ML20079N027
| ML20079N027 | |
| Person / Time | |
|---|---|
| Site: | Mcguire, McGuire  |
| Issue date: | 05/31/1983 |
| From: | Leonard T DUKE POWER CO. |
| To: | |
| References | |
| RTR-NUREG-1437 AR, DUKEPWR-83-02, DUKEPWR-83-2, NUDOCS 9111110050 | |
| Download: ML20079N027 (72) | |
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- 3) A COMPARISON OF FOUR' GEAR TYPES TO l MEASURE F.NTRAINMENT OF LARVAL FISH l
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.- DUKEPWR/83-02 A COMPARISON OF FOUR GF.AR TTPES TO MEASURE ENTRAINMENT OF LARVAL FISH l
i Duke Power Company l Charlotte, N. C.
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' DUKEPWR/83-02 A COMPARISON OF FOUR GEAR TYPES TO MEASURE ENTRAINMENT OF LARVAL FISH by Timothy J. Leonard Duke Power Company Charlotte, N. C.
May, 1983
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i ABSTRACT Four techniques to measure power plant entrainment were compared on the basis of efficiency, reliability, and cort. Mean densities of shad (Dorosoma spp.)
collected were highest when using a condenser cooling water (CCW) tap valve and decreased with each technique in the order vf a pump / net system, a fine mesh screen, and a stationary net. Comparisons with concurrent trawl samples indicated that mean densities in the pump / net and tap samples seemed to respond to changes in larval fish mean densities in the reservoir proximal to the intake. The mean denstties in the stationary net and fine mesh screen samples were significantly different from each other and from the other techniques.
The mean densities f rom the pu=p/ net and tap collections were not significantly different. Weighted mean lengths of Dorosoma spp. collected with the pump / net, tap, and trawl were 12.1. 16.4 and 19.8 mm, respectively. This seemed to indicate the pump / net system was more size selective than the tap. Problems with equipment operation and/or high labor expense made the stationary net, fine me?h screen, and pu=p/ net system unsuitable for sampling entrainment.
The technique utilizing the CCW tap was chosen as the most efficient, reliable, and cost effective e5+ hod.
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- INTRODUCTION Entrainment is defined as the capture and inclusion of organisms in the cool-ing water of power plants (Schubel and Marcy 1978). Due to their relatively irrobile and free-floating nature, larval fish are especially vulnerable to ent ra inment. During their passage through a power plant cooling system, these organisms encounter physical and chemical stresses (Ecological Analysts 1980).
These stresses are often fatal to entrained organisms, with up to 100% mortality being reported at some power plants (Marcy 1975). Due to the tremendous vol-umes of cooling water flowing through a power plant, the effects of entrainment could have significant impact on an aquatic connunity. In reaction to the potential deleterious effects of entrainment, congress promulgated the Federal Water Pollution Control Act. This act, as amended in 1972, requires that ". . .
the location, design, construction and capacity of cooling water intake stru-ctures reflect the best technology available for minimizing adverse enviro *)-
rmntal impact. . . ". To assure compliance, accurate assessment of ichthyopl6nkton j entrainment is essential.
Intake structures are uniquely designed for each p' ant. This diversity often favors a particular sampling technique for the assessment of entrainment. A literature review revealed that four primary entrainment sampling techniques have been used:. stationary nets, fine mesh screens, pump / net systems, and con-denser cooling water (CCW) taps.
Stationary 7:ets have been commonly used to sample the entrainment of larval fish (Snyder 1975; Kelso and Leslie 1979). Out of twenty-two entrainment studies reviewed by Ecological Analysts (1979a), nine studies utilized stationary nets. The typical gear is a 0.5- or 1.0-m diameter conical plank-ton net, suspended in the flow of the intake (Synder 1975; Ecological Analysts 1976, 1980; Kelso and Leslie 1979).
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Sampling with fine mesh screens attached to the traveling screens of a power plant intake has been attempted (Duke Power Co., unpublished data). Although not attempting to assess entrainment. Tomljanovich et al. (1977) did collect larval fish using fine mesh screens in a test of a design to prevent impinge-ment mortalities.
Pump / net systems are the most commonly used techniques to assess entrainment 5
densities (Ecological Analysts 1979a). The basic pump / net system consists of a centrifugal or diaphragm pump, hoses, and a filtering device (Ecological Analysts 1980; Jude 1975; Elder et al. 1979; McGroddy and Wyman 1977).
Filtering water drawn from a condenser cooling water tap has also been used to assess larval fish entrainnent. This has been used at several Duke Power Company steam stations (Duke Power Co., unpublished data; Olmsted and Adair 1981) and at the Dairyland Power Cooperative Genoa No. 3 site (McInerny 1980).
OBJECTIVES Duke Power has historically collected entrainment data at operating plants using CCW taps. This method has never been adequately validated in a comparison to other techniques.
The specific objectives of this study were:
- 1) to compare 'a stationary net, a fine nesh screen, a pump / net system, and a CCW tap for estimating the density of larval fish entrained at a power plant,
- 2) to make recommendations pertaining to the use of each gear type based on relative collection efficiency, reliability, and cost, and
- 3) to make retemmendations concerning the design of future entrainment sampling studits.
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t STUDY AREA ,
McGuire Nuclear Station (MNS) is a two-unit plant utilizing once-through cool-ing on Lake Nonnan, NC (13,156 ha)(Figure 1). The CCW system at MNS utilizes separate upper and lower intake structures, using only the upper intake through-out most of the year. Four pumps for each unit draw water from 4.6 to 14 m below full pond (232 m msl) through the upper intake structure. Each pump 2
draws water through two openings of 31.2 m each into a pump bay in the intake structure (Figure 2). Vertical traveling screens are locat xthind each open-ing. A curtain wall above each opening prevents direct withdrawal of surface water (Figure 3). Water from the Unit 1 CCW pumps passes through a single pipe before entering the turbine building.
METHODS AND MATERIALS Only the intake bays and the CCW tap of MNS Unit 1 were sampled. Three pumps of Unit 1 operated continuously through the entire study. All six of the operating pump openings were sampled each night in a rotating order with the stationary net and the pump / net system (Table 1). Only three openings were sampled each night with the fine mesh screen due to operating problems with the travelling screens. All techniques were operated concurrently. The pump /
net system and stationary net simultaneously sampled the sarne opening. However,
- an opening being sampled with the pump / net system and the stationary net was not sampled simultaneously with the fine mesh screen.
1 To minimize effects from changes in larval density or plant operations, sampling occurred on five consecutive nights (beginning about 30 min after sunset), 6 through 10 June 1982. The sampling dates were chosen to coincide with the peak spawning time of threeafin shad (Dorosoma petenense) and gizzard shad (Dorosoma cepedianum) in Lake Norman (Siler et al.1981).
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Figure 1. Location of McGuire Nuclear Station on Lake Noman, N. C. Inset depicts location of upper intake structure in artificial embayment.
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232 m msl., indicating pump and intake opening designations.
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-INTAKE CHANNEL OPENING Figure 3. Cross section of McGuire Nuclear Station upper level intake structure, indicating the placement of the barge with the stationary net and pump suction hose. Trawl sampling strata are shown in relation to the intake opening.
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, . . ,0 Table 1. Sarpling orders of upper' level intake ' openings using stationary net, pump / net, and fine mesh screen. Traveling screen 1B2 was inoperable during the study.
Date Stationary tiet and Pump /tiet Fine Mesh Screen 6 1A1, lA2, 181, 182, 101, ID2 181, 102, lAl 7
1A2, 181, 182, 1D1, 102, lAl- 102, lA2, 1B1. L 8 101, 182, 1D1, 1D2,.lA1, lA2 1A2, 181, 101 9 1B2, 101, 102, lAl, lA2, 1B1 181, lAl,-102 10 101, 102, lAl, lA2, 181, 1B2 1A2, 102, lAl ,
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1 Stationary Net A single. 0.5-m mouth diameter, conical nylon net (2.5 m long, 800-um mesh) was suspended by a cable from a barge (2.4 by 6.1 m) secured to the front of the intake structure directly above an opening (Figure 3). The net was fished approximately 7 m in front of the intake structure openings by the use of a hand-operated winch. A 23-kg weight, attached to the bottom of the circular net frame, forced the frame to hang vertically in the water column and prevented the net from being pulled into the intake trash racks. A General Oceanics Model 2030 flowmeter was mounted in the mouth of the net. Sampling was performed by lowering the net to the bottom of the intake opening and raising it in 1-m stages in front of the 9.4-m high effective intake opening. Upon reaching the level of the of t5e opening, the net was rapidly retrieved. During the first night, the net was raised at 2-min intervals, but this provided smaller than desired sample volumes. The net was raised at 3-min intervals on the remaining nights. The average sampling duration was approximately 27 min.
Fine Mesh Screet
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The fine mesh streen consisted of a single 9-cm deep rectangular wooden frare with a 50.8- by 57.5-cm mouth opening covered on one side with 800-um mesh Nitex netting materiai. The fine mesh screen was attached to a panel of the travelling screens located within the intake bay being sampled (Figure 4a).
The travelling screens were controlled manually to position the fine mesh screen to face the flow of water through' the openings. The travelling screens were operated to raise the fine mesh screen in approximately 1-m stages every 4 min. The average sample duration was 38 min. After the fine mesh screen reached-the level of the top of the intake opening, the travelling screens were rotated to retrieve the sample.
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(b) Filtering apparatus used with CCW tap. Drain used to empty drum when measuring fill times.
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4 Flowmeters could not be used on the fine mesh screen due to space restrictions.
Sample volumes were calculated using the theoretical flow through the intake, 29.5 cm/sec (Duke Power Co. 1978) and the amount of open area in the netting 1
mate rial . The flow through the fine mesh screens was assumed not to experience backwash and to be similar to the theoretical flow.
Pump / Net System The pump / net system consisted of a 10.1-cm diameter centrifugal pump (2270 t/ min pumping capacity at a 0.6-m head), an intake hose, a discharge pipe, and a plankton net. Water was drawn through a 10.1-cm diameter flexible suction hose, discharged through a 10.1-cm PVC pipe, and filt(ted through the net. A Control-otron 183P portable ultrasonic flowmeter was used to reasure the flow through the discharge pipe.
The intake hose was lowered to just above the bottom of the intake opening over the side of the barge as closely to the trash rack as possible and raised in 1-m stages at 3-min intervals (Figure 3). The average sample duration was 30 min.
The collecting net was suspended in the water from the side of the barge with its mouth opening supported above the water surface. The discharge pipe extended below the surface of the water to reduce the mechanical damage to the larval fish. Due to the poor design of the capture net most of the collections from the first two nights were lost or destroyed. A 0.91-m conical net (2.4-m long, 794 um mesh) was substituted for the rest of the study.
Condenser Cooling Water Tap Sample water was carried by a hose from a 7.6-cm gate valve on a condenser
! supply pipe to the sampling apparatus. The water was discharged inta a plank-ton net (800 um mesh) suspended in a 208-1 steel drum with the net opening l
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supported above the water level in the drum (Figure 4b). Discharged water flowed through the net and overflowed the rim of the drum into a floor drain.
Thus, a completely filled drum was provided to cushion the flow of water against the net and minimize sample destruction. Two consecutive samples were taken each night. Samples were collected for an average of 3.2 hr.
Sample volumes were calculated from the time required to fill the drum. The tire was measured twice without changing the flow before each sample was begun.
Trawl fiid-water trawl samples were taken in the intake embaynent for the purpose of providing an esticate of the density and length frequencies of potentially entrainable fish. A 710-tm mesh Tucker trawl (Hopkins et al. 1973) with a 1-m2 effective opening was fished from the bow of a 6.7-m boat modified for trawling. A Bendix flowmeter was used to obtain boat speeds used in sample volume calculations.
Trawl sampling occurred on each night of the study. Samples were taken starting as close to the intake bays as possible and traveling perpendicularly away from the intake. The water column was separated into two strata for trawl purposes.
One stratum extended from the surface down tc the depth even with the top of the intake opening (approximately 4.6 m). The other stratum extended from the top depth to the b'ottom depth (approximately 14 m deep) of the intake opening (Figure 3).
Two trawl tows, ranging from 2 to 5.5 min in duration, were taken at each scratum starting about 30 min after sunset and approximatEly every two hours afterwards, unt'el sampling with the comparison gear was completed. This re-sulted in two sets of tows on the first, fourth, and f1f th nights and three sets 11
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of tows on the second and third nights. Both strata were sampled with separate oblique tows beginning and ending at their upper and lower limits. A double-trip release mechanism held the net closed as it was lowered to the top of the lower stratum. The net was also closed with the release mechanism upon retrieval after all tows.
Sample Handling and Analysis Samples were preserved in a 10% formalin solution at the time of collection.
All larval fish were picked from the sample filtrate and ider.tified to the lowest taxon possible. Individuals were measured for total length and counted by taxa.
Company standard quality control measures were utilized to help prevent the mis-handling of samples and errors in analysis.
Data Analysis Gizzard shad and threadfin shad densities were combined due to cur inability to identify to the species level shad smaller than 21 m. All analyses were performed on shad only, since this group comprised 94% of the collections. Shad larger than 27-m total length that were collected with the trawl were excluded from data aralyses since this was the largest size collected with the four comparison techniques.
Densities of shad were calculated and expressed as number of fish per 1000 3
- m. The density of fish collected in each sample was analyzed statistically.
Because of the modification to the pump / net system, results from the first two sampling nights were felt to weaken the statistical analysis. Data from these two nights were therefore excluded from statistical analysis.
A transfomation (log 10 (density +1)) was utilized to produce equal variances among techniques in order to use analysis of variance (ANOVA). Bartlett's 12
. test was used to test for homogeneous variances. A two-way ANOVA (Steel and Torrie 1960) was perfomed with interaction and unbalanced cell size to analyze
. data, the fixed factors being date and technique. Statistical tests were used to discern which techniques collected densities significantly different from other techniques. These tests were a comparison of the least squares means of each technique Duncan's multiple range test, and a comparison of the mean square error for each technique. In all tests, the level of significance was a = 0.05.
RESULTS Stationary Net Only two shad were collected with the stationary net during the entire study (Table 2). The average volume of water filtered per sample based on flowmeter readings was 29.4 m3 . However, this value may be erroneous, since the theoretical average sample volume was 94.13m , based on the 29.6 cm/s flow rate designed for MNS (Duke Power Co. 1978).
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Fine Mesh Screen Shad were collected in the fine mesh screen each night (2 to 15 fish / night) with a total catch of 46 fish (Table 2). The calculated average sample volume was 91.5 m3 . Estimated mean densities for each night ranged from 32.1 to 53.0 3
shad /1000 m . A peak in mean densities from fine mesh screen samples occurred en 8 June at a time when the mean densities of pump / net and tap collections dropped (Figure 5).
I Pump / Net System Very few shad (7 fish) were collected on 6 and 7 June in pump / net samples, presumably due to problems with the original collection net. After changing nets, collections increased, so that a total of 154 shad were collected during i
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3 Table 2. Numbers and .uean densities (MD)(nomber of shad /1000 m ) of all shad collected with comparison gear and shad less than 28 mm total length collected with a Tucker trawl on Lake Norman, NC, June 6 through 10, 1982.
NET SCREEN PUMP TAP UPPER TRAWL LOWER TRAWL DATE NO MD NO MD NO MD NO MD NO MD NO MD 6 0 0.0 2 -(* 1(b) _(c) 5 55.4 164 195.3 27 27.9
, 7 0 0.0 8 34.0 6 (b) _( c) 12 182.0 590 410.5 190 1. 7 8 1 4.7 15 53.0 38 91.1 10 103.0 659 536.4 75 43.1 9 1 7.5 11 43.0 80 196.9 25 346.1 511 666.1 86 76.4 10 0 0.0 10 32.1 36 82.4 4 82.0 279 406.5 134 85.7 (a) Unable to calculate volune.
(b) Number not considered valid due to malfunctioning equipnent.
(c) Density not calculated on invalid data.
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6 7 8 9 10 l DATE Figure E. Plot of mean densities of larval shad (<27 mm) collected with stationary net, fine mesh screen, pump / net, condenser cooling water tap, and trawl on Lake Norman, NC, 6-10 June 1982.
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the next three sample nights. Mean densities ranged from 82.4 to 196.9 shad / ,'
1000 m3 (Table 2). The pump / net system filtered an average sample volume of 65.3 m3(Appendix 1).
Damage to' larval fish collected was greater in pump / net collections than in the collections by other techniques. The only larval fish totally unidentifiable due to damage were collected with the pump net system.
Condenser Cooling Water Tap A total of 56 shad were collected using the tap. Mean densities ranged from 3
56.4 to 346.1 shad /1000 m per night peaking on the second and fourth sampling nis5ts (Table 2). Mean densities of tap collections were numerically higher each night than the mean densities of other comparison technique collections except on 10 June (Figure 5). Volumes of water filtered by the tap averaged 37.9 m3 per sample, lower than the pump / net and fine mesh screens (Appendix 1).
Trawl i Mean densities of trawl samples taken in the upper stratum ranged from 195.3 -
3 to 666.1 fish /1000 m . Mean densities of the lower stratum were much lower with a range of 27.9 to 85.7 fish /1000 m3. The mean densities of the total trawl collections, both strata combined, ranged from 123.6 to 371.2 fish /1000 m3 (Table 2).
Length-Frequencies The range of total lengths of shad collected by all comparison techniques was 5 to 27 m. Only the pump / net and tap methods collected larval fish to 27-mm total length (Table 3). Of the fish collected with the mid-water trawl, only 5.6% were larger than 27 m. The pump / net technique collected a greater number 16
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. . Table 3. Length frequencies of shad collected with the pump / net, tap, and trawl, and weighted mean lengths of shad < 27-m in length. Fish damaged too badly to measure were excludeif.
1-nn NUMBERS COLLECTED LENGTH CLASS PUMP / NET TAP 10TAL TRAWL 5 5 0 0 6 8 1 1 7 11 3 11 8 11 2 45 9 10 2 78 10 16 5 116 11 13 1 105 12 12 3 71 13 11 6 77 14 22 3 65 15 11 4 76 16 3 1 84 17 3 1 82 18 2 0 94 19 3 1 97 20 2 2 174 21 1 1 183 22- 5 7 272 23 2 7 266 24 1 3 282 25 0 0 247
-26 0 1 183 27 1 2 106
>28 0 0 153 Weighted Mean Length of Shad < 27 m 12.1 16.4 19.8 17
I of smaller fish than the tap technique. Weighted mean lengths for the pump /
net, tap, and the trawl collections were 12.1 m.,16.4 mm, and 19.8 m, respectively.
Statistical Analysis The effects of data and technique on the mean densities collected and inter-action between technique and date were tested using a two-way ANOVA. ANOVA indicated that densities collected with each technique varied similarly among dates (p=0.83. F=0.46) and were not affected by dates (p=0.83 F=2.65). How-ever, the effect of technique on density was significant (p-0.0001, F=49,24)
(Table 4). The mean densities of the pump / net and tap collections were not significantly different. Stationary net and fine mesh screen collection densities were significantly different from each other, as well as from the pump / net and tap methods (Table 4).
DISCUSSION The low number of fish (2 fish) collected with the stationary net was not l unexpected. The inefficiency of stationary nets in low flows similar to _
the intake at MNS has been reported (Graser 1977; Leithiser et al.1979).
Net avoidance (Bowles and Boreman 1978; Leithiser et al.1979), clogging of the net with debris (Ecological Analysts 1976), mutilation of collections (Ecological Analysts 1980), and inaccurate flowmeter readings due to low flow velocities (Ecological Analysts 1979a) are other problems with using stationary nets. These disadvantages more than offset the advantages of simple operation and low equipment costs.
Improvements to the technique, such as more accurate flowmeters, could be made, but net avoidance would remain an obstacle. Based on the results of this study, r
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4 Table 4. Results of ANOVA, Duncan's multiple range, and least squares 3 means tests on transformed data (lo910 of density (no./1000m )
of larval shad plus 1). Data from the pump / net (P), tap (T),
fine mesh screen (S), and stationary net (N) collections at MNS, 6-10 June 1983. Techniques not connected by underscores are statistically ditferent. ns - not significant, a = 0.5.
ANOVA Source df f p>f Date 2 2.65 0.083"5 Technique 3 49.24 0.0001 Technique & Date 6 0.46 0.83ns Error 39 Duncan's N 6 18 9 18 Mean (log (density +1)) 4.79 4.51 3.31 0,40 Technique _
T P S N 3 3 3 3 3 3 3 3 3 3 S E 3 S E E E 3 3 a a a E 3 3 E E R R R S B E S Least Squares Means Technique N P S T LS Means (log (density +1)) 0.40 4.51 3.31 4.79 Prob > 'T' H:g LS Means (1) = LS Means (J)
J I N P S T N -
0.0001 0.0001 0.0001 P -
0.02 0.61 S -
0.02 T -
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o stationary nets fished in front of the intakes are unsatisfactory for assessing entrainment.
Densities from the fine mesh screen collections were higher than those from the stationary net, but lower than either the pump / net system or the CCW tap methods (Tables 2 and 4). Although no backwash was assumed in calculating sample volumes, backwash was probably present and together with net avoidance likely limited densities in the samples.
Data interpretation was hindered by the inability to attach a flowmeter to the screen. The accuracy of using the theoretical flow rates to calculate sample volumes is affected by unknown screen and intake hydraulic characteristics, factors that greatly influence the accuracy of the sampling gear (Bowles and Boreman 1978). Without accurate sample volumes, reliable data analysis is impossible.
Other conditions disfavor using the fine mesh screen. Operation of some of the traveling screens was not possible during some nights due to maintenance.
Also, in addition to the person conducting the sampling, a licensed operator was required by regulatory agencies to actually control the traveling screens.
Securing assistance often resulted in delays which increased the manhours (approximately 12 manhours) required for a sampling night. The only advantage of using the screen is its low cost which cannot compensate for its disadvantages.
Entrainment sampling with fine mesh screen were judged to be unsatisfactory.
The results of the pump / net system and the tap sampling were the most similar of the compared techniques. The mean densities of the tap collections were somewhat numerically higher than the mean densities of the pump / net collection on each sampling date, except 10 June (Table 2). However, the densities of the ,
two collections were not significantly different (Table 4).
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Results from the trawl data indicate the densities of larval fish in the lake in the vicinity of the intake structure varied throughout the sampling period.
Mean densities from the pump / net and tap collections a h varied, showing some similarities to' changes in the mean densi ics t from upper and lower trawl samples but not totally following the changes in either. Reasonable assumptions can be made that larval fish are entrained from both strata and the proportions of total entrainment derived from the strata vary. The possibility that larval fish from the upper stratum are entrained, even though a curtain wall in the intake structure prevents direct withdrawal of surface water, is supported by the inability of the densities of shad collected in the lower stratum to account entirely for the densities of shad collected with the pump / net system or the tap (Table 2). The proportion of larval fish entrained from the upper stratum could be expected to vary over time and space, due to changes in fish distribution.
The pump / net system could possibly fail to sample entrainment from the upper stratum; if, for instance, the entrainment was occurring at an opening not being sampled at the time. The tap would not fail to sample entrainment from the upper stratum due to its sampling all operating openings simultaneously. If a homogenous mixture of entrained fish is assumed to exist within the CCW pipe, l '
l the tap sollections may be more representative of actual entra: ent than the pump / net collections.
l The pump / net syst'em and the tap also differed in length-frequencies. The weighted mean length of the pump / net system collection was smaller than that of the tap or trawl collections, which would indicate avoidance of the pump / net system by large larval fish (Table 3).
The advantages of the pump / net system include the ability to measure sample volumes reliably, the potential to be portable and automated (Ecological Analysts 1979b), and less avoidance than stationary nets (Leithiser et al.1979). The 91
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disadvantages of this method include large expense (approximately $1000-$6000 ,
for pump alone), heavy and difficult equipment to handle, mechanical mal-functions, need of mechanical abilities to maintain operation, and mancower requirements (approximately 16 manhours per night).
The CCW tap advantages included sampling an Osumed homogenous mixture of fish actually entrained, low expense (less than $50 for assembly and operation),
simple operation, operation unaffected by weather, and low manpower require-ments (approximately 0.5 to 0.75 manhours per sample). Furthermore, sampling could be perfonned by plant personnel. Disadvantages of the tap method include difficult installation due to space and access restrictions, and special train-ing and security clearance required a*. nuclear plants.
The tap apparently sampled more efficiently than the pump / net system. The ttp was also much easier, mechanically more reliable, and less expensive than the pump / net to use. Therefore, the tap was judged to be the most suitable of all techniques compared for larval fish entrainment sampling.
REC 0FNENDATIONS, On the basis of this study, the condenser cooling water tap should be used where possible to assess entrainment at Duke Power Company plants. This method worked as efficiently as any other method tested, as well as being reliable, practical, and cost effective.
Several modifications could be made to improve the operation of the tap sampling gear. The net and drum should be as close to the tap as possible and secure fastenings should be provided on both the gate valve and the drum assembly for the connecting hose. The use of a smaller mesh would assist in collecting smaller larvae. To reduce human error, a weir or a flowmeter should be used instead of the method used in this study.
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-. . - . . - ~ . . . - . - - . - . . _ - . . - _ _ . . .. ., ,
t ACKNOWLEDGMENTS Gene E. Vaughan provided much assistance with preliminary study and equipment design. Steven R. Johnson and J. Robert Silet tovided guidance with the study design. Larry E. Miller and John G. Alexander assisted in equipment preparation. B. Kim Baker, Richard A. Hansen, Michael C. McInerny and other members of the Fish Sub-Unit performed sampling. Sherry D. Moore, W. Mark Rash, Sandra L. Sherer and W. Greg Cope analyzed the samples. Michael C.
Zadrow provided the statistical analysis. Jo Anne Brotherton performed the typing.
I t
I l
l l
l l 23
LITERATURE CITED, Bowles, R. R. and J. Boreman. 1978. Factors affecting accuracy of icnthyo-plankton samples used P "ower plant entrainment studies. U. S. Fish and Wildlife Service. FWS, Bh 76/20.7. 12 p.
Duke Power Company. _1978. Mc6uire Nuclear Station: 316(b) predictive study of impingement and entrainment. Duke Power Company, Charlotte, NC. 42 p.
Ecological Analysts. 1979a. A review of entrainment study methodologies:
abundance and survival. Prepared for the Empire State Electrical Energy Research Corporation, New York, NY. 45 p.
Ecological Analysts. 1979b. Ichthyoplankton antrainment survivel and abund-ante sampling study - research and development of gear anc methods. Pre-pared for the Empire State Electric Research Corporation, NY, NY. 178 p.
Ecological Analysts. 1980. Potrero Power Plant cooling water intake structures.
316(b) Demonstration. Chapter 3 entrainment. Prepared for Pacific Gas and Electric, San Francisco, CA. 74 p.
Elder, J. A. , J. W. Icanberry, D. G. Smith, D. G. Henriet, and C. E. Steitz.
1979. Assersment of a large-capacity fish pump for sampling ichthyoplankton ,
for power-plant entrainment studies. Calc 0FI Rep., Vol. XX. pp. 143-145.
Graser, L. F. 1977. Selectivity of larval fish gear and some new techniques for entrainment and open water larval fish sampling. In: Proceedings of the First Symposium on Freshwater Larval Fish, L. L. OTHisted (ed.).
February 1977. Southeastern Electric Exchange, pp. 56-71.
Hopkins, T. L., R. C. Baird, and D. M. Milliken. 1973. A messenger-operated trawl. Limnol . Oceanogr. 18:488-490.
Jude, D. J. 1975. Entrainment of fish larval and eggs on the Great Lakes, with special reference to the D. C. cook Nuclear Plant, southeastern Lake Michigan. h: Third National Workshop on Entrainment and Impinge-ment. L. D. Jensen (ed.). Ecological Analysts, Inc. Melvill, NY.
425 p.
Kelso, J. R. M. and J. K. Leslie. 1979. Entrainment of larval fish by the Douglas Point Generating Station Lake Huron, in relation to seasonal succession and distribution. J. Fish. Res. Board Can. 32:37-41.
Leithiser, R. M., K. F. Enrlich, and A. B. Thum. 1979. Comparison of a high volume pump and conventional plankton nets for collecting fish larvae entrained in power plant cooling systems. J. Fish Res. Board Can. 36:81-84.
Ma rcy , B . C . , J r. 1975. Entrainment of organisms at power plants, with emphasis on fishes-an overview, h: Fisheries and Energy Production: A Symposium, S. B. Saila (ed.) Health and Company. Lexington, Mass. 300 p.
McGroddy, P. M. and R. L. Wyman. 1977. Efficiency of nets and a new device for sampling living fish larvae. J. Fish. Res. Board Can. 34:571-574.
24
i McInerny, M. C. 1980. Impingement and entrainn..iit of fishes at Dairyland Power Cooperative's Genoa site. Univ, of kfrronsin - Lacrosse. M.S.
Thesis, 111 p. l Olmsted, L. L. and W. D. Adair. 1981. Protection of fish larvae at two south- .
eastern power plants using intake skinner walls. Proceedings of the Workshop on Advanced Intake Technology. April 22-24, 1981. San Diego, CA. Hosted by Southern California Edison.
Schubel, 3. R. and B. C. Marcy, ur. (eds.) 1978. Power plant entrainvent: !
a biological assessment. Introduction. Academic Press; New York, pp.
1-18. ,
1 Siler, J. R. , R. E. Lewis, B. K. Baker, G. E. Vaughan, and R. A. H6nsen. 1981.
Chapter 10. Fisn. In J. E. Hogan and W. D. Adair (eds.). Lake Nonnan Summary. Duke Pro. rTompany, Production Environmental Services, Huntersville,-N. C. pp. 411-460.
Snyder, D. E. 1975. Passage of fish eggs and young through a pcmpt orage generating station. J. Fish Res. Buard Can 36: 81-84.
Steel, R. G. D. and J. H. Torrie. 1960. Principlet and procedures of statistics.
- McGraw-Hill; New York. 481 p.
Tomljanovich, D. A. , J. H. Heuer, C. W. Voightlander. 1977. Investigations on the protection of fish larvae at water intakes using fine-mesh screening. Div. of Forestry, Fisheries, and Wildlife Development. TVA Technical Note B22. 53 p.
4 25
j- , ,,
1 e.
4 j-4 7
APPENDIM 1. VC8 IP1ES t M e e 31, 009ATICNS(SEC3, AND ACTUAt NUMBERS AND DENSITIEStNC. CF FISH /1000 M**3) CF LARVAL FISH SAMPLED WITH A STATIONARY NE T, FINE MESH SCREEN, PUMP / NET. AND CCW TAP 5 FROM 6 THRCUGH 10 JUNE 1982 IN THE VICINI TY OF THE PtCGUIRE NUCLEAR STATICM IMTAKE. ABBREVIATIONS USED ARE: N= NET, P: PUMP,
$sSCREEN, T= TAP, NC: TOTAL NUMBER, AND DEN:DENstTY. WHERE REPLICATE EQUALS . NC REPLICATE EXISTS. PERICOS IMOICATE MISSING 3ATA. LOCATIONS Al-D2 REPRESENT THE DESIGMATICN j NUMBER OF THE BAY SAMPLED. LCCATICN TAP WAS THr TAP VALVC
- INSIDE THE STATICM.
q --------------------------- DAYe6 TECHNIQUErN LOCATICM*A1 REPLICATE =. VOLUME =87 DURATION =1080 ----------------------------
I 1
TAMON NO DEN
} O O
}
i 4
1
DAYS 6 TECHNIQUE =N LOCATICN=AE REPLICATE =. VCLUME=19.9 DURATICM=1130 ---------------------------
TAXCM NO DEN O O 4
J i TECHNtJUETN
DAYe6 LOCAYlCMuB1 REPLICATE *. VG UME= 1. 3 DURATICNe1127 ---------------------------
i, j TAXSN NC DEN i
O O i
i.
---.-------------.---------- DAYe6 TECHNIQUE =N LOCATICMsB2 REPLICATE =. VOLUMEr. DURATICNstoss -------- -------------------
TAAON NO DEN
, O .
J' 4
4
.------------- DAY =8 TECHNIQUF=N LOCATICM=D1 PEPLICATE=. VOLUPE=3.4 DURATICNett33 ---------------------------
, . -= < - - - -
9 TQXCM NO DEN t
O O -
4 k
-------------- DAY =6 TECHNIQUE =N LOC A i s tm=G2 REPLICATE =. VOLLME = 10. 8 DURATION =782 ---------------------------
i TAMON NO DEM O- O
, ---.----..--.-...-.......- DAYe6 TECHNIQUE =P LOCATION *Al REPLITATE=. VetteE=53 DURATicN=1440 ----- ----------------------
i.
3 TF.XCN NG DEN LEPCMIS SPP. 1 18.8679 L
I 4
s I
1 t
7 I
.-1 )
i t
1 I
I i
i l
1 y
t b
e l
- e >
r s m . - ,, , - _ - - - . -
..--.--e-- . w ..---
i 1Il l 0 1 0 0 4 4 4 0 2 4 0 4 6 9 1 1 t 2 1 r e = 1 =
N N H = N C C C H C S P . I I I C I R A P T T T I T E DT EP
- E A A A T A BE R UCEN V R R R A R M L WI P R T C L U U U R U UPC U = E4 I A O D D U D N AM C CGP HWlc 2. V D LS DM , O P A N T N A 6 5 1 1 UHA EE .I i . .
9 .
T S H NY >. 2 9 0 4 9 CI = T S .
3 3 5 A F T
.T E F NI S C OERT E
=
E
=
E
= E M
= 6 E
D L N O: N I E M M M J M
NA / EER H S U U U U U A vPY R DE T A L L 5 L C L
,fAf MT A e P W O O 6 O V O UI N T V V N 8 V V
) LPNDE N P E 3 C I E D .EA D .
E F .CS S S T N 3 N . N S CNI UDT E M. . E O .
2 _
E O = E C .
I EV NS R MC = D = = C E D =
S ) E S AI P CI E E E T E N 3 REN X E I T T T T A T O* C HO .ER T A A A A C A I
N 1 I C L O I A HNA BT DO L N O t L N O P N O L R 0SI I MA - LE P P P E P U0E VUC1 H E E E R E R R R R D0 M2ENI 1 8 R LA .
T N
D E N N
./ E9 B L PS DE 1
H N1 BA E N ED O I O 1 C 3 SI A T RCLI 2 X 1 F 2 X D R 2
= I FE O I P S A A E N I 8 A e A D
- F N T OT M N e T = C V - T N T S M .U = NA A I N N R N N O N I FT J E . C CS O C A E O I C S CE K N O I I T C I T I E N0A L Y T T I T A T M . 1 T ,S A A A N A C A UCY N P L B C C U C C C L N R HI A A O O O L O OI A G VS N U N = QT H T UA. E L L L L E OOCT E A T I I R I D P
, T T H T ,E F P P P = P I A T A N T G O * = = E e
. 1 S T T EA N I E E E U E N S6SE C R 1 U U C U X E R l. $ E 1C Q Q f Q I DA
- 1RC l $ B I I I N I D CA SP l M N N N H N NDHR E = E i U f H H H C H EN T F L%R N C C C E C P A I C E E E T E P W U T T T T A N 6
6 6 6 = 8
= = Y
y r Y A Y A A A D A D D D D
I I .
~
~
TOCON 88 0 DEN 4
4
, ............ ............... DAY =6 TECHNI Qt E= S LOCATION =Al REPLICATE =. VCLUPTE s . DURATION =. ------------------------------
TAMON NO DEN DCROSOMA SPP. 1 .
DOROSOMA CEPEDI ANUPt i .
\
......................... DAY 6 TECHNIQUE =S 1.0 CATION Bf REPLICATE =. VOLUPTE = 91. 2 Otp A T
- CN = 22 60 - - - - - - - - - - - - - - - - - - - - - - - - - - -
TAXON NO DEN O O i
f l
a I
s n
9 e e n. . __ - - - m -, > , , _ - - , -
ftlIilf!?6!Ij kir[ .!!;!i[i 2)S *!- l $ ;[i[ ,{[i :
l i!' ;!F 9' I ' ii :'5(
( _
[ - -
- 0 o .
c 6 O s 0 7 s 2 t .
0 s= 5 t
G t
s . .
1 t
~
2 N e e =
= e N N N N t C C C S P ,
C t I I _
R A t A ' T T E DT E
- P E f R
- A A S E R U EE M V A U f ? a M L Wf P R T CL R D u U U UP C U T E A I A U D D D N MC OP H CT V D A C WI A LS DM , ON P 7
- M T M GA .
6 8 4 UH A E E . I t T 4 0 .
T S H N Y S 6 6 7. 3 9 CI , T
- T SEE e
- 3 E 3 A F T M I OD H E E 9 3 = * =
E r S C T M M e4 E E D LN C : NI E U J N 4 7 M '
P m N A / EER H S L tL E 9, 4 U 5 t U .
A V P Y R DE T A O C D L 1 L L R M T A r P W V V 26 O N 9 C C
. A UI N T 3 1 V E ? V V
C E D .E A 3 E F , C S S S T . .
N 1 5 N S CN I I DT E L N
- E O = 2 E O .
t E V N SR MO E D E O = e D =
S 1 E S A s PCI T T N 21 E E E N3 R E N m EI T A A T T T C
- C HC I ,ER T A C C A C A A I
- ST R A T I I C N 2 C C T M T E E2 C S L C L I I O I
- A HN A BT 0O P N O P N M L L N O L 4 t
8 0S1 3 M A - L E E E O P U P P P U 0E % H R P M P N E E E O0M2E1 8 R Mir1 t L .
T A T
S A I
P P
P P _
9 B LP S uE t A D P N
)
3 % I
/N1 H B A E N E D A T R OL I 2
0 C
R P
A M E U F P M S
1 C
N 2
- l F E C I P S : A - T S E A C A A A A
- T 2 M , U . r NA A I C N P = A C N N , .
t F T J E C C S I -O C A N T S C O ,
3 OE F N C T I DM C I I E N 3 A L Y A T O I w T T M . 1 T ,S A C A S T v A A UC Y N P L O C O A v C C L N R HI A A .B L C D C C C Ct A G T U A E L C C L L
- S N UN = QT H
' D L E OCOT E A T I l R I D S T ! HT ,E F T N N I
A T A NT G C E s T = e 1 S T T E A N U E = E E N S6 S E CI R Q U E U U M E P I S E I Q U Q Q .
R DA MR C LS B N I O I I O OA S, P I M H N N N
= E MU t
NDHR E C H N H H -
E N T F L S P N E C H C C PA I C T E C E E P W U T E T T A N T 6
e 6 7 7 Y v 6 e =
A Y r v y D A Y A a D A D c D
i ii14j
- 1i
W e - -
- e 3 5 6 3 4 6 1 1
N N i
c O I
T T 4 A R R U U D D 6 2 2 9 4 3
E E M M U U L L O O V V N N t t
E O . E O . E O D = D = D E E T T A A C C O I O I N O L N O t O
' O P P E E P R N N N C O O R 1 M 2 M O B A B A V = T t T N N O O I I T T A A C C C O L L N N
i E f
t U O Q I I N N H , H .
C C E E T T 7 7 z z Y Y A A D D
^
4
- APPENDIX 1. VCLUMESIM*=%), DURATIONSISECl, AND ACTUAL NUMBERS AND DENSITIESINC. CF Fl31/1000 Me*3) CF LARVAL FISH SAMPLED {
WITH A STATICNARY NET, FINE MESH SCREEN, PUMP / NET, AND LCW TAP FROM C THRCUGH 10 JUNE 1982 IN THE VICINITY Cr THE MCOUIRE
- NUCLEAR STATION INTAKE. ABBREVIATICMS USED ARE
- N = NE T , P= PUMP, .
t S=6CREEN. T= TAP, NC=TCTAL NUMBER, AND DEN = del 3ITY. WHERE ;
REPLICATE EQUALS NC REPLICATE ExtSTS. PERIODS INDICATE f L
MISSING DATA. LCCATIONS Al-D2 REPRESENT THE DESIGNATION NUMBER CF THE BAY SAMPLED. LCCATION TAP WAS THE TAP VALVE INSIDE THE STATICN. r l
Dave 7 TECHNIQUE =N LCCATICN=D1 RIPLICATE=, VOLUME =35.7 DURATION =1648 ---------------------------
1 TAMCN NC DEN O C i I ------------------------- DAY =7 TECHNIQUE =N LCCATION=D2 REPLICATE =. VOLUME =26.9 DURATICN=1643 ---------------------------
1 4
TAXON NC DEN 4
PERCA FLAVESCENS 1 37.1747 i-
) !
i !
l
...-..................... DAYe7 TECHNIQUE =P LCCATION=A1 REPLICATE =. VOLUME =61.4 DURATICN=1690 ---------------------------
s TAMCN NC DEN 1
0 0 i l
3
- ..--...-......-...-.---. DAYe7 TECHNIQUE =P LCCATICN=A2 REPLICATE =. VOLUME =51.6 DURATICN=1441 --------------------------- 6 TAxCN NC DEN C O
.....-......-......-.... DAY =7 TECHNIQUE =P LOCATION =B1 REPLICATE *. VCLUME=68.1 DURATION =1920 ---------------------------
i e I
i 1
^
TADOM e NO DEN -
DOROSOMA SPP. 3 44.0529
.................... ..... DAYm7 T ECHNI QtF.s P LOCATION =B2 REPLdCATE=. VOLUr1E = 67. 7 Ds> RATION =1920 ---------------------------
TAXON NO DEN i
!. - UNIDENTIFIED 2 29.5421 1
.......................... DAY =7 TEchtGUE=P LOCAT I ON = DI REPLICATE =. VOLUME-65.8 DURATION =1920 --------------------------- l i
1 AXON NO DEN f 7
UNICENTIFIED 1 15.1976 r
L i
s i
4 P
t s
i 4
k 4
i 1
I N
i b
i P
9 #
g -+-.i g
~,i a.7
. . .e 1
4 APPENDIX 1. VOLUMEstM*=3), DURATION $tSEC), AND ACTUAL NUMBERS Al4D DENSITIESEND. OF FISH /1000 Ma*3) CF LARVAL FISH SAMPLED WITH A STATIONARY NET, FINE MESH SCREEN, PUMP / NET, AND CCW TAP FROM G THROUGH ?O JUNE 1982 IN THE VICINITY OF THE MCOUIRE NUCLEAR STATION IbfAKE. ABBREVIATIONS USED ARE: N= NET, P= PUMP, j
3,= SCREEN. T= TAP, NO= TOTAL NUMBER, AND DEN = DENSITY. WHERE
] REPLICATE EQUALS NO REPLICATE EXISTS. PERIODS INDICATE
- MISSING DATA. LOCP TIONS Al-D2 REPRESEN T. THE DESIGNATICM NUMBER OF THE BAY SAMPLED. LCCATION TAP WAS THE TAP VALVE INSIDE THE STATION.
DAYS 7 TECI:NI QUE=S LOCATION =A2 REPLICATE =. VOLUME =76.8 DUR A T I ON = 19 20 - - - - - - - - - - - - - - - - - - - - - - - - - - -
TAXON NO DEN DOROSOMA SPP. S GS.1042
DAY =7 TECHNIQUEa% LCCATICN=B1 RE*LICATE=. VOLUMFred DUMATICM=2100 ----------------------------
TAXON NO 7EN l PERCA FLSVESC Ei;O 1 1".9048
.--... ..____.-.. ...----- DAY =7 TECHNIQUE =S LOCATION =D2 REPLICATE =. VOLUME =89.6 DURATICN=2040 ---------------------------
, TAXON MO DEN l
DCAS$CMA SP8'. 3 36.7647
DAY =7 TECHNIQUE =T LCCATION= TAP REPLICATE =1 VUttiME=40.8 DORATicN=10440 --------------------------
TAMCN NO DEN DCPCSOMA SPP. 2 49.0198 DO*0$0MA CEPEDIANUM 3 73.5294
.------........ ---------- DAY =7 TECHNIQUE =T LOCATION = TAP REPLICATE =2 VOLUME =29 DURATION =7980 ---------------------------
<s . .
e TAXON NO DEN DOROSONA SPP. 5 172.484
'DOROSONA CEPEDIANUM 2 68.966
DAY =S TECHNIQUE =N LOCATION =A1 REPLICATE =. VOLUME =15.2 DURATION =l646 ,
TAXON NO DEN O O
DAYe8 TECHNIOUE=N LOCATION =A2 REPLICATE =. VOLUME =35,5 DURATICN=1644 J
TAMON NO DEN l DOROSONA SPP. 1 28.169
, 8*
~
por ~
APPENDIX 1. VOLLMESIM*=33, DURATIONSISEC). AND ACTUAL NUMBERS AND DENSITIESINO. OF FISH /1000 M= =31 OF LARVAL FISH SAMPLED WITH A STATIONARY NET, FINE MESH SCREEN, PUMP / NET, AND CCW TAP FROM 6 THROUGH 10 JUNE 1982 IM YHE VICIMITY OF THC MLDUIRE NUCLEAR STATION INTAKE. Af3BREVIATIONS USED ARE: N= NET, P= PUMP, S,* SCREEN. T= TAP, NO= TOTAL NUMBER, AND DEN = DENSITY. WHERE REPLICATE EQUALS . NO REPLICATE EXISTS PERIODS INDICATE MISSING DATA. LOCATIONS Al-D2 RE* RESENT THE DESIGNATICM NUMBER OF THE BAY SAMPLED. LOCATION TAP WAS THE TAP VALVE INSIDE THE STATION.
DAY =8 TECHNIQUE =N LOCATION =B1 REPLICATE =. VCLUME=37 DURATION =14GS ---------------------------- I i
TAXCN NO DEN O O
.--...---.----.----------- DAYe8 TECHNIQUC=N LOCATION =B2 REPLICATE =. VCLUME=23.8 CURATICN=1440 ---------------------------
, TAXON NO DEN 4
G O DAY =8 TECHNIQUE =N LOCATION =DI REPLICATE =. VOLUME =32 DURATl0N=1639 ----------------------------
TAXCN NO DEN l
0 0 DAY =8 TECHNf00E=N LOCATION =D2 REPLICATE =. VOLUME =31.3 DURATICN=1641 --------------------------- l y a *M NO CEN O O L
DAY =8 TECHNtolfE=" LOCATION =A1 REPLICATE =. VCLUME=70.3 DURATICN=1921 ---------------------------
ll il l\ '
~ - -
3 0 2 6 9 8 1 1 2 -
N N C C I I T T A A R R U U D D 6 3 0 7 7 6
E 9 4 E M 7 6 M 3 U N 41 U 28 4 L E .
L 4 8 N 7 C D 7 4 O N 9 5 E 6 V 21 V E 2 8 D 1 D . .
2 4 4 4 7 1
E O E T N 91 T O A A O N 3 C C N S1 I I
" L L
- P N .Z P E C PS E R X P N R . D P A S E P E P T N P l S A E S r N 2 MT 1 N I O A A OE B C A T X M = S P = X MN 4 O N O N A 0E T S C R A O T 5 D O I OM I O I R T DO T R N O A S A OU D C O C D O R O L O L D
P P
E E U U Q Q I I N . N H H C C E E T T 8 8
= s Y Y A A D D
~ - .
I l1 llll l
. e .**
4 pm -
.t APPENDIX 1 4
VOLUMESIMes3), DURATIONSCSECI, AND ACTUAL NUMBERS AND DENSITIESINC. OF FISH /1000 Me*31 CF LARVAL FISH SAMPLED g WITH A STATIONARY NET, FINE MESH SCREEN, PUMP / NET, AND CCW TAP ,
FROM 6 THRCUGH 10 JUNE 1982 IN THE VICINITY OF THE NCOUIRE NUCLEAR STATICN I N TAK E. ABBREVIATIONS USED ARE: N= NET, P= PUMP, S=pCREEN, T= TAP, NC= TOTAL NUMBER, AND DEN = DENSITY. WHERE REPLICATE EQUALS . NO REPLICATE EXISTS, PER!CDS INDICATE MIS $1NG DATA. LOCATIONS Al-D2 REPRESENT THE DESIGNATION NUMBER CF THE BAY SAMPLED. LOCATION TAP WAS THE TAP VALVE INSIDE THE STATION.
1
DAY =8 TECHNIQUEzP LOCATIMNeB2 REPLICATE =. VOLUME =69.1 DURATIONzi92I ---------------------------
, TAXCN NO DEN l DORCSOMm SPP. 9 130.246
DAYe8 TECHNIQUE =P LOCATION =D1 REPLICATES. VOLUME =69.G DURATICNz1922 ---------------------------
TAMON NO DEN J
DORCSCMA SPP. 1 14.3678 1 14.3678 1
) ------------------------ DAyr8 TECHNIQUE =P LCCATION=D2 REPLICATES. VOLUME =69.9 DURATICM-1921 ---------------------------
i TAXON NO DEN O O.C00 DORCSOMA SPP. 8 114.449 j DORCSCMA CEFEDIANUM 1 -14.306 LEPCMIS SPP. I 14.3C6
DAYe8 TECHNIQUE =S LOCATION =A2 REPLICATE *. VOLUME =96 DURATIONr2400 ----------------------------
TArCM NC DEN i DORCSCMA SPP. 7 72.9167
_.__________________o
a DOROScr1Q CEPEDIN 3' 31.2500
~
i 1 .
1
.......................... DAY *8
- TECHNfGUE=3 LOCATIONSBi REPl.1CATE3 VOLUME =91.2 DuoATION
- 2260 ---------------------------
l 1
TAXON NO DEN
- i '
i DOROSCMA SPP. S 54.6246 i
i i
........ ................-- DAYe8 TECHNIQUE =S LOCATIONeD1 REPLICATE =. VCttJMEr 84 DtfR A T I OlJ e 210C - - - - - - - - - - - - - - - - - - - - - - - - - - - -
1 1 *
- TAXON 98 0 DEN o o -
a 1 4
I i
1 P
i 4
i i
?
I, I
- ?
r 4, .
t i
i s
i 0
i k
e I
k 1
p S @ -
e e l
, , , - .-- -- v. . . . - , , .. , . - - -. , --
k l ! [! ([(; i( ! ,t6[IE s, r !! i!r;- h l l f[iif ! I e, - - - - -
e - - - - -
e 0 0 2 2 3 1 1 1 8 3 4 6 2 4 6 6 4 1 1 1 1 1
= = =
N N N N N O C O C c S P , I I I I i R A P T T T T T E DT EM E A A A A A B E R UEE N V R R R R R ML W t P RT CL U U U U U UP C u=E A I A D D D D D _
NMCGP H CT V A C WI A LS DM , DN P A N T NG A 2 4 2 4 6 ,.
UHA EE .I I T , .
T S HN Y S 9 3 2 3 8 CI , T = T SE E 4 4 2 3 3 A F T NI OD H = 6 0 = 5 = = =
EF S C T E 7 5 E 1 E E E DL N O: NI E M N 26 M N 4 M M M N A / E E R HS U E . U E 0 U U U A V P Y R DET A L D 2 0 L D .
L 3 L L R MT A = P W O 4 4 O 3 O 4 O O
, A UI N T V 1 V 2 V N 0 V V
) LP NDE N P E C I E D . E A D 3 EF . CS SS T . 4 N S 0 NI UDT E N 1 2 . .
E O .
I E V N SR N O = O = O = = D =
S 1 E S AI P O I E N 7 2 E N 1 E E E N 3 R EN X EI T T T T T T O
- C HO , ER T A A A A O A A I
- ST I R A T C C C N 1 C C _
T M .T EE2C S I i I I O I m
.p A HNA BT D O L N .
M L M L L N O L R 0S I I MA - LE P O PU P U P P P U0 E T VUCl H E X P N E N E E E D0I 2E NI A T R A S A R A R ,.
R R .
P 4 6 R L . T I I
, / E 9 B LPS DE A D D P M -
) H N1 BA E N E D ME E S O 3 S I A T R O LI P OP P N F 1 N 2 X t
- I F E O I P S A S E A O E A O A A A B
- F N T OT MN T O C T X C = X M = T =
M , U . = NA A I = R = A N A C N N I F T J EO C S N O A N T A O T S O O SOE K N . O O DM O M I C R
I T
I T
E M 0A L Y I S I C T M . 1 T , S A T S T S A O A A UO Y N PL .B A O A O C D C C C R C R C O O LNR HI A A . E O( A G VS N U N = QT H T UA O L
O D
O L
O D
L L L E COOT !E A T I I R D T T HT . E F N N N
. I A T A NT OO T T = = =
1 S T T EAN = = E E E N S 6SE C 1 R E E U U U X E R I $ E U U Q Q Q I D A MR C LS B Q Q I I I D OA SPI M I I N N N N D HR E = E MU N N H H H E NT F L S, R N H H C C C P A I C C C E E E P W U E E T T T A N T T 9 9 9 8 8 z z s
= e Y Y Y Y Y A A A A A D D D D D .
~ - - . .
I 3, ! .a
I tLIiL :
li. k k k. ,
9
- - 9
- - 9 e
- - e
- - y
- - m 8 4 5 4 4 6 1 1 e =
N N O O I I T T A A R R J
t tJ O D 6 3 5 3 3 2
E E m m t
t_
t l o o V V N N N E
D O .
E 0 . E o
- D = D E E T T A A C C O I O I O N O L N 0 L N O P P e E E R R N N N O O O X 2 M I V.
A B A D A T = T = T N N O O I I T T A A C C O O L L N N
= e E E U U Q Q I I N a N H H C C E E T T 9 9
- e Y Y
. A A D D a
- i ;Ii q t
. . ,e*
,-s --
APPENDIM 1. VOLUMESIMee3), DURATIONT'SECI, AND ACTUAL NUMBERS AND DENSITIESINO. OF FISH /1000 Mee31 CF LARVAL FISH SAMPLED WITH A STATIONARY NET, FINE MESH SCREEN, PUMP / NET, AND CCW TAP FROM 6 THROUGH 10 JUNE 1982 IN THE VICINITY OF THE MCOUIRE NUCLEAR STATION INTAKE. ABBREVIATIONS USED ARE: NaNET, P= PUMP.
SgSCREEN, T= TAP, NOzTCTAL NUMBER, AND DENeDENSITV. WHERE REPLICATE EQUALS . NO REPLICATE EXISTS. PERIODS INDICATE MISSING DATA. LOCATIONS Al-D2 REPRESENT THE DESIONATION NUMBER OF THE BAY SAMPLED. LOCATION TAP WAS THE TAP VALVE I NS'. DE T HE S T A T I ON.
DAY =9 TECHNIQUEsN LOCATIONrD2 REPLICATE = VCLUMEr32.3 DURATION =1643 ---------------------------
TAXCN NO DEN O O 4 -------- ------ ----------- DAY *1 TECHNIQUE =P LOCATlON*At REPLICATE =. VCLUME=70.4 DURATICNr1921 ---------------------------
TAXCN NO DEN DCROSOMA SPP. 7 99.4316 CENTRARCHIDS 3 42.E136 1
_-__.__-._-...... ....-.-- DAYe9 TECHNIQUE
D D 1 1 7 1
7 E
e E h
i?!
t
\
33 3 8 U
L 1 9 4 2 s M 9 0 O N 8 1 F . ,
V E .
O 4 D 2 n
- 4. 1 1
i 1 1
=
a' E T
O 1 1 A O 3 2 N 1 C N 1 r, .
S I
L P
E
't P. D P P
- I P P
? $ H S S
"= N C e r O A R D C A S
= r. X MA = N T T l t A O R N A O X i T S T O T S O @
T O N I OM A R E T R C I c O C A O P O D C D L O
. L P
P E
U E Q U
, I Q
N I H N C H E C
- T E A T
9
= 9
^_ (
T = .
A Y D A D
+g '
lfliltll 1I 1 i
n -
APPENDIX 1. VOtt#tES I M =
- 3 ) , DURATIONSfSEC1, AND ACTUAL N'IMBERS AND DENSITIESINC. OF FISH /1000 M**3) OF LARVAL FISH SAMPLED WITH A STATICHRY NET. FIME MESH SCREEN, PUMP / NET, AND CCW TAP FROM S TbROUGH 10 JUNE 1982 IN THE VICINITY OF THE MCOUIRE NUCLEAR STATION IMTAKE. APBREVIATIONS USED ARF: N: NET, PrPUMP,
- 3. SCREEN, TsTAP, fCsTOTAL NUMBER, AND DENeDENSITY. MHERE REPLICATE EQUAL *, . fc REPLICATE EXISTS. PERIODt '4DICATE 1 MISSING DATA. LOCATIONS A1-D2 REPRESENT **4 DES: MATION NUMBER OF TFi BAY SAMPLED.. LOCATION TAP WAS THE TAP VALVE INSIDE THC STATION. .
........................... DAYS 9 TECHNIQUE =P LOCATION =D2 REPL I C#.TE = . VOLUME:62 DURATIONe1681 ----------------------------
l TAWOM NO CEN DOROSOMA SPP. 23 3M. 968 CENTRAPCHIDS 1 16.129 UNICENTIFIED 1 16.129 DAYe9 TECHNIQUE =S LOCATION =At REPLICATfr. VOLUME =88.9 DURATION =2220 ---------------------------
i I
TAMON NO DEN DOROSOMA SPP. 2 22.5223
DAYe9 TECHNIQUE =S LOCATIONeB1 REPLTCATE=. VOtte;E* 6J DURATION =2100 ----------------------------
TAXON NO DEN DO#0 SOMA SPP. 7 83.3333 s
--- ' DAYe9 TECHNIQUE *S LOCATION 202 PEPLICATIr. VOLUME =e6.4 DURATION =2160 ---------------------------
L TAMON NO DEN DC20$0MA ?.PP . 2 23,1481
l
. e e l
- l e .
4 e '
e e e
e 8 e . l 4 e 1 8 4 !
4 4 4
. .e e 6 e e e e a e e e e e a e e e 1 4 e e 4
8 8 O
.O - e.
a w Z Z
.D. D 6a 6 WT 4 b
o I
9 9 e o i 4 M H. p O- n OA M J G@m W N O O E Y E O y G. N W .
5 w O. G. l
.J Q - 9 .J O @. @M C h @ N O mW M
> N > w W
. o ... N. o Z ** W I CN*
D 5
g g .
s g .
W x L I. W P b x EIwE
= <
- o<W -
OW W -
z <
,- .e.r
<QW E W 6=
4 L W A O 6. W
- 1 WA 4 eya
- Ov
>=
- E0 . = <
5 8 6m" $. E
- 8 $' eE f
.O 4
ep g 0 8 8 8 W 8 W 8 to e D
- 0. . 0 E Z Z Z s u u W W 6= 6-
.O @
m a
>= >
fT 4 0 Q e -e e e t 8 5 9 8 0 6 i e i f 4 4 4 8 9 4 4 9
e t t 4 8 4 4 e 0 4 e 4 8 5 4 9 6 8 e 8 6
. ** ,e p .
w ,
, APPENDIX 1. VOLUMESIM**33, DURATIONSISEC), AND ACTUAL NUMBERS AND DENSITIESINC. CF FISH /SOOG Me*3) CF LARVAL r!SH SAMPLED WITH A STATIONARY NET, FINE MESH SCREEN, PUMP / NET, AND CCW TAP FROM 6 THROUOH 10 JUNE 1982 IN THE VIC!NITY OF THE MCGUIRE
- NUCLEAR STATICM INTAKE. ABBREVIATIONS USED ARE: N= NET, P= PUMP. I S=5CREEN, T= TAP, NC= TOTAL NUMBER, AND DEN =DENSITV. WHERE REPLICATE EQUALS . NO REPl.lCATE EXISTS. PERIODS INDICATE MISSING DATA. LOCATICMS Al-D2 REPRESENT THE DESIGNATION a
NUMBER OF THE BAY SAMPLED.
LOCATICM TAP WAS THE TAP VALVE INSIIT THE STAT:CN. .
t i
DAY =10 TECHNIQUE *N LOCATFONrA1 REPLICATE =. VOLUME *18.1 DURATION =1637 - - - - - - - - - - - - - - - - - - - - - - - - - -
i TAXON NC DEN !
O O t
DAY =10 TECHNIOUEeN LOCATION *A2 REPLICATES. VOLUME =28.7 DURaTIONettti --------------------------
TAXON NO DEN ,
O I O
DAY =10 TECHNIQUEeN LOCATION =B1 REPLICATE =. VOLUMEz31.8 DURATIONe1468 --------------------------
TAXCM NO DEN O O
--.....------------------ day,10 TECHNIQUE *N LOCATION =B2 REPL8CATE=. VOLUME =28.3 DURATIONS 1463 --------------------------
TAXCN NC DEN i
O O l
...--._-.-..-...--..-....' day.10 TECHNIQUE =N LOCATION *D1 REPLICATE =. Volume =23.9 DURATIONsl638 --------------------------
, 1 lib Il:!, l'l?, I e
3 0 4 6 s
t 8
1
N N O C I I T T A A R #
- U t D O 2 4 7 2 2 7
E E 6 2 M M 8 2 U U N 4 1 L L E 2 8 O O D . .
V V 5 3 5 1 N . N .
E 0 = E O =
D E D E C T T H 4 f A A C C I I O L C L M 0 P N O P M . M E E C P U R R M P N A S A T I N M A D O 2 C t N E X D X A O P Q e A = S E T N T N C C O O 5t I I C A T
A T DN A O C C S O O C L L R O
D N P
E E U U Q O I I N M H o H C C E E T T 0 0 1 1
= e Y Y A A D D Il,
. l1i
ti L j ' [ ,i l L !I? I i !l I' !( ,l fs k*
e - - - -
e - - - -
0 0 0 2 2 2 6 9 9 9 2 1 1 1 9
- = = 1 N N N =
D C C N
~ ! I I O
S P . T T T I R A P A A A t E DT Er? E R R R t B E R uEEN V U U U e
- L Wt PR T OL D D D J P C u=E AI A
?
qMCGPWI A C CT V A
D' LSDM , DNP 8 3 9 A N T NGA 3 UHAEE .I I T 2 2 1 7 T S HN Y S 7 7 7 =
CI , T = T S E E = = = E A ' T NI OD H E 9 3 6 E E 22 M EF S C T M 97 3 t 8 8 U DLN O: N N A / EER H S I E U N E
047 m N 0 0 L L .
L 3 L E 9 9 O 9 A V PY R DET A O D 1 7 3 C 1 O D V S R MT A - P T
W V 521 V N 3 V 3 3. N 9
. A UI N 1 E 8 1 1 E 0
) LPN DE N P D D C I
E A 3 . 1 E F SS T . . 1 . = 4 SCNI UDT E N. = = = E I EV NSR MO E O 1 21 E E O T S3 E SA I PCI T N 1 T T N 1 1 A N 3 R EN X E I T A A A C O s C HO ,
ERT A C C O C I O I e ST I R A T I I N 1 I L N 3 T M T EE2CS L L L P A HNABT DO P N M P P N t E
e R 0SI U0E I M A - LE V UCl H E
R C
X PUP P N P E
R E
R O
X PU P N r
R D0M2E NI A T A S A S . A S A .
1 8 R L . T I P T I P
, / E9 B LPS DE
%DS
- A D 1 P 3
H N1 B A EN ED 2 r EI 1 3 2 M E D S 3 SI A T P OLI A cP M B M B OP = N
= I F E C I P S = SE U = O A = S E N O A ,
M . U . = N A A I C R u O A O C R I A O I FT J EO C S I OA F I T S I OA T T S SCE K N T DM T C T DM A O E
t M0A C. V l A S A R A O C R
. 1 T .S A C S C O C S O O SOY t
t N RHI A A N PL ,B O L
U R
O L
D O L
O R
L D e( A G T UA E O C V S N UM = QT H D D E OOCT EA T P I I R I D P P P =
T T HT ,E F = = = E I
A T A NT OC E E E U 1 S T T EA U U U Q NS G SE C I' R Q Q Q I M E RI S E I I I N
I DA MR C LS B N N N H D OA SPI M H H H C NDHR E =,E MU C C C E E N T F L 3R N E E E T PA I C T T T P W U A N 0
0 D 0 1 1 1 1 =
= = = Y Y y Y A A A A D D D D
DAYe10 TECHNIQUE =P LOCATION =D2 REPLICATE =. VOLUME =73.1 DURATION =1980 ------------- ------------
TAXON NO DEN DOROSOMA 3PP. It 150.479 DORUSOMA CEPEDIANUM 1 13.600 DAY =10 TECHNIQUE =S LOCATION =At REPLICATE =. VOLUME =88.8 DURATIONr2220 --------------------------
, TAXON NO DEN t
c DOROSOMA SPP. 2 22.5225 DORGSOMA PETENENSE 1 11.2613 4
I l
4 4
k I
i h
o 4
e e e
< ~, -
- e. - . . - _ _- m _ _ _._ . . _ _ _ _ _ . _ _ _ _ _ _ _ _ _ . _ _ - _ - _ _ _ _ _ _ _ _
e - - -
0 o 0 0 8 o 6 4 5 s 7 3 1 o 3 2 1 t r = r e N N N N O
I O
I C
I c
i S P , T T T T R A P A A A A EDT EM E R R R R BE R UEEM V U U U U M L WI P R T C L D D D D UP C J - E A I A NMA C CM P WIHCTt A
V LS DM , DN P 2 6 6 4 A N T NOA UHA EE . I I T 1 3 5 .
1 T S HN Y S 3 9 2 2 C i ,T : T SEE 1
- r r A FT N I ODH = E 3 8 E E EP SC T E M 1 3 M 0 5 M 0LNC: N I E M U N 3 8 U 5 2 U 9 A / E ER HS U 3 L E 06 L N 2 6 L MVPYMT PA zCET P A W L
O N 1
O V
D 20 C
V E
D 1
.0 U 9 f
1
, A UI N T V E 4
8 3 1 8 9 N P' 2
) LPNDE NP D . 7 3 E C I E D .E A 9 D 6.
EF ,CS SS T . 1 . 1 2 d GCNI UDT E N . = = =
t EV NSR NO r E 3 e E E S E S AI P OI E T P 3 1 T O T H
C sMPEM CHC X E I T
,ERT A T
A O A
C A
C N 21 A C O I u ST I R A T C N 3 I I I N I T M T EE2C S I L L L a HNA BT DO L P M P P e R9SI
- MA - LE UOE V UC1 H P
E E
R C
F P. M P N U E R
N C PS
. E E R -
- f2ENI A T R . A S A F P N .
I 8 R L .
P T I A S E P
. / E9 B LP S DE P A D T N P 1 H N1 B A E N E D S 2 ME P A E P S 3 SI A T R OLI 2 M D C P A MT A N -
- I F E O I P S A C. A = S E T CE T S. A
- F N T OT MN
- F M N GC = S P = w M l
P ,U . = NA A I N A O O A N O N A S t F T J E C C S O T S I G A c R A O T S S O E K N .C I O T LM i 0 M I O E
- r M0A L Y T T A O T 0C T R
. 1 T ,S A A 0 C S A S A O UOY N PL B C 0 C O C O C D L N R MI A A .
0 L R O R O Ot A G T UA E t O L O L VS NUN = QT H D D E OOOT E A T I I R I D S TT HT .E F S = T T
.I A T A NT GO r E s =
1 S T T EA N E U E E NS6 S E CI R U Q U U xE R I S E Q I Q Q iDA 1 R* C LS B I N I I D OA $PI M N H N N NDHRE r E MU H C H H EN T F L 3R N C E C C PA I C E T E E P W U T T T A N 0
0 1 0 0 1 = 1 1
Y s
Y A Y Y A D A A D D D
,1
-~ _
APPENDIX 2. TAMA, ACTUAL NUMBERS, DENSITIES OF FISH IN SAMPLE, VOLUME 3, AND DURATIONS OF TRAVL SAMPLES TAKEN G THROUGH 10 JUNE 1982 IN THE VICl4TY OF MCGUIRE NUCLEAR STATION INTAKE. UNITS USED ARE: VOLUME. M*=3; DURATION, SEC; AND DENSITY, NO OF FISH /1000 M*=3.
l
^
, --------------------------------- DAV=6 REPLICATE =1 STRATUM =1 VOLUME =180.0893 DURATION =161 ---------------------------------
TAXON NO DEN DOROSOMA SPP. 24 133.267 DOROSONA CEPEDIANUM 26 144.371 DOROSOMA PETENENSE 1 5.553 CYPRINIDS 1 5.553 I LEPCMtS SPP. 2 11.106 1
................-..__.-.-.--..... DAY =6 REPLICATE =2 STRATUM =1 VOLUME =220.6262 DUR A T I ON = 1 9 7 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
TAXON NO DEN DOROSOMA SPP. 47 213.030 DOROSOMA CEPEDIANUM 23 104.249 CYPRINIDS 1 4.533 LEPCMIS SPP. 2 9.065
DAY =6 REPLICATE =3 STRATUM *2 VOLUME =271.8536 DURATION =167 ---------------------------------
TAXON NO DEN OCROSOMA SPP. 5 18.3922 DO*CSOMA CEPEDIANUM 1 '3.6784
__. ......-.... ...----.....--.-- DAY =6 REPLICATE =4 STRATUM =2 VOLUME =353.6132 DURATION =237 ---------------------------------
TAMON NO CEN i,
DOROSONA SPP. 20 56.559
jlIjli,ii ,l1I l i I
! 1 illll 11 lllillIiiIl1lI1 111 i1liI lll1 1l l
~
~ -
o - -
7 6 9 2 1 2
= r N N O O I t T t A A R R U U D D b5C 6 0 4 22 2 552 2 9 0 6 8 6 6 N 2 23 3 0 N 3 2 4 4 2 E 3 3 55 8 E 4 3 99 6 D 2 D .
55 4 4 3 1 33.
0 4 4 3 4 5 2 5 2 2
E 1
E P O 0 0T ? M O 1 3 1 1 U N 1 1 U N 1 1 L L O O V V N .
1 P S S N a
O X
P UO N P N I E 1 C
k P. UMES P N NI SD
- A SA C C = A S A EN M T I R S M T I N I U A DE E U 4 D ER T NE P V T ET P A O P A A "C P EY R SE L R S E PC T OC F T O C S R S R A OA A O A M DM C DM O O R OS 5 S E 6 S O
= O P = OR E R E R C T O T OO A D A D C C I
l.
t L P P E E R R F
= M Y Y A A D D
.a-
+
h - _.
1 t APPENDIX 2. TAXA, ACTUAL Nt,MBERS. DENSIT12S OF FISH IN SAMPLE, VOLUMES.'ANC DURATIONS OF (RAWL SAMPl.C3 TAKEN 6 THRCJCH 10 JUNE 1E82 IN THE VICINITY OF MCGUIRE NUCLEAR ' STATION INTAKE. ' UNITS l USED ARE:. VOLUME, Me*3; DURATION. SEC; AND DENSITY, NO OF. ' i FISH /1000 Me=3.
l . {
' --------------------------------- DAY =6 REPLICATE =6 STRATUM =1 VOLUME =253.2809 DURATION =226 ---------------------.------------ - ,
- + w e..- NO
~
DEH CEN.- :cHIDS 2 7.89637
r
........................... ....- DAY =8 REPLICATE =7 STRATUM =2 VOLUME =197.s311 DURATION =126 -------------------------------- . .,
TAXON NO DEN i
DOROSOMA SPP. 1 5.07276 i
DAY =7 REPLICATE =1 STRATUMt1 VOLUME =292.728 DURATION =267 ---------------------------------- i TAXON .NO DEN DOROSONA SPP. 41 140.062 !
DO90SONA CEPEDIANG 137 468.OfI' b Y
...~._....... ... .. _............ DAY =7 REP'.lCATE=2 STRATUM =1 VOLUME =280.6149 DURATION =25G --------------------------------- '
e TAXON NO DEN DOROSOMA SPP. 59 210.2$3 DOROSOMA CEPEDIANUM 52 185.307 s
................_... ........---- DAY =7 REPLICATE =3- STRATUMS 2 VOLUME =529.7292 DURAllON=442 --------------------..---------- .
TAMON NO DEN '
r
?
'DOROSONA S*P. 59 111.378 . . '.
f
' L 2
3 3
=
N O
I T
A R
U D
7 8 6 1 6 3 6 5 3 8 7 5 2 1 8 5 7 2 N 0 5 0 5 C. 8 75 9 E 681 5 G1 3 7 4 D .
C 0 1 26 7 3 2 5
4
=
E 31 2 4 B O 4 0I F 4 U N 1 1 L
O V
MS .S N .
M . S UUP D O P UP D NT P I 2 X P N P I A A E C = A SA SC I C R M T I R D sE U ADS E ESt P T M EI P PUx A OP X ER O R S E O CUM T OC M L C S R O A A P OA P MT DM OC O SI 4 S O = O R E R O T O D A D C
I L
P E
R 7 ,
=
Y A
D
. s- . -
t t
' APPENDIX 2. TAXA, ACTUAL. NUMBERS, DENSITIES OF FISH IN SAMPLE, VOLUMES, AND DURATIONS OF TRAWL SAMPLES TAKEN 6 THROUGH 10 JUNE 1982 IN THE VICNWTY OF NCOUIRE NUCLEAR STATION INTAKE. UNITS-
.USED ARE: VOLUME. M==3: DURATIOF, 'FC;.AMD DENSITY, NO Or
. FISH /1000 N==3.
DAY =7 REPLICATE =5- STRATUM =2 VOLUME =376.7766' DURATION =280 ---------------------------------
TAXON NO' ' DEN DOROSONA SPP. 22 58.3900 DOROSOMA CEPEDIANUM 6 15.9246 CYPRINIOS- 1 2.6541 LEPOMIS SPP. 2 5.3082 PERCIDS 2 5.3082
......-.......................... DAYS 7 REPLICATE =6 . STRATUM =2 VOLUME =362.6417 DURATION =264 ---------------------------------
. TAXON NO DEN 1
DOROSONA $*P. 20 55.1205 DOROSOt1A CEPEDI ANUM 2 5.5120 I' ETHEOSTOMA SPP. 1 2.7560 I
..______.......... .......-......- DAY =7 -REPLICATE =7 STRATUM =1 VOLUME =209.0373 DURATION =191 ---------------------------------
TAXON NO- DEN i
l DOROSOMA SPP. 17 81.325 DOROSOMA CEPEDIANUM 93 444.897 LEPOMIS SPP.. 1 4,784-PCMOXIS NIOROMACULATUS 1 4.734 i
DAY =7 REPLICATE =8 STRATUM =1 VOLUME =202.5597 ' Di rR A T I O N = 1 8 3 - - - - - - - - . - - - - - - - - - - - - - . - . . . . . - - .
4 TAXON NO' DEN DOROSONA SPP. 8 39.495. * ". * .
. - . . . - , -.. ., , . . :. . wa .: . . . , . . . , m ,
~
DOROSOMA CEPEDIANUM 77 300.135 ~
DAY =7 REPLICATE =9 STRATUM *1 VOLUME =242.0207 DURATION =216 ---------------------------------
TAXON NO DEN DOROSOMA SPP. 21 86.769 DOROSOMA CEPEDIANUM 64 264.440 ;
------ DAYS 7, REPLICATE =10 STRATUM =1 VOLUME =185.7195 DURAT10N=166 ---------------------------------
TAXON NO DEN i
DOROSOMA SPP. 22 118.458 I
, DGROSOMA CEPEDIANUM 40 215.3754 t
3 .
b i
t j
4 3
a 4
a i
2
lI; l j l.
I1I il, II 7 5 9 5
,E 0 8 1 3 EN S 2 1 1 2 L U T = = = =
P J I N N N N M N F O O O O A 0UO I I I I S 1 T T T T O A A A A NH .N R R R R I
G E U U U U U K , D D D D H OA Y S R T T I H NI 2 5 5 5 5 4 7 58 3 3 F T I S 2 1 8 8 0 1 7 3 5 2 7 3 4 4 4 N 3 N 7 2 2 2 8 8 N 6 2 1 - N 4 1 66 F G N E 4 E 9 3 0 0 6 4 E 5, 47 E 8 O OE D . 3 3 . 6 8 3 0 D D G. 9 8.
NI 0 9 33 3 .
N E
6 1 5
. 8 1 2
5 8 222.
22 SE T D 0 1 4 5 5 1 ?
E K A N 3 8 D . 7 4 I
A T A = 2 7 3 1 3 T T S E = 1 = =
I ; M E E E S S RC . U O M M O M O 081 1 NE A E 3 L N 6 1 1 I U U N 52I U N 1 E L E S = O L L L DP L e V O O O O
,MC ,N V N 51 V V A UN
.. S S NO0 N . M . . N .
M . N . ME .
. R I 0 2 O P UPP O P U P O P US P E L ET 0 = X P N P P 2 2 X P N P 2 X P N N P B W R A 1 M A S A S S = . S = A S A S = A S A E S MA I R / U T I M PD M T I M T I N U F U U H T A DS A U P I U A DS U A DE S NT GDS A NEI M T S C T NE I T MET I C I R OP X O A N R A O P M A O PE X LF M ;F T S E OT R O A E R S E O R S EPO A O 3 S OCMS T X MP T O C P T O C M U F = R OO S A O S R E S R AO T S O a O A P E T S OA L OA MP C N M DN H O DM DMO A O Y 1 O T R O OS I T , 1 S E 2 O 1 S 2 S O
,T I
= O 1 D = O = OR A A IN E M E R = E R E R O OD X R C U T O E T O T A U I L A D T A D A D T D VO C A C C V I C I I DE L I L L
. N H : P L P P 2A T E E P E E R R E R R X ,N A R l S I DE D
- N M2 E 7 8 8 E U 8 S = 7 = e P L 9 U Y = Y Y P O1 A Y A A A V D A D D D
t.
e e t 1
' 8 4
e e
- g. t 4
-. .l. l e a e i e e a e
. e e 4 4 t e i 4 e e e e 1 6 e e t t t 8 6 a I 4 e e i e e s t 5 4 0 e i i t t e C *
~ N N N tl
.N e w O
.D - -
W F
( (
E E D D O O O O - N eO O e@ e O Q@C
@ Z O Z b@
W W O. *. @. M W N. .
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APPENDIX 2. TAMA, ACTUAL NUMBERS. DENSITIES OF FISH IN SAMPLE, VOLUMES, AND DUPATIONS OF TRAWL SAMPLES TAKEN 6 THROUGH 10 JUNE 2 1982 IN THE VICIHITY OF MCGUIRE NUCLEAR STATION INTAKE. UNITS USED ARE: VOLUME, M==3; DURATION, SEC; AND DENSITY, NO OF i FISH /1000 M==3.
I DAY =8 REPLICATE =5 STRATUM =2 VOLUME =304.7662 DURAT10N=187 ---------------------------------
TAXON NO DEN DOROSOMA SPP. 5 16.406 DAYe8 REPLICATE =6 STRATUM =2 VOLUME =277.2965 DURATION =185 ---------------------------------
i TAXON NO DEN DOROSOMA SPP. 8 23.85 DAY =8 REPLICATE =7 STRATUM =1 VOLUME =209.2419 DURATION =189 ---------------------------------
TAAON NO DEN DO WSOMA SPP. 29 138.596 DOROSDMA CEFEDIANUM 75 358.437 DOROSOMA PETENENSE O 14.337 DAY =8 REPLICATE =8 STRATUM =1 VOLUME =126.0228 DURATION =117 ---------------------------------
TAXON NO DEN DOROSONA SPP. 22 174~572 DOROSOMA CEPEDIANUM 81 642.741 DOROSONA PETENENSE 3 23.805' I
j -...__..... _...._.......___... DAY =8 REPLICATE =9. STRATUM =2 VOLUME =415.0227 DURATIONe254 ......____.................__.._.
i TAWMN NM PA M
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DOROSOMA SPP. 12 23.9141 DOROSOMA CEPEDIANUN '7 16.6665' ICTALURUS CATUS 1 2.4095 LEPCNRS SPP. 1 2.4095
___...--...-....-------..--...-- DAY =8 CPLICATE=10 STRATt.Hr2 VOLtJME=238.6969 DURATION 165 --.-----.---...---------..-- -.--
TAXON NO DEN
- D'OROSOMA SPP. 16 67.0300 DC*OSOP1A CEPEDIAm21 2 8.3788 LEPOMIS SPP. 3 12.5681 POMOMfS NIGROMACULATUS 1 4.1894
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e APPENDIX 2. TAXA, ACTUAL NUMBERS, DENSITIES OF FISH IN SAMPLE, VOLUMES, AND DURATIONS OF TRAWL SAMPLES TAKEN 6 THROUGH 10 JUNE 1982 IN THE VICIPGTY OF NCOUIRE NUCLEAR STATION INTAKE. UNITS USED ARE: VOLUME, M*=3; DURATION, SEC: AND DENSITY, NO OF FISH /lOOO M*=3.
OAY=8 REPLICATE =11 STRATUM =1 VOLUME =287.2OO2 DURATION =259 ---------------------------------
TAXON NO DEN DOROSOMA SPP. 64 222.841 DOROSO9A CEPEDIANUM 63 219.359 DOROSOMA PETENENSE 5 17.409 DAY =8 REPLICATE =12 STRATUM *1 VOLUME =162.073 DURATICN=145 ---------------------------------
TAXON NO DEN DOROSOMA SPP. 46 283.823 DOROSOMA CEPEDIANUM 43 2G5.313 DOROSOMA PETENENSE 5 30.850 DAY =9 REPLICATE =1 STRATON=1 VOLUME =205.1569 DURATION =192 ---------------------------------
TAXOM NO DEN DOROSONA SPP. 43 209.596 DOROSOMA CEPEDI ANUM 50 24's.716 PERCIDS 1 4.874
DAY =9 REPLICATE =2 STRATUM *1 VOLUME =239.5799 DURATION =224 --- -----------------------------
TAXON NO DEN DOROSONA SPP. 74 308.874 DOROSOMA CEPEDIANUM 148 617.748 CENTRARCHIDS 1 4.174
. ,/. ".:
o
................... DAY =9 REPLICATE =3- STRATUM =2 VOLUME =286.0695 DURATIONz188 -------------------- ------------
TAXON NO DEN
.DOROSOMA SPP. 12 41.9478 DOROSOMA CEPEDIANUM 8 27.96S2
,................................. DAY =9 REPLICATE =4 STRATUM =2 VOLUME =239.3746 ' DURATIONS 156 ---------------------------------
, TAXON HC DEN DOROSOMA SPP. 17 71.0184 DOROSOMA CEPEDIANUM 1 4.1776 1
LEPOMIS SPP. 1 4.1776 i,
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.t APPENDIX 2. TAXA, ACTUAL NUMBERS,' DENSITIES OF FISH.IN SAMPLE.
VOLUMES,.AND DURATIONS OF TRt.WL SAMPLES TAKCN 6 THROUGH 10 JUNE- T 1982 IN THE VIC194TY.0F MCOUIRE NUCLEAR STA.f0N INTAKE. UNITS USED ARE: VOLUME, Ms=3;.Dut;AT!ON. SEC; AND DENSITY, NO OF
' FISH /1000 Mes3.
4 j 4 REPLICATE =5 STRATUM =1 VOLUME =142.7652 DURATION =134 -------------------- - ------------ . I
DAY =9 ?
TAXON NO DEN DOROSONA SPP. 51 357.230 45 315.203 r.
DOROSOMA CEPEDI ANUM
.4 DOROSOMA PETENENSE .2 14.009 REPLICATE =6 STRATUM =1 VOLUME =165.2101 DUPATION=193 -----~~--------------------------
DAY =9 TAXON NO DEN DOROSOMA SPP. 45 272.330 DOROSONA CEPEDIANUM .64 387.38G DOROSOMA PETENENSE . 2 12,10G REPLICATE =7 STRATUM =2 VOLUME =2OO.5929 DURATION =133 ------------ ------------------ -
-- -------------------------.---- DAY =9 TAXON NO DEN DOROSONA SPP. 10 49.8522 DOROSONA CEPEDIANUM -3 14.9557 PERCIDS 1 4.9852 STRATUM =2 VOLUME =360.6585 DURATION =240 ---------------------------------
------------------------ DAY =9 ' REPLICATE =8 TAXON . NO DEN DOROSOMA SPP. 29 80.4085 DOROSOMA CEPEDIANUM' 8 '22.I817 2.7727 ,
POMOXls SPP. 1 PERCIDS '1. 2.7727 .1
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i APPENDIX 2 TAXA, ACTUAL NUMBERS, DENSITIES OF FISH IN SAMPLE, VOIUMTS, AND DURATIONS OF TRAWL SAMPLES TAKEN 6 THROUGH 10 JUNE 1982 IN THE VICINNY OF MCOUlHE NUCLEAR STATION IHTAKE. UNITS USED ARE: VOLUME, Ms=3; DURATION, SEC; AND DENSITY, NO OF FISH /1000 Me=3.
DAYS 10 REPLICATE =2 STRATUM =2 VOLUME =266.4048 DURATION =170 ---------------------------------
TAXON NO DEN l
PERCIOS 1 3.73369 REPLICATZ3 STRATUMS 1 VOLUME =147.3704 DURATION =13S ---------------------------------
l ---------- --------------------- DAY =10 TAXON NO DEN DOROSOMA SPP. 42 284.996 DOROSOMA CEPEDIANUM 33 223.926 OOROSOMA PETENENSE 6 40.714 REPLICATE =4 STRATUM =1 VOLUME =210.3556 DURATION =190 ---------------------------------
--- ..------ ---.--------------- DAYa10 TAXON NO DEN DOROSOMA SPP. 48 228.18' DOROSOMA CEPEDIANUM 42 199.6^
DOROSOMA PETENENSE 9 42.70s REPLICATE =S STRATUM =2 VOLUME =319.9726 DURATION =211 - -------------------------------
~
-r-- ----------------------- --- DAY =10 TAXON NO DEN DOROSOMA SPP. 9 28.1274 DOROSO.9A CEPEDIANUM 11 34.3779 STRATUM =2 VOLUME =274.414S DURATION =176 -------------------------- - 1--
.....---- -----.-------- DAY =10 REPLICATE =6 ,,,4 a
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APPENotM 2.' ' . T AX A , ACTUAL NUMBERS, DENSITIES OF FISH IN SAMPLE..
. VOLUMES, AND DURATIONS OF TRAWL SAMPl.ES : TAKEN 6 THROUGil 10 JtJNE.
1982 IN THE VICINITY OF MCOUIRE NUCLEAR STATION INTAKE. Ufit TS USED ARE: VOLUME, Man 3;.. DURATION, SEC; AND DENSITY, MO OF' i FISti/1000 Mass.
i -------------------------------- DAY =10 REPLICATE =8 . STRATUM =1 VOLUME =158.6769' ' DUR A T I ON = 14 7 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- -
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