ML072680189
| ML072680189 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 12/09/1987 |
| From: | Joseph J US Dept of Commerce, National Marine Fisheries Service, US Dept of Commerce, National Oceanographic and Atmospheric Administration |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| 2130-07-20506, 3-405-R, TAC MC7624 | |
| Download: ML072680189 (81) | |
Text
klý UNITED STATES DEPARTMENT OF COMMERCE NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION NATIONAL MARINE FISHERIES SERVICE COMMERCIAL FISHERIES RESEARCH AND DEVELOPMENT ACT (PUBLIC LAW 88-309)
STATE: NEW'JERSEY PROJECT NO.: 3-405-R SEGMENT NO.: 2 PROJECT TITLE: INVENTORY OF NEW JERSEY'S ESTUARINE SHELLFISH RESOURCES PERIOD COVERED: JULY 1. 1986 toUGUST 31, 1987 PREPARED BY:
APPROVED BY:
RUSSELL A. COOKINGHAM, DIRECTOR DIVISION OF FISH, GAME & WILDLIFE DATE: DECEMBER 9, 1987
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TABLE OF CONTENTS PAGE JOB NO. 1: Shellfish Inventory 2 JOB NO. 2: Investigation of Lease Ground Applications 10 JOB NO. 3: Hard Clam Relay Monitoring 13 JOB NO. 4: Oyster Research, Inventory and Management 16 ATTACHMENT A 18 Figure 1 Little Egg Harbor Bay Shellfish Inventory 19 Station Locations Figure 2 Little Egg Harbor Bay Shellfish Inventory 20 Distribution and Abundance of the Hard Clam, Mercenaria mercenaria Figure 3 Size-frequency Distribution 21 Little Egg Harbor Bay Hard Clam Population Table 1 Shellfish Inventory Summary 2.2 ATTACHMENT B 60 Lease Ground Application Locations 61 Key to Lease Ground Summary Charts 62 Lease Ground Summary Charts 63 ATTACHMENT C 68 Table 1: 1986 Hard Clam Relay Reported Harvest 69 and Effort Table2: 1987 Hard Clam Relay Reported Harvest 71 and Effort (January 1 - August 31)
Designated Hard Clam Relay Areas 73 ATTACHMENT D 78 Mullica River Oyster Seed Bed Summary 79
ABSTRACT The inventory program initiated in 1983 continued. During Segment 2, 188 stations were sampled in Little Egg Harbor Bay from Manahawkin to Holgate. Only the hard clam, Mercenaria mercenaria, was collected insignificant numbers. The hard clam resource within the surveyed area of Little Egg Harbor Bay was estimated at 177.2 million clams.
Recruitment rates and size-frequency data indicate that the hard clam population of this region is dominated by a few larger, older year classes.
Biological investigations were performed for 40 prospective lease applications received for areas from Little Egg Harbor Bay in Ocean County to Great Sound in Cape May County. Following a review of the biological reports submitted for these applications, the Atlantic Coast Shellfish Council approved all but seven of the applications.
The hard clam relay program continued to operate in Monmouth County. The reported harvest for 1986 was 5,182,560 clams with a resultant catch per effort of 1307 clams/man/day. These figures are virtually identical to those of 1985.
The Mullica River oyster beds were monitored for setting success, survival and overall bed condition. The seed beds were in poor con-dition and had high mortality rates, with MSX infection being the likely reason for the observed decline in bed condition.
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JOB NO. 1 SHELLFISH INVENTORY The long term goal of the Shellfish Inventory project has been to determine the distribution and abundance of commercially valuable molluscan shellfish within New Jersey's coastal estuaries.
The last inventory of.New Jersey's estuarine shellfish resource was completed in 1963 and the information is seriously antiquated. To provide the current data necessary to manage the State's estuarine.
shellfish resources, a comprehensive inventory was initiated in 1983 during the previous project (3-332-R).
During Segment 2 the shellfish inventory program concentrated its effort in Little Egg Harbor Bay.. As in the previous project, the sampling program was designed primarily to sample the hard clam, Mercenaria mercenaria, since this is the most abundant and widely distributed molluscan species within the estuaries along the Atlantic Coast of New Jersey. The sampling procedure consists of towing a miniature hydraulic clam dredge (knife width of one foot) from a. 32 foot research vessel to collect adult shellfish. The dredge is con-structed to collect all hard. clams 30 millimeters in length or. great-er. Sampling efficiency for other shellfish species varies according
.to the size-of the organism.
Stations were established at approximately quarter mile intervals.
Stations were located by one or more methods including a three-point sextant fix, hand bearing compass reading or LORAN C coordinates.
After station position was established a buoy was placed overboard to insure the maintenance of the boat's position throughout sampling operations at each station. Following deployment of the buoy, air
and water temperatures were recorded. Water samples were collected for later analysis of dissolved oxygen, salinity, and pH. Given the high sampling frequency and minimal variation of hydrographic data throughout Little Egg Harbor Bay water samples were collected at only the first and last station of each field day. Dissolved oxygen was determined by Winkler titration. Salinities were determined by a hand held refractometer and pH readings were obtained with a Taylor slide comparator.
Following collection of the water samples, one benthic sample was collected.by use of a Petersen dredge. A portion of this sample was retained for later sediment analysis following procedures outlined in ASTM Standard D422-51 (modified). Using the Wentworth grain size clas-sification, any sediment retained on a 2.0 millimeter sieve is con-sidered gravel and any sediment passing through a 63 micron sieve is classified as mud. Results were expressed as percentages of gravel, sand and mud. The sediment samples collected from Little Egg Harbor Bay await analysis. The remainder of the sediment sample was washed through a 1.0 millimeter sieve and all material and organisms retain-ed on the sieve were preserved in 10% formalin. These samples were then transferred to isopropyl (70%) alcohol for later identification and enumeration of all benthic invertebrates. Benthic invertebrates are currently awaiting sorting, identification and enumeration.
The water depth of the area was recorded and the tow line length determined utilizing a tow line length to depth ratio of 4:1. In some situations in areas of deeper water the tow line length to depth ratio was reduced to 3:1. In no instance, however, did this ratio fall below 3:1.
Two 100 foot tows were made, one on each side of the buoy, into the prevailing current. The 100 foot distance was measured by paying out a marked line while towing the dredge. In bottoms with a high percentage of clay, old oyster shell, or eel grass (Zostera marina),
it was not possible to tow the entire 100 feet because the dredge would become clogged. Therefore, individual tows were shortened to 50 feet in this type of substrate. At the end of the measured tow the vessel was held as stationary as possible until the dredge was raised off the bottom to prevent sampling more than the desired area.
The number of clams collected on each tow was recorded and the mean density determined by utilizing the average of the two tows. Mean hard clams densities (other species also) are expressed in terms of number per square foot.
All hard clams and paired hard clam valves collected were meas-ured lengthwise to the nearest millimeter. A size-frequency dis-tribution for Little Egg Harbor Bay was constructed using the pooled data from all 188 stations. In all cases the hard clams collected were graded into the following size categories:
Seed (SL) 30-37 mm in length Littlenecks (LN) 38-55 mm in length Cherrystones (CS) 56-76 mm in length Chowders (CH) > 76 mm.in length Natural hard clam mortality at each station was determined.
This mortality was based Upon the percentage of empty paired valves in the entire sample of paired valves and live clams.
Paired valves were also examined in an attempt to determine the cause of death.
Detailed results of clam density, water quality, size-frequency distribution and densities of associated benthic organisms can be found in Attachment A (Table 1). A total of 188 stations were samp-led in Little Egg Harbor Bay from Manahawkin to Holgate. Like most of New Jersey's estuarine areas, some areas in Little Egg Harbor Bay were too shallow to be sampled even at high water. Charts showing stations locations are contained in Attachment A (Figure 1).
The hard clam was the only commercially important shellfish spe-cies collected within Little Egg Harbor Bay. No soft clams (Mya arenaria), bay scallops (Argopecten irradians), or oysters (Crassos-trea virginica) were collected and only three blue mussels (Mytilus edulis) were collected from the 188 stations sampled. Figure 2 (Attachment A) depicts the distribution and abundance of hard clams in Little Egg Harbor Bay.
HARD CLAMS As previously mentioned, the sampling program was designed primar-ily to sample hard clam populations in a variety of substrate types.
The inventory program provided information not only on the distribu-tion and abundance of hard clams but also data on mortality, recruit-ment, and year class strength.
The hard clam was the most widely distributed shellfish species throughout Little Egg Harbor Bay. For the purpose of delineating the general abundance patterns of the hard clam resource the three classifications of occurrence, moderate density, and high density were established and assigned density values of 0.01-0.19,. 0.20-0.49 and > 0.50 hard clams per square foot, respectively. The density
categories selected resulted from a comparison of the densities ob-served during the sampling program and densities reported by other researchers.
In order to develop an estimate of the hard clam resource within a particular estuary, it is necessary to make some basic assumptions.
One assumption is that the dredge is 100% efficient. Although we are confident that the dredge is relatively efficient, in actuality it is probably something less than 100% efficient. Our estimate of the hard clam resource is therefore a conservative one. The other assumption that we must take. into consideration is that the density observed at each station is representative of a much larger area than that sampled.
This may not be the case, however, as previous work by the Bureau of Shellfisheries and others has commonly shown hard clams to be rather gregarious, exhibiting a clustered distribution. To minimize this source of estimation error, sampling frequency was increased to the maximum extent practicable.
Hard clam densities ranged from 0 to 2.62 clams per square foot.
For the purpose of calculating estimates of the hard clam resource the following density classifications were established:
Number of clams per square foot
< .05
.06-.11
.12-.49
.5- .99 1.0-1.99
> 2.0
Adjacent stations within the same density category listed above were grouped together and a mean density for that area determined by utilizing the hard clam density means of the individual stations. A planimeter was utilized to estimate the size of the individual areas.
The mean density was then applied to the size of the area to yield the standing stock estimate for that particular area. By summing the small areas a resource estimate of Little Egg Harbor Bay was developed. The The hard clam resource was distributed over 16,372 acres within Little Egg Harbor Bay.. The estimated standing stock of hard clams in the sur-veyed area of Little Egg Harbor Bay is 177.2 million, clams.
YEAR CLASS STRENGTH To examine year class strength for Little Egg Harbor Bay, a single size-frequency distribution was constructed for the nearly 7000 clams measured from throughout the bay (Figure 3, Attachment A). From this graph it is apparent that the hard clam population is dominated by a few larger, older year classes. Individual hard clams collected by the dredge ranged in size from 20-106 mm with a mean size of 74.8 milli-meters. The dominance of the population by a few older year classes supports the contention of area shellfishermen that the hard clam re-source in Little Egg Harbor has been declining, particularly in regard to the more desirable littleneck and cherrystone size categories.
RECRUITMENT Recruitment is defined as the percentage of clams entering the fishery at the legal size of 38 mm in length. To determine, annual recruitment rates it was assumed that the seed collected between
30 and 37 mm represented a single year class and would thus be expected to be recruited into the fishery within the coming year.
For the purpose of this discussion, only those recruitment rates for moderate and high density areas. are considered since the re-cruitment rates for low density areas would be biased due to the small sample size.
The dominance of the Little Egg Harbor Bay hard clam population by a few older year classes, as exhibited in the size-frequency dis-tribution, was documented further by examination of recruitment rates for various: areas. Recruitment rates ranged from 0.0 to 34.6 percent with anaverage of 3.92% for all moderate and high density areas. This figure is well below the average recruitment rate of 5.7% for other areas inventoried since 1983. Those areas with the highest recruitment rates occurred in the middle third of Little Egg Harbor Bay between threeand five miles north of Beach Haven Inlet.
Within this general area, however, there is no distinquishable pat-tern to the recruitment rates.
HARD CLAM MORTALITY Natural adult (> 30 mm) hard clam mortalities varied consider-ably from station to station. The average total mortality for Little Egg Harbor Bay was 11.6 percent. Of the total mortality figure 19.9%
was attributed to predation by horseshoe crabs (Limulus polyphemus),
17.4% due to predation by whelks (Busycon caraliculatum, B. carica),
and 0.89% due to predation by the moon snail (Polinices duplicatus).
Observed abundance of the common clam predators such as: conchs, Busycon carica, and B. canaliculatum; moon snails, Polinices duplicatus
and Lunatia heros; oyster drills, Urosalpinx cinerea and Eupleura caudata; horseshoe crabs, Limulus polyphemus and starfish, Asterias forbesii was relatively low.
During Segment 3, sampling will be conducted in Great Bay and pro-ceed southward as time allows. The inventory program is scheduled to continue sampling New Jersey estuaries that have not been recently in-ventoried until all estuaries have been completed and the distribution of the shellfish within these estuaries delineated. Collection of the related data of recruitment and mortality rates, year class strength, sediment types and- associated benthic invertebrates will hopefully result in the development of management plans for the various species.
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JOB NO. 2 INVESTIGATION OF LEASE GROUND APPLICATIONS Commercial shellfishermen requiring areas of bay bottom for planting seed oysters and clams or as layout grounds submit lease applications to the Atlantic Coast Shellfish Council for their review. Following this review process, the Council makes recom-mendations to the Commissioner of the Department of Environmental Protection whether the lease should be granted or remain open for public use. The current philosophy of both the Atlantic Coast Shellfish Council and the New Jersey Bureau of Shellfisheries is to discourage-'leasing of productive habitat so that the resources of such areas remain available for public (commmercial and recrea-tional) utilization..
In order to assist the Council in their decision, each lease application is investigated for shellfish productivity with a biological report being submitted to each councilman prior to the monthly meeting of the Council. The application is considered and discussed at the first meeting with the final decision being rendered at the meeting the following month.
The biological investigation of each lease application yields data on the present shellfish density of the area, year class strength and recruitment, mortality, associated organisms, sub-strate type and basic water quality (i.e. dissolved oxygen, sal-inity, pH, depth, and temperature). This information, in addit-ion to the history of the area, is used to determine the product-ivity of the area.
Each prospective lease is classified as productive, potentially
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productive or nonproductive shellfish habitat depending on the re-sults of the biological investigation. Productive habitat is de-fined as an area that is and/or has been a regular producer of var-ious shellfish species, although the classification is generally associated with hard and soft clams and oysters. An area can be productive habitat for one speciesand nonproductive for another.
The Mullica River oyster seed beds, for example, are extremely productive oyster habitat but nonproductive with respect to hard clam habitat. Areas are classified as nonproductive when there is no regular natural recruitment. However, many of these areas are excellent for growth making them favorable for aquacultural use. Areas with biological data insufficient to classify them as productive or nonproductive are termed potentially productive.
During Segment 2, 58 applications were received for lease ground along the Atlantic Coast from Little Egg Harbor Bay to Great Sound. Eighteen of the applications were canceled due to the applicants' noncompliance with the policy of the Atlantic Coast Shellfish Council requiring the staking of all lots within six months of the date of application.
Of the 40 applications for which biological investigations were performed, three were found to be productive, seven non-productive and 30 were classified as potentially productive.
Following a review of the biological reports submitted for these applications, the Atlantic Coast Shellfish Council approved all but seven of the applications. The applications denied were either classified as productive or were sheltered areas that
were regularly worked during harsh winter weather. The Council has a policy of denying lease applications in such areas so that they can remain available for public use.
Specific information regarding the location and results of the biological investigations for each lease can be found in Attachment B.
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JOB NO. 3 HARD CLAM RELAY MONITORING The relay program consists of transferring hard clams, Mercenaria mercenaria, from condemned areas onto leased lots in approved water. Following a thirty day purification period, sam-ples are analyzed for bacterial contamination and if the analysis reveals the elimination of harmful bacteria the lots are opened for harvest. Since the inception of the relay program in 1970, over 76 million clams have been utilized from condemned waters.
The intensive sampling program of the Inventory Program (Job
- 1) required that all available personnel devote most of their time to this activity. Consequently,. relay monitoring was limited to the tabulation of harvest and catch per effort data obtained from the harvest receipts submitted by each relay participan~t.
During Segment 2, the relay program continued in the waters of Raritan and Sandy Hook Bays as well as the Navesink, Shrewsbury, Manasquan and Shark Rivers in Monmouth County. In addition, a lim-ited relay was conducted in Tuckerkton Creek and Cove in southern Ocean County. Harvest and catch per effort data by area are includ-ed in Attachment B.
Table I (Attachment B) includes the relay summary data for 1986.
The 3965 man days of effort in 1986 yielded a total reported harvest for all relay areas of 5,182,560 clams. The majority of shellfishing activity took place in the Navesink and Shrewsbury Rivers, where 2592 man-days of effort yielded a harvest of 3,564,975 clams (68.8% of the total relay harvest). The mean catch per effort for all relay areas in 1986 was 1307 clams/man/day, which is virtually identical to the
1985 figure of 1316 clams/man/day. Tuckerton Cove yielded the high-est catch per effort (1908 clams/man/day) although the harvest from this area (151,664 clams) was less than three percent of the total harvest.
The reported relay harvest for the first eight months of 1987, as shown in Table 2 (Attachment B), was 3,109,170 clams-- a reduc-tion of nearly 11% over the harvest for the same period in 1986.
The Navesink and Shrewsbury Rivers continued to provide a majority (71.47%) of the total harvest. Sandy Hook Bay yielded the highest catch per effort (1603 clams/man/day) when the data is grouped by estuary. The special opening of section 1OF within the Security Zone around the Earle Naval Pier contributed significantly tothe overall catch per effort figure for Sandy Hook Bay. During the 106.18 man days of effort in Section 1OF, shellfishermen had an average catch per effort of 2271 clams/man/day and a total harvest of 241,185 clams.
The observed reduction in harvest is probably due to a combina-tion of factors, primarily decreased densities in some harvest areas and reduced by participation by shellfishermen choosing to work open areas rather than participate in the relay program. The overall catch pereffort for all relay areas in 1987 was 1226 clams/man/day, a 6.2% reduction from the 1986 figure of 1307 clams/man/day.. In ad-dition to this factor, some shellfishermen have reduced their parti-cipation in the program since they have been able to "make a days pay" in approved waters of Oceanand Atlantic Counties. This factor is reflected in the percentage of the total relay harvest which is planted in Tuckerton in southern Ocean County. In 1986, 17.9% of
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the total harvest was planted here. For the first eight months of 1987, however, Tuckerton received only 4.4% of the total relay har-vest. If the approved waters of Ocean and Atlantic Counties con-tinued to yield adequate harvests, it is likely that the decline in relay participation by individuals planting in Tuckerton will con-tinue into 1988.
JOB NO. 4 OYSTER RESEARCH, INVENTORY, AND MANAGEMENT The management of the Mullica River oyster beds is conducted with the objective of providing market size oysters for harvest while at the same time ensuring that the seed beds are not exces-sively depleted. To this end, the oyster beds were monitored to evaluate the oyster spawning season, seed oyster transplant pro-gram, bed condition, and oyster mortality.
The regular monitoring of the seed and market beds continued to determine setting success, mortality and overall bed condition.
Numerous one bushel samples of oyster and shell were collected from each bed. Bed condition was evaluated in terms of the per-centage of oyster withineach sample. Mortality was determined by calculating the percentage of gapers and boxes (paired valves) within a total sample of live oysters, gapers and boxes. Year class structure was determined by dividing samples into the age categories of spat, yearlings, and older oysters. The percentage of spat in each sample is an indication of the successful settle-ment and survival of young-of-the-year oysters.
The regular sampling of the seed beds revealed both French's Point and Moss Point beds to be in poor condition in comparison to data collected over the last ten years (Attachment D). French's Point consisted of 45.2% oyster with a mean annual mortality of 26.5 percent. Moss Point was composed of only 10.4% oyster and had a mean annual mortality of 62.1 percent. These figures re-present a drastic change from the historical averages. For ex-ample, during the period 1975-1985 French's Point and Moss Point
had average bed conditions of 83.8% and 75.8%, respectively. The bed condition of the Moss Point Bed -in 1986- (-1O-.4%-oyster) was- -
86.3% below the average bed condition for the period 1975-1985.
Both seed beds experienced an above average set in 1986. The age composition of French's Point consisted of 21.2% spat with Moss Point consisting of 33.3% spat.
The Mullica River market beds, with infrequent natural set, greater disease and predation pressure, and periodic harvest, has shown a steady decline in bed condition since being planted during the transplant programs of 1979-1981. Given the poor condition of these beds in 1985 (Fitney Bit Bed: 16.8% oyster; Reef Bed: nearly 0% oyster) and the limited manpower of the Bu-reau, the market beds were not sampled in 1986. Reports by shell-fishermen confirm the continuing decline of these beds. In light of this, the market beds will not be opened to harvest during the 1987-1988 season.
The declining bed.condition, which has been observed for the last two years, is attributed to a great extent to infestation by the parasite Haplosporidium nelsoni (MSX) and to a lesser extent to the protistan parasite Perkinsus marinus ("Dermo").
Although in Segment 2 no oysters were sent to the Rutgers Oyster Research Laboratory in Bivalve, New Jersey for histological ex-amination, samples analyzed over the past five years have shown an increasing prevalence of these two parasites, corresponding to the decline in bed condition. The extensive oyster mortalities experienced in the Mullica River estuary since. 1984 were compar-able to those experienced in Delaware Bay during the same period.
ATTACHMENT A
"0
>cIn 0t.1 0
tI~j riH z0 L-1
FIGURE 3 SIZE-FREQUENCY DISTRIBUTION LITTLE EGG HARBOR BAY HARD CLAM POPULATION 11 Mercenaria mercenaria 10 9
8 U n = 6860 pq 7 Ol X = 74.8mm 46 4
3 20 30 40 50 60 70. 80 90 100 SIZE (mm)
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TABLE 1 SRiELLFISH INVENTORY
SUMMARY
TION NUMBER LE86-1 LE86-2 LE86-3 LE86-4 LE86-5 1'ITUDE N 39039.70' 390 39.50' 39°39.30'. 3939.00' 39039.50'
%GITUDE W 74o12.47' 74 012.79' 74 12.90' 74 012.79' 74 012.40' LLECTION DATE .7/28/86 7/28/86 7/29/86 7/29/86 8/4/86 DE ANqD HOURS High + 0.5 High + 1.0 Low + 1.5 LOW + 4.5 High + 4.0
'1PERATURE AIR 29.5 28.5 30.0 28. .27.0 0 ~SI OC W ND 28o0 28.0 ND 25.5 WATER-B ND 28.0 28.0 ND 25.5 D.O. S ND - - ND (ppm) B ND 8.2 7.0 ND 5.6 LINITY S ND - - ND -
(ppt) B ND 27.0 29.0 24.0 pH S ND -- ND - -
B ND 8.1 8.2 ND 7.8 PTH (ft) 10.0 4.0 4.0 10.0 3.5
% GRAVEL BSTATE % SAND
% MUD **
- I * *
- TIMLATED HARD CLAM
- NSITY (#/ftZ) 0.20 0.02 0.02 0.30 010
% SL S.9.5 0.0 0.0 2.3 0.0
)MPIERCIAL LN
)________ 16.7 0.0 0.0 9.3 .33.3 SIZES Cs 54.8 100.0 .50.0 60.4 66.7 CH 19.0 0.0 50.0 28.0 0.0
)MBER CLAN.IS COLLECTED 42 2243 LZE RANGE (mm) 31-84 61-75 59-78 31-94 51-64 SIZE (mm) 597°0. 558.0
_______________ 56.9 67.5 69.0 67.0 MORTALITY 0o00 0.0 0.0 14.3 6.7 ND-No Data
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TABLE 1 SFELLFISH INVENTORY
SUMMARY
STATION NUUB ER ST_________NUMBER_ LE86-6 LE86-7 LE86-8 LE86-9 LE86-10 LATITUDE N 39039.80' 39o39.25' 39°38.88' 390 38.50' 39°38.50 LONGITUDE W 74'12.83' 74o12.15' 74012.47' 740 12.47 74013.11 COLECTONDATE 8COLLECTION 8/4/86 8/4/86 8/4/86 8/4/86 8/4/86 TIDE AND HOURS Hiqh + 5.0 High + 5.5 Low + 0.0 Low + 1.0 High +1.
TEMPERATURE AI R 28.0 27.5 26.5 28.5 27.0 SC -- 26.5 26.5 WATER B B--- 26.5 26.3 D.O. 6.1 5.9 (ppni) B 6.0 5.7 SALINITY S 25.0 21.0 (ppt) B 25.0 24.0 pH s _ [ 7.7 7.7 B 7.8 7.7 DEPTH (ft) 6.0 4.0 4.0 6.0 7.0
% GRAVEL , , *
- SUBSTRATE %SANDD , , * *
% MUD , , * *
- ESTIMATED HARD CLAM DENSITY,(/ftZ 00.02 0.05 0.13 0.21 0.33 DENSITY t"-
% SL 0.0 0.0 0.0 15.0 3.1 COMMERCIAL LN 28.6 20.0 23.1 20.0 9.4 SIZES CS 71.4 60 61.5 60.0 34.4
.CH 0.0 20 15.4 5.0 53.1 NUMBER CLAMS COLLECTED 7 5 13 20 32 SIZE RANGE (mm) 54-72 53-78 41-82 26-79 36-97 X SIZE (mm) 63.4 67.2 63.7 59.4 73.5
% MORTALITY 0.0 0.0 0.0 4.8 8.6
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TABLE 1 SRELLFISH INVENTORY SUMI4ARY
'ATION NUMBER LE86-11 LE86-12 LE86-13 LE86-14 LE86-15
\TITUDE N 39038.25' 39038.50' 39 38.25' 3939.00' 39°39.05'
)NGITUDE W 74o13.11, 74 013.75' 74 12.15' 74 11.19' 74011.30'
)LLECTION DATE 8/5/86 8/5/86 8/5/86 8/6/86 8/6/86
- DE AND HOURS High + 4.0 High + 5.0 Low + 0.0 High + 1.0 High + 2.0
'MPERATURF AIR 30.0 28.0 29.0 27.0 27.5 OC WATER S ND ND 27.0 ND B ND ND 27,0 ND D.Q. S ND ND - 5.2 ND (ppm) B ND ND 7-4 5.0 ND
\LINITY S ND ND - 22.0 ND (ppt) B ND ND 25.0 25.0 ND pH S ND ND - .7.3 ND B ND ND 7.7 7.6 ND.
]PTH (ft.) 4.5 6.0 4.0 5.0 5.0
% GRAVEL , , * *
- JBSTRATE % SAND . .
- I * *
% MUD , * * *
- 3TIMATED HARD CLAM0 oNSITY (4/ft ) 0.01 000 0.13 0.12 0.0
% SL 0.0 0.0 0.0 0.0 0.0 DOIMERCIAL LN 50.0 0.0 15.4 16.7 0.0 SIZES CS 50.0 33.3 76.9 75.0 0.0 CH 0.0 66.7 7.7 8.3 0.0 uMKBER CLAMS COLLECTED 4 9 13 12 0 IZE RANGE (mm) 50-74 57-87 50-83 53-84 SIZE (rmm) 57.5 65.3 65.3 66.5 MORTALITY 0.0 0.0 0.0 33.3 0.0
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TABLE 1 SSELLFISH INVENTORY
SUMMARY
STATION NUMBER LE86-16 LE86-17 LE86-18 LE86-19 LE86-20 LATITUDE N 0 000 0 39 39.25' 39 38.75' 39 38.50' 39 38.75' 39 38.00' LONGITUDE W 74011.35' 74o12.15' 74011.83' 74 11.51' 74 012.00' COLLECTION DATE 8/6/86 8/6/86 8/7/86 8/7/86 8/12/86 TIDE AND HouRs High + 2.5 High + 3.5 High + 1.0 High + 2.0 Low + 2.0 TEMPERATURE AIR 29.0 28 . 5 27.0 28.0 24.0 OC S ND ND 27.0 ND 24.5 WATER +/-______
B ND ND 27.0 ND 24.5 D.0. S ND ND - ND (ppm) B ND ND 6.2 ND 5.3 SALINITY S ND ND ND -
(ppt) B ND ND 25.0 ND 25.0 pH S ND ND - ND -
B ND ND 7.6 ND 7.6 DEPTH (ft) 5.0 4.0 4.0 4.0 4.0
%GRAVEL , * *
- SUBSTRATE % SAND * * *
% MUD * * * *
- ESTIMATED DENSITY HARD
(#/ft') CLAM01 0.20 0.1 0.01 0.05 0.]_5
% SL 0.0 0.0 0.0 0.0 3.3 COMMERCIAL. LN 2.0 16.7 25.0 40.0 6.7 SIZES CS 94.0 83.3 50.0 60.0 57,0 CH 4.0 0.0 25.0 0.0 33.0 NUMBER CLAMS COLLECTED 49 12 8 5 30 SIZE PRANGE (mm) 42-91 39-75 14-82 39-74 33-92 X SIZE (mm) 73.3 63.3 58.9 57.0 69.2
++ + t 3,2 37.5 37.5 3°ý2
% MORTALITY 3.9 7.7 7.7 27.3 27.3
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TABLE I SRELLFISH INVENTORY
SUMMARY
rATION NUKBER LE86-21 LE86-22 LE86-23 LE86-24 LE86-25 kIUF N0 39 38.00' 0
39 37.75' 0
39 38.00' j 0 39 38.25' 0
39 37°85' DNGITUDE W 74o12.47' 74 12.15' 740 1151' 74 11.34' 74011.80, DLLECTION DATE 8/12/86 8/12/86 8/12/86 8/12/86 8/12/86 EDE AND HOURS Low + 3.0 Low + 4.0 Low + 5.0 Low + 5.5 High + 0.0 EMPERATURE AIR 24.5 24.0 23.0 23.0 23.0 0C S ND ND ND ND 24.0 WATER B ND ND ND ND 24 0 D.O. S ND ND ND ND -
(ppm) B ND ND ND ND 6.4 ALINITY S ND ND ND ND (ppt) B ND ND ND ND 25.0 pH S ND ND ND ND -.
B ND ND ND ND 7.6 EPTH (ft) 3.0 4.0 4.0 4.0 3.5
% GRAVEL * * * *
- UBSTRATE % SAND * * * * *
% MUD * * * *
- STIMATED HARD CLAM 0.1 0.15 ENSITY (#/ft') 0.i_0.15_0.ii 0.i0 0.05
% SL 0.0 0.0 3.5 0.0 0.0 OMMERCIAL LN 37.5 33.3 22.8 33.3 40.0 SIZES CS 62.5 40.0 45.6 16.7 .60.0 CH 0.0 24.7 38.1 50.0 0.0 UMBER CLAMS COLLECTED 8 15 57 6 5 IZE RA4NGE (mm) 48-64 46-74 32-92 42-94 58-73 SIZE (ram) 63.0 60.2 67.8 71.5 66.2 MORTALITY 0.0 6.3 0,0 0..0 ().
-27 -
TABLE 1 SHELLFISH INVENTORY
SUMMARY
STATION NUM]BER LE86-26 LE86-27 LE86-28 LE86-29 LE86-30 LATITUDE N 39 38.50' 39037.70' 39°37.25' 39°37o50' 39 37.00' LONGITUDE W 74o11.19, 74o11.80' 74012.05' 74.012.151 74012.15' COLLECTION DATE 8/13/86 8/13/86 8/13/86 8/14/86 8/14/86 TIDE AND HOURS Low + 1.0 Low + 2.0 Low + 3.0 Low + 0.5 Low + 1.i-TEMPERATURE AIR 22.5 23.0 24.0 23.0 24.0 SWATERS 24.2 ND ND 23.5 ND B 24.2 ND ND 23.5 ND D.0. S 4.8 ND ND - ND (ppm) B 4.7 ND ND 6.6 ND SALINITY S 25.0 ND ND - ND (ppt) B 25.0 ND ND 29.0 ND p.H S 7.9 ND ND ND B 7.9 ND ND 8.1 ND DEPTH (ft) 10.0 4.0 7.0 4.0 4.0
% GRAVEL , * * ,_,
SUBSTRATE % SAND * , * * *
% MUD , * * ,
ESTIMATED HARD CLAM 0 DENSITY (4/ftZ) 0.1 0.1 0.44 0.1 0.14
% SL 9.1 0.0 4.5 0.0 0o0 COMMERCIAL LN 0.0 0.0 18.2 33.3 7.1 SIZES CS 54.5 100.0 55.9 66o7 57.2 CH 36.4 0.0 11.4 0.0. 35,7 NUMBER CLAM4S COLLECTED 11 6 44* 9 14 SIZE RANGE (mm) 36-85 1 58-71 30-84 38-75 54-84
-( SIZE (.m ) 72.8. 64.5 66.0 60.3 69.9
% MORTALITY 21.4 0.0 36.2 10.0 6.7
- 28-TABLE 1 SnELLFISH INVENTORY
SUMMARY
STATION NU*BER LE86-31 LE86-32 LE86-33 LE86-34 LE86-35 LATITUDE N 39036.75' 39036.00' 39035.75' 39035.50' 39035.25' LONGITUDE W 74O12.50' 74013.11' 740 13.43' 74013.75! 74 14.07' 2-OLLECTION DATE 8'/14/86 8/14/86 8/14/86 8/14/86 8/14/86 rIDE AND HOURS High + 2.0 Low + 2.5 Low + 3.0 Low + 4.0 Low + 5.0 FEMPERATURE AIR 24.0 24.0 24.0 25.0 25.0 C WATER S ND ND ND ND 24o0 B ND ND ND ND 24.0 D.O. S ND ND ND ND -
(ppm) B ND ND ND ND 705 SALINITY S ND ND ND ND -
(ppt) B ND ND ND ND 29.0 pH S ND ND ND ND _
B ND ND ND ND 8.3 DEPTH (ft) 4.0 4.0 4.0 8.0 4.0
% GRAVEL , * * *
- SUBSTRATE % SAND * * * * *
%MUD *
- ESTIMATED HARD CLAM 01J _I
- 0.12 0o11 0.14 0. .2 0.15 DENSITY (#/ft SL 0.0 o..o 7.1 0.0 7.7 COM.MERCIAL LN 25.0 27.3 28.6 5.6 30.8 SIZES CS 68.3 36.3 j 50.0 11.1 30.1 CH 16.7 36.4 1403 83.3 30.8 NUMBER CLAMS COLLECTED 12 11 14 .18 13 SIZE RANGE (mm) 38-79 38-87 j 0-86 49-97 32-86 X SIZE (mm) .63.0 68.2 60.4 85.2 59.1
% MORTALITY( 0.0 0.0. 17.6 10.0 7,1
- 29 -
TABLE 1 SSELLFISH INVENTORY
SUMMARY
STATION NUMBER LE86-36 LE86-37 LE86-38 LE86-39 LE86-40 0
LATITUDE N 39035.50' 39035.75' 39035.25!' 39 35.10' 39037.25'
{
LONGITUDE W 74 13.43' 74013.11 74a13.75' 74 13.80' 74 12.79' COLLECTION DATE 8/26/86 8/26/86 8/26/86 8/26/86 9/3/86 TIDE AND HOURS Low + 3.0 Low + 4.0 Low + 5.0 High + 0.0 High + 3.
TEMPERATURE AIR 23.5 23.0 24.0 24.0 23o5 oC WATER 20.7 ND ND -
B 20.7 ND ND D.O. S 7.10 ND ND - -
(ppm) 6.4 ND ND 7 o3 6.4 SALINITY S 24.0 ND ND-24.0 25.0 (ppt) B 25.0 ND ND 24.0 25.0 pH S 7.9 ND ND - -
B 7.9 ND ND 7.9 8.1 DEPTH (ft) 10.0 8.0 4.0 4.0 4.0
% GRAVEL * * * *
- SUBSTRATE % SND * * * * *
% MUD * * * *
- ESTIMATED HARD CLAM 0.33 0.24 0.04 DENSITY (#/ft) 0.31 0.20 10 SL 2.1 10.0 5.9 10.3 0.0 COMMERCIAL LN 2.1 6.0 14.7 28.2 . 20.0 SIZES CS 51.0 48.0 35.3 53.9 80.0 CH 44.8 46.0 39.1 7.6 0ý0 NUMhBER CLAM4S. COLLECTED 47 50 34 39 5 SIZE RANGE (mm) 31-94 24-95 20-90 25-90 49-.67 X SIZE (_m) 73.9 66.7 69.0 59.3 59.4
%MORTALITY I1(6o.l 3.8 8.1 9.3 1.6G,,7
- 30 -
TABLE 1 SHELLFISH INVENTORY
SUMMARY
'ATION NUXBER LE86-41 LE86-42 LE86-43 !LE86-44 LE86-45 kTITUDE N 39 037.50' =39o37.50' 39 037.00' 39°36.75' 39 36.75'
)NGITUDE W 74 13.11' 74 012.47' 74 012.40' 74 12.79' 74O 12.55'
)LLECTION DATE 9/3/86 .9/3/86 9/3/86 9/3/86 9/3/86
ýDE AND HOURS High + 4.0 High + 4.5 High + 5.0 High + 5.5 Low + 0.0
`MPERATURE AIR 22.5 23.0 24.5 24.5 24.5 OC WATER S ND ND ND ND ND B ND ND ND ND ND D.O. S ND ND ND ND ND (ppm) B ND ND ND ND ND
%LINITY S ND ND ND ND ND (ppt) B ND ND ND ND ND pH S ND ND ND ND ND B ND ND ND ND ND
- PT (ft) .6.0 5.0 4.0 4.0. 4.0
% GRAVEL , * , , ,
JBSTRATE % SAND * , , , ,
% MUD * , * *
- STIMATED HARD CLAM ENSITY (#/ftb) 0.11 0.10 0.30 0.14 0.10
% SL 0,0 0.0 6.9 0.0 0.0 OMMERCIAL LN 26.3 12,5 17.2 14.3 33.3 SIZES CS 73.7 75.0 65.6 85.7 66.7 CH 0.0 12.5 10.3 0.0 0.0 UMBER CLAMIS COLLECTED 19 8 29 14 9 IZE RANGE (mm) 48-76 51-79 18-81 52-76 39-76 SIZE (mm) 65.2 65.6 62.7 6404 .59.7 MORTALITY 0.0 0.0 3.3 6.7 10.0
- 31.-
TABLE 1 SSELLFISH INVENTORY
SUMMARY
STATION NUMBER LE86-46 LE86-47 LE86-48 LE86-49 LE86-50 LATITUDE N 39 036.55' 39038.75' 39 038.25' 39 038.00' 39037.75' LONGITUDE W 74012.79' 74 014.07' 74 014.07' .74013.75' 74 013.43' COLLECTION DATE 9/3/86 9/4/86 9/4/86 9/4/86 9/4/86 TIDE AND HOURS Low + 1.0 High + 2.0 High + 3.0 High + 3.5 High + 4 TEMPERATURE AIR 24.5 21.0 22.0 22.0 22.0 EC WAETAURR 21.4 20.7. ND ND ND B 21.4 20.6 ND ND ND D.O. S 7.7 7.1 ND ND ND (ppm) B 6.8 6.8 ND ND ND SALINITY S 26.5 26.0 ND ND ND (ppt) B 26.5 26.5 j ND ND ND pH S 8.1 8.1 ND ND ND B 8.1 8.1 ND ND ND DEPTH (ft) 10.0 5.0 5.0 5.0 5.0
% GRAVEL , , , ,
SUBSTRATE % SAND * * , , ,
% MUD *
- j * *
- ESTIMATED HARD CLAM 0 0 DENSITY (#/ft2 ) 0.10 0°05 0.1Q 0.03 0.05
% SL 6.3 0.0 0.0 33.3 20,0 COMMERCIAL LN 25.0 0.0 . 1.1 0.0 60.0 SIZES CS 43.8 62.5 88.9 66,7 20.0 CH 24.9 37.5 0.0 0.0 0.0 NU*BER CLAMS COLLECTED 16 8 9 3 5 SIZE PANGE (mm) 36-88 68-94 40-67 32-62 52-59 X SIZE (mm). 62.3 75.4 60.7 52.0 51,0
% MORTALITY 46.7 20,0 0.0 0.0 0.0
_ 32 -
TABLE 1 SPELLFISH INVENTORY
SUMMARY
CATION NUMBER LE86-51 LE86-52 LE86-53 LE86-54 LE86-55 kTITUDE N 39034.75' 39 34.62' 39 033.95' 39 37.50' 39037.00,
_NGITUDE W 74 020.20' 74 020.50' 74 20.10' 74 012.79' 74 13.11,
)LLECTION DATE 9/8/86 9/8/86 9/8/86 10/1/86 10/1/86
'DE AND HOURS High + 3.5 High + 4.5 Low + 4.0 Low + 4.5 High + 2.0
!MPERATURE AIR 17.5 17.5 20.5 .24.5 24.5 0C S ND 21.5 ND WATERD B ND 21.5 ND D.O. S ND 6.7 ND (ppm) B ND - 6.7 ND kLINITY S 28.0 ND 29.0 28.0 ND (pp t) ND 29.0 28.0 ND pH S _ ND 8.1 7.5 ND B 8.1 ND 8.1 7.5 ND EPTH (ft) 4.0 5.0 5.0 6.0 5.0
% GRAVEL , , , *
- UBSTRATE % SAND , , , * *
% MUD,,,**
STIMATED HARD CLAM 0.69 0.85 0.10 0.21 0.20 ENSITY (#/ftZ)
% SL 2.9 2.2 0.0 5.0 0.0 OM.ERCIAL LN 10.3 6.6 10.5 10.0 41,2 SIZES CS 56.9 55.0 47.4 65.0 47.1 CH 29.9 36.2 42.1 20.0 11.7 fUMBER CLAMS COLLECTED 174 271 19 20 17 IZE RANGE (mm) 20-93 26-95 38-96 52-89 47-86 SIZE (mm) 68.9 71.2 74.3 70.8 62ý3 iMORTALITYf 9.1 5*.4 9.5 4.8 5.6
- 33 -
TABLE 1 SHELLFISH INVENTORY
SUMMARY
STATION NUM[BER LE87-56 LE87-57 LE87-58 . LE87-59 LE87-60 LATITUDE N 39 34.351 39034,50' 3903.4.25' 39034.00' 39 038o55' LONGITUDE W 0 0 74°13.901 74o14.39' 74 0 14.39' 0 74015.03 74014.441 COLLECTION DATE 7/13/87 7/13/87 7/13/87 7/13/87 7/16/87 TIDE AND HOURS Low + 2.5 Low + 4,0 Low +5.0 High + 0.5 Low + 0.E TEMPERATURE AIR 31.0 ND ND ND "
oc S 26.1 ND ND ND 23.2 WATER-
.26.1 ND ND ND 2..6 D.O. S 7.5 ND ND ND (ppm) B 6.7 ND ND ND 7.9 SALINITY S 28.0 ND ND ND -
(ppt) B 28.5 ND ND ND 23.0 pH S 8.5 ND ND ND -
B 8.5 ND ND ND 8.3 DEPTH (ft) 7.0 5.0 5.0 5.0 4.0
% GRAVEL**** j S UB,. . % SA3DD ,* * *
% MUD * * *
- ESTI.MATED HARD CLAM DENSITY (#/ft 0.77 0.08 1 0.30 0.11 0.15
% SL 5.4 40.0 6.7 0.0 0.0 COM.MERCIAL LN 19.1 20.0 3.3 0.0 0.0 SIZES CS 41.1 30.0 40.0 0.0 38.5 CH 44.4 10.0 50.0 100.0 61.5 NUM-BER CL.,AMS COLLECTED 87 10 30 10 13 SIZE RANGE (mm) 23-96 23-77 35-91 89-105 57-86 X SIZE (rIn) 69.0 49.2 69.8 90.6 77.3
% MORTALITY 7.4 0.0 0.0 0.0 7.1
TABLE 1 SRELLFISH INVENTORY
SUMMARY
- TATION NUýMER LE87-61 *LE87-62
- LE87-63 LE87-64 LE87-65
.ATITUDE N 39038.25' 39 38.00' 39 037.75' 39 37.75' 390 37o30' L0O4GITUDE W 0 74 14.71' 74014.39' 1 0 74014.07' 0
74 15.30' 74 0
15.03' OLLECTION DATE 7/16/87 7/16/87 7/16/87 7/17/87 7/17/87 TIDE AND HOURS Low + 2.0 Low + 3.0 Low + 5.0 Low + 0.0 Low + 0.5 TEMPERATURE AIR 27.0 23.0 23.0 25.0 25.0 WATER SC S ND ND 23.6 22.5 ND A ND ND 23.6 22.5 ND D.O. S ND ND - ND (ppm) B ND ND 10.4 j 8.5 ND SALINITY S ND ND - I" - ND (ppt) B ND ND 24.0 23.0 ND pH ND ND - - ND B ND ND 8.3 7.9 ND DEPTH (ft) 5.0 4.5 5.0 j 4.0 8.0
% GRAVEL
- 3**
SUBSTRATE % SAND
- I**
% MUD
- j**
ESTIMATED HARD CLAiM 0 DENSITY (*/ft') 0.23 0.14 0.11 0.09 0.07
% SL 0.0 0.0 0.0 0.0 0o.0 COMMERCIAL LN 0.0 42.9 36.4 0.0 0.0 SIZES CS 64.7 57.1 63.6 58.8 14.3 CmR 35.3 0.0 0.0 41.2 85.7
,UllmiBER CLAMS COLLECT . 3 14 11 17 { 14 SIZE R4NGE (mm) 57-91 40-75 38-72 69-99 71-95 X SIZE (sIR) 76.6 51.8 57.5 73.4 82,9 S17 .1 0.0 0.0 2(.2 .] O°7
'-l0RT.,LI`7Z
35 -
TABLE 1 SHELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-66 LE87-67 LE87-68 LE87-69 LE87-70 LATITUDE N 39037.75! 39°37.00' 39o37.50' 39 37.25' 39037.00' LONGITUDE W 74 14.71' 74 015.03' 74 013.75' 74 013.43' 74 13.75' COLLECTION DATE 7/17/87 .7/17/87 7/22/87 7/22/87 7/22/87 TIDE AND HOURS Low + 1.5 Low + 2.5 High + 2.0 High + 3.0 High + 4.
TEMPERATURE AIR 26.0 25.0 27.5 27.0 27.0 oC S ND 22.6 25.5 ND ND WATER B ND 22.8 25.0 ND ND D.O. S ND 8.6 7.9 ND ND (ppm) B ND 8.7 7.7 ND ND SALINITY S ND 24.0 25.0 ND ND (ppt) B ND 24.0 26.0 ND ND.
pH S ND 8.3 8.2 ND ND B ND 8.3 8.2 ND ND DEPTH (ft) 6.0 6.0 5.0 .5.0 5.0
% GRAVEL * * * *
- SUBST*,ATE % SI7 * *1* *
% MUD * * * *
- ESTIMATED HARD CLAM DENSITY (/U/ft-) 0.13 0.28 0.26 0.14 0.20
% SL 0.0 0.0 9.1 0.0 0.0 COMMERCIAL LN 0.0 3.4 57.6 7,1 25.0 SIZES CS 29.2 24.1 33.3 92.9 65.0 CH 60.8 72.5 0.0 0.0 10.0 NUtMBER CLAMS COLLECTED 24 29 33 14 20 SIZE RANGE (mm)58-102 49-99 30-73 43-74 48-80 XSIZE (mm) 82.5 79.0 57.2 62.8 61o3 7.7171
- 82. 0, 6OTLT2.85 61.3
% MdORTALITY 7.7 17.1 10.8 12.5 4.8
- 36 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
0 0 0 0 TATION NUMBER 0 LE87-71 LE87-72 LE87-73 LE87-74 LE87-75 ATITUDE N 3.9 37.25' 39 36.75' 39 36.50' 39 37.00' 39037.25' ONGITUDE W 74014.25' 74013.43, 74013.11, [74014.39' 74014o71, OLLECTION DATE 7/22/87 7/23/87 7/23/87 7/23/87 7/23/87 IDE AND HOURS High A 4.5 High + 0.0 High + 1.0 High + 2.5 High + 3.0 EMPERATURE AIR 27.0 28.5 31.5 29.0 28.0 WTC S ND 26.5 ND ND ND WATER B ND 26.0 ND ND NP D.O. S ND - ND ND ND (ppmn) B ND 77..3 ND ND ND ALINITY S ND ND ND ND (ppt) B ND 26.0 . ND ND ND pH S ND - ND ND ND B ND 8.4 ND ND ND EPTH (ft) 5.0 4.5 5.0 6.0 5.0
% GRAVEL * * * *
- UBS TRATE % SAND * * *
% MUD * *
- STIMATEDEOHARD CLAIM I Y t0.40
(/ 0 0.05 ! 0.11 0*25 0.26
% SL 12.8 0.0 0.0 12.0 0.0
- OMMERCIAL LN 15.4 0.0 27.3 4.0 0.0 SIZES CS 41.0 80.0 63.6 48.0 34.6 CH 31.8 20.0 9.1 46.0 65.4 IUMlBER CLAMS COLLECTED 39 5 11 25 26
- IZE RANGE (rm) 28-89 64-79 53-83 31-93 57-97 SIZE (rmm) 64.3 69°0 66.3 67.7 78,2 MORTALITY 7.1 37.5 8.3 3.8 10.3
-. 37 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-76 LE87-77 LE87-78 LE87-79 LE87-8(
LATITUDE N 39 37.50' 39 036.75' 39 36.25' 39 36.50' 39°36.75' LONGITUDE W 74014.391 74o15.35' 74013.11' .74013.75' , 74014.07' COLLECTION DATE 7/23/87 7/23/87 7/24/87 7/24/87 7/24/87 TIDE AND HOURS High + 4.0 High + 4.5 Low + 5.5 High + 0.5 High + 1.
TEMPERATURE AIR ND 27.0 28.0 29.0 oC WATER ND 27.0 25.3 ND ND B ND 26.9 25.3 ND ND D.O. S ND ND ND (ppm) B ND 8.2 6.5 ND ND SALINITY S ND - - ND ND (ppt) B N.D 26.0 26.0 ND ND pH S ND - ND ND B ND 8.4 8.4 ND ND DEPTH (ft) 3.0 5.0 5.0 4.5 5.0
% GRAVEL * * * *
- SUBSTRATE % SND * * * * *
% MUD * * * *
- ESTIMATED HARD CLAM.
DENSITY (4/ftz) 0.05 0I55 0.08 0.09 0.17
% SL 0.0 4.7 10.0 9.0 0.0 COMMERCIAL LN 20.0 5.8 0.0 18.1 11.7 SIZES 80.0 18.6 80.0 54.5 76.5 CH 0.0 70.9 10.0 18.4 12.8 NUMJBER CLAMIS COLLECTED 5 86 10 11 17 SIZE RANGE (rm) 53-72 33-97 34-79 27-84 52-80 SIZE (.mm) 61.2 77.5 64.8 62.5 67.6
% MORTALITY 28.6 9 .*0 15*.4 19.0 13.1
- 38 -
TABLE 1 SS1ELLFISH INVENTORY
SUMMARY
FATION NUMBER
_ LE87-81 LE87-82 LE87-83 LE87-84 LE87-85
\TITUDE N 39 036.50' 39 036.75' 39 36.50' 39 036.25' 39 036.00'
)NGITUDE W 74 014.39' 74 014.71' 74 01503' 74 014.71' 74 014.39f JLLECTION DATE 7/24/87 7/24/87 7/27/87 7/27/87 7/27/87 EDE AND HOURS High + 1.5 High + 2.5 Low + 2.0 Low + 3.5 Low + 4.0 i1 AIR 28.5 28.5 26.0 26.0 25.5 OC WATER ND 25.8 24.6 ND ND B ND 26.0 24.4 ND ND D.O. S ND - ND ND (PP 6 ) B ND 7.2 6.1 ND ND kLINITY S ND ND ND (ppt) B ND 26.0 27.0 ND ND pH S ND - ND ND B ND 8.4 8.4 ND ND EPTH (ft) 5.0 6.0 5.5 4.0 4.0
% GRAVEL , , , ,
- L3BSTRATE % SAND ,D ,, , ,
% MUD * , , , ,
STIMATED HARD #/DHCLAM
) 0.32 CL0.10 0.21 0.06 0.02 ENSITY (#/ft
% SL 0.0 2.9 3.1 0.0 0.0 OMMERCIAL LN 0.0 8o8 0.0 28.6 50.0 SIZES CS 90°0 85.3 47.0 42.9 0.0 CH 10.0 3o0 5909 29.9 50, 0 UMBER CLAM-dS COLLECTED 10 34 32 7 2 IZE RANGE (mm) 58-81 34-86 j 37-96 40-96 46-80 SIZE (.mm) 66.6 70.6 74.6 68.1 63.0 MORTALITY 0.0 5.6 3.0 14.3 0.0
- 39-TABLE 1 SRELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-86 LE87-87 LE87-88 LE87-89 LE87-90 LATITUDE N 39036.25' 39 36.00' 39 35.75' 39 35.50' 39 035.75' LONGITUDE W 74014.07' 74013°751 74014.07' 74° 14.39' 74 14.71' COLLECTION DATE 7/27/87 7/27/87 7/27/87 7/27/87 7/27/87 TIDE AND HOURS Low + 5.0 High + 0.0 High + 1.0 High + 1.5 High + 2.
TEMPERATURE AIR 26.0 26.5 27.0 27.0 27.0 0C WATERS ND ND ND ND 26.4 B ND ND ND ND 26.5 D.0. . ND ND ND ND -
(ppmf) B ND ND ND ND 9.4 SALINITY S ND ND ND ND -
(ppt) B ND ND ND ND 28,0 pH s ND ND ND ND j B ND ND ND ND 8.6 DEPTH (ft) 4.0 4.0 5.0 6.0 4.0
% GRAVEL * * *
- SUBSTRATE % SAND * * * *
% MUD * * * *
- ESTIMATED HARD CLA.0 0.01 0.26 0.24 DENSITY (4/ft
% SL 7.7 0.0 0.0 0.0 4.2 COM1,1ERCIAL LN 30.8 100.0 50.0 { 25.0 25.0 SIZES CS 30.8 0.0 50.0 50.0 3705 CH 31.7 0.0 0.0 25.0 33.1 NUMBER CLAMS COLLECTED 13 3 2 40 24 SIZE RANGE (rm) 25-88 43-57 4162 38-88 33-92 X SIZE (mun) 63.2 47.0 52.5 64.7 67,9
-- MOTLIY1. 003. .
% MORT ALITYf 13 .3" 0.0 333 .3 2.2 4 . 4.0
- 40 -
TABLE 1 SHELLFISH IN-VENTORY
SUMMARY
TATION NUMBER LE87-91 LE87-92 LE87-93 LE87-94 LE87-95
ýATITUDE N 39 0 36.25'
_TITUDE___
30 39o36.00, 39 0 35.50' 0o 39035.75' 39 36.25'
,ONGITUDE W 74015.35' 74 15.03' 74 015.03' 74 15.35' 74 16.65'
- OLLECTION DATE 7/28/87 7/28/87 7/28/87 7/28/87 7/29/87
'IDE AND HOURS Low + 2.5 Low + 3.5 High + 0.0 High + 1.0 Low + 4.5
'EMPERATURE AIR 26.0 27.0 26.5 26.5 23.5 WATER 25.4 ND ND 24.1 24.6 B 25.5 ND ND 23.9 24.°5 D.O. S 7.0 ND ND 8.4 7.3 (ppm) B 6.5 ND ND 8.0 7o1
- ALINITY S 26.0 ND ND 28.0 27.5 (ppt) B 26.0 ND ND 28.0 28.0 pH S 8.4 ND ND 8.4 8.2 B 8..4 ND ND 8.4 8.2
)EPTH (ft) 11.0 7.0 7.0 8.0 8.0
% GRAVEL , , , * ,
- UBSTPATE % SANDD * * * ,
% MUD , * , * *
'STIMATED HARD CLAM
)ENSITY (#/ft*) 0.13 0.50 0.30 0.30 0.21
% SL 0.0 0.0 1.7 2.1 0.0
-OMMERCIAL LN 0.0 0.0 3.4 2.1 2.0 SIZES CS 19.2 24.5 10.2 23.4 41.7 CH 80.8 75.5 85.7. 72.4 56.3
>iUMBER CLAmS COLLECTED 26 106 59 47 48 SIZE RANGE (rmm)61-102 60-96 29-98 32-101 51-90
(, SIZE (in) 87.0 81.9 84.0 80.1 77.3
% MORTALITY 18.8 4o5 13.2 .3 1 6 Ar .- A - ý I -- , , - -A ý - -, ND-No Data
- 41-TABLE 1 SFIELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-96 LE87-97 LE87-98 LE87-99 LE87-100 LATITUDE N 39036.00, 36°25' 39036.00' 39035.25, 39 035.50' LONGITUDE W 74'16.97' 74'17.29' 74016.97' 74015.35' 74 015.67' COLLECTION DATE 7/29/87 7/29/87 7/29/87 8/3/87 8/3/87 TIDE AND HOURS Low + 5.5 High + 0.0 High + 1.0 High + 4.5 High + 5.(
TEMPERATURE AIR 23.5 23.5 23.5 25.5 27.5 0 CWATER S ND ND 25.0 25.5 ND B ND ND 24.8 23.4 ND D.O. S ND ND 7.8 6.4 ND (ppm ) B ND ND 7.6 6.4 ND SALINITY S ND ND 27.5 28.0 ND (ppt) B ND ND 27.5 28.0 ND pH S ND ND 8.2 8.2 ND B ND ND 8.2 8.2 ND.
DEPTH (ft) 7.0 8.0 8.0 7.0 7.0
% GRAVEL , , * *
- SUBSTRATE. % SAND * * * * *
% MUD * * * *
- ESTIMATED HARD CLAM DENSTIMATED HR C0.10 0.05 0.32 0.85 0.49 DENSITY * (tt/ft~)________________ ____
% SL 0.0 0.0 3.2 0.6 0.0 COMMERCIAL LN 0. 0 .0 6.5 11.0 3.4 SIZES CS 11.1 0.0 32.3 18.4 39.3 CH 88.9 100.0 68.0 70ýO 57.13 NUMLBER CLA.MS COLLECTED 9 8 31 163 61 SIZE RANGE (mm) 71-95 83-100 29-90 37-98 38-98 X SIZE (ram) 84.0 100.0 74.8 70.7 77,,8
% MORTALITY1 30.8 46.7 22.5 9.44 1.6
- 42-TABLE 1 SPELLFISH INVENTORY
SUMMARY
TATION NUMBER LE87-101 LE87-102 LE87-103 LE87-104 LE87-105 ATITUDE N 39 035.25' 39 035.50' 39 35.75' 39036.00' 39 36.00' 0
,ONGITUDE W 74016.01, 74 16.33' 74016.65' 74016.33' 74017. 61' OLLECTI ON DATE 8/3/87 8/3/87 8/3/87 8/3/87 8/4/87 IDE AND HOURS Low + 2.0 Low + 3.0 Low + 3.5 Low + 4.5 High + 4°0
'EMPERATURE AI R 29°0 29.0 28.0 29.0 28.0 OC S ND ND ND 24.7 24.8 WATER-B ND ND ND 24.5 24.4 D.O. S ND ND ND - 6.2 (PP-) B ND ND ND 7.8 5.9 ALINITY S ND ND ND 27.5 26.0 (ppt) B ND ND ND 27.5 28.0 pH S ND ND ND 8.4 8.2 B ND ND ND 8.4 8.4
)EPTH (ft) 8.0 7.0 9.0 9.0 7.0
% GRAVEL , , , , ,
STSTRATE - SAND , , , * ,
%MUD , , , , ,
STIMATED HARD CLAM JENSITY (#/ft' 1.00 0.66 0.20 0.08 0J.6
% SL 0.0 1.5 0.0 0.0 0.0 2OMPIERCIAL LN .4.1 0.0 0.0 11.9 0.0 SIZES CS 24.8 32.3 23.8 23.8 30.0 CH 71.1 66.2 76.2 64.3 70.0 qUMBER CLAMS COLLECTED 145 65 21 42 31 3IZE RANGE (mrm)42-107 29-94 64-94 49-98 72-102 SIZE (mm) 79.9 70.8 81.7 77.1 844i
.% MRTAITY .0 .5 5,0 8.811.
AMORT ALI TY 4.0 8.5 25.0 28.8 11.4 1
mn-mn r).)t--n
TABLE 1 SPELLFISH IUVENTORY
SUMMARY
STATION NUMBER . LE87-106 LE87-107 LE87-108 LE87-109 LE87-110 LATITUDE N 39 0935.50' 39035.25' 39 35.00' 39 034.75' LONGITUDE W 74 017.29' 74 016.97' 74 16.65' 74 016.33' 74 1601' COLLECTION DATE 8/4/87 8/4/87 8/4/87 8/4/87 8/4/87 TIDE AND HOURS High + 4.0 High + 5.0 High + 5.5 Low + 0.0 Low + 4o0 TEMPERATURE AIR 29.5 30.0 32.0 30.0 30o0 0C S ND ND ND ND ND WATERDN
.0ND ND ND ND ND D.O. S ND ND ND ND. No (ppm) B ND ND ND ND ND SALINITY S ND ND ND ND ND (ppt) B ND ND ND ND ND pH S ND ND ND ND ND B ND ND ND ND ND DEPTH (ft) 8.0 8.0 6.0 7.0 ].1.0
% GRAVEL *
- SUBSTRATE % SAND , ,
% MUD
- ESTIMATED HARD CLAM 0.07 0.25 0.60 0.20 0,27 DENSITY (#/ft 2 )
ii i SL 9.4 7.9 0.0 6.5 1i7 COMMERCIAL LN 15.6 10.5 0.0 9.7 5.2 SIZES CS 40.6 39.5 36.0 16.1 34..5 CH 35.4 53.1 64.0 67.7 59.6
-i-i, . 1 NUMJBER CLANS COLLECTED 32 38 61 31 58
-H + I SIZE RANqGE (mm) 31-90 26-90 63-98 33-97 31-105 N
x SIZE (.mm) 67.6 68.0 76.2 76.4 86.5 H I 1 10,3 6.1
% 0.0 11.6 -33
% MORTALI MORTALIPL TY 0.0 11.6 10.3 6.1
TABLE 1 SRELLFISH INVENTORY
SUMMARY
a 1~
TATION NUMBER LE87-111 LE87-112 LE87-113 LE87-114 LE87-i15 ATITUDE N 39 34.50' 39 035.25' 39 35.00' 39 34.75' 39034.50'
,ONGITUDE W 74015.35' 74014o71' 74015.03' 74014.71, 74015.033
- OLLECTION DATE 8/4/87 8/10/87 8/10/87 8/10/87 8/10/87
'IDE AND HOURS Low + 2.0 Low + 4.0 Low + 4.0 Low + 5.5 High + 0.0
'EMPERATURE AIR 30.0 26.5 26.5 ND 28.0 OC S 25.2 24.5 ND ND ND B 25.0 24.5 ND ND ND D.O. S 7.0 - ND ND ND (ppm) B 7.0 6.0 ND ND ND ALINITY S 30.0 ND ND ND (ppt) B 30.0 28.0 ND ND ND pH S 8.2 - ND ND ND B 8.4 8.2 ND ND ND
)EPTH (ft) 10.0 6.0 6.0 6.0 5.0
% GRAVEL * * * * *
=U0 TE % AND * * * * *
% MUD , * * * *
,STIMATED HARD CLAM
(#/ft?) 0.18 0.24 0.30 0.34 0.11
)ENSITY
% SL 0.0 8.0 21.6 10.6 47.0
-OMMERCIAL LN 2.0 16.0 54.1 23.4 17.6 SIZES CS 14.3 24.0 13.5 57A4 29.4 CH 83.7 52.0 .11.8 9.6 6.0
\IUMBER CLAMS COLLECTED 35 50 37 47 17 SIZE RANGE (amm)42-102 21-102 23-82 26-85 22-86 SIZE (mm) 79.4 71.8 46.8 61.6 46.1 MORTALITY 28 7.4 7.5 6.0 26.1
- 45 -
TABLE 1 SRELLFISH INVENTORY SUM4MARY STATION NUMBSER LE87-116 LE87-117 LE87-118 LE87-119 LE87-120 LATITUDE N 39034.25' *39035.001 .39034.75' 39034.25' 39034.00' LONGITUDE W 74015.25' 74015.67' 74015.35' 740 16.65' 74016.33' COLLECTION DATE 8/10/87 8/11/87 8/11/87 8/11/87 8/11/87 TIDE AND HOURS High + 1.0 Low + 3.0 Low + 4°0 Low + 5.0 High + 0.(
TEMPERATURE AIR 30.0 23o0 .23.0 23.0 23.0 oc S 23.0 20.5 ND WATER ND ND B 22,8 20.5- ND ND NI)
D.O. S 6.8 6.7 ND ND ND (ppm) B 6.7 6.6 ND ND ND SALINITY S. 30.0 ND ND ND (ppt) B 30o0 ND ND ND pEI S 8.3 ND ND ND B - 8.4 ND ND ND DEPTH (ft) 13.0 7.0 4.0 *7.0 6.0
% GRAVEL , j , , ,
SUBSTRATE % SAND , , , , ,
% MUD , , , , ,
ESTIMATED HARD CLAM DENSITY (#/ftZ) 0*36 0.66 0.24 0.69 0.29 SL 9.8 0.8 34.6 4.4 1o7 COMMERCIAL LN 18.3 3.8 26.9 5.9 0.0 SIZES CS 19.6 21.2 23.1 1S.5 5.2 CH 53.3 74.2 16.4 72.2 94.1 NUMBER CLAMS COLLECTED 153 132 *26 135 58 SIZE RANGE (mm) 12-99 36-103 19-99 28-97 35-107 X SIZE (mE) 70.4 80.7 52.2 78.3 88.1
% MORTALITY 26.4 6.4 3.9 7.4 14.7
- 46*-
TABLE 1 StELLFISH INVENTORY
SUMMARY
.ATON NUMBER LE87-121 LE87-122 LE87-123 LE87-124 LE87-125.
fTITUDE N 03.0 0 30 0 0 3934.00' 39. 36.00' 39 36.25' 39 35.75' 39 35.50'
)NGITUDE W 74015.67' 74018.26' 74o17.94' 74017.94' 74oi7.61'
)LLECTION DATE 8/11/87 8/12/87 8/12/87 8/12/87 8/12/87
'DE AND HOURS High + 1.0 Low + 2.0 Low + 3.0 Low + 4.0 Low + 5.0 IMPERATURE AIR 25.0 23.5 24.0 24.0 24.0
°C WATERS 19.5 23.6 ND ND ND B 22.0 23.5 ND ND ND D.O. S 7.9 6.9 ND ND ND (ppm) B 7.8 6.9 ND ND ND kLINITY S 30.0 27.0 ND ND ND (ppt) B 30.0 28.0 ND ND ND pH S 8.4 8.2 ND ND ND B 8.5 8.2 ND ND ND
,PTH (ft) 8.0 7.0 7.0 9.0 10.0
% GRAVEL , , , , ,
JBSTRATE % SAND , , , , ,
% MUD , , , *
- 3TIMATED HARD CLAM 0 ENSITY (#/ftZ) 0.30 0.03 01i 0o15 0.24
% SL 0.0 0.0 0.0 0.0 0.0
- M4ERCIAL LN 17.2 0.0 0.0 0.0 2.7 SIZES CS 46.6 25.0 0.0 26.6 51A4 CH 46.2 75.0 100.0 73.4 45.9 UMBER CLAMS COLLECTED 58 4 12 15 37 IZE RANGE (mm)38-101. 73-90 81-96 70-94 46-92 SIZE (rmm) 70°2 60.0 88.3 82.8 77.2 MORTALITY 13.4 33.3 7.7 6.3 26.o0
47 -
TABLE 1 SNELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-126 LE87-127 LE87-128 LE87-129 LE87-130 LATITUDE N 39 35.25' 39035.70' 39 035.50' 39 35.25' 39 34.12' LONGITUDE W 74017.29' 74018.40'. 74018.261. 74017.81' 0 74 1744' COLLECTION DATE 8/12/87 8/18/87 8/18/87 8/18/87 8/18/87 TIDE AND HOURS Low + 5.5 High +.3.0 High + 3.5 High + 4.5 High + 5.(
TEMPERATURE AIR 24.0 30.0 30.0 30.0 31.0 0C S 23.9 26.6 ND ND ND WATER B 23.8 26.4 ND ND ND D.O. S 7.4 ND ND ND (ppm) B 7.0 5.7 ND ND ND SALINITY S 29.0 - ND ND ND (ppt) B 29.0 27.0 ND ND ND pH S 8.3 - ND ND ND B8 . 3 8.2 ND ND ND DEPTH (ft) 11.0 6.0 6.0 7.0 7°0
% GRAVEL , * * *
- S UBSTFITE % SAND , * * * *
% MUD , * * *
- ESTIMATED HARD CLAM 0.57 0.17 0.18 0.18 0°52 DENSITY (#/ft_)
SL 5.3 0.0 0.0 5.0 7.7 COMMERCIAL LN 7.0 8.0 17.9 5.0 3.8 SIZES CS 59.6 56.0 39.2 25.0 42.3 CH 38.1 36.0 42.9 70.0 57,2 NUMBER CLAMS COLLECTED 57 25 28 20 52 SIZE RANGE (mm) 28-87 46-88 50-88 31-93 332-89 X SIZE (ram) 67.3 71.5 61.7 76.5 72.3
-, I' 26.5 1
30.0 7 33.3
% 1.5 1.5 2G. 5 33.3 1.6.*
% M*ORTALI TY MORTALITY 3'10.0
- 48.-
TABLE 1 SnELLFISH INVENTORY
SUMMARY
PATION NUMBER LE87-131 LE87-135 LE87-132 LE87-133 LE87-134 kTITUDE N 39035.0, 39 034.75' 39 3450' 39 34.75' 39 34.50'
)NGITUDE W *74016.97' 74017.29' 74016.97' 74016.65' 740160331 DLLECTION DATE 8/18/87 8/19/87 8/19/87 8/19/87 8/19/87 DE AND HOURS Low + 1.0 High + 2.5 High + 3.0. High + 4.0 High + 4.5 7MPERATURE AIR 33,5 26.5 26.5 27.0 28.0
.0 C S 26.5 25.8 ND ND ND WATER .
B 26.0 25.9 ND ND ND D.O. S 6.5 ND ND ND Cppm) B 7.0 6.4 ND ND ND LINITY S -28.0 ND ND ND (ppt) B 28M0 28.0 ND ND ND pH S 8.4 ND ND ND B 8.3 8.4 ND ND ND EPTH (ft) 6.0 8.0 7.0 6.0 7.0
% GRAVEL , * *
- UBSTRATE % SAND , , * * *
% MUD , , * *
- STIMATED HARD CLAM L :0.73 0.60 1 0 0.58 0.77 0.78 ENSITY (#/ft) 0
% SL 1.3 4.1 1.1 0.0 3.3 OMMERCIAL LN 2.1 7.4 3.5 21.0 1.5 SIZES CS 20.3 45.5 5.8 17.3 4.1 CH 56.3 43.0 90.6 80.7 8]. ].
Ut.BER CLAM-lS COLLECTED 143 121 . 86 150 122 IZE RANGE (mm)27-100 27-96 37-98 39-98 29-103 SIZE (.mm) 80.5 71.5 78.4 82.7 75.0 MORTALITY 8.9 10.4 13.1 12.8 5.4
TABLE 1 SPELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-136 LE87-137 LE87-138 LE87-139 LE87-140 LATITUDE N 390.34.25' 33375' 39 35.50' 39.34.75' 39 34.50' LONGITUDE W 74 16.01' 74 15.35' 74 18.90' 74 17.94' 74 17.61' COLLECTION DATE 8/19/87 8/19/87 9/1/87 9/1/87 9/1/87 TIDE AND HOURS High. + 5.5 Low + 0.0 Low + 0o0 Low + 1.0 Low + 2.0 TEMPERATURE AIR 27.5 28.0 21.0 21.0 22.5 oC WATER ND 26.0 20.1 ND ND B ND 25°9 19.9 ND ND D.O. S ND - - ND ND (ppm) B ND .7.9 7.5 ND ND SALINITY S ND - - ND ND (ppt) B ND 28.0 28o0 ND ND pH S ND - ND ND B ND 8.4 8.3 ND ND DEPTH (ft) 7.0 7.0 5.0 7.0 6.0
% GRAVEL * , , , ,
SUBSTRATE % SAND * , , , ,
% MUD. * * , ,
ESTIMATED HARD CLAM 2.62 0.03 . 0.48 0,70 DENSITY ( /ftZ) 2.62 .00.22 SL 6.7 0.0 0.0 2.1 3.3 COMMERCIAL LN 21.9 25.0 0.0 10.4 4.7 SIZES CS 25.7 25.0 28.0 43.8 23.3 CH 45.7 50.0 72.0 44.7 68.7 NUMBER CLAn*S COLLECTED 269 4 25 48 150 SIZE RANGE (mm)24-109 52-112 66-89 32-96 31-94 X SIZE (mm) 69.6 82.5 80.0 68.9 72.8
% MORTALITY 5.6 0.0 19.4 12.7 8.5
- 50 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
TATION NUMBER LE87-141 LE87-142 LE87-143 LE87-144 LE87-145 ATITUDE N 39° 34.251 39 034.00' 39 35.00' 39 34.50' 39034.25' NGITUDE W 74 017.29' 74 017.61' 74 19.55' 74 18.90' 74 18,58' OLLECTI ON DATE* 9/1/87 9/1/87 9/2/87 9/2/87 9/2/87 IDE AND HOURS Low + 2.5 Low + 3.0 High + 5.5 Low + 0.0 Low + 1.0 EMPERATURE AIR 22.5 24.5 25.0 23.5 23.5 oC TER S ND 20.4 19.5 ND ND B ND 20.3 19.3 ND ND D.O. S ND - - ND ND (ppm) B ND 7.2 6.7 ND ND ALINITY S ND - ND ND (ppt) B ND 28.0 27.0 ND ND pH S ND -- D ND B ND 8.3. 8,3 ND ND
)EPTH (ft) 5.0 4.0 5.0 5.0 4.0
% GRAVEL,,,,,
UBSTRATE % SAND . . , , ,
% MUD * * * , ,
- STIMATED HARD CLAM
)ENSITY (#/ft ) 0.39 0.23 0.52 0.39 0%65
% SL 1.2 0.0 0.0 7.1 0.6
'OMMERCIAL LN 2.5 0.0 17.6 12.5 44.7 SIZES CS 21.0 9.1 62.7 51.8 22.9 CH 75. 3 90.9 20.7 38.6 71o8 qUMBER CLAMS COLLECTED 81 33 51 56 170 3IZE RANGE (mm) 34-95 57-109 41-83 33-99 35-108
< SIZE (ram) 80.7 88.9 66A4 67,0 80.1 MORTALITY 19.8 17.5 5.6 11.1 i1.5
TABLE 1 SHELLFISH INVENTORY
SUMMARY
TATION NUMER LE87-146 LE87-147 LE87-148 LE87-149 LE87-150 LATITUDE N 39034.50' 39034:.25' 39034.001 39034 10' 39034.00'
,ONGITUDE W 74018.26' 74017.94' {74018.90, 74019.18, 74020°20' "OLLECTION DATE 9/2/87 9/2/87 9/3/87 9/3/87 9/3/87
'IDE AND HOURS ow + 1.5 Low + 2.0 High + 4.0 High + 4.5 High + 5.0 7EMPERATURE AIR 24.5 24.5 21.0 21.0 21.0 0C S ND 20.9 19.9 ND 20.0 WATER ...
B ND 20.7 19.8 ND 19.9 D.0. S - - ND -
ND (ppm) B ND 7.9 6.6 ND 7.1
- ALINITY S ND ND ND (ppt) B ND 28.0 27.0 ND 27.0 pH .S ND. - ND B ND 8.4 8.3 ND 8.3
)EPTH (ft) 5.0 5.0 4.0 5.0 4.0
% GRAVEL , , , * *
.UBSTRATE % SAND * , , * *
% MUD * * * *
]STIMATED HARD CLAM 0.74 0.70 0.64 0.60 0.22
)ENSITY (#/ft)
% SL 0.0 1.4 0.0 0.0 9.4
'OMMERCIAL LN 4.1 4.3 3.2 16.7 11..3 SIZES CS 27.0 9.9 11.3 50.0 37.7 CH 68.9 84.4 86.5 33.3 41.6 IUMBER CLAMS COLLECTED 74 141 62 60 53
,IZERANGE (mm)38-104 34-102 39-101 38-96 31-88 7 SIZE (:ramm) 38 2 SIE(m)79.8 82.7 85.5 68.6 56.7 MORTALITY 5.1 19.0 13.9 14.o3 14.5 5.1 19.0
- 52 -
TABLE 1 SFELLFISH INVENTORY
SUMMARY
- TATION NUMBER LE87-151 LE87-152 LE87-153 LE87-154 LE87-155 ATITUDE N 39 033.25' 39 33.75' 39033.50' 39033.00' 39 032.70'
,ONGITUDE W 74 016.01' 74 016.01' 74 15.67' 74 15.67' 74 15.57' OLLECTION DATE 9 /4/87 9/4/87 9/4/87 9/4/87 9/4/87
'IDE AND HOURS High + 2.5 High + 3.0 High + 3.5 High + 3.5 High + 5.0
'EMPERATURE AIR 22.0 22.0 23.0 23.0 25.0 C WATER S 19.5 ND ND ND ND B 19.5 ND ND ND ND D.0. S ND ND ND ND (ppm) B 7.2 ND ND ND ND 3ALINITY S _ ND ND ND ND (ppt) B 28.0 ND ND ND ND pH S ND ND ND ND B 8.3 ND ND ND ND
)EPTH (ft) 4.0 5.0 7.0 6.0 8.0
% GRAVEL * * , ,
- SUBSTRATE % SAND , *, , ,
% MUD * * , *
- ESTIMATED HARD CLAM 1 DENSITY (#/ftZ) 0.52 0°40 0.01 0.07 0.01
% SL 0.0 0.0 0,0 7.6 80.0 COMMERCIAL LN 9.7 2.7 0.0 31.0 0.0 SIZES CS 24.3 2.7 0.0 54.0 0.0 CH 66.0. 94.6 100.0 54.0 20.0 NUMBER CLAN,1S COLLECTED 103 74 2 13 5 SIZE RANGE (mm)41-110 44-107 85-97 37-86 11-92 A SIZE (mm). 80.7 88.1 96.0 59.1 35A4
% MORTALITY 3.9 0.0 52.0 44.4 11.1
- 53 -
TABLE 1 SRELLFISH INVENTORY SUMIMARY STATION NUMBER LE87-156 LE87-157 LE87-158 LE87-159 LE87-160 LATITUDE N 0 0 0 0 0 39 32.50' 39..32.25' 39 32.00' 39 31.75' 39 32.00' LONGITUDE W 74015.74' 74°16.01' 74016.33' 74016.65, 74 16.97' COLLECTION DATE 9/4/87 9/4/87 9/10/87 9/10/87 9/1.0/87 TIDE AND HOURS High + 5.5 Low + 0.0 Low + 2.5 Low + 3.0 Low + 3.1 TEMPERATURE AIR 24.0 23.0 24.0 24.0 24.0 0
C S ND 20.0 21.0 ND ND WATER B ND 20.0 21.0 ND ND 0..S ND ND ND (ppm) B ND 7.4 6-4 ND ND SALINITY S ND ND ND (ppt) B ND 28.0 29.0 ND ND pH S ND - - ND ND B ND 8.3 8o2 ND ND.
DEPTH (ft) 4.0 4.0 7.0 5.0 6.0
% GRAVEL , , * *
- SUBSTRATE % SANDD , , * *
% MUD , , * *
- ESTIMATED HARD CLAM 0.0 0.03 0.0 DENSITY (#/ft")
% SL 0.0 0.0 0.0 0.0 0.0 COMMERCIAL LN 0.0 0.0 0.0 0.0 0.0 SIZES CS 0.0 1.2 0.0 3.3 0.0 CH 100.0 98.8 0.0 66.7 0.0 NUMBER CLAN1S COLLECTED 6 82 0 3 0 SIZE RANGE (mm)91-106 76-106 - 66-97 -
SIZE (.mm) 99.0 101.0 80M0 x sOTLT 09.01.000000
% MORTALITl 0.0 1.2 0.0 0.0
TABLE 1 SHELLFISH INVENTORY
SUMMARY
TATION NUMBER LE87-161 LE87-162 LE87-163 LE87-164 LE87-165 ATITUDE N 39 32.25' 39 032.50' 39 033.00' 39 033.50' 39 31.50' ONGITUDE W 74016.65, 74016.33., 74016.33, 74016.331 74017.05.
OLLECTION DATE 9/10/87 9/10/87 9/10/87 9/10/87 9/14/87 IDE AND HOURS Low + 4.5 High + 0.0 High + 0.5. High + 1.0 Low + 1.0 EMPERATURE AIR 24.0 25.0 25.0 25.0 22.0 c S ND ND ND 21.6 21o2 CWATER-..
B ND ND ND 21.6 2Q.7 D.O. S ND ND ND --
(ppm) B ND ND ND 7.0 .5.8 ALINITY S ND ND ND -
(ppt) B ND ND ND 30.0 29.0 pH S_ ND ND ND-B ND ND ND 8.2 8.3 EPTH (ft) 4.0 4.0 5.0 5.0 7ý0
% GRAVEL * * * *
- UT3STRATE % SAND * * * * *
% MUD * * * * *
- STIMATED HARD CLAM 0 0.03 0.05 0.37 0.23 0.0
,ENSITY (#/ft*)
SL 0.0 0.0 0.0 0.0 0o0
- OM*IERCIAL LN 0.0 0.0 1.4 0.0 0.0 SIZES CS 0.0 1.3 5.5 4.4 0.0 CH 100.0 98.7 93.1 95.6 0.0 4UMBER CLAMS COLLECTED 6 7 73 45 0 3IZE RANGE (mm) 71-91 69-95 41-108 72-107 -
K SIZE (rmm) 85.0 85.3 90.8 90.1
,oMORTALITY 14.3 0.0 6A4 6.3 Mo
TABLE I S8ELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-166 LE87-167 LE87-168 LE87-169 LE87-170 LATITUDE N 39 31.75' 39 32.25' 39 32.00' 39 32.50' 39 32.60' LONGITUDE W 74017.29' 74017."29' 74017.71' 74017.61' 74017.94' COLLECTION DATE 9/14/87 9/14/87 9/14/87 9/15/87 9/15/87 TIDE AND HOURS Low + 2.0 Low + 3.5 Low + 4°0 High + 5.5 Low + 0.0 TEMPERATURE AIR 23.0 25.0 26°0 24.5 24.5 0
C WATER- ND ND 21.2 21.1 ND B
ND ND 21.2 21.1 ND D.O. S ND ND - - ND (ppm) B ND ND 7.2 6.5 ND SALINITY S ND ND - - ND (ppt) B ND ND 30.0 30.0 ND pH S ND ND - - ND B ND ND 8.3 8.2 ND DEPTH (ft) 7.0 6.0 6.0 5.0 5.0
% GRAVEL , * *
- 5 SUB3STRATE % SAND {,*,1 , ,
% MUD , , * ,
- ESTIMATED HARD CLAM DENSITY (U/ft%) 0.01 0.04 0.01 0.11 0.01
% SL 0.0 14.3 0.0 9.1 0.0 COMMERCIAL LN 0.0 85.7 0o0 . 63.6 0.0 SIZES CS 100.0 0.0 100.0 27.3 0.0 CH 0.0 0.0 0.0 0.0 100o0 NUMBER CLAJMS COLLECTED 1 21 1 11 2 SIZE RANGE (mm) - 29-50 57 94-99 X SIZE (mm) 74.0 43.1 72.0 47.6 96,0
% MORTALITY 0.0 1.9.2 50.0 15.4 0.0
- 56 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
- TATION NUMBER. LE87-171 LE87-172 LE87-173 LE87-174 LE87-175 LATITUDE N 39 32.50' 39 032.75' 39 33.00' 39 032.25' 39 031.70' LONGITUDE W 74 18.26' 74 018.58' 74 18.90' 74 17.84' 74 017.84'
- OLLECTION DATE 9/15/87 9/15/87 9/15/87 9/15/87 9/16/87 LIDE AND HOURS Low + 1.0 Low + 1.5 Low + 2.0 Low + 3.0 Low + 0.5 CEMPERATURE AIR 25.0 26.0 24.5 25.0 25.5 0C S ND ND ND 17.1 21.7 WATER_ _
B ND ND ND 17.3 21o7 D.0. S ND ND ND -
(ppm) B ND ND ND 6.7 6.8 3ALINITY S ND ND ND - -
(ppt) B ND ND ND 30.0 29.0 pH S ND ND ND - -
B ND ND ND 8.2 8.3 DEPTH (ft) 7.0 5.0 6.0 8.0 5.0
% GRAVEL , , , , ,
SUBSTRATE SAND ,
% MUD * ,
ESTIMATED HARD CLAM 1
(#/ft2 ) 1.13 0.08 0.02 0.05 0.0 DENSITY
% SL 2.7 0.0 0.0 0.0 0.0 COM.MERCIAL LN 17.7 .12.5 33.3 0.0 0.0 SIZES CS 56.6 0.0 55.6 40.0 0.0 CH 23.0 87.5 11.1 60.0 0.0 NUMBER CLAN.IS COLLECTED 113 8 7 5 0 SIZE RA.NGE (mm) 24-93 55-99 42-77 60-90 -
x SIZE (mm) 65.0 86..6 62.3 77.4 -
% MORTALITY 34.7 0.0 43.8 61,5 0.0
- -An-, I - i ý nýýrl in, ND-No Data
- 57 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-176 LE87-177 LE87-178A LE87-178B LE87 LATITUDE N 39 032.75' 39 032.50' 39 32.75' 39 22.75' 39 33.25' LONGITUDE W 74'16.65' 74 016.97' 74 17.291 74 01729' 74 18.65' COLLECTION DATE 9/22/87 9/22/87 9/22/87 9/22/87 9/22/87 TIDE AND HOURS Low + 5.0 High + 0.0 High + 0.5 High +1.0 High + 1..
TEMPERATURE AIR 23.0 23.0 24.0 - 24.0 CC WATER S ND ND ND ND ND B ND ND ND ND ND D. 0. S ND ND ND ND ND (ppm) B ND ND.. ND ND ND SALINITY S ND ND ND ND. ND (ppt) B ND ND ND ND ND pH S ND ND ND ND ND B ND ND ND ND ND DEPTH. (ft) 4.0 4.0 4,0 8.0 4.0
% GRAVEL , , * *
- SUBSTRATE % SAND , . , , ,
% MUD * . , * , ,
ESTIMATED HARD CLAM DENSITY (#/ftZ) 0.27 0.0 0.01 0.11 0.29
% SL 3.1 0.0 0.0 0.0 0.0 COMMERCIAL LN 15.6 0.0 0.0 4. 7 307 SIZES CS 45.8 0.0 100.0 j 47.7 31.5 CH 35.5 0.0 0.0 47.6 64.8.
NUMBER CLAMS COLLECTED 96 0 1 21 54 SIZE PANGE (mm)31-111 - - 53-94 44-10E X SIZE (hmm) 70.7 - 71.0 74.6 79.7
% MORTALITY 8.6 100.0 0.0 22.2 ND-No Data Analysis pendinq
- -Analysis
- pendinq ND-No Data
TABLE 1 SflELLFISH INVENTORY
SUMMARY
TATION NUMBER LE87-180 LE87-181 LE87-182 LE87-183 LE87-184 ATITUDE N 39 33.251 39 33.75' 39 33o50' 39 033.75' 39 33.75' ONGITUDE W 74 019.23' 74 19.23' 74 19.55' 74 19.87' 74 14.95'
.OLLECTION DATE 9/22/87 9/23/87 9/23/87 9/23/87 9/23/87
'IDE AND HOURS High + 2.0 Low + 4.0 Low + 4.5 Low + 5.0 High + 0.5
'EMPERATURE AIR 24.0 14.0 14.0 18.0 18,0 0C S ND 17.4 ND ND WATER- ND ND 17.3 ND ND ND D.C. S ND ND N1D ND (ppm) B ND 6.8 ND ND ND ALINITY S ND ND ND ND (ppt) B ND 28.0 ND ND ND pH S ND - ND ND ND B ND 8.2 ND ND ND
)EPTH (ft) 4.0 4.0 4.0 6.0 4.0
% GRAVEL * * , * ,
UBSTRATE % SAND * * , * *
% MUD * * , * *
ýSTIMATED
)ENSITY HARD
(#/it') CLAM 0 02 .103 .9*03 0.79 0.30
% SL 0.0 0.0 4.5 4.5 7.1
'OMMERCIAL LN 4.5 0.0 3.0 8.3 14.3 SIZES CS 15.9 0,0 9.0 51.5 35,8 CH 79.6 100.0 83o5 35.7 42.8 IUMBER CLAMS COLLECTED 44 2 67 157 .28
,IZE RANGE (mm) 50-111 91-95 33-105 22-96 33-106 SIZE (rmm) 84.1 93.0 67.0 64.3 68.5 MORTALITY 15.4 0.0 9.4 16.5 3.4
- -Analysis pending ND-No Data
- 59 -
TABLE 1 SRELLFISH INVENTORY
SUMMARY
STATION NUMBER LE87-185 LE87-186 LE87-187 LE87-188 LATITUDE N 39033.55' 390 33.35' 39 033o50' 390 33.80' LONGITUDE W 74014.85' 74015.30' 74 18.90' 74 18.60' COLLECTION DATE 9/23/87 9/23/87 10/9/87 10/9/87 TIDE AND HOURS High + 1.0 High + 1.5 Low + 5.0 High + 0.0 TEMPERATURE AIR :23.0 24.0 12.0 15.5 oC S ND 18.5 12.4 ND c WATER B ND 18.5 12.6 ND D.0. . S ND - - ND (ppm) B ND 7.7 8.1 ND SALINITY S ND - ND (ppt) B ND 30.0 28.0 ND pH S ND - ND B ND 8,4 8.2 ND DEPTH (ft) 4.0 5.0 3.0 4.0
% GRAVEL , , ,
SUBSTRATE % SAND , . , .
% MUD ____
ESTIMATED HARD CLAM I DENSITY (#/ftZ). 0.15 0.01 0.01 0.03
% SL 0.0 0.0 0.0 0.0 COMMERCIAL LN .26.7 0.0 0.0 0.0 SIZES CS 46.6 0.0 0.0 20.0 CH 26.7 100.0 100.0 80.0 NUMBER CLAMS COLLECTED 15 1 1 5 SIZE RANGE (rm) 38-96 - - 69-96 SIZE (:mm) 66.8 101,0 103.0 85,0
% MORTALITY 6.3 0o0 0.0 37.5
- Analysis pending
ATTACHMENT B
- 61 -
SEGMENT 2 Location of Leased Ground Applications by Lot Numbers 7-1-86 to 8-31-87 B331 B332 B36.0 B407.1 B896 B36.1
. B482 I /
B334 B481 B2061,B2062 B485 B2066,B2067 B2068,B2069 B2070,B2071 B2072,B2076 B2077,B2078 B2028 B2029 B2030
KEY TO LEASED GROUND
SUMMARY
CHARTS SUBSTRATE COMMERCIAL SIZES LOT CLASSIFICATION
- 1. Mud SL-Sublegal P-Productive
- 2. Muddy-Sand LN-Littlenecks PP-Potentially Productive
- 3. Sandy-Mud CS-Cherryston es NP-Non-Productive
- 4. Sand CH-Chowders
- 5. Gravel MORTALITY
- 6. Shell R-Recent
- 7. Peat T-Total (Annual)
- 8. Clay ASSOCIATED MOLLUSKS 1 . Anadara ovalis 29. Mytilus edulis
- 2. Anemia simplex 30. Nassarius vibex
- 3. Arctica islandica 31. Petricola pholadiformis
- 4. Argopecten irradians 32. Pitar morrhuanus
- 5. Astarte castanea 33. Placopecten magellanicus
- 6. Busycon canaliculatum 34. Polinices duplicatus
- 7. Busycon carica 35. Prunum roscidum
- 8. Crassostrea virginica 36. Retusa sp.
- 9. Crepidula fornicata 37. Solemya velum
- 10. Crepidula plana 38. Spisula solidissima
- 11. Diastoma alternatum 39. Tagelus plebeius
- 12. Ensis directus 4o. Tellina sp.
- 13. Epitonium sp. 41. Teredo navalis
- 14. Eupleura caudata. 42. Urosalpinx cinerea
- 15. Gemma gemma 43. Anadara transversa
- 16. Geukensia demissa 44. Barnea truncata
- 17. Ilyanassa obsoleta 45. Cyrtopleura costrata
- 18. Laevicardium mortoni 46. Nucula proxima
- 19. Lucinoma filosa 47. Nuculana acuta
- 20. Lunatia heros 48. Yoldia sapotilla
- 21. Lyonsia hyalina 49. Yoldia limatula
- 22. Macoma balthic 50. Yoldia throcialformis
- 23. Macoma tenta .51. Aligena elevata
- 24. Mercenaria campechiensis 52. Anachis avara
- 25. Mercenaria mercenaria 53. Haminoea solitaria
- 26. Ifercenaria mercenaria notata 54. Crepidula convexa
- 27. Mulinia lateralis 55. Lyonsia arenosa
- 28. Mya arenaria 56. Turbonilla interrupta
- 57. Nassarius trivittatus
- 63 .
LEASED GROUND APPLICATION
SUMMARY
- HARD CLAMS MAP NUMBER MNUBR8 8 8 8 5 6 LOT NUMBER A105 A103 A102 A104 B888.1 B407.
DATE 8/25/86 8/25/86 8/25/86 9/10/86 11/12/86 12/15/:
TIDE AND HOURS Low + 4.5 hrsLow + 5 hrs Low + 5 hrs. Low + 0 hrs. High +3h.rs. High+0.!
TEMPERATURE AIR 26.0 24.0 24.0 - 15.0 -
00 . - -.. 9.8 -
WATER B 22.0 22.0 22.0 - 9.8 PH ... 8 .1 B 8.2 8.2 8.2 8.2 8.1 8.1 D.O. S - -. 9.5 -
(ppm) B 5.9 6.8 6°8 6.7 9.3 9.2 SALINITY S - - - 26.0 -
(ppt) B 29.0 29.0 29.0 30.0 27.0 30.1 DEPTH (m) 2.0 1.3 1.3 2.0 2.0 2.3 TURBIDITY (Secchi m) 1.0 1.0 1.0 1.3 -
SUBSTRATE 1,3 3. 2 1,6 1 1,7
% SL 1.2 0.0 0.0 0.0 0.0. 5,6 COMMERCIAL LN 4.7 0.0 7.1 0.0 0.0 5.6 SIZES CS 21.2 18.2 28.6 42.9 44,0 22o2 CH 72.9 81.8 64.3 57.1 56.0 66.6 NUMBER CLAMS COLLECTED 85 22 15 15 . 26 19 SIZE RANGE (mm)36-107 58-105 54-100 64-95 58-98 37-90 SIZE (mm) 80.8 84.4 78.7 81.4 77.7 75.1 ESTIMATED CLAM DENSITY
(#/mZ) 2.4 0.57 0.47 0.17 0.93 0°68 NUMBER YEAR CLASSES 9 6 6 4 5 JUVENILE PRESENCE 3.6 0.0 0.0 0.0 0.0 0.0 R - - -- - -
MORTALITY T 3.4 0.0 0.0 0.0 18.8 21.7 ASSOCIATED MOLLUSKS 1,2,8,9,29 1,36,37,40 1,37,40 3,37,40,53 1,6,7,27 1,15,27,3' 40 54 LOT CLASSIFICATION p pp pp PP P Pp
LEASED GROUND APPLICATION
SUMMARY
- HARD CLAMS MAP NUMB3ER 6 6 77 76 6 9 LOT NUMBER B2238, P2252
- B2269 *B2062, 82061*B2071, B2072*B20 ,B2070 B36
- g2267 B2268 B2271 B2067, B2068 B2076, B2077 B2078,B2061 B36.1 DAT_ _ 4/29/87 4/29/87 5/l/87-7/9/87 5/1/87-7/9/8 5/l/87-7/9/8 5/6/87 TIDE AND HOURS ow+5.5 hrs. Low+5.5 hrs. High+0 hrs. High+-- hrs. High+O:hrs. Low+-0 hl TEMPERATURE AR-- _...
0C WATER i ...
S pH 8°0 " I8 .0 - - 7.9 B - 8.18o 8.1 7.9 D.O. S 10.9 10.9 .1.1 (ppm) 7.8 7.8 7.8 10.3 SALINITY S 19.0 19.0 . - 14.0 (ppt) B _ 27.0 27.0 27.0 15.0 DEPTH (m) 1.3 1.3 1.6 1.6 1.6 1.6 TURBIDITY (Seechi m) 1.0 1.0 - - 1.3 SUBSTRATE 1 1 . -1,3,6 1,3,6 1,3,6 1,7
% SL 0.0 0.0 0.7 0.7 0.7 . 0.0 COMMERCIAL LN 0.0 0.0 5.5 5.5 5.5 6.5 SIZES CS 46.3 46.3 19.6 19.6 19.6 69.6 C 53.7 53.7 74.2 74.2 74.2 23.9 NUMBER CLAMS
________ COLLECTED 40 40 271 .271 271 168 SIZE RANGE (mm)58-103 58-103 31-110 31-110 31-110 40-94 XSIZE (mm)
SIZE 78.4 78.4 79.8 79.8 79.8 70.8 ESTIMATED CLAM DENSITY
(#/mz) 0.43 0.43 2.0 2.0 2.0 5.1 NUMBER YEAR CLASSES 5 5 9 9 9 5 JUVENILE PRESENCE 2.69 2.69 2.0 2.0 2.0 0.0
% R*...
MORTALITY T 6.8 6.8 4.0 4.0 4.0 2.3 1,15,32,40 1,15,32,40 1,15,29,32, 1,15,29,32 1,15,29,32 29,39 ASSOCIATED MOLLUSKS 37,40 37,40 37,40 LOT CLASSIFICATION NP NP PP PP PP Pp
- Composite sample of adjacent lots.
- 03 -
LEASED UROUND APPLICATION
SUMMARY
- HARD CLAMS MAP NUMBER 6 6 6 6 6 6 LOT NUMBER B485 B481 B482 B334 B331 8332 DATE 5/28/87 5/28/87 5/28/87 5/28/87 6/17/87 6/17/E TIDE AND HOURS High + 1 hr. High+0.5hrs High +3.5hrs. High + 2 hrs. Low + 3 hrs Low+3.51 AIR --
TEMPERATURE AIR oC S 14.5 20.0 20.0 WATER B 16.5 20.0 20.0 pH S 7.8 8.2 - 7.8 8.0 8.0 B- -7.8 - 8.1 8.1 D.O. S 10.3 10.3 - 7.7 7.6 7.6 (ppm) B - 8.1 - 7.3 7.3 SALINITY S 26.0 26.-0 - 24.0 28.0 .26. 0 (ppt) B 26.0 28.0 28.0 DEPTH (in) 0.6 1.0 1.3 1.3 2.0 2.0 TURBIDITY (Secchi m) 0.6 1.0 1.0 1.0 1.0 1.0 SUBSTRATE 1 3 1,7 1,3,6 1 1 SL 0,0 0.0 0.0 0.0 0.0 . 0.0 COMMERCIAL LN 40.0 38. 5 0.0 26.8 2.4 6.9 SIZES CS 60.0 .61.5 100.0 37.5 32.0 19.8 CN CH_0.0 73.3 0.0 0.0 35°7 65.6 73.3 NUMBER CLAMS COLLECTED i0 13 2 56 122 101 SIZE RANGE (mm) 47-69 46-65 5.7-71 45-95 49-101 47-101 SIZE (mm) 56. 57,1 64.0 67.8 .80.0 80°4 ESTIMATED CLAM DENSITY
(#/mZ) 00.43 .43 - 1.5 1o2 0.97 NUMBER YEAR CLASSES 3 3 2 6 ' 6 6 JUVENILE PRESENCE 3.6 0.0 -0.0 0.0 0.0 0.0 2
(#/m )
R MORTALITY T 0.0 . 0.0 0.0 2.4 5 .6 15,29,31, ASSOCIATED MOLLUSKS 15,40 40 15 1,40 1,27,29,40 1,27,29,37 40 LOT CLASSIFICATION . PP NP P PP PP
LEASED GROUND APPLICATION
SUMMARY
- HARD CLAMS NAP NUMBER . 9 9 7 7 7
. 7 LOT NUMBER A1052 A1050 B2011 B20282 B2029 B2021 DATE 6/26/87 6/26/87 7/1/87 7/1,7/10/87/ 7i ,7A0/:
TIDE AND HOURS High + 2hrs. High-0.5hrsHigh + 0 hrs. High + 2hrs. High + 2hrs. -igh +2hz AIR AIR TEMPERATURE Oc S 21.3 21.3 22.5 - -
WATER B 21.3 21.3 22.5 22.5 22.5 22.5 pH S 8.2 ... -__-___- . -
B -" 8.2 8.1 8o1 8.1 8.1 D.O. S (ppm) B - 8.1 7.5 7.5 7.5. 7.5 SALINITY S 31.0 - -
(ppt) B - 31.0 31.0 31.0 31.0 31.0 DEPTH (in) 1.6 1.6 1.6 1.3 1.3 1.3 TURBIDITY (Secchi m) 1.0 1.0 ..-
SUBSTRATE 1 3 1 1 1 1
% SL 0.0 0.0 0.0 0.0 0.0- 0.0 COMMERCIAL LN >5.0 3.9 20.9 22.5 22.5 22.5 SIZES CS 45.0 23.5 51.8 52.1 52.1 52.1 CH 50.0 72.6 27.3 25.4 25.4 25°4 NUMBER CLAMS COLLECTED 20 51 110 71 71 71 SIZE RANGE (mm) 50-110 53-104 41-100 48-96 48-96 48-96 7- SIZE (mm) 80.1 84.3 71-4 72.3 72.3 72.3 ESTIMATED CLAM DENSITY (w/mz) 0.64 0.97 1.5 1.2 0.28 1.1 NUMBER YEAR CLASSES 8 6 6 7 7 7
(
2 JUVENILE PRESENCE t/rn ) 0.0 0.0 7.18 3.59 5.38 0.0 0.0______ _______
R MORTALITY T 0.0 1.9 2.6 0.0 20.0 ASSOCIATED MOLLUSKS 1,15,40 1,40 1,15,17,29 15,36,40,53 15,36,40 1,15,17,32 36,40,53 36,40 LOT CLASSIFICATION pPp PP PP pp pp pp
- 67 -
LEASED GROUND APPLICATION
SUMMARY
- HARD CLAMS MAP NUMBER 7 7 LOT NUMBER B2022 B2030 DATE 7/1,7/10/87. 7/1,7/1.0/87 TIDE AND HOURS High + 2.Ohr, .High+2 hrs.
AIR TEMPERATURE Oc S_
WATER B 22.5 22.5 pH S -____
B 8.1 8.1 D.O. S (ppm) B 7.5 75 SALINITY S (ppt) B 31.0. 31.0 DEPTH (m) ..1,3 1.3 TURBIDITY (Secchi in)
SUBSTRATE 1
% SL 0.0 0.0 COMMERCIAL LN 22.5.. 22.5 SIZES CS 52.1. 52.1 CH 25.4 25.4 NUMBER CLAMS COLLECTED 71 71 SIZE RANGE (mm) 48-96 48-96 X SIZE (mm) 72.3 72.3 ESTIMATED CLAM DENSITY
( ll/mZ) i1.i. 0.22 NUMBER YEAR CLASSES 7 7 JUVENILE PRESENCE 0.0
(#/m ) 0.0
%R MORTALITY T 0.0 0.0 ASSOCIATED MOLLUSKS 15,17,40 15,17,36,40 LOT CLASSIFICATION PP PP
ATTACHMENT C
69 -
TABLE- 1::. 1986 HARD.CLAM RELAY REPORTED HARVEST AND EFFORT 1# 1/ CATCH PER EFFORT % OF TOTAL AREA CLAMS MANDAYS (CLAMS/MAN/DAY) RELAY HARVEST IA 26,159 18.0 1453 0.50 1B 2,350 1.5 1567 0.04 1C 900 0.5 1800 0.02 Total 84,286 62.66 1345 1.63 2A 8,900 7.5 1187 0.17.
2B 32,050 18.0 1781 0.62 2C 2,400 1.0 2400 0.05 Total 148,843 107.83 1380 2.87 3A 173,133 122.5 1413 3.34 3B 270,362 195.33 1384 .5.22 3C 11,797 7.5 1573 0.23 Total 1,147 ,982 925.51 1240 22.15 4A 422,774 307.00 1377 8.16 4B 210,355 153.83 1367 4.06 4C 77,727 58.00 1340 1.50 4D 0 0 0 0.0 Total 1,224,629 963.5 1271 23.63 5A 90,176 78.34 1151 1.74 5B 67,579 .52.5 1287 1.30 5C 22,600 19.0 1189 0.44 Total 636,200 474.49 1341 12.28 6A 19,179 18.0 1066 0.37 6B 1,238 *1.0 1238 0.02 Total 128,364 86.15 1490 2.48 7A 0 0 0 0.0 7B 0 0 0 0.0 7C 0 0 .0 0.0 Total 3,850 4.0 963 0.07 8A 15,599 15.50 1006 0.30 8B 19,905 9.00 2212 0.38 8C 17,500 11.00 1591 0.34 Total 423,950 294.66 1439 8.18 Total Area 9 0 0 0 0 1406 0.24 IOA 12,650 9.0 103 103,456 80.34 1288 2.00 IOC 7,500 5.0 1500 0.14 i00 24,266 17.83 1361 0.47 10E 74,283 57.5 1292 1.43 Total 574,051 392.36 1463 11.08 IIA 3,500 2.0 1750 0.07 17,306 10.50 1648 0.33 11B IIC 1,800 1.0 .1800 0.03 11%0
- 724 0.05.
2,534 3.50 25,644 13.50 1900 0.49 TiE Total 56,693 34.84 1627 1.09
- Totals include figures where specific section (A,B,C) was not reported.
- 70 -
TABLE 1 (cont.)
CATCH PER EFFORT % OF TOTAL AREA CLAMS MANDAYS (CLAMS/MPN/DAY) RELAY HARVEST W 11,397 11.0 1036 0.22 X. 299,852 260.0 1153 5.79 Y 9,697 11.0 882 0.19 Total Manasquan River 320,946 282.0 1138 6.19 Z (Shark River) 153,050 159.0 963 2.95 Tuckerton Creek (TCK) 17,555 11.5 1527 0.34 Tuckerton Cove (TCV) 151,664 79.5 1908 2.93 Tuckerton Total 169,219 91.0 1860 3. 27 Not Reported 110,497 87.0 1270 2.13 1986 RELAY: REPORTED HARVEST AND EFFORT BY ESTUARY Raritan Bay 54,159 31.34 1728 i. 04 Sandy Hook Bay 809,714 566.35 1430 15.62 Navesink River 1,989,193 1524.14 1305 38,4 Shrewsbury Rive er 1,575,782 1224.17 1287 30.40 Manasquan River 320,946 282.0 1138 6.19 Shark River 153,050 159.0 963 2.95 Tuckerton Creek 17,555 11.5 1527 0.34 Tuckerton Cove 151,664 79.5 1908 2.93 Not Reported 110,497 87.0 1270 2.13 Totals 5,182,560 3965 1307 100 PLANTING SITE # CLA14S % OF RELAY TOTAL Swan Point 4,253,815 82.1 Tuckerton 928,745 17.9
- Totals include figures where specific section (A,B,C) was not reported:
71-TABLE ,: 1987 HARD CLAM RELAY REPORTED HARVEST AND EFFORT (January 1 - August 31)
CATCH PER EFFORT % OF TOTAL AREA -CLAMS MANDAYS (CLAMS/MAN/DAY) RELAY HARVEST 1A 5,900 .5.33 1,107 0.19 IB 1,000 1.00 1,000 0.03 IC 0 0 0 0.00 Total 15,676 13.51 1,160 0.51 2A 5,633 4.33 1,301 0.18 2B 25,896 14.17 1,828 0.83 2C 28,800 26.01 1,107 0.89 Total 88,581 64.51 1,373 2.85 3A 120,817 101.51 1,190 3.89 3B 184,251 148.98 1,237 5.93 3C 43,297 35.65 1,215 1.39 Total 879,083 691.27 1,272 28.27 4A 194,014 181.66 1,068 6.24 4B 286,214 227.85 1,256 9.21 4C 125,474 88.01 1,426 4.04 4D 67,167 74.83 898 2.16 Total 1,003,700 876.50 1,145 32.28 5A 37,894 37.84 1,001 1.22 5B 535 .66 811 0.02 5C 2,529 4.33 584 0.08 Total 69,920 79.03 885 2.25 6A 1,100 1.00 1,100 0.04 6B 0 0 0 0.00 Total 1i,100 1.00 1,100 0.04 7A 16,324 14.50 1,126 0.53 7B 0 0 0 0.00 7C 0 0 0 0.00 Total 24,374 22.00 1,108 0.78 8A 65,993 42.83 1,527 2.12 8B 5,750 5.50 1,045 0.18 8C 142,-229 116.33 1,223 4,57 Total 243,747 184.16 1,324 7.84 Total Area 9 0 0 0 0.00 10A 3,700 **3.50 1,057 0.12 10B 36,513 28.00 1,304 1.17 10CC 21,600 16.00 1,350 0.69 10D 106,050 82.67 1,283 3.41 10BE 10,600 5.83 1,818 0.34 1OF 241,185 106.18 2,271 7°76 Total 466,784 278.19 1,678 15.01 11A 0 0 0 0.00.
0 0 0.00 11C 4,200 3.00 1,400 0.14 liD 0 0 0 0o00 llE 14,500 8.83 1,642 0.47 Total 18,700 11.83 1,581 0.60
- Totals include figures where specific section (A,BC) was not reported.
72 TABLE 2 (cont~.)
- n. 0 CATCH PER EFFORT % OF TOTAL AREA CIAMS MANDAYS (CLAMS/N-AN/DAY) RELAY HARVEST W 35;750 38.50 929 1.15 x 109,259 145.00 736 3.51 Y 30,531 34.50 885 0.98 Total Manasquan River 175,540 218'00 805 5.65 Z (Shark River) 0 0 0 0.00 Tuckerton Creek (TCK) 0 0 0 0.00 Tuckerton Cove (TCV) 0 0 0.00 Not Reported 121,965 96.00 1,270 3.92 1987: REPORTED HARVEST AND EFFORT BY ESTUARY Raritan Bay 18,700 11i83 1,59]. .0.60 Sandy Hook Bay 571,041 356.21 1,6Q3 18 ý37 Navesink River 1,074,720 956.53 1,124 34.57 Shrewsbury River 1,148,204 868.43 1,321 36.90 Manasquan River 175,540 218.00 805 5.64 Shark River 0 0 0 0.00 Not Reported 121,965 96.00 1,270 3°92 Totals 3,109,170 2507 1,226 100 PLANTING SITE # CLANS % OF RELAY TOTAL Swan Point 2,971,945 95.6 Tuckerton 137,225 4.4
- Totals include figures where specific section (A,B,C) was not reported.
IDESIGNATED'HARD& °'*°: - SOFT CLAM DEPURATION.:&
RELAY[LAREASM-,-/-3..'- r-;..*. ., ,
RA.A.4.R__ . EFFECTIVE JULY 20 1987 qr
\23 ý - 7 . *
':"':**2..* ** ,/"+'%*',c.*'* .. t" .. ".i% MAR1NE EN.ORCE;rENT"Uz,
-415 .4 is
.-.- t z * ," 1ý .
MARINE ENFORCE7ENT UNIT 2~ ~, '*"
609-*4"41 -3474 21*'
-(~T~
ii ~~(j u
xj~
~ 21 ii Vi 70
'Zo
-13 C-.-
02
',,y iz--. - , " ' " , ,,
T. . , . .
LINE DESCRIPTION:
R"2", R", RV6 R TO LAND
"",*1 1"
.. "-.; .-.-.. -* 7 ,.
-"+..-,*:: -1 > :,' -
f 7 ESTUARINE WATERS PROHIBITED FOR
°L*J 'HARVESTING IN DEPURATION AND
. RELAY PROGRAMS
DESIGNATED HARD CLAM DEPURATION AREAS EEFFECTIVE JUNE 29, 1957, 3-:- 7,-,7..1o,;.*
.***,,o.*t K , .* :KL*N "* *"'""
DESCRIPTION
- ;:: i::: , * " - . ..
\ ' ---. . .X, , I * - o.*Lk ---** *i I *,..--AAA-v t" . . * - .J "
-* "1 .'* - ": " "" - * ,,, ! * :: , - .*.-' .:'q F -' ': -., * ,, * ] ... * - -
--- - * . . .. ". ... * "::" 51 SC.*I " A
. .ŽN. '::-. *
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ATTACHMENT D
MULLICA RIVER 0YSTEh 6hI2W buiJ DIATA 1974 - 1986 MOSS POINT! BED FRENCHES POINT BEDi AGE COMPOSITION % BED AGE COMPOSITION l BED # SPAT AIU*tJAL CONDITION OF P0oUILATION # SPAT ANNUAL CONDITION OF POPULATION EAR YEARLING OYSTERS /BUSiUM-L :,0RTALIT YEARLING I OYSTERS T YSTERM, SPAT j 0_____
OYSTER SPAT 15.8 30.6 25.I8 43.6 ND. 1,D!
ND 24.1 60.1 ND ND 974 79.3 3.2 28.1 68.7 53 5.6 80.9 5.2 25.6 69.2 77 6.4 975 91 I8 0.3 2.1 97.6 3. 5.9 85.9 0.2 3.2 96.6 2 10.4 976 78.7 12.'3 3.1 84.6 132 11.4 67.7 6.0 0.9 93.1 46 24.0 977 5 .84.7 8.8 14.7 76.5 80 6.2 65.3 1.0 4.1 94.9 13.7 978 5,.0 4.9 84.2 65.7 0.6 33.7 1635 81.1 62.5 0.8 36.7 1066 979 91.2 .1.0 4.2. 1 56.9. 31 980 3.0 43.9 53.1 13 5.3 81.0 10.2 87.4 30.5 6.3 63.2 384 901 56.8 59.1 14 .0 26.9 1145 11.7 94.7 13.3 17.7 68.9 178 73.8 8.5 19.8 71.7 80 982 11.9 78.2 18.6 13.0 68.4 245 28.9 5.1 66.0 394 11.3 983 81.4 1.7 85.3 .7 12.3 86.0 21 1.7 7.3 91.0 21 984 94.8 36.6 65.8 59.7 3.0 37.3 6751 34.6 985 65.5 39.3 0.7 60.0 235 2 j.5 74 62.1 45.2 21.2 54.0 24.8 262' 986 1o.4 33.3 30.8 35.9 ND - No Data Available
- 37 qt./bushel Source: Nacote Creek Shellfish Office Records