

liM fr"1 5CO yards r.ou!h of Mad Horse Creek to a point on the e23iarn bucd;;ry of the channel 400 yards belou Buoy R6L. SE3 E"stern toec.cary of , SEO 1-1 r-z E2slerr.: J"rsey shore. l:oricem: Lir.e Creek Jetty Buoy RBL. Soul!:ern: Lir.e fro1 /1rnold Point to a on the eastern boundary of the ;"::;!:rn: of shi::Jpir.g channel. E.:s ?:1?.- i;cdhern: line 5CJ yards ;;bove r.outh of :!.ad Horse Creek to a poir.t on the easlam of shipping channel 400 yards beloR Buoy R6L. line frc" D,c,ks Point to:er* to Buoy 42 *. Eastern of shipping £as tern: So"tf>ern: Ii:: . ..'ersey Lioe fro, l.rcold Faint to a on the eastern boundary of the I oile belo* Buoy R4L. Line fron Sea Breeze to Ship John Shoal. Eas!cr1 of shipping

b-.;

sr.ore. Line fro" Point to"cr to Buoy S>utccr:i: Lir.e for RJy's Ditch lo Hope Creek Jelty. i-:s sl:cre. li?dorn tour.o;ry of shl?ping channel to Buoy IB, to southern tip of lsh:1d Dike. Line fron lo*.cr break to light at southern tip of Reedy Island Dike. Sc"l!:om: Lioe froo lo.er break to light at southern tip of Reedy Island Dike. i::$ter.i: £2s !t;rn: i'estern: Eastern: t\ort."iem:

  • Del2';..:!r2 Rre:!y Island Dike. line fro' r.ce\1 1 of Augustine Creek to point on Reedy Island Dike, l,DOO yores light belo;i break In Reedy Island Dike. Line fro" oouth of Creek to point on Reedy Island Olko,.1,000 y2rcs lelo; light beloa break In Reedy Island Dlkfr.

shore.

  • Island Dike. CJble area east of Reedy Island. * * *
  • East:

interrupted by sand beach. West: none East: Marsh Interrupted by sand beach. West: none East: Marsh Interrupted by sand beach. West: none East: Interrupted by sand beach. West: none East:' Rocky a I ong Reedy Island Dike. West: Interrupted by sand beach. East: Rocky lies!: Interrupted by sand beach. East: Rocky lest: Interrupted by sand beach.

  • Oapth at t:ec.n lo; Rater (ft) Range: 1/2 ft to 35 ft 13 ft Range: 1 ft fo 30 ft Mode: 13 ft R211ge: 3 ft to 31 ft aode: 13 ft Range: 1 ft to H ft aode: *JO ft Rar.ge: I ft to 32 ft 3;n Range: I ft to 19 ft 4 ft Rance: 1/2 ft to 22 ft Mode: 8 ft toHo::i Ty:; iiud swf t P.ard soft Hard ad soft Hard ad soft Hard r."d sand; rock ne2r dike, rwcky Soft cud near dike Soft cd rocky near dike IA SALEH FF 1978 * * * * *
  • w I-' I N >I>> N *
  • E-1 E..Z E-3 E4
  • Southern:

Eastern: Southern: Easte:-n: lcstern: Northern: Southern: les tern: E::s Southern: las le;n: Eastern: XJrthem: Southern: E.A:. tern: *

  • Border Lioi ts Lir.e l!ope Creek Jetty to Buoy R8L. Eastern of shipping channel. l:e. Jersey shore. *
  • ThBLE 3 .1. 6a-6 CCNTINUE:D Line fron 'estern lip of Suni:en Ships lo a point on tho eastern boundary of the ship;;inQ crannel 1,500 yards Buoy RZB. Llr.e .eslcrn lip of Sunken Ships to a point on the eastern boundary cf shipcir.g ch3or.'1 1,SCD y*rds Buoy RZB. Ila. Jersey sbre {Artificial Island). ; Eastern bur.dary of ship;;ing channel. l!ne froo a roint l,SCO yards north of !he southern tip of Artificial .Island lo a ;oint on the eastern boundary of the shipping channel 100 yarcs :i:Oove 5"oy R2R. Line fro.' a point l,500 yards north of the southern tip of Artificial lslo:id to a on the eastern boundary of the shipping channel 100 yards belo* Buoy R\8. [:stern b"nd.1ry of shipping channel, sho:-e Line a rolnt 2,000 yards south of northern tip' of Artificial Island lo a the eastern boundary of the shipping channel 100
  • bov e SJoy P.2?.. Line fro, a pint 2,000 yards south of the northern lip of Artificial lo a pint en the eastern boundary of tho shipping channel 100 RZR. (aster:i of shlpi;lng channel.

Ji;rsey srcre. Lir.e frc, r.arih lip of Artificial Island la a point ori the e>slern boundary of the channel 1,000 yards above Buoy ti4R. Lloe froi r.crH:ern tip of Artificial Island lo a point on the eastern of the ct:Jr.nel lCO yards above Buoy 11\R. Eostorn oi shipping chanr.el, Jersey

  • Shore £ast: H3rsh interrupted by sand beach, none East: Rack va 11 ilest: none East: Rock 1all ied: none East: Reck *all none East:

by sar.d beach. lest: none Line fro> a pJlnt yards south of Straight* Ditch ta'a paint on tho eastern bour.dary of the shipping channal 100 y:irds :;bova Buoy U5R.

  • Depth at

{ft) Range: 1 ft to it Mada: 17 ft Range: 11 ft ta l ft 26 ft Range: 7 ft ta 33 ft !lode: 23 ft Range: ](} ... f\ ta 35 ft 25 H Rar.Qe: l ft to H ft 16 ft

  • BJttc:-.:

J:e_ fhrd sand and cud f;ard 'ar.d .and .:.:..:d H*rd sond a.id H.::.rd zar1d a."'d :1-:d Hud and soft c:id IA SALEH f"P 1978 * * *

  • w f-' I N *"' w *
  • E-5 R\l RIZ SSC eord!r LI n 1 ts TABLE 3 .1. 6a-6 CON'rINUED Soot'1ern:

line !roo 2 ;°'in! prds soulh of Straight Ditch to a on tr.a e2s!2rn bocobry of the channel 1,000 yards above Buoy N6R. l:s!*::"":i: of r:e.: sto:-e. S:rth2rn: Lir.e frco Point to a point on eastern boundary of shipping ch2cne'l 1,500 yards belc*, Buoy 11211. Ezs!m:: Scutharn: Line scolC.ern lip of Reedy lsl2r.d Dike lo Buoy lB. R,d, c;;:e. tc:.r:::::ry cf ship;iing chanr.el. Lir.e sccth of flashing green 2l-second light on Reedy Island Dike to a on the testern boundary of !he shipping channel lOD yards south of 2coy Cl R. lir.e of flashiog green 2!-second llght on Reedy Island Dike to a phi on lhe ;c;.forn b"ndary of !he shipping channel approxlcately lGQ pres of euoy CIR. P.eecy lslacd Dih. o?slern buocary of channel. Lir.e fron r.crthern lip of Reedy Island to a point on the western boundary Of the 1,0QO yards above Buoy SR. Shore East: Marsh Interrupted by sand beach. none East: none West: Rocky (Reecy Island r.arsh, sand beach (Reedy Island). East: none West: Rccky (Reedy Island Dike); marsh, sand beach (Reedy Is land). De;ith at Lo* 1'3\er (ft) Rar.ge: 1 ft to 43 ft !!ode: 16 ft Range: H ft to 32 ft 22 ft 2 ft to 33 ft 22 ft S:c!i:ern: of Ser.ken Snl>s. Ur.e froo Hstern tip of Sunken Ships to southem tip of Artificial of S"nken Ships. East: Ila ll Island. West: r.one Range: 1 ft to 17 ft (z.s!er.-:: Ncrthem: f:e; Jersey (Artificial Island). North: S<nd beach, rock *all South: Wood Wall

  • 9 ft E:)!tc::i Ty:e i:arc <r.d soft sar.d oud F.cc<y (near dike); soft C:Jd Rocky (r.ear. dika); scft Soft oud and IA SALEM FF*l978 * * * * * * * * * * *
  • * * * * * * * * * * *
  • TABU: 3,l.6a-7 ANNUAL TRAl*IL CA'rCI! s*rATrs*rrcs

-1978 ZONE CHA1 CHA2 CHA3 NO. OF COLLECTIPNS 18 18 1 8 N:l. Of SPECIES 19 15 18 NO. Of SPECIMENS 1.360 1.390 21081 S? EC IM Ell S / 1 0 MIN TRAWL (NIT> 37.8 3!!.6 80.0 SPECIES NUMBER NIT T* NIT* NUMBER N/T T* tl/T* NUMBER N/T T;r NIT* '* OlYRf<YllCHUS 2 .1 2 .5 A. ROSTRAU 3 .1 3 .5 4 .1 2 1.0 26 .7 6 2.2 '* AEST 11 .3 2 2.8 21 .6 3 3.5 10 .3 1. 5.0 A. 5 .1 2 1.3 4 .1 2 1.0 3 .1 2 .8 '* 1 1 .5 B. r r R :.1, 8 .2 2 2.0 5 .1 2 1. 3 '* M!TCk!Lll 269 7.5 12 11

  • 2 281 7.8 14 10.0 113 3.1 1 5 3.8 w 1. PU*;CTAfUS 1 1 . s I-' s.

1 1 .5 I o. T All 6 .2 3 1.0 N R. 3 .1 2 .8 5 .1 4 .6 .5 M. ME 111 0 I A 1 1 .5 P. 1

  • 5 "I. .:OMEnCA'U 2 .1 1.0 4 .1 2 1.0 11 .3 3 , . M.

1 1 .s 2 .1 1 1. J P. SALTlTRIX 1 1 .5 2 .1 1 1.0 c. ?. Et.AL 1 S 866 24.1 11 39.4 1,010 28.1 10 50.5 2,261 62.8 10 113.1 L. 3 .1 2 .8 3 .1 2 .8 11 .3 3 1

  • 8 M. U"DULATUS 45 1.3 3 7. 5 27 .8 3 4.5 49 1.4 2 12.3 P.

3 .1 2 .8 3 .1 2 .8 11 .3 I., i., A. GUTUTUS 1 1 .5 ?. TR I AC A'n HUS 3 .1 1 5 .1 4 .6 7 .2 3 1.2 P. ALE P I 0.) TU s* 1 1 .s Ii. ACLJOSUS 4 .1 3 .7 T. "!HULA TUS 132 3.7 8 8.3 13 .4 8 .a *365 10.1 10 18.3 T* NUMBER OF TllAiJL HAULS WITH SPECIES N/Ta S?ECHIENSl10 MIN TRAWL IN WHICH SPECIE Ii lolAS TAKEN IA Sl'.LEH FF 1978 w f--' I N ""' V1

  • TABLE 3. l.6a-7 CONTINUED Z Dt1 E CHA4 NO. OF COLLECTIONS 17 tJQ. OF SPECIES 16 ND. OF SPEC I MENS 3.602 SPECIHE'IS/10 HIN Tl!AloiL (NIT> 1 OS.9 SPECIES NUMBER NIT l.

RAU 15 .4 A. AfSTlVALIS 24 .7 l. PSEUDOrlAREf;GUS 2 .1 A. SAP I 0 I SS Il'1A 4 .1 a. A'; 8 .2 A. 80 2.4 I. PU**C TA rus 1 R. 1 'I. Ai' E:" IC A *a 22 .6 'I. SlUTIL!S P. SALTATRIX 1 c. R.EG!LIS 31268 96.1 L. 5 .1 M. 11 .3 P. c;;oMIS 3 .1 A. GUTTATUS P. 4 .1 s. AOIJOSUS 1. MACULA TUS 153 4.5 T* NUM3ER OF TR.O.lll HAULS WITH SPECIES NIU SPECIHENS/10 MIN TRAll:L IN WHICH * * *

  • T* NIU s 1. 5 4 3.0 1 1.0 1 2.0 7 .6 12 3.3 1 .5 1 .5 8 1.4 1 .5 9 181.6 2 1.3 3 1.8 2 .8 3
  • 7 10 1.1 SPECIES WAS TAKEN
  • NUMBER 16 20 3 1 5 54 2 20 1 , 2,476 2 14 1 1 1 1 , 74 CHAS 17 18 2.793 82.1 N/T .s .6 .1 .1 1.6 .1 .6 72.8 .1 ,..J.4 5.1 *
  • T* NIT* NUMBER N/T T* 101* 5 1.6 4 2.5 1 1.5 1 .5 3 .8 10 2.7 1 1.0 4 2.5 1 .s 1 .5 9 137.6 2 .s 2 3.5 1 .5 1 .5 1 .5 . 1 .5 9 9.7 IA SALEM FF 1978 * * * * *

' * * * * * * * * * * **

  • TABLE 3.1.6.'l-7 CONTINUED ZONE E-1 E-2 E-3 NO. OF COLLECTIONS 36 36 36 NO. OF SPECIES 22 16 14 NO. OF SPECIMENS 5.546 3, 433 2.sss SPECIHENS/10 HIN TRAWL (NIT> 154.1 95.4 79.3 SPECIES NUHBEA NIT T* NI Tlr NUMBER NIT fir N/Tilr NUHBER NIT y .. 11./Ta A.

2 .1 2 1. ll .I.. ROSTRq.1. 39 1.1 9 4.3 45 1.3 9 5.0 23 .6 3 2.9 A.. 39 1.1 3 13.0 35 1.0 9 3.9 28 .8 5 5.6 A. PSEUDJ'14RENGUS 4 .1 4 1.0 2 .1 1 2.0 A.. SA?IDISSPU 1 1 1.0 1 1 1.0 8. At, 'iU S 1 1 1.0 2 .1 2 1.0 1 1 1.0 A.. klTCrllLLI 2,814 78.2 28 100.S 565 15.7 22 25.7 356 9.9 22 1 6. 2 w I. PLH;C TA !US 1 1 1.0 1 1 1.0 I-' o. T :.!I 1 1 1.0 I R. I .I. 6 .2 4 1 -5 5 .1 3 i.7 6 .2 3 2.0 N '4. MEtdD!A 2 .1 2 1.0 ""' s. Fuse us 1 1 1.0 O"\ 1'1. 24 .7 7 3.4 29 .8 8 3.6 121 3.4 8 15.1 "'. SAHTILIS 2 .1 1 2.0 2 .1 2 1.0 P. 2 .1 2 1.0 c. Hl?PuS 9 .3 , 9.0 c. licGl.LIS 1,494 41. 5 16 93.4 11467 40.8 20 73.4 1,291. 35.9 17 76 .1 L. 1.1; I '1 u < u S 72 2.0 8 9.0 11 .3 7 1.6 5 .1 !.; 1.3 lol. Ut;OULHUS 3 .1 3 .1.0 /.; .1 3 1.3 P. Ci<OMIS 6 .2 4 1. 5 11 7 1.6 2 .1 i 2.D P. 5 .1 1 5.0 1 1 1.0 P. HEPI DOT US 1 1 1.0 P. 5 .1 3 1

  • 7 1.0 P. AHtRlCH1LJS 1 1 1.0 T. llACUL4 TuS 1'016 28.2 21 48.4 1.255 34.9 22 57.0 1.010 28.1 21 'a., T* NUMSER OF TRAWL HAULS UITH SPECIES N/h SPEClMENS.110

,..IN TRAWL IN WHICH SPECIES WAS TAKEN IA SALt;H J;>F 1978 'rl\13LE 3.l.6a-7 CONTINUED zo*; E E*4 E-5 E-6 NO. CF COLLECTIONS 36 36 36 "0. Of SPECIES 19 20 20 NO. OF SPECIMENS 3.618 7,569 4,260 SP E Cl P. Et; S / 1 0 "IIN TflAWL <NIT> , 00.5 210.3 118.3 SPECIES NUMBER N/T "" NIT* NUMBER NIT T* NIT* NUl"BER NIT T* NIH. l. 1 1 1.0 A* RDSPlP 13 .4 9 1.4 21 .6 11 1.9 63 1.1! 11 5.7 A. HSTIVALIS 17 .5 7 2.4 9 .3 4 2.3 10 .3 6 1. 7 l. 1 1 1.0 5 .1 5 1.0 2 .1 2 1.0 A. SPIDJ 0:;SIMA 1 1 1.0 1 1 1.0 B. T Y ii l I*'; JS 2 .1 2 1.0 4 .1 3 1. 3 10 .3 6 1. 7 w o. CE>'ED 1 1 1.0 A. HITCHilll 213 5.9 20 10.7 1,643 45.6 19 86.5 1,168 32.4 20 58.4 f-' c. CARPIO 1 1 1.0 2 .1 2 1.0 I 1. CATUS 3 .1 3 1.0 N I. 2 .1 1 2.0 4 .1 2 2.0 oJ::>. l. PLJl.C Tl TuS 3 .1 2 1. 5 6 .2 4 1.5 13 .4 8 1.6 -J R. 4 .1 3 1.3 1 1 1.0 s. Fur-u.:s 1 1 1.0 "* Pit: i< l CA'<A 98 2.7 10 9.8 340 9.4 10 34.0 76 2.1 13 5.8 "'. SlXATlL!S 2 .1 1 2.0 15 .4 2 7.5 P. 2 .1 2 1.0 3 .1 3 1.0 c. REGALIS 1,909 53.0 18 106.1 1, 205 33.5 20 60.3 598 16.6 17 35.2 L. 8 .2 5 1.6 37 1.0 11 3.4 37 1.0 10 3.7 1'1. 6 .2 3 2.0 10 ** 3 4 2.5 8 .2 4 2.0 P. CR S '-':IS 3 .1 3 1.0 9 .3 7 1.;3 6 .2 4 1

  • 5 P.

1 1 1.0 8 .2 4 2.0 3 .* 1 2 1.5 P. OEl<TATUS 4 .1 2 2.0 3 .1 3 1.0 s. AOLJOSUS 1 1 1.0 1 1 1.0 T. HACULATUS 1,333 37.0 23 58.0 4,247 118.0 26 163.3 2,249 62.5 25 90.0 T* NUl-IBEll OF TRAiil HAULS WITH SPECIES NIT* SPECH!ENSl10 MIN TRAWL IN WHICH SPECIES loJAS TAKEN IA SA'LEH FF 1978 * * * * * * * * * * *

  • * * * * * * * * *
  • TABLE 3.1. 6a-7 CONTINUED ZONE NE1 NE2 RI1 NO. Of COLLECTIONS 32 28 28 l<O. Of SPECIES 19 20 15 NO. OF SPECIMENS 41398 5,495 3,553 SPECIMEl<Sl10 MIN TRAiil (N/T) 137.4 196. 3 126. 9 SPECIES NUMBER NIT T* NI Tlr NUMBER NIT T* NIT* NUMBER NIT 1;; NI T1< A. ROSTRAT4 6 .2 5 1. 2 16 .6 8 2.0 114 4.1 7
  • 16. 3 A. AESTIVALIS 74 2.3 6 12. 3 24 .9 5 4.8 10 .4 4 2.5 A.

5 .2 3 1. 7 7 .3 3 2.3 9 .l 4 2.3 8. 7 .2 5 1.4 6 .2 6 1.0 19 .7 6 3.2 o. CEPcOIANUM 1 1 1.0 A. 865 27.0 1 20 43.3 1,470 52.5 14 105. 0 231 6.3 19 1 2. 2 c. CAR?lO 2 .1 1 2.0 1 1 1.0 w Ii. 9 .3 2 4.5 6 .2 4 1. 5 I. CA TlJS 1 1 1.0 2 .1 2 1.0 f--' I. 2 .1 2 1.0 18 .6 7 2.6 I I. Pll'<CTATUS 4 .1 4 1.0 3 .1 2 1.5 N o. TAU 1 1 1. 0 ""' s. fUSCUS 1 1 1

  • 0 OJ H. AWEidCA>U 125 3.9 15 8.3 224 8.0 16 14.0 20 .7 11 i.a H. SAX:.TILIS 1 1 1.0 5 .2 5 1. 0 P.

1 1 1 * [J P. SHH1"1X 1 1 1.0 2 .1 2 1.0 3 .1 3 1.0 c. 11329 41.5 13 21100 75.0 11 HO. 9 21987 106. 7 13 229. 8 L. 90 2.11 12 7.5 90 8 11. 3 H. 4 .1 3 1.3 15 .5 5 3.0 66 2.4 6 11.0 P. CR 0:-i IS 12 .4 6 2.0 12 .4 3 4.0 4 .1 3 1.3 P. HlACO;TkUS 1 1 1.0 P. OEt;U TUS 2 .1 2-0 s. 2 .1 1 2.0 T. HACULA rus 11859 58.1 24 77-5 1.492 53.3 21 71.0 85 3.0 13 6.5 T* NUl-laER OF TRAWL HAULS WITH SPEC lES NJT* SPECIHENS/10 MIN TRAWL IN WHICH SPECIES llAS TAKEN IA SALEM l'P 1978 'rl\13!,F. 3.1. Ga-7 CONTINUED RI2 SEO SE1 OF COLLECTIONS 28 36 36 llO. OF SPECIES 15 26 19 f;O. OF SPECPIENS 5,401 4,549 3,915 SPEClMEhS/10 MIN TRAWL (NIT> 192.9 126.3 106.0 SPECIES NUMBER NIT T* NIT If NUMBER NIT T* NIT* NUMBER NIT T*. NIT* . P. I 11 US 1 1 1.0 R. 8 01< S S 1 1 1.0 A. 1 1 1.0 A. 85 3.0 8 10.6 4* .1 4 1.0 18 .5 7 2.6 A. AESTIOLIS 12 .4 5 2.4 6 .2 3 2.0 30 .8 4 7.5 A. 3 .1 1 3.0 8 .2 2 4.0 8. 1 23 .8 9 2.6 1 1 1.0 6 .2 3 2.0 w A. 428 15.3 16 26.8 1,917 53.3 25 76.7 892 24.8 23 38.8 . s. 1 1 1.0 f-' 0. TAU 38 1.1 12 3.2 14 .4 7 2.0 I U. Ciil1SS 2 .1 1 2.0 6 .2 1 6.0 N R

  • le> 'G I 'I AT A 13 .4 7 1.9 21 .6 8 2.6 l.D H. "E"lD!A 3 .1 2 1. 5 1 1 1.0 s. ruscus 2 .1 1 2.0 2 .1 2 1.0 'I.

31 1.1 11 2.8 29 .8 5 5.8 42 1.2 5 8.4 M. S>UTILIS 1 1 1.0 C. STRIATA 2 .1 1 2.0 P. SALTAT'l!X 2 .1 2 1 .* 0 3 .1 2 1

  • 5 1 1 1.0 c. REGALIS 4.612 164.7 11 419.3 21226 61.8 19 117.2 1,750 48.6 21 83.5 L. XH;JHURUS 7 .3 2 3.S 5 *.1 4 1. 3 9 .3 5 1.8 M. 11\uULHUS 23 .8 6 3.8 7 .2 2 15 .4 5 3.0 P.

6 .2 5 1.2 4 .1 3 1.3 9 .3 3 3.0 A. GUTT A rus 7 .2 3 2.3 G. BOSCI 2 .1 2 1.0 P. T;; I AC A *1 THUS 4 .1 3 1.3 P. ALEP!OOTUS 2 .1 1 2.0 P. 1 1 1.0 1 1 1.0 3 .1 2 1.5 s. fouosus 3 .1 3 1.0 13 .4 5 2.6 T. 11ACUL4TUS 164 5.9 16 10.3 266 7.4 24 11 .1 975 27 .1 24 40.6 T" OF TRAWL HAULS WITH SPECIES NIT* SPECIMENSl10 MIN TRAWL IN WHICH SPECIES WAS TAKEN IA SALEM FF 1978 * * * * * * * * * * *

  • * * * * * * * * * * *
  • Tt,BLE 3.l.6a-7 CONTINUlm ZO"IE SE2 SE3 SSC NO. Of COLLECTIONS 36 36. 38 NO. OF SPECIES 21 24 25 liO. OF-SPEClMEtiS 4,073 3, 710 7 ,135 SPEClHEl-iS/10 HIN TRAWL CNIT> 113.1 10 3 .1 375.S SPECIES tJUHBER N/T T* NIT* NUMBER N/T Tole NIT* NUMBER NIT T* NIT .. A. ROSTiUTA 28 .s 8 3.5 5 .1 4 1.3 7 .k 6 2.3 A. HSTI*ALlS 33 .9 7 4.7 22 .6 6 3. 7 55 2.9 5 22.0 A. PSEUDJriARENGUS 6 .2 2 3.0 8 .2 4 2.0 4 .2 4 2.0 A. SA?lDlSSlHA 1 1 1.0 4 .2 3 2.7 B. Ty ill '*'iuS 5 .1 2 2.5 1
  • 1 1 2.0 o. CEPEOlA>WH 1 .1 1 2.0 w A. 1"llC'11LLl

,,439 40.0 22 65.4 1,318 36.6 27 48.8 5,424 285.S 31 349.9 I. CATUS 2 .1 , :..u I-' l. t.EBULOSUS 4 .2 2 1..0 I s. 1 1 1.0 N o. TAU 11 .3 4 2.8 7 .2 5 1. 4 U1 u. C HIJS S 2 .1 2 1.0 11 .3 3 3.7 6 .3 I; 3.0 0 R. 10 .3 6 1. 7 1 1 1.0 1

  • 1 1 2.8 M. 1<E>;lDU 18 .5 1 18.0 5
  • 3 2 5.0 s. F 1. SC US 4 .1 3 1. 3 6 .2 6 1.0 6 .3 5 2.4 P. El'OLA'S 1 1 1.0 2 .1 1 2.0 Joi.

32 .9 6 5.3 27 .8 8 3.4 165 8.7 ; 5 22.0 .. SHATILIS 4 .1 2 2.0 1

  • 1 1 2.0 P. SH UTillX 1.0 1
  • 1 , 2. ll c. lil?POS 5 .3 3 3.5 c. HG.IL IS 11467 40.8 20 73.4 585 16.3 17 34.4 802 42.2 i9 Bk.4 L.

13 .4 6 2.2 54 1.5 8 6.8 127 6.7 23 , 1.0 "* TUS 7 .2 2 3.5 3 .1 2 1. 5 1 . , 1 2.0 P. CR J>< i S 1 5 .4 6 2.5 7 .2 7 1.0 10 .5 5 4.0 A. GUTHTUS 1 1 1.0 1 1 1.0 G. b c, s c 1 , 1 1.0 P. Tii 4 .1 2 2.0 7 .2 3 2.3 .1 2.0 P. ALEPUOTUS 1 1 1.0 P. D!:NPTUS 3 .1 2 1.5 4 .1 2 2.0 12 .6 8 3.0 s. AOUOSUS 3 .1 2 1. 5 2 .1 2 2.0 T. MAC ULA TUS 991 27.S 29 34.2 116H 44.8 26 62.0 4811 25.7 :n 29.6 T* liUMaEil Of TR A ill HAULS llITH SPECIES NIT* SPECI11ENSl10 HIN TRAWL IN WHICH SPECIES WAS TAKEN IA SALEH FF 1978

  • rAnLE 3.l.6a-7 CONTINUED ZOI; E N111 N\//2 Sw1 NO. OF COLLECTIOllS

.34 32 36 1;0. OF SPECIES 19 21 22 NO. OF SPECIMENS 4,099 4,010 61105 / 10 Ml N TRAWL (N/T) 120.6 125.3 169.6 SPECIES NUMBER N/T Ti< NIU NUMBER N/T T* NIT* NU!o!BER N/T T* NIT* A. ROSTRqA 22 .6 11 2.0 21 .7 12 1.8 21 .6 10 2.1 A. AESTlYALIS 4 .1 3 1.3 29 .9 6 4.8 1 5 .4 5 3.0 A. PSEL!DO,HHNGUS 4 .1 3 1 -3 4 .1 3 1.3 12 .3 5 2.4 a. 11 .3 6 1.8 23* .7 12 1.9 2

  • 1 2 1.0 D. CE ? E 0 I A>; U 'I 1 1 1.0 1 1 1.0 A. I'!

1r358 39.9 21 64.7 1.007 31.5 20 50.4 1r942 53.9 22 88.3 1. C*TUS 1 1 1.0 1 1 1.0 w I. t-.t8ULOSUS 3 .1 3 1.0 4 .1 4 1.0 1.0 I. PU'<CT A rus 5 .1 4 1.3 B .3 6 1.3 f-' o. T All 4

  • 1 2 2.0 I N u.

5 9 .3 3 3.0 lJ1 R. MA*GI '/ATA .4 .1 2 2.0 f-' s. FUSCUS 2 .1 2.0 1.0 1 1 1.0 P. 1 1 1.0 .:. v t. l C 144 4.2 14 10. 3 241 7.5 17 14. 2 378 10. 5 15 25.2 ". SLiUJLIS 4 .1 3 1.3 10 .3 5 z.o 3 .1 2 1.5 L. .*HRGCHJRUS 1 1 1

  • 0 P.

U l 5 1 1 1.0 1 1 1.0 P. FUVESCENS 1 1 1.0 1.0 P. SALTATRlX 2 .1 2 1.0 c. Rl:GALIS 11805 53.1 16 112.B 11803 56.3 14 128.8 1r164 32.3 19 61.3 L. 31 .9 8 3.9 83 2.6 11 7.s 68 1.9 7 9.7 12 *" 4 3.0 199 6.2 3 66.3 23 .6 7 3.3 P. oons 3 .1 3 1.0 22 .7 3 7.3 14 .4 8 1.8 G. BO SCI 1 1 1.0 P. OE>iTATUS 2 .1 2 1.0 1 1 1.0 s. Aauosus 3* .1 3 1.0 T. HACULHUS 686 20.2 20 34.3 548 17 .1 23 23.8 2,437 67.7 31 78.6 T* OF TRAliL HAULS Ill TH SPECIE.S NIT* SPEC lHEIJS 110 TRAIOL IN WHICH SPECIES WAS TAKEN IA SALEM FF 1978 * * * * * * * * * * * * *

  • * * * * * * * * * * * *
  • TABLE 3.l.6a-7 CON'l'INUED zoriE Sll2 IJ-1 IJ-2 NO. OF COLLECTIONS 36 36 36 r;o. OF SPECIES 23 21 20 l>O. OF SPEClMEl<S 51867 5,721 71642 SPECIMEl.S/

10 HIN TRAWL <NIT> 163.0 158.9 211. B SPEC HS NUMBER NIT U* NIT* NUMBER NIT H NIT* NUMBER NIT Tw Ill T* A. 39 1.1 16 2.4 100 2.8 13 7.7 40 1

  • 1 9 4.:.. A. AtSTIOLlS 14 .4 4 3.5 28 .8 8 3.5 6 .2 3 2.0 A. PStoUDOriARENGUS 16 .4 5 3.2 3 .1 2 1. 5 2 . , 1 2.0 A. SLPlOISSIMA 1 1 1. 0 4 .1 1 4.0 6. 1 5 .4 6 2.5 10 .3 7 1. 4 9 .3 5 1
  • a o. Ci:.PE:OIA'lUM 3 .1 1 3.0 1 1 1.0 w A. MITCnlLLI 1*503 41.8 26 57.8 1.811 )0.4 29 62.5 5 ,112 142.0 27 189. 3 c. CHPIO 6 .2 2 3.0 2 .1 2 1.0 ,_. I* CATUS 2 .1 2 1.0 I I. NtAULOSUS 2 .1 2 1.0 1 1 1.0 4 .1 3 1.3 N o. T All , 1 1.0 Ul u. ( h LJ S 5 1.0 N u. iHGLJS ., 1 1.0 R.

1 1 1.0 M. ME.\IOIA 1 1

  • i) s. f iJ s c IJ s 5 .1 2 2.5 9 .3 8 1 .1 6 .2 4 1. 5 H. AMERICANA 102 2.8 14 7.3 160 4.4 1 5 1 0. 7 234 6.5 lb 14 .6 H. SA*LTILIS 1 1 1.0 8 .2 6 1. 3 P. r, I G ACULI. TUS 1 1 1.0 , 1 1.0 P. snpr:nx 1 1 1. 0 c. MEU:.LIS 21297 63.8 19 120.9 979 27.2 16 54.4 9 21 25.6 19 1.6. 5 L. x :, T rl J ;i JS 35 1.0 9 3.9 81 2.3 14 5.8 103 2.9 15 6.:;

TJS 229 6.4 5 45.8 26 .7 4 6.5 .7 7 3.6 P. c il c., ls 14 .4 9 1. 6 28 .8 11 2.5 6 .2 I. 1

  • s G. 60SC1 2 .1 2 1.0 2 .1 2 ,
  • 0 P.

1 1 1.0 P. ALE:?IOOTLIS 1 1 1.0 i'. CEl.TA TUS , 1 1.0 3 .1 3 1.0 6 .2 4 1.5 s. ACLJOSUS 2 .1 2 1.0 T. Ml.ClJU TUS 11582 43.9 24 65-9 2.464 68.4 30 a2.1 1,353 37.6 3i. 39.8 T* NUM3ER OF TRAWL HAULS IJITH SPECIES NIT* iPEClHENS/10 HIN TRAWL IN IJHICH SPECIES WAS TAKEN IA SALEM FE' 1978 201,E IJ-3 1;0. OF COLLECTIONS 36 1;0. OF SPECIES 22 Ii 0. OF SPECIMENS 13.014 S PE C If' E t. S I 1 0 MIN TRAiil <NIT> 361.5 SPECIES IWMBER NIT ROSTRATA 20 .6 A. HSTiVALlS 8 .2 A. 4 .1 8. 74 2.1 c. CEPE.C I A>lU:I 6 .2 A. TChllll 2.586 71.8 w* c. 11 .3 I. 1 f-' 1. I; E EU l 0 SUS 21 .6 I I. 5

  • 1 N H. *" f 1, I A 1 lJ1 s. fUSCUS 1 w 208 5.8 "* PUTILIS 11 .3 P. SALTqil!X 1 c.

S 4,940 137. 2 l. 77 2.1 11. 52 1.4 P. 7 .2 ?. OEhU TUS 10 .3 s. AQliOSUS 1 T. lo\ACULATUS 4,969 138.0 T* NUHaER OF HAULS lo/ITH SPECIES NIT* SPECil!ENSl10 f-1IN IN WHICH * * * *

  • T* 13 3 3 11 1 24 5 1 7 3 1 1 16 4 1 20 15 8 4 6 1 29 SPEC!ES WAS
  • Tl\DLE 3.l.6a-7 CONTINUF.D NIU NUMBER 1.5 2.7 1-3 6.7 6.0 107.8 2.2 1-0 3.0 1
  • 7 1.0 1.U 13.0 2.8 1.0 247.0 5.1 6.5 1.8 1.7 1.0 171 .3 TAKE Ii *
  • NIT Tllr NIT* NUMBER NIT T* NIT* IA SALEM FF 1978 * * * * * *
  • * * * * * * * * * *
  • TA[l[,F, 3.l.6a-7 CONTINUED ZOkE wEST CHONllEL EAST NO. OF COLLECTIONS 246 88 514 NO. Of S?f;C!ES 35 25 40 NO. 01 SPECIMENS 461658 12,026 691409 SPEC!l'IEl1S/10 HIN TRAWL (N/T> 189. 7 68.3 11.0.2 SPECIES NUHSER N/T T* NIT* NUMBER NIT T* NIT* NUMBcR NIT T* ti/ T
  • P. MAOl,LlS 1 1.0 R. 80:.ASLlS 1 1.0 A. CJ) 'r ll: >4 Y **C riUS 2 2 .5 4 4 1.0 A. rr. OST i<: .\TA. 263 1.1 84 3.1 64 .4 21 1. 5 487 1.0 114 4 ... A. AEST l'w4LIS 104 .4 32 3.3 86 .5 14 3.1 404 .8 79 5. 3 A. PHuCOoARENGU' 45 .2 22 2.0 17 .1 8 1.1 64 .1 36 1.9 A. SAPIOISSIHA 5 2 2.s 6 3 1.0 9 8 1.1. a. T 'tie 144 .6 49 2.9 26 .1 14 .9 0a .2 48 1 .9 o. CEPEOl4'UH 12 5 2.4 3 1. 2 .. I" ITC., I LL I 15.321 62.3 169 90.7 797 4.5 63 6.3 20.743 41.9 320 oc.'" c. c .:i.

19 .1 9 2.1 6 s 1. 2 H. P*LCr.lLIS 1 5 6 2.S l. t.:. JUS s 5 1.0 8 7 1. 2 I. t1ESULOSUS 36 .1 21 1. 7 30 .1 14 2.3 w I. pu,cr &1us 18 .1 13 1.4 4 3 .7 31 .1 22 1. 4 s. I :JE If >;S 1 1 .s 2 2 1.0 I-' o. 1 AlJ 5 3 1.7 6 3 1.0 72 .1 30 2.:. I u. C t*dlS S 10 4 2.5 27 .1 11 3.D N u. OE GIUS 1 1 1.0 Ul R. l"'!."Cd'11T4 5 3 1. 7 10 .1 .6 68 .1 H 1.9 '"'" H. i'IE r.1O14 2 2 1.0 1 .5 29 .1 8 <.1 s. 25 .1 18 1.4 23 20 1. 3 ?. C.lRlJL 1 1 1-0 P. E VOL 1 1 .5 3 2 1. 5 H. 11467 6.0 107 13.7 59 .3 18 1.6 1.383 2.B 148 9.8 H. SA.&11 lLIS 37 .2 21 1.8 4 3 .7 33 *., 16 2 .1 c. S. T l 1 T &. 2 1 2 ... } L. AUS , 1.0 P. ;..*,t.UL .\ 1 l S 2 1.0 P. 2 1.0 P. FL A.-_ t. SC f fl$ 2 1.0 1 1 1.0 P. Sll 4 1.0 .6 21 20 1.1 c. H Ii'?( S 14 4 5 .. b c. RE G.l. L l S 131909 56.5 125 111.3 91881 56.1 49 100.8 25,825 52.2 252 1C6 .. S L. *1.\ \ T P'4 J 478 1.9 79 6.1 24 .1 11 1.1 565 1.1 113 S.c M. u"-::nit:,. rus 566 2.3 38 14.9 146 .a 13 5.6 172 .l 49 ?. C iil:"' IS 94 .4 42 2.2 21 .1 11 1.0 116 .2 67 1 A. GuTT*IJS 2 2 .5 9 5 1 .8 G. ilGS Cl 5 5 1.0 3 3 1.0 ?. J ii. l J. C .1,,,_ THUS 1 1 1.0 '° .1 12 .8 35 .1 19 1.9 P. 1 1 1.0 1 1 .5 4 3 1 .. 3 P. OE*T&IJS 23 .1 17 1.4 39 .1 26 1.a s. 1:;uc.s :JS 6 6 1.0 4 .6 25 .1 15 1.8 P. AMH!CASUS 1 1 1.0 T. H>CULA!US 141039 57.1 191 73.5 837 4.8 45 9.3 191043 38.5 348 57.4 h l<UHSER OF. TRAwL HAULS WITH SPECIES NIV 5PfCIHEkS/10 l'llN TRAWL %N liHICH SPEC HS WAS TAKEN I,\ SALEM FF 1973 'l'l\!11,r. 3.l.6a-7 CON'l'INUED ZONE TOTAL NO. Of COLLECTIONS 848 NO. OF SPECIES 45 NO. OF SPEC lfiENS 1281093 SPEClMEriS/10 MIN TRAWL <N/Tl* 139.7 SPECIES tlUMBtR N/T T* NIT* P. MAR!tlUS 1 1 1.0 R. BONAS US 1 1 1. o A. OXYRHYtlCHUS 6 6 .8 A* ROSHATA 814 .9 219 3.4 A. AESTIVALIS 594 .6 125 4.4 A. PSEUDOHARENGUS 12 6 .1 66 1.8 A. SAPJOISSIMA 20 1 3 1. 4 8. TYRANIWS 258 .3 111 2.1 o. CEPEDlAIWM 15 8 2.0 A. Ml TCH!Lll 36,861 40.2 560 60.7 c. CARP JO 25 14 1.8 H. NUCHAllS 1 5 6 2.5 I. CA !US 13 1 2 *1 .1 I. ti mu Los us 66 .1 35 1.9 I. PUNCTAIUS 53 .1 38 1.3 w s. FOETEtlS 3 3 .8 0. TAU 83 .1 36 2.1 u. CHIJS S 37 15 2.8 I u. REGIUS 1 1 1.0 N R. MAR611,ATA 83 .1 48 1. 5 V1 M. MUJI OIA 32 11 2.9 V1 s. FUSCUS 48 .1 38 1.4 P. CAROL ltlUS 1 1 1.0 P. EVDLANS 4 3 1.0 M. AMERICANA 2,909 3.2 273 10.3 M. SAXAllLIS 74 .1 40 1.7 c. STRIATA 2 1 2.0 L. MACROCHI RUS 1 1 1.0 P. Alil<ULARlS 2 2 1.0 P. 2 2 1.0 P. fLAVESCENS 3 3 1.0 P. SALTATRIX 30 28 1.0 c. HIPPOS 14 4 5.6 c. Rf.GALI S 49,615 54.1 426 1Db.6 L. XANTHURUS 11067 1. 2 203 5.3 M. UNOULATUS 884 1.0 100 7.9 P. CRUMIS 231 .3 120 1.8 A. GUTTA rus 11 7 1.2 G. UOSCI 8 8 1.0 P. TRI ACANTHUS 56 .1 32 1.3 P. ALEPlDOIUS 6 5 1.0 P. OENTATUS 62 .1 43 1.6 s. AO I/OS US 36 25 1.3 P. AMEH IC ANUS 1 1 1.0 T. MACULATUS 33,919 37 .o 584 55.4 T* NUMBER OF TR A Wl HAULS w IT 11 SPEC HS NI Tft SPEClMENS/10 Mii< TRAWL IN wH l CH SPECIES WAS TAK EN IA SALEM FF 1978 * * * * * * * * * * * * *

  • * * * * * * * * * * * *
  • TABLE 3.l.6a-8 TRAWL CATCH PER UNIT EFFORT (n/T*) DURHIG 1970-1978 OF THE MOST ABUNDANT SPECIES TAKEN IN 1978. A DASI! INDICATES NO COLLECTIONS.

Jan. Feb. Mar. Apr. Hay June July J\ug. Sept. Oct. Nov. Dec. Total Weakfish, regalis 1970 29.9 95.2 16.5 4.8 6.2 -! 6 1971 o.s 55.9 49.8 29.0 9.7 6.4 2.1 1972 l.O 1. 8 17.l 27.4 19.6 3.8 2.7 13.'9 1973 16.5 12. 4 11. l 6.4 5.2 l. 7 10.3 1974 l.O 1.5 14.l 9.2 6.9 3.7 l. 7 8.5 1975 2:0 l.O 77 .6 33.0 *16. 0 8.9 3.8 l.O 28.0 1976 1.0 l.l 14 .9 10.6 5.0 4.5 l.O 9.9 1977 l.O 9.0 28.5 14 .o 9.1 3.1 1.0 15.9 1978 410. 3 172.3 68.2 26.7 12.5 3.9 105.6 Bay anchovy, !i* mi tchill i 1970 13.4 32.0 92.2 29.7 46.5 35.7 12.a 5.7 4).3 1971 l.3 5.4 20.3 13.9 31. 8 96.8 66.7 35.6 58.7 .; 3 .1 1972 l.O 2.0 (8.4 51.8 22.4 16. 3 46.8 65.8 n .0 28 .4 53. s 1973 1. 6 47.5 10.9 25.8 37.2 297.8 49 .6 25.l 1.0 5 2. 4 1574 l.3 54. 7 62.7 39.9 59.6 283.9 91.3 68.8 67. 5 36.8 1.3 lG2.S 1.0 1.7 37.4 151. 7 52.8 43.4 93.0 76.3 52.3 34.2 5.( w 1516 1.0 250.6 36.8 61.5 69.3 167.1 .. 5 5.2 I-' 1977 0.7 112.2 36.4 65.3 69.6 138.l 187.4 108.0 32.7 n.o I 1978 6.3 67.4 27.9 as.a 65.2 65.6 107.l 39.2 2.1 60.7 N U1 Cf\ Hogchoker, .!* maculatus 1970 20.4 35.5 17.9 27.B 19.4 7.4 5.9 5.5 200.0 21.2 1S7l 5.a 8.9 17. 7 15.6 15.7 15.7 17.9 13.5 16.l 6.5 ! :. . 2 1972 9.3 2,0 2.6 15.9 7.1 10.3 10.7 3.o 11.4 s.a 6. 6 lS73 1.8 13.5 6.2 3.7 6.9 3.4 3.4 H.6 4.6 7. l lSH S.6 l.3 4.7 7.4 19.3 7.9 12.6 6.8 7.8 H.3 10.8 3.0 10.7 1975 1.5 2.4 2.6 5.1 18.B 17.4 16.7 8.0 23.9 23.7 17.B 9.4 15.a 1976 2.B 5.6 16.3 29.1 14 .4 12,5 10.5 8.9 7.B 7.9 l. 3 13.l 1977 l. 7 2.5 8.9 2.0 8.6 7.5 18.6 37.l 59.5 27. 2 1978 2;4 6.6 19 .3 51.3 50.5 69.l 67.5 64.7 68.9 66.2 sea White perch, .!:!* ilmericana 1970 3.3 14 .5 10.4 27.l 31. 4 5.6 l.B 34.3 38.0 31.0 2-: .0 1971 5.5 11.l 17.B 19.l 36.4 15.6 23.l 45.7 27. 5 45.5 15.4 27., 1972 8.6 16.S B.9 26.2 27. 2 30.0 so.a 13.5 4. 4 17.l 11. 9 3.9 1973 lS . .: 12.8 11.9 22.6 18.6 2.0 l.8 3.0 15.B ll.2 15.3 i.:.o la .3 14"' 10.5 7.3 4.1 2.6 l.O 1.8 7.6 13.l 7.4 lS7S 2.8 3 .8* 13.1 13.6 20.5 2.9 3.8 l.5 2.3 11.2 31.3 30.l l:L4 1>76 S.8 . 12.6 22.0 12.2 10.0 22.3 1.9 1.2 l.O 7.3 14 .9 5.3 13.0 1977 2.11' 3.6 6.3 B.4 2.8 1.0 1.0 7.4 ll.9 4.9 7.5 1978 4.l 8.7 6.4 9.4 l.B 1.7 1.0 3,1 7.3 32.3 10.3 IA SALEM FF 1978 TABLE 3 .1. 6 a-8 CO!lTINUED Jan. Feb. Mar. Apr. May June July Aug_ Sept. Oct. Nov. Dec. Total -----------Spot, xanthurus 1970 --2.0 2.0 1571 -10.0 9.B 14.9 16.6 9.9 20.9 1.0 13. 7 1972 0.7 33.4 46.7 19.2 7.5 15.5 5.9 29.5 1973 --44.2 25.5 16.6 5.1 4.9 22.7 54.5 27.2 2.0 11.3 21. 6 28.0 8.4 12.4 10.4 H.7 15.9 1975 1.0 l.l 27.2 16.6 15.0 8.0 24.2 27.3 8.5 20.l 1970 3.9 27.9 120.0 70.3 9.2 7.5 H.1 15.6 1977 -46.9 28.9 15.2 14.4 6.6 22.0 15.8 22.9 1978 ---1.8 5.4 4.5 2.4 8.5 4.7 8.9 5.3 Atlantic croaker, tl* undulatus 1970 --1.0 7.0 4.0 B?l -3.2 7.6 5.7 6.3 1972 1.0 1.0 1.8 3.4 1.0 1.0 2.2 w 1973 --1.0 2.4 5.1 -4.9 4.7 . 19H l.O l.O 1.4 2.0 2.2 2.2 4.7 2.1 1. 7 2.0 3.9 3.0 2.7 1975 4.0 l.O 0.7 l. 7 7.5 12.4 5.4 7.9 8.9 92.0 105.7 31.4 I !976 2.0 l.O 1.0 l.O l.3 2.0 1.2 41.8 141.4 27 .o 92.4 N 1977 -l.3 10.2 37.9 2.9 26.4 lTl 1978 --l.5 4.5 12.3 4.6 7.9 --.] American eel, rostrata !970 --2.0 6.1 4. 9 5.5 10.3 1.0 1.0 2.0 5.1 1971 -2.0 1.0 2.4 2.7 5.6 2.9 7.9 4.9 3.5 1.8 1.3 4.0 1972 2.0 l."O 1.5 2.6 3.6 2.8 l.8 1.0 5.2 1.8 1.0 2.5 H73 --1.5 1.3 2.7 4.9 2.0 1.0 l.l 1.3 1.0 1.0 2.7 l S7..; 1.0 1.6 1.5 2.3 2.4 l.3 1.2 1.4 1. 7 2.4 1.0 1.7 !975 l.2 l.2 l.O 2.3 3.0 1.6 2.0 2.2 2.4 2.0 l.8 l.l 2.0 1976 l.2 2.0 2.4 2.5 2.7 1.4 1.4 1.5 1.2 l.3 l.8 1977 -1.8 2.4 1.6 1. 7 1.1 1.8 2.0 1.5 1.0 l. 7 1978 --* 1.0 1.5 1.1' 2.7 4*.2 6.5 3.1 4.9 1.7 l.8 3.4 Blueback herring, aestivalis 1970 --l.O 1.2 2.0 23.6 3.0 2.0 l.O 1.0 32.9 2.6 11.1 1971 -6.0 5.9 1.5 9.1 i.1 l.S 1.3 l.O 5.3 l.8 5.2 1972 2.0 1.0 12.3 7.5 1.0 2.6 1.5 l.O 1.2 4.8 1973 --l.3 l.5 1.4 s.o 5.0 5.0 3.4 l.O l.3 4.1 5.6 1.0 .1.6 26.6 1.0 7.6 1975 l,Q. 5.1 4.4 1.1 l.S 2.0 l.3 3.7 l.5 4*.o !976 2.6 S.8 l.4 l.O 2.0 2.3 6.2 4.6 1977 -4.4 4.9 l.O 1.0 2.6 2.8 3.7 l97S --s.1 l.a l.O o.7 o.s 4.7 3.8 4.4 IA SALEM FF 1978 * * * * * * * * * * * * *

  • * * * * * * * * *
  • TABLE 3.l.6a-9 MONTHLY GILL NET CATCH, WEST AND EAST OF THE SHIPPING CHANNEL.-1978 March Api"il May June 'September October November West East West East west East West East West East West East \\est East Total No.Drifts 24 22 15 18 14 19 10 11 2 8 35 35 11 21 Total NO. Drift Hours 16.5 15 15 18 12.5 19 8.5 11 1 4 17.5 17.5 5.5 10.5 No. of 2.5 and 3.8cm Drifts 4 6 7 8 2 8 35 33 11 21 No. of Drift Hours 4 6 5.5 8 1 4 17.5 16.5 5.5 10.5 No. cf 7.9cm Drifts 12 12 10 10 9 10 3 3 2 No. of Drift Hours 8 8 10 10 7.5 10 3 3 1 No. of 14.0cm Drifts 12 10 5 8 1 3 No. of Drift Hours 8;5 7 5 8 1 3 w p, marinus 1 Alosa ';'?P* 1 I-' A. aestival is l 27 19 82 735 72 255 56 67 34 130 I A. pseucloharengus 122 18 106 52 1 2 l 3 27 14 2 22 N A. sapidissima 6 7 7 3 1 4 2 lJl B. tyrannus 4 5 747 2167 300 140 45 69 1532 999 327 441 00 !\. r.2psatus 1 ;.,,. mitchilli 4 4 1 1 s. gair:'ineri 1 c. carpio 1 1 2 I. cat us 3 I. nebulosus 1 s. marina 1 a:r.e::icana 2 l 7 2 1 M. saxatilis 4 P. salt3trix 2 2 3 22 10 17 32 26 2 5 r. regalis l 27 2 1 L. xanthurus 7 1 P. triacanthus 5 6 1 12 1 2 P. dentatus 1 'l'. maculatus 2 IA SALEM f'F 1978 TABLE 3.l.6a-10 ANNUAL GILL NET CATCH -1978 Mesh size {cm) 2.5,3,8 7.9 14.0 *Total Total No. Drifts 135 71 39 245 No. Drift Hou:cs 78.5 60.S 32.5 171.5 n per n per n per n per n per n. per drift drift drift drift drift drift Soecies n hour hour* n hour hour* n hour hour* P. rr.arinus 1 + 1.0 l Alosa spp. 1 + 1.0 1 A. aestivalis 1,427 18.2 28.5 51. 0.8 3.9 1,478 A. pseudoharengus 70 0.9 3.7 299 4.9 12.*5 1 + 1.0 370 A. sapidissima 9 0.1 1. 3 2 + 4.0 19 0.6 2.4 30 B. tyran!lus 5,526 70.4 71.8 1,175 19.4 46.1 75 2.3 15.0 6,776 A. hepsetus 1 + 2.0 l A. mitc!1illi 10 0.1 2.2 10 s. gairdneri l + 1.0 l w c. ca::pio 1 + 1.0 3 O.l 1.0 4 I. cat us 3 + 1.5 3 f-J I. nebulosus 1 + 1.0 1 I s. marina l + 2.0 1 Vl M. america?ia 11 0.2 1. 7 2 0.1 1.0 13 l.P M. saxatilis 1 + 0.5 3 0.1 1.5 4 P. saltatrix 97 1.2 3.2 24 0.4 3 .*4 121 c. regal is 31 0.4 4.1 31 L. xanthr.rus 8 0.1 2.3 8 P. triacanthus 27 0.3 3.9 27 P. dentatus 1 + 1.0 1 T. maculatus 2 + 2.0 2 8,884
  • number of specimens per drift hour in whieh the species was taken. + = n per drift hour less than 0,05. IA SALEM FF 1978 * * * * * *
  • J * * * * *
  • w . f-' I N O"\ 0 *
  • Mesh Size (cm) Month Week No. of Drifts
  • No. of Drift Hours Alosa spp. A. aestivalis A. pseudoharengus A. sapidissima Size (cm) Month Week No. of Drifts No. of Drift Hours A. aestivalis A. pseudoharengus A. sapidissima Mesh Size (cm) Month Week No. of Drifts No. of Drift Hours A. aestivalis A. pseudoharengus A. sapidissima
  • * * * *
  • TABLE 3 .1. 6a-ll WEEKLY.

DRIFT HOUR ( nlDRIFT hr), OF. ALQSID SPECIES BY*GILL NETS, -1978 March 19-25 "26-31 8 16 4 12 0.1 0.5 11.5 March 19-25 26-31 4 18 2 13.5 2-8 8 8 0.3 9.0 0.1 2-8 7 7 0.3 April 9-15 16-22 8 4 8 4 0.3 1.1 8.8 9.6 2.0 14.0 !>.pril 9-15 16-22 4 2 4 2 0.3 1.3 3.0 7.9 May 7-13 21-27 28-31 3 8 8 3 7.5 7 0.7 0.3 0.7 0.3 May 7-13 21-27 2 2 2 2 2. 5. and 3.8 June 4-10 6 6 May June October 21-27 28-31 4-10 11-17 25-30 8-14 15-21 22-28 4 6 8 3 4 18 31 17 4 6 7.5 3 3 9 15.5 8.5 185.8 11. 7 38.4 13.0 0.1 1.5 11. 3 0.2 0.1 1.0 0.6 1.2 2.0 0.3 0.3 0.7 0.3 * * * ** October 8-14 2 l 29-31 1-4 5-11 12-18 19-25 2 6 14 6 6 l 3 7 3 3 2.0 13.7 13.7 7.0 2.0 0.7 2.6 0.8 0.3 IA SALEM FF 1978 Appoquinirnink Creek St. Georges Creek (SlJA) 0.1kwood OcJth (OOSA) Miles 0 I 2 I I I I 0 2 3 Kllom*t*rs ...... .. : .., .. Trnwl Zones .. y Seine Stations ll i a IRiver trawl and seine locations-1978 tj PUBLIC SE:HVICE J.::Ll-'.C'l'rUC Mm G,\3 cm!P,U:Y. r: I SALEM NUCU:,\H GC:NEHATING STATION Figure 3.l.6a-l 3.1-261 * * * * * * *. * * * **

  • J
  • * * * * * * * ** **
  • MHC8 SSC6 HOP7 SGB2 AUB3 ------**-OB5.A ELP5
  • PHD1 IREl4 ST3A l I *similarity of seine catch PUBLIC J::LEC'l'r.IC AND GAS cmtPANY three component axes based Si\l.CM NllCl.E.\H GENEHATING S'l'A'l'lON composition

-1978 Figure 3.l.6a-2 3.1-262 on on t1rst. specie: l I 3.5-3 2.5 1.5 1 Atlur.ttic silverside I + + I I I I I I I I '; I Legend " Upper runi::c + Ona :::stundurd deviation x -----*-------- + Ona stundard b. Lower rungc *' /\. ____ ,,,. / "' / \ ,,, \ \ \ \ \ \ \ clcviution -G.5 --...--.---...--...---*-....---,---,-i-i*---.---,----... J F A 1vl J J A S 0 N D J ji PLJlll.IC 1\l\'D Gi\S j silver.side by seines -1978 . fl NlJCl.l:,\J: Cl;;"-lJ:E,\TlNC ST1\TlON

  • -----------)

ft f! Figure 3.l.6a-3 J 3.1-263 * * * * * * * * * *** ** I I

  • tG l
  • AEEDI JSUH/O (GJ flUGUSTir<E

[JEflCll (())

  • snH GREEN'S BEnCH (6)
  • PEflCll llOUSE D ITC!l (() l .* omrnooo BERCH w J ELSINBORO POINT (6)
  • SUNKEN SHIP COVE (6) llOPE CREEi{ (())
  • Mno liOASE CREEi{ (6) LEGEND * -95,. x + 95,. Cl -SD I Cl MIN. I I I I MAX. RANGE RANGE ** l'UJJLIC SLmVICE AND GJ\S SALE:M NUCU:,\H CE:Nl-:l(J\'l'ING
  • o,_. :_*i2 ___ 0'-.

__ 2_.._2_2 ---'2. 11s II 1--II **0.31 o.J2 o.'I:; 1.!;n 2.n 2.US nTLnNTIC SILVEnsrDE -SPHING Seine catch statistics of Atlantic silverside in spring-1978 Figure 3.l.6a-4 3.1-264 l I

o.n o. qs I. 2.22 ST. G[Onr.r:s r:nr:rn CG J nr:rnr r st.nNo WJ nuGU5TINE !3EnCll (!,;) lf=!=H srrn GREEN *s BEnCli (6) II II PEnCH HOUSE DITCH (GJ F=:-d::=-------D ORKHOOD BEnCli (6) ELSINBORO POINT (6) SUNl(EN Sli!P COVE CSl H llOPE CAEEI\ (6) MnD llORSE r:rir:rn 16) 11r=====t==-----=ii LEGEND I -?5" x +95" Ii. Cl -SD---1--rSD Cl -0. 31 u:os i:!)9

  • nTLnNTJC

-SUMMER 1 Seine catch statistics of PUJlLlC t:I.tcrnrc AND CAS CO\\I",\;:y silverside in summer-1978 2.US Atlantic >> "'11' I l'lJ'"l l'\l' ('l'"l'l'\""'!N'" <"I"'""O I l' l)I\ 1,..,,1 \. J'..;\ ,\./ 1 J l..J .:J 1\{I ;**-----* ------------------- ! Figure 3.l.6a-5 3.1-265 * * * * * * * * * * *

  • * * * * * .* * * * ** * !JT. GEOflG[!l nr:rn'f !SUHW (S) OUGUSTINE

[JEflCll (SJ snM Gf1EEN'S [J[flCJI (SJ PEflCll HOUSE D ITC Ii (5 l ornrnoao BEnC!f csi ELSIIWOAO POINT (SJ surmrn SHIP COVF. (SJ HOPE CREEi( CSl Hno liORSE CREE!( (5) LEGEND -95% x +?5"" Cl -SD MIN. f==-f RANGE I +SD Cl I I MAX. RANGE PUBLIC s1mv1rn ELEC:'J'R!C AND GAS SAU:M Nl!CLE.\H GENEIIATING STATION f--;1==-==!----1-1 --1-:1 IR==tl. 1c==1 1Fl=H -o. 31 a. 3;! o. qs 1. sq 2. 22 2.us *nrLnNTIC 5ILVEnSIDE -FnLL ' Seine catch statistics of Atlantic I silverside in fall-1978 Figure 3.l.6a-6 3.1-266

  • Legend * 'V Upper l"Hllf*.c

+ One :il1.1mlnrd dcvintion an.cl:1ovy

3.5 X Mc1m . -------------

+ One ::;lt.tndard dev in ti on

  • D. Lower rnngc 3
  • Z.5 '1 I. A -0.5 D J N J J J lvf F A s 0
  • r abundance of bay anchovy 1 1: l'UJll.lC 1:u:crnrc Al\D seines -1978 I 11 u NUCLl:,\11 ST,\'t'lDi'\

1; !1 Figure 3.l.6a.-7 K J

  • 3.1-267 *
  • * * * * * .*
  • I * * ** * -0.5i 0.09 0. 1l 1. :1G I. '1'1 2. r,2 ::ir. GEOf\(.('5 r:r.r:rn ([)) fl[f'DI J SLntlO (Ci J nUGUSTINf.

!3Eflcti (fj) snM Gl1EEN 's BEnCll (G) PcnCH HOUSE DITCH (6) ORKHOOO BERCH (6J ELSINBORO PO !tlT (6 l SUN!(EN SHIP COVE (6) HOPE CREEi< C6l HnD HORSE cnEEK (6) LE CE ND -95" x +95" Cl -SD I +SD Cl MIN. I I I I MAX. -0. 0. 0. "/2 I. ;JG . I. 'l9 cmr nt-JCllOVI -SI' fl ING 2. GZ RANGE RANGE Seine catch statistics of bay PUJJLJC EJ.EC'l'n!C Al'-:D GAS anchovy in spring-1978 SALEM Nucu:,\H GENERATING STATION Figure 3.l.6a-8 3.1-268 1 I I

  • * **ll. Cl. 0.'12 I.% 2. G2 * !lT. r;r.ORGES CflEEI< CG l IE-----=J:_---11 flEED'J' I SLnND (G l 1r=1 =====tl-=======i11
  • RUGUSTllff

!lEnClf (SJ -* snH GREEN'S BEnClf ((;) PEnC!i HOUSE DITCH (G l

  • onKHOOD BEACH (6)
  • ELSrnBORO POINT (GJ H il sutmrn Sil! p COVE (5)
  • HOPE CREEi( CGJ
  • HnD HORS[ cnErn (6) LEGEND -?5l< x +95r. Cl -SD -j +SD Ci f--F 1--i--\ MAX. Rt,NGE ..

.. -.,-2 l: 3r,

  • i. ns Llrn nt<CiilJY)'

-SUMML.:fl. d 1; f!,I:**. Ii RANG< :G. G2

  • H I Seine catch statistics of bay ,
  • J'UJ!l.!C I::I.I*:crnrc M!D CAS 1 , anchovy in surnmer-197?
  • f .. :: !I'"

\I) C'l*"""l' \1" <"J'\'l'ION ' j _ * "'" , ,,,, , \,_, .... * , ,,\1. ,, "'\J ,, , . _______ F_i_q ___ u_r_e--3-.-l-.-6-a---9--------) 3.1-269 *

  • * * * * * ** * * * ** * :; r. f,1'.D11cr.s r.nrrn t'.i J p,ffOY l'.iUWO t'.:il nUGUSTINE BEOCH (5) snH CflEEN.' s BrnCH ('.:i) ' PERCH HOUSE DITC!! t5l ORKHOCO BERCH (5) ELSINBOHO POINT (SJ SUNKEN SHIP COVE !Sl HOPE CREE!( (5 l HnD l!CJHSE CREEK CSJ LEGEND -95:< x +?5:< Cl -SD I +SD CJ MIN. I I I I MAX. RANGE RANGE PUBLIC t:LECTmC .t\ND G.t\S S/\LEM CENEl\ATING

..l).!l'I r, 2 1--=:.:-.::----*l*--.-------=.1=1 IH--H I ' I 11 I I -o. 0. CS 0. '/2 I. .JG 1. 'l9 2. G2 13fll flNCllOVI -FnL.L Seine catch statistics of bay anchovy in fall-1978 Figure 3.l.6a-10 3.1-27-0 3.5 3 -Z.5 1.5-1 -0.5 Atla.11t:i.c rn.e11l1ade11.

  • 7 . *!\ I \ I \ l \ I \ I \ I \ . I I ' , Legend '\/ Uppc!1-rungc + One ::;tundurd elev iulion X Mcun + One :;lnnclurd dcv in lion .6. Lower rungc *.. J/ .... --, 0
  • --,_--

+ + -0.5------i--i--.,,-1-T---i**-

.-1--,----,-,---r-1*--.,--1--,1--i J F 11 A 1([ J J A S 0 N D J f,!Aii '-----,------*---Temporal abundance of Atlantic 11 1*u11uc t:I.J:crmc AND CM: cm11*;.,n' ii menhaden by seines -19 7 8 i . lj i !:

S'L\TJO;*i i;..* ---------------------u I Figure 3.l.6a-ll ! 3.1-271 * * * * * * * * * * * ** *

  • * * -0. 4'1 I I ST. GCaf'.GCi r.p.[E!( CGJ I ** rin:or l :.iUHID (G) nUGUSTINE

£JEnCll (6)

  • SOM GREEN'S £JEnCli (6J
  • rrncll HOUSE DITCH (6) .* OOKHOOD BEnCll (6l ELSifWORO f'DIIH (6)
  • SUNKEN Slllf' COVE C6J llOPE CA EEK (6 J
  • rrno 11ansE en EEi< w J LEGEND *
  • 95,. x +95l' Cl -SD I +SD Cl MIN. I I I I MAX. -o. 49 0. CS 0. 1. l 2
  • I. GS flllflNTIC M[NllnOEN

-SPl1ING l 9 RANGE RANGE ** ; Seine statistics Atlantic l catch of l'UllLIC AND GAS menhaden in spring-1978 NUCLl:.\11 ca:NI::llATING Figure 3.l.6a-12 3.1-272

  • flEED'f I SL.nND (6 l RUGUSTI nERCll (5 l snM Gfl[r-JJ'S

[JEnCll (G) PEnCll HOUSE DITCll C5l ELS I N(30fl0 PO INT (GJ SUNl\EH SllIP COVE CSJ HOPE CRf.EI{ CGl HnO llOfl'..iE CP.EEI\ (G) LEGEND l -95,r. x +95% !*, Cl -SD I +SD Cl : MIN. f==--f===r==t:==J l.1AX. __ A __ __ l'-1 ====l-===i1 IFI ::=:::::::::::!=1--=-::=--=--=3::::::::1LI __ H

  • z.1n fl n.nNT I c MENI inorn -!iUMMf'.fi
  • * * ** * *. * *
  • _S_e_i_n_e

__ c_a_t_c_h

  • -s-t_a_t_i_s_t_1_*

_c_s_o_f_A_t_l_a_n_t_1_* -c--,1 1 J. 1*un1.1c 1:u:crn1c GAS C:O\II;:..;-;y j menhaden in summer-1978

  • :si\1.1-:1.t NUc1.1:,\i(

sT,\Tto:*i !

  • 1 j t_ Figure 3.l.6a-13 j 3.1-273, *
  • Legend V Upper ranr,c: + 011c dcv iution ** X Mc,1n -------------.--

M*urnmicl1-og 3.5 + Que ::.tun<lurd dcviutiou A Lower range *3 * .........

  • .-4 + 2 :>< ......... 0 ...... S-c l5 0 * 'H 'H <I) ............

..r:: 0 1 <t1 u

  • 0.5 / ' / ' / ' I --*'
  • 0 + + + + + + + + -0.5-* J F M A M J J A s 0 N D J Temporal abundance of mummichog by ** PUBLIC s1mncE i-:u:c.*rmc AND CAS cmtPANY seines -1978 SAl.J.::M NUCLl:.rn GENJ::HATING Figure 3.l.6a-14 3.1-274
  • ST. GfOHGE5 rnErK CGJ IE----1 m:r.or ISL.mJO CGJ II nUGUST!NE DEnCll CGJ II "31 snH GREEN'S oEnCH (Gl PEnCI! HClUSE DITC.H (6) Cln1rnooo BERCH csJ llF=:=+/-====:L_

El.S!NDORO POINT (GJ n===l===ii SHIP COVE (GJ HOPE CflEEK (6) HnD HORSE CRECK (GJ LEGEND -95" x +95" c 1 1 -SD Cl 11.:N. t===t==: 1--:=J MAX.

    • O.o2 o'.12 i.co L'"' t.e*1 RANGE RANGE I PlJJ1LlC SlmV!C:I':

ELI:crrm: i\l':D GJ\S ".* MUIHllCliOG -'.Jl'fl!NG Seine catch statistics of murnmichog in spr.ing-1978 f f, ll Si\L!':I.! Nl!CJ.l:,\11 GI:NI:HA'i'INC S'J'/\TION L Figure 3.l.6a-15 3.1-275 * * * * * * * * * * ** *

  • * * *' *
  • i* * * *
  • n.

cnrrn !GJ f1C'EDY I '.iLntW ffi J nUGUST I NE !lEnC!i (5 J SRH 5EllCll !G J PEnCll liOUSE DITCH 16 J an1rnaao om CH 1s J ELS!NOOflO POINT 16) SUNKEN SHIP COVE !SJ IHlPE CflEEI{ 16) HRD t!ORSE CflEEI< !GJ LEGEND -95,. x +95,. Cl -SD I +SD Cl II.IN. t-=-£----.1 I MAX. RANGc RANGE I[* .. -------!:- JL -------1-----***'=1 1*-----1=====:u_ 1--:i=1 ======-!--- 1-:::l 11--=:d--11

    • O. ;J2 a. 12 a.
1. co . 1. H MUMM! ClllJG -SUMMrn l. IJ"/ Seine catch statistics of rnumrnichog PUHi.iC 1-;1.1-:C'l'l"\[C AND CAS I in surnmer-1978 SALEM NlJCLl:,\J( c;i,;,'H:ltATING Fiqure 3.l.6a-16 3.1-276
  • -o. n. 12 o. 1. no 1. 44 1. u*1 ..._ __ _, ___ _,_ ___ ____. ___ _._ ___ ,
  • ST. r.r.onr:;r::;

rnr:r-:1c <5 J IF..BL flf.ED'f I!iLntJO C5J IFBL

  • nUGUSTJ NE ncnCH cs) ** snH GflEEN *s !3ERCll CSJ PEnCll llOUSE DITCH CS l 11 H *

!3EnCH ISi

  • ELS Itrnono PO J Ni cs) SUN.J(f.N S!lIP COVE (SJ 1F.33L * !lClrE C11f.EI( CSJ
  • HnD l!ORSE rnr.rn (5 l H====1==:::::::11.:::::::Lf_

LEGEND Cl s1 --0 .. /:-X. **O. n 0.12 0.:1G I.CO . I. H MUlll!!CllOG

  • -f'f"ILL I. U'/
  • RANGE RAf*JGE i Seine catch statistics of mummichog ti l'Ull!.IC EJ.l:CTIUC Al'!D GAS CO\JJ',\W1" i !i lj.! in fall-1978 I_'., I* ;;AU:\! NllC:Ll:,\11 CENl:llA'J'INC S'J',\'J'ION I )! .r-..

i"'"g-. -u-re . ....,.,J-* ....,..-.... 3.1-277 *

  • I I SSC SW2 NEl
  • SE2 SE1 W-1 I Rl1 SE3 E-2 SVV1
  • E-1 CHA1 .CHA2 i CHA4 E-6 CH.L\3 I l CHA5 Rl2 I NE2 * .sEol NW2 E-3 . i E-4 I
  • 1 w-2 NW1 I ' -* I f\ -I ;* llE-5 I
  • II W-3 * --I -**
  • of trawl catch on first 1 1 PUJJLIC sE:r\VICE 1*:!.ECTmc M:D GAS cm11'M!Y cornponen t axes based on S,\U:M GENERATING STATION 1cornposition

-1978 __ 3.1-278 *

3.5 3 2.5 -. 2 1.5 1 0.5 LcGcnd \l lipper ruur,c + Ono ::;lundnrcl iu lion >< Meun V\T eo.l\: :Eisli. -*------*------

I I I I I I I I I I I I I I I I . "/ ...... , \ \ \ + b. \ ., \ One ::;tunclnnl Lower \ \ ro.ngc \ \ \ \ I , I dcv in lion 0 -0.L> - 1-1-1 A Jv1 J J A s 0 N D Tempo r a 1 a ... -,e-a_k_f_i-*s-h--b-y--* "11 t l'lJJ1l.lC

381,VICJ.;

l:!.l:C'rmc Ar'.D CA:.: r, trawl-1978 \i . I S/d.EM ;*:lJC:J.l:,\I: GL'il:l11\Ti:!G '.i'J',\TIOCI f I' __ 1! t,__ _ __ _____ _, 3.1-279 * * * * * * * *

  • e: *
  • * * * * * * * * *
  • F r: R I 111Jr111111c.c;r m:c1014 tcil Cl'iJ1f1rll.-11[S 1 flEG

((j l 30UT/iHEST -flEGION (Gl trnnrn rnnNNEL REGION (6} SOUTH CHf1NtffL flEG I ON fG J NORTllERST AEGION (GJ CENTP.fll.-EnST flEGION CGJ SOUTllEnST REG ION CG l LEGEND -95,. x +95,. Cl -SD I +SD Cl MIN. b---1,.--+--il I MA x. RANCE RANGE ---, ! 1.'1 1."11 2.31 2.0il 1,----l----,1 1--*--l---1 II---r-I --ll u==t==3 1.11 1.*11 2.J1 I :iii -

2. 'll Trawl catch statistics of weakfish in sumrner-1978 I I l'LJJJ!.IC smvrrn i\ND c;M; cmtPANY
  • Si\Ll::M NUC!.1:,\11 GIO:Nl-:11/\T!NG 3.l.6a-20 3.1-280
  • * * **ll.M I.II 1.*11 2.!11 IJOnTJllff!.iT nr.GIOIJ (fj) lf:*---l--*=i1 CENTnnl.-1-:EST REGION lGJ
  • SOUTllHEST (GJ NORTH CllnNNEL REG! ((j l
  • so urn CHmHJEL REG JON ((j) *. NORTHEAST REG!Oli ((j)
  • CENTRfll.-ERST REGION CGJ 11--1 :=JI
  • SOUTIH:flST REG JON lG J 11-d--11 LEG[ ND -?5,.. X +95r-c1 -SD__j'._.

+$D Cl :--F-1-===t-=--i

z. 81 -C. C:J
l. ll 1.*11 I 5!l --fnLL 2. o I MAX. RAl-<GE R;\N::..;t
  • _J !.---ij Trawl catch statistics of weakf.ish Ii .! l'UJlL!C M:D GAS CO\l'i":*r:Y -*
  • in fall-1978 f, . ' S/d.1::!.1 r-----------d

___________ _, 1 __ _. ____ 3.1-281 *

  • * * * * * * * * *
  • f. I I Lcg8ncl V Upper rnngc + One! :.il11ndonl elev ialion I 3'" .;J J3ay a11ctto*vy X

+ One ! I .6. l owcr ntllf'C '7 \7 , '7 3 7 '7 '7 2.5 . ----..--i + 2 ......... -t:D -0 .... r-i _,_ +> i-.* 1.5 0 17 'H 7 '+-t CJ) ........... ,.q u ', +>. 1 cd C.,) ' ,, . ' --I "\, ,,, I'-... ..... ... , "\, .... '/_,. \ I "\, / ",_ ---i' \ I '\,. / '[' I , I I I I \ 0.5 I \ -I \ I I . . -I \ 0 -+-------',:< \ .. '/ _,. ...,i' .. -" ... --t.. + + -0.G ** -*--,.----,,---.---,---,--,--,----,---..,----,.---.---,.---, J F :M A M J* J A s 0 N D J ll Temporal abundance of bay anchovy PUllLIC s1mv1rn J.::LECTJ([C AND GAS by trawl-1978 SAJ.E:M NllCLJ:,\H GENJ::llJ\TING STATION Figure 3.l.6a-22 3.1-282 I_ 1rnnTllHCST m:GIDH ((j) crnrnm.-HEST flf.G!CtJ (()) SOUT!trlEST REG l ON (6 J l<Of1Tll C!lnWJEL nEG l ON (6 J CHRNNEL P.EG !ON (6) NOflTHEnST REGlON (61 crnrnm.-EnST RF.GJON (6) sournrnsT f1EGJON tGJ LEGEND MAX. Rt-t--iGE

  • -0. I 9 II.------t----IJ_

11--------l:-======:::==i1 It== ------=t-J II ll -0, l 9 0.3U 0.C)£i 2.10 2. en l'.flY f!NCll(')VY -'.:.>1'11 I t*lG i ----*-l Li ' R u 'I'rawl catch statistics of bay l'UJJLlC i:1.r:crn1c M:n c,\S anchovy in spring -1978 t <*"I F'I '*'l'"J J'\I.' Cl*'\*'l'l\Tl'*"' '*"l"*TIOC-1 .... J,Jl., ... ,. _,4,J,\., i\\,.J .. )J, j Ii Ii Figure 3.l.6a-23 . .B 3.1-283 * * * * * * * * * * * *

  • * * * * * * * * * **
  • SOUlJll*lE:H HEG!ON (Gl NORTH CllflNNEL AEG!CN Wl "SOUTll CHANNEL REGION (GJ NOATliERST REGION (SJ crnrnm.-EflST REGION (Si SOUTllEnST REG ION W l 1.
  • 11. LEGEND -95" x +95" Cl -SD I +SD CJ MIN. f=-=ji---+--+-1--'i MAX. 0 * .:HI o'. '1G I.
  • 2. 10 '[3RI nNCllL'.lVI

-5Ul1111'.ll

2. GB -o. 19 RANGE RANGE Trawl catch statistics of bay l'UJJl.IC J\ND c;,\S anchovy in summer-1978 SALEM NUCl.J*:,\11 STATION Figure 3.l.6a-24 3.1-284

-o. J!l a. n. *w 1. s:i 2. 10 2. r.u tJllr.TllHr.:; 1 fl[G IDIJ [G l I I crnrnnL-HEST nEG!Oli [6l SOUTtiHEST REGION WJ II II NORTll CllnNNEL REGION (6) t:d--:-3 SOUTH CHnNNEL REGION WJ II H I NORTllEflST REGION [GJ I I CENTnnL-EnST REGION [GJ I I SOUTllEnST REG I ON (G) II ===H LEGEND -?J" x +95% Cl -o. l 8 O . .:lll 0.% 2.lC 2.GU fl(I"( fli'JCllllVY -FnL.L. c: -SD * +SO //,Ir' L__f.-! -1 __ . J. I RANGE ri-__, ;, I Trawl catch statistics of bay 11 PUJlLIC Q1*:11v1ci:: J:I.t:CT!i:lC ,\l\J) GA!'> fl anchovy in fall-1978 ii lWCJ.l:,\l! Cl*::H:J!,\"i'H:l; . r Figure 3.l.Go-25 -----.*----------_, 3.1-285 * * * * * * * * * * ** *

  • r
  • II ll n ,, I * !I e I * * .* * * * ** ** 'V Upper n111gc + One :1Lt111durd dc!V itilion

-... } ' u ' (: -* .. 6 "-'*-*-.J.\. -"* + O"w 0l.1.1r!.dnrd d.cv it* , . .cion 3 -2.5 -17 ....--. "T""i + 2 -x '-" bJ) 0 ,_, ..fol i--1 1.5 0 -'H 'H Q) "'-..... ,..cj (.) ..fol ro 1 -(.) 17 -0.5 -'v , t-/ / / ' /'" / / , 0 ,,, ... I + T + -I I I I -0.5 J F A M PUlll.lC SC:lff!CJ:: t:I.I*:C'ff\!C i\l\'D GAS NlJCLt:,\11 S"J'ATlON Lower run go 17 '7 *7 7 -. -*. *-.:-.; 1, , -' ..... / ' / ..... / ' / / --/ / / / ,,/ ,, . , --;.. L ' ... + I I I I I I I J J A s 0 D J Temporal abundance of hogchoker by trawl-1978 Figure 3.l.6a-26 3.1-286

  • -0.:::*:..:1.;.4

_ _:,o . __ _.o._'l_:; __ 1 ....... _!>n ___ 2.._. o_s __ _,z. !>!I trnnTllHE!iT nrr;roN C6J If ----'-:t:_=_=_=_=:_=:i..11._ Cf.NTnnL**HCST f\EGION ICil I! !-II SOUTllHEST nEGION !61 NORTH CHnNNEL REGION C6J SOUTH REGION CSJ trnRTHEnST REGION (6) II II CENT11nL-EnS T REGION (6) I! SOUTllEnST REGION (6) H-=--J LEGEND -951' x +9.Sl' Cl -SD I Cl -o. 14 0.1,1 0.% i. 2. 05 !.19 U.!N. ! I ! l /.\AX. I IOGCI !O!H:R -

  • RANGE RANGE Trawl catch statistics of hogchoker PUllLlC ::>Eiff!CE Ll.ECTH!C AND GAS in spring-1978
  • * * * * * * * *
  • SALE!.! NlJCLl:,\n CENEHATING ST,\TION
  • Figure 3.l.6a-27 3.1-287 * ------------
  • *
  • fH'GIOll ('.)) 1-r-=-:)_===H
  • HEG! ON (GJ SOUTliHEST flEG!ON l6l Fd-L *
  • Nonrn CHANNCL AE.G! ON (G) .* SOUTH CHANNEL flEGION (6) I .
  • NORTHEAST REGION l6l CENTRnL-EnST REGION (6)
  • SOUTllEnST REG ION (6) LEGEND * -95,. x +95" Cl -SD I +SO Cl MIN. I I I I MAX. **O. l4 o. 41 0.% I IOGCl!Ol{f:R
1. !JO :.!.

RANGE RANGE ** Trawl catch statistics of hog choker Plllll.IC AND Gi\S cmll'ANY in surnmer-1978 SALEM NUCI.E.\11 ca:NC:Hi\TING S'l'ATlON Figure 3.l.6a-28 3.1-288 *

  • * -o. i
  • o. 41 0. '15 I. !JO 2.05
  • nr.GION ((j) 1r=1 =====3======i11 CENTnnL-HEST REGION ([j)
  • Sl'lUTl!HEST REGION ((j)
  • NOflTH ClffHlNEL REGION WJ II II
  • Sl'lUTll c1rnN1;EL flEGJON (6)
  • NORTllEflST REG!Clli (6J
  • crnrnnL-EnST REGION WJ
  • SOUTllEnST REG!llN (6) LEGEND * -0. l4 o. *t l 0. l. !)O HOGCl!Ol\Efl

-Fnl.l. . 2. 05 -?.!i'lfi x .Y95}t Cl +SD Cl MIN. t=::-f=;------,---+-j --<] MAX. RANGE RANGE catch statistics of hogchoker1* .. in fall -1978 .. .ml.Lai NUCLJ.,\h C.L.,J*.l,J\1 !"(, ,-,JAi 10<<

  • figure 3.l.6a-29 3.1-289 *
  • * * * * .* * *
  • I :3.G 3 2.5 .........

..--i + 2 ...___, b.D 0 .-. +' >-. 1.5 0 'H 'H Q) ......._ ..0 ("j +' 1 <O u 05 0 -0.5-J F M

  • t II\ \'"l "] C:, V I .L ... L 1,., \:_, .¢--'\ ' ,, \ ,, ! --.. + + A M J Legend V Upper rnur;c )< Menn 6 Lower I I I I I I ' _, ./ ./ " I -..... ./ *---

,,. + + + + J A s 0 N D J

  • 1 I Temporal abundance of white perch by'
  • PUDLIC J::l.I*:crnrc AND GAS trawl -1978 S1\l.l::l1!

NUCLI:.\H STATION ,._. Figure 3.l.6a-30 3.1-290 * . 1rnrm1HEST nr:r.JCll tr.I CENTnnL-HEST HEG!ON !GI SOUTllHEST HEG ION (6) NORTH Cll!1NNEL 11EGJ()N £61 sourn CllRNNEL REGION (6) NORTHE!1ST REGION 16) CENTRAL-ERST REGION (6) SOUTllEnST REGION CGJ LEGEND x Cl -SD I MIN. b=-J RANGE .. 95:-+SD Cl I I MAX. RANGE 1\ PUJJLIC AND GAS i !1 SALE/..! N ucu:.\11 GI::Nl:l\A'l'INC STATION ' * *

  • F=J==J
  • Jlll==t::::.:::=:i1L
  • * *. II * * -u. '15 0,f,3 1.C'/
  • 1m 1 n: rrnrn -3Pn 1 NG Trawl catch statistics of white perch in spring-1978 . ** " Figure 3.l.6a-31 3.1-291 *
  • * **O. ll. l'l 0. \. r.*1 l. l. 'l4 1-'-E:::=t:l--=::=:=1=H::L
  • IH':G!ON (6) SOUTllHEST llEGION C6l *
  • I/ORTH CHANNEL f!EGION CSl .*

CHANNEL REGION (6)

  • NORTHEAST REGION (6J CENTRAL-ERST REGION (6)
  • SOUTllERST REGION (6) LEGEND * -95,. x +9.S" Cl -so I +SD Cl MIN. l I I I MAX. -0 .. 1,5 a. 19 0. c:1 I. C"I I. Hlf ITE PERCll -SUMf*IEn I. RANGE RANGE Trawl catch statistics of white
  • PUBLIC AND GAS perch in summer-1978 S/\Ll!:M GJ.:NEHATING STATION Fioure 3.1.6a-32 3.1-292 *
0. ll. (iJ I. 0'1 I. !;O
  • uar.T11HE:1 T fl[G I ON ((j) IE II crnrnm.-HEST P.EGICN (fj) ll
  • Sl'JUTllHEST flEGION (fi l
  • NORTH Cltnt<NEl.

REGION (6)

  • SOUTH CltnNNEL REGION (6)
  • NORTHEAST AEGJON (6) H I!
  • crnrnra.-rnsr AEGil'JN csi
  • SOUTHEnST REGION Cfil LEGEND x *95" Cl Cl MAX. -0. 0. I g C. G:l l. C'/ HllITE rrncti -Ff1l.L I.
  • MIN. RANGE RANGE Trawl catch statistics of white l'UlJLIC SF:llV!CE L:l.ECT!\iC Al\'D GAS perch in fall-1978 SALEM NUCL!:,\li GENI:l{ATING I Figure 3.l.6a-33 l ** 3.1-293 *
  • Legend v Upper rnugc + One ::;lttndnnl dov iii lion S1Jot x Menu 3.5 -..
  • + \!nc :slnndunl i<L lion £:,. Lo.war rnnge 3
  • Z.5 * ........ ..... + 2 x ...__, a.o 0 ..-4 .* .. 1.5 *-l a 'l-1 'H Q) .........

,..q 0 1 ro u ** 0.5

  • 0 + + + + + + -0.5-* J F M A M J J A s 0 N D J Temporal abundance of spot by PUIJLIC J::l.ECTH!C AND GAS cm1PANY trawl-1978 SALEM NUCLJ:,\I?

Gl::NEHATING STATION Figure 3 .1. 6a-34 3.1-294

  • 0.1... ___ o.._. :1_*1 ___ _.o._c;_s

__ u ....... _q_:i --"'1. i1

  • IJOf!TllHCiT flEGIOIJ HEGION !Gl -11!E==l:===::31L
  • SOUTllHEST REG ION ((; l
  • NCIHTH CllfWNEL REGION 16l
  • SCIUTll ClifllWEL AEGICIN C6l ** NCIATHEAST REGION CGl
  • CENTAnL-EnST AEGIOK CG)
  • SCIUTllEnST HEG ION (6) 1-l-----=J LEGEND -"% i ""% Cl -SD. 1 +SD Cl It.IN. f=-::{=F=-J-------j MAX. RANGE RANGE I
0. {)9 0 GS . o,qj SPOT -sUMMErl -o. )9 I. 21 * ; . I Trawl catch statistics of spot in SEllVICE ELEcrnrc AND GAS cm1P,1.:-:y summer-1978 1

NUCU:,\li GENEllATING S'J',\'J'ION . f Figure 3.l.6a-35

    • 3.1-295 *
  • llO!IT!IHE'..iT llEG!(JN Wl IE----....::!-:--
=LI, __
  • nrn r on w l SOUTtirlEST nr:G ION 16 l *
  • NORTH CllflNNEL.

REGION C6l SOUTll CliflNNEL AEGICJN C6J *

  • NORTHEnST REGION C6l CENTRnL-EnST REGION (61 II
  • sournr:nsr flEGI ou C6l II I JI LEGEND * -95,. x +95" Cl -so I +SD Cl. MIN. I I I I MAX. -0.-19 O.C9 a. J"/ a. c;s SPOT -rflLL a. 9J I. 21 RAN.GE RANGE ** Trawl catch statistics of spot in PUULIC s1mv1cE AND GAS cmtl'.\NY fall-1978 Si\J.l::M NtJCLE.\H GENEHA'l'ING STATION Figure 3.l.6a-36 3.1-296 **

Legend v Up1;ur rouge + One :slnutlurtl dcY iution Atlar1tic x Mcun 3.5 --*----------- croaker + One slul) durd elev iu ti on. A Lower rungc .......... ...-< + z ........, t::f) 0 o--1 1-t 1.5 o* 'H ..... Q) '-..... ,.q {) .p 1 ro t.) 0.5 + + + + -0.5 J F J J A s 0 N D J PLJHL!C l::I.EC'J'n!C AND GAS SALEM NllCLL\H S'l'ATI0:--1 Temporal abundance of Atlantic croaker by trawl-1978 Figure 3.l.6a-37 3.1-297 * * * * * * * *

  • i! J *
  • * -0. :l5 0. C'/ 0. *IC 0. 1. :J 1 1. '/3 IJOlllfHff::n nr:GlnN (G) 11==-. -=::t--*----Jj
  • crnrnm. **HEST f1CC I !;N (G) SOUTlllH::sr AEGICN CG) 1c:1 ========-==lt=.

===:Hll __ _ *

  • NORTH CHnNNEL AEGION CG) SOUTH Clif1NNEL AEGION (6) *
  • NORTHERST REGION C6J I-Fl CENTRf1L-Ef1ST RE.GION C6l
  • SOUTllEnST REG ION C6 l F=f=3 LEGEND
  • Cl -SD I +SD Cl MIN. l-J -.J:j =::t=:::i1===J MAX. a. C'/ o. 4U 0. qo 1. JI nrLnNTIC cnonKEH -tnLL 1.n RANGE RANGE ** Trawl catch statistics of Atlantic PUJlLlC SEHVICI::

l::I.EC'rnrc AND GAS cmlPAW( croaker in fall-1978 SALEM NUCLEAH GENEHATING STA'l'lON Figure 3.l.6a-38 3.1-298

  • 3.5 3 2.5 1.5 1 0.5 Arr1er :ica:n_ ee 1 Lcg8nd '\/ Upper rungc + One !"Jlunclurd dcv iution X Menn + One :;lnndurd dcvintion

/::,, Lower rungp .:: --:,..,_ -0.5 --.----.--,.----.----,----,---"T---,.---r---.---r---, ' i Temporal abundance of American eel : PUJlLlC i:1.1:c;rn1c AND GM; CO\lPM:Y by trawl-1978 l t\UCLi:,\n Cl:Nr:1:ATINC STATION 1 Figure 3.l.6a-39 3.1-299 * * * * * * *. * * * ** *

  • * * -0.J!l 0.43 0. '/I o. 'ls 1. i!7 IHJnTIH-lEST flf.GIOrl tGJ
  • CENTRAL-HEST (61 SOUTHHEST REGION (6J *
  • NORTH CHANNEL C6l .* SOUTH CHANNEL REGION C6l
  • Nl'lAT!IEAST REGION (SJ CENTRAL-EAST REGION (61
  • SOUTHEAST REGION 161 * -0. 13 O. IS 0. *3 0 * ."11 a. 99 1. 27 nHEHICnN EEL -srnING Trawl catch statistics of American
  • PUlJLIC J:;LECTRIC AND GAS cmtPANY eel in spring-1978 SALEM GENERATING STAT.ION Figure 3.l.6a-40 3.1-300 *
  • * -0. I!! 0. 15 0. 4!! o. *11 0. 'l!l 1. 27
  • 1mn11:HEST REGION tSl CENTRnL-HEST REGION t6l
  • SOUTliHEST REGION t6J
  • NORTH CHANNEL REG!eN t6l
  • SOUTH CHANNEL REGION t61
  • NORTHEAST AEG!ON C6l
  • CENTRnL-ERST REGION (6)
  • sournrnsr REGION t6J -o. !3 0.15 o.*:J o.*11 L. ;!"I nMERJCON EEL -SUMMER *
  • I Trawl catch statistics of
  • PUBLIC SE:lff!CE J::l.ECTmc Al\]) GAS l . 19 7 8 ee in surnmer-S,\LSM STATION American Figure 3.l.6a-41
    • 3.1-301 *
  • IHlATHHESi flEGI ON (6J
  • CENTnnl-HEST REGlCN (5l SOUTllHEST REGION 151 I *
  • NORTH CHnNNEL REGION tSl .*

REG£CN !SJ

  • NOnTHEAST flEG!ON C6l CENTRAL-EAST REGION CSJ
  • SOUTllEnST REG raN C5J * -o. 1!1 0.15 o.43 o.*11 o.99 1. 27 nHEnrcnN EEL -FnLL ** Trawl catch statistics of Americari PUBLIC J::l.ECTR!C AN'D G,\S cmtPANY eel in fall-1978 SALEM NUCLE.\H GI::NF.RATING STATION Figure 3.l.6a-42 3.1-302
  • 3.5. 3* 2.5-..........

M + x 2-.__.. bD 0 .....c +) 1-t 15-0 'H 'H Q) ""-..Q (.) -r.> 1-"5 u 0.5. 0 BI*ue1Jack 11e:rr ir1g ., '7 v + x + 1::,. Legend Uppr!r runr,c One dcviution Menn ------------- One stund:n-d dcvia.tion Lower rungc '7 ... J F M A M J J A S 0 N D J Punuc si:;11v1ci:: Al':D GAS I:. SALEt.I N!ICLEAI< GEN1:1<AT!NE ST,\TION .

__

Temporal abundance of blueback herring by trawl-1978 3.1=303 * * * * * * *. * * * ** *

  • *
  • I i i i *-* ' * ' * * * * **
  • IJ t: fl Tll l/f' :;r nr.Gll!tJ tG l C[IHflnL-l*ff T f\CG!Cll (GJ SOUTllYlEST

[[j l Nanrn CllflNNEL REGION (6) s.aurn CHANNEL REGION (6) NClRTllERST REG!ClN (G) CENTRAL-ERST REGION (6) SOUTHEAST f1EGJON (GJ LEGEND .-95,. x +95,. Cl -SD I +ID Cl MIN. I I MAX. RANGE RANGE PUJJLIC AND GAS SALEM c;1.;NEHATINt.: -*O. 1.4 0. l!2 0. l."1 G. :J o. *rn I. 03 ___. ' I . -J--n Ii +--==u II i===H I '* I Il 'I . II I 11 ' I I I! I 11 " -o. ;l4

0. i!7 o. . 0. *10 l. CJ aLurnnrn l!Er.fHNG

-SPllING Trawl catch statistics of blueback herring in spring-1978 Figure 3.l.6a-44 3.1-304 i ! / ;

  • * .. []. l1 Q. 02 0. l.'/ o. !)!} 0. "ID
  • NDrlTllHC'.JT llEGIOIJ CGJ IF==! II flEG!ON (GJ " . SOUTllliEST flEGIC:?N (Gl II ===J
  • mmrn CllP.tHlEL REGION (6)
  • SOUTll CHONNEL REGION C6J *. NORTllEnST flEGION CGJ
  • CENTflnL-EnST REGION (6)
  • SOUTllEnST REGION Wl LE CE ND l. (!J i Cl -SD t-----=E MA x. II.IN.
o. o. o.1v

! iEIHl I NG -rnLL -*0, 2.1.

  • RANCE RANGE , Trawl catch statistics of bluenack : l'UJlLlC l'.l.l'.C'rnlC J\i':D GAS herring in fall-1978
SAU'.td NUCJ.l
.\H STATION !;*-------------------------..{

I Figure 3.l.6a-45

    • 3.1-305 *
  • * * * .* ** * * **
  • I I i I I I ' I I I ' I I I I I >.I :: I 'O I !I i" I
  • I "'I I I >. lloway I I ---\ :--1 \ \ r---, I \ \ I l \ \ \ I I \ \ I I \ 1 * \ I I \ I \ \ I \ GNW \ \ GNE \ \ \ \ \ ( ('.) Sa l*m GeneraUn9 \ \ " 0 SlaUan \ '\ \ I '-\ \ I ...... ,.,""

\ . // "' ____ J._ '\.. // ----... \.' '\. "< ',, ' ' ' ' '\.. GSW \. '\.. GSE / \ \. " ' a* " ' /. , \. ' \. / +oq ,/ ' " / ,,-\ " \. '\. / ,. ' ' ' / ', ' ' // ' ' ' / ' >o V mu., 1 ' ,. / 0 !*--'-' --'-' 'y ldlomelert ArlifldaJ Island ,. PUJlf.IC AND GAS Gill net zone locations -1978 Si\L!*:11 NUC:J.E.\11 GI*:NlmATING STATION' Figure 3.l.6a-46 I, 3.1-306 .

  • w I-' I w 0 -..J 3 5 6 Al lo;;ay 2 3 *
  • Tl>.BLE 3 .1. 6b-l DESCRIPTION OF SEINE STATIONS -1978 LGSAT I o:l gravel beach 0.75 mile below Silver Lake dam, 9.75 miles upstrea::i fro::i ::iouth. SHDHE 50Z r.iarsh; 30Z pasture; 20% wooded B2se of ,*coded bordering south branch of Creek 0.5 .wooded bank; nile Road 429 bridge, 9 miles from mouth! 50%

8e2ch at Fennlr.ore Landing, 1 mile upstream from mouth. 82se of bar.k, 2 miles upstream from Quinton (Route 49) 11.5 miles upstream from.mouth. Gravel beach 0.5 mile Quinton (Route 49) bridge, 9 miles fro::i 2outh. bar at r.outh of secor.d ditch off south side of creek (upper end of Elsinboro Creek tributary), 1 mile upstreara from mouth. * * * * * \ Sand-bank, meadow, so:ne trees Wooded 90% pasture; 10% Marsh, sone trees Sand bar, marsh

  • c:;:,:::os IT I 70% soft r.LJd; 30% gravel ED%

40% 90% 10$ r.iud-clay 80$ gravel-sand; 20$ clay, silt BC% I-sand; nwd 80% sand; 20$ soft cud, detrihJs sonm SLO?E 10-30 ce;rees 20-35 ce;rees 5-15 dagrees 20-30 c!egrees 15-25 30-40 IA SALEH FF 1978 * * * *

  • w I-' I w 0 co *
  • 3 5 Allo:;ay 5 Hope 2 * * * * * *
  • Tl>.BLE 3 .1. 6b-2 DESCRIPTION OF TRJ..\-IL ZONES -1978 LOCATJOtl Creek channel 7.75 to 8.75 miles upstread from mouth (Rte. 13 bridges end of zone). Creek channel 5.25 to 6.5 miles upstream from mouth (Rte. 299 bridge at Odessa delimits end of zone). Creek channel from mouth to 1.75 miles upstream.

Creek ch2nne l B.O to 9.5 r.i l es from mouth (Qui Rte. 49 bridge delinits upper end of zone). Creek ch2nr.el 2.5 ta 4. 75 miles upstream from mouth (Hancocks Bridge delimits upper end of zone). Creek channel from r.outh to 2.5 miles upstreao. Creek of Creek fron the intersection at Hope . Creek to a poir.t to Creek. . . Creak frc::i S.N.G.S. bridge upstrea!'.l to a point to the ir.tersection Creek. SHORE 75% marsh; 20% 5% residential (launs), a docks o::PTH 5-15 ft 80% marsh; 15% residential 5-25 ft a docks; 5% wooded 90% marsh; 1 3-25 ft 80% roarsh; 15% woodt;d; 5% residential (la'.::r.s) 70% marsh; 30% residential (cottages, Qarina), several oocks ll:arsh Marsh, a few cabir.s and docks ll:arsh 3-15 ft 5-20-ft 10-25 ft B-20 ft 8-30 ft

  • 6GTT8::'.

G:*ave l, s2r.c, Graval, scr.d, i:d Gr;::*1e 1, sarid, od Grc*.ie1, sar:d, ro::d tr2Vi: l, fravel, c .. .; Gr2:','G 1, SZ;:::, 1; IA SALEM: FP 1978 * *

  • APPOQUINH'ilNK CREEK STAllU!l 3 5 6 1<0. Of U,LLEC f IOrCL!TUS 157 12 40 MEN!D!A 203 1 367 F. DIAPHA'lUS 23 14 H. IWCHAL! S 21 1 E. Ulr*S l ED l 31 A. :q fLH!LLI 1U 7 *'l.

56 2 9. Tl RA:i,lJS 45 A. ROS[o<qA 25 14 7 w CrPRlN!UAE ll. !US 26 f-' M. tlbi 1LL!'I"-17 I L * :*:Ac><uCn!RUS 12 3 w 0 ALOSA SPP. 13 \.0 A* :.bT !VALIS 4 L. ;. A**1 l H :J.luS F. 5 ,'-\. SAUllLIS !. MACULATUS 2 c. RtGAL!S 2 L. GlGBO!>uS 3 PSUJDJhA>lf:l;GUS 3 2 p. l.tHoULAtl IS 1 f,OTROP!S IJ. AUALOS TAr,us CENTRARCrl!OAE P. FLAVESCEllS P. .. SALMli!OfS P. !US * * * *

  • TABLE 3 .1. 6b-3 CREEK SEINE CATCH STATISTICS-1978
  • 1 1 1 14 921 2i'S 5 315 89 153 5 29 1 36 3 2 3 ALLOWAY CREEK 2* 13 14 us 374 30 22 111:! 68 75 32 37 4 5 5 1 2 2 *
  • 3 13 7 340 54 205
  • 30 45 2 3
  • TOTAL 79 31 31173 RANK PCT 915 1 28.8 811 2 25.6 374 3 11.8 259 4 8.2 252 5 7.9 142 6 ". 5 119 7 3.8 82 8 2.6 47 9 1. 5 36 10 1.1 33 11 1.0 19 12 .6 16 13 .5 13 14 . " 12 15 . " 7 16 .2 6 17 .2 5 18 .2 5 18 .2 4 20 .1 3 21 .1 3 21 .1 2 23 .1 1 24 .o 1 24 .o 1 24 .o 1 24 .o 1 24 .o 1 24 .o 1 24 .o 1 24 .o IA SALEM f F 1978 * * *
  • * * * * * * * * * * * *
  • TABLE 3.l.6b-4 CREEK TRAWL CATC!i STATISTICS-1978 APPOGUINlMINK CREEi: ALLOWAY CREEK HOPE CREEK 110. OF COLLECTIONS 42 41 28 NO. OF SPECIES 19 16 10 NO. OF SPECIMENS 692 381 S3 I 5 MIN TllAwL CN/T> 16. s 9.3 ;
  • 9 SPECIES NUMBER NIT Tilt NIT* NUl-IBER NIT T* NIT* IWMBER NIT T* N/Tr A. ROSTRATA 34 .8 17 2.0 18' .4 7 2.6 2
  • 1 2 1.0 w A. AEST!VALJS 9 .2 3 3.0 1 1 1.0 4 .1 3 1
  • 3 A. PHUOOHARENGUS 1 1 1.0 1 1 1
  • 0 ....... B. T ¥ii A *i *i US 3 .1 2 1
  • 5 3 .1 3 1.0 I D.

1 1 1.0 w A. Ml TCr<lLLl 18 .4 6 3.0 52 1.3 11 4.7 6 .2 4 1.5 ....... c. CA RP I() 7 .2 4 1. 8 8

  • 2 4 2.0 0 H. IHJCkALIS 32 .8 7 4.6 13 \ .3 5 2.6 I. C.C.TUS 3 .1 3 1. 0 3 .1 3 1.0 2 .1 2 1.0 I. 11(:i>UL()SUS 77 1.8 12 6.4 13 .3 s 2.6 2 .1 1 2.0 I.

T' TUS 29 .7 12 2.4 6

  • 4 4 1.5 F. fiE:HR:iCLITi.JS 1 1 1.0 "'*

171 4.1 29 5.9 30 .7 13 2.3 4 .1 4 1.0 M. 2 2 1.0 P. FllVc5CEr.s 4 .1 2 2.0 c. HG!LIS 36 .9 5 7.2 53 1.3 10 5.3 17 .6 4 4.3 L. X 60 1.4 5 12.0 89 2.2 7 12.7 1 1 .o P. 2 2 1.0 1 1 1.0 1 1

  • J P.

4 .1 2 2.0 T. M.C.CULA TUS 202 4.8 25 8.1 86 2.1 17 5.1 14 .s 6 2.3 T* NU1'43ER OF TRAWL H.l.ULS wlTH SPECIES N/h SPECIMENS/5 HIN TRAOIL IN IJHICH SPECIES IJAS fAl(Elj IJI. S.1LE!1 FF 1978 w . I-' I w I-' I-' * * *

  • NO. OF COLLECTIONS NO. OF SPECIES NOo OF SPECIMENS SPECIMENS I 5 MIN SPECIES A. ROSTRATA A. AESTIVALIS A. PSEUDOHARE:.NGUS B
  • TYRANNUS D. CEPEDIANUM A. MITCHILLI
c. CARPIO H. NUCHALIS I. CATUS I. NEBULOSUS I. PUNCTATUS F. HETE:.ROCLITUS M. AMERICANA M. SAXATILIS P. FLAVESCENS
c. REGAL IS L. XANTHURUS P. CROM IS P. AMERICANUS T. MACULATUS TABLE 3.l.6b-4 CONTINUED

' I TOTAL 1 1 1 20 1,126 TRAWL <NIT> 10.1 NIT 54 .5 14 .1 2 6 .1 1 76 .7 15 .1 45 .4 8 .1 92 .8 35 .. 3 1 205 1.8 2 4 106 1.0 150 1.4 4 4 302 2.7 T* NIT* 26 2.1 7 2.0 2 1.0 5 1.2 1 1.;0 21 3.6 8 *1. 9 12 3.8 8 1.0 18 5.1 16 2.2 1 1.0 46 4.5 2 1.0 2 2.0 19 5.6 13 11.5 4 1.0 2 2.0 . 48 6.3 Tir NUMBER OF TRAWL HAULS WITH SPECIES NI Tit SPECIMENSl5 MIN TRAWL IN WHICH WAS TAKEN IA SALEM FF 1978 * * * * * * -----' * *

  • * * * * * . * * * * ** Creek seine locations-1978 PUllLIC SE!ff!CE I::LEC'n::rc J\ND GAS cmll'ANY S,\LEM ca.:m:nJ\TING S'J'J\TION Figure 3.l.6b-l 3.1-312
  • Augu!.linc Beach ) + s (
  • Creek trawl locations-1978 PUJlLIC SElffiCE t.:l.l:Cl'mc Al'\D GAS cmIPANY I, ' ll l'\I' C'l'"J'J"'l'l"G

'"l'"J'IO I S,\LI::hI

-; l " * " * , ,,, . ,,_. " *' " " if..' -------F-* -i-qu_r_e--3-.-1-. b---2------4 3.1-313 * * * * * * * * * * *
  • *
  • ALL3 APP6
  • ALL2 APP3 * *
  • ALL1 *
  • I * ** Similarity of seine catch on first PUBLIC AND GAS cmtPANY three component axes based on SALEM NllCLJ.::,\H GENEHATING S'l'A'l'.!ON species composition-1978 Figure 3. l. 6 b-3 3.1-314
  • APP3 ALL1 HOP2 HOP1 APP5 ALL4 I f Similarity of trawl catch on first 1 PLJJJLJC M:D GAS CO\!PANY three component axes based on SALE1,1 GENEHATING STATION I species composition-1978 l Figure 3. l .6b-4 3.1-315 * * * * * * * * * **
  • J
  • * * * * * * * * * ** * ........ .-! + x '--.-' tiJ) 0 .-< .;..> H 0 ...... 'H <ll "" *,.q u +l ro u 3.5 3 2.5 2 1.5 1 0.5 0
  • 11 .. *t11 .. L cf .L... . .. L .... (__,. .. L b f J / ' --:,. \ "' \ \ \ + "' "' Legend V Upper nwgc + One ucv intion + One clc:v ictlion b. Lower range I I I I I ' ;' ---I I I I ' + .. -0.5 J F A M J J A s 0 N D J Temporal abundance of mumrnichog by seine-1978

' l'UJJLIC stmv1rn AND G,\S ., SALE:M NUCJ.I:,\11 STATION s Figure 3.l.6b-5 3.1-316 S.5 1! 0 .... ..... ,Cl t.l ...., d u i:I rd 12) :::a Q.5 2 1.5 1! 0 .Cl 0 ...., d u i:I d 12) :::a o.s Mu1n1nichog Allowuy Creek Legend X* .* _-..* : *..*... ..... **:***x-..... .... . . . . . . . .. A _ALL1 __ _ -------+-.... _ . --+ !!1¥_ --x Spring Appoquinimink Creek Legend . A _Al_'P_'3 __ + !!1!5_ --X

  • ..* x****-*******

+ ....... .... ... Spring ---Sununcr ...... ........ Sun1mcr ******* "X F.ull Seasonal mean seine catch of : l'LJ!JLIC Sl::i(VJCE 1:.:u:crnrc AND CAS ! rnurnrnichog-1978 Siil.CM NUCJ.J:,\i\ Figure 3.l.6b-6 3.1-317 * * * * * * * * *

  • __J
  • *
  • Legend V Upper rc.nr_:c + One :Jtnrn.lnnl dcv iution Atlc-i11tic
  • r.:::.:.*

.. 1 *1 ... *r r.::i C *r c*-:l p u .... V '\..., . . ,.,:) .L .. '--' + Oti.e s Lfmdunl elev ia li.on D. Lower rnngc 3

  • 2.5
  • PUJJLIC AND GAS cm11 1 Ar:Y Temporal abundance of Atlantic silverside by seine-1978 GENEl?A'J'ING Figure 3.l.6b-7 3.1-318
  • J

.Q 0 1j u C2l h 0 ..... ..... .Q 0 1:i u i:f r;j Ill 1.:1 1 0.5 2 1.5 1 0..5 Atlnn tic silvers ide A + x Allowuy Creek Legend AIJ.1 !}_!¥ ___ .*.*. Spring Appoquinimink Creek Legend A APP3 + !}_1!5 __ _ x l'.1:1°..6.

        • :.** .. . : . . : . . . . . . . : x .. .... *** . : ............ . ... ... . .. . Summer . . . x ,: ** ... ***x Full *-x ----------

Sp1*i11g Sununcr :run l I Seasonal mean seine catch of I PUBLIC I::l.ECTr\IC AND G/\S cmlPANY. Atlantic silverside-1978 Si\l.t:M GENI:IU1TliiG

STATION Figure 3.l.6b-8 3.1-319 * * * * * *. * * * * *
  • . * *
  • 1. i I * * * * :* :3.5 . 3 2.5 2 1.5 1 0.5 ]3C1:n.d.cd.

I I I 1-: ., 'l .' c::.*l :\. .L .L.:. .L. _L___, 1 I I I + ' ' ' -Leg encl V Upper Hlllfjl! + One :;brndt1rcl elev in\.ion + One :d.1111.llH:rcl dc:v inl.ian /:, Lower rnnge. * + + -0.5 --.--...-,r---.-----.---y----,.--,---..---...---.---.----. J F M A M-J !'lllJLIC AND Gi\3 SALEM GENC:HATING STATION J A s 0 N D Temporal abundance of banded killifish by seine-1978 Figure 3.l.6b-9 3.1-320 J t! 0 ..... ..... rz'.I ......... .Q 0 .... 111 u r;j 111 Cl) :::a +> 1-t .o ..... .... l'il ......... .Q 0 +> 111 u r:l c;l Cl) 1 ()..5 1.5 0.5 Banded k illifish Alloway Creek Legend A AW + !!.!.!?-_ --x

          • +--Spring --A ppoquinimink Creek Legend A Al'l':l + AP1'5 x APP6 .........

,. --..:. ... _ +--------- -.... _-..J-__ --Summer Full 0 ;----------'1(.-------..:__ _ _;:1<---------4<" Spr inc: Smnmcr Full l'UJlLIC J.::LJ:cmrc i\}!D G,\S Seasonal meQn seine catch of banded killif ish-1978 S,\J.El.I NUCJ.J:,\I*: S'J',\TION Figure 3.l.6b-10 3.1-321

  • 4) * * * ** * ** * ** ... *
  • * * * * * * * * * * * ...-.. M + x .__, bO 0 r-1 o+.l H 0 'H 'H Q) ""-. ..Q 0 +> (ij u 3.5 Z.5 2 15 1 0.5 V\/:!1.ite
percl1 / , --... , I./,..,'."'" ____ _ / ... --, Legend 'V Uppt.:!1*

+ One: elev i<tlion X ).fc:un + One: dl!\' i<< Lion /:J. Lower rungc + + + + + + --0.5 - J F M A M J J A s 0 N D J Temporal abundance of white perch 'l'Ul.lLIC J::LJ*:C'rn!c AND G,\S cmlP.\NY trawl-1978 SALEM NUCLJ.:,\H GJ.:NEHATING Figure 3 .1. 6b-ll 3.1-322 Legend 'V Upper rnur,c .. + Ono elev iulion Vvl1:1te x Mcun :3.5 -------------- percl1 + Olla :;ln11d11i-d deviulion !!. Lower range 3-2.5-...-.-i + z-:>< ......._.. bl) 0 +> 1-t 1.5-v 0 'H 'H Q.l . ""' ,q () +' 1-ro C,.) '7 ,, 0.5-I \ \ I \ I \ ./ , LU I ,K.... . -I .... , ::<--iX--iK ...... , ___ . -........ 0 , -t-+ . + .+ -0.5-I I I I ! I I I l I J F M A lv.l J J A s 0 N D J i Temporal abundance of white perch ; PUBLIC 1.:1.EC:Tmc AND GAS by seine-1978 I S/\I.SM Nt!Cl.l*:,\H GENl.m/\TING STAT!Oi'.; Figure 3.l.6b-12 3.1-323 * * * * * * * * * * *

  • * * * * .* * * * ... * ... . " 0 ..... ..... l .,., tl u d d <> Vvhi tc perch i\llowny Crco::k Legend A :::Al=.U=---

+ -x .... b.o----------* ---:>. -:;t:._ ------X* .. ,_,.., -----=* Spring Summer Pull 1! 0 .... .... r:l ....... .<:I u ... <I u d d Cl ;::r: Legend A + __ X ...* X*-***** ... , ****..:.-.-:.-- ..... -X + ------.. . . ... ::-.":""*--=---- *_* _* *_* ......... Spring foll Summer z 1 0 Ho pa Creek iegcnd A + -Spring Summer PUBLIC SC:lfflCE. 1::1.CCTHIC AND GAS cmtPANY S.\1.EM STATION Seasonal mean trawl catch of white perch-1978 Figure 3 .1. 6b-13 3.1-324

  • While perch
  • Allowny 15 Creek t:
  • 0 ::: 0 .... Id Legend u cl A AIJ..1. Id Q) + !!1¥-_ --* :::<! 0.:) x
  • Spring Summer Foll 2
  • 15 Atpoquinimink

'reek t: *o * ..... ..... ........ .Cl 1 *o .... llS Legend u cl A Al'l'J Id Q) + !!1'!5_ --::a M x

  • 0*+,* ---------.*

****************X*************************X Spr il111 Sununcz* Full

  • Seasonal mean seine catch of white PUJlLIC SF.HVICE ELEC'J'l\JC AND GAS perch-1978 , SAi.EM NllCLI:,\11 GJ.:NEHA'l'ING S'J'ATIOI\
      • ' Figure 3.l.6b-14 3.1-325 *
    • *
  • Leg encl V Up1wr

+ Ont! :;Luncl1trd dcv in lion

  • 3.5 l.\: er X Menn + One! sl11nddrcl clcvialion

/::,. Lower rnngc . 3

  • 2.5 ,---,,
  • rl + 2 ..__, cD 0 ...... . * +' S-t 1.5 0 'H 'H (]) "" ,..q 0 +' 1 ca u * / ' / ' 0.5 / ' ',,l__
  • 0 + *I-* + + + -0.5. ---,
  • J F M A M J J A s 0 N D J ., Temporal abundance of hog choker by
  • PUBLIC l*:I.ECTl"\!C AND GAS trawl-:-1978 S,\LEM NUCLJ:,\H Gl::NJ.:HATlNC.:

S'l'J\TlON Figure 3.l.6b-15 3.1-326

  • t: 0 .... ..... w " .Cl 0 .., d u d r.l <> :::i1 I-Iogchokcr Allowrty <:1*cck Legend A Al.U +

-x ...* A ppoquinim.ink Creek Legend A __ --+ -X M'!! ...* .... X-.. a _ .... --+ ---: :: .-: . ..,..-*.:.* .:.: :..: -+-.. >* :: ......... -... x-** ***x ________________ ......,..------------------='1Fo.11 Spring Summer 0 Ho po Creek Legend A noP1 __ + !!0£.2_ -Sprinr, Seasonal mean trawl catch of 1 PUBLIC SSl\\"ICE: E!.Ecrnrc Ai\D CAS cmtP,\NY : hogchoker-1978 S,\!.l'M l\UCLJ:,\H C I:l\J\Tl N l: S'l'J\TIO;-.; I Figure 3.l.6b-16 3.1-327 * * * * * * *. * * * ** *

  • * * * * * * * * * * **
  • 3.5 2.5 ........ ..--1 + 2 M ..__, tiD 0 ....... +l 1-i i5 0 '1-1 'H Ql " .Cl . (.) +l 1 ct:l (.) 0.5 0 -0.5-J F Iv[ Silver)'

o*w I I I L' I "/ ;'i-=-" *t-+ A M J J ..... ' .... .... + + A s Legend 'V Uppt!l" nmgc + One elev i<1 lion X Mc:m1 .6. Lower rungc ---... ..._ r + 0 N D J Temporal abundance of silvery PUBLIC !'.:1.ECTl\IC AND GAS minnow by seine-1978 SALEM GENJ.:HATING Figure 3.l.6b-17 3.1-328 I

  • 2 Silvery m1nno*w
  • Allowny 15 Creek t: I.
  • 0 :::i I. I. /, ,q I. u /, +> <d Legend /, u /, i:l !::. AW ,; <d .... x ... C1l + AU.2 * ;;:ii -----. x !-.LJ..;!
          • . . ().5 . . . . . . . . . . . . . . . . 0
  • Spring Suinmcr Full *
  • 15 A Cpoquinimink

'reek t 0 .... * .... rxi ......... .cl (.) +> <d Legend u i:l !::. Al'P'J "' C1l + Al'P5 .. -----05 x Al'l'G * .......... Spring Su1n1ncr Fnll

  • PU!Jl.lC J::L[CTHIC AND GAS C<n!P: .. i SA!Hl NlJCLl:,\H S'J'.\'l'lON n -Figure 3.l.6b-1B Seasonal mean seine catch of silvery minnow-1978
    • 3.1-329 *
  • * * * * * * **
  • 3.5 3 2.5 'f csse ll<ited d.arter 0 -+------.\-i{.

+ Legend "l Uppc.:1* runi::c + One:: ::;tundnnl dcv iution

  • X Hean £:.,, Lower rungc -0.5 --.----.-------r--.,---..---.----.---.---.------

J M A M r PUBLIC t:I.I*:C'l'l\IC /\ND Gi\S cmtPM:Y SALEM GI::NCHJ\'l'ING ST,\TION J J A s 0 N D Temporal abundance of tessellated* darter by seine-1978 Fiqure 3.l.6b-19 3.1-330 I i 1!I t! 0 .... .... ......... .g 1 .... oS u fj ro Cll Q.5 2 1.5 ..... 1-t 0 .... ..... !%< ......... .Q 1 0 ..... oS u s:! r:I ::l!! Q.5 Tessc llnted darter Allowuy Creek Legend A ALLl + x Spring

  • Appoquinimink Creek Legend A Al'l'3 +

__ _ x

    • .* Spr inr. Seasonal Summer Sun1mcr mean seine catch Plllll.IC SE:HVICE

/\ND GA:-; CO\IPANY tessellated darter-1978 NUCLJ:,\H STXl'ION ' Figure 3.l.6b-20 3.1-331 -* * * *

  • Fall * * * *
  • of * *
  • Legend l v nlllr,c *I-One!

dcv iu lion I lj t I . 3'-.;) * ){ Monn --*----------*-Bc151 a.11.ctto*vy + One slmH.lord elev ialion fl. Lo l'IGr r11ugo 3

  • 2.5 ..-.. * ..--( + 2 ...__, t:D 0 ...... +> H 1.5 0 * 'H 'H Q) "-.......

..c: . 0 +> 1 r.l u * , ---, 0.5 I \ I \ I \ I \ I ,L

  • 0 ' .'--*-
  • ii.:li: ...... + + + + -0.5-* J F M A M J J A s 0 N D J ., ** Temporal abundance of bay anchovy* PUBLIC AND GMi cmlPM:Y by seine -1978 SALEM GENl*:HATING STATION Figure 3 .* 1. 6b-21 3.1-332
  • t! 0 .... .... r<l ""' A u ":ti u i::I rfj Ql ::l! t! 0 A 0 ...., d u i::I d Q) :::!! r. L'> 0.5 15 1 0.5 Bay anchovy Allowuy Crccilc Legend A ALU +

x ..... Appoquinimink Creek Legend A Al'P3 + AP1'5 -----. ?< .*** .. Sp;ing I puJJuc ss1w1rn ELECTmc AND GAS c:mtPM:Y

  • Seasonal mean seine catch of bay anchovy-1978 S,\LEM NUCLE.\I*:

CENr:ru.TINC.: S'J'Xl'ION I Figure 3.l.6b-22 3.1-333 * * * * * ** * * * *

  • * * * * . * * * * *
  • 3.1.7 Impingement of Organisms (ETS Section 3.1.2.2) In accordance with Section 3.1.2.2 of the ETS studies of impingement at Salem were conducted in 1978. Principal objectives are to determine species composition and to quantify number of fishes and blue crab impinged on the circulating (CWS) and service water (SWS) intake screens and to determine survival rates of organisms impinged at the circulating water intake. This section presents a summary of results during January through December 1978 as reported in Monthly Progress Reports, numbers 10 through 21, to NRC . 3.1.7.1 Summary At the CWS intake a total 93,853 specimens of 59 fishes and 2,988 blue crab were taken in 2,195 saTnples (3,791 min sampled).

From these samples it is estimated that total impingement was 14,362,829 fish (44,310.3 kg) and 363,268 blue crab ( 9, 3 6 7. 4 kg) . The most numerous fishes were weakfish (60.8 percent of the estimated total number), bay anchovy (14.3 percent), hogchoker (10.2 percent), white perch (5.1 percent) and blueback herring (2.1 percent). The most important fishes by weight were weakfish (23.5 percent), white perch (22.0 percent), hogchoker (11.1 percent), bay anchovy (10.4 percent), and silvery minnow (5.3 percent)

  • Estimated monthly impingement was greatest during July. Weakfish and bay anchovy comprised most (90.6 percent) of the July estimate.

Impingement was also high in June, August, and December.

  • some 61 percent of all fish collected were live, 28 percent were dead, and 11 percent were damaged. Of blue crab, 94 percent were live, 5 percent were dead, and 1 percent were damaged. At the SWS intake a total of 10,829 specimens of 49 fishes and 369 blue crab were taken in 154, 24-hr samples
  • Estimated total impingement was 25,423 fish (137.01 kg) and 857 blue crab (16.93 kg). The most numerous fishes were weakfish (59.l percent of the estimated total number), white perch '(10.l percent), bay anchovy (6.3 percent), hogchoker (4.0 percent), and gizzard shad (3.6 percent).

The most important fishes by weight were white perch (15.l percent), gizzard shad (15.0 3.1-334 percent), weakfish (14.9 percent), silvery minnow (6.0 percent), and spot (5.0 percent). Estimated monthly impingement was greatest during July. Weakfish comprised 84.5 percent of the July estimate. Impingement was also high in June; weakfish comprised 80.0 percent of the fish impinged. 3.1.7.2 Circulating Water System (CWS) INTAKE *AND FISH RESCUE SYSTEM DESCRIPTION The circulating water system intake and the fish rescue system were described in detail in Volume 2 of the 1977 Annual Environmental Operating Report. In brief, the principal components of the fish rescue system are vertical traveling water screens fitted with fish buckets, a low pressure fish removal system, a high pressure trash removal system, troughs to return impinged organisms to the river, and counting pools for sampling purposes. Prior to July 14, 1978, the combined flow of the fish trough and the*trash trough were discharged through a common outfall located at the north end of the intake structure. To reduce recirculation of discharged material during ebb tide a south discharge was put into operation. This permitted screen-wash flow to be discharged in the direction of tide. For sampling, both troughs can be diverted to two counting pools, located at the north and south ends of the intake, which have designed to minimize collection stress. Prior to July 14, only the north counting pool was operational. Thereafter both pools were used depending on the direction of screen wash discharge. MATERIALS AND METHODS Sampling Schedule All samples required by the Impingement ETS were taken. Prior to June 29, fishes and blue crab impinged on the CWS screens were sampled during three, 24-hr periods per week. A minimum of four 3-min samples for survival and abundance were taken at approximately 6-hr intervals (1200, 1800, 0000, 0600). 3.1-335 * * * * * * * * * *

  • I *
  • * * * * * * * * * *
  • On June 29 it was determined that during periods of heavy detrital loading long periods in the counting pool were negatively biasing survival estimates.

The procedure during periods of heavy detritus was modified to sample 1 min of flow for survival and abundance and a subsequent 2 min of flow for abundance only. On July 11, the sampling schedule was changed to increase the number of sampling days per week to seven and to increase the sampling frequency within each day. On three days per week the schedule became four 3-min samples per day for survival and abundance taken at approximately 6-hr intervals plus as many 1-min abundance samples as practicable taken throughout the balance of the day. On the remaining four days as many 1-min abundance samples as practicable were taken. On September 15, the sampling schedule was reduced to six days per week due to the reduction in the number of fish impinged

  • Sampling Procedure Before each survival sample was taken, the appropriate pool was filled to a depth of about 25 cm with water filtered through a nylon mesh filter bag. Sampling was initiated by rapidly removing the filter bag. After 1 or 3 min flow of total screen wash water had entered the pool sampling was terminated by re-inserting the filter bag. Organisms were allowed a 5-min acclimation period after which the pool was drained. During draining impinged organisms were colletted with dip nets and their condition determined according to the following criteria.

Live: Swimming vigorously, no apparent orientation problems, behavior normal

  • Dead: No vital signs, no body or opercular movement, no response to gentle probing. Damaged: Struggling or swimming on side, indication of abrasion or laceration . All specimens in each category were sorted by species, and the total number and weight of each was determined.

All specimens or a representative subsample (at least 100 specimens) of each species, drawn equally from each condition category if possible, were measured to the nearest 5 mm. Length and weight range per species and per condition category was also determined. Individuals and small numbers per species (as a group) were weighed to the nearest 3.1-336 0.1 g with an Ohaus 1600 Series triple beam balance. Large numbers per species were mass weighed to the nearest gram with a Salter suspended scale. Abundance samples were taken by diverting a 1-to 3-min flow of screen wash water to a counting pool. After sampling, the pool was drained immediately, all organisms were removed and sorted by species, and the total number of each was determined. The largest and the smallest specimen of each species was measured the nearest 5 mm. With all samples the numbers of pumps and screens in operation, screen speed, tidal stage and elevation, air temperature (C), sky condition, wind direction, and wave height at the time of each sample were recorded. Measurements of water temperature (C) in the pool were taken with a mercury thermometer or a Yellow Springs Instrument Company Model 51 A oxygen analyzer, and of salinity (ppt) with an Optical Corporation salinity refractometer, Model 10419. Detritus taken with the sample was weighed to the nearest 0.1 kg with a Dillon dynomometer or a Salter suspended scale. All data were recorded on a computer compatible field sheet. Data Reduction An estimate of the total number (est. n) and weight of each .species impinged per day was calculated by first multiplying the mean impingement rate per minute for the interval between each two consecutive samples times the number of minutes in the interval and summing the interval* estimates. The sum of the interval estimates was then scaled to 24 hr by multiplying by 1440 (the number of minutes in 24 hr) divided by the sum of the time intervals between all samples. The general computational formula is given by: ( l)

  • 1440 ZT 'vhere: E = daily estimated nbmber (or weight) a T = number of minutes in interval between consecutive samples rate/min at start of interval R2 = rate/min at end of interval 3.1-337 * * * * * * * * * * *
  • * * * * * .* * * * *
  • If samples were taken over less than a 12-hr period the sum the interval estimates was scaled only over the period between the first and last samples . This method of estimation eliminates the bias inherent in computing a straight mean estimated number per 24 hr by taking into account non-uniform sampling intervals and the variability of impingement rate caused by the patchy appearance of fish schools and daily activity cycles . The estimate is also valid for equally spaced samples. An estimate of the number of each species returned to the river alive per day was calculated by the same method as total number except that the rate of live specimens per minute was entered into equation 1 instead of rate of all specimens per species impinged per minute. The estimated number of live specimens was divided by the estimated total number impinged and multiplied by 100 to give percent live. Estimates of the total number and weight of each species impinged per week were calculated by summing the daily estimates and multiplying by 168 (the number of hours in a week) divided by the number of hours included in the daily estimates.

The computational formula is given by: ( 2) . 168 2:H where: E = weekly estimated number (or weight) w Ea = daily estimated number (or weight) H = number of hours included in daily estimates Weekly estimates were summed to yield a monthly estimate . RESULTS The CWS was fully operational (5-6 circulators in service) during most of January l through March 16, June 14 through October 9, and November 14 through December 31. From March 17 through June 13 a planned maintenance outage was in progress. During the outage samples were taken from April 11 through April 27 during which time one circulator was in operation. All circulators were shut down during the remainder of the outage. There was also an outage from 3.1-338 October 10 through November 13 during which only 1 -2 circulators were operated. A total of 93,853 specimens of 59 fishes and 2,9888 blue crab were taken in 2,l95 samples (3,79l min sampled) at the CWS intake (Table 3.l.7-1). From these samples, it is estimated that total impingement in l978 was l4,362,829 fish (44,8l0.3 kg) and 363,268 blue crab (9367.4 kg) (Table 3.l.7-2). The most numerous species were weakfish, bay anchovy, hogchoker, white perch, and blueback herring. Estimated impingement was greatest during July (est. n = 7,387,809) (Fig. 3.1.7-1). Weakfish (76.9 percent) and bay anchovy (13.7 percent) comprised 90.6 percent of the July estimate (Table 3.1.7-3). Impingement was also high in June (est. n = 3,482,551), August n = 944,912), and December (est. n = 720,100). Weakfish comprised 64.6 percent of the June total and 61.1 percent of that in August. In December white perch and blueback herring comprised 30.4 percent and 28.2 percent of the total, respectively (Table 3.1.7-3). Species variety was greatest (33) in December and least (12) in March. Some 61 percent of all fish collected were live, 28 percent were dead, and 11 percent were damaged (Table 3:1.7-J). Of blue crab, 94 percent were live, 5 were dead, and 1 percent were damaged. Survival was high for winter flounder (100 percent live), (98 percent), northern pipefish (96 percent), windowpane (93 percent), striped eel (87 percent), summer flounder (86 percent), and butterfish (84 percent). Survival was low for gizzard shad (19 percent live), carp (25 percent), Atlantic croaker (32 percent), and channel catfish (33 percent). Most (63 percent) gizzard shad were damaged (Table 3.1.7-1). Species Discussion Thirteen fishes were each represented in the sample by more than 300 specimens and together comprised 98.4 percent of the total impingement. These species and blue crab are discussed below. 1. Weakfish, n = est. n = 8,729,959 (Table 3.1.7-2), comprised 60.8 percent of the estimated total number and 23.5 percent (ranked first) of the estimated total weight. It was during June through December. Most (66.2 3.1-339 * * * * * * * * * * ** *

  • * * * * * ** * * * **
  • percent) of the estimated number was impinged during July (Table 3.1.7-3) . A detailed discussion of weakfish impingement during June through September was presented in Section III of the report, Summary Assessment of Weakfish Impingement:

Summer 1978 (PSEE.:G 1978b). Annual survival was 60 percent; 35 percent were dead, and 5 percent damaged (Table Percent live ranged from 33 in December to 85 in October. During months of abundance (June-September) percent live ranged from 44 to 81 (Table 3.1.7-3). Fork length ranged from 18 to 253 mm. Weight ranged from 0.1 to 250.6 g. 2. Bay anchovy, n = 14,525; est. n = 2,049,169 (Table 3.1.7-2), comprised 14.3 percent of the estimated total number and 10.4 percent (ranked fourth) of the estimated total weight. It was taken during January, April, and June through December. Most (90.1 percent) of the estimated number was impinged during June through September (Table 3.1.7-3)

  • Annual survival was 44 percent; 49 percent were dead and 7 percent damaged (Table 3.1.7-1).

Percent live ranged from 25 in January to 69 in November. During months of abundance (June-September) percent live ranged from 33 to 52 (Table 3.1.7-3). Fork length ranged from 13 to 98 mm. Weight ranged from 0.1 to 9.4 g

  • 3. Hogchoker, n = 9,873; est. n = 1,462,562 (Table 3.1.7-2), comprised 10.2 percent of the estimated total number and 11.l percent (ranked third) of the estimated total weight. It was taken during January, April, and June through December.

Most (81.3 percent) of the estimated number was impinged during June and July (Table 3.1.7-3). Annual survival was 98 percent; l percent were dead and l percent damaged (Table 3.1.7-1). Percent live ranged from 67 in January to 100 in April. During months of abundance (June-December) percent live ranged from 90 to 99 (Table 3.1.7-3)

  • Fork length ranged from 13 to 186 mm. Weight ranged from 0.1 to 111.7 g. 4. White perch, n = 5,743; est. n = 726,480 (Table 3.1.7-2), comprised 5.1 percent of the estimated total number and 22.0 percent (ranked second) of the estimated total weight. It was taken during all months. Most (77.l 3.1-340

percent) of the estimatea number was impingea auring February ana December (Table 3.1.7-3).

Annual survival was 44 percent; 8 percent were aeaa ana 48 percent damagea (Table 3.1.7-1). Percent live rangea from zero in September to 77 in April. During months of abunaance (January-March, November, December) percent live rangea from 3 to 72 (Table 3.1.7-3). Fork length rangea from 38 to 293 mm. Weight rangea from 1 .1 to 4 2 7. 6 g. 5. Blueback herring, n = 3,458; est. n = 308,395 (Table 3.1.7-2), comprisea 2.1 percent of the estimatea total number ana 2.2 percent (rankea eighth) of the estimatea total weight. It was taken auring all months except March. Most (97.0 percent) of the estimatea number was impingea auring November ana December (Table 3.1.7-3). Annual survival was 70 percent; 18 percent were deaa and 12 percent damagea (Table 3.1.7-1). During months of abunaance (November, December) percent live rangea from 69 to 75 (Table 3.1.7-3). Fork length rangea from 38 to 278 mm. Weight rangea from 0.1 to 134.3 g. 6. Atlantic silversiae, n = 1,908; est. n = 170,490 (Table 3.1.7-2), comprised 1.2 percent of the estimated total number and 1.1 percent (ranked eleventh) of the estimated total weight. It was taken during January through March and June through December. Most (70.4 percent) of the estimated number was impinged during August, October, and December (Table 3.1.7-3). Annual survival was 76 percent; 18 percent were dead and 6 percent damaged (Table 3.1.7-1). Percent live ranged from zero in January to 85 in November. During months of abundance (July-December) percent live ranged from 69 to 85 (Table 3.1.7-3). Fork length ranged from 23 to 193 mm. Weight ranged from O .1 to 13

  • 5 -g
  • 7. Silvery minnow, n = 1,350; est. n = 203,655 (Table 3.1.7-2), comprised 1.4 percent of the estimated total number and 5.3 percent {ranked fifth) of the estimated total weight. It was taken during January through March, June and December.

Most (86.7 percent) of the estimated number was impinged during January and February (Table 3.1.7-3). Annual survival was 55 percent; 7 percent were dead and 3 percent damaged (Table 3.1.7-1). Percent live ranged from 3.1-341 * * * * * * *. * * * ** *

  • * * * * .* * * * *
  • 25 in March to 100 in June. During months of abundance (January, February, December) percent live ranged from 39 to 69 (Table 3.1.7-3) . Fork length ranged from 33 to 143 mm. Weight ranged from 0.1 to 32.4 g. 8. Spot, n = 1,183; est. n = 128,341 (Table 3.1.7-2), comprised 0.9 percent of the estimated total number and 4.2 percent (ranked sixth) of the estimated total weight. It was taken during June through December.

Most (69.5 percent) of the estimated number was impinged during July, August, and November (Table 3.1.7-3). Annual survival was 71 percent; 14 percent were dead and 15 percent damaged (Table 3.1.7-1). Percent live ranged from 26 in October to 85 in November. During months of abundance (June-August, November, December} percent live ranged from 68 to 85 (Table 3.1.7-3). Fork length ranged from 23 to 198 mm. Weight ranged from 0 .1 to 8 9

  • 8 g
  • 9. Atlantic menhaden, n = 1,120; est. n = 146,030 (Table 3.1.7-2), comprised 0.9 percent of the estimated total number and 1.8 percent (ranked ninth) of the estimated total weight. It was taken during June through December.

Most (81.7 percent) of the estimated number was impinged during June through August (Table 3.1.7-3). Annual survival was 63 22 percent were dead and 15 percent damaged (Table 3.1.7-1). Percent live ranged from 53 in June to 84 in October. During months of abundance (June-August) percent live ranged from 53 to 66 (Table 3.1.7-3 )

  • Fork length ranged from 33 to 238 mm. Weight ranged from 0.2 to 194.7 g. 10. Atlantic croaker, n = 689; est. n = 59,086 (Table 3.1.7-2), comprised 0.4 percent of the estimated total number and 0.1 percent (ranked thirteenth) of the estimated total weight. It was taken during January, and September through December.

Most (86.4 percent) of the estimated number was impinged during December (Table 3.1.7-3)

  • Annual was 32 percent; 28 percent were dead and 40 percent damaged (Table 3.1.7-1).

Percent live ranged from 8 in January to 88 in September. During December 27 percent were live (Table 3.1.7-3). Fork length ranged from 23 to 88 mm. Weight ranged from 0.1 to 7.6 g. 3.1-342

11. Butterfish, n = 671; est. n = 54,419 (Table 3.1.7-2), comprised 0.4 percent of the estimated total number and 0.3 percent (ranked twelfth) of the estimated total weight. It was taken during August through October and December.

Most (90.7 percent) of the estimated number was impinged during September (Table 3.1.7-3). Annual survival was 84 percent; 8 percent were dead and 8 percent damaged (Table 3.1.7-1). Percent live ranged from 78 in August to 100 in December. During September 84 percent were live (Table 3.1.7-3). Fork length ranged from 33 to 158 mm. Weight ranged from 0.8 to 66.3 g. 12. Gizzard shad, n = 454; est. n = 65,333 (Table 3.1.7-2), comprised 0.5 percent of the estimated total number and 3.5 percent (ranked seventh) of the estimated total weight. It was taken during January, February, and December. Most (98.6 percent) of the estimated number was impinged during January and December (Table 3.1.7-3). Annual survival was 19 percent; 18 percent were dead and 63 percent damaged (Table 3.1.7-1). Percent live ranged from zero in February to 44 in December. During months of abundance (January, December) percent live ranged from 9 to 67 (Table 3.1.7-3). Fork length ranged from 68 tQ 333 mm. Weight ranged from 3.2 to 626.5 g. 13. Striped cusk-eel, n = 343; est. n = 38,062 (Table 3.1.7-2), comprised 0.3 percent of the estimated total number and 1.5 percent (ranked tenth) of the estimated total weight. It was taken during April and June through November. Most (92.3 percent) of the estimated number was impinged during July, September, and October (Table 3.1.7-3 )

  • Annual survival was 87 percent; 2 percent were dead and 11 percent damaged (Table 3.1.7-1).

Percent live ranged from 79 in July to 100 in April. During months of abundance (July-October) percent live ranged from 79 to 90 (Table 3.1.7-3). Fork length ranged from 73 to 258 mm. Weight ranged from 6.7 to 58.2 g. Blue crab, n = 2,988; est. n = 363,268; estimated total weight= 9367.4 kg (Table 3.1.7-2), was taken during June through December. Most (76.0 percent) of the estimated number was impinged during June, July, and October (Table 3.1.7-3) (Fig. 3.1.7-2). Estimated monthly impingement ranged from 8,573 in December to 136,706 in October. 3.1-343 * * * * * * * * * * ** *

  • * * * * * .* * * *
  • Annual survival was 94 percent; 5 percent were dead and 1 percent damaged (Table 3.1.7-1).

Percent live ranged from 88 in June to 98 in November. During months of abundance (June-October) percent live ranged from 88 to 97 (Table 3.1.7-3). Carapace width ranged from 8 to 208 mm. \'7eiqht ranged from 0.1 to 323.0 g . 3.1.7.3 Service Water System (SWS) INTAKE DESCRIPTION Service water is withdrawn from the river through an located about 122 m north of the CWS intake by six 0.69 m /s pumps per unit. The SWS supplies water for essential internal plant usage. The pumps for each unit are mounted in two wells with three pumps per well. Each well is equipped with three conventional vertical traveling screens. Under normal operating conditions four pumps per unit are operated. Traveling water screen operation is intermittent and is activated by differential pressure. Impinged organisms were washed into troughs leading to removable trash baskets at each end of the intake structure. MATERIALS AND METHODS Sampling Schedule and Procedure All fishes and blue crab impinged on the SWS screens were collected during three 24-hr periods per week. Normally, during each 24-hr period two 12-hr collections were taken. From March 17 June 16, total 24-hr collections were generally taken. All collections required by the ETS, except one 24-hr sample and one 12-hr sample in December, were taken. These collections were not taken as a result of operational problems and icing conditions at the intake. Impinged organisms were collected with sampling nets set in the trash baskets. Fishes and blue crab were sorted by species, and the total number and weight of each was determined. All specimens or a representative subsample (at least 100 specimens) of each species were measured to nearest 5 mm. The length and weight range per species was determined. Weight of detritus taken with the sample was 3.1-344 recorded. All data were recorded on a domputer cornpatable field sheet. Data Reduction Weekly impingement estimates for each species were calculated by multiplying the number (or weight) taken during each 24-hr sampling period by seven, summing the results, and dividing by the number of 24-hr periods sampled. Weekly estimates were summed to yield a monthly estimate. RESULTS A total of 10,829 specimens of 49 fishes and 369 blue crab were taken in 154, 24-hr samples at the SWS intake (Table 3.1.7-5). Estimated total impingement in 1978 was 25,423 fish (137.01 kg) and 857 blue crab (16.93 kg) (Table 3.1.7-6) .

  • The most numerous species were weakfish, white perch, bay anchovy, hogchoker, and gizzard shad. Estimated monthly impingement was greatest during July (est. n = 11,097). Weakfish comprised 84.4 percent of the July estimate (Table 3.1.7-7).

Impingement was also high in June (est. n = 6,294); weakfish comprised 80.9 percent of fish impinged. Species variety was greatest (23) in January and least (11) in February and September (Table 3.1.7-5). Although weakfish ranked first in estimated annual number impinged (est. n = 6,439) it ranked only third in estimated weight (20.40 kg), being exceeded by white perch (20.66 kg) and gizzard shad (20.59 kg) (Table 3.1.7-6). Most impinged weakfish were young (age 0+) whereas impinged white perch and gizzard shad included young and adults. Species Discussion Eight fishes were each represented in the sample by more than 200 specimens and together comprised 90.9 percent of the total impingement. These two less abundant 3.1-345 * * * * * * *. * * *

  • __ J
  • * * * * * * * * **
  • fishes which are considered important, and blue crab are discussed below. 1. Weakfish, n = 6,439; est. n = 15,024 (Table 3.1.7-6), comprised 59.l percent of the estimated total number and 14.9 percent (ranked third) of the estimated total weight . It was taken during June through December.

Most (98 percent) was impinged during June through August (Table 3.1.7-7). Only single specimens were taken in November and December. Fork length ranged from 23 to 233 mm. Weight ranged from 0.1 to 115.0 g (Table 3.1.7-7).

2. White perch, n = 1,091; est. n = 2,580 (Table comprised 10.l percent of the estimated total number and 15.l percent (ranked first) of the estimated total weight. It was taken during all months except August. Most (94 percent) was impinged during January through March and December (Table 3.1.7-7).

In September only one specimen was taken. Fork length ranged from 43 to 253 mm. Weight ranged from 1.3 to 223.0 g (Table 3.1.7-7).

3. Bay anchovy, n = 681; est. n = 1,592 (Table 3.1.7-6), comprised 6.3 percent of the estimated total number and 3.4 percent (ranked eighth) of the estimated total weight. It was taken during April through December.

Most (94 percent) was impinged during May through August 3.1.7-7). During December only one specimen was taken. Fork length ranged from 33 to 98 mm. Weight ranged from 0.2 to 10.0 g (Table 3.1.7-7).

4. Hogchoker, n = 434; est. n = 1,015 (Table 3.1.7-6), comprised 4.0 percent of the estimated total number and 4.1 percent (ranked sixth) of the estimated total weight. It was taken during March through December.

Most (71 percent) was impinged during June and July (Table 3.1.7-7). In March only one specimen was taken. Fork length ranged from 28 to 183 mm. Weight ranged from 0.1 to 127.5 g (Table 3.1.7-7)

  • 5. Gizzard shad, n = 384; est. n = 915 (Table 3.1.7-6), comprised 3.6 percent of the estimated total number and 15.0 percent (ranked second) of the estimated total weight. It was taken during January through March and December.

Most (93 percent) was impinged during January (Table 3.1.7-7)

  • It was also common during December (n = 20). Only single specimens were taken in February and March. Fork length ranged from 73 to 218 mm. Weight ranged from 3.7 to 161.5 g (Table 3.1.7-7).
6. Silvery minnow, n = 327; est. n = 709 (Table 3.1.7-6), comprised 2.8 percent of the estimated total number and 6.0 percent (ranked fourth) of the estimated total weight. It 3.1-346 was taken during January through April, June, and December.

Most (92 percent) was impinged during January and February (Table 3.1.7-7). Only single specimens were taken during April and June. Fork length ranged from 48 to 163 mm. Weight ranged from 1.1 to 31.6 g (Table 3.1.7-7).

7. Blueback herring, n = 287; est. n = 668 (Table 3.1.7-6), comprised 2.6 percent of the estimated total number and 3.1 percent (ranked ninth) of the estimated total weight. It was taken during January, March through July, November and December.

Most (90 percent) was impinged during March, April, and December (Table 3.1.7-7). Few were taken during January (n = 3), May (3), July (2), or July (1). Fork length ranged from 38 to 263 mm. Weight ranged from 1.5 to 222.4 g (Table 3.1.7-7).

8. Atlantic menhaden, n = 206; est. n = 496 (Table 3.1.7-6), comprised 2.0 percent of the estimated total number and 3.9 percent (ranked seventh) of the estimated total weight. It was taken during April through December.

Most (81 percent) was impinged during June and July (Table 3.1.7-7). Few (n = 1-9) were taken during the remaining months of occurrence. Fork length ranged from 33 to 223 mm. Weight ranged from 0.2 to 148.0 g (Table 3.1.7-7).

9. Atlantic croaker, n = 130; est. n = 315 (Table 3.1.7-6), comprised 1.2 percent of the estimated total number and 0.2 percent (ranked tenth) of the estimated total weight. It_ was taken during January, October, and December.

Most (98 percent) was impinged during December 3.1.7-7). Two were taken during January and one was taken in October. Fork length ranged from 28 to 73. Weight ranged from 0.1 to 3.8 g (Table 3.1.7-7).

10. Spot, n = 105; est. n = 250 (Table 3.1.7-6), comprised 1.0 percent of the estimated total number and 5.0 percent (ranked fifth) of the estimated total weight. It was taken during January and June through December.

Most (68 percent) was impinged during August, September, and November (Table 3.1.7-7). Impingement was low during January (n = 1) and June (3). Fork length ranged from 28 to 168 mm. Weight ranged from 0.1 to 88.9 g (Table 3.1.7-7). Blue crab, n = 369i est. n = estimated total weight = 16.93 kg (Table 3.1.7-6), was taken during April through December. Most (70 percent) was impinged during October (Table 3.1.7-7). It was also common during November (n = 41). Only one specimen was taken during April. Carapace width ranged from 13 to 193 mm. Weight ranged from 0.2 to 146.5 g (Table 3.1.7-7). 3.1-347 * * * * * * * * * * * *

  • Tl\nT.E J.1.7-1 ACTtJl\L l\ND OF Tl\K!':N
  • Ill IMP rz;c:1*:MENT l\T Tiff: Si\ LEM Ch'S HI 1978 J\ctunl t Survival Species No. r.ive [).-.;id Dam:1qP.d A. rostrat:a 216 65 6 29 c. oce11nicun 3 50 50 0 * ;\, . ae<Jtivalis J,458 70 18 12 A. pseudoha rengu.1 44 59 7 34 A. su.pidissima 15 87 13 0 B. tyrannus 1,120 63 22 15 D. ccpedianum 454 19 18 63 A. hcpsetus 1 100 0 0 A. mitchilli 14,525 44 49 7 u. pygmaea 2 100 0 0 E. americanus l 100 0 0
  • c. auratus l 0 0 100 c. carpio 8 25 0 75 II* nuchalis 1,350 55 7 38 N. crysoleucas l 0 0 100 I. catus 13 30 8 62 I. nebulosus 15 69 0 31 I. punctatus 9 33 0 67 o. tau a 100 0 0 M. bilinear is 2 50 50 0 u . chuss 46 46 20 35
  • u. reqius l 100 0 0 R. marginata 343 87 2 11 s. marina 9 100 0 0 F, diaphanus 5 100 0 0 F. heteroclitus 35 77 3 20 F, majalis 12 67 0 33 M, martinica 39 64 32 4 Menidia sp. 1 0 100 0 M. beryllina 5 0 100 0
  • M
  • menidia 1,908 76 18 6 .G. aculeatus 31 87 3 10 s. fuse us 48 96 2 2 M. americana 5,743 44 8 48 M. saxatilis 221 43 5 52 L. macrochirus 18 94 0 6 M. salmoides l 100 0 0 P. annular is 4 75 0 25 P. flavescens 46 72 12 16
  • P
  • saltatrix 114 51 30 19 c. hippos 14 100 0 0 B. chrysura 3 100 0 0 c. regal is Sl,006 60 35 5 .... xanthurus 1,183 71 14 15 M. undulatus 689 32 28 40 P. cromis 238 67 4 29 c. ocellatus 2 100 0 0 M. cephalus 2 100 0 0 A. gutattus l 100 0 0
  • G, bosci 2 100 0 0 P. triacanthus 671 84 8 8 P. alepidotus 12 75 8 17 P. carolinus 9 88 12 0 P. evolans 21 85 10 5 P. dcntatus 43 86 4 10 s. aquosus 19 3 83 14 3 P, americunus 14 100 0 0 T. maculatus 9., 873 98 l l
  • A
  • schoepf i l 100 0 0 Fish Total 93,853 61 28 11 c. sapidus 2,9B8 94 5 l IA SALEM IM 1978
  • 3.1-348
  • TABLE 3.1.7-2 ANNUAL TOTALS FOR THE MORE COMMONLY IMPINGED ORGANISMS, SALEM cws Actual Estimated Estimated Species No. No. Wt. (kg) A. aestivalis 3,458 308,395 989.4 B. tyrannus 1,120 126,030 800.8 D. cepedianum 454 65,333 1,569.3 A. rnitchilli 14,525 2,049,169 4,638.2 H. nuchalis 1,350 203,655 2,357.3 w R
  • marginata 343 38,062 678.2 . I-' M. menidia 1,908 170,490 479.6 I M. americana 5,743 726,480 9,835.9 w .:::>. c. regal is 51,006 8,729,959 10,524.5 l..O L. xanthurus 1;183 128,341 1,908.2 M. undulatus 689 59,086 66.2 P. triacanthus 671 54,419 140.l T. maculatus 9,873 1,462,562 4,958.S
  • Total of common fish species 92,323 14,121,981 38,946.2 Total of all fish species 93,853 14,362,829 44,810.3 c .. sap id us 2,988 363,268 9,367.4 IA SALEM IM 1978 ** * * * * * * * * * * * * *

% Survival Species CF L D n* H. nuchalis 15 25 13 62 H. Mer.idia 7 57 43 o M. americana 46 21 9 70 Total of common fish species Total of all fish species w A. aestival is 25 65 20 15 I-' A. mi tchilli 8 44 44 12 I R. :la:::-ginata 2 100 o 0 w !-! .. 33 77 7 16 Vl T. ::iaculatus 27 100 0 o I-' Total of co::-.:::on fish species Total of all fish species CF catch frequency (number of samples in which the species ' survival: L a live: D

  • deadJ D*
  • damaged * * * * *
  • 3.1.7-3 CONTINUED Actual No. Estimated No. March (51 samples, 153 min sampled) 24 4,132 7 961 276 47,589 307 52,682 379 65,352 (77 samples, April 231 min sampled) 65 5,742 16 4,315 3 454 71 7,186 61 8,207 216 25,904 264 31,232 appeared)
  • *
  • Estimated Wt. 49.5 3.9 784.0 837.4 954.5 21. 9 13.0 6.1 67.7 32.7 141. 4 293.3
  • Weight (g) Min Max 5.0 25.4 2.0 9.4 2.2 217.3 1. 2 11.0 1.9 6.3 10.3 24.0 2.4 87.4 0.3 64.5 Length (mm) P.in Max 78 -128 73 118 53 268 63 93 58 89 129 168 63 213 23 H3 IA* SALEM IM 1978 * * *
  • * * * * * * * * * *-***
  • TABLE 3.1. 7-3 j CONTINUED

% Survival Actual Estimated Estimated Weight (g) Length (r.-.'ll) Soecies CF L D D* No. Wt. Min /.!ax Min Hax June samples i 196 min sampled) A. aestivalis 7 27 64 9 11 1,682 32.9 0.1 134. 3 38 278 B. tyrannus 43 53 37 10 251 34,034 160.4 0.2 98.3 33 188 A. mitc!:illi 55 33 59 8 3,148 487,389 1,593.l 0.1 8.1 13 93 H. nuchalis 1 100 0 0 2 280 + 0.1 0.1 3.3 33 R. r.:arginata 5 86 0 14 12 914 24.5 16.0 48.3 143 203 !-I. rnenidia 5 60 40 0 5 669 1.3 0.1 6.3 23 88 M. a:".'.ericana 16 60 20 20 20 3,213 125.8 1.8 219.0 48 24 3 c. regalis 42 44 53 3 14,087 2,250,587 2,283.l 0.1 250.6 18 253 L. 27 68 30 2 Bl 10,336 3.0 0.1 2.3 23 63 T. ;;-;aculatus 65 98 l l 4,280 637,610 1,804.5 0.2 66.2 28 H8 w Total of common fish species 21, 89 7 3,426,7i4 6,028.6 I-' Total of all fish species 22,011 3,482,551 6,515.2 I c. sapidus 3,838.6 323.0 13 193 w 54 88 11 l 558 87,422 0.7 Ul [\..) July (202 sami<les, 347 min sampled) A. aestivalis 2 100 o o 2 501 0.8 8.3 B.3 98 98 B. tyrar.nus 92 66 21 13 310 43,498 219.8 0.4 138.9 43 218 1' ** r.:i tchilli 171 40 52 7 5,393 1,010,475 2,269.2 0.1 9 .. 4 28 93 R. narginata 33 79 4 17 94 14,642 356.4 6.7 58.2 73 223 M. r.:enidia 35 69 31 0 113 11,055 8.7 0.2 6.0 28 93 M. 15 38 12 50 1'6 1,761 88.7 1.1 163.0 38 218 c. regalis 197 68 26 6 28,108 5,682,599 7,235.7 0.1 166.4 28 197 L. xanthurus 55 70 26 5 137 24,401 67.0 0.4 34.l 33 128 T. n:aculatus 186 98 l 1 2,803 554,593 1,714.0 0.8 111. 7 33 186 Total of corn.'llOn fish species 36,976 7,3*13,525 11,960.3 Total of all fish species 37,245 7,387,809 14,,.251.9

c. sapidus 124 92 6 2 \ 51,992 3,247.6 4.0 244. 7 38 183 375 CF m catch frequency (number of samples in which the species appeared)

+ less than O.l kg l survival: L u live1 D .. dead; D* m damaged SALEH IM 1978 _J % Survival Species CF L D ]\. aesti\*alis 4 20 60 B. 147 63 17 A. 297 35 59 R. rr.ar::;inata 13 89 0 H. .... e:iidin 83 70 27 H. a:::c::-icana 11 33 33 c. reoalis 357 72 20 L. xanth\.lrUS 182 69 22 w P. triacanthus 15 78 11 T. :;::i.culatus 227 90 9 I-' I Total of co!l:ll\on fish species w Total of all fish species Ul. w c. sapidus 139 95 2 A. aestivillis 2 100 0 B. tyrannus 58 73 12 A. r.i tchilli 230 52 42 R. 49 86 2 H. 74 73 24 !-!

  • a;..(!ricana 2 0 50 c. rc;-alis 260 81 11 L.

79 51 27 H. 10 88 0 P. t:-iacanthus 73 84 B T. naculatu!l 164 99 0 Total of fish soecies Total of all fish species c. sa;:iidus 153 97 1 CF = catch frequency (number of samples in which the + .. less than 0 .1 kg survival: L a liveJ D

  • dead1 D*
  • damaged * * * * *
  • D* (400 20 20 6 11 3 33 8 9 11 1 3 (337 0 15 6 12 3 50 8 22 12 8 1 2 TABLE 3.1. 7-3 CONTINUED Actual Estimated No. August samples, 522 min sampled) 5 214 304 25,378 1,999 183,207 15 1,110 215 18,317 11 643 6,050 5.77,135 361 31,172 28 1,645 873 81,516 9,861 920,337 9,977 944,912 223 19,587 September samples, 467 min sampled) 2 384 97 8,097 1,878 164,871 88 8,105 145 12,024 2 134 .2, 6 39. 207,843 105 9,124 14 1,314 612 49,355 404 37,876 5,986 499,127 6 .o.77 506,617 428 43,230 species appeared)
  • *
  • Estimated Weight (g) Length (mm) Wt. Min Max Min !lax 4.0 1.1 15.5 53 123 l09.3 1. 2 103.2 43 188 233.7 0.1 7.0 23 93 3.3 8.4 19.2 113 153 19.5 0.6 6.1 33 93 25.1 63.0 135.8 113 293 621. 0 0.2 19.2 23 253 254.3 2.5 59.8 38 198 2.8 1.2 7.6 38 83 485.6 0.7 87.6 28 163 1,758.6 1,786.5 1,309.3 0.6 . 236. 3 18 183 + 63 113 27.4 3.6 15.2 58 203 164.1 0.1 9.3 18 98 93.l 8.7 32.5 113 198 11. 0 0.4 6.3 28 98 15.l 77.6 86.0 183 193 298.4 0.1 41. 4 33 163 91. 2 4.2 89.8 58 168 0.2 0.1 i. 8 23 63 124.5 0.8 66.3 33 158 213.0 0.4 87.0 23 178 1,308.0 (, 1,053.1 355.2 0.1 215.8 8 208 IA SALEM IM 1978 * * * *
  • * * * * * % survival Species CF L D o* A. aestivalis 2 100 0 0 B. tyrannus 17 84 8 8 A. rnitchilli 129 64 28 8 R. ir.arginata 60 90 2 8 H. rnenidia 47 74 20 6 M.

3 33 0 67 c. regalis so 85 6 9 L. >:anthurus 22 26 15 59 H. ur:dulatus 25 80 10 10 w P. triacanthus 14 83 10 7 T. rnaculatus 100 99 0 1 I-' I Total of common fish species w Total of all fish species . Ul .J::>. c. sapidus 200 96 3 1 A. aestivalis 134 75 15 10 B. tyranr.us 22 72 7 21 A. rnitchilli 148 69 23 8 R. rnargir:ata 6 80 0 20 M. r.:enicia SB BS 8 7 !-!. a:-:ericana 69 45 1 54 c. regalis 5 80 0 20 L. xanthurus 74 85 2 13 M. undulatus 16 82 g 9 T. l!'.aculatus 143 98 0 2 Total of common fish species Total of all fish species c. sapidus 88 98 *o 2 CP 0 catch frequency (mµnber of samples in which the species ' survival: L .. live1 D .. dead; o* .. damaged (297 (330 *

  • TABLE 3 .1. 7-3 CONTINUED Actual Estimated No .. October samples, 419 min sampled) 2 305 24 2,685 737 82, 137 125 12,393 241 22,501 3 324 107 10,843 27 2,601 31 2,137 30 3 ,141 295 33,753 1,622 172,820 l,683 180,294 1,144 136,706 November samples, 446 min sampled) 768 96,042 29 2,561 1,331 114,109 6 444 183 25,131 .546 59,060 G 623 294 33,678 23 2,606 371 39,906 3,557 374,160 3,622 381,394 176 15,758 appeared)
  • * * *
  • Estimated Weight (g) Length (rr""n) No. Min Ha:< Min Hax 0.4 3.1 J.5 73 78 28.6 3.6 36.7 63 a 133.8 O.l 8.4 23 88 187.7 10.l 52.3 123 258 30.2 0.5 13.5 33 83 24.4 112.5 128.5 153 213 72.5 a.a 28.0 43 128 76.3 16.3 70.2 108 153 2.2 0.5 3.5 43 73 12.6 1. 5 17.7 38 98 238.8 0.3 46 .. 2 23 143 807.5 831.2 454.0 0.1 222.8 13 173 287.4 0.8 22.3 38 138 53.9 7.0 76.7 83 183 224.8 0.3 7.0 33 93 7.1 14 .1 138 188 96.7 0.9 6.7 53 168 1,715.0 2.6 184. 8 53 228 9.1 lB.7 35.6 123 158 996.2 3.9 81. 3 98 168 5.5 0.3 7.6 33 88 221.2 0.4 64.9 13 153 3,616.9 4,000.S 106.l 0.1 88.0 8 128 IA SALEH 'IH 1978 TABLE 3.1.7-3 CONTINUED

% Survival Actual Estimated Estimated Weight (g) Length (r:un) Species CF L D D* No. Wt, Min Max Min Max December (275 samples, 530 min sampled) ]\. aestivalis 137 69 19 12 2,599 203,168 640.3 0.7 34.5 53 149 B. tyrannus 50 67 10 23 105 9, 777 201. 4 3.2 194.7 68 238 D. c-.'><Jed ianum 58 44 8 48 126 9,666 241. 4 3.2 138. 3 68 218 ;,. ::iitc!iilli 17 26 21 53 19 2,151 6.5 1.0 5.0 43 83 I!. 57 69 2 29 189 22,639 214 .8 2.0 28.5 63 138 M. r::"nidia 155 7B 16 7 994 79,124 306.6 0.7 10.5 48 193 H. a::-er-icana 217 72 6 22 2,820 218,716 3,540.4 0.6 263.2 48 238 c. 9 33 11 56 9 329 4.7 3.2 27.6 68 143 L. 71 68 4 28 178 17,029 420.2 6.8 68.4 83 173 w !-!. u:!dulatus 116 27 29 44 608 51,024 57.7 0.1 5.7 28 88 P. tr-iac.:ir. thus 1 100 0 0 1 278 0.2 1. 3 1.3 38 38 I-' .... l:':;:icula ttos 159 98 1 1 783 67,973 248.1 0.1 45.4 13 123 I w Total of cc::'l!:lan fish species 8,431 681,874 5,882.3 lT1 lT1 Total of all fish species 8,884 720,100 5,994.0 c. sapidus 50 96 2 2 84 B,573 56.6 0.1 50.7 13 98 CF a catch frequency (nwnber of samples in which the species appeared) i su...--vi val: L "' liveJ D a dead; D* .. damaged IA SALEM IM 1978 * * ** * * * * * * * *

  • T:"lr1LF.

J.l.7-4 r,C'l'Ui\L NUMDl:H ()[-' ;,rECrMENS 'l'i\KF.N IN HIP I S;\!-U'LES l\T THE: CHS IN 1978 Snccies J F M A M J

  • l\. ror;trt1ta 21 '.) 2 25 9 c. occunicn3 A. acstivalis 3 l GS ll l\. p,;cucloharcngus 3 l l\.
n. tyrannus 251 D. ccpcdi;:rnum 320 8 l\. hcpsetus l\. rnitchilli 4 lG 3,148
  • u. pygmaea l E. amcricanus l c. auratus r.. carpio l 5 1 H.* nuchalis 756 379 24 2 N. crysoleucas l I. catus 4 s I. nebulosus 4 2 I. punctatus 6 1 C). tau
  • M. bilinear is 2 u. chuss 26 2 9 6 u. rcqius R. marginata 3 12 s. marina F. diaphanus 1 F: heteroclitus 8 4 2 3 3 F. majalis l 10 H .. martini ca 3
  • Menidia sp
  • 1 M. beryllina 1 M. menidia 3 2 7 5 G .* aculaetus

-5 25 l s. fuscus 2 2 M, americana 200 l, 778 276 71 20 M. saxatilis 18 88 21 1 L. macrochirus 3 1 M. salmoides

  • P
  • annular is 4 P. flavesccns is 10 l 2 3 P. saltatrix
30. c. hippos B. chrysura c. regalis 14 ,087 L. xanthurus 81 M. undulatus 13 P. cromis c . ocellatus
  • M. cei;::halus l\. gutattus G. bosci P. triacanthus.

P. alepidotirn P. carolinus P. cvolans P. dcntatus 9 s. nquosus 52

  • P . arncricanus T. rnaculatus 3 61 4,290 A. achoepfi Fish Total l,409 2,303 379 264 22,011 No. of species 20 17 12 l!! 22 c. aapidus 558
  • Ill. SJ\f,EH IM 1979 3.1-356
  • J A, rostrata 5 c. oceanicus A. aestivalis 2 A. pseudoharengus l A. sapidissima B. tyr<innus 310 D. cepedianum A. hepsetus A. mitchilli 5,393 u. pygmaea E. americanus
c. auratus c. carpio l H. nuchalis N. crysoleucas I. catus l I. nebulosus 4 I. punctatus
o. tau M. bilinear is u. chuss u. reqius R. marginata 94 s. marina 3 F. diaphanus F, heteroclitus F. majalis J*L martini ca 22 Menidia sp. M. beryllina 1 M .. menidia 113 G, aculaetus
s. fuscus l M, amcricana 16 H. saxatilis L. macrochirus M. salmoides P. annular is P. flave*scens 2 P. saltatrix 48 c. hippos B. ch!"ysura
c. rcgalis 28,108 L. xanthurus 137 J.I. undulatus P. cromis 7 c. ocellatus M. cephalus A. gutattus G. bosci P. triacanthus P. alepidotus P, carolinus P. evolans 2 P, dentatus 32 s. aquosus 139 P, ami;ricanus T. maculatus 2, 80.1 A. schocpfi Fish Total 37,245 No. of Rpccics 24 c. sapidus 375 Tl\!1I,F.

J,l.7-4 CONTINUED ...!!... ...L 0 18 e 7. l 5 2 2 2 l 304 97 24 l 1,999 1,878 737 2 6 l l 15 88 125 6 2 1 3 11 2 2 l 215 145 2.41 3 15 18 11 2 3 l l 27 8 l 8 3 J l 1 6,050 2,639 107 361 105 27 14 31 27 10 2 l l l l 1 28 612 30 3 9 2 7 7 12 l l l l 12 l 873 404 295 l 9 ,977 6 ,077 1,603 28 29 28 223 428 1,144 3.1-357 *

  • N Total BJ 83 216
  • 2 3 768 .2,599 J,458 5 32 44 l 13 15 29 105 1,120 126 454 l 1,331 19 14,525 1 2
  • l 1 l 8 189 1,350 .l 13 3 15 2 9 l 8
  • 2 2 46 l l 6 343 9 1 1 5 11 35 1 12 1 39 l
  • 5 183 994 1,908 31 7 48 546 2,820 5, 743 2 90 221 2 12 18 l l 4
  • 12 46 114 14 l J 6 9 51,006 294 178 1,183 23 608 689 11 181 238 2 2 2
  • l 2 1 671 12 9 21 l 43 1 193 14 e1 371 703 9,873 l 3,622 8,084 93,853 21 33 59 176 84 2,988 Il\ Sl\J,F.M IM 1978 * *
  • TA!3LE 3 .1. 7-5 ACTUAL NUMOER OF SPECIMENS TAKEN IN IMPINGEMENT SAMPLES AT THE SALEM SWS IN 1978 Species J F M A M J
  • A
  • rostrata 10 6 5 13 11 A. aestival is J 67 89 3 2 A. pseudoharengus 3 1 2 B. tyrannus l 9 95 c. cepedianum 362 1 1 A. mitchilli 5 41 u. pygmaea 2 2 E
  • americanus 1 1
  • c. carpio 2 3 2 l H. nuchalis 208 93 a l l I. catus l I. nebulosus 4 2 l I. punctatus 2 1 2 o. tau 3 M. bilinearis l 1 u . chuss 12 50 6 5
  • R. rnarginata 8 13 2 s. marina F. heteroclitus 10 5 7 F. majalis l 48 M
  • martinica
  • M. rnenicia 1 l s G. aculeatus 1 4 1
  • s . fuscus M. americana 154 415 183 26 6 14 M. saxatilis 3 25 7 1 c. stria ta 2 5 L. gibbosus 1 L. macrochirus 4 2 2 P. annularis 2 2 2 l 4 P. nigromaculatus 2 l
  • P. flavescens 28 a 8 6 P. saltatrix 4 B. chrysura c. regalis 2,543 L. xanthurus l 3 M. undulatus 2 P. cromis A. gutattus
  • G
  • bosci P. triacanthus P. carolinus 1 P. evolans E. microstomus 1 P. dentatus 2 5 l P. oblongus s. aquosus 20
  • P
  • americanus T. maculatus l 22 31 165 Fish Total 316 555 409 182 137 3,102 No. of species 23 ll 19 18 15 19 c. sapidus l 12 13
  • IA SALEM IM 1978 3.1-358
  • Species J A A. rostrata 2 7 A. aestivalis 1 A. pseudoharengus 1 D. tyrannus 76 5 c. cepedianum A. mitchilli 332 36 u. pygmaea E. am!'!ricanus
c. carpio l H. nuchalis I. catus I. nebulosus 2 2 I. punctatus
o. tau M. bilinearis
u. chuss R. margin a ta 11 2 s. marina l F. heteroclitus F, rnajalis M. martini ca 2 M. menidia 23 2 G. aculeatus
s. fuscus 1 2 M. americana 4 M. saxatilis 1 c. stria ta L. gibbosus L. rnacroch!iru*s P. annular is *p. nigromaculatus 2 P. flavescens P, saltatrix 9 2 B. .chrysura
c. regal is 3,751 12B L. xanthurus 10 28 M. undulatus P. cromis A. gutattus G. bosci P. triacanthus 1 P. carolinus P. evolans E. rnicrostomus P. dentatus 3 l P, oblongus s. aquas us 77 P. americanus T. maculatus 141 27 Fish Total 4,449 247 No. of species 17 17 c. sapidus 13 9 TABLE 3 .1. 7-5 CONTINUED s 0 N J 7 . 23 5 4 J 15 12 10 l l 5 1 2 1 *2 10 l 2 12 1 1 12 3 1 23 12 20 1 1 1 2 4 2 1 1 1 l 2 l 7 10 17 5 81 84 85 11 21 13 17 257 41 3.1-359 D 14 99 2 6 20 l 16 l 1 l. 67 274 5 1 8 127 23 1 15 682 19 6 . .1
  • Total 76 267 9. 206 364
  • 661 4 2 9 327 l 13 5 *1 3 2 73 42 1 24 50
  • 2 105 6 15 1,091 42 7 1
  • B 11 5 50 15 2 6.,439 105
  • 130 24 1 3 7 2 1 2
  • 13 2 98 7 434 J.0,829 49
  • 369
  • IA SALEM IM 1978 *
  • * * * * * * * * * *
  • TABLE 3.1.7-6 ANNUAL TOTALS FOR THE MQnE COMMONLY IMPINGED ORGANISMS, SALEM SWS. Species ActuaL Estimated Eatimated
  • No. No. Wt. peg> A. aestival is 287 668 4.27 B. tyrannu*s 206 496 5.29 D. cepedianum 364 915 20.59 A. mitchilli 681 l,592 4.66 e. nuchalis 327 709 8.22 M. americana l,091 2,SBO 20.66 w c. regalia 6,439 15,024 20.40 I-' I L. xanthurus w 105 250 6.85 cJ) M. undulatus 0 130 315 o. 32 T. maculatus 434 1,015 5.64 Total of more coJD111on fishes 10,084 23,564 96.90 Total of all fish species 10,829 25,423 137.0l c. sapidus 369 857 16.93 IA SALEM IM 1978 w f-' I w O'I f-'
  • TABLE 3 .1. 7-7 IMPINGEMENT DATA ON THE MORE COMMON SPECIES, SALEM SWS Actual Estimated Estimated Species CF No. No. Wt. (Kg) January (13, 24-hr samples) A. aestivalis 2 3 7 0.02 D. cepedianum 12 362 845 19.30 H. nuchalis 12. 208 422 5.15 M. a;nericana 13 154 368 2.39 L. xanthurus l 1 2 0.02 M. undulatus 1 2 5 + Total of more common fishes
  • 730 1,649 26.88 Total of all fish species 816 1,907 31.69 February (12, 24-hr samples) D. cepedianum l 1 2 0 .11 H. nuchalis 12 93 228 2.44 M. americana 12 415 973 6.76 Total of more common fishes 509 1,203 9. 31 . Total of all fish species 555 1,312 11.18 CF catch frequency (number of 24-hr samples in which the species appeared)

+ a less than 0.01 Kg * * * * * * *

  • Weight ( g) Length (mm) Min Max Min Max 1. 7 4.5 63 88 8.4 161.5 83 208 1.5 27.1 48 133 2.3 78.2 58 163 9.9 9.9 83 83 l.4 l.6 43 43 46.1 46.l 158 158 l.l 27.6 63 163 1.1 121.B 53 198 IA SALEM*IM 1978 * * * * *
    • * * * *
  • Actual Species _ff_ No. A. aestivalis 3 67 D. cepedianum 1 1 H. nuchalis 5 8 M. americana
14. 183 T. maculatus l 1 Total of more common fishes 260 w Total of all fish species 409 I-' I w O'I IV A. aestival is 5 89 B. tyrannus 1 1 A. rnitchilli 2 5 H. nuchalis 1 1 M. atiericana 7 26 T. maculatus 11 22 Total of more common fishes 144 Total of all fish species 182 c. sap id us 1 l CF " catch frequency (number of 24-hr samples + m less than 0.01 Kg *
  • TABLE 3.1.7-7 CONTINUED
  • Estimated Estimated No. Wt. (K9) March ( 14, 24-hr samples) 134 0,53 2 0 .11 17 0.20 406 4.16 2 + 561 5.00 896 8.43 April (12, 24-hr samples) 230 1.81 2 0.23 12 0.03 2 0.04 69 0.40 53 0.46 368 2.97 474 6.01 2 + in which the species appeared)
  • * * *
  • Weight (g) Length (mm) Min Max Min Max 2.4 9.2 53 108 44.0 44.0 158 158 3.4 20.l 83 128 1.9 198.6 53 223 1.4 1.4 43 43 1. 7 222.4 38 258 99.0 99.0 188 188 1.0 2.8 58 73 16.5 16.5 113 113 3.0 13 .4 53 98 51.2 33 133 2.0 2.0 33 33 IA SALEM IM 1978 TABLE 3.1.7-7 CONTINUED Actual Estimated Estimated Weight (g) Length (mm) Species CF No. No. Wt (Kg) Min Max Min Max May ( 14, 24-hr samples) A aestivalis 3 3 6 0.89 62.5 194.0 188 263 B. tyrannus 3 9 17 0.91 14.3 114.4 108 193 A. mitchilli 11 41 95 0.25 0.9 6.8 43 88 M. 'americana 4 6 13 0.31 3.5 95.6 73 188 T. maculatus 10 31 66 0.53 0.1 127.5 28 158 Total of more common fishes 90 197 2.89 w Total of all fish species 137 301 8.39 I-' c, I sap id us 7 12 27 0.14 0.3 13.7 23 58 w Ol w June (12, 24-hr samples) A. aestivalis 2 2 5 0.07 12.0 17.7 98 108 B. tyrannus 11 95 198 1. 02 0.2 72. 7 33 173 A. mi tchilli 11 229 484 1. 63 0.2 6.7 53 88 H. nuchalis l l 2 0.07 31.6 31.6 103 103 M. americana 9 14 32 1. 71 9.1 113.l 43 183 c. regal is 5 2,543 5,091 5.28 O.l 115 .o 23 233 L. xanthurus 2 3 7 + O.l 0.3 28 38 T. maculatus
11. 165 374 1.04 0.4 44.6 33 128 Total of more common fishes 3,052 6,193 10.82 Total of all fish species 3,102 6,294 17.00 c. sap id us 6 13 30 1.04 6.4 88.5 43 188 CF a catch frequency (number of 24-hr samples in which the species appeared)

+ "" less than 0.01 Kg IA SALEM IM 1978 * * * * * * * * * * * * * ------------

  • * * * * * * * * *
  • TABLE 3.1.7-7 CONTINUED Actual Estimated Estimated Weight (9) Length (m.11) s2ecies CP' No. No. Wt (Kgl Min Max Min Max July (13, 24-hr samples) A. aestival is 1 1 2 0.03 11.5. 11.5* 93 93 a. tyrannus 12 78 205 1.19 1.1 33.5 43 143 A. mitchilli 13 332 828 2.22 1.2 5.2 53 88 M. americana 4 4 10 0.25 27.1 78.0 43 178 c. regal is 13 3,751 9,363 13 .86 0.4 7.6 33 98 L. xanthurus 6 10 23 . 0.15 0.5 22.4 43 113 'I'. maculatus 12 141 346 1.16 0.7 16.l 38 93 w Total of more common fishes 4,317 10, 777 18.86 Total of all fish species 4,449 11,097 21.29 f-' I c. sapidus 4 13 30 1.31 9.2 125.0 53 158 w O"I "'° August (14, 24-hr samples) a. tyrannus 5 5 12 0.26 1.9 13.3 58 118 A. mitchilli 11 36 81 0.19 0.4 4.5 33 78 c. regalis 13 128 527 1.14 0.3 6.2 33 93 L. ,. xanthurus 11 28 60 1.52 0.s 59.'l 83 153 'I'. maculatus 7 27 63 0.88 2.6 80.1 58 163 Total of more common fishes 224 743 3.99 Total of all fish species 247 805 6003 c. sapidus 6 9 20 1.71 23.6 146.5 78 193 CP .. catch (number of 24-hr samples in which the species appeared)

+

  • less than .01 g
  • IA SALEM IM 1978 TABLE 3.1.7-7 CONTINUED Actual Estimated Estimated Weight (g) Length (mm) SEecies CF No. No. Wt. {Kg) Min Max Min Max September (12, 24-hr samples) B. tyrannus 3 5 12 0.45 8.7 105.6 93 208 A. mitchill1 8 15 39 0.07 0.3 4.9 33 83 M. arr.ericana 1 1 2 0.52 223.0 223.0 253 253 c. regal is 6 12 33 0.11 1.2 3.3 53 83 L. xanthurus 10 23' 59 1. 88 10.6 73.4 93 158 T. maculatus 6 10 23 0.62 0.6 97.5 38 183 Total of more common fishes 66 168 3.65 w Total of all fish species 81 204 3.76 I-' c.

8 17 39 0.51 l.l 17.2 18 93 I w en lJl October (14, 24-hr samples) B. tyrannus 2 4 10 0.11 5.2 15.1 73 98 l\, mi tchilli 7 12 28 0.07 0.8 10.0 48 98 M. americana 2 2 5 0.32 55.2 84.0 163 183 c. regal is 3 3* 6 0.01 3.0 4.3 73 98 L. xanthurus 8 12 28 1.45 14.l 88.9 113 168 H. undulatus 1 1 2 + 1.6 1.6 58 58 T. maculatus 8 17 40 0.57 0.6 62.2 33 153 Total of more common fishes 51 119 2.53 Total of all fish species 84 193

c. sapidus 14 257 601 1.04 0.2 51.4 13 113 CF = catch frequency (number of 24-hr samples in which the species appeared)

+ less than O.Ol Kg . IA SALEM IM 1978 * * * * * * * * * * * * * *

  • * * * * * * * * * * * *
  • TABLE 3.1.7-7 CONTINUED Actual Estimated Estimated Weight ( g) Length (mm) seecies CF No. No. Wt. (Kg) Min Max Min Max November (13, 24-hr samples) A. aestivalis 8 23 46 0.18 1.6 24.6 63 138 B. tyrannus 2 3 7 0.19 11. 7 52.4 93 158 A. mi tchilli 8 10 . 23 0.20 l. 2 3.6 58 78 M. americana 3 12 20 0. 72 19.l 84.8 118 163 c. regal is 1 l 2 + 2.9 2.9 63 63 L. xanthu-us 9 20 41 l. 07 16.6 47.4 98 143 T. maculatus 5 5 11 0.11 0.8 32.4 38 123 Total of more common fishes 74 150 2.47 Total of all fish 85 169 4.15 w I'--' c. sap id us 9 41 94 11.17 0.4 28.2 18 58 I . w 0) December 0) (10.5, 24-hr samples) A. aestivalis 7 99 238 0.74 1.5 5.2 58 88 B. tyrannus 5 6 33 0.93 3.7 148.0 93 223 D. cepedianum 6.5 20 66 l. 07 3.7 117 .8 73 218 A. rnitchilli 3 l 2 + 3.0 3.0 73 73 H. nuchalis 5 16 38 0.30 1.6 20.2 63 133 M. americana 9.5 274 682 3.12 1.3 38 .1 . 43 158 c. regal is l l 2 + 3.3 3.3 68 68 L. xanthurus 4 8 30 0.76 5.5 50.l 78 153 M. undulatus 4.5 127 308 0.32 0.1 3.8 23 73 T. maculatus 8 15 37 0.27 1.2 14.3 33 93 Total of more common fishes 567 1,436 7.51 Total of all fish species 682 1, 771 13.BO c. sapidus 3 6 14 0.01 o.s 2.7 18 33 CF : catch frequency (number of 24-hr samples in which the species appeared)

+ "' less than 0.01 Kg IA SALEM IH 1978

  • Total fish "d . soooooo C) "'° .s g, * .§ I 1llOOCO S:I "d
  • G) .. c .§ &i 10000
  • 1000 I J F M A M J J A s 0 N D J 20000 * * "Cl G) 1:111 '1 -Ile .§ 1000 -Cl) * .!al ...., .. .ti CD -II) 1 a: 'ti G) soo .. . c .§ * .... J F M A M J J A s 0 N D J * ., Weekly estimated number and weight I ; PUBLIC SERVICE ELECTRIC AND GAS COMPANY . of all impinged fishes, Salem CWS *-' SALEM NUCLEAR GENERATING STATION 1978 1
  • I Figure 3.1.7-1 i ,, 3.1-367 *
  • * :IQl.')00 ll)
  • t:O .s Blue crab i:'J.. .§ li)()Q s 9 i::i 2CO * "Cl <D § 10 * :s 1 J F M A M J J A s 0 N D J 20000 * :COD <D tdl i:i -.§ * -100 t:G ,.A "II -qi )I: 10 1f * .§ 1
  • J F M A M J J A s 0 N D J ** Weekly estimated number and weight PU13LIC SERVICE ELECTRIC AND GAS COMPANY of impinged blue crab, Salem CWS -SALEM NUCLEAR GENERATING STATION 1978 Figure 3.1.7-2 3.1-368 *

! .* * * * * * .* * * * *

  • 3.1.8 Entrainment of Planktonic Organisms (ETS Section 3.1.2.3) In accordance with Section 3.1.2.3 of the ETS, entrainment studies were conducted in 1978. The continuing objective is to estimate the number and percent survival of planktonic organisms which pass through the Salem Unit l circulating water system (CWS). Planktonic organisms included are fish eggs and larvae, microzooplankton, and macroinvertebrates . 3.1.8.l Summary MICROZOOPLANKTON Abundance Studies A total of 141 rnicrozooplankton samples was collected in 3 1978. Mean abundance per sampling date ranged 3 from 3,978/rn on November 21-22 to a peak density {105,057/rn ) on July 12-13. Mean density was generally lower mid-September through mid-December (3,978 to than previous months. The most taxa which comprised 76.7 percent of the total catch were Rotifer spp., copepod nauplii, Acartia tonsa, Gastropoda (veliger), and Pseudodiaptomus coronatus
  • Rotifer spp. comprised 28.6 percent of the total catch. It occurred from February through mid-August and mi2-october through mid-December with peak density (74,378/m

+ 31,248) on March 16-17. -Copepod nauplii comprised 17.9 percent of the total catch

  • It was most abundant from mid-March through early September with peak density (29,713/mj

+/- 16,616) on April 19-20. A. tonsa comprised 11.8 percent of the total catch. It was collected from la1e June through mid-December with peak density (15,711/m + 7,711) on July 12-13

  • Gastropoda (veliger) comprised 10.l percent of the total catch *. It was co1lected from June through October with peak density (15,266/m

+ 4,733) on August 31-September 1

  • 3.1-369 P. coronatus comprised 8.3 percent of the total catch. It occurred in March and from June through mid-December with peak density (26,952/m

+ 21,890) on July 12-13. Other abundant taxa, which together comprised 21.2 percent of the total catch, were: Ectinosoma spp., Polychaeta (eggs and larvae), Eurytemora affinis, Cirripedia (nauplii and cypris larvae) and Nematoda. Survival Studies Thirty-four paired intake and discharge microzooplankton samples were collected during three 24-hr sampling periods in 1978. A total of 2,754 mic3ozooplankters representing 39 taxa were collected in 14.5 m of water filtered. Abundant taxa were copepod nauplii, Euryternora affinis, Acartia tonsa, Gastropoda, and Ectinosoma spp. Copepod nauplii were collected on all sampling dates. During April 19-20, mean percent live at 0 hr was 81 in intake samples and 92 in discharge samples; at +12 hr it was 80 and 81, respectively. During June 28-29, the mean percent live at 0 hr was 71 in intake samples and 72 in discharge samples; at +12 hr it was 90 and* 75, respectively. During September 13-14, the mean percent live at 0 hr was 91 in intake samples and 81 in discharge samples; at +12 hr it was 33 and 55, respectively. E. affinis (copepodid) was collected during April 19-20 and June 28-29. During April 19-20 the mean percent live at 0 hr was 87 in intake samples at +12 hr it was 77. The mean percent live at 0 hr was 83 in discharge samples; at +12 hr it was 100. During June 28-29, mean percent live at 0 hr was 85 in intake samples and 82 in discharge samples; at +12 hr it was 61 and 81, respectively. A. tonsa (copepodid) was collected on June 28-29 and September 13-14. During June 28-29, the mean percent live at 0 hr was 50. in intake samples.and 69 in discharge at +12 hr it was 60 and 87, respectively. During September 13-14r the mean percent live at 0 hr was 76 in intake samples and 83 in discharge samples; at +12 hr it was 50 and 62, respectively. Mean percent live during both dates was lower in intake samples than in discharge samples. Gastropoda (veliger) was collected only during the September 13-14 sampling date. Mean percent live at 0 hr was 71 in intake samples and 88 in discharge samples; at +12 hr it was 64 and 66, respectively. 3.1-370 * * * * * * * * * * *

  • * * * * * * ** * * * **
  • Ectinosoma spp. was collected only during September 13-14. Mean percent live at 0 hr was 81 in intake samples and 88 in discharge sarnplesi at +12 hr it was 87 in intake and discharge samples
  • MACROINVER'TEBRATE PLANKTON Abundance Studies A total of 1,793,350 macroplankters representing 58 taxa were collected in 128 macroinvertebrate plankton samples 1978. Mean density per sampling date from 176/lOOm on March 2-3 to peak density (85,137/lOOm ) on September 13-14. Mean density was 3 greatest from April to September (7,283 to 85,137/lOOm ) and 21-22 through December (9,591 to 10,865/lOOm ) . The most abundant taxa, which comprised 92.8 percent of the total catch were: Neomysis americana and Rhithropanopeus harrisii
  • americana comprised 81.6 percent the total catch. Densitv was low in March (ca. 40/lOOm ), it increased

-. through June 28-29 (43,076/lgom 27,662) and peaked on September 13-14 (77,695/lOOm + 36,101). R. harrisii comprised 11.2 percent of the total catch. Greatest density occurred 3 from June through mid-August. Peak density {14,299/lOOm + 15,258) occurred on July 12-13 . Other abundant taxa which comprised 6.6 percent of the total catch were: Gammarus spp., Edotea triloba, Corophium spp., Brachyura, Leucon americanus, Palaemonetes pugio, Crangon septemspinosa, and Hydrozoa (medusae).

  • Survival Studies Twenty-three paired intake and discharge macrozooplankton survival samples were collected during three 24-hr sampling periods in 1978: 5 pairs during April 19-20, 7 pairs during June 28-29, and 11 pairs during September 13-14. A total of 46,93! macroplankters representing 28 taxa was collected in 105 m of water filtered.

The most abundant taxa were: Neomysis americana, Gammarus spp., and Rhithropanopeus harrisii. 3.1-371 N. americana was collected on all three sampling dates. During April 19-20 the mean percent live at 0 hr was 71 in intake samples and 70 in discharge samples; at +12 hr it was 33 and 43, respectively. During June 28-29, mean percent live at 0 hr was 81 in intake samples and 95 in discharge samples; at +12 hr it was 71 and 84, respectively. During September 13-14 the mean percent live for juveniles at 0 hr was 98 in intake samples and 96 in discharge samples; at +12 hr it was 94 and 51, respectively. The mean percent live for adults at 0 hr was 99 in intake samples and 83 in discharge samples; at +12 hr it was 92 and 74, respectively. Gammarus spp. was collected during all three sampling dates. During April 19-20, the mean percent live at 0 hr was 87 in intake samples; at +12 hr it was 91. Mean percent live (90) in the discharge samples remained unchanged throughout the latent period. During June 28-29 the mean percent live for juveniles at 0 hr was 88 in intake samples; at +12 hr it was 87. Mean percent live at 0 hr was 86 in discharge samples; at +12 hr it was 89. During September 13-14, the mean percent live for juveniles at 0 hr was 97 in intake samples and 99 in discharge samples; at +12 hr it was 96 and 98, respectively. R. harrisii (zoea) was collected during the June 28-29 and September 13-14 sampling dates. Initial and +12 hr survival was high in all samples. During June, the initial mean percent live in the intake (98) samples was unchanged at +12 hr. Mean percent live at 0 hr was 96 in the discharge samples; at +12 hr it was 95. During September 13-14, the mean percent live at 0 hr in intake samples was 97; at +12 hr it was 93. Mean percent live at 0 hr was 100 in discharge samples; at +12 hr it was unchariged

  • . ICHTHYOPLANKTON Abundance Studies A total of 135 ichthyoplankton abundance samples was collected in 1978. Of the 29,984 specimens of 19 taxa collected, bay anchovy (P.nchoa mitchilli), naked goby (Gobiosoma bosci), weakfish (Cynoscion regalis), and silversides (Membras sp./Menidia spp.) were most abundant.

3.1-372 * * * * * *. * * * * *

  • * * * * * .* * * * **
  • Bay anchovy comprised 90.2 percent of the total catch. Eggs, larvae, young, or adults were collected from late June through late November.

Eggs and larvae were most abundant in (mean density.per date= + 17.842 and 6.146/m + 2.119, respectively), young in late August-early September-(1.127 + 1.045), and in mid-September (0 oar . 0 -Jo = .

  • Naked goby comprised 3.7 percent of the total catch. Larvae or young were collected.from late June through September and in late November.

Larvae were abundant in mid-July (mean density per date = 0.574/m + 0.233) and young in late August-early September (0.043 0.040) . Weakfish comprised 3.7 percent of the total catch. Larvae or young were collected from late June through mid-September and in early November. A single egg was collected in July. Larvae and young were most abundant in late 3 June (mean density per date= 0.613 + 0.398 and 0.636/m + 0.513, respectively). -Silversides comprised 1.5 percent of the total catch. Eggs or larvae were collected from late June through late early September. Eggs most abundant in mid-July (mean density per dat3 = 0.007/rnJ + 0.008) and larvae in August (0.465/m + 0.758). Survival Studies Twenty-three paired intake and discharge ichthyoplankton survival samples were collected during three 24-hr sampling periods in 1978. Of the 319 specimens of nine species collected, young bay anchovy and larval and young weakfish were most abundant. The mean percent live for bay anchovy young collected on September 13-14 at the intake and discharge was similar both initially (75.0 and 76.0, respectively) and after the 12-hr latent mortality period (20.0 and 20.0, respectively). The initial mean percent live for weakfish larvae and young collected on June 28-29 at the intake (30.2 and 58.8, respectively) was lower than at the discharge (89.5 and 79.6, respectively). This relationship continued through the 12-hr period with only slight decreases in mean percent live at either location. The reasons for the relatively low percent live for weakfish larvae and young in the intake samples are not known. 3.1-373 3.1.8.2 METHODS AND MATERIALS Equipment and procedures used to collect and process entrainment samples in 1978 were the same as those employed in 1977. For a detailed description see Volume 2 of the 1977 Annual Environmental Operating Report. Briefly, entrainment samples were collected at intake and discharge locations using a high capacity centrifugal pump in combination with an abundance chamber and a larval table (Figs. 3.1.8-1 through 3.1.8-4). Microzooplankton and macroinvertebrate abundance samples were processed at the Delaware laboratory in the same manner as the riverine collections (see Sections 3.1.2 and 3.1.3). Survival samples were processed on site at the field laboratory, and all percentages were calculated on the basis of initial total sample size. High concentrations of detritus and large numbers of macroinvertebrates in survival samples occassionally required extra processing time and subsequent deviation from the prescribed schedule of latent mortality observations. Conditions permitting, the entrainment monitoring program is scheduled monthly September through May and semimonthly June through August. Replicate samples are to be taken every 4 hr during a 24-hr period. Intake and discharge collections are synchronized with CWS passage time to ensure sampling the same water mass. Intake samples for abundance and survival determinations are integrated with depth and taken inboard of the vertical traveling screens. Discharge samples (for survival only) are collected from a standpipe on the CWS discharge pipe at a point approximately 152 m upstream of the effluence into the river.

  • Entrainment studies in 1978 were limited in number and scope because of weather, station operating schedule and mechanical problems.

Extreme cold and icing during January and February precluded survival sampling. Abundance* samples were not collected in January because of traveling screen failures. Salem Unit 1 was not in commercial operation from March 17 through June 13 and from October 10 through November 13. Scheduling of sampling during these periods was hampered by intermittent circulating pump operation and other maintenance related problems. Microzooplankton, macroinvertebiate, and ichthyoplankton abundance samples were collected as per the ETS schedule during February-April and late June through December. However the number of collections per date during March, April, late June, October and December were fewer than specified because of mechanical problems with CWS components or sampling equipment. 3.1-374 * * * * * * *. * * * * *

  • * * * * * * ** * * **
  • Microzooplankton, macroinvertebrate and ichthyoplankton survival sanples were collected in April, late June and September.

High concentrations of macroinvertebrates and/or detritus increased the initial processing time and limited the number of samples collected during scheduled sampling periods. Survival sampling was restricted to circulating pump 12B and discharge standpipe

12. Mechanical difficulties with sampling equipment and various components of #12 CWS limited the number of survival sampling periods attempted.

Latent survival samples had, at times, higher survival estimates than samples analyzed immediately. This was due to stunned organisms recovery during holding and the precision of the analytical technique in subsample for survival estimation. Intake sample integration with depth was not attempted in 1978. Point samples were taken at between 4.6 and 6.1 m below surface. Design and mechanical problems with the integration apparatus have been rectified. However delays in equipment delivery precluded implementation in 1978. 3.1.8.3 Results MICROZOOPLANKTON Abundance Studies One hundred forty-one microzooplankton samples were collected during 14 sampling experiences from February 27 through 13, 1978 (Tables 3.1.8-1, 3.1.8-2). A total of 60 m of water was filtered and 51 taxa w3re collected. Total annual mean density was 38,676/m . Water temperature and salinity ranged from 0.6 to 28.7 C and 1.0 to 12.0 ppt, respectively

  • Mean density per sampling ranged from 3,978/rn 3 on November 21-22 to 105,057/m on July 12-13 (Table 3.1.8-1).

density was generally from through mid-December (3,978 to 30,680/m ) than previous months. The 10 predominant taxa, which comprised 97.9 percent of the total annual sample, are discussed below in order of decreasing abundance (Table 3.1.8-2). Rotifer spp. comprised 28.6 percent of the annual sample and was the most abundant microzooplankter coll3cted (Table 3.1.8-2). Annual mean density was 11,051/m. It occurred from February through mid-August and mid-October December (Table 3.1.8-1). Peak density (74,378/m + 31,248) occurred on March 16-17. It was collected at temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. 3.1-375 Copepod nauplii comprised 17.9 percent of the annual sample and was the second most abundant microzooplankter 3 collected (Table 3.1.8-2). Annual mean density was 6,915/m. It was collected on all sampling dates and was most abundant from mid-March through 3 early September (Table 3.1.8-1). Peak density (29,713/m + 16,616) occurred on April 19-20. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Acartia tonsa comprised 11.8 percent of the annual sample and was the third most abundant microzooplankter Jollected (Table 3.1.8-2). Annual me!n density was 4,574/m. Females were more abundant (2,017/m ) than copepodids (1,955) or males (582). It was collected from June through December with peak density (15,711/m + 7,711) on July 12-13 (Table 3.1.8-1). It was collected at iater temperature 5.0 to 28.7 C and salinity 4.0 to 12.0 ppt. Gastropoda (veliger) comprised 10.1 percent of the annual sample and was the fourth most abundant microzooplankter collect3d (Table 3.1.8-2). Annual mean density was. 3,900/m

  • It was coll3cted from June through October with peak density (15,266/m

+ 4,733) on August 31-September 1 (Table 3.1.8-1). It was-collected at water temperature 17.3 to 28.7 C and salinity 4.0 to 10.0 ppt. Pseudodiaptomus coronatus comprised 8.3 percent of the annual sample and was the fifth most abundant (Table 3.1.8-2). Annual mean 3 density was 3,238/m

  • Females were more abundant (1,551/m ) than males (1,095) or copepodids (592). It occurred in March and from June through mid-December with peak density (26,952/m

+ 21,890) on July 12-13 (Table 3.1.8-1). It was collected at-water temperature 0.6 to 28.7 C and salinity of 3.0 to 12.0 ppt. Ectinosoma spp. comprised 7.8 percent of the annual sample and was the sixth most abundant microzooplankter Jollected (Table 3.1.8-2). Annual density was 3,009/m. Adults .were more abundant (2,892/m ) than copepodids (117). It was on every sampling date with peak density (6,972/m + 3,166) on Julv 12-13 (Table 3.1.8-1). It was collected at water 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Polychaeta (eggs and larvae) comprised 7.7 percent of the annual sample and was the seventh most abundant rnicrozooplankter (Table 3.1.8-2). Annual density was 2,978/m . Eggs were more abundant (2,394/rn ) than larvae (584). It was collected on all sampling dates 3.1-376 * * * * * * *. ** * * ** *

  • * * * * * .* * * *
  • and most abundant from February through March 3 and November (Table 3.1.8-1).

Peak density (24,280/m + 15,856) occurred on November 1-2. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Euytemora affinis comprised 3.5 percent of the annual sa.mp.le and was the eighth most abundant (Table 3.1.8-2). Annual mean was 1,342/mJ. Copepodids were more abundant (809/m ) than males (304) or females (225). It was collected on all sampling dates (Table 3.1.8-1). Greatest density occurred from Feb3uary through July and in December. Peak density (6,663/m + 4,746) occurred on July 12-13. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt. Cirripedia (nauplii and cypris larvae) comprised 1.6 percent of the annual sample and was the ninth most abundant microzooplankter 9ollected (Table 3.1.8-2). Annual mean density was 638/mJ. Nauplii were more abundant than cypris larvae (5). It was collected from June through mid-December and was most abundant from 3 June through August (Table 3.1.8-1). Peak density (2,684/m + 1,779) occurred on July 12-13. It was collected at water-temperature 5.0 :to 28.7 C and salinity 4.0 to 12.0 ppt. Nematoda comprised 0.6 percent of the annual sample and was the tenth most abundant microzooplankter 3 collected (Table 3.1.8-2}. Annual mean density was 224/m . Greatest density occurred from February through 3 July and in September (Table 3.1.8-1). Peak density (719/m + 1,206) occurred on April 19-20. It was collected at water temperature 0.6 to 28.7 C and salinity 1.0 to 12.0 ppt.

  • Survival Studies Thirty-four paired intake and discharge samples were collected in 1978; 12 pairs during April 19-20, 10 pairs during June 28-29, and 12 pairs during September 13-14. A total of 2,754 comprising 39 taxa were collected in 14.5 m of water filtered (Table 3.1.8-3)
  • April 19-20 Nineteen taxa were collected; copepod nauplii and Eurytemora affinis copepodids were most abundant (Table 3.1.8-3).

3.1-377 Ambient water temperature ranged from 10.2 to 11.5 C and salinity ranged from 5.5 to 8.0 ppt. mean percent live for copepod nauplii in intake and discharge samples was 81 and 92, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 80 and 81, respectively, at +12 hr. Initial mean percent for E. affinis (copepodids) in intake and discharge samples was-87 and 83, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 77 and 100, respectively, at +12 hr. June 28-29 Twenty-seven taxa were collected; copepod nauplii, Acartia tonsa, and Eurytemora affinis were most abundant (Table 3.1.8-3). Ambient water temperature ranged from 21.0 to 26.8 C and condenser delta T ranged from 3.8 to 6.1 c. Salinity ranged from 4.0 to 6.0 ppt. Initial mean percent live for copepod nauplii in intake and discharge samples was 71 and 72, respectively (Table 3.1.8-3). Mean percent live in intake and discharge samples was 90 and 75, respectively, at +12 hr. Initial mean percent live for A. tonsa females in intake and discharge samples was 85 and SS, respectively (Table 3.1.8-3). Mean percent live in the intake samples decreased through all observations. Mean percent live in the intake and discharge samples was 60 and 71, respectively, at +12 hr. Initial mean percent live for A tonsa copepodids in intake and discharge samples was 50 and 69, respectively, at the intake and {Table 3.1.8-3). Mean percent live in the intake and discharge samples was 60 and 87, respectively, at +12 hr. Initial mean percent live for E. affinis copepodids in intake and discharge samples was 85 and 82, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 61 and 81, respectively, at +12 hr. 3.1-378 * * * * * * ** * * ** *

  • * * * * * .* * * * **
  • September 13-14 Twenty-one taxa were collected; Gastropoda (veliger), copepod nauplii, Acartia tonsa, and Ectinosoma spp. were most abundant (Table 3.1.8-3).

Ambient water temperature ranged from 21.2 to 31.7 C and condenser delta T ranged from 8.2 to 11.l C. Salinity ranged from 5.0 to 10.0 ppt. Initial mean percent live for Gastropoda (veliger) in intake and discharge samples was 71 and 88, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 64 and 66, respectively, at +12 hr. Initial mean percent live for copepod nauplii in intake and discharge samples was 91 and 81, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 33 and 55, respectively, at +12 hr . Initial mean percent live for A. tonsa copepodids in intake and discharge samples was 76 and 83, respectively (Table 3.1.8-3). Mean percent live in the intake and discharge samples was 50 and 62, respectively, at +12 hr. Initial mean percent live for Ectinosoma spp. in intake and discharge samples was 81 and 88, respectively 3.1.8-3). Mean percent live in intake and discharge samples was 87 at +12 hr

  • MACROINVERTEBRATE PLANKTON Abundance Studies One hundred twenty-eight macroinvertebrate plankton samples were collected on 13 sampling dates from March 2 through December 13, 1978 (Tables 3.1.8-4, 3.1.8-5).

A total of 6,857.2 cubic meters of water were filtered and 58 taJa were collected. Total annual mean density was 26,153/lOOm

  • Water temperature and salinity ranged from 0.6 to 28.7 C and 1.0 to 15.0 ppt, respectively
  • Mean density per date ranged from 176/100m 3 on March 2-3 to 85,137/lOOm on September 13-14 (Table 3.1.8-4). Mean density was 3 greatest from April through September (7,283 to 85,137/lOOm

), and 21-22 through December (9,591 to 10,865/lOOm )

  • The 10 predominant taxa which comprised 99.4 percent of the total annual sample are 3.1-379 discussed below in order of decreasing abundance (Table 3.1.8-5).

Neomysis americana, the opposum shrimp, comprised 81.6 percent of the annual sample and was the most abundant macroinvertebrate plankter collecte2 (Table 3.1.8-5). Annual mean density was 21,657/lOOm

  • It occurred from March through mid-DecJmber (Table 3.1.8-4).

Density was in March (ca 3 39/lOOm ); it increased through June 28-29 (43,076/100m 3 +/- 27,662) and peaked on September 13-14 (77,695/lOOm + 36,101). It was collected at water temperature o.6 to 28.7 C and salinity 3.0 to 15.0 ppt. Rhithropanopeus harrisii, the mud crab, comprised 11.2 percent of the annual sample and was the second most low abundant macroinvertebrate plankte3 collected (Table 3.1.8-5). Annual mean density was 2,960/lOOm

  • It occurred from April through mid-December (Table 3.1.8-4).

Greatest density occurred June through mid-August. Peak density (14,299/lOOm + occurred on July 12-13. It was collected at water temperature 5.0 to 28.7 c and salinity 4.0 to 10.0 ppt. Gammarus spp., the scud, comprised 2.2 percent of the annual sample and was the third most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5). Annual mean density was 573/lOOm

  • It occurred from March through December (Table 3.1.8-4).

Generally, density was greate3t during June through September; it peaked (1,615/lOOm + 697) on June 28-29. It was collected at water temperature-0.6 to 28.7 C and salinity 1.0 to 15.0 ppt. Edotea triloba, an isopod, comprised 1.7 percent of the annual sample and was the fourth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5). Annual mean density was 439/lOOm

  • It occurred from March through mid-December (Table 3.1.8-4).

Density was greate3t during June through early November; it peaked (3,736/lOOm + 3,595) on September 13-14. It was collected at water -temperature 1.0 to 28.7 C and salinity 3.0 to 10.0 ppt. Corophium spp., the scud, comprised 0.7 percent of the annual sample. It was the second most abundant amphipod and the fifth most abundant macroinvertebrate plankter 3 collected (Table 3.1.8-5). Annual mean density was 197/lOOrn. It occurred on all sampling dates from March through December (Table 3.1.8-4). Greatest density occurred from July 3 through August and in December. Peak density (704/lOOm + 253) occurred on August 10-11. It was collected at temperature 0.6 to 28.7 C and salinity 4.0 to 12.0 ppt. 3.1-380 * * * * * * *. * * * ** *

  • * * * * * * * * **
  • Brachyura comprised 0.7 percent of the annual sample and was the sixth most abundant macroinvertebrate (Table 3.1.8-5).

Annual mean density was It occurred June through mid-August, with peak density (l,642/lOOm + 977) on August 10-11 (Table 3.1.8-4). It was collected at water temperature 23.7 to 28.7 C and salinity 6.0 to 8.0 ppt. Leucon americanus, a cumacean shrimp, comprised 0.4 percent of the annual sample and was the seventh most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5). Annual mean density was 113/lOOm

  • It occurred from June through December, with greatest density during late through November (Table 3.1.8-4).

Peak density (763/lOOm + 592) occurred on September 13-14. It was collected at water temperature 5.0 to 28.7 C and salinity 4.5 to 15.0 ppt. Palaemonetes pugio, the grass shrimp, comprised 0.4 percent of the annual sample and was the eighth most abundant macroinvertebrate plankter colle3ted (Table 3.1.8-5). Annual mean density was 109/lOOm

  • It occurred from April through December, with greatest density July and August (Table 3.1.8-4).

Peak density (344/lOOrn + 150) occurred on August 10-11. It was collected at water tempera tu re 5. 0 to 28.7 C and salinity 4.0 to 15.0 ppt. Crangon septernspinosa, the sand shrimp, comprised 0.3 percent of the annual sample and was the ninth most abundant macroinvertebrate plankter coll3cted (Table 3.1.8-5). Annual mean density was 77/lOOm . It occurred on all sampling dates from March through 3 December with peak densities on 3 June 28-29 (391/lOOm + 517) and September 13-14 (360/lOOm + 366) (Table 3.1.8-4). It was collected at water temperature 0.6 to 28.7 C and salinity 4.0 to 15.0 ppt. Hydrozoa (medusae) comprised 0.2 percent of the annual sample. It was the most abundant hydromedusae and tenth most abundant macroinvertebrate plankter (Table 3.1.8-5). Annual mean density was 55/lOOrn. It was collected from August November (Table 3.1.8-4). Peak density (391/lOOm + 262) occurred on September 13-14. It was collected at water temperature 8.5 to 28.7 C and salinity 6.0*to 15.0 ppt. Survival Studies Twenty-three paired intake and discharge macrozooplankton 3.1-381 survival samples were collected; 5 pairs during April 19-20, 7 during June 28-29, and 11 during September 13-14. During the September 13-14 sampling period heavy detritus and specimen holding problems prevented .the processing of some samples. A total of 46,931 ma3roinvertebrates representing 28 taxa was collected in 105 m of water filtered (Table 3.1.8-6). April 19-20 A total of 13 taxa were collected. Neomysis americana, Gammarus spp., Hirudinea, Crangon septemspinosa, and Polychaeta were most abundant (Table 3.1.8-6). Ambient water temperature ranged from 10.2 to 11.0 C and salinity 5.5 to 8.0 ppt. There was no delta T across the condensers on this date; therefore, any plant-induced mortality must be attributed to pressure and/or mechanical effects. Initial mean percent live for N. americana in intake and discharge samples was 71 and 7IT, respectively (Table 3.1.8-6). Mean percent live in the intake samples decreased to 33 percent at +12 hr. Survival in discharge samples decreased to 43 percent at +12 hr. Initial mean percent live for Gammarus spp. in intake and discharge samples was 87 and 90, respectively (Table 3.1.8-6). Mean percent live in the intake samples was 91 at +12 hr. This increase in percent live was the result of the recovery of previously stunned specimens. Mean percent live in discharge samples was unchanged at +12 hr. Initial mean percent live for Hirudinea was 94 and 100 in the intake and discharge samples, respectively (Table 3.1.8-6). Mean percent live in intake and discharge samples at +12 hr remained unchanged. Initial mean percent live for f. septemspinosa in both intake and discharge samples was 66 (Table 3.1.8-6). Mean percent live in intake samples increased to 85 at +4 hr and 86 at +12 hr. This increase resulted from the recovery of previously stunned specimens. Mean percent live in discharge samples increased to 71 at +12 hr. Initial mean percent live for Polychaeta was 100 at both the intake and discharge (Table 3.1.8-6). This percentage remained unchanged for both intake and discharge samples throughout the 12 hr latent period. 3.1-382 * * * * * * *. * * * ** *

  • * * * * . * * * * *
  • June 28-29 A total of 18 taxa were collected.

Neomysis americana, Garnmarus spp., Rhithropanopeus harrisii, Crangon seotemspinosa, and Edotea triloba were most abundant (Table 3 .1. 8-6). Ambient water-temperature ranged from 21. O to 26.8 C and delta T across condenser 12 ranged from 3.8 to 6.1 C. Salinity ranged from 4.0 to 6.0 ppt. Initial mean percent live for N. americana in intake and discharge samples was 81 and respectively (Table 3.1.8-6)

  • Mean percent live decreased to 71 in intake samples and 84 in discharge samples at +12 hr. Initial mean percent live for Garnrnarus spp. (adult) was 73 in intake samples (Table 3.1.8-6).

No adults were taken at the discharge. Mean percent live in intake samples decreased to 62 at +12 hr. Initial mean percent live for Gammarus spp. (juveniles) at the intake and samples was 88 and 86, respectively (Table 3.1.8-6). Mean percent live in intake samples decreased to 87 at +12 hr . Mean percent live in discharge samples increased to 89 at +12 hr. Initial mean percent live for R. harrisii was 98 at the intake and 96 at the discharge: Mean percent live in intake samples remained unchanged at +12 hr; discharge samples remained virtually unchanged

  • Initial mean percent live for c. septemspinosa was 29 at the intake and 73 at the discharge:

Mean percent live in intake samples decreased to 27 at +12 hr. Mean percent live in discharge samples decreased to 66 at +4 hr and 56 at +12 hr. Initial mean percent live for E. triloba was 94 at the intake and 100 at the discharge (Table 3.1.8-6). Mean percent live in intake samples decreased to 88 percent at +12 hr. Mean percent live in discharge samples remained unchanged through the 12 hr latent period

  • September 13-14 A total of 20 taxa were collected.

Neomysis americana Gammarus spp., Edotea triloba, Rhithropanopeus harrisii, and Leucon americanus were most abundant (Table 3.1.8-6)

  • Ambient water temperature ranged from 22.2 to 23.5 C and salinity 6.0 to 9.0 ppt. Delta T across condenser 12 ranged from 7.5 to 11.4 c. 3.1-383 Initial mean percent live for N. americana (adult) in intake and discharge samples was 99 and 83, respectively (Table 3.1.8-6).

Mean percent live in intake samples decreased to 92 at +12 hr. Mean percent live in discharge samples decreased to 74 at +12 hr. Initial mean percent live for juveniles in intake and discharge samples was 98 and 96, respectively. Mean percent live in intake samples decreased to 94 at +2 hr and then remained unchanged for the remainder of the 12 hr latent period. Mean percent live in discharge samples decreased to 87 at +2 hr, 64 at +4 hr, and 51 at +12 hr. Initial mean percent live for Gammarus spp. (juveniles) was 97 in intake samples and 99 in discharge samples (Table 3.1.8-6). Mean percent live in intake and discharge samples was 96 and 98, respectively, at +12 hr. Initial mean percent live for E. triloba (juveniles) was 99 in both the intake and discharge samples (Table 3.1.8-6). Mean percent live in intake samples remained unchanged at +12 hr. Mean percent live in discharge samples decreased to 97 at +12 hr. Initial mean percent live for R. harrisii (zoea) in intake and discharge samples was 97 and 100, respectively (Table 3.1.8-6). Mean live in intake samples decreased to 93 at +12 hr; discharge samples remained unchanged. Initial mean percent live for L. americanus (adult)was 100 in intake samples and 98 in discharge samples (Table 3.1.8-6). Mean percent live in intake and discharge samples decreased to 92 and 94, respectively, at +12 hr. ICHTHYOPLANKTON Abundance Studies A total of 135 ichthyoplankton abundance samples was collected during 14 sampling experiences from February 27 through December 13, 1978 (Table 3.1.8-7). Ichthyoplankton of 19 taxa including 17,549 eggs, 10,437 1,877 young, ana 121 adults were taken in 7,203.4 m water filtered; total annual mean density was 4.163/m

  • Annual mean density for eggs, young, and adults was 2.436, 1.449, 0.261, and 0.017/m , respectively.

Taxa of which more than 100 specimens were taken are, in order of decreasing abundance; bay an6hovy, naked gobi, weakfish, and silversides. These comprised over 99 percent of the total catch and are discussed below. 3.1-384 *

  • e: I * ** * * * * * *
  • * * * * * * * * **
  • Bay anchovy comprised 90.2 of the total catch and was represented by 27,055 specimens including 17,520 eggs, 8,152 larvae, 1,272 young, and 111 adults (Table 3.1.8-7);

The annual mean density of eggs, young, and adults was 2.432, 1.132, 0.177, and 0.01S/m 5 , respectively . Bay anchovy eggs ranked first in and comprised 99.8 percent of the total egg catch (Table 3.1.8-7). Eggs were collected from June 28-29 through August 10-11 at water temperature 21.0 to 28.7 C and salinity 1*0 to 10.0 ppt. Mean density per from 0.153/m + 0.135 on July 27-28 to + 17.842 on July 12-13 (Table 3.1.8-8). Density per colle3tion on July 12-13 ranged from 5.100 to 107.320/m . Viable eggs were taken on all dates during the period of occurrence. Annual mean percent viable was 6.8 and mean percent viable per date ranged from 2.0 on August 10-11 to 12.0 on July 27-28 (Table 3.1.8-9). On July 12-13, when over 86 percent of the egg catch was collected, mean percent viable was 7.4. Bay anchovy larvae ranked first in and comprised 78.1 *percent of the total larval catch {Table 3.1.8-7). Larvae were collected from June 28-29 through October 11 at water temperature 17.3 to 28.7 C and salinity 4 5 0 to 10.0 ppt. Mean density per date 3 ranged from 0.011/m + 0.022 on October 11 to 6.146/m + 2.119 on July 12-13 (Table-3.1.8-8). per collection on July 12-13 ranged from 2.480 to 12.960/m . Bay anchovy young ranked first in and comprised 67.8 percent of total young catch (Table 3.1.8-7). Young were collected from July 12 through November 21-22 at water temperature 8.5 to 28.7 C and salinity to 12.0 ppt. Mean density per date ranged from 0.002/m + 0.005 on June 28-29 to 1.127 + 1.045 on August 31-September 1 (Table 3.1.8-8). Density per on August 31-September 1 ranged from 0.010 to 5.620/m. Bay anchovy adults ranked first in and comprised 91.7 percent of the total adult catch (Table 3.1.8-7). Adults were collected from June 28-29 through October 11 at water temperature 17.8 to 28.7 C and salinity 4 5 0 to 10.0 ppt. Mean density per date from 0.002/m + 0.004 on August 31-Septernber 1 to 0.085/m + 0.065 on September 13-14 (Table 3.1.8-8). 3 nensity per collection on September 13-14 ranged to 0.260/m . 3.1-385 Naked goby comprised 3.7 percent of the total catch and was represented by 1,119 specimens including 1,085 larvae and 34 young (Table 3.1.8-7). The mean density of larvae and young was 0.151 and 0.005/m , respectively. Naked goby larvae ranked second in and comprised 10.4 percent of the total larval catch (Table 3.1.8-7). Larvae were collected from June 28-29 through September 13-14 and on November 1-2 at water temperature 14.5 to 28.7 C and salinity 4.0 to 10.0 ppt. Mean density per date ran§ed from 0.003 on September 13-14 and November 1-2 to 0.574/m + 0.233 on July 12-13 (Table 3.1.8-8). per collection on July 12-13 ranged from 0.020 to 1.260/m

  • Naked goby young ranked fourth in and comprised 1.8 percent of the total young catch (Table 3.1.8-7).

Young were collected on July 12-13, July 27-28, August 31-September 1 and November 21-22 at water temperature 12.0 to 27.0 C and 5.0 to 12.0 ppt. Mean density per date was 0.002/m +/- 0.004 on July 2j-28, August 31-September 1, and November 21-22 and 0.043/m + 0.040 on August 31-September 1 (Table 3.1.8-8). Density per 3 collection on August 31-September 1 ranged to 0.180/m

  • Weakfish comprised 3.7 percent of the total catch and was represented by 1,096 specimens including 1 egg, 660 and 435 young (Table 3.1.8-7).

The annual mean density of eggs, and young was less than 0.001, 0.092, and 0.060/m, respectively. A single weakfish egg was collected on July 12 at water temperature 24.5 C and 3 salinity 7.0 ppt. Density in the collection was 0.020/m . The egg was not viable. Weakfish larvae ranked third in and comprised 6.3 percent of the total larval catch (Table 3.1.8-7). Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 4 3 0 to 10.0 ppt. Mean density per date from 0.006/m +/- 0.008 on August 31-September 1 to 0.613/m + 0.398 on June 28-29 (Table 3.1.8-8). Density collection on June 28-29 ranged from 0.040 to Weakfish young ranked second in and 23.2 percent of the total young catch (Table 3.1.8-7). Young were collected from June 28-29 through September 13-14 and on November 1 at water temperature 14.5 to 27.7 C and salinity 3 4.0 to 10.0 ppt. Mean density per 3 date ranged from 0.002/m + 0.005 on November 1-2 to 0.636/rn + 0.513 on June 28-29 (Table 3 .1. 8-8). Density pe:( collection on June 28--29 ranged from 0,060 to 2.160/m 3.1-386 * * * * * *. * * * * *

  • * * * * * * * * * *
  • Silversides taken in entrainment samples at Salem Unit 1 are potentially Menbras martinica, Menidia beryllina, and Menidia menidia. Although current taxonomic literature indicates subtle morphological and meristic differences, the high degree of local and individual specimen variation made identification of eggs and larvae to genus or species tenuous and impracticable.

However, young were identified to species and are discussed separately. Silversides comprised 1.5 percent of the total catch and were represented by 454 specimens including 6 eggs and 448 larvae {Table 3.1.8-7). The 3 annual mean density of eggs and larvae was 0.001 and 0.062/m , respectively

  • Silverside eggs ranked third in and comprised less than 0.1 percent of the total egg catch (Table 3.1.8-7).

Eggs were collected on July 12-13 and on July 27-28 at water temperature 24.5 to 26.6 C and sa1inity 7.0 to 10.0 ppt. Mean per date was 0.007/m +/- 0.008 on July 12-13 and 0.003/m + 0.005 on July 27-28 (Table 3.1.8-8). Annual mean percent vTable was 83.3 (Table 3.1.8-9) . Silverside larvae ranked fourth in and comprised 4.3 percent of the total larval catch (Table 3.1.8-7). Larvae were collected from June 28-29 through August 31-September 1 at water temperature 21.0 to 28.7 C and salinity 5.0 to 8.0 ppt. Mean density per da1e ranged from 0.033 on June 28-29 and July 12-13 to 0.470/rn on August 10-11 (Table 3.1.8-8). Density 3 per collection on August 10-11 ranged from 0.060 to 4.260/m

  • Young rough silversides (Membras martinica) were taken on July 12-13, August 10-11, and September 13-11 (1 specimen per date); mean density per date was 0.002/m + 0.004 on each occasion (Table 3.1.8-8).

A total of 30 specimens of Atlantic silverside (Menidia menidia) young were taken from June 28-29 through October 11 and on November 21-22 and 3 December 13. Mean density per date was highest (0.025/m + 0.033) on August 10-11. A total of four adult Atlantic silversides were taken on July 12-13, August 10-11, and August 31-September

1. 3 Mean density per date ranged from 0.001 + 0.002 to 0.003/m +/- 0.004 (Table 3.1.8-8).

Survival Studies Twenty-three paired intake and discharge ichthyoplankton 3.1-387 I_ survival samples were collected; 5 pairs during April 19-20, 7 during June 28-29, and 11 during September 13-14. A total of 143 larvae, 162 3 young, and 14 adults of 9 species were collected in 148 m of water filtered (Table 3.1.8-10). Although described below, collections containing less than 10 specimens should not be evaluated singularly nor quantitatively. April 19-20 The American eel, Anguilla rostrata, was the only species taken; 1 glass eel and 5 elvers were collected at ambient water temperature of 10.2-11.0 C and salinity of 5.5 to 8.0 ppt (Table 3.1.8-10). To conform to the established conventions of data tabulation these specimens were categorized as young and adult, respectively. Initial mean percent live was 100 in intake and discharge samples; mean percent live remained at 100 through the 12 hr latent effects period. There was no delta T across the condensers on this date, therefore, the absence of plant-induced mortality can be evaluated with respect to only pressure and/or mechanical effects.

  • June 28-29 Seven species were taken: bay anchovy (Anchoa mitchilli), satin fin shiner (Notropis analostanus), rough silverside (Membras martinica), northern pipefish (Syngnathus fuscus), weakfish (Cynoscion regalis, spot (Leiostornus xanthurus), and naked goby (Gobiosoma bosci) (Table 3.1.8-10).

Bay anchovy and weakfish were most abundant; the other species were represented by single specimens and are not discussed. Ambient water temperature ranged from 21.0 to 26.8 C and delta T across condenser 12 ranged from 3.8 to 6.1 c. Salinity and DO ranged from 4.0 to 6.0 ppt and from 6.6 to 8.4 mg/l, respectively. Bay anchovy larvae were taken at the intake (n = 9) and discharge (n = 2); initial mean percent live was 55.6 and 50.0, respectively (Table 3.1.8-10). Mean percent live at the intake was 33.3 at +2 hr and 11.1 at +4 hr. It remained 11.1 for the remaining 8 hr of the latent period. Mean percent live in the discharge samples (50.0) remained unchanged through the 12 hr latent period. 3.1-388 * -* * * * *. * * * * *

  • * * * * * . * * * * **
  • Weakfish larvae were taken at the intake (n = 63) and discharge (n = 57); initial mean percent live was 30.2 .and 89.5, respectively (Table 3.1.8-10).

Mean percent live in the intake samples remained virtually unchanged through the latent period, ranging from 30.2 to 31.7; in the discharge samples it was 87.7 at +2 hr and again at +4 it was 63.2 from +8 hr through +12 hr. Initial mean percent live wealcfish young taken at the intake (n = 34) and discharge (n = 49) was 58.8 and 79.6, respectively. Percent live was 52.9 at the intake and 73.5 at the discharge at +12 hr . September 13-14 Four species were taken: bay anchovy, northern pipefish, Atlantic croaker (Micropogon undulatus), and naked goby (Table 3.1.8-10). Ambient water temperature ranged from 21.2 to 23.5 C and delta T across condenser 12 ranged from 7.5 to 11.4 C. Salinity and DO ranged from 6.0 to 9.0 ppt . and 6.4 to 7.9 mg/l, respectively . Bay anchovy larvae were taken at the intake (n = 3) and discharge (n = 4); initial mean percent live was 100.0 and 0.0, respectively (Table 3.1.8-10). Mean percent live at the intake was 66.7 at +8 hr; at +12 hr all specimens were dead. Initial mean percent live for bay anchovy young taken at the intake (n = 40) and discharge (n = 25) was 75.0 and 76.0, respectively. Percent live was similar in intake and discharge samples through the latent period and at +12 hr it was 20.0 at both locations. Initial mean percent live for bay anchovy adults taken at the intake (n = 7) and discharge (n = 2) was 57.l and 50.0, respectively. Mean percent live at the intake was 71.4 at +2 hr because of the temporary recovery of a previously stunned specimen. It was 28.6 at +12 hr. Mean percent live in the discharge sample remained at 50.0 through +4 hr. By +8 hr the previously live specimen became stunned and remained in that condition through the remainder of the latent period. Northern pipefish young were taken at the intake (n = 4) and discharge (n = 3); initial mean percent live was 75.0 and 66.7, respectively (Table 3.1.8-10). Mean percent live in the intake samples remained at 75.0 through +8 hr. At +12 hr it was 50.0. Mean percent live the discharge sample was 33.3 at +4 hr. It returned to 66.7 at +8 hr and remained there through +12 hr. 3.1-389 Single specimens of Atlantic croaker larvae and naked goby young were taken at the intake and discharge, respectively. Initial mean percent live was 100.0 for both specimens and remained at 100.0 through the 12 hr latent period. 3.1-390 * * * * * * * * * * * * *

  • w I-' I w l.O I-' * * * * * * *
  • TABLE 3-1.8-1 MEAN DENSITY METER), 8Y DAJE, OF MTCROZOOPLANKTON

-1978. DATE NO. OF SAMPLES WATER TEMPERATURE CC) DISSOLVED OXYGEN (MG/Ll PH SALINITY CPPT> PUMPS OPE RAT ING 02/27/78-02/28/78 4 1.6-2.0 12.9-13.0 I 6.5-6.6 5.0-9.0 6 TOTAL VOLUME FILTERED (M3) 2.0 TAX ON SEX LI FE STAGE METER + *

  • 95Z CONFIDP*CE LIMIT --------------------------------------------------------------------------------------------------------------

SPP. A A 65290 37858 1'.E:MA TODA A A 310 436 POLYCHAETA A E 2205 184') COPE POD NAUPLI I A N 1340 1154 E. Aff INIS A c 430 '!> 3 HARPACTICOIDA A A 410 387 ECTINOSOMA A A 1240 14 71 ECT INOSOMA A c 420 960 o. COLCARVA M A 50 n9 IA SALEM EN 1978 *

  • w I-' I w "° N DATE NO. OF SAMPLES WATER (C) DISSOLVED OXYGEN CMG/L) PH SALINITY (PPT) PUPil-'S OPERATING 03/02/78-03/03/78 12 0.6-1.9 12.6-14.9 7.0 3.0-6.0 6 TOTAL VOLUME FILTERED CM3) 6.0 TAXON SEX TABU: 3.1.8-1 COIJTINUED LI FE STAGE METER + 95); CONFIDENCF LIMIT ROTIFER SPP. A A 25989 11086 IJOT HOLC A A A 37 55 K. QUADRATA A A 31 49 8. CALYClfLORUS A A 20 44 NE '1AT0 D .A A A . 591 214 POLYCHAE:TA A E 2 4 71 ACARlf;A A A 20 44 COPEPOD UAUPLII A 1362 460 P. CRASSIROSTRIS A A 10 2? P. CPASSIROSTRIS F A 1 7 37 E. AFFiriIS A c 277 126 E. AFFINIS F A 23 35 E. A FF JtH S M A 98 68 P. CORO"iATUS A t 10 n HARPACTICOIDA A A 281 177 ECTINOS0"1A A A 1935 1162 ECTINOSOMA A c 601 307 o. COLCARVA F A 50 11 () TARDIGRADA A A 21 46 IA SALEM FN 1978 * * * * * * * * * ----__ \_ *
  • w I-' I w "° w * * * * *
  • TAl-.llf:

3.1.b-1 CON Tl NUE D * * * *

  • DA TE NO. OF SAMPLES TEMPERATllllE CC> DISSOLVED OXYGEN PH SALINITY CPPll PUMPS OPERATING 03/16/78-03/17178 10 2.5-4.6 11.6-13.8 1.0-4.0 2-3 TOTAL VOLUME FILTERED CM3> 5. (I TAXON SD .LIFE ST A GI:: NUMBERS/Cl/ATC METER + 9 5):. CONF I LIMJ T ROTHER SPP. A A 74378 3124 8 NOTliOLCA A [\ 148 1 41 8. CALYCIFLORUS A A 1 5 34 NEMATODA A A 291 270 POLYCHAETA A E 6708 11 69 POLYCliAE.TA A* L 30 68 COPEPODA A c 15 34 COPE POD NAUPLI I A N 6629 1399 E. AFf INIS A c 230 167 E. AFFINIS f A 2 21 1 Bil E.

M A 117 9?. DIAPTOMUS A c 16 :56 HARPACTICOIDA A A 1 21 13.) ECTINOSOMA A A 2113 9/1 A c 395 o. COLCARVA A c 20 45 c. BlCUSPlDATUS A c 72 87 IA SALEM FN 1978

  • w ....... I w * *
  • DAH NO. OF SAMPLES w*rER TEMPERATURE CC> DISSOLVED OXYGEN CMG/Ll PH SALJf,;!1y (PPT) P lW* P S 0 P f: R A T I NG 04/19/78-04/20/78 1 2 10.2-11.0 8.8-11.0 7.0-7.6 5.5-8.0 1 TOTAL VOLUME FILTERED CM3) 3.6 TAXON SEX ROTIFER SPP. A ROTA PIA A NOlHOLCA A KE:P.ATELL/\

A R R n fi C H 1 0 flU S A 8. CALYCIFLORUS A t1E'*'A TODA A POLYCHAETA A PELECYPODA A 8 0 S l A A COPE POD NAU PL II A T. LOr,,r,1 CORNIS A E. AfFINlS A E. F E. AFFPHS M DIAPTO*IUS M HAR PAC TI COi DA A HARPACT ICOIDA A EC TI A ECTll'<OSOMA A H. FOSTER! F CYCLOPS A lARDIGRAOA A * *

  • TAALE 5.1.8-1 CONJ TNUED LI FE STAGE A A A A A A A E L A N A c A A A A c A c A c A * *
  • NUMBERS/CUBIC METER 180 67 1487 363 15 67 719 83 83 67 29713 1 5 3816 . 457 901 30 430 67 456 200 111 67" 97 * +
  • 95% CONFIDENCE LIMIT 225 14 7 899 33'3 147 1206 18'3 1 83 147 16616 32 2583 386 410 66 7 31 147 469 440 245 147 155 IA Sl\LEM EN 1978 * *
  • w I-' I w l.O Ul --------------* * * * * * * * * -------**-*--*-**--*-
  • *
  • TABLE 3.1.8-1 corn rnu ED DATE NO. OF SAi*lPLES "WATER TEMPERATURE CC) DISSOLVED OXYGEN CMG/L) PH SALlNlT'I' CPPT) PUMPS OPERATING 06/28/78-06/29/78 1 () 21.0-26.8 6.7-6.4 6.5-7.1 4.0-6.0 b TOTAL VOLUME FILTERED CM3) 4.0 TAXON s E: x LIFE STAGE NUMBERS/CUBIC METER + 95% CONFIDENCE LHilT --------------------------------------------------------------------------------------------------------------

ROT I FER SPP. A A 80 181 Rull FERA A A A 25 57 B. At'<GULARIS A A 25 57 B. CAIJDATUS A A 90 B7 NEMATODA A A 675 1()79 POUCHAETA A L 35 79 GASTROPODA A L 217S 905 MOINA A A 95 149 COPE POD NAUPLII A N 7950 6261 E. A ff I IH S A c 3240 1998 E

  • AFFINIS F A 1455 791 E. AFfINIS M A 1305 854 P. CORONATUS A c 3020 1 369 P. CORONl\TUS F A 5485 2946 P. COQONATUS M A 1310 111 (J A* TONS A A c 1345 1144 A. TONS A F A 5715 2406 A. TOt. SA M A 1135 637 HARPACTICOIDA A A 185 235 SCOTTOL4NA A I\ 400 385 SCOlTOLANA A c 195 295 E C T I N 0 S 0 A A A 1360 111 s c. VEP<ALIS A A 25 ':>7 c. VERNALIS A c <;O 1n c. VERNAL!S F A 25 ':>7 c. VERNALIS M A 40 90 CIRRIPEDIA A N 765 896 CRYPTONISCUS LARVAE A L 40 90 l A SAL£ Vi F tJ 1 9 78 w ..... I w '-0 °' * *
  • TAl:lLE 3.1.8-1 CONTINUED

DA TE NO. OF SAlPLES TEMPERATURE (() DISSOLVED OXYGEN (MG/LI PY SAL!Nl TY (PP!) PUPS OPEl<ATING 07/12/78-07/13/78 1 2 24.0-25.0 6.2-8.0 5.0-10.0 5-6 TOTAL VOLUME FILTERED 4.8 T AXON SEX LI FE STAGE NUMBERS/CUBIC METER + 95X CONFIDENCE LIMIT -------------------------------------------------------------------------------------------------------------- I'* v EGG A E 156 247 POI I FER SPP. A A 212 209 ROTIFFRA A A A 576 25<1 K. VALGA A A 21 46 A. CAUC!FLORUS A A 21 46 8. A 1160 790 8. CALIDATUS A 21 46 8. IJRCEOLARIS 1 6 7 228 PARADlCRANOPHORUS A A 21 46 1001 A A 212 1 59 P0L¥CHAETA A L 1122 647 GO:SHOPODA A L 128 51 5171 COPE POD *IAUPLI I A N 28729 9514 E. AFf!N!S A A 52 11 5 E. IF FI l S A c 4035 2385 E:. AF F PH S 951 909 E. AFFINJS M A 1625 1337 P. A 3622 161.12 P. COROliATUS F A 11986 10734 P. COwO'JA TUS M A 11344 9554 A. TONS A A 5076 3777 A. TONS A F 8288 2885 A. M A 2347 1U49 HARPACTICOIOA A A 365 294 ICO!DA A c 42 92 SCOTTOLANA A A 253 1b6 SCOTTOLA>1A A c 104 , 58 Eel !>lOSOMA A A 6951 3120 A c 21 46 H. A 21 46 A N 2684 1779 CRYPTONISCUS LARVAE A L 21 46 IA SALEM rn 1978 * * * * * * * * *

  • *
  • w I-' I w -...] * * * *
  • TABLE 3.1.B-1 CONTINUED
  • * * --------------------------------------------------------------------------------------------------------------

DATE NO. Of SAMPLES wATER TEMPERATURE (Cl O!SSOLVEO OXYGEN CMG/L) PH SALHdTY (PPT) PUMPS OPERATING 07/27/78-07/28/78 1 2 26.3-27.4 5.4-6.7 6 .* 9-7 -4 6.0-8.0 5 TOTAL VOLUME (f13) 4.8 TAX Or< SEX LI FE STAGE NUMBERS/CUBIC METER + 9 5 CONFIDENCE LIMIT ----------------------------------------------------------------------------------------------------¥--------- !f1v£RT. EGG A E 8 10 TURBELLAR!A A A 27 "1 TlJi<SELLARlA A L 1 7 37 ROTIFER SPP. A A 1 28 98 ROT IF ERA A A A 13 28 tl. ANGULAR IS A A 212 2L i B. URCEOLARlS A A 1 7 31 ASP L C tHI A A A j3 (':5 A 50 ;,1. POLVCHAETA A 17 j/ POLYCHAETA A L 2030 9i.LS GASTROPODA A l 10833 6 ?:So COPE POD NAUPLll A ,N 14250 "2:u E. AFflNlS A r. 11 7 1<;1 t: -A> fl *j l S M A 31 !,.;-, P. CORONATUS A c 194 P. CQR(L'JATUS A 233 1 (!) P. TUS M A 106 LS? A. TONS A A c 6815 2bo1 A. TONS A F A 1535 A. T Ol*1S A M 1182 f1AkPACTJCOIDA A A 8 Ji'. HARPH T ICOIDA A c 77 9? 150 *1-:...it.. SCOT TUU"H A 38 :. s A A 5967 3210 o. F A 8 18 o. COLCARVA M A 8 '12 H. FOSHRI A c 17 25 c. V RtJAL l S A c 50 i 10 ERGAS!LLJS A 25 55 A 1988 bi. 3 LARVAE A L 131 91 TAROIGRAOA A A 31 b'i I A SAUM F 197 il * *

  • w I-' I w \.0 co * *
  • TABj_E 3.1.8-1 CONTINUED DA TE OF SAMPLES TEMPERATURE CC) DISSOLVED OXVGEN (MG/Ll SALlfJI TY (PPTl 08/10/78-08/11/78 1 2 26.7-28.7 6.0-9.8 7.2-7.4 6. (J 4-5 Pi!MPS OPERATING , TOTAL VOLUME FILTERED CM3l 4.8 1 AXON SEX LI FE STAGE NUMBERS/CUBIC METER + 95% CONFIDENCE LIMIT 6 If/VERT. EGG A 3 fURBELLARJA A A 3 6 A L 31 69 fiOTIFER SPP. A A 8 18 ROT I FERA A A A 10 23 B. ArJGllLARJS A A 191 272 E AT 0 DA A A 62 64 POLYCHAtTA A E 3 6 POLYCHAETA A L 397 363 TfiOPODA A L 5344 . I NA A A 9 14 COPf POO A N 4153 2215 E. AFF!rl!S A c 129 243 E. AFFIN!S F A 75 93 E. AF fir.JS M A 58 46 P. COl<ONATUS A c 711 403 P. CORONATUS F A 876 628 P. CORONATUS M A 256 133 A* IONSA A 3724 A* TONS A F A 4316 3064 A. TONS A M A 1698 976 SCO TTOLMIA F 10 23 s. CA" ADE ti SIS A A 109 161 s. CA IJ A 0 ENS IS A c 78 66 s. CA rll, DE:. ;JS l S F A' 46 68 E c T !l*OS o;u A A 3594 2989 o. COLCARVA F A 10 23 H. FOSTER I A c 15 24 tt. FOSTER I F A 144 184 H. FOSHRI M 21 46 C!RRIPEDIA A II 344 248 CR1PTON!SCUS LARVAE A L 57 78 IA EN 1978 * * * * * * * * * *
  • *
  • w I-' I w l.O l.O * * * *
  • TABLE 3.1.8-1 CONTINUED
  • * * -----------------------------------------------------------------------------------------------

.. -------------- DA TE NO. OF SAMPLES TEMPERATURE IC> OISSOLMED OXYGEN (MG/L) PH (PPT> PUMPS OPERATING 08/31/78-09/01/78 12 26.5-27.0 5.1-6.2 7.0-7.3 6.0-8.0 5-6 TOIAL VOLUME FILTERED (M31 4.8 TAXON SEX LI FE STAGE NUMBERS/CUBIC METER + 95% LIMIT I k T. EGG A E 1 9 30 TURoELLARIA A A 10 25 A L 135 76 ROT I Ft RA A A A 108 80 BDELLOI Of:A A 36 69 VALGA A A 7 15 B. ANGULAR IS A A 118 138 B. QIJADRIOENTATUS A A 10 A A 14 31 POLYCtUf:TA A L 4 77 291 C*ASHOPODA A L 15266 4 73' PELf:CYPOilA A L 21 46 rlO l'1A A 6 1 !. COPE POD flAUPLII A N 3465 1509 E. AF FINIS A c 14 31 P. COROriqus c 166 87 P. coRo*a rus A 260 1 P. COl<Ql;A TUS M A 74 65 A. I Or;SA 4053 12tB A. TONS A A 4181 2523 .. IONSA M 633 2Hl HHPACT ICOIDA A 42 52 A 56 56 F A 24 37 T ICOI DA M A 10 23 SC 0 TT 0 A A A 76 87 SCOTTOLA,1A A c 47 51 SCOTTOLAllA F A 24 37 ECTil*OSO"IA A A 5156 30c7 H. F A 45 511 M .A 1 41 b5 A N 2057 596 CIRRIPf:D!A A 57 49 CRYPTONlSCuS LARVAE A A 10 23 CRYPTO*dSCUS LARVAE A L 97 76 IA SALEM EN 1978 * *

  • w I-' I 0 0 *
  • TABLE 3.1.8-1 CONTINUED

DA Tf: 110. 0 f S Ar-1 PL ES WATER TEMPERATURE (C) DISSOLVED OXYGEN (MG/Ll PH S AL I *d TY ( PP Tl Pl!"PS 1 2 21.2-23.5 6.5-8.3 6.8-6.9 6.0-9.0 5-6 lOTIL VOLUME FILTERED !M3l 6.6 TAXON SEX LI FE STAGE NUMBERS/CUBIC METER + 95X CONFIDENCE LIMIT ROTIFER SPP. A A 47 103 A A 262 280 A L 104 128 01.lGOCt<H TA A A 113 168 GASTROPODA A L 1926 1088 COPE POD NAUPLI I A N 1111 950 E. Af F!NIS M A 19 42 P. A 19 42 P. F A 327 198 p . coqoNATUS M A 52 81 A. T Qr1S A A c 1461 738 :. . TOl1SA F A 771 583 Mo TONS A M A 85 127 EC 1 INOSOMA A A 1168 643 o. COLCARVA A A 57 90 o. COLCARVA A c 33 73 CIRRIPEOIA A N 19 42 IA SALEM fN 1978 * * * * * * * * * *

  • *
  • w I--' I ii::. 0 I--' *
  • DATE NO. OF SAl-\PLES wATEk lUlPERATIJRE (Cl DISSOLVED OXYGEN (MG/Ll PH SALINllY (PPTl PU'IPS OPERATING
  • 10/11/78 6 17.3-18.0 6.9-7.3 6.9-7.2 6.o-8.u 3 lOlAL FILTERED <M3l 2.4 lAXON SEX TlJRBELLARIA A ROT !FER SPP. A l<EOIATOCA A

A POLYC*HE:TA A GASJROPOOA A OS TRACOOA A COPE POD A E. AffINIS M P. C 0 R 0 r1A TU S A P. COROr1ATUS F P. CORONATUS M A. TONS A A A* TONS A A. TOt<S A M HARPACl ICOIDA A A SCOTTOLANA A ECTINOS0"1A A Cl1HIPEDIA A CRYPTONISCUS LARVAE A

  • TABLE 3.1.8-1 CONTINUED LIFE STAGE A A A E L I. A N A c A A c A A A A N L *
  • NUMBERS/CUBIC 8 42 8 1297 1 7 9 1 51 8 892 8 163 209 9l 344 1411 402 8 122 5 2335 200 25 * * * * + 9 5:: CONFIDEt;CE L !MIT 21 52 21 3.,3 106 11 5 2 1 3:;5 21 11 5 z-c UJ ;39 2i. 4 1'*"\"'I 427 21 1 64 13 902 172 44 IA EN 1918 w 1--' I ""' 0 N * *
  • TABLE 3.1.8-1 COIHir<UED DATE 11/01/lB-11102/78 liO. OF SAl'PLES . 12 klTEQ TENPENATURE (Cl 13.0-14.5 DISSOLVED OXYGEN (NG/Ll 8.4-9.5 Prl SAL!lll TY (PPT) PU"PS OPERATING TOIAL FILTERED CM3l TA XO>./

SPP. f:;-: AT (l DA PULYCHAETA Ol!GOCHAETA COeE:POD NAU PL II E. AfFlN!S E

  • AFf!NlS P. CONONATUS P. CORONA TUS p_

TUS A* TONS A A. .. TONS A HAOPACTlCOIDA iiARFACTICOIDA

s. CANA DENS IS ECT C!RRIPED!A
  • 6.0-9.0 1-2 4.6 SEX A A A A A A A f A f M A f M A F A A A
  • LI FE STAGE A A E L A N c A c A A c A A A A A A N *
  • NUMBERS/CUBIC METER 44 2 21320 2960 8 1314 21 28 35 14U 1 54 205 225 119 41 2 i.'1 4010 31 * + * '9 5 % CONFIDENCF LIMIT 68 5 14330 152"' 1 8 1 09" 31 61 43 111 112 130 1.32 , 1 5 43 5 31 2145 47 IA SALEM EN 1978 * * * *
    • *
  • w f--' I ""' 0 w * * *
  • TABLE 3.1 t8-1 CONTINUED
  • * * --------------------------------------------------------------------------------------------------------------

DATE NO. Of SAMPLES TEMPtRATURE (Cl DISSOLVED OXYGEN (MG/Ll PH SALINITY (PPT) OPERATING 11/21/78-11/22/78 1 2 8.5-12.5 8.9 6.8-7.1 1ll.0-12.0 5 TOTAL VOLUME FILTERED (MJ) 4.8 SEX LIFE STAGE NUMBERS/CUBIC METER + 95t CONF IDt.NCE L !t"i T ***-***-----------******-*************-***-------*-a-**------------------------*******-***-------------------- ROTIFER SPP. A A 8 1.i::; A A 35 49 A E 175 11" POUCHAETA A L 302 171 OLIGOCHAE TA L 4 Q PELECYPOOA A L 19 .57 ACARJhA A A 6 14 COPE POD NAllPLll A N bCl <.97 E. AfFJNIS A c SS 91 E. AF F ltHS M A 6 1 P. C 0 R 0 ti A TUS A c 25 3 P. CORONA!US F A 769 60? P. CORONA Tl.lS M A 556 468 A. TOl-ISA A c 140 92 *- F A 196 7-; A. TON.SA M 48 t.I. HHPACT!COIDA A A 6 HI HARPACTICOIOA M A 1 7 37 EC T !tiOSOMA A A 927 4 'I) CIRRIPED!A A N 27 37 IA SALEH EN

  • I *
  • w f-' I *"' 0 *"' *
  • TABLE 3.1.8-1 CONTINUrn OA TE 12/13/78 NO. OF SA:*\PLES 3 (Cl 5.0-C!SSOLVEO OXYGEN (MG/L) 10.1-11.0 7.1-7.4 (PP!) 5.0-6.0 OPERATING 2-3 TOTAL VOLUME FILTERED CM3l 1.8 T AXON SEX LIFE S!AGE NUMBERS/CUBIC METER + 95X CONFIDEHCE LIMIT --------------------------------------------------------------------------------------------------------------

ROl I FH SPP. A A 889 912 r1(1THuLCA A 178 382 r .* OUAORAfA A A 22 96 K. 011 !ENS IS A A 22 96 SY IJ CH A E T A A 44 96 F. LOl*GISErA A A 22 96 P. HLIDSO'd A A 22 96 Pl<LYCHAl:TA E 53.3 287 Pi)L 'fCHAET4 L 111 191 G'-STROPUOA L 22 96 P!:UCYPOOA A L 22 96 ttlPEPOD NAUPLll A N 2156 1659 E

  • AFFPl!S A c 333 11S9 E. AF FI r: IS F A 44 96 E
  • FI ri IS M A 200 438 P. CORO*IA rus A c 44 1 91 P. C ll R 0>: A TU S M A 22 96 HARPACTICOIOA A c 44 96 E (TI NOS011A A A 1222 1127 FOSTER I A c 22 96 c. 81CUSPIDATUS A A 22 96 CiRRlPEOIA A N 22 96 IA SALEM EN 1978 * * * * * * * * * *
  • *
  • w I-' I ""' 0 Ul * * * * * *
  • TABU 3.1.8-2 RANKo TOTAL NUMBER. ANNUAL MEAN DENSITY AND PERCENT TOTAL CATCH OF MICROZOOPLANKTON

-1978. DA TE NO. Of SAMPLES wATER TEMPERATURE (Cl DISSOLVED OXYGEN (MG/Ll PH SALINITY (PPT) PUMPS OPERATING 01/01/78-12/31/78 141 0.6-28.7 5.1-14.9 6.5-7.6 1.0-12.0 1-6 TOTAL FILTERED (M3l 60.0 .TAX ON LIFE STAGE SEX RANK NIJMBER NUMBERS/CUBIC METER -----------------------b*---------------------------------0--------------------------------------------- ROTIFER SPP. A A 1 66.3047 11051 28. 6 llAUPLl I N A 2 414919 6915 17 .9 GASTROPODA L A 3 234007 39DO 1 Q .1 EC T Ir* 0 S 0 '*I A A A 4 2892 7.5 POLYC>lAETA E A 5 14.365 3. 2394 6.2 A. lONSA A F 6 1 21 0<12 2017 5.2 A. TOf* SA c A 7 111.rn1 195 5 s. 1 P. CO ROI.a TUS A f 8 9 3062 15s1 L.., 0 P. A 9 65720 1 095 2.o E. AF F 111 l S c A 10 48516 809 2.1 CIRRIPEDIA N. A 11 37974 633 1. 6 P. COfiONArus c A 1 2 35510 592 1. 5 POUCHAETA L A 1 3 35069 581. 1 .. A. TONS A A M 14 34':116 582 1

  • 5 E. AFFINIS A M 1 5 18250 304 0 " E. AFflNIS A f 16 15502 225 iJ .. o A A 17 13440 224 0.6 B. ANGULAR IS A A rn 8112 136 0.4 HARPACTICOIDA A A 19 120 0.3 EC I IIJOSQ>IA c A 20 7000 117 0 * .3 NOTHOLCA A A 21 6238 1 04 0.3 ROTIHRA A A A 22 3395 57 8.1 SCOT TOLA NA A A 23 3183 53 0.1 SCOTTOLANA c A 24 2236 37 0 .. 1 LARVAE L A 25 1689 28 0.1 H4<1PACTIC01DA c A 26 1373 23 J .. 1 H. FuSlERl A f 27 127 5 21 0 .1 ni<A TE:LLA A A 28 980 16 " INVERT. EGG E A 29 895 15 El.

A A 30 880 1 5

  • TURi3ELLARIA L A 31 879 1 5 .. ERGASILUS A M 32 674 11 s. CANADENSIS A A 33 623 10
  • f.\ROIGRAOA A A 54 615 10 * * -INDICATES REPORTABLE IA SALEM EN 1978 * *
  • TABLE 3.1.8-2 CONIHlUED LI FE HXON STAGE stx RANK NUMBERS/CUBIC METER PERnNT OL!GOCHA!:IA A A 3'i 580 10 * (I, COLCARVA A A 480 B
  • A. CALIDA rus A A .H 460 8 t j;1Q I J; A A A .SB 455 8
  • CALYC I FLORUS A A 31! 455 8 tr c.

c A 40 440 7

  • HLHYPOOA L A 41 430 7
  • o. COLCARVA A F 42 390 7
  • s. CANADENSIS c A 43 315 6
  • c. t!ICUSPIDATUS c A 44 .SS 8 6
  • SCOl IOLAl-IA A F 45 347 6
  • y A 46 273 5
  • o. COLCARVA c A 47 260 4 tr E
  • AF f 111 IS A A 48 250 4
  • auADRATA A A 49 2?. 5 4
  • s. P"'AOcNSlS A f 50 221 ' 4
  • IURBtLLAR!A A A 51 213 4
  • H. f O> TERI c A 52 190 3
  • A M 53 180 3
  • w 6DtlLOIOEA A A 54 175 3
  • A SP LA NCH liA A A 55 160 3
  • I-' 805 ;.1 IriA A A 55 160 3
  • I kOIARJA A A 55 160 3 * ""' Of.LOPS c A 55 160 3
  • 0 °' c.

A M 55 160 3

  • AC AF. I ri A A A 60 1 5 () 3
  • o. CGLCARVA A M 61 14 ll 2
  • K
  • v ALGA A 62 133 2
  • HHPACT lCOlOA A M 63 1.50 2
  • H>l>PACI ICOlDA A F o4 127 2
  • c A 65 120 2
  • A A 66 100 2
  • c. V !: R 1, AL 1 S A F 66 1 OtJ 2
  • c. v Ek Al IS A A 66 100 2
  • H
  • FOSTER! A M 66 1 [)0 2 * .P. CRASSIROSTRIS A F 66 1 00 2
  • 8 P. A ;.,c HI O*ws A A 71 88 1
  • T. l0NGICORNIS A A 71 88 1
  • c A 73 80 1 I< SY:, C,; A E I A A A l3 80 1
  • COPtPuDA c A 75 75 1
  • P. CRASSIROSTRIS A A "76 60 1
  • CRYPTONISCUS LARVAE A A 77 50 1 * * -INDICATES BELOW REPORTABLE IA SALEM 1978 * * * * * * * * * * * * * ----------
  • *
  • w I-' I ""' 0 -._) * * *
  • TABLE 3.1.8*2 CONT IN LIED * *
  • TAX ON LI FE STAGE SEX RANK NUMBER NUMBERS/CUBIC METER PERCUH B. QUAORlDENTATUS A A 77 Sil
  • K. BOS TO'l lEIJS IS A A 79 40
  • P. HUDSON I A A 79 40
  • f. LONGlSETA A A 79 40
  • c. BICUSPIDATUS A A 79 40
  • OLIGOCHAET A L A 83 20 *
  • OSTRACOOA A A 83 20 * * * -INDICATES BELOW REPORTABLE IA SALEM 1978 * *
  • w I-' I it:>. 0 OJ
  • DHE 04119/78 -l!JCAl!O.I l fJ E COLLECTION F 1042 i.IA TE R TE \iP. ( c ) 10.2 COt*ID. DELTA r (C) DI SS. OXYGHI (MG I Ll 8.8 SAL.Ill! Tr CPPTl s.s II J L 11 E f!LHREO ( M3) 3.6 TAXiJri SEX TABLE 3.1.8-3 BY DATE Of INITIAL AND LATENT MEAN PERCENT SURVIVAL, MJCROZOOPLANKTON

-1978. 04/20178 LIFE STAGE KEY: A = ADULT c COPEPODID 0459 L LARVAE 11. 0 N = NAUPLII y .. CYPRIS LARVAE 11

  • 0 8.0 0000 0200 LIFE TOT AL PERCENT PERCENT PERCENT TOTAL PERCENT STAGE NUMB FR LI VE STUtJNED DEAD NUMBER LIVE PERCENT PERCENT DEAD ROT If ER SPP. A 0 0 0 0 0 0 0 0 A A 1 100 0 0 0 0 0 0 lo 0 f rl 0 l C .\ A A 10 100 0 0 7 85 0 14
  • t I;/. TC L LA A 0 0 0 0 2 0 0 100 A A 0 0 fl 0 0 0 0 0 3. ULYClfLORUS A A u 0 0 0 0 0 0 0 11<" ru o A A A 0 0 0 0 1 100 0 0 POLYCH*ETA A E 0 0 I) 0 0 0 0 0 PEltCYPQDA A L 0 0 D 0 0 0 0 0 BD s:_, I :1 n A A 0 0 0
  • 0 0 0 0 0 COF'f:PVO N!UPLII "' 91 81 8 9 85 89 3 7 T. lCJ:*GlC!lRN!S A 1 0 0 100 0 0 0 0 E. Afr I 'j IS c 8 87 1 2 0 7 85 0 14 E. ,\ f l S. A .s 33 66 0 3 100 0 0 E. AH!'HS :1, A 9 100 0 0 1 100 0 0 DI.< PT U*' US 1*1 A 0 0 0 0 0 0 0 0 HA;<PACJ!COIDA A A 0 0 0 0 0 0 0 0 HAR?AC Tl CO!DA A c (J 0 0 0 0 0 0 0 ECT JtrOSO.*IA A A 1 100 0 0 2 50 0 50 A c 3 33 0 66 0 0 0 0 H.

F A (] 0 0 0 0 0 0 0 CYCLOPS A c 0 0 0 0 0 0 0 0 TARDIGRADA A A 1 100 0 0 0 0 0 0 IA SALEM EN 1978 * * * * * * * * * * * *

  • * * * * * * * * * * *
  • TABLE :S.1 .B-3 CONTINUED 040U 0800 TAXON SEX LIFE TOT AL PERCENT PERCENT PERCENT TOTAL PERCENT PERCENT PERCENT STAGE NUMBER LI Ve S TIHHIEO DEAD NUMBER LI VE STUi;NEO D CAD ROTJHR SPP. A A 2 (J 0 100 (J 0 0 0 ROTA*IA A A 0 0 0 0 0 0 0 0 llOTHOLCA A A 1 (I 50 :Sll 20 5 40 20 40 A A 1 0 0 100 1 0 0 100 A A 0 0 0 0 0 0 0 0 a -CALYC!FLORUS A A 1 0 0 100 0 0 0 D NCl<lil !ODA A A c 50 0 so 1 0 0 100 POLYCHAETA A E 1 10U 0 0 0 0 0 0 PELECYPOOA A L 1 0 u 1 OD 0 0 (J 0 SO SM HI A A A (J 0 Cl 0 1 0 0 100 COPcfJ(JO
  • 1AUPLl l A N 113 92 0 7 83 90 3 6 T.

F A ll u 0 0 0 0 () 0 E. AFFl'ilS A c 21 76 0 23 14 85 7 7 w E. F A 4 50 25 25 0 0 0 0 £ .. Aff!'HS M A 5 BO 0 20 0 0 0 0 f-' OHPTUMUS '" A 1 0 u 100 0 D 0 0 I HARPAC rICDl DA A A u 0 0 0 2 0 0 1DO 0 HARPACT!COIOA A c 0 0 0 0 1 0 0 1UO \0 A A 2 100 0 o* 0 0 0 0 ECTir10SO>A A c 0 0 0 0 0 0 0 0 H. FOSTER! " 0 0 0 0 1 100 0 0 CYCL.JP> A c 0 0 0 0 1 100 0 0 A A 0 0 0 [) 1 100 0 0 lA SALEM rn 1978 TABLE 3.1.8-3 CONTINUED 1200 TAX ON SEX LI FE fOTAL PERCENT PERCENT PERCENT STAGt NU**IBER LIVE s rur.NEO DEAD ROTlftR SPP. A A 1 100 0 0 ROfAR!A A A 0 0 0 0 NOTHuLCA A A 1 0 0 10.0 kERA TELL A A A 2 50 50 0 BR Ar. C fl I 0 S A A 1 100 0 0 8. CALYCIFLORUS A A n 0 0 0 NEMATODA A A 4 25 25 50 POLYCrlAETA A E 0 () 0 0 PELECYPODA A L 0 0 0 0 BOSM HIA A A () 0 0 0 COPtPOO NAUPLI I A N 93 80 7 11 r. LIH1GICORN£S F A 0 0 0 0 E. AFFINIS A c 18 77 11 11 w E. AFFPIIS F A 1 0 0 100 E

  • AF FINIS M A 7 100 0 0 f-' OlAPTOMJS M A .0 0 0 0 I HARPAC I ICOIDA A A 3 0 0 100 f-' HARPACTICOIDA A c 0 0 0 0 0 A A 0 0 0 0 ECTINOSO!*IA A c 1 0 0 100 H. FOSTERI F A 0 0 0 0 CYCLOPS A c 0 0 0 0 TARDIGRAOA A A 0 0 0 0 IA SALEM E.N 1978 * * * * * * * * * * *
  • w I-' I .J:>. I-' I-' * * * *
  • DATE 04119178 -04/20178 LOCArlU'l OISC11AAGE COLLECT TJ'IE 1044 0505 wAHR (C) 10.9 CO'<D. DHTA T <C) DHS. OXYGE\i ( 'IG IL> 8.4 10.2 SALlt.l TY (PPO 5.5 8.0 fll TEAED OU> 2.8 T AlDti SEX LIFE TOTAL ST AGE NUMBER *
  • TABLE 3.1.8-3 CONTINUED 0000 PERCENT PERCENT LIVC
  • LHESTAGE KEY I A c L N y PERCENT DEAD * *
  • ADULT " COPEPODID

"' LARVAE .. NAUPLII .. OPRl6 LARVAE 02CJO TOTAL PERCE t;T IWMBER LIVE !: lUIH<E 0 DCAD A A 1 100 0 0 0 0 0 0 SPP. A A 1 100 0 0 2 100 0 0 NUTHCLC.1. A A 12 75 16 8 6 83 0 16 A A 0 0 0 0 1 0 0 100 B. CAUClfLOAUli A A u 0 u 0 0 0 0 0 NEMA lu:H A A 2 100 0 0 3 33 :n 33 POI I TA 1 E 1 100 0 0 0 0 0 0 BOS:"' I '1A A A 0 0 0 0 0 0 0 0 A A () 0 0 0 0 0 0 0 'iAUPLll A N 1'.)4 92 4 2 134 88 2 !i E. Hf j.\IS A A 0 0 0 0 (J 0 0 0 E. Affi\lS A c 12 83 0 11> 18 81 11 5 E. A f. 1 'oi S F A 5 80 20 0 4 100 0 0 E. A Ff I'< IS H A 6

  • 100 *o 0 4 100 0 0 HAi<PAC T lCOIDA A A 2 100 0 ti 0 0 0 0 ttAHPLCTlCOIOA A c 0 0 0 0 0 0 0 0 A A 2 50 0 50 6 33 06 0 Hl A c 1 0 10[; 0 0 0 0 0 c. BICUSl'lDATUS f A 1 0 0 100 0 0 0 0 JA SALEH HI 1978 **
  • TABLE 3.1.8-3 *CON TI NU ED 0400 osuo T AXOI* SEX LI FE TOTAL PERCENT PERCENT PERCENT TOTAL PERCENT PERCENT PERCENT STAGE NUMBER LIVE STUNNED DEAD NUMBER LIVE STUNNED DEAD Tl!Rcil:LLAfi!A A A 0 0 ll 0 0 0 0 0 ROTIFEP A A 0 0 0 0 0 0 0 0 A A 6 83 16 0 4 100 0 0 KERA I l:LLA A A u 0 () 0 1 0 0 100 d.

A A 1 0 100 0 u 0 0 0 ;'i E ;.1:., T lJ DA A 0 0 u 0 1 100 0 o* A E 1 100 () 0 1 100 0 0 A A u 0 u o* 2 100 0 0 OS A A 0 l) () 0 0 0 0 0

  • r;ALJPLII A N 202 94 3 1 129 87 8 3 VJ -Aff1*1*IS A A 0 0 0 0 0 0 0 0 I-' I:.. FF 1 *; i S c 30 90 0 10 8 87 0 12 I E. nf! A 3 100 0 0 6 83 16 0 E. AFFl*\IS l'4 A 0 0 (J 0 5 100 0 0 I-'

T ICO'!OA A A 0 u 0 0 a 0 0 0 N HAKPAC T !COIDA A c (I 0 u 0 0 0 0 0 l:CT!t.QS0 1 4A A A 5 80 0 20 3 33 0 66 A c 0 0 0 0 2 100 0 0 c. 6ICUS?IOATUS F A 0 0 0 0 0 0 0 0 IA SALEM EN 1978 * * * * * * * * * * *

  • * *
  • w f-' I ""' f-' w *
  • TAXON SEX
  • TAALE 3.1.8-3 CONTINUED LI FE STAGE TOT AL IHJMfJ< R
  • PERCENT LI\IE
  • 1200 PERCENT STUNllED PERCENT DE40 ----------------------------------*-------------------------------------------------

TURBE:LLARIA A A 0 0 CJ 0 ROT HEii SPP. A A 0 0 0 0 llOTHOLtA A A 8 62 12 25 KERA I ELLA A A () 0 0 0 B. CALYCIFLORU!i A A 0 0 0 0 NtMAIODA A A 0 0 0 0 POLVCHAEIA A E 0 0 0 0 BOSMINA A 0 0 0 0 OSTMACOuA A A 2 100 0 0 COPEPOO NAUPLII A N 147 81 8 10 E. AF F I:; IS A A 1 0 0 100 E. A c 8 100 0 0 E. F A 4 100 0 0 E. M A 5 60 0 40 HARPACTICOIDA A A 1 1110 0 0 HARPACJ!COIOA c 1 100 0 '.l ecr A A 2 0 0 1 ()Q EC TI rlOS0"1A A c 0 0 0 0 c. BICUSPIOA TUS f 1 100 0 0 IA SALEM EN 1978 * * *

  • TABLf:' 3.1.8-3 CONJINlJED D .\IE Ol>/28118

-06/29/78 LIFESTAGE KEY: A = ADULT L JC.\ l I tH1 c c COPEPODID COLLECT TI): E 1530 0647 L " LARVAE rl i\ T t R TE *w. (Cl 21.0 26.8 N = NAUPLI I Cll DELTA T (cl 3.8 6.1 y = CYPRIS LARVAE DISS. 0 X Y GE ri c;;G/Ll 6.7 8.4 . SAL!r;J TT (pp T) 4.0 6.0 VOLU*IE f!LT!:RED ( ;-13) 4.0 oouu 0200 TAX OIJ s f'X LI FE TOTAL PERCEMT PERCENT PERCENT TOTAL PERCENT PERCENT PERCENT STAGE LIH S TUl<NED DEAD NUMBER LIVE STUNNED DEAD 'l CT I FER SPP. A A 1 100 0 0 0 0 0 0 w 8. Ar.GUL*;n s A A 1 0 100 0 u 0 0 0 B * (:.UDAIUS A A 0 0 0 0 0 0 0 u ...... AS;> L >I* C 1 *i A A 0 u 0 0 1 100 0 0 I E , 1 u :.i .a. A 1 100 (I 0 3 100 0 0 "" G.\$J><l!PJDA A A 0 u ll 0 3 66 0 33 ...... G.\SJRUPODA A L 5 40 20 40 6 83 0 16 "" !-10 "' A A 0 0 u 0 0 0 0 0 COPE:POD NAUPL! I A N 113 71 15. 13 77 71 6 22 E. Af F rnrs A c 28 &5 10 3 13 61 7 30 E. Affl<<lS A 6 66 16 16 8 75 12 12 E. Ar f 1 'I l S M A 7 71 0 28 2 so 0 50 P. C 0 k 0 'I AT US A c 2 1UU () 0 0 0 0 0 P. C u f< U 'l ,\ I US F A 7 85 0 1 4 3 66 0 33 P. Cl:i<rn;Tus M A () 0 0 0 0 0 0 0 A. TO:iS A A c 2 50 0 50 7 42 28 *28 A. T (J:; SA F A 21 as 1 4 0 17 64 11 23 A* Tu:. SA M A 5 60 0 40 6 so 33 16 hAiiPACTICOIDA A A 2 SU 50 0 0 0 0 0 HAePAC T ICOIDA A c u 0 u 0 0 0 0 0 SCOT TOLA:!.\ A A 0 0 u 0 0 0 0 0 SC 0 T TU L A A c 0 0 0 0 0 0 0 0 ECTH.uSO*lA A 3 33 33 33 5 40 40 20 EC! tr.0S8'-IA A c 0 0 0 0 0 0 0 0 H. FOSTER! F A 1 0 10U 0 0 0 0 0 H. f OST E il I f.i A 1 0 100 0 0 0 0 0 c. VER:1All S A 0 0 0 0 0 0 0 0 c. VE'Rl1AL!S M A 0 0 o. 0 0 0 0 0 CIRR'IPEOIA A N 5 1.00 0 0 1 100 0 0 IA SALEM EN 1978 * * * * * * * * * * * * *

  • * * * * * * * * *
  • TABLE .e.-3 CONTINUED 01,uo 0800 TAX ON SD LI FE TOTAL PERCENT PEilCENT PERCENT TOTAL PERCEIJT PEl?f.ENT PERCE IJT STAGE NUMBER LI VE STUNNED DEAD NUMBER LI VE S TUliliE 0 DEAD ROT! ttf< SPP. A A 2 1UU 0 D 0 0 0 0 8. Al,GULAk l S A A (J D 0 D 0 D 0 0 B. CAUDATUS A A 1 100 (J 0 0 0 0 LI ASPLAl<CrlNA A A (J 0 0 0 0 0 0 0 TODA A A 0 0 0 0 2 100 0 D GHTROPJDA A A 1 100 0 0 4 75 0 25 A L 7 42 0 5 7 5 80 0 20 MO !I; A A A (J 0 0 0 0 0 0 0 COPEPOO 1jAUPLl I A N 107 64 2 68 54 4 E. AH A c 29 65 3 31 11 63 0 36 E. AFflN!S F A 3 66 0 B 2 lDO 0 0 w E.

H A 12 8.5 0 1 6 5 100 0 0 P. CuliONATlJS A c () 0 0 0 3 100 0 0 I-' P. CORONATUS F A 6 100 0 0 7 57 0 42 I P. COR0,1A I US M A 1 100 0 0 4 100 0 0 .i::. A* T 01, !>A A c 10 50 20 30 11 72 0 27 I-' .I. T 01, SA f A 26 65 11 23 25 56 1 2 32 Ul A. I 011 SA M A 10 40 20 40 10 60 10 ::.o HAR PA( I lCOIDA A A 1 100 0 0 0 fl 0 0 A c 1 0 100 0 0 0 \.] 0 A A 0 0 0 0 0 0 0 0 SCOT TOL ANA A c 1 100 0 a 0 0 0 0 A A 1 100 0 0 1 0 100 (1 ECTl1lOSJ';A A c s 60 20 20 u 0 0 0 h. FuSTER! F A 0 0 0 0 0 0 0 0 H. FOSTER! M A 0 0 () 0 0 0 0 u c. VER11ALIS f A 1 HiO 0 0 0 0 0 0 c. VEkl<ALI S ,., A 1 100 0 0 0 0 0 () C!RRlPEDlA A N 5 80 0 20 3 100 0 0 IA SALEM EN 1978 TABLE 3.1.8-3 CON TlNUEO 1200 TA XON SEX LI FE TOT AL PERCENT PERCENT PERCENT STAGE NUMilER LIVE STUNNED DEAD ----------------------------------------------------------------------------------- ROTIFER SPP. A A 0 0 0 0 8. AIJGULAR IS A A 1 100 0 0 8. CAUOATUS A A 0 u 0 D ASPLMICHIJA A A 0 0 0 0 A A 2 100 0 0 GASTROPODA A A 2 50 0 50 GASTROPODA A L 5 80 0 20 MOINA A A 1 100 0 0 COPE POD NAUPLII A N 33 90 0 9 E. AF FINIS A c 18 61 5 33 E. AF FINIS A 5 100 0 0 w E. AFFINIS M A 4 25 25 5ll P. TUS A c 2 100 0 0 I-' P. TUS F A 6 83 0 16 I P. CORO'JA rus M A 0 0 0 0 """ A. T Oris A A c 5 60 0 40 I-' A. I OllS A F A 41 60 2 36 m A. TONS A M A 4 50 0 50 HARPAC l ICOIDA A A 4 25 25 50 c 1 0 0 1 OD SCOTTULANA A A 1 1 00 0 0 SCOTIOLANA A c 3 100 0 D EC TlNOSO"iA A A 5 80 0 20 Ecr rnoso:1A A c 0 D 0 0 H. FUST UH F A 1 100 0 D H. FOSTER I M A Cl 0 0 0 c. VERNALlS F A 0 0 0 D c. M A 0 0 0 0 ClRRIPEOIA A N 7 71 0 28 IA SALEM EN 1978 * * * * * * * * * * * *

  • w I-' I "'" I-' -.J * * * * * . , TABLE 3.1.8-3 CONTINUED
  • * *
  • e DA TE 06/28178 -06/29178 LlfESTAGE KEY: A ADULT DHCHAllGE*

c COPEPODID COLL!:CTION 15 34 0651 L LARVAE wA TE 'lP. ( c) 29.0 3[). 2 N NAUPLI I co:. 0. DELTA T ( c) 3.8 6.1 y = CYPRIS LAilVAE DISS. OX YGfli CMG IL> S.2 6.9 SALlldTr CPPTl 4.0 6.0 FILTERED CM3) 3.6 llOOO 0200 TAXtHl SEX LI f E TOTAL PERCENT PERCENT PERCENT TOTU PERCENT eF:lCEt<T PERCONT STAGE IWMllER LIVE STUNNED DEAD NLJff,Bf:R LI VE S D DEAD --------------------------------------------------------------------------------*-------------------------------------------------- ROTIFER S?P. A A () o o o 1 100 0 0 El. CALrClfLORUS A A 1* 100 [) 0 o* 0 0 0 a. Al1GULAR IS A A 1 1UO 0 o 1 100 0 0 B. ouuA rus A A 1 100 0 0 0 0 0 u NEN.:.TODI\ A A 2 50 0 50 1 100 a 0 PDLYCnHTA A L 1 100 0 0 0 0 0 0 GAS r tiuPQilA A L 11 0 36 7 100 () l) AC t. H 1 A A 0 0 0 0 1 100 0 0 A A 1 1 O(J 0 u 1 100 0 () COPE: POD NAUPLI I A N 90 72 13 14 64 iO 29 E. A c 1 7 82 [j 1 7 13 n 0 7 E. AfFl'.'<lS F A 5 60 20 20 3 100 0 0 E. A Ff I *'II S M A 1 1 UO 0 0 3 100 0 0 0 I AP iU"':.lS A c 1 () 0 1 00 o* 0 0 0 P. COliuNATUS c 2 50 0 50 0 () (J u P. C (;R 0 AT US A 7 71 () 28 9 77 a 22 P. rus M A 80 20 o 2 100 0 0 A. TO:i S" A c 13 69 0 30 15 73 0 2o A. T Cir. S.; F A 9 55 0 44 8 o7 0 1 2 A. 1 0 A 4 25 25 50 0 0 0 0 HA ii PAC I ICOI DA A A () 0 0 0 0 0 0 0 HAMPACTlCOIOA A c 0 I) 0 0 0 0 0 0 SCOT TU UNA A A 0 0 0 0 0 0 o (J SCOT llll><NA A c 0 0 0 0 0 0 0 0 ELT rr.u;,o.'"* A A 5 40 20 40 1 0 100 0 A c 2 0 u 100 0 0 0 0 CYCLliPS A c 0 0 0 0 0 0 0 0 CIRlllPEOlA

r. N 6 83 16 0 1 100 0 0 CRY PTOtll SCUS LARvAE A L 0 0 0 0 0 o 0 0 IA SALE:;, EN 1978
  • TABLE 3.1.8-3 CONTINUED 0400 0800 T X U'J SEX LIFE TOTAL PERCENT PER.CENT PERCENT TOTAL PERCENT PERCENT PERCENT STAGE NUMBER LI VE STUNNED DEAD NUMBER LI VE STU*itlED DEAD R0T!fti; SPP. A u I) 0 0 0 0 0 0 s.

A A 1 1UO 0 0 0 0 0 0 A A 0 0 0 0 0 0 0 0 !;. C. tJ D LJ S A A () 0 0 0 0 0 0 0 t: !::. i-1.\ T i"J C' A A A 0 0 0 0 2 100 0 0 POL'rCHAETA A L 0 0 () 0 0 0 0 0 G-l.S l.lUP(JD.\ A L 8 87 0 12 6 83 0 16 Ac.:.;..! I A A A () () 0 0 1 100 0 0 OST i< t CU:),.\ A (J 0 u 0 1 0 0 100 (CPtP0V I A ri 96 68 9 21 59 62 0 37 E. l '11 S A c 26 88 3 7 1 5 53 6 40 t. AfFl'iiS F A 2 100 u 0 u 0 0 0 f:. A f' I 'l I 5 M A 6 83 16 0 1 100 0 0 w DI I* p rv:**tJ s A c u 0 () 0 0 0 0 0 P. " c 3 100 ll 0 3 0 0 100 I P. u.1.:u 'J .1 r us F A 1 7 76 0 23 13 53 0 46 ""' P. (Uf. M A u u () 0 1 100 0 0 T 0 SA A c 18 55 5 38 8 37 0 62 co A* 4 F A 14 71 0 28 24 50 0 50 ". 1 tli,S M A 10 70 10 20 10 so 0 50 H!Rf'AC T ICOIOA A A u 0 0 0 1 0 0 100 HARPAC I ICO!DA A c 0 0 0 0 .2 100 ll 0 SC 0 1 T 0 LA 'I A A A 0 0 0 0 2 1 llO 0 0 scurrnu:iA A c 1 1 OU 0 0 1 1 OD 0 o EC T liW>O A A 5 20 40 40 8 37 0 62 A c o 0 0 0 3 100 o 0 CYCLOPS A c 1 100 0 0 o. 0 0 o A N 2 100 0 o 4 100 0 (J t RY PTO I*! SC US LARVAE A L o 0 0 0 1 100 0 o IA SALEM EN 1978 * * * * * * * * * ** * *

  • * * * * * * * * * * *
  • TABLE 5.1.8-3 CONTINUED 1200 TAXOfl SEX LIFE TOTAL PERCE:NT PERCENT PERCEllT STAGE NUMBE:R L!Vt STUNNED DEAD ROTlHH SPP. A A u 0 0 a B. CALYCifLOkUS A A *1 100 u 0 B. Ar;GLJLAR IS A A 0 ll 0 0 El. CAUDATUS A A u 0 () 0 Nti*1ATOOA A A u 0 0 0 POLiCHAE:lA A L 1 1 00 0 0 GAS TRllPODA A L 7 1 IJO 0 0 AC AR !ti A A A 0 0 u 0 OSTRACODA A A 1 (J ll 1QQ COPE POD t<AUPLI I A N 32 i'5 0 25 E. Affl"HS A c 11 81 9 9 E. AF F JI/ IS f A 4 75 0 25 E. AFflNlS M A 5 100 0 0 w D l AP TO MUS A c 0 u 0 IJ P. CuRll'IA rus A c 0 0 u 0 I-' P.

TUS F A 12 11.lU u 0 I P. I M A 3 66 0 33 .J:>. A. TOii SA A c e 87 0 12 I-' A. r or. s A f A 14 71 0 2k l.D A. T Orr s A A 2 50 0 ;o A A 0 u 0 0 HARPACT!COIDA A c u 0 0 0 SCOTTOLAl<A A A 1 0 0 1 Q!J SCOTTOLAt-IA A c (I 0 0 0 EC T A A 13 46 0 55 EC T A c {J 0 0 0 CYCLOPS A u 0 0 0 A N 1 0 u 1 DO CRYPTON!SCUS LARVAE A L l) 0 0 0 IA SALHI Erl 19711 w

  • DATE LUC A I I 0 .'I CuLLtCTION ll.E Tf:*;P. CC> C1J:ru. CELIA T CC) DISS-OXYGEN S.\LltJ! T¥ CPPT l VOLUME FILTERED (M3l TAX UtJ 09/13178 -U9/14/7g INTAKE 0953 U5U2 21.2 23.5 8.2 11.1 6.5 B.3 6.1] 9.0 6.6 SEX LI FE STAGE TOT AL NUMB rn TA8LE 3.1.8-3 COl<T lNUEO PERCENT UH ODDO PERCENT S TUlrnED LIFESTAGE KEY: A ADULT PEP CENT DEAD C COPEPODID L LARVAE N = NAUFLII Y = CYPRIS LARVAE TOTAL NUMBER 0200 PERCENT LI VE PERCENT STU*<NED PERCE rl T DEAD SPF. A A 0 ll 0 0 0 0 0 0 .'; t :**AT(; iJ A A A 3 100 0 0 0 0 0 0 POL l Ctii\ETA L 2 100 0 0 1 100 0 0 OLIGOCf<<IETA A u 0 0 0 0 0 0 0 Gt.STkVP.JDA A A 0 0 u 0 0 0 0 0 Gt.ST l<VP'.J'..J,\

A L 7 71 1 4 14 14 50 28 21 CCPtF'JU '..\UPLll A N 12 91 0 8 6 100 0 0 ;;_ .\ f f l 5 M A 0 0 0 0 0 0 0 0 p_ C Ore u 1) T US A c 0 0 0 0 I) u 0 a P. TUS F A 2 100 0 0 3 100 0 0 P. COR*J'*J.\ TUS Ill A 0 0 0 0 1 0 100 0 A. TONS.\ A c 1 7 76 5 17 12 58 8 33 * TU'< SA F A 12 66 8 25 1 100 0 0 ". TVi'4:, A M A 1 100 0 0 1 0 0 1 (JO A A 11 81 9 9 10 80 10 10 o. A A 2 100 () 0 0 0 0 0 o. CGLCARV.\ A c 0 0 u u 1 100 0 0 A N 1 100 0 D 0 0 0 0 IA SALEM EN 1978 * * * * * * * * * *

  • * * * * * * * * * * * *
  • TA fl LE 3.1.8-3 CONJll,lJEO 04Li0 0800 TA Hi Ii SEX LI FE TOTAL PEi<CENT PERCt'Nf PERCENT TOTAL PERCEllT PERClNT PERCE I< T S T4GE NUMBl:.R L!H STUNNED DEAD /.!UMBER LI VE STUr;l.ED DEAD ROTIFER oPP. A A 0 u 0 0 0 0 0 0 NEMATODA A A 3 100 0 0 0 0 0 0 POUCrlAETA A L u 0 0 0 0 0 0 (J OLIGOChUTA*

A A [] u l) 0 0 0 0 0 uA5 fROPJDA A A ll () 0 a 5 100 0 () A L 12 83 16 0 11 72 0 27 COPcP0v N.<UPLl I A N 7 71 0 28 4 75 0 25 E. hilU'1S i*i A 0 0 0 0 1 100 0 0 P. TllS A c 0 0 u 0 1 100 (J 0 P. A 3 1,;6 33 0 2 100 0 Li P. M A ll u ll 0 0 0 0 [J A. J 1lt, SA c 1 5 80 0 20 10 40 i) 60 A. TOl*S A A 4 75 ll 25 8 75 0 25 A. TOl*1SA M A 1 (J 0 100 0 0 0 0 EC T l1;050'1A A A B 75 0 25 8 75 1 2 1 2 o. COLCAf<VA A A 1 100 0 0 0 0 u (J w o. CuLCARVA A c u 0 0 0 0 0 0 0 A N 0 0 0 0 *o 0 0 0 I-' I 1200 N TA XOI* SEX LI FE TOTAL PERCUH PERCENT PERCENT I-' ST4GE NUMBER LIVE STUNNED DEAD SPP. A A 1 0 0 100 A A (J 0 0 0 PuL 1CtiAE T4 A L 1 (J 0 100 OL!G1lC HH TA A 2 Sil () 50 GAS TOUPOilA A A ll 0 0 0 GASTROPODA A L 17 64 35 0 COPEPOD -*AUPLl l A N 6 33 0 66 E. A ff I 'US M A u 0 I) 0 P. CO!iO.'lATuS k ll u 0 0 P. A 3 1 (JU u 0 p. co.u,*1.; 1 us M A 1 1 IHJ 0 0 A. T

. :. A c 4 50 0 50 A. TO,,SA F A 6 66 0 33 A. TOI, S M A (J 0 0 0 EC TI 0>1A A A 8 ar u 12 o. CllLOkVA A A 0 0 0 0 o. COLCARVA A c 0 0 0 0 A N 0 0 0 0 IA StLEM !:N 197b w I-' I ""' N N
  • 0 A Tf: 09113178 -09/14178 l 0 C T I tJ :, DISCHARGE C0LLH l I 0'< Tl t 0957 0506 w l. Tr: t. TE. "1?. (C) 27.0 31.7 cu u .. UELTA T ((} 8.2 11 .1 S. OUGErl (MG/Ll 4.4 6.0 S >l L l t1 I r i 'PP r J 5.0 10.0 VOLUMt FIL HRl:O ( '13 J 6.6 T 4 AU SEX LI FE STAGE TOI AL TABLE 3.1.8-3 CONTINUED OUOll PERCENT PERCENT LI VE STUNNED LlfESTAGE KEY: A c L N y PERCENT DEAD ADUL I COPEPODID LARVAE NAUPLI I " CYPRIS LARVAE 0200 TOTAL PERCENT PERCENT PERCENT NUMBER LIVE STUNNED DEAD RJTIFER SPP. A A 0 0 u 0 0, 0 0 0 ROT If E:.<A A A A 1 1 uo (l 0 0 0 0 0 :1urnuLCA A A 2 5ll 0 50 0 0 0 0 a.

A A 2 5ll u 50 0 0 0 0 r" t. .-: ti. IL) 0 A A A 5 u 0 100 13 23 0 76 A E 3 33 0 66 0 0 0 0 A L 0 0 0 0 1 100 0 0 GASiHuPoo:. A A 1 1 OU 0 0 0 0 0 0 A L 9 88 11 0 18 100 0 0 I A N 32 81 3 1 5 27 77 11 11 COPE:PUD "1-'UPLI l F A 0 0 u 0 0 0 0 0 P. llJS A c 1 0 100 0 0 0 0 0 P. CUPu"IATUS F A 5 1 OD 0 0 3* 33 0 66 A. I 011 5 A A c 6 8.3 16 0 21 71 9 19 A. lll*t s .. F A u u 0 0 1 100 0 0 A. Tor.;; A M A 3 1 (JQ 0 0 2 so 0 50 H*RPACT!COIDA A 0 0 u 0 1 100 0 0 t: C T I'* 0 SJ :H A 9 88 11 0 10 80 20 0 EC T A c 0 0 u 0 1 100 0 0 c. vE:;<t1ALiS F A 0 0 0 0 0 0 0 0 E><G*SlLUS A A 0 0 0 0 0 0 0 0 C!Rk!Pt:D!A A L 0 0 0 0 0 0 0 0 A ll 4 50 50 0 2 0 50 50 CRYPTOtdSCUS LARVAE A L 0 0 0 0 [) 0 0 0 IA SALEM E 0 N 1978 * * * * * * * * * * * *

  • * * * * * * * * * * * * ., TABLI: 5.1 CONTINUED 041JU OdOO Oil SEX LJf E TOTAL PEHCHIT PI: RC c llT PERCENT TOTAL PERCEt<T PfRCEllT STAGE:

ER LI VE STUNlll:D DUD NUMciER LI VE 0 [;A 0 w

  • TA81.E ).*J.8-4 MEAN DENSITY CNUMBENS/100 CUHIC METfRSJ, DATE, OF

-1978. DA 1E: NO. CJF SAMPLES TEMPERATURE CC) DISSOLVED OXYGEN CMG/L) PH SALINITY CPPT> P U 1*1 P S 0 P E R A T l NG Oj/02/78-U)/Uj/78 1 2 (J.6-2.1 12.1-14.2 7.0 3.U-6.U 6 TOTAL VOLUME FILTERED 600.0 TAXON + 95Y. NUMBENS/10U CUBIC METERS CONFIDENCE LIMIT PLlLYCHAETA 6.).3.3 3.002 OLIGOCHAE lA u. 708 U.903 HlRUDlNEA U.3)3 0 .. 754 N. A1*1ERICANA 18 .108 10.356 c. AL1"1YRA 1. 8 7 5 2.876 E. TRlLOBA U.183 0.404 c. POLIT A u. 16 7 0.367 c. LUNIFRONS 0.667 *1.467 C 0 R 0 P 111 U i*I SPP. 24. l I 7 21.330 G Ai'-i US SPP. 104.':>92 39.886 M. NlrlDA U.442 0.972 M. EDwARDSI 12.967 8. 8'::>6 CAPRELLIDAE U.167 0.367 c. SEPTEMSPINOSA 4.4l5 3.432 INSECTA D. 217 0.477 CHlf<ONOMIDAE

0. 21 7 0.477 IA SALEM EN 1978 * * * * * * * * * * *
  • w I-' I ""' IV Ul * * *
  • DA IE NO. Of SA1*lPLf:S wAJER TE:MPERATURE

(() DISSOLVED OXYGEN (MG/L) PH SALINITY (PPT> OPE:RATING

  • U3/16/78-03/17/7b 8 2.5-.Lb 11.6-1j.b 7.2-7.3 'l.0-4.0 2-4 TOTAL VOLUME FILTERED (M3) 400.0 TAXON POLY CHAE TA OLlGOCHAETA N. Ai*1ERJCANA
c. ALMYRA L. PLUMULOSUS CvkOPHIUM SPP.

SPP. M. t.DwARDSl

c. SE:PTEMSPINOSA
  • TABLE: .5.1.8-4 C 0 I l N Li E ll * * * * + 954 NUM8ERS/100 CUBIC METERS CONFIDENCE LIMIT 1
  • 2 5 u 1
  • 5 .3 2 2
  • s Ll l) 4. () 72 59.UUU 49 * .526 6. 5u1j 6. i 77 u.SOU u.714 8.250 15.0(6 95.UUO 3 7 .109 22. 01)0 15 * .:>:d 2a5u0 4.623 IA SALEM EN 1978 *
  • w I-' I ,f:>. tv 0)
  • DATE 110. OF SAMPLE:S WAIE:R lEMPERATURE CC) DISSOLVED OXYGEN CMG/LJ PH S AL 1 tJ IT Y (PP T > PU 1.1 P S OP E R A T I NG 04/19/7d-04/20/78 9 1u.2-11.o 8.8-11.U 7.0-7.6 5.5-8.0 1 T 0 I AL V 0LU1'l E FILTERED (t.13) TAXON N. BACHE! POLYCHAtlA OLIGOCHAUA HIRUD!NEA N. AME: fl IC ANA c
  • Al1'ivRA E:. TRlLOBA L. PLU1>>11JLOSUS C 0 k 0 P H I U 1*1 5PP. GAMf>iARUS 5PP. f:D\.1ARDSl P. PUG IO c. SEPTEMSPINOSA R. HARRlSil * * * !ABLE 3.1.8-4 C 0 T IN U ED + 95% NUMBERS/1UU CUdlC METERS CONFIDENCE LIMIT (J * .S-1 1 o .* l1 7 39.644 37.401 0.633 1.460 2(J.922 6620.289 4757.352 1.556 1 .1 34 1. tltl9 1.894 2. 522 2.988 1o.144 9.384 SD. 2UO 176.295 25.o7tl 19.S53 0.9.B 1. 016 3o.456 28.618 1.460 IA SALEM EN 1978 * * * * * * *
  • w ...... I """ N -.J * * * * *
  • IAbtE ).1.8-4 CONTINUED
  • * *
  • DATE NO. OF SAl*1PLES WATEk TEMPERATURE CC> DISSOLVED OXYGEN CMG/L) PH SALINITY (PPJ) PUMPS OPERATING 06/28/78-0o/29/78 9 21.0-2b.8 6.6-8.4 6.4-7.1 4.U-b.(J 6 TOTAL VOLUME FILTERED CM3> 45LJ.(J TAXON + 95;.:. NUM8E:RS/1UU CU8IC METERS LIMIT --------------------------------------------------------------------------------------------------------

HYDROZOA lJ. 222 U.)12 8. lllRGlNlCA

u. a2 0.512 POLYCHACTA
1. 5 56 2.144 OLI GOCHAE TA 1 * .s 5 6 NU D I 8 A t* C H l A 44.222 L. AE:Sl IVA u.za 0.)12 ARGULUS SPP. l *. BS 1
  • 719 N. Af*iERICANA 4307).522 276b1.o84 L. AViER IC ANUS 12. 222 21.9':i(J CHIRlDOTEA SPP. :S * .5.53 2. 9 77 c. AL1*1Y RA 7. 1i'8 9. b2l E
  • TRlLOtlA 103.5)6 162.U13 c. POLIT A 12.667 10.on A* MEDlALlS .5. l 11 ;;
  • 6 7 5 SPP. 47. ?18 18.74"1 SPP. 1615.35) 697.446 M. NlllDA u.nz 0.512 M. EDwARDSI 1
  • 5 5 6 2,1t,4 P. PUGIO 67.li'"d 50.851 c. SEPlEMSPINOSA 390.db9 516.655 8t<A(HYURA 3.'111 2 .1.44 R
  • HARRISll 5149.778 5421.909 u. MlNAX 142.2n 230.791 DlPTERA Ou222 0.)12 !A SALEM EN 1978 *

.w f-' I N 00 * *

  • DATE OF SAMPLES TEMPERATURE (C) DISSOLVED OXYGtN (MG/Ll PH SALINITY (PPJ)

OPERA TING 07/12/78-07/13/78 12 24.0-25.0 6.2-8.0 TOTAL VOLUME FILTERED CM3> s.0-10.0 5-6 625.2 TAXON H 0 U GA !IJ V 1 LL I A SPP. IJ. BA CHU OL!GOCHAtTA HlRUOl'iEA MACOl**A SPP. L. POLYPHEMUS L. AESTIVA . nRGULUS SPP

  • C!RR!PEDIA N. Al>>Ei<ICANA L. AMER IC ANUS CHIR!DOTEA SPP. c. ALMYRA E
  • TR IL OBA c. POL!TA c. LUNJFRONS A.

ALIS C 0 R 0 PH I SPP. GAMMARUS SPP. r; I I JD A SPP. .. EDwARDSl PARAPU:USTES SPP. P. PUG JO c. EMSPINOSA R. HARRISII u. MJNAX CHil<ONOMl DAE *

  • TABLE 3.1.8*4

+ 95% NUM8ERS/1UO CUBIC METERS CONFIDENCE LIMIT 0.167 0.367 2.442 2.379 0.3.53 0.734 U.167 0.367 0.1b7 o.367 0.500 U.790 2b.U5 9.392 1.ouo 1. 014 0.167 0.367 28.500 27.153 3.992 2.027 0.333 0.495 18567.767 11662.938 64.658 62.971 1

  • 167 1.266 4.167 3.039 414.558 341.809 12.167 15.596 0.833 0.654 22.883 24.017 315.975 215.939 157:S.283 665.528 3.108 2.281 0.8.B 1. 008 5.667 4.750 1.608 1.864 129.875 89.100 59.264 24.050 21.841 .., 1429\1.000 15258.005 0.333 0.734 0 .16 7 0.367 IA SALEM EN 1978 ** * * * * * *
  • *
  • w f-' I N \D *
  • DATE NO. OF SAMPLES WATER TEMPERATURE (C) DISSOLVED OXYGcN (MG/Ll PH SALIN! TY CPPTl PUMPS OPERATING
  • 07/27178-07/28178 1 2 26 * .l-27.4 5.4-6.7 6.9-7.4 6.0-8.0 5 TOIAL VOLUME FILTERED (M3) 600.0 T AXON N. B:.CHE I PHIALIO!UM SPP. B. VIRGINICA D. U.UCOLENA PLAT11iEL11INTHES NEMATODA POLYCHAETA OLIGOCHAE IA hACOf'A L. POU PH EMUS L. AESl IVA SPP. N. AMtRICAtlA L. AMERICANUS
c. AUIY E. HIL08A c. POLllA
c. LUl'l!FKONS A. MEDlALlS L
  • PLUMULOSUS COROPHIUM SPP. GA M;*iA k US SPP. 1< l l 1 0 A HAlJS IOR l IDAE MONO(ULODES SPP. M. ED1;AkOSI PARAPLEUSTE>

SPP. ORCHESIIA Sl'P. P. PU610 c. BRACHYURA R. t1ARR !Sil u. MINAX

  • TABLE 3.1.8-4 CONTINUED
  • * * + 95X NUMBERS/100 CUBIC METERS CONFIDENCE LIMIT 3. UDO 1.:n3 1. 9U.l 68.333 31.524 Ll. 1b7 0.3o7 Ll .16 7 0 * .567 1.833 1. 8.S4 0.167 0.367 2. 5t1Ll 1
  • 5 4 5 0.50U ll.790 7o. 8.S.S 35.164 u. 8.S3 1. 008 U.3j3 0.495 :s. 1 6 7 2. UcU 19. 83.S 9.009 16!>7.B.5.l 1041.t!U2
44. 5ll0 37.596 2.500 2. 4\10 171.107 119.687 5.167 4.248 0.167 0.367
1. 63 7 6 * .))3 3.786 2. Ii .s3 2.oao 305.833 321.667 189.153 11.667 7.144 0.167 0.367 1.500 1
  • 5 4 5 7. 60 7 5.548 (). 3.5.5 0.495 U.167 0.j6? 3Qj.167 104.205 39.0UO 31.082 353.167 247.2Uj 12945.833 6051.140 25 .IU3 26.4S9 IA SALEM EN 1978 *
  • w f-' I w 0 * * *
  • DATE rio. Of SAMPLES wATE:I< TEMPERATURE:

CCJ DISSOLVED OXYGEN CMG/L) PH SALIN I TY (PPTl PUMPS OPERATING UB/10/78-08/11/78 12 26.7-28.7 6.U-9.8 1.2-* 7.4 6.0 4-5 TOTAL VOLUME FILTERED CM3l bUO.U !AXON HJDRUlOA N. llACHU PH I All D IU!*o SPP. ll. V !Pu ltd CA TUR8tLLAR!A

s. tLLIPl !CUS RHYNCf10COELA Al.JNE:LlDA POLYCf1AETA OLI GOCHAE: TA NUDIBl<Al1CH!A MACU!**A SPP. L. POLYPHEl*lUS L. AE:STIVA ARGULUS SPP. I<. AMRICOIA L. Ar;E:1< ICAIWS L. SAVIGIJYI
c. ALr11 RA E
  • T LOE;A c. POLI TA c. LUld FRONS A. r1EDIALJS A>IPrl I P(JDA COkUPHIU"1 s pp. SPP. M. NlllDA HAUSTORIIOAE 1>101\JUCULODES SPP. M. EQ,iAROSI PAilAPLEUSTES SPP. ORCHEST Ill SPP. P. PUG I u c. SEPIE'ISPJf>IOSA
c. &APlDUS R.

CHlRONOMIDAE

  • TABLE 3.1.8-4 CONT l'IUED t 95X NUMBE:HS/10U CUBIC METERS CONFIDENCE LIMIT 55.B.S3 50.5.SY 1. DUO 1.484 3.853 2.187 29.b.S3 30.U10 1 * .s 53 1
  • 4 6 7 0.167 0.367 1. 3.33 2.256 0.167 0.367 3. 8 .SS 2 .198 0. 3.S3 0.495 3.500 2.507 0.167 0.367 0. 1t>7 0.367 2.000 1.5.B 21:. lb 7 9.835 6057.3.n 6121.981 4.S.333 50.027 0.167 D.367 1.667 1
  • 7 83 58.SUO 39.659 31.853 24.851 4.500 2 .4 31 55.333 26.586 (J. 1 b 7 0.367 703.500 252.872 604.167 422.450 24.000 9 .151 0.33.S 0.734 4. 16 7 4.107 23.167 17.164 3.JOO 2. 2(J 1 0.1b7 Q.j67 j43.667 149.549 1j.167 12.456 1642.167 97b.645 0.167 O.j67 "1604.667 2792.654 0 .1 bl o.367 IA SALEM EN 11/78 * * * * * *
  • * *
  • w f-J I .J::>. w f-J
  • DAH NO. OF SAMPLl:S WATER lEHPERATURE (C) DISSOLVED OXYGEN CMG/L) l'H SALINITY (PPTl PU*tPS OPERATING
  • 08/31/78-09/01/78 12 26.5-27.0 5.1-b.2 7.ll-7.3 o.0-B.O TOlAL VOLUME FILTERED (M3) 5-6 72,.0 TAX ON HYDROlOA (1*\tDUSAE)

HYl>HOZ0A 111 (MEOUSAE) BOU(,All*,v!LLIA SPP. "* f> AC h E: l VIRGlNICA RH I r* C H 0 C l) EL A POU CHAE IA HlRUDH<t:A SPP

  • N. AMEklCANA L. Al'!:RICAr.us
c. ALl'*YRA E. TR1L08A c. POLIT A c. LUN lF ROI* S A. Mi:OlALlS BOPYiilDAE L. PLU>*tJL05US COROPH!UM SPP. GA RU S SPP. M. N!llOA M. EOwARDSI PARAPLEUSTES SPP. ORCHE511A SPP. P. PUG IO c. SEP!i:MSPINOSA
c. SAPlOUS R. HAR"lSII u. MINAX
  • TAHLE 3.1.d-4 CONTINUED
  • NUMBtRS/100 METERS
12. 775 O.lo7 3. 992 292. 21JI:! 0.167 2. 4 .l.l I.). 1 6 7 1. 275 10.5'12 10952.208 101.658 1
  • 1 5 8 589.542 34.550 1. 983 5. 758 0. 3.l3 U.167 *1,;B. 592 737.600 7. 61l0 53.25d 0.275 U *. B.S 214.375 54.433 3.550 2b. lill.S 148.100 * * * * + 95 l: CONFIDENCE LIMIT 105.584 9.115 0 * .l6 7 4.068 228.112 0.367 1. 660 0 * .l6/ 1. 5.3i.4 737u.201 100.6il5 1
  • 155 353.184 31.065 1
  • 41 2 3. 801 D.7.S4 0.367 59.460 7(J8.258 7.11.l 44.522 0 .1.95 135.46) 65.542 2.628 30.995 105.926 lA SALEM EN 1970 w f-' I ,p. w N *
  • TABLE 3.1.8-4 1 INUE.D DATE OF SAMPLES WATER TEMPERATURE CC) DISSOLVED OXYGEN CMG/Ll PH SALINITY CPPTl PUMPS OPERATING 09/13/18-09/14/78 10 21.2-23.9 6.3-7.9 6.6-7.4 6.0-9.0 5-6 TOTAL VOLUME. FILTERED CM3) 600.0 TAXON + 95X NUMBERS/1UO CUBIC METERS CONFIDENCE LIMIT CMEDUSAEl 391.4UO 261.895 HYDROZUA #1 (;*IEDUSAU 18.UUO 10.l:S11 N. 8ACHU 2.8UO 3.827 8. VI RGllllCA 21b.8Ull 168.798 AC I lid AR I A 1.000 1
  • 21 6 POUCHAETA
3. 400 4.105 0.20U 0.452 NU RA CH I A 1.6UO 2 .111 I*; AC A SPP. 0.800 1.000 L
  • AEST I VA 2.60J 3. 2.38 ARuULUS SPP. 5.oOO 3.358 1'. Ah ERIC A I< A 776\15.QiJO 36101 .191 L. H*ER!CAIWS 765.UiJll 591.878 c. AL*'Y RA S.OOll 3.850 E. rnJLOllA 3756 * .!00
c. POLIT A 2.1.000 20.622 c. LUtlJ FRONS 1.400 IJ.966 A*

ALIS 23 .* 0QO 18.632 L. PLU"1ULOSUS 0.600 1.357 CDROPH!UM SPP. 51.60U 13.5)2 SPP. 1070.8UO 62o.412 M. NI TIDA 9.21JO 7.636 M. EvwARDSl 100.600 91.084 PARAPLtUS TES SPP. 2.000 1 .1 68 P. CYPRIS 0.200 0.452 P. PUG! 0 46.600 36.'74 c. SEP I E ";SPIN 0 SA 360.400 335.983 c. SAPJOLiS 15.600 9.9.30 R

  • HARRISII 588.0UO 672.796 u. Ml r*AX 1.BIJU 2.47:.i CH I Ror.OMI DAE o.21JO 0.452 IA SALEM EN 1978 * * * * * * * * *
  • *
  • w I-' I .c.. w w * * * *
  • TAtlLE 3.1.8-4 CONTINUED
  • *
  • DAH NO. OF SAMPLES WAltR (Cl DISSOLVED CMG/L) PH SALltll TY (PPT>

10/11/78 6 17.3-1ti.U 6.9-7.3 6.9-7.2 6.0-8.0 TOlAL VOLUME FlLTERtD (Mj) 3-4 450.0 TAXON + 95X NUMBERS/100 CUBIC METERS CONFIDENCE LIMIT HlDkOZOA (NfDUSAEl

1. i.l j 1. 34 2 ACT I Id AR I A 0.217 0.5)7 POLYCHAETA
o. 867 1
  • 11 4 NljCIBRANCHIA 1
  • ll b 3 1.IJ27 L. AtSllVA ).(67 4.?47 ARGULUS SPP. 1. ji)Q 1.220 ti.

!CANA 24U2. lo.5 1397.818 L. AnRJCA'IUS 72.850 45.9'17 c. RA 2. 617 2 .1 5 E. TRILOBA 306.650 276.o20 c. POLIT A 1 .1 Ull 2. 2 2tl A. MtDlALlS 7.317 9.719 BOPYlllDAE 2.o50 4. 65'+ COROPHIUH SPP. 153. 98.5 210.894 GAM;q SPP. 288.183 400.)3.S M. hill DA 1. 1 00 1.848 f'I. EOwARDSl 2.217 3.:192 PAl<APLEUSTES SPP. 62.d50 156.19S OliChESTIA SPP. 0. 4:13 0. P. PUGIO 35.967 51.44& c. SEPTEMSPINOSA 7.0o7 9.41c> c. SAPlDUS 1.967 1. 919 R. 7.7.53 5. 021 !A SALEM Er; 1978 * *

  • w I-' I ""' w .JO> * * *
  • DA TE NO. Of SA;*'PLES WATER lEMPERATURE CCl DISSOLVED OXYGEN (MG/L) PH SALIN! 1 Y (PPT l PUMPS OPEHATING 11/01178-11/02/78 8 13.5-14.5 7.9-9.5 6.0-8.0 2 TOTAL VOLUME fILTERED CM3l 485.0 TAXON (i"tDUSAEl AC[IN!ARIA RHYl*ChvCuE:LA POLYChAUA HIRUDl'<EA I* U D 16 RA 11 CH I A (JoV.A SPP. L. AEST!vA fl.

l CA*IA LE:UCOtdDH L * ( .

t. HlLOBA c. POLI IA A. MEDI ALIS BOPYRIOAE SPP.

SPP. N 111 DA M. EDl,ARDSI PARAPLEUSTES SPP. ORCHESTIA SPP. P. CYPklS P. PUG IO c. SEPHMSP!NOSA (. SAPIDuS R. HARRlSll *

  • TABLE 3.1.8-4 CONTINUE:O CUBIC METERS 9. 41lll U.250 u.2uu 0.663 0.750 0.163 ll.SUU u.

1705.i.58 U.d25 171.6Hd 14.950 1B.650 0.413 2.uoo o.suo 8.S.2(5 224.b5U 1.325 2.875 5.225 0.2UO U.16.3 12.225 7.400 0.2UO U.5UO * *

  • COUFIOE.NCE LIMIT 20.229 u. 591 0.473 1 .190 0.866 0.384 1
  • 182 15°35.008
1. 951 114.442 11.21!1 87.966 0.658 1.999 1.182 45.4!!9 129.781 1.936 2.425 2.549 0.473 0.384 15.852 8.602 0.473 0.774 IA SALEM EN 1978 * * * * *
  • *
  • w f-' I .i:::. w Ul -----------------------------------------------
  • * *
  • TABLE .l.1.8-4 CONT I NUl:D * *
  • DATE NO. SA11PLE:s hATl:R Tl:MPl:RATURE (C)

OXYGEN IMG/Ll Prl SAUfll 1 Y <PPT l PU*"FS OPERATING 11/21/78-11/22178 12 8.5-12.5 5.9-ts.9 6.8-7.1 10.0-15.0 s TOTAL VOLUHt f ILTl:REO (M3l 807.ll TAXON + 95% NUMBER$/100 METERS CONFIDENCE LIMIT HYOROZOA U1£DUSAEl

1. 042 1. 527 POUCH*ETA
u. 275 0.419 HlRUDlrlEA 2.8(5 2.893 r.uo lf:!R Ar*C HI A u. l 1J8 L. AES I I VA 2. 2 5 ll 1. 305 N. Al*'l:R!CANA 1049).042 4(50.09'J L. Ahl:k!CANUS 13.:i.342 115.428 c. ALhYKA .l * .525 2. 8u4 E. lklLOoA 15.9-53 16.91.5 BDPYtilDAE O.d83 1 .UH SPP
  • 121.225 85.'74 (,A US SPP. 49.175 29.290 M. fl l 11 DA 1.15U 1 .1 -59 M. cUwARDSI 2.95U 2. 851 PARAPLtUSTES SPP. 4.442 1.679 P. PUGIO 12. () 1 l 13.057 c. StPTEMSPINOSA
17. 600 15.442 c. SAP I DUS 0.167 O * .lcd R. HARRIS II 0 *. l.5 3 o. 734 IA SALEM EN 1978 * * *
  • w I-' I ,p. w O'\ *
  • DA TE NO. OF SAMPLES wlTE:R TEMPENATURE (C) DIS*OLVtD OXYGEN (MG/L) PH S A LI td T I ( PP I l PUMPS OPERAT ItiG 12/13178 6 5.0-6.0 9.9-11.0 7.1-7.4 s.o-6.0 TOTAL FILTERED (M3) 3-S 300.0 TA XO'l TABLE 3.1.8-4 cornINUED

+ 95:t 'lUMBERS/100 CUBIC METERS CONFIDENCE LIMIT RHY'iCHOCOELA 0.667 1 .084 POLYCHAE:T A 1.B.3 1. 714 HIRUO!r*E:A .5 * .53 3 2.168 N. 847S.667 7781.627 LEUCONIDAE 0.33.5 0.857 L. Ar>:E:RICANUS 6U.667 64.425 c. ALMYRA 9.667 8 .121 E. TRILUtlA 24.000 23.935 COROPt11UM SPP. 558.667 266.220 GAMrlAl<US SPP. 324.UOO 128.420 M. 1< l TI DA 40.667 25.699 M. E:uwARDSI 42.UUO 11. 344 PARAPLEUSTES SPP. 9.33.3 9.070 P. PUC.IO 3.333 2.542 c. SEPTEMSPINOSA 36.667 16.829 R. HARRIS II O *. B3 0.857 IA SALE:M EN 1978 * * * * * * * * * * *

  • *
  • w I-' I .t:> w -...) * * * * * * *
  • TABLE 3.1.8-5 RANK, TOTAL NUMBER, ANNUAL MEAN DENSITY ANO PERCENT TOTAL CATCH OF MACROINVERTEBRATE PLANKTON -1978. DATE NO. OF SAMPLES

<Cl OlSSOLvEO OXYGEN CMG/LI PH SALINITY (PPT) OPERATING 03/01/78-12/31/78 128 0.6-28.7 5.1-14.2 6.4-l.6 1.0-15.0 TOTAL VOLUME FILTERED (M3) 1-6 6857.2 TAXON RANK NU*lBER N. ANA 1 1463423 R. HARRlSil 2 20Dll04 SPP. 3 38 7.Sl E. TRlluBA 4 29681 SPP. 5 13336 BRACHYURA 6 1 21 31 L. HlERICANUS 7 7663 P. PUGIO 8 n63 c. SEPTEMSPINOSA 9 5197 HYOROZOA CMEOUSAEl 10 3689 B. v!RGHdCA 11 3661 u. Ml 1< AX 1 2 1804 M. ED>1AROS! 13 14h6 NUDIBRANCHIA 14 864 A. MEDI ALIS 1 5 720 c. POLIT A 16 681 M. N!TlDA 1 7 475 PARAPLEUSTES SPP. 1 8 414 ARGULUS SPP. 19 394 c. ALMYRA 20 292 L. AES! lVA 21 261 POUCHAETA 22 258 H!OPOZOA (MEOUSHl 2 .s 180 c. SAPIOUS 24 112 HlilUDINEA 25 10.3 N. BACHE! 26 81 c. LUNIFROIJS 27 72 i'ONOCULODES SPP. 28 39 Pt1IALIOIU;1 SPP. 29 31 L. PL UllLJLOS US 29 31 OLlGOCHAETA 31 26 CklRIDOTCA SPP. 32 22 BOPYRIDH 32 22 TURBELLARlA 34 19 SPP. 34 19 *

  • INDICATES REPORTABLE NUMBERS/100 CUBIC METERS PERCEIH 21657.240 81.6 2'1s\l.1:16S 11
  • 2 57.S.181 2.2 439.250 1. 7 0.7 119.527 0.7 113.405 0.4 108.965 0.4 76. 911 0.3 54.594 (J. 2 54.179 0.2 26.o97 ,0. 1 21.991 0 .1 12.786
  • 10.655
  • 10.078
  • 7.0.>0
  • 6 .127
  • 5.831
  • 4 *. 121 * .). 86.3 * .)
  • d 18
  • 2.064
  • 1.657
  • 1.524
  • 1 .199
  • 1.066
  • 0.57/
  • 0.459
  • 0.459
  • 0.385
  • 0.326
  • 0.326 .. 0.281
  • 0.281
  • IA SALEM EN i978 * *
  • TAX ON RANK RHYl<CHOCOELA 36 ORCHESTIA SPP. 37 ACTINIAR!A 37 LEUCONIDAE 39 L. POLYPHEMUS 40 40 PLATYHE:LMINTHES 42 GASTROPODA 42 HAUSTOR!IDAE 42 80UGA lf1VILLIA SPP. 45 CIRPIPEOIA 45 P. CYPRIS 45 ELLlPTICUS 48 AMPHIPODA 48 ANNE:LlOA 48 w L
  • SAVIGNYl 48 DlPTERA 48 f-' D. LEUCOLEtlA 48 I CIROLANA 48 "" 1*, E 1*! A T 0 D A 48 w CAPRELLI DAE 48 co HrDROZOA 48 INSECTA 48 * -INDICATES REPORTABLE
  • * * * *
  • TABLE 3.1.8-5 CONTINUED NUMBER NUMBERS/100 CUBIC METERS PERCENT 1 2 0.178
  • 7 0.104
  • 7 0.104
  • 5 0.074
  • 4 0.059
  • 4 0.059
  • 3 0.044
  • 3 0.044
  • 3 0.044
  • 2 0.030
  • 2 0.030
  • 2 0.030
  • 1 0.015
  • 1 0.015
  • 1 0.015
  • 1 0.015
  • 1 . 0.015
  • 1 0.015 "' 1 0.015
  • 1 0.015
  • 1 0.015
  • 1 0. 01 5
  • 1 0.015
  • IA SALEM EN 1978 * * * * * -------------------------
  • * ---_J
  • w I-' I w * *
  • DATE 04/19178 -LOCATIO'I INTAKE COLLHTION T I'\E 1127 *A TE R l E >>lP. CCl 10.2 U l:L TA T cc) DISS. OXYGEN C 10G/Ll 8.8 SAL!tll TY IPPTI 5.5 VDLUMc FILTERED CM3) 1 3 .o TAX Oil SEX * * * * *
  • TABLE 3.1.8-6 BY DATE Ot INITIAL AND LATENT MEAN PERCENT SURVIVAL, NACROINVERTEARATE PLANKTON *1978 04/20178 LIFESTAGE KU: A ADULT J ; J UVHJ! LE 0510 M MEGALOPS 11
  • u z .. lDEA 9.7 8.0 ooun
  • 0200 LIFE TOTAL PERCENT PERCENT PERCENT TOTAL PERCENT P!:RCtrH STAGE l>UMilER LI VE S TUl<NED DEAD NUMBER LI VE STlH:Nt:D
  • PERCUIT DEAD POLYCHAUA A 11 1 Ull () 0 0 D 0 0 OLIGliCnAETA A 2 *100 0 0 0 0 0 u Hl RUD I r1U A 1 7 94 0 5 0 0 () (J N.

I CANA A 3210 71 4 24 0 0 0 0 c. POU l A A 1 1 uo 0 0 0 0 0 0 L. PLUHLILOSUS A 1 100 0 0 0 0 0 0 COi<UPh !UV. S?P. A 5 1 (10 0 0 0 0 0 0 GA :rnA RU S SPP. A 1n 87 9 3 0 0 [) 0 HALlSTOR I lilAE A 1 100 li 0 0 0 iJ (j )\. fOwAi<OSI A 0 83 () .16 0 0 0 0 P. PUG I 0 A 1 100 CJ 0 0 0 0 0 c. SE?TE'4SPINOSA A 1 5 66 26 6 0 0 () 0 R. HA8RISII J 1 1llli 0 0 0 0 0 O* 0400 08fi0 TA XOll SEX LIFE TOT AL PlRCHH PrnCENT PERCE"JT TOTAL PERCENT PERCENT STAGE NU*1l!Ek LI VE liTUtiNED De AD NUM8ER LIVE STUfl/;ED DEAO POUCH*t A & 1 (J() ll 0 5 100 0 0 A 0 () 0 0 2 100 0 Ll HI il U il I I; EA A 16 93 0 6 2 100 Ii 0 N. A/.!Ek!CANA A 2841 :59. 1 58 647 36 2 61 c. POLI I A A 1 100 () 0 0 ll 0 0 L. PLU:*l LJ L 0 SUS A 1 1 (JO u 0 1 100 0 0 CORDPH!J.*/ SP?. A 3 1UO 0 0 4 100 0 0 G k Li S SPP. A 7(J 91 1 7 101 97 0 1 HAU> Turd IilAE A 1 1 LJ(J 0 0 0 0 0 0 M. A .i 1 ()0 0 0 3 33 0 66 P. PIJu l D A 1 1 IJO 0 0 0 0 0 0 c. SEP TE 1SPINOSA A l 85 0 14 9 88 0 11 R. HARiilSll J 1 100 0 0 0 0 0 0 IA 1978

  • w I-' I ,J:>. ,J:>. 0 * *
  • TAX ON SEX LIFE STAGE TABLE 3.1.8-6 CONTINUED TOTAL PERCENT LI VE 1200 PERCENT STUNNED PERCENT DEAD -------------------------------------------------------------------------------------

POLVCHAETA A 11 100 0 0 OllGOCHAETA A 2 100 0 0 H 1RUD1 ti EA 4 1 7 94 0 5 N. AMERICAtiA A 3210 33 1 65 c. POLI TA A 1 100 0 D L. PLUMULOSUS A 1 100 0 0 COROPH 1 J**I SPP. A 5 100 0 0 GAMMAkUS A 122 91 2 5 HAUSTURIIDAE 1 100 0 0 M. EDWARDS! A 6 66 0 33 P. PUG IO A 1 100 0 0 c. SEPTEMSPINOSA A 1 5 86 0 13 R. HARRIS!! 1 100 0 0 IA SALEM EN 1978 * * * * * * * * *

  • w I-' I .z:,. .!>> I-' * * *
  • 0 A Ti: 04/19/78 -04/20/78 LOCA TlOI< DISCHARGE COLLE:CllON TI 1133 0516 ;;,qf:R Tt."IP. (CI 1Ll.9 11. 5 CQt1u. Df:L TA T (Cl DISS. OXYGEN (MG/L) 8.1 9.9 SAL!td TY <PP Tl 5.5 8.0 VOLUME FILTHED (i'\3) 13.0 T AXOI\ SEX LI f E STAGf:
  • TOTAL
  • TABLE 3.1.8*6 CON TI NU f: 0 0000 PrRCEl-IT PERCENT LI VE STIJM<ED
  • LlFf:S TAGE KEY: A J fl\ z PERCENT DEAD * *
  • ADULT JUVENILE " ZOEA 020li TOTAL PERCENT >'FRCEIH PU<C E tH NUMBE:R LI VE S IUl*<NED DE,; D POLY CHAE IA A 8 1 lJO 0 0 0 u 0 0 OLIGOCriAETA A 2 1 00 0 0 0 0 0 0 H!llUD!NEA A 11 1(10 0 I) 0 0 0 0 N.

ICA'<A A 4593 7U 5 24 933 63 0 36 CORUPn l SPP. A 7 71 0 28 0 0 0 0 COiWPH!J'I SPP. J 3 1 no 0 0 u 0 Cl 0 SPP. A 131 90 7 1 41 82 14 2 M .. l01.,'AKOSl A 7 85 0 14 1 100 0 0 c. SEPTE%PINOSA A 6 66 16 i6 0 0 0 0 c. 6 *100 0 0 0 0 0 (J 0400 0800 r A xor. SEX LIFE TOTAL PE1lCENT PERCE*<T PERCENT TOTAL PE:RCEt*T Pc PC Et, T SPGE LI vE S TUNl<EO DEAD NUi"8ER LI VE S TUIHlE D DEhO A 2 1 U(J 0 0 7 100 0 lJ OL!GOCrlAETA A 1 1ou 0 0 2 100 0 0 A 1 100 0 0 6 101) 0 0 M. AMEk!CANA A 1063 59 0 39 2699 40 0 58 l ll'l SPP. A 2 1uo 0 0 6 66 0 33 I U"1 SPP. J 0 () () 0 3 100 0 0 G M:*\ AR ll 5 SPP. A 54 83 1 2 3 125 5 4 "'* EOwARDSI A 2 50 0 50 7 85 0 14 c. SEPTE'.Si'INOSA A 1 100 0 0 3 66 0 35 c. J 0 0 0 0 6 100 0 0 IA S ALEf', 1978 *

  • w I-' I >!>> .r:. N * *
  • TAX ON SEX TABLE 3.1.8-6 CONTIIWED LI FE STAGE TOTAL NUMBER 1200 PrncrnT LI VE PERCENT STUNNED PERCENT DEAD ------------------------------------------------------------------------------------

POL YCHI* ET A 8 100 0 0 Qll(,QCHAE TA 2 100 0 0 HIRUDll*EA A 11 100 0 0 IJ. AMlHICA>jA A 4593 43 0 56 COROPHIU'l SPP. A 7 71 0 28 COROPH!U.., SPP. J 3 100 0 0 GAMMARUS SPP. A 1 31 90 ' 4 M. EDwARDS! A 7 85 0 14 c. SEPTE>ISPINOSA A 7 71 14 14 c. SEPTEMSPINOSA J 6 100 0 0 IA SALEM EN 1978 * * * * * * *

  • w f-' I w * * *
  • DHE 06128/78 -06/29/78 LOCATION COLLECTION TI 1548 U610 wATER TE *'IP. (cl 21.0 26.8 C0110. Cf:LI A T (Cl 3.8 6.1 DIS,;. 0 x Y GE r1 CMG/Ll 6.6 !1.4 SAU rd TY C PP Tl 4.0 6.0 VOlUMI:: flLTEREO (M3l 21.0 TAX ON SEX LIFE STAGE
  • TOTAL NUMB CR *
  • TABLE 3.1.8-6 CONTINUED 0000 PERCENT PERCENT LI VE STUNNED
  • LifESTAGE KE:Y: A J M z PERCENT DEAD * * *
  • ADULT JIJVENILE MEGALOPS ZOEA ()200 TOTAL PERCENT PERCENT PERCE:.r NUMBER LI VE ST F. D GASJR{JPODA J 1 1 lJO () 0 1 100 0 0 11 U D I b 1' 'IC I'/ I A A 18 1lill 0 0 1 7 100 0 0 ARGULUS SPP. J 1 100 0 0 1 100 0 0 J 7522 81 0 17 5448 79 0 1 9 L. AMERICAl<US " 9 88 0 11 4 100 0 () c. AL.'iYRA J 9 88 0 11 4 100 0 0 E. TldLOaA J 77 94 1 3 46 89 2 8 c. POLI n J 8 87 0 1 2 8 87 0 12 A. flE:OUL!S J 1 0 u 1 00 1 0 u 1GO COiiOPN I J'*l SPP. J 2il 92 0 7 11, 85 0 14 GA/-:;*:.:.iiuS SPP. A 11 5 73 1" 9 0 0 0 .o GA.MMAXUS SPP. 751 88 2 8 678 87 2 9 M. E:GWARDS!

5 100 0 0 0 0 0 0 P. PUG I u J 6 83 16 0 6 83 16 0 c. J 14!i 29 3 67 96 13 0 b6 R. riAilRISII J 1 0 0 1 OD 0 0 0 0 R. z 516 98 1 0 456 98 1 0 u. Mlt<AX z 14 92 7 0 13 92 7 0 IA SAL.EM EN 1978

  • w f-J I .!:>-.J::>. .J::>.
  • l A xor" SEX LI FE STAGE TOTAL NUMBER TABLE 3.1.8-6 CONTINUED 0400 PERCENT LI VE PERCENT SlUNIJED PERCE'JT DEAD TOTAL 0800 PERCErlT LI VE PERCENT STUNNED PERCENT DEAD --------*----------v**--**-****---------------------*****------------*-******-**-***---*********-*-********************************

G'S J 0 0 n 0 2 1 DO 0 0 A 6 1 OU () 0 29 100 0 0 ARGULIJS SPP. 0 u n 0 2 100 0 0 ti. 3281 75 0 23 9769 76 2 21 L. A'*ibl ICA*JUS A 6 83 0 16 11 90 0 9 c. AL '-1 '(RA J 5 BU 0 20 10 90 0 10 E'. lfill03A 31 96 0 3 99 86 2 11 c. POLI TA 2 100 0 0 9 88 0 11 A. I ALIS 0 0 0 0 1 n 0 100 COROPHl>H SPP. 19 89 0 10 33 90 0 9 A J<iJ 5 SPP. A 11 5 71 16 12 115 71 16 1 2 SPP. J 22U 98 0 1 1018 88 2 8 H. EC"Ai<DSI J 5 100 0 0 5 100 0 0 ?. PUG JO J 0 0 0 0 11 81 18 0 c. SEl'TE.*iSPJNOSA 55 54 1 43 164 26 0 73 Q. H l,R R 1511 J 1 0 0 100 1 0 0 100 f<. HA!<R!S!I z 85 1UO 0 0 673 97 1 0 u. i*l x z 1 100 0 0 27 92 7 0 1200 l A XO'I SEX LI FE TOTAL PERCENT PERCENT PERCENT STAGE NUM!HR LI VE STUNNED DEAD --------------------------------------------------------------------------------------* GAS TiluPuOA 1 100 n 0 l ti R * *'< C 1 A A 18 1UO 0 0 Ai<GULUS SPP. J 1 100 0 0 fj. WI C A J 7547 71 2 25 L

  • A\":t: q l C 41*tUS A Q 77 0 22 c. Al l*i f RA J 9 77 0 22 E. TR!L03A J 77 88 1 10 c. Pu l 11 A J 8 87 0 1 2 A. ,.,.,lg us J 1 0 0 100 l u*., SPP. J 28 85 0 14 (,AM*'*,:.

tf US SP?. A 11 5 62 24 13 SPP. J 749 87 2 9 M. J 5 100 0 0 P. J 6 83 16 0 c. StPTESPINOSA '148 27 0 72 R. Hldi1<1Sll 1 0 0 100 R. HARRIS!! z 516 98 1 0 u. M It* AX z 14 92 7 D IA SALE"1 EN 19 78 * * * * * * * * * *

  • w f-' I ""' ""' U1 * * *
  • DA TE 06128178 -06/29/78 LOCATION DISCHAkGE COLLECTIO'I Tl '1 E 1552 Oo14 wA TER T E:;,p. (cl 29.0 30.2 CONO. DELI A T (Cl 3.8 6.1 DISS. OXYGEN (MG I Ll 5.1 7.1 SALHd TY ( PPTl 4.5 6.0 VOLUr'E f IL TEliED <M3l 21.0 TA;(Qt* SEX LIFE STAGE
  • TOTAL NUMBER *
  • TABLE 3.1.8-6 CONTINUED 0000 PERCEfH PERCENT LIVE !;TUfWED
  • LlfESTAGE KEY: PERCENT DEAD * *
  • A ADULT J JUVENILE M z ZOEA 0200 TOTAL PERCENT PERCENT PERC El< T NUMBER LI VE STUf;NED DEAD POU CHAE TA A 1 1 ()0 0 0 1 1DO D 0 OllGOChHTA A 3 1 DO 0 D 1 100 D 0 NUDliiilA'J(H!A A 13 1 DO 0 0 7 1 00 0 0 N. A;;o lCANA J 7529 95 0 3 2358 90 1 8 L. AieE:PI CAt;US A 1 4 1CJ0 0 0 2 1DO Q 0 c.

A 1 1llll 0 D 1 1DD 0 u c. ALr'IRA J 2 1llll 0 0 D 0 0 0 E. TklLCi3A J 2l 100 () 0 4 100 0 0 c. POLI I A J 7 100 [J 0 6 100 0 G COROPH l LJ'I SPP. J HJ 90 0 10 5 i:!O D 20 GAMHARUS SPP. J 744 86 1 2 0 123 95 4 D P. PlH.l 0 J 1U 100 0 0 7 100 0 0 c. SEPT SP I *IDS A J 46 73 4 21 3 33 0 60 R. H;\RRISlI l 331 96 2 1 99 94 3 2 u. M z 4 75 25 0 2 100 0 0 01,(JO 0800 !AXON SEX LI FE TOTAL PERCENT \ PERCENT PERCENT TOTAL PtRCEtH PfilCE!IT PE. k CE t<T STAGE NUMB ER LI VE STUNNED DEAD NllMBE}l LI VE S Tl.J';IJE D DEAD POLICH.\ETA A 0 ll u 0 1 100 u 0 GL!GuCh<ETA A '* 100 0 0 4 100 0 D rw D I b ;< ! .'; c >i I A A 5 100 0 0 14 100 0 0 ,, . J 6111 iie 0 10 5496 85 1 1 2 L. A 12 100 0 0 8 100 0 0 c. AUIY'A A 0 0 0 0 2 0 i DO 0 c. ALh i >l A J 2 100 () 0 2 1 00 0 0 E. TRILOaA J 17 100 0 0 13 1 [JQ 0 0 c. POL! TA J 1 1 OD 0 0 11 100 0 0 SPP. 7 85 u 14 1tl 90 0 10 GA,V,MARuS SPP. 683 92 6 0 586 97 1 0 P. PUG IO 3 100 (J 0 14 100 0 0 c. J 27 66 0 33 14 35 () b4 R. z 247 96 1 2 379 95 2 2 u. z 2 50 50 0 6 83 i6 0 IA SA LEM EN 197b *

  • w f-' I ""' ""' °' * *
  • TA XOI* SEX TABLE CONTINUED LI FE STAGE lOTAL NU"IB R 1200 PERCENT LI VE PERCENT S TUNIJED PERCENT DEAD ------------------------------------------------------------------------------------

POLYCHAETA 2 0 100 lJ OLIGOCHAETA 3 100 0 0 'IUDlbRA'iCHIA A 16 100 0 0 II. A,.; ER l CA 11 A J 6893 84 1 1 3 L. AHcR I CA NUS A 10 100 0 0 c. ALi*IYRA A 1 0 100 0 c. AL MY il A J 2 100 0 0 E. TRILOBA J 21 100 0 0 c. POLIT A J 9 100 0 0 SPP. J 11 90 0 9 GAMMARUS SPP. J 7U7 89 9 1 P. PUGIO J 13 84 0 15 c. J .30 56 0 43 R. HARRlSII z 371 95 2 1 ll. MINAX z 4 75 25 0 IA SALEM EN 1978 * * * * * * * *

  • w I-' I """ """ -.J * * *
  • DAT£ 09113178 -09/13/78 LOCAT IOIJ INT HE COLLf:CTIOfl Tl'IE 1015 2200 T01P. (() 22.2 23.5 COtiO. DELTA T (C) 8.0 9.9 DISS. OXYGEN Cl-lG/Ll 6.4 7.8 SALIN! TY ( PPTl 6.0 9.0 FILTERED CM3l 20.0 TAX Oil SEX LT FE STAGE
  • TOTAL NUi-IBER
  • TABLE 3.1.8-6 CONTINUED OUOll PERCENT PERCENT LI VE S ED
  • Ll FES TAGE KEY: A J M z PERCENT DEAD * * * * = AD LILT JUVH'1LE " ZOEA 0200 TOTAL PERCENT PERCENT Pf: RC ENT NUMBER LI VE STUNNED DEAD (MEDUSAU I. 26 Bll 0 19 20 45 0 5S SPP. A 6 1 Oll 0 D 0 0 0 [J ll. VIRGINICA A 39 5 SS 1 2 0 B POLHHAETA A 2 100 0 0 0 0 0 0 -A<-iti<IC*llA A 14.334 99 0 0 7739 96 0 3 ".

J 17So 98 0 1 1 756 94 1 3 L. A 43 100 0 0 11 100 0 0 E. A 18 94 Li 5 0 0 0 u E. J 116 99 0 D 52 98 0 1 A. J 8 100 Ci 0 4 SD 50 0 SPP. A 3 33 0 66 0 0 0 (J COtlOPrilLl'l SPP. J 33 1 OU 0 0 1 5 100 0 0 GA i*l>IA RU S SPP. A 20 1 LIU 0 0 0 0 0 0 SP?. J 144 97 0 2 85 97 0 2 M .. t:OwAROSI A 4 1UO 0 0 0 0 0 0 ;.\. J 3 100 0 0 3 100 0 {) P. PuGIO J 2 1 OU 0 0 2 100 0 0 c. Sl:P l E % P lllOSA J 13 1 00 {) 0 3 100 0 0 c. HP I DUS J 1 1 Q(J 0 0 1 100 0 0 c. Sr.Pl DUS M 2 1uu ll 0 1 100 0 0 R. M 2 100 I) 0 2 100 0 (j fl. HARfllSII z 38 97 0 2 25 100 \) 0 IA SALEM EN 1978

  • TABLE 3.1.B-6 COi<TlNlJED 0400 0800 TAX Oil SEX LI FE TOTAL PERCE: NT PERCEllT PERCENT TOTAL PERCrnT PERCENT PERCENT STAGE NUMB ER LI VE STUt<NED DEAD NUMBER LI VE STUNNED 'HAD -----------------------------------------------------------------------------------------------------------------------------------

(:'1CDUSAE) 20 40 o 60 10 60 0 40 PHJAL!DliJ'I SPP. A 4 100 0 o 1 100 0 0 a. ,. A 32 15 6 78 9 22 0 77 A 2 100 0 0 0 0 o 0 "* A.'* t >< I CA;, A A 20031 95 () 4 465 97 o 2 . J 0 o 0 0 1756 94 0 5 L. A:. l: ,.( l C H.1 S A 31 93 o 6 9 100 0 0 E. hll03A A 18 94 0 5 0 0 0 0 E

  • Tf.il'J::P 71 97 0 2 40 100 0 o ". :*ED!f*L!

5 7 85 14 0 2 50 0 50 COriOPnl.r* $PP. A 3 33 0 66 0 0 0 0 co,uP*1Ju>r SPP. J 12 100 0 0 1 5 100 0 0 w GA:*i:ti:.RuS SPP. A 20 100 0 0 0 0 0 a ....... ... i."!AHUS SPP. J 55 92 u 7 78 98 0 1 I ED*A'lDSJ 4 100 0 0 0 0 0 0 .i::. ;..:_ 2 100 ll 0 1 100 0 0 of:>. P. PUG!J 1 100 0 0 1 100 0 0 00 c. 13 100 0 0 1 100 0 0 c. SAFI DUS J 1 100 0 o 0 0 0 0 c. SAPliJLIS M 1 100 0 o 1 100 0 0 R. HAP.R!Sll M 2 100 0 o 0 0 0 0 R. HAf<RISII z 20 95 o 5 18 100 0 0 IA SALEM EN 1978 * * * * * * * * * * * * *

  • *
  • w I-' I l.O *
  • TAXON SEX * *
  • TABLE 3.1.8-6 CONTINUED LIFE ST AliE TOTAL NUMBER
  • PERCENT LI VE 120U PERCENT STUNNED
  • PERCENT DEAD HYDRuZuA CMEOUSAEl A 32 62 0 37 PHIALIDIUM SPP. A 8 1(1U 0 0 B. VJRGINICA A 40 20 2 77 POL YCnAET A A 2 100 u 0 N. Ai*H:kICANA A 11. 9i'1 92 u 7 N. Ai*tE:kJCANA J 1 o 94 0 5 L. MIER J CA NUS A 39 92 0 7 E.

A 1 d 88 0 11 E:. TR!LOBA J 99 0 0 A. MED!ALIS J 1 (J 90 0 10 COROPlt I UM SPP. A 3 0 0 1 DO COROPH l UM SPP. J 27 1 IJO 0 0 GAMe;ARUS SPP. A 0 u 0 0 GAMMARuS SPP. J 155 96 0 3 M. ED,;AkOS! A 4 1 un 0 0 M. EO.,AllDSl J 3 1 liO 0 0 P. FUGIO 2 100 0 0 c. SEPTE 0%PlNOSA J 13 100 0 0 c. SAP!DUS J 1 100 0 0 c. SAPlDUS M 2 50 0 50 R. flARUlSII M 2 100 0 0 R. HARW!Sll z 31 93 0 6 IA SALEM EN 1978 * * *

  • J w f-' I .!>> Ul 0
  • TABLE 3.1.8-6 CON fINUE:O -------Q------a-**-------------------------------------------------------------------------------*******-**-*******-****-****-**-**

DA TE 09/13/78 -09/14178 LIFESTAGE KEY: A ADULT LO CAT I 0 'i DISCHARGE J = JUVENILE C 0 Li. EC T l 0 ,., i l lti E 1 631 0514 M LOPS Hh T K TC: ."iP. ( c ) 29.1 31. 7 z ZOEA C Uf; 0 -DEL T *\ T ( c) 7.5 11.4 DISS. Gt: fl (MG/Ll 5.5 6.9 SAL!il!TY (PPT) 8.0 8.0 VOLU*':E FILTERED <'*13) 17.0 0000 0200 T J\ X OtJ SEX LI FE TOTAL PERCENT PERCENT PERCrnT TOTAL PERCENT PERCENT PER C EtlT STAGE NUM8ER LJ VE STUt.!NED DEAD NUMBER LI VE STUNNED DEAD ----------------------------------------------------------------------------------------------------------------------------------- Hr 0 .tf u Z 1j A Ci*' E OUSA U 27 74 0 25 9 77 0 22 14 .. 6*lNE! A 1 100 0 0 1 100 0 0 SPP. A 1 100 0 0 1 100 0 0 s. A 38 76 0 23 4 50 0 50 POL YCt<AET .\ A 1 100 0 0 0 0 0 0 *JUD I 8 *i CH l A A 1 100 0 0 0 0 0 0 11;.: A 1 1 OU 0 a 0 0 o* 0 H ... A"t:R lC.\.'i.\ A 2130 83 0 16 0 0 0 0 : . t.. *,... t fol 1 CA *t/.. J 3249 96 0 3 2229 87 0 11 L. ,.-i:R IC 4 >;US A 58 98 0 1 6 100 0 (J L. t\.\!CH lC i\NU& 10 100 0 D 10 100 0 0 E. J 295 99 0 D 68 100 0 0 c. POLI TA J 2 1 OD 0 0 2 100 0 0 ... "'ED I H l 5 J 2 100 0 0 1 100 0 0 COROOH lU'1 SPP. J 24 100 0 0 12 100 0 0 GA.1*Hv,; SPP. J 140 99 0 0 66 98 0 1 ,* I, IT l DA J 2 100 0 0 2 100 0 0 :1. A 2 100 0 0 0 0 0 0 M. ... J 7 100 0 0 0 0 0 0 P. P!IG I J J 4 50 0 50 1 0 0 100 c. SEP I E'*:SP!NOSA J 14 50 0 50 4 25 0 75 c. SAPlOtJ5 1 1 OU 0 0 0 0 0 0 c. M 1 H>O 0 0 0 0 0 0 q_ HARRIS!! '1 4 100 0 0 2 100 0 0 R. HARk!Sl! z 65 100 0 0 9 100 0 0 IA SALEM EP< 1978 * * * * * * * * * * * *

  • * * * * * * * * * * *
  • TABLE 3.1.8-6 CONl lNUEO 0400 TAX ON SEX LI FE TOTAL PERCENT PERCENT PERCENT TOTAL PERCENT PERCE*JT PERCENT STAGE t R LI VE STUNNED DEAD NUM8ER LI Vf. STUIH-iED DHD '

HYDrnZuA (MEDlJSAEl A 1 5 73 u 26 5 40 0 Ou N. bACrlEI A 1 100 u 0 0 D 0 0 P.JIALlD!LIM SPP. A 0 0 0 0 (j [J () 0 g_ v IR(, IN l CA A 7 85 *u 14 3 33 0 00 POLY CHAE TA A (J u 0 0 0 0 0 () A 0 u u 0 0 0 u 0 ACARll*A A 0 0 u 0 0 0 I) 0 N. A 814 53 u 46 13i 6 88 u 11 N. A:*/ t I< IC A II A J 1659 64 ll 35 O* 0 0 0 L. .:.r1t:;< I CA ta.IS A 1 5 93 0 6 19 94 0 s w L. Alo\!: k lC A NUS J 10 1UU 0 0 0 (j 0 () E. TrlllJ3A J 76 9ll 0 1 64 100 0 0 I-' c. POUT A J 0 0 0 0 0 0 0 u I A* J 1 1ou 0 0 0 0 0 0 "'" COkOPH I J*"I SP>'. J 8 1 IJO 0 D 3 100 0 0 lJl SPP. J 79 100 0 0 0 0 0 0 I-' f1. 11 I Tl DA J 0 0 0 0 0 0 0 [j 1'i. EOwARCSI A 0 0 0 0 2 100 0 0 M. J 0 0 (} 0 0 0 0 0 P. PUulO J 1 0 0 100 0 0 0 0 c. S!:Pf£'1SPINOSA J 1 0 0 100 4 75 0 25 c. SAPIOUS J 0 0 0 0 1 1 Oll 0 0 c. SAPIDUS M 0 0 0 0 0 0 0 0 R. HARHISII M 2 100 0 0 1 100 0 G R. HAHRISII z 9 1 OlJ 0 0 0 D 0 0 *I A SALEH Et, 19 78 TABLE 3.1.8-6 CONTINUED 1200 TAX ON SEX L 1F E TOTAL PERCENT PERCENT PERCENT Sl AGE NUMBER LI VE STUNNED DEAD HYDilUZOA (MEDUSA El A 34 61 0 38 N. BACHE! A 1 100 0 0 SPP. A 1 1 OU 0 0 B. VI RGI *HCA A 60 50 0 50 POLHHAETA A 2 100 0 0 IWD I !:IRA I A A 2 100 0 0 ACARJ!<A A 2 100 0 0 N. AMl:RICAIJA A 21.30 74 0 25 N. AMERICANA J 4269 51 0 48 L. A fol ERIC A 'I lJ S A 76 94 0 5 L. J 10 100 0 0 E. J 415 9{ 0 2 c. POLI I A J 2 100 0 0 w A. MEOPLIS J 3 100 0 0 SPP. J 31 100 0 0 I-' GAMMARUS .SPP. J 188 98 0 1 I M. NIT !OA J 2 100 0 0 M. ED..JAROSl A 2 100 0 0 U1 M. E:DwAROSl J 14 78 0 21 N P. PUGlO J 7 0 0 1 OD c. SEPTE%PINOSA J 19 42 0 57 c. SAP!DUS J 1 100 0 0 c. SAP I DUS M 2 100 0 0 R. HARKlSll M 5 100 0 0 R. HARRlSll z 119 100 0 0 IA SALEM EN 1978 * * * * * * * * * * * * *

  • * *
  • w f-' I lJl w * * * * *
  • TABLE 3.1.8-7 RANK, TOTAL NUMBER, ANNUAL MEAN DE:NSITY AND PERCENI TOTAL CATCH OF ICHTHVOPLANKTON

-1978. OAlE r.o. OF SAMPLES WATEk TEMPERATURE (Cl DISSOLVED OXYGEN CMG/Ll PH SALltdlY CPPTl PUMPS OPERATING 01/01/78-12/31/78 135 U.6-28.7 5.1-14.2 6.4-7.o 1.0-1 ,.o 1-6 TOTAL VOLUME FILTERED (M3l 7203.4 RANK NUMBER TOTAL EGGS 175 4 9 TOTAL LAilVAE 10437 TOHL YOUNG 1877 TOTAL ADULT 121 E:GGS: A. Ml !CHILL! 1 17520 UNIO. F! SH 2 18 SPP. 3 6 T. MACULATUS 4 2 1'i. 4 2 c. REGALIS 6 1 LARVAE:: A. Ml !CHILLI 1 G. BOSC! 2 1085 c. RE:GAL!S 3 660 M EM BR A 5 IM f Ill 0 I A SPP. 4 448 T

  • 1'1ACULATUS 5 73 M. UtjOlJLATUS 6 7 s. FUSCUS 7 3 Afl,'1001TES SP. 7 .3 F
  • HEIERUCLITUS 9 2 L. XHIT rlURUS 10 1 s. MARINA 10 1 BOTH I DAE 10 1 fl SH 10 1 YOUNG: A. Ml TCfHLLl 1 1272 c. REGALIS 2 435 . -H*DlCATES BELOW REPORTABLE METER PE:RCENT 2.436 ,8.5 1*. 449 34.8 U.261 o.3 0.017 0.4 99.8 U.ll02 0.1 0.001 * * * * * ..
  • 1 .132 78.1 0 .1 51 10. 4 0.092 "6.3 0.062 4.3 0.010 0.7 O.Oll1 0.1 * " " * " * * * " * * *
  • 0 .1 77 67.8 U.06U 23.2 IA SALEM * *
  • Efl 1978 RANK YOUNG: s. FUSCUS 3 G. BO SCI 4 M. i*l Ehl DI A 5 A. ROST RA TA 5 T. MACULATUS 7 A. AESTIVALIS 7 MART lid CA 9 L
  • XANTHURUS 9 f
  • HEaROCLITUS 11 P. TR I ACANTHUS 11 M. UN DULA TUS 11 w ADULT: A. TCHILLI 1 I-' M. MEN!DIA 2 I s. FUSCUS 3 ""' lJ1 l. MACLJLATUS 3 ,JO,. A. ROST RA TA 3 * -INDICATES.

BELOW REPORTABLE

  • * * * *
  • TABLE 3.1.8-7 CONTir-JUED NUMBER NUMBERS/CUBIC METER 57 U.008 34 0.005 30 U.004 30 U.004 5 U.001 5 0.001 3
  • 3
  • 1
  • 1
  • 1
  • 111 0.015 4 0.001 2
  • 2
  • 2 * * *
  • PERCENT 3.0 1.8 1 .6 1.6 0.3 0.3 0.2 (j. 2 0 .1 0 .1 0 .1 91.7 3.3 1.7 1.7 1.7 IA SALEM EN 1978 * * * * *
  • w ...... I """ U1 Ln * * * * * * * *
  • TARLE .3.1.8-8 MEAN DENSITY METER), BY DATE, OF ICHTHYOPLANKTON

-1978. DA 1E NO. Of SAMPLES WATER TEMPERATURE (C) DISSOLVED OXYGEN (Mu/L) PH SALINITY (PPT> PUMPS OPERA Tl NG 02/27178-02/28178 5 1.1-2.0 12.9-13.7 6.4-6.8 5aU-9.ll 5-6 TOTAL VOLUME FILTERED (M3) 246.2 + 95% METER CONFIDENCE LIMIT TOTAL EuGS TOTAL LARVAE TOlAL YOUNG TOTAL ADULT EGGS: LARVAE: YOUNG: A. ROSTRATA ADULT: * -INDICATES BELOW REPORTABLE 0.008 0.008 0.014 IA SALEM EN 1978

  • w
  • TA8LE 3.1.8-8 CONTINUED

--*--------------------------*--------------------------------------------------------------------------- DATE. NO. OF SAMPLES WATER TEMPERATURE CC) DISSOLVED OXYGEN CMG/L) PH SALINITY CPPTl PUt*lPS OPERA TING 03/02/78-03/03/78 12 0.6-2.1 12.1-14 .. 2 7.0 3.0-6.0 6 TOTAL VOLUME FILTERED (M3) 600.0 + 95% METER CONFIDENCE LIMIT

  • TOTAL EGGS TOTAL LARVAE T 0 T A L Y 0 U fl G TOTAL ADULT EGGS: LARVAE: UNIDENTIFIABLE FISH AMMOOYTES SP. YOUNG: A. ROSTRATA ADULT: * -INDICATES BELOw REPORTABLE
  • * * *
  • 0.005 0.025 0.002 0.003 0.025 *
  • 0.006 0.014 0.004 0.005 0.014 IA SALEM EN 1978 * * *
  • w I-' I ""' lJl -..J * *
  • e *
  • TABLE 1.1.d-d CONTI!\llJED
  • * *
  • e DATE NO. OF SAMPLES WATER TEMPEkATURE CC> DISSOLVED (MG/L) PH SALINITY <PPT> PUMPS OPERATING 03/16/78-03/17178 8 2.5-3.6 7.2-7.3 1a0-4.Q 2-4 TOTAL VOLUME FILTERED <M3) 400.0 + 95% NUMBERS/CUBIC METER CONFIDENCE LIMIT TOTAL EGGS TOTAL LARVAE TOTAL YOUNG TOTAL ADULT 0.013 0 .. 012 EGGS: LARVAE: YOUNG: A. ROSTRATA 0.012 ADULT: * -INDICATES BELOW REPORTABLE IA SALEM EN 1978 *
  • w I-' I """ lJl co TABLE 3.1.8-8 CONTINUE:D

DA TE N 0

  • 0 F S A P L E S TEMPERATURE (C) DISSOLVED OXYGEN CMG/L) PH SALINITY (PPT) PUf'lPS OPERATING 04/19/78-04/20/78 9 10.2-11.n 8.8-11.0 7.0-7.6 5.5-8.0 1 TOTAL VOLUME FILTERED ( 1'13) 315.0 + 95% NUMBERS/CUBIC METER CONFIDENCE LIMIT
  • TOTAL EGGS TOTAL LARVAE TOTAL YOUNG TOT AL ADULT EGGS: UNID. FISH M. SAXATILIS LARVAE: AMMODYTES SP. YOUNG: AD ROSTRATA ADULT: A. ROSTRATA * -INDICATES BELOW REPORTABLE:
  • * *
  • 0.063 0.003 0.019 0.003 0.057 0.006 0.003 0.019 0.003 *
  • 0.038 0.007 0.015 0.007 0.041 0.015 0.007 0.015 0.007 IA
  • SALEM EN 1978 * *
  • w f-J I '"" U1 l.O * * *
  • DA TE NO. OF SAMPLES WATER TEMPERATURE (C) DISSOLVED OXYGEN (MG/L) PH SALIN! TY (PPT> PUMPS OPERATING
  • 06/28/78-06/29/78 9 21.0-26.8 6.6-6.4-7.1 4.0-6.0 6 TOTAL VOLUME FILTERED (M3) 45U.O
  • TABLE 3.1.8-8 CONTINUED
  • * * + NUMBERS/CUHIC METER CONFIDENCE LIMIT *
  • TOTAL EGGS TOTAL LARVAE T 0 T A L Y 0 U G TOTAL ADULT E: GGS: A. MllCHlLLI LARVAE:: A. MITCHILLI MEMBRAS/MENIDIA SPP. C. HGALIS L. XANTHURUS G. BOSCl T.

YOUNG: A. MITCHILLI M. MF.NIDIA s. fuse.us C. REGALIS L. XANTHURUS ADULT: A. Ml.JCt1lLLI T. MACLILA TUS * -INDICATES BELOW REPORTA8LE 1

  • 162 3. 1 31 O.o6U D.02U 1
  • 162 2.104 0. lJ".B 0. 6"1 .5 ll.DU2 u * .564 u.on [J. 0112 *0.002 D. [) 1 .5 0.636 O.Dll7 0.745 2 * .5 ll 9 0.532 U.017 0.745 2. 2 27 0. Cl 4 3 o. _s9a 0.\105 (}. 2 05 0.015 0. IJiJS 0.005 0.015 0. 513 0.011 O.U16 D.005 IA SALEM EN 1978 *

,--------- w f--' I >f::>. (j\ 0 * * *

  • DA TE f10. OF SAMPLES TEMPERATURE CC) DISSOLVED OXYGEN CMG/L) PY PLINITY (PPT) FUMPS OPERATING 07/12/78-07/13/78 1 2 24.0-25.0 6.2-8.o 99.9-5.0-10.0 5-6 TOTAL VOLUME FILTERED <M3l 625.2 TOTAL EGGS TOTAL LARVAE TOTAL YOUNG TOTAL ADULT EGGS: A* MI I CH*! LLI 0'8R AS I ;\E:N ID 1 A SPP. c:

T. MACULATUS LARVAE: A. l"ITCHILU F. HETEROCLITUS r'*EMBRAS/MENlDIA SPP. c. RE(,ALIS G. BOSCl T. MACULATUS YOUNG: A. MI !CHILLI F

  • HE TE ROCLI TUS M. MART IIHCA M .. MENIDIA s. Fuse us c. REGA LIS G. BOSCI ADULT: A. ROSTRATA A. Ml TCHILLI I'. MENlDIA * -INDICATES BE:LOW REPORTABLE
  • TAIJLE. 3.1.8*8 CONTINUED

+ 95X NUMBERS/CUBIC METER CONFIDENCE LIMIT 24.936 17.855 7.385 2.368 0.264 0.195 0.043 0.027 24.924 17. 642 0.007 o.ooa U.002 O.OD4 O.llU3 0.007 6.146 2.119 0.002 0.004 0 0.029 0.587 0.267 0.574 0.233 0.043 0.031 0.032 0.026 0.002 O.OU4 O.Oll2 0.004 0.003 0.007 0.007 0.008 0.209 0.197 0.010 0.015 0.002 0.004 0.038 0.026 0.003 0.004 IA SALEM EN 1978 * * * * * * *

  • w I-' I of:> °' i-' * * * * * * * * * * -TA8LE 3.1.8-R CUiHINUED DATE NO. OF SAMPLES TEMPERATURE (C) DISSOLVED OXYGEN (MG/L) PH SALINITY CPPT> PUMPS OPERATING 07127/78-07/28/78 12 26 * .5-27.4 5.4-6.7 6.9-1.4 6.0-8.0 5 TOTAL VOLUME FILTERED CM3) 60U.O t 95% NUMBERS/CUBIC METER CONFIDENCE LH'ilT TOTAL EGGS TOTAL LARVAE TOTAL 'rOUNG TOTAL ADULT EGGS: A. MITCHILLI MEMSRAS/MENIDIA SPP. LARVAE: A. MITCHILLI
s. MARINA MB R AS I N EN I D I A SPP. c. REGA LIS G. BOSCl T
  • MACLJLATUS YOUNG: A. MITCHILLI M. MENIDIA s. FUSCUS c. REGALIS G. SOSCI ADULT: A. MITCHILLI
  • INDICATES BELOW REPORTABLE 0.157 4.913 0.190 0.012 0.153 0.003 4.197 0.002 D.198 0. 022 0.528 o. 027 0.172 O.l107 OM007 0.005 0.002 0"012 0.134 1.95'* O.U98 o. 010 0.135 o.oos 1.792 0.004 0."132 0.01d 0.238 0.020 0.097 O.ll06 0.006 0.005 0.004 0.010 IA SALEM EN 1978
  • I *W I-' I .JO>. O'I N
  • DATE 08/10/78-08/11/78 NO. OF SAMPLtS 12 WATER TEMPERATURE CCJ 26.7-28.7 DISSOLVED OXYGEN (MG/L) 6.U-9.8 PH 7.2-7.4 SALINITY CPPTJ 6.0 OPERATING 4-5 TOTAL VOLUME FILTERED CM3) 600.0 TABLE 3.1.8-8 CONTINUED NUMBERS/CUBIC METER + 95% CONFIDENCE LIMIT TOTAL E:GGS 3. 0 3 7 4.297 TOTAL LARVAE 1.9l8 1.068 TOTAL, YOUNG 0 .1 70 0.083 TOTAL ADULT 0.035 0.038 EGGS: *A* MITCHILLI 3.037 4.297 LAP.VAt: A. MIT CHILLI 1. ll8tJ 0.485 F
  • HEHRtlCLITUS

[). l.)02 O.OtJ4 1'1EMBRAS/MENlDlA SPP. 0.470 0.769 s. o.unz 0.004 c. RE.6ALIS (). 02.) 0.025 G. BOSCI 0.3o5 lJ .1 58 T. l*:ACULATUS U.037 D.034 YOUN(,: A* MITCH ILL! u .132 0.052 M. MARTINICA

0. UlJ2 0.004 "'. MEN!D!A 0.025 0.033 s. FUSCUS 0.002 0.004 c. REGALIS 0.010 0.009 ADULl: A*

0.032 0.037 M. MEN!DIA 0.002 0.004 s. FlJSCUS 0.002 0.004

  • q HlDlCATES BELOW REPORTABLE:

IA SALEM EN 1978 e * * * * * * * * * * *

  • w ------------------* * * ** * *
  • TABLE 3-1-8-8 CONTINUED
  • *
  • DA TE NO. OF wATEW TEMPERATURE CC) DISSOLVED OXYGEN (MG/L) PH SALINITY CPPT> PUMPS OPERATING 08/31/78-09/U1/78 1 2 26.5-27.U 5.1-6.2 7.0-7.3 6.0-8.0 TOTAL VOLUME FILTERED CM3) 5-o 725.0 + 95'X NUMBERS/CUBIC METER CONFIDENCE LIMIT TOTAL EGGS TOT AL LARVAE TOTAL YOUNG TOTAL ADULT EGGS: LARVAE: A. MITCHILLI MEMBRAS/MENIDIA SPP. S. FUSCUS M. UNOULATUS G. BOSCI YOUNG: A. MITCHILLI M_

S. FUSCUS C. REGALlS G. BOSCI P. TRIACANTHUS T. MACULATUS ADULT: A. 1"1l 1CHILLl M. ME:NlDIA S. FUSCUS *

  • INDICATES BELOw REPORTABLE o _ 385 1
  • 1 91 D-0Ll4 0. 34 3 0. O"l 8 0.002 0.007 0.016 ,_ 12 7 0_002 0.010 0.006 [J.043 0. [)02 0.002 o_on2 0.001 O.J01 0.148 1. 087 0.006 0.149 0.016 D.UU4 0.011 u. 01 2 1. 04 5 0.004 0 .013 0.008 D.040 0.004 0.004 D.004 0.()02 0.002 IA EN 1978 * * *
  • w I-' I .!>> °' '""'
  • TABLE .3.1 .8-8 CONTINUED
  • DA TE NO. OF SAMPLES wATE:R TEMPERATURE (C) DISSOLVED OXYGEN (MG/L) PH SALINITY CPPT) PU S 0 P E: fl A T I NG 09/13/78-09/14/78 1 2 21.2-23.9 6.3-7.9 6.6-7e4 6.0-9.0 5-6 TOTAL VOLUME FILTERED CM3J 60U.O TOTAL EGGS TOTAL LARVAE TOTAL YOUNG TOTAL II DULT EGGS: LARVAE: A. MITCH ILL! s. FUSCUS M. UNDlJLATUS G
  • BOS CI T. MlltULA TUS YOUNG: A. MITCHILLI M. MARTINICA 1'1.

DIA s. FUSCUS c. REGALIS M. UNDULATUS T. MACULATUS ADULT: A. MITCHILLI

  • -INDICATES REPORTABLE
  • * * + 95% NUMBERS/CUBIC METER CONFIDENCE LIMIT U.055 0.034 U.492 0.359 0.085 0.065 0.042 0.033 0.002 0.004 0.003 0.005 0.003 0.005 0.005 0.006 0.438 0.340 0.002 0.004 0.002 0.004 0.040 D.027 0.007 0.015 0.002 0.004 0.002 0.004 0.085 0.065 IA SALEM EN 1978 * * * * * * *
  • w * * * * * *
  • TABLE 3.1.8-8
  • * * *
  • DA TE NO. OF WATER TEMPERATURE CC) DISSOLVED OXYGEN CMG/Ll PH SAL!Nll¥ CPPT> PUMPS OPERATING 10/11/78 6 17 * .3-18.0 b.9-l.3 6.9-7.2 6.0-8.0 TOTAL VOLUME FILTERED CM3> 3-4 450.0 TOIAL EGGS TOTAL LARVAE TOTAL YOUNG TOTAL ADULT EGGS: LARVAE: A. MITCHILLI

'fOUNG: A. Ml ICHILLl M. ME:NlDIA S. FUSCUS ADULT: A. l<ilTCHILLl .* -INDICATES BELOW REPORTABLE NUMRERS/CUBlC METER 0.011 0.09) u.UJ4 0.011 0.060 0.009 u .o.u 0.004 + 95% CONFIDENC!:'. LIMIT 0.1!22 0.061 O.UU? o.on 0. 0 I+ 8 D.023 D.035 0.007 IA EN 1978 *

  • TABLE 3.1.8-8 CONTiNUED .DA TE t* 0
  • 0 F S A i*i P L E S WATER CC> DISSOLVED OXYGEN CMG/L) PH SALINITY (PPT> PUMPS OPERATING 11/01/78-11/02/78 8 13.5-14.5

(.9-9.5 99.9-6.0-8.0 2 TOTAL VOLUME FILTERED CM3) 485.0 + 95% . NUMBERS/CUBIC METER CONFIDENCE LIMIT w TOTAL EGGS TOTAL LARVAE TOTAL YOUNG TOTAL ADULT EGGS: LARVAE: G. BOSCI YOUNG: A. AESTIVALIS A. MITCHILLl C. RE:G.ALIS T. MACULATUS ADULT: T. MACULATUS

  • -INDICATES BELOW REPORTABLE
  • * * * * *
  • 0.00) O.U?S D.002 O.OU3 D.003 0.068 0.002 0.003 0.002 *
  • 0.006 0.083 o.oos 0.006 0.006 0.082 0.005 0.006 0.005 IA
  • SALEM EN 1978 * *
  • w * * * * *
  • TA8LE 3.1.8-8 CONTINUED
  • * * *
  • DATE: NO. OF SAMPLES TEMPERATURE CC) DISSOLVE:D OXYGEN CMG/L) PH SALINilY CPPT) PUMPS OPERATING 11/21/78-11/22/78 1 z 8.5-12.5 5.9-8.9 6.8-7.1 10.0-*15.o*

5 TOTAL VOLUME FILTERED (M3> 807.0 t 95% NUMBERS/CUBIC METER CONFIDENCE LIMIT lOTAL EGGS TOTAL LARVAE JOTAL .. ¥0UNG TOTAL ADULT EGGS: LARVAE: M. UNDULATUS BOTHIDAE YOUNG: A. RuSTRATA A. AE:SllVALIS A. l'i!lCHILLl M. Ml:NlDlA G. BOSCl ADULT: k -INDICATES BELOW 0.001 U.001 0. ()03 U.005 0.033 0.002 0.002 0.003 0.022 0.002 0.002 Ci.UU5 n.OU6 n. u 0.004 IA SALl:M EN 1978 *

  • w I-' I .!>> TABLE 3.1.8-8 CONTINUED DATE N 0
  • 0 F S A l*I P L E S wATER TEMPERATURE (C) DISSOLVED OXYGEN CMG/L) PH SALINITY (ppT) PU1'1PS OPERATING 12/13/78 5 5.0-6.0 9.9-11.0 7.1-7.4 5.0-6.0 TOTAL VOLUME FILTERED (M3) 3-5 250.0 + NUMBERS/CUBIC METER 95% CONFIDENCE LIMIT Cf) -------------------*-**----------------------------r-------------------------------------------------***

OJ *

  • lOTAL TOTAL TOTAL TOTAL EGGS: EGGS LARVAE YOUNG ADULT LARVAE: YOUNG: M. MENlOIA T. MACULATUS ADULT: * -INDICATES BELOW REPORTABLE
  • * ** *
  • 0.008 0.004 U.004 *
  • 0.014 0.011 0.011 IA SALEM EN 1978 * * * *
  • * * * * .* * * * **
  • TABLE 3.1.8-9 NUMBER AND PERCENT VIABLE OF FISH EGGS BY SPECIES AND DATE -1978 Date June 28-29 July 12-13 July 27-28 August 10-11 Total No. of Percent viable Bay anchovy, Anchoa mitchilli 523 7.3 15,083 7.4 92 12.0 1,822 2.0 17,520 6.8 Mean salinity 5.9 7.7 7.7 7.0 7.0 Silversides, Membras sp. /Menidia.

spp

  • July 12-13 4 75,0 .7. 7 July 27-28 2 100.0 7.7 Total 6 83.3 7.7 IA SALEM EN 1978 3.1-469 w
  • TABLE 3.1.8-la

SUMMARY

BY DATE OF INITIAL AND LATENT MEAN PERCENT SURVIVAL OF ICHTHYOPLANKTON-1978 Xo:ith/cay/year of l:it<?ke-disc.hargc sa-=:iples Ra::ge i:i a:::bient

  • .:ater temperature (C) in a=ole:it D.O.(cg/l) ic.*a=o!er.t salinity (ppt) pH T (C) Total volc=e a a11/19-2a/i'H 5 :0.2-11.0 8.8-9.7 5.5-8.0 7.2-7.6 o.o 24.0 2 Hours After Collection 4 8 12 Total No. % Live % Stunned % Dead iLi.ve *% Stunned r. Dead 7. Live % Stunned % Dead r. Live % Stunned % Live % Stunned % Dead A.:::u!.t:

Yocr-.g: !::, rostra ta Aculc: A*

  • 3 l 2
  • 100.a o.a laa.a o.o laa.a a.a
  • a.a ioo.a o.o o.o 100.a o.o laa.a o.a a.a 100.a o.o 1aa.a a.a a.a laa.a * * * ------------

a.a a.a 1aa.a a.a o.o 100.a a.o a.o o.a a.a la a.a a.a a.a iaa.a a.a o.o a.a a.a lOa.a a.a a.a 100.0 o.o a.a IA SALEM EN 1978 * * * * *

  • * * * * * * * * * ** TABLE 3,1.8-10 CON'l'INDED Month/day/year 06/28-29/78 No, of intake-discharge samples 7 Range in ambient water temperatures (C) 21.0-26.8 Range in ambient D.O. 6,6-8.4 Range in ambient salinity 4,0-6,0 Range in ambient pH 6,5-7,1 Range in condenser delta 3 T (C) 3.8-6.l Total volume filtered (m ) 42.0 0 2 Hours After Collection 4 8 12 Species Total No. % Stunned % Live % Stunned % Dend % Live % Stunned % Dead % Live % Stunned % Dead Stunned Intake Larvae: A. mitchilll 9 55,6 o.o 44.4 33.3 o.o 66.7 11.l o.o 88.9 11.l o.o 88.9 11. l 0.0 88.9 E. w.artinica l 100.0 a.a o.a iaa.a a.a a.a 100.0 o.o 0.0 100.0 a.a o.o 100.a 0.0 0.0 c.

63 30.2 1.6 68.3 30.2 1.6 68.3 31. 7 a.o 68.3 31.7 a.o 68,3 30.2 1.6 68.3 w 1. 1 100.0 a.o o.a 100.0 a.a a.o lao.o o.o 0.0 100.0 a.o o.o 100.0 o.a 0.0 Q. bosci 1 a.a a.a iao.a a.a a.a lao.a a.o a.o 100,0 o.o o.o 100,0 o.o 0.0 100.0 I-' Young: I """ S. fuscus 3 a.a o.a 100.a o.o o.o iao.o 0.0 o.o 100.0 o.o o.a iao.o 0.0 0.0 100.0 -....] C. regalis 34 58,8 o.o 41.2 55.9 o.o 44,1 55,9 o.o 44.1 55.9 a.a 44.1 52.9 a.o 117 .1 I-' Discharge Larvae: A. ml tchi lli 2 5a.a a.a 5a.o sa.a o.o so.a so.o o.o 50,0 so.a a.o so.o so.a 0.0 50.0 C. regalis 57 89.5 o.a 10.5 87,7 o.o 12.3 87.7 a.o 12.3 63.2 o.o 36.8 63.2 o.o 36.8 1 a.o a.a 100.a a.a o.a iaa.o o.o o.a 100.a o.a o.o 10a.a o.o o.o 100.0 Young: !I. analostanus 1 100.0 a.a o.o iao.o o.o o.o 100.0 o.o o.o laO.O o.o a.a 100.0 a.a o.o C. regalis 49 79.6 16.3 4.1 81.6 14.3 4.1 83.7 10.2 4.1 73.5 10.2 16.3 7 3. 5 10.2 16.3 .h xanthurus 1 laO.Q o.o a.a laa.a a.o o.o 100.0 o.o a.a 100.0 a.a o.o 100.a a.a 0.0 IA SALEM EN 1978 TABLE 3.1.8-10 CONTINUED Month/day/year 09/13-lli/78

o. of oamples ; 11 Range in water teraperature (C) 21.2-23.5 Rnnge in ambient n.o. (mg/l) 6.4-7.9 Range in ambient salinity (ppt) 6.0-9.0 Range in ambient p!I 6.8-7.0 R.
Jngc in condenser delca 3 r (C) 7 .5-11.4 Total volume filtered (m ) 82.0 Hours After Collection 0 2 4 8 12 Species Total No. % Live % Stunned :r. Dead % Live % Stunned % Dead % Live % Stunned % Dead % Live 7. Stunned % Dead % Live % Stunned % Dead Intake .Larvae: w A. mitchllli 3 100.0 o.a o.o 100.0 o.o o.o 100.0 a.a o.o 66.7 33.3 o.o o.o o.o 100.0 :t:-"

1 100.a o.o o.o 100.0 o.a o.a 100.0 o.o o.o 100.0 o.o o.o 100.0 o.o o.o I-' I Young: ,f::,. _i:ii tchllli 40 75.0 10.0 15.0 77.5 7.5 15.0 72.5 12.5 15.0 50.0 27.5 22.5 20.0 27.5 52.5 -..J B...!_ fuscus 4 75.0 o.o 25.0 75.0 o.o 25.0 75.0 o.a 25.0 75.a o.a 25.0 50.a 25.0 25.0 N Adult: mi tchilll 7 57.1 28.6 14.3 71.4 14.3 14.3 57.1 28.6 14.3 42.9 14.3 42.9 28.6 28.6 42.6 Discharge Lar\'ae: !::_,_ ::iltchilli 4 o.a a.a 100.a a.a a.a laa.a a*.O o.a lOa.a o.a o.a 100.0 a.a o.o 100.0 Young: A, mi tchilli 25 76.0 8.0 16.a 76.0 8.0 16.a 68.a 16,a 16.a 48.0 36.0 16.a 2a.o 4.0 76.0 S: fu.scus 3 66.7 a.o 33.3 66.7 a.o 33.3 33.3 33.3 33.3 66.7 o.a 33.3 66.7 a.a 33.3 G. bosci 1 100.0 o.o a.a 100.a a.a o.o 10.0,0 a.a a.o 10a.o o.a o.a 100.0 o.o o.a Adu! t: mitchilli 2 so.a o.o 50.0 5a.a a.a 50.0 50.0 a.o so.a o.o 50.0 5a.o o.o 50.a 50.a IA SALEM EN 1978 * * * * * * * * * * *

  • *r------------Ii;;' -------l I ,. *
  • ADMINISTRATION BUILDING * *
  • 0 300FT SCALE
  • l -----* S' , . -.C AND G . .. LbM NlJCI F \I' AS

Y * ,, ' .. *" Ent ' rainment sampling sites-1978 3.1-473

  • WATER FLOW f--tank _____ .:-__ o.s mm mesh netting *co II ec t ion
  • !'UllLIC r.:u:c:TE!C M:D GAS k Abundance chamber -19 7 8 SAl.l.:M NUCJ.L:,\H

.. ___ . _______ -----_____ .... ,_. __ Figure 3.1.8-2 3.1-474 * * * * * * * * * ** *

  • w * * * * * * * /ALIBRATION NET * *
  • INCLINED NH PlllMAll'i OllAl!.1 I _ ______, UCONDARY DUIN-----------------------

........ r>c*--*<"' ... .<:< -n PUI3LIC SERVICE ELECTH!C AND GAS cm1PANY SALE?.{ GENERATING STAT!Oi\ Larval table 1978 *

  • Figure 3.1.8-3

..... --J......., __ """'_"""' _____ ............ ... -_,,.-7 .. ... fi'h ...... "O"'"""I-$ .... ..._. ......... .,,,.,,,.. ....... .....,, ...... _____ F '

  • w
  • REAR VIEW PUG!..IC SEHVICE ELECTRIC AND GAS SALEM NUCLEAR. GENERATING STATIO;-.;
  • * * *
  • OViUlOW UUICI O*S-MHH Klll"----------IJ--

__ _J SiCONDAlY DRAIN ---------.k ll!ll.UY DRAJ11t-----------------------"" SIDE VIEW Larval table collection box-1978 Figure 3.1.8-4 * * * * * * * *

  • * * * * * * * * * *
  • 3. 2 TERRESTRIAL (ETS Section 3.1.2.1.2)

This program studies the abundance and distribution of vascular plants and nonfish vertebrates on and near Artificial Island. Emphasis is on species of economic or ecological importance or species classified as rare or endangered (U.S.D.I., 1973). Research in 1978 included bird surveys, and surveys of bald eagle occurrence, and osprey nesting, and study of diamondback terrapin nesting

  • 3.2.1 Diamondback.

Terrapin Nesting Study (ETS Section 3.1.2.1.2.1) The objectives are to monitor nesting activity and success of the northern diamondback terrapin, t1alaclemys terrapin terrapin. Northern diamondback terrapin inhabit brackish water along the Atlantic coast from Cape Cod to Cape Hatteras. Burger and Monteveechi (1975) stated that most nests were found above the high tide level in flat areas on sand dunes or beaches that about 20 percent vegetative cover. Generally, it takes the female less than an hour to select a site, dig a flask shaped hole, lay and cover her eggs, and return to the water. Nesting begins in mid-June. Hatching usually begins from mid to late August and may continue into November. Cold weather may cause the young to hibernate in or near the nest and emerge the following spring (Carr, 1952; Lawler and Musick, 1972)

  • 3.2.1.1 Summary Diamondback terrapin nesting was monitored at three beaches on the Delaware River within 4.8 km of Salem. Nesting was recorded from June 10 through late July, with three activity peaks observed.

Degree of activity varied greatly between sites. A total of 127 females was tagged during 1978, with eight recaptures. Estimated number of females utilizing a beach ranged from 36 to 682. Carapace length ranged from 15.3 to 20.6 cm, and age ranged from 12 to 22+ years. Major nest predators were mink, Norway rats, and crows. backed gulls and great blue herons may have preyed on hatched young both in and out of the nest. Hatching was 3.2-1 observed from late August through mid-September. Evidence indicated a total of only 88 young, but this number is highly convervative. Cool spring and summer weather delayed nesting by many females and subsequent hatching of eggs. 3.2.1.2 Study Area Observations were made from June 10. through November 9, 1978 at suitable nesting beaches at Sunken Ship Cove and near the mouth of Hope Creek, New Jersey, and Liston Point, Delaware (Fig. 3.2.1-1). For description and discussion of these three locat.ions see Volume 2 of the 1977 Annual Environmental Operating Report. 3.2.l.3 Materials and Methods The.three sites were searched during daylight from June into November as required by the ETS. Weekly searches for evidence of nesting were conducted in early June. After first evidence of nesting (June 10), the beaches were monitored three to five times a week through July. Searches for depredated nests and emerging hatchlings were made one to three times a week from August through September. Two searches were* conducted during October, and one in November. Each visit consisted of walking the beach and counting turtles, crawl tracks, depredated nests, and eggs. For further description of the study methods see Volume 2 of the 1977 Annual Environmental Operating Report. In 1978, nests containing unbroken eggs were marked with a numbered stake, and the number of eggs and date recorded. These nests were located by following tracks, finding females on the nest, and random searching. Located nests were monitored for predation. If depredated, the date and number of eggs predated were recorded. 3.2.1.4 Data Reduction The following formula was developed to provide a rough relative estimate of the number of nesting females utilizing each study area 3.2-2 * * * * * * * * * * *

  • * * * * * .* * * * *
  • N = (Ps + T )n r v 3 where T is the number of turtles sighted, T is the namber of counted, V is the number of times Ehe study area was visited over the study period, D is the known number of days of nesting activity, and 3 is the estimated mean number of nests laid per female during the nesting season . 3.2.1.5 Results and Discussion NESTING ACTIVITY AND EFFORT Nesting in 1978 began on June 10 and continued through late July. The last dates of observed nesting activity were July 14, 20, and 27 for Sunken Ship Cove, Hope beach, and Liston Point, respectively.

Nesting activity between sites (Fig. 3.2.1-2, 3.2.1-3). Activity appeared to have peaks at Liston Point, with the first on June 19 and the second, and highest, on July 6. The third peak occurred four days later on July 10. It is probable the second and third peaks reflected many renesting females. Hildebrand (1932) reported that cultured terrapin may lay from one to five nests per year, but that most lay from one to three nests. Hope Creek also appeared to have three peaks of activity, with the highest observed on June 20

  • Activity at Sunken Ship Cove slight, but appeared to have two peaks. Nesting activity at this site was greatly affected by heavy usage of the beach by fisherman throughout the summer. Fishermen were present on 23 (85 percent) of the 27 visits made during the active nesting period
  • The activity peaks in 1978 did not exhibit the strong cyclic pattern of nesting observed in 1977. In order for cyclic nesting to occur, two criteria must be met (Worth and Smith, 1976). First, there must be no significant immigrant increase in the rookery once seasonal nesting has begun. Second, hormonal synchrony within the nesting population is implied. All three sites had some activity peaks occurring within one day of each other indicating these three nesting populations may belong to one large population.

However, many females were probably still immigrating into the rookery areas after nesting had begun. Terrapin appeared to be several weeks behind in their normal seasonal cycle due to the cold spring weather. Terrapin are generally first observed in the spring from early to mid-April, but in 1978 were not observed until mid-May. Therefore, most females 3.2-3 were probably not physiologically ready for nesting until late June or early July. Liston Point had the most nesting activity followed by Hope Creek and Sunken Ship Cove (Table 3.2.1-1). The mean number of combined individuals and tracks observed during nesting was 42.6 at Liston Point, 15.4 at Hope Creek, and 2.6 at Sunken Ship Cove. The estimated number of females utilizing each beach was 30 for Sunken Ship Cove, 211 for Hope Creek, 682 for Liston Point. Nesting activity on a daily basis appears related to tide and weather. The highest mean number of sightings was during late flood tide under a clear cloud cover (Table 3.2.1-2). More turtles were generally seen during periods of high tide and clear to partly cloudy skies. Burger and Montevecchi reported a high positive correlation between activity and tidal stage. A total of 5,653 eggs from 776 nests were recorded during 1978. Most nests were found at Liston Point (505 nests, 4,071 eggs). Hope Creek had 266 nests (1,546 eggs), while only five nests (36 eggs) were located at Sunken Ship Cove. Most of the recorded nests were depredated; 88.3 percent at Liston Point, 87.9 percent at Hope Creek, and 60.0 percent at Sunken Ship Cove. PREDATION Marked nests were monitored over the season to determine predation pressure. A total of 63 non-depredated nests were located; 43 at Liston Point, 18 at Hope Creek, and 2 at Sunken Ship Cove. The two nests at Sunken Ship Cove were lost when fishermen removed the stakes. A total of 37 (61.1 percent) of the marked nests were depredated by the end of September; 31 (72.l percent) at Liston Point and 6 (33 percent) at Hope Creek. Burger (1976) reported that 60 percent of the marked nests in her study were destroyed by raccoons, Procyon lotor, and foxes. The only predator tracks observed at Sunken Ship Cove were of the norway ratr Rattus norvegicus. Tracks of mink, Mustela vision; norway rati and crow, Corvus brachyrhynchos, were observed at depredated nests on Hope Creek beach. Mink and.rat tracks were commonly observed at Liston Point. Raccoon tracks were also occasionally sighted. Track evidence indicated that mink, raccoon, norway rats, crows, great black-backed gulls; Larus marinus, 3.2-4 * * * * * * *. * * * * *

  • * * * * * *
  • i I. -* **
  • and occasionally great blue heron, Ardea herodias, preyed on hatchlings both in and out of the nest. 'rAGGED FEMALES A total of 127 terrapin was tagged during 1978; 56 at Liston Point and 71 at Hope Creek beach. No terrapin were captured at Sunken Ship Cove. Eight tagged terrapin were recaptured in 1978. Six of these were recaptured where originally tagged: three at Liston Point and three at Hope Creek beach. The remaining two had lost their tags. Mean plastron length and width of the tagged specimens was 16.9 cm (range: 14.9-18.6) and 9.1 cm (8.2-9.1), respectively, at Liston Point and 16.l cm (14.1-18.4) and 9.0 cm (7.9-9.8) at Hope Creek. Mean carapace length and width was 18.3 cm (range: 16.1-20.6) and 14.0 cm (12.2-15.6), respectively, at Liston Point and 17.3 (15.3-19.2) and 13.3 cm (12.2-14.7) at Hope Creek. Age of nesting females ranged from 12 to 22+ years. Some of the females captured had completely smooth shells which may indicate they were up to 40+ years (Hildebrand 1932). Mean age at Liston Point was 15.9 years (range: 12-22+}, and 16.4 years (13-22+) at Hope Creek
  • HATCHLING ABUNDANCE AND ACTIVITY Hatchlings were first observed August 23, with observations continuing into September.

Tracks of 25 young were found at Liston Point, and 19 hatched nests containing 150 eggs were located. Twenty-nine young were observed. No hatchlings were found at Hope Creek and only one track was sighted. Ten hatched nests containing remnants of 45 eggs were found. At Sunken Ship Cove only 33 tracks of young were recorded. Hatchling activity was greatest during the first two weeks of hatching (Fig. 3.2.1-4). Activity dropped off quickly in September, with the last evidence of hatching observed on September

21. The apparent decrease in hatchling numbers observed in 1978 compared to previous years is felt to be really only a decrease in the number of emerged young. The delay in nesting by many females, coupled with a cooler, wetter incubation period than normal (NOAA, 1978), appeared to delay most hatching to the point where hatchlin*gs did not 3.2-5 emerge from the nest but immediately went into hibernation.

Carr (1952) reported that overwintering in the nest is common for turtles both by unhatched eggs and by hatchlings. 3.2-6 * * * * * * * * * * *

  • * * * * * * . , * * *
  • TABLE 3.2.1-1

SUMMARY

OF NESTING AND HATCHING DATA FOR DIAMONDBACK TERRAPIN -1978 No. of Non-No. of No. of Non-No. of No. of No. of No. of depredated Depredated depredated Depredated Turtles Tracks Period Nests Nests E22s E2gs In Area Observed Sunken Ship 10-15 June 4 16-30 June 12 1 10 2 24 June 16 l 10 2 24 1-15 July 8 1 10 10 14 16-31 July 4 July 12 1 10 10 14 Subtotal (Adults) 28 2 20 12 38 w 1-15 Auc;j. l 2 10 N 16-31 Aug. 5 l 6 20 I ,...] August 6 3 16 20 1-15 Sept. 3 '13 16-30 Sept. 2 September 5 13 October 2 November 1 Subtotal (Young) 14 3 16 33 Total 42 2 3 20 16 12 71 IA SALEM T 1970 TABLE 3.2.1-1 CONTINUED No. of Non-No. of No. of Non-No. of No. of No. of No. of depredated Depredated depredated Depredated Turtles Tracks Area Nests Nests Eggs Eggs In Area Observed Hope Creek Beach 10-15 June 5 2 3 26 24 a 8 16-30 June 13 12 66 67 364 44 178 June 18 14 69 93 388 52 186 1-15 July 9 7 52 54 322 31 84 16-31 July 4 31 184 6 10 July 13 7 83 54 506 37 94 Subtotal (Adults) 31 21 152 147 894 89 280 w 1-15 Aug. 1 23 162 16-31 Aug. 4 5 30 17 133 1 N I August 5 5 53 17 295 1 00 1-15 Sept. 3 25 136 16-30 Sept. 2 5 5 28 29 September 5 5 30 28 165 October 2 November 1 Subtotal (Yeung) 13 10 83 45 460 1 Total 44 31 *235 192 1,354 89 281 IA SALEM T 1978 * * * * * * * * * * * * *

  • * * * * * * * * * * *
  • TABLE 3.2.1-1 CONTINUED No. of Non-No. of No. of Non-No. of No. of No. of No. of depredated Depredated depredated Depredated Turtles Tracks Nests Nests Eg9:s Eg:gs In Area Observed Liston Point 10-15 June 5 12 5 121 55 5 23 16-30 June 13 17 65 190 492 35 4BS June 18 29 70 311 547 40 511 1-15 July 10 12 2o9 145 1,637 40 499 16-31 July 4 l 57 10 436 2 SS July 14 13 266 155 2,073 42 557 Subtotai (Adults) 32 42 336 466 2,620 B2 1,068 1-15 Aug. 1 8 66 16-31 Aug. 5 8 54 71 424 29 22 w August 6 8 62 71 490 29 22 N I 1-15 Sept, 3 7 43 51 319 2 \0 16-30 Sept, 2 4 3 28 26 l September 5 11 46 79 345 3 October 2 November 1 Subtotal (Young) 14 19 108 150 835 29 25 Total 46 61 444 616 3,455 111 1,093 IA SALEM T 1976 TABLE 3.2.1-2 DIAMONDBACK TERRAPIN SIGHTINGS RELATED TO TIDE AND CLOUD COVER*-1978 Cloud Cover (0-10) Clear Partly Cloudy Overcast Tide (0-3) (4-6) . (7-10) Total Flood 1 1.6 2.8 o.o 4.4 Flood 2 7.0 2.4 4.2 13.6 Ebb 1 3.3 5.0 s.o 13.3 Ebb 2 0.2 2.7 0.1 3.0 Total 12.1 . 12.9 9.3
  • Information for tide and cloud cover is from NOAA (1977) and NOAA (1978), respectively.

IA SALEM T 1978 3.2-10 * *

  • * * * * * * * *
  • * * ,. ! .* * * * ** * ----

--s-, -rir " . Cr \ 'ff : 1 8,4 . ....... i &1111Diamondback Terrapin Beach X Bald Eagle Sighting 8 Osprey Nest 4/1 Tower Number Osprey Survey 0 I l I I I I . \'.) km. Diamondback .terrapin study ... ,,." .. *o.--t.. (, .... 2 I sites, PUJJLIC ELEC:TlZIC AND GAS cm!PANY osprey nests, and bald eagle SALEM NlJCJ.E,\l? GENEHATING ST.\'l'ION sightings -1978 Figure 3.2.1-1 3.2-11 24 220 200 110 1&0 ell t,) flj 140 s..i 8 1io. 0 s..i Q) 10 Point ::! Liston z ao &O 10 15 20 5 15 20 25 June July Date Nesting activity of diamondback PUDLIC SERVICE J::LEC:TRIC Al\D GAS CO!l!PANY terrapin at Liston Point -1978 St.LEM NUCLEAR GENERATING STATION Figure 3.2.1-2 3.2-12 *

  • I .1 * * * *
  • 30 * * *
  • *
  • I iao I
  • 40
  • Hope Creek * .
  • 20
  • 10 Sunken Ship Cove
  • 30 Date
  • x -indicates visit but no tracks or young observed Nesting activity of diamondback
  • PUlJLIC SERVICE l'.:LECTRIC AND GAS COMPANY terrapin at Hope Creek and Sunken SALEM NUCLE.\R GENERATING STATION Ship Cove -1978 Figure 3.2.1-3.
  • 3.2-13 40 30 20 10 Liston Point t:TI s:: :s 0 >t 'O s:: 10 ll:S 1:1) LJ m Hope Creek J..I E-1 "-! 0 M a> 20 ::s z 10 Sunken Ship Cove 15 !i 10 15 20 25 September Date x -indicates visit but no tracks or young observed PUllLIC SERVICE I:::LECTR!C AND GAS COMPANY SALEM NUCLE.\R GE::-IERATING STATION Hatching activity of diamondback terrapin -1978 Figure 3.2.1-4 3.2-14 * * *' * * *. * * * * *
  • * * * * * * * * * *
  • 3.2.2 Bird Population Studies (ETS Section 3.1.2.1.2.2)

Bird surveys were conducted during r1arch through December to provide a quantitative assessment of species composition, seasonal abundance, and local distribution within 4.8 to 8.0 km of Salem. Surveys not conducted during January and February due to weather conditions. 3.2.2.l Summary The greatest numbers of individuals and species were sighted during migrations. The abundant species sighted on the river were the Canada goose, laughing gull, great backed gull, Bonaparte's gull, and herring gull. Herons were common from late spring through mid-summer. Abundant waterfowl were the Canada goose, green-winged teal, black duck, and mallard. Black ducks and mallards were the only confirmed year-round residents. Green-winged teal, and Canada geese were commonly observed migrants; Canada geese also wintered in the area . 3.2.2.2 Study Area The study area survey covered tidal creeks. correlation of was described in Clark (1976). The bird approximately 11 km of the river and 43 km of This was divided into six zones to enable sightings with community type (Fig. 3.2.1-1). Zone 1 (864 ha or 2,136 acres) includes all of Artificial Island and is composed of pasture, freshwater potholes, tidal marsh, sandy beach, disturbed area, and open water communities. Zone 2 (1,219 ha or 3,013 acres) is predominantly saltmarsh cordgrass and includes tidal marsh and tidal mud flats on both sides of Alloway Creek. Reed, trees, and shrubs occur along the creek banks. Zone 3 (226 ha or 558 includes the town of Hancocks Bridge, a part of Alloway Creek west of Salem-Hancocks Bridge Road, and an impounded freshwater marsh vegetated primarily by reed

  • 3.2-15 Zone 4 (1,193 ha or 2,949 acres) includes the tidal marsh surrounding Halfway Creek and Hope Creek downstream from Salters Creek. Reed marsh and low cordgrass marsh are the predominant associations, with reed occupying most of the tidal marsh adjacent to Halfway Creek and lining the banks of most of Hope Creek. Zone 5 (1,097 ha or 2,710) includes low tidal marsh, tidal mud flats, and farmland surrounding the uppermost region of Hope Creek and all of Salters Creek. Saltmarsh cordgrass is the predominant species. Zone 6 (497 ha or 1,227 acres) is predominantly low tidal marsh adjacent to Fishing Creek. Saltmarsh cordgrass is the predominant species, but reed occupies much of the creek banks. 3.2.2.3 Materials and Methods All ETS required samples were collected in 1978. Surveys were made weekly to monthly permitting) throughout the year in areas regularly accessible by boat or foot. The data are presented as two separate surveys: the river bird survey, including all bird species observed on the survey route on the Delaware River; and the waterfowl survey, including ohly waterfowl and osprey observed on the river and creeks. Detailed description of the survey methods and route can be found in Volume 2 of the 1977 Annual Environmental Operating Report. The American coot, Fulica americana, was recorded as a waterfowl species due to similarity of habits and habitat. 3.2.2.4 Results and Discussion RIVER SURVEY Approximately 80 percent of the species observed on the river were summer or winter residents, the rest occurred only during migration.

About half are known to breed in the general region. 3.2-16 * * * * * * * * * * *

  • * * * * * * * * * **
  • The most sightings were during April (X = 1,169 individuals), probably the peak month of spring migration (Table 3.2.2-1).

March (X = 1,020 individuals) also had high migratory activity. The fewest sightings were in June (X = 136 individuals) . The most species (26} occurred during April and the fewest (10) in October (Table 3.2.2-1). A total of 58 species was recorded on the river in 1978. Abundant species on the river in 1978 were _the Canada goose, Branta canadensis; laughing gull, Larus atricilla; great black-backed gull, Larus marinus; and herring gull, Larus argentatus. Gulls were usually common but were most abundant during May, July, and August. The laughing gull was the common gull from August through November. Waterfowl, especially Canada geese, were most abundant during March through April. Herons and egrets (Ardeidae) were common during May through July. Distribution correlated with habitat requirements. Gulls were often sighted where perching was available, e.g., Hope Creek Jetty, Sunken Ship Cove, and the pilings along the west shore of Artificial Island. Dabbling ducks were most often sighted in Sunken Ship Cove, along the west shore of Artificial Island, and in the region of the cove off the northeast side of the island. A flock of 200 to 900 Canada geese was common in this cove during late winter and early spring. These areas offer some shelter from wind and waves. Diving ducks were generally found offshore although small groups were often observed in Sunken Ship Cove. Herons and egrets were usually in quiet, shallow waters along the shore, e.g., the beach at Sunken Ship Cove and behind the pilings on the west shore of Artificial Island

  • WATERFOWL SURVEY Most species occur as winter residents or during migration; only a few breed in the area. Sightings were highest in March (X = 1,385 individuals) and April (1,133) (Table 3.2.2-2). This reflected the many Canada geese in the area. Sightings were lowest in July (X = 10 individuals).

The most species occurred in March (13) and the fewest in July (2). Migration was most active from March through April and September through December. 3.2-17 The most abunaant waterfowl were Canaaa geese; green-wingea teal, Anas carolinensis; black aucks, Anas rubripes; ana mallaras, Anas platyrhynchos. Canaaa geese occurrea from March through June ana October through December. Black ducks ana rnallaras were the only annual residents regularly observed. Green-winged teal were observed March through May ana August through December Most sightings were in Zones 1, 5, ana 6 (Table 3.2.2-3). The most sightings were recorded on the river (Zone 1). Canada geese, black ducks, and mallards were common. Most sightings were of Canada geese. Zone 5 contains a large area which is mostly open water at high tide and mud flat at low Large numbers of Canada geese; black aucks; pintails, Anas acuta; mallards; and green-winged teal used this during migration. This zone also contains many narrow streams and ditches lined primarily with saltmarsh cordgrass and very little reed. Saltmarsh cordgrass is an important food and cover plant for waterfowl in this region (Clark, 1976), while reed is of relatively little value for either food or cover. Black ducks and occasionally mallards were flushed from these streams and ditches, especially at high tide. Zone 6 is preaominantly low marsh with many small streams and ditches. Birds often use this area for shelter during high winds. Most sightings were of green-winged teal during migration. Black ducks and mallards were also common. 3. 2-18 * * * * * * * * * * *

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  • Table 3,2.2-1 MONTHLY MEAN NUMBER OF BIRD OBSERVATIONS

-1978 Jan Feb March April June Juiy Sept Oct Nov Dec Total Number of Surveys -0---3-3 3 -s 3 2 2 -3--r-29 Mean Number of Individual Sightings 1020.0 1168.7 312.7 136. 2 266.0 268.5 186.5 176.3 216,0 293.0 4043.9 Percent by Month 25.2 28.9 7.7 3,4 6.6 6.6 4.6 4.4 5.3 7.3 Species Red-throated loon 0.7 l.O 0.1 Double-crested cormorant 0.3 24.0 26.7 1.4 l. 7 3.5 4.0 1. 8 1.3 6.6 Canada goose 542.3 994.7 6.0 2.7 82.0 162.8 Snow goose 10.0 2.0 l. 2 Mallard 113. 7 5.3 4.0 0.2 12.7 Black duck 47.3 6.7 1. 7 0.2 0.5 0.6 1.3 39.0 7. 4 Black or mallard 0.3 <O.l Pintail 53.3 1. 3 5.7 Blue-winged teal 1.3 0.1 Green-winged teal 20.0 3.3 1.0 2.6 Canvasback

5. 7. 4.0 0.7 Greater scaup . 73.0 7.6 Common goldeneye 10.7 1.1 Bufflehead 0,7 0.3 1.3 0.2 Red-breasted merganser 3.0 0.1 Unidentified duck 6.7 0.7 w Sharp-shinned hawk 0.3 <0.1 Marsh hawk 2.3 0.3 0.3 0.2 1.0 1. 0 0.5 N Red-tailed hawk 1.3 0.1 I Eastern merlin o". 3 <0.1 f-' American kestrel 0.3 0.2 0.1 l.D Ring-necked pheasant 1.0 0.7 0.2 Great egret 0.3 2.0 2.0 0.5 0.6 Snowy egret 0.3 0.7 2.2 4.3 0.9 Cattle egret 1.3 2.5 0.3 Great-blue heron 0.7 1. 7 3.6 l. 7 0.5 1.1 Black-crowned night heron 3.0 9.4 3.7 2.3 Glossy ibis 3.0 0.3 American coot 0.6 0 .1 Black-bellied plover 2.7 0.3 Killdeer 0.3 0.4 0.1 Spotted sandpiper 0.5 <o .1 Greater yellowlegs 0.7 0.3 0.1 Least sandpiper 6,3 0.7 Semipalmated sandpiper 1.0 0.2 . 1.0 0.2 Common snipe 0.7 0.3 0.1 Great black-backed gull 5.0 a.a 105. 0. 75.B 153.7 60.0 38.5 9.0 7.7 23.0 50.8 Herring gull 5.7 11. 7 129.3 21. 0 11. 7 12.0 20.5 18.0 25.7 87.0 30.4 Ring-billed gull 1. 3 6.3 3.6 4.0 3.5 23.7 2.Q 4.6 Laughing gull 5.3 14.0 74.7 179.0 115.0 87.3 125.7 51. 0 57.8 Bonaparte's gull 12.3 l. 3 Least tern* 0.3 3.5 4.0 5.0 1.1 Common tern 1.3 0.1 Mourning dove 1.3 0.3 2.0 0.3 Belted kingfisher 0.5 1.0 1.0 0.2 IA SALEH*T 1978 Table 3.2.2-1 CONTINUED Jan Feb March April June July fil!.s. Sept Oct Nov Dec Total Nu::iber of Surveys -0---3-3 3 3 2 2 -3--1-Hean Nc:::iber of Individual Sightings 1020.0 1168.7 312.7 136.2 266.0 268.5 186.5 176.3 216.0 293.0 4043.9 Percent by Month 25.2 28.9 7.7 3.4 6.6 6.6 4.6 4.4 5.3 7.3 Sr:cc t.£2 Yellow-shaftP.d flicker 0.3 <O.l Kingbird 0.3 <O.l Barn swallow 2.0 1.4 2.7 o.s 0.8 Tree swallo\*J
1. 3 0,3 14.8 2.2 swallow 2.0 . o. 2 0.2 Comrr.on Crow 0,3 l,O 2,0 0.2 2.7 0.7 fish crow 0.5 0,1 w St ad ing 4.0 0,6 11eadowlark 1.3 0.1 [\..) Red-winged blackbird 100,0 93. 3 18.3 1.3 20,5 24.9 I Cowbird 16,7 0,5 1.8 [\..) Common grackle 0,6 3.3 0.4 0 Unidentified blackbirds 12,5 l. 7 Song sparrow 1.0 0,1 IA SALEM T 1978 * * * * * * * * * * * *
  • * * * * * ** * * * * * *
  • TABLE 3.2.2-2 MONTHLY MEAN NUMBER OF SIGHTINGS WATERFOWL AND OSPREY -1978 Mar !:@y June July Aug. Seot Oct Nov Dec Total Number of Surveys 3 3 2 2 -3--1-2s-Mean Number of Individual Sightings 1385.0 1133.0 35.7 16.8 9.5 25.0 187.5 168.8 204.3 144. 0 3309.6 Percent by Month 41.8 34.2 1.1 0.5 0.3 0.8 5.7 5.1 6.2 4. 3 Species Canada goose 833.0 1024.7 B.3 2.8 6.0 24.3 B2.0 206.8 Snow goose 10.0 2.0 1. 3 Mallard 115.3 20.0 10.7 2.4 0.5 l. 0 26.0 36.8 31.0 26. 6 w Black duck 137.7 26.3 9.7 4.0 4.0 25.5 24.8 24.3 40.0 29.0 Black or mallard 0.3 11. 3 14.0 1.8 N Pintail 134. 3 1.3 5.5 3.3 15.3 I Gad wall 1.3 0.3 0.2 N Blue-winged teal l. 3 3.5 0.8 o. 5 ....... Green-winged teal 51. 0 38.7 0.7 19.0 126.0 99.8 119.3 1.0 47.l Wood duck 2.0 l. 3 o.s 0. 4 Canvasback 5.7 4.0 O.B Greater scaup 73.0 7.8 Common goldeneye 10.7 1.1 Bufflehead 0.7 0.3 1.3 o. 3 Red-breasted merganser 3.0 0.1 American coot 0.7 0.8 Osprey 1. 3 5.3 6.3 7.6 9.0 1.0 1.0 0.3 0.2 IA SALEM T 1978 TABLE 3.2.2-3

SUMMARY

BY ZONE OF WATERFOWL.SIGHTINGS -1978 Zone 1 2 3 4 5 6 Total Number of Species. 15 6 8 5 9 6 16 Number of Individual Sightings 5123 284 769 58 2186 1101 9521 Percent by Zone 53.8 3.0 8.1 0.6 22.9 11. 6 .§_2ecies Canada goose 4545 13 131 1102 5791 Snow goose 36 36 Mallard 130 91 194 10 220 100 745 Black duck 85 72 119 38 291. 207 812 Black or mallard 1 1 2 45 49 w Pintail 4 46 77 5 287 .9 428 N Gat'lwal 1 4 1 5 I N Blue-winged teal 4 7 3 14 N Green-winged teal 14 60 238 1 273 733 1319 wood duck 4 4 4 12 Canvasback 21 21 Greater scaup 219 219 Common goldeneye 32 32 Bufflehead 7 7 merganser 3 3 Unidentified duck 20 2 22 American coot 2 1 2 1 6 IA SALEM T 1978 * * * * * * * * * * * *

  • w N I N w * *
  • I I I I I I I I I ' ' ...... ..... ' ' ' * ' ' ' ' ', ...... Pt.:BLJC SER\'!CE ELECTRiC AND G.\S Cm.!PAl\Y GCNEHATl:-\G STATIO;-\
  • * * * * * *
  • Kilc:.ihrs The bird survey study area and the six waterfowl survey zones -1978
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  • 3. 2. 3 BALD EAGLE AND OSPREY MONITORING STUDY (ETS Section 3.1.2.1.2.3)

The study objectives are to record the occurrence of osprey and bald eagle and to monitor nesting of osprey in the vicinity of Artificial Island. The southern bald eagle, Haliaeetus

1. leucocephalus, is classified as "endangered" (U.S.D.I., l974); and the North American osprey, Pandion haliaetus carolinensis, as "status undetermined" (U.S.D.I., 19 73) . 3.2.3.1 Summary Osprey were observed in the study area from March 15 through October 6. Eleven osprey nests were monitored by helicopter in 1978. Nine nests were located on transmission fowers, 1 on pilings, and 1 on a nesting platform.

Seven nests contained eggs and were considered active. These nests produced 10 fledged birds for a nesting success of 67 percent, with a mean of 1.11 young/active nest

  • Bald eagle were observed once in the study area during 1978. Two birds were sighted May 28 near Taylors Bridge, Delaware . 3.2.3.2 Study Area The study area extends 16.l km north, 12.9 km south, and 8.0 km east and west from Salem. The northern boundary is near Finns Point, New Jersey and the southern boundary is just north of Woodland Beach, Delaware (Fig. 3.2.1-1).

The area features riverine, bay, upland field, and wooded habitats. Pilings, range towers, and powerline towers are common . 3.2.3.3 Materials and Methods Known osprey nests were checked by helicopter about every two weeks during April through August. During flights the region was searched for additional osprey nests and for bald 3.2-24 eagle. The number of adults, eggs, nestlings, and fledglings in each nest were recorded. Bald eagle sighted by IA personnel were recorded to location, activity, and age (adult or immature). 3.2.3.4 Results and Discussion Adult osprey were sighted from March 15 through October 6. Most sightings were made during the bird survey. The most sightings were in July (Table 3.2.2-2). Sightings were of possibly eight adults. Eleven nests were located and monitored in 1978 (Table 3.2.3-li. Nine nests were located on transmission towers, 1 on pilings, and 1 on a nesting platform. Four nests were known to be inactive or were destroyed early in the season. Seven nests contained a total of 10 young, all of which fledged. The number of ,eggs and newly hatched young was not recorded for all nests. Most females at the active nests remained on the nest while the helicopter was near. Considering only the seven possible active nests, nesting success in 1978 was 67 percent. The.mean number of young fledged per active nest was 1.11. This is well within the 0.95 to 1.30 immatures per adult female that Benny and Wight (1969) estimated is needed each year to ensure population stability. Two adult bald eagles were sighted flying north over Delaware Route 9 east of Taylors Bridge on May 28 by IA personnel. 3.2-25 * * * * * * * * * * ** *

  • w N I N O'\ * * * * -OSPREY Location of River piling east of Getty Oil Refinery, Delaware City Nesting platform, Reedy Island Jetty* Nests on Transmission Line Towers Salem -Keeny 3/1* Salem -Keeny 4/3 Salem Keeny-8/4 Salem -North 2/3 Salem -North 3/4 Salem -North 4/1 Salem -North 6/1 Salem -South 2/4 Salem -South 5/1 Total * = Disappearance of nest. ** = Unable to determine.
  • * * * * * ** e TABLE 3.2.3-1 NESTING AND SUCCESS -1978 No. of Eggs No. of Young No. of Fledglings Observed Observed Observed ** 0 0 2 0 1 1 1 ** 0 0 ** 1 l ** 3 3 ** 1 1 2 0 0 1 1 1 *'Ii 3 3 10 10 IA SALEM 'I' 1978
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3.3 REFERENCES

Arndt, R. G. 1974. The biology arid economics of the blue crab, Callinectes sapidus, in the Delaware River near Artificial Island 1-r971. Pages 604-705 in An ecological study of the Delaware River ir1the vicinity of Artificial Island. Progress Report for the period January-December 1971. Ichthyological Associates. 709 pp. Browne, M. E., L.B. DeLancey, D. A. Randle, and w. H. Whitmore. 1976. A study of zooplankton in the Delaware River in the vicinity of Artificial Island in 1974. Pages 1-152 in An ecological atudy of the Delaware River in the vicinity of Artificial Island. Progress Report for the period January-December 1974. Vol. II. Ichthyological Associates. 517 pp . Burger, J., and W. A. Montevecchi. 1975. Nest site selection in the terrapin Malaclemys terrapin. Copeia 1975:113-119

  • Burger, J. 1976. Behavior of hatchling terrapins (Malaclemys terrapin) in the field. Copeia 1976 (4):742-748. . Carr, A.

Handbook of turtles. Comstock Publishing Assoc., Cornell Univ. Press, Ithaca, NY 542 pp. Clark, R. S. 1976. Studies of the marsh and terrestrial ecology in the vicinity of Artificial Island, Salem County, New Jersey. Pages 409-456 in An ecological study of the Delaware River in the vicinity of Artificial Island. Progress Report for the period January-December 1974. Vol. II. Ichthylolgical Associates. 517 pp

  • Connelly, R. A., G. A. Hayes, T. s. Kartachak, and R. A. Tudor. 1976. A quantitative study of benthic rnacroinvertebrates of the Delaware River in the vicinity of Artificial .Island in 1973 and 1974. Pages 183-366 in An ecological study of the Delaware River in the vicinity of Artificial Island. Progress Report for the period January through December 1974. Vol. II. Ichthylolgical Associates.

517 pp. Cronin, L. E., J. C. Daiber, and E. M. Hulburt. 1962. Quantitative seasonal aspects of zooplankton in the Delaware River estuary. Ches. Sci. 3(2):63-93. 3.3-1 Dixon, W. J. (ed.). 1975. BMDP: Biomedical Computer Programs. University of California Press, Los Angeles. 792 pp. Harmic, J. L. 1958. Some aspects of the development and the ecology of the pelagic phase of the gray Squeteague, Cynoscion regalis (Bloch and Schneider) in the Delaware estuary. Ph.D. Thesis (unpubl). Univ. of Del. 80 pp. Henny, C. J., and H. M. Wight. 1969. An endangered osprey population: estimates of mortality and production. Auk 86(2):188-198. Hildebrand, *s. F., and L. E. Cable. 19 30. Development and life history of fourteen teleostean fishes at Beaufort, NC. Bull. Bur. Fish., 46 (1930). Bur. Fish. Doc. 1,093:383-488. Hildebrand, s. F. 1932.* Growth of diamondback terrapins, size attained, sex ratios, and longevity. Zoologica 9 (15) :551-563. Hopkins, T. L. 1965. Mysid shrimp abundance in surface waters of Indian River Inlet, Delaware. Ches. Sci. 6(2):86-91. Hulburt, E. M. 1957. The distribution of Neomysis americana in the estuary of the Delaware River. Limnol. Oceanogr. 2(1):1-11. Kuntz, A. 1914. The embryology and larval development of Bairdiella chrvsura and Anchoa mitchilli. U.S. Bur. Fish., Bull. 33:1-19. Laver, G. T., w. T. Waller, D. w. Bath, W. Meeks, R. Heffner, T. Ginn, L. Zubarik, P. Bibko, and P. c. Storm. 1974. Entrainment studies on Hudson River organisms. Pages 37-82 in Proceedings of the second workshop on entrainment and intake screening. Rep. No. 15. The John Hopkins Univ., Baltimore, MD. 347 pp. Lawler, A. R., and J. A. Musick. 1972. Sand beach hibernation by a northern diamondback

terrapin, terraDin terrapin (Schoepff).

Copeia 1972(3) :389-390. Lindsay, J.A., and N. J. Morrisson. 1974. A study of zooplankton in the Delaware River in the vicinity of Artificial Island in 1973. Pages 342-417 in An ecological study of the Delaware River in the vicinity 3.3-2 * * * * * *. * * * ** *

  • * * * * . * * * * **
  • of Artificial Island. January-December 1973. 517 pp. Progress Report for the period Ichthyological Associates.

Marriott, F. H. C. Observations. 1974. The Interpretation of Multiple Academic Press, New York. 117 pp . National Oceanic and Atmospheric Administration. 1977. Tides tables -1978, East Coast of North and South America. National Ocean Survey, Rockville, MD. National Oceanic and Atmospheric Administration. 1978. Local Climatological data -Wilmington, Delaware . National Climatic Center, Asheville, NC. National Oceanic and Atmospheric Administration. 1972. C&GS Chart 294. Delaware River, Smyrna River to Wilmington. National Ocean Survey, Washington, DC

  • Nelson, T. C. 1928. On the association of the common goby (Gobiosoma bosci) with the oyster, including a case of parasitism.

Nat. Hist. 28(1):78-84 . "Pielou, E. C. 1977. Mathematical Ecology. Wiley -Interscience, New York. 385 pp. Public Servite Electric & Gas Company. 1978a. Biotic Environmental Surveillance. Volume 2 of 3 in 1977 Annual Environmental Operating Report, SaleiilNuclear Generating Station -Unit No. 1, January 1 through December 31, 1977. 679 pp . Public Service Electric & Gas Company. 1978b. Summary Assessment of Weakfish Impingement: Summer 1978. Salem Nuclear Generating Station -Unit 1. Shannon, c. E., and w. Weaver

  • theory of communication.

Urbana. 117 pp. 1963. The mathematical Univ. of Illinois Press, United States Department of Interior. 1973. Threatened wildlife of the United States. Bur. Sport Fish. and Wildl. Resource Pub. 114. 289 pp

  • United States Department of Interior.

1974. United States list of endangered fauna. U.S. Fish and Wildl. 22 pp. worth, D. F., and J. B. Smith. 1976. Marine turtle nesting on Island, Florida, in 1973. Florida Dept. Nat. Resource, Florida Mar. Res. Pub. No. 18. 17 pp. 3.3-3 Weber, c. I. (ed.). 1973. Macroinvertebrates. 38 pp. in Biological Field and Laboratory Methods for Measuring the Quality of Surface Waters and Effluents. EPA-670/4-73-001. U.S.E.P.A. Cincinnati, Ohio. Welsh, B. L. 1975.. The role of grass shrimp, Palaemonetes pugio, in a tidal marsh ecosystem. Ecology 56(3):513-530. 3.3-4 * * * * * * * . * * * *}}

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