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Inventory of New Jersey'S Estuarine Shellfish Resources, Joseph, J. W., Us Department of Commerce National Oceanic and Atmospheric Administration, National Marine Fisheries Service, December 12, 1986
	ML072670560
Person / Time
Site:	Oyster Creek
Issue date:	12/12/1986
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, 88-309, TAC MC7624
	Download: ML072670560 (143)
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{{#Wiki_filter:J 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: PROJECT NO.: SEGMENT NO.: NEW JERSEY 3-405-R 1 PROJECT TITLE: INVENTORY OF NEW JERSEY'S ESTUARINE SHELLFISH RESOURCES PERIOD COVERED: JULY 1, 1985 to JUNE 30, 1986 PREPARED BY: A OES W. JOSEPH, Y OLOGIST APPROVED BY: RUSSELL A. COOKINGHAM, DIRECTOR DIVISION OF FISH, GAME AND WILDLIFE DATE: DECEMBER 12, 1986 ABSTRACT The inventory, program initiated in 1983 continued. During Segment 1, 304 stations were sampled in Barnegat Bay from Manto-loking to Manahawkin. Only the hard clam, Mercenaria mercenaria, was collected in significant numbers. The hard clam resource within the surveyed area of Barnegat Bay was estimated at 156 million clams. Inventories of St. George's Thorofare in Atlantic.County and Delaware Bay were also conducted. Charts delineating the distribution and abundance of the shellfish resources within these areas were prepared.The moratorium on lease ground applications which was imposed during Segment 4 of the previous project (3-332-R) continued during Segment 1.. Consequently, only two lease ground investigations were performed. The moratorium has recently been lifted and the field work associated with this activity will proceed as time permits in Segment 2.The hard clam relay-program continued to operate in Monmouth County. The reported harvest for Segment 1 was 5.7 million clams, an increase of approximately .47% over the previous segment. The acquisition of an IBM pc has greatly improved the ability to moni-tor relay harvest from specific relay areas thereby facilitating improved resource management. The Mullica River oyster beds were monitored for setting success, survival and overall bed condition. Both the seed and market beds were found to be in comparatively poor condition. Samples sent the Rutgers Oyster Research Laboratory in Bivalve, New Jersey for histological examination indicated that MSX infec-tion was a major contribution to the observed decline in bed con-dition. 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 1 the shellfish inventory program concentrated its effort in Barnegat 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 construc-ted to collect all hard clams 30 millimeters in length or greater.Sampling efficiency for other shellfish species varies according to the size of the organism.Stations were established at half-mile intervals in upper Barnegat Bay as this region has historically been a poor hard clam producing area. In the southern half of Barnegat Bay stations were established at approximately quarter mile interevals. 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. Dissolved oxygen was determined by Winkler titration. Salinities were deter-mined 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 out-lined in ASTM Standard D422-51 (modified). Using the Wentworth grain size classification, any sediment retained on a 2.0 millimeter sieve is considered gravel and any sediment passing through a 63 micron sieve is classified as mud. Results were expressed as percentages of gravel, sand and mud. Figure 3 (Attachment A) depicts sediment classifications for upper Barnegat Bay. Sediments for stations south of Toms River await analysis. The remainder of the sediment sample was washed through a 1.0 millimeter sieve and all material and organisms retained 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, identifica-tion 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, in-to 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 and old oyster shell it was not posssible to tow the entire 100 feet because the dredge would be-come clogged. .Therefore, individual tows were shortened to 50 feet in this type of substrate. At the end of the measured tow the ves-sel 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 clam densites (other. species also) are expressed in terms of number per *square foot.All hard clams and paired hard clam valves collected were measured to the nearest millimeter. A size-frequency distribution was constructed at all stations where a sufficient number of clams were collected (at least 100 clams). 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 A size-frequency distribution was constructed for the single station (BB85-i) which contained commercial soft clam (Mya arenaria)densities. Since over 4600 soft clams were collected at this sta-tion, a subsample was measured to determine the size distribution of this population. 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. distributions and densities of associated benthic organisms can be found in Attachment A (Table 1). A total of 304 stations were sampled in Barne.gat Bay from Mantoloking to Manahawkin. Like most of New Jersey's estuarine areas, many areas in Barnegat Bay were too shallow to be sampled even at high water. Charts showing station locations are contained in Attachment A (Figure 1)The commercially important shellfish species collected during the inventory of Barnegat Bay include the soft clam (Mya arenaria), blue mussel (Mytilus edulis) and the hard clam (M. mercenaria). Soft clams were collected in siginificant quantities at only one station and these individuals collected were small in size (X=31.5 mm). Blue mussels were collected at a number of stations in sparsequantities. Since most of the soft clams and blue mussels were too small to be efficiently retained by the dredge, quantitative estimates for these specie.s were not performed. Charts delineating the distribution and abundance of hard and soft clams in Barnegat Bay are shown in Figure 2 (Attachment A).HARD CLAMS As previously mentioned, the sampling program was designed primarily to sample hard clam populations in a variety of sub-strate types. The inventory program provided information not only on the distribution and abundance of hard clams but also data on mortality, recruitment, and year class strength.The hard clam was the most widely distributed shellfish species throughout Barnegat 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 observed 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. This source of estimation error was minimized to the maximum extent practicable by increa-sing sampling frequency in areas with moderate or high densities. Hard clam densities ranged from 0 to 0.65 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> .50 Adjacent stations with 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 Barnegat Bay*was developed. The hard clam resource was distributed over 22,185 acres within Barnegat Bay. The estimated standing stock of hard clams in the surveyed area of Barnegat Bay is 156 million clams. YEAR CLASS STRENGTH Due to the paucity of hard clams in much of Barnegat Bay, size-frequency distributions for the hard clam (M. mercenaria) were constructed for only seven of the 304 stations sampled (Figure 4, Attachment A) .Analysis of the size-frequency distri-bution for these stations where sufficient numbers of hard clams were collected indicates that only two to six year classes are represented~in many areas of Barnegat Bay. While a few younger year classes are represented, the general hard clam population in Barnegat Bay is dominated by a few large, older:year classes.Given the few number of clams measured and size-frequency distri-butions constructed, however, it is difficult to determine the actual year class strength in Barnegat Bay with any degree of validity.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.The dominance of the Barnegat Bay hard clam population by a few older year classes, as exhibited in the size-frequency dis-tributions, was documented further by examination of recruitment rates for various areas. Recruitment rates ranged from 0.0 to 11.1 percent with an average of 2.03% for all stations where hard clams were collected. Those areas with the highest recruitment rates occurred in the lower third of Barnegat Bay within a few miles of Barnegat Inlet. Within this genera-l area, however, there is no distinguishable pattern 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 Barnegat Bay was 13.2 percent. Predation associated mortality of adult clams was insignificant in all areas sampled. 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 2, sampling will be conducted in Little Egg Harbor Bay and proceed southward as time allows. The inventory program is scheduled to continue sampling New Jersey estuaries that have not been recently inventoried until all estuaries have been completed and the distribution of the shellfish within these estuaries delineated. Collection of the related data of recruit-ment 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. INVENTORY OF ST. GEORGE'S THOROFARE St. George's Thorofare is a dead-end lagoon off Absecon Inlet on the southern end of Brigantine Island. Shellfish distribution charts compiled in 1963 rated St. George's Thorofare as having a high commercial value with respect to hard clams. Although being condemned for the direct market harvest of shellfish for over 30 years, St. George's Thorofare has been one of the designated har-vest sites of the Atlantic County Relay Program from 1979 to 1983.St. George's Thorofare was sampled via the sampling methods des-cribed previously. Stations were established so as to adequately cover all areas of this 133 acre water body. Sampling was conducted June 3-5, 1985, but due to time restrictions the survey results were not reported in the completion report for project 3-332-R. Twenty-two stations were sampled between Rum Point and the northerly end of the thorofare, an area of approximately 126 acres. The two lagoons on the south side of St. George's Thorofare were not sampled since these confined areas precluded vessel maneuverability. Exact station locations are shown on Figure 5(Attachment A) .All field data, including depth, water quality analysis, sediment composition, clam density, and clam size, is listed by station in Table 2 of Attachment A.Distribution and Abundance The hard clam, M. mercenaria, was the most abundant and widely distributed molluscan species collected within St. George's Thorofare. Based on the mean hard clam density, each station was classified as being an area of occurrence, moderate density, or high density as described previously. Figure 6 (Attachment A) graphically presents.the distribution and abundance of hard clams according to the above classifications. Hard clam densities ranged from 0.0-5.13 clams per square foot with an overall average of 0.97 clams per square foot. The hard clam resource within St. George's Thorofare, which was calculated via the procedure initially described in the inventory methods sec-tion, was estimated to be 6.2 million clams.Year Class Strength Size-frequency distributions for the hard clam were constructed for twelve of the twenty-two stations sampled and are presented in Figure 8 of Attachment A. Nine to thirteen year classes are repre-sented in St. George's Thorofare. From review of the size frequency distributions it is apparent that this area has experienced success-ful spawning, setting, and survival on a fairly regular basis.Recruitment The average recruitment rate of St. George's Thorofare was de-.termined by the same procedure used for other inventoried areas.Recruitment rates ranged from 2.6 to 16.7 percent with a mean of 7.8 percent. Unlike most other areas inventoried, recruitment rates within St. George's Thorofare exhibited less variation be-tween stations, although this observation may be the result of greater sampling frequency. ~Benthic Invertebrates Table 3 presents the densities of organisms collected by the hydraulic clam dredge. Thirteen species of benthic invertebrates were collected by the dredge, which, due to its design, collects benthic invertebrates at varying rates of collection efficiency. Estimates of invertebrate density were calculated when possible.The hard clam was the most abundant and widely distributed species collected by the hydraulic dredge, occurring at 19 of the 22 sta-tions (86.4%) sampled. Razor clams (Ensis directus), blood arks (Anadara ovalis) , and pitar clams (Pitar morrhuanus) were the next most abundant species with the remaining species being distributed throughout St. George's Thorofare in reduced densities. Benthic samples were also collected with a Petersen bottom grab. However, in an effort to expedite the sorting and identi-fication of these samples, only molluscan intertebrates were iden-tified.Eight species of molluscan invertebrates were collected in 22 grab samples. The small bivalve Tellina sp. was the most abun-dant and widely distributed species occurring at 50% of all stations.As exhibited in Table 3, the remaining species were distributed throughout St. George's Thorofare. Juvenile hard clams were collected at four of the 22 stations sampled (stations 1, 2, 3, and 5). An estimated 1.8 million juve-nile hard clams (i984 set) exist within the surveyed areas of stations 1, 2, 3, and 5. These juveniles ranged in size from 1.7 to 9.3 mm, with this wide variation probably the result of multiple spawnings in 1984 as well as environmental factors affecting. growth.While juvenile hard clams are subject to great predation pressure following settlement, their abundance at these stations up to one year later was a propitious finding of the resource survey. The occurrence of juveniles in conjunction with theabundance of adult hard clams of many size classes is a further indication of the vitality of the resource within St. George's Thorofare. Given that it is still under review by State personnel, the report on the resource survey of St. George's Thorofare is not in-cluded as an attachment to this publication. However, tables and figures- presenting survey results are included in Attachment A. INVENTORY OF LOWER DELAWARE BAY During the spring of 1986, the Bureau of Shellfisheries was presented with the opportunity to extend its shellfish inventory project into Delaware Bay. The systematic inventory program, which was initiated in Raritan and Sandy Hook Bays in 1983, has proceeded southward completing stock assessments for all estuaries as far south as Manahawkin. Because of this systematic approach, the Delaware Bay segment of the project would not have been initi-ated for several years had it not been for the fortuitous interest of a couple of oyster companies in determining the availability of commercial concentrations of soft clams, Mya arenaria, and/or hard clams, Mercenaria mercenaria, in this bay. The interest of Mr. Robert Morgan of Port Norris Oyster Company and Mr. Lee Robbins of Robbins Brothers, Inc. provided th Bureau's personnel with a unique opportunity to develop a baseline survey for deter-mining a resource inventory in the lower Dealawre Bay. Since these individuals were also interested in utilizing available commercial gear, i.e. an escalator dredge, the Bureau was able to perform the survey without diverting equipment or essential personnel from its established work schedule. The vessel and operator were provided by these individuals, while the Bureau provided logistical support and the personnel required for the survey.AREA The area for this survey encompassed the lower Delaware Bay, from the Cape May Canal to the Southwest Line. This area and sampling stations are illustrated in Figure 9. Because most of this area has been leased for oyster cultivation (Figure 10) every attempt was made to select stations which did not infringe upon leased areas, except for leases held by Mr. Morgan or Mr. Robbins.Although it was the intention of.the survey personnel to establish the stations systematically, a number of constraints required alter-ations to the systematic approach. These constraints included: operational limitations of the harvesting gear and vessel, bottom topography, leased ground arrangements, and the parochial interests of the individuals sponsoring this effort. A sampling regime was developed to provide the most comprehensive information within the available time frame. The survey effort was influenced to a large extent by the suggestive evidence, yielded from oyster harvesting activities, of potential concentrations of clams.An effort was made to establish transects in an offshore/inshore and upbay/downbay direction. Certain areas were not included in the sampling regime because of substrate composition. The New Jersey side of lower Delaware is comprised of extensive, shallow flats which are characterized by soft, fluid muds. These areas exhibited very little biological activity and by necessity were quickly discounted as sample sites.Likewise, areas which were composed of packed sand or a sand-peat combination had to be discounted. These substrates proved difficult for the dredge to penetrate and as a result, the dredge was grossly inefficient. This condition was found, primarily, along the shore-line adjacent to Cape May County (Figure 10) . The dredge was the most efficient in bottoms having a compo-sition of sand, shell, and mud; a loosely packed but somewhat stable bottom. This type of substrate was usually found adjoining leased areas, so most of the sampling effort took place along the perimeter of the leased grounds.METHODS As previously noted, the vessel and harvesting gear for this segment of the Shellfish Inventory Project were furnished by Mr.Morgan and Mr. Robbins. The vessel was an escalator dredge boat which was active in the Chesapeake Bay soft clam fishery and leased for this survey. This vessel was selected because of the captain's experience with the soft clam fishery and the perception that fishery gear available locally was inadequate to evaluate the commercial status of the targeted species.The dredge was an integrated unit operated hydraulically by the captain from the aft area of the vessel. Angle of the dredge water pressure, flow rate to the water manifold, and speed of the conveyor system were conveniently controlled from this location. Materials collected were transported by the conveyor system past this control area for culling. This arrangement provided for an operation that could be handled by a single individual under routine operating conditions. The dredge used a 91 cm cutting bar with a water manifold and series of digging nozzles, arranged approximately 25 to 30 cm above the cutting bar. Materials collected by the dredge were moved along a 1.9 cm mesh conveyor system to the culling area.Target species were removed from the conveyor, counted, and measured. Notation was made for associated species collected. Assessment of the bottom penetration by the dredge was based on the captain's experience and the system's operating angle. A penetration of 15 to 20 cm was thought to be typical. The har-vesting efficiency was affected by water depth and declination of the dredging system to the bottom. The maximum operating depth ranged from 15-18 feet. A critical operating angle was reached when the angle of declination began to exceed, approxi-mately, 50 degrees. Beyond these limits, the system failed to carry materials past the surface of the water. The optimum opera-ting depth was 10 to 12 feet.The sampling interval at each station was 10 minutes. During this period all materials collected were observed and pertinent information was recorded. Boxes were collected and used to provide a measure of recent mortality. Salinity, temperature, and sediment samples were not taken during this phase of the project.The position of each station was determined by using Del Norte Technology, Inc.'s 520 DDMU Transponder system. This horizon-tal positioning system utilizes frequencies in the microwave range and provides an accuracy of + 1 m over an operating distance of 80 kms. The New Jersey Plane Coordinate System was the horizon-tal control data base for conversion of the distance measurements. The location of each station was converted to a position of latitude-longitude, using the formulas for computing geodetic position from Transverse Mercator coordinates. The distance traveled during each sample interval was cal-culated by recording position information at the beginning and end of each station. This datawas mathematically manipulated to provide the distance between end points. These values were used to determine the area of coverage and the density of clams per square foot. The mean linear distance for these measurements was 657 feet. The range for the measurements was 172 to 1506 feet. Density values for clams were determined by dividing the number of clams harvested by the area covered during each sample interval. Because of the vagaries of the currents, winds, and the effect of the dredge on the course taken by the vessel, the.dredge path was usually sigmoidal in shape. The density values, shown in Attachment A (Table 4) , are, therefore, considered to be liberally skewed. To obtain a more accurate perspective of the distance covered during each sampling effort, a series of measurements was taken at 10 second intervals during several different tows. The mean value for these measurements was 1027 feet or nearly twice the mean linear distance computed from the distance measurements of the individual intervals. This would imply that clam densities are considerably lower than computed for the individual stations.All clams collected, as well as paried valves, were measured to the nearest millimeter. A size frequency distribution was constructed for each station when a sufficient number of clams was collected (N=100) .When an excessive number of clams was collected, a subsample was used for the size frequency distribu-tion graph.. This situation occurred at only one station, #44, when 323 clams were collected. The subsample used for the size frequency distribution was 17.8. This information is also included in Attachment A.Hard clams collected were graded into size categories accor-ding to their relative commercial importance and are presented in Attachment A as a percentage of the total collected. These categories are as follows: Type Length(mm) Seed 30-37 Little Necks 38-55 Cherrystones 56-76 Chowders >76 RESULTS The objective of this project was to define and delineate the shellfish resource of lower Delaware Bay, in particular, exploi-table concentrations of the hard clam, Mercenaria mercenaria and the soft clam, Mya arenaria. For a. number of years, dredging activities on leased oyster grounds have yielded small numbers of hard clams and some evidence of the occurrence of soft clams.A study conducted by the University of Delaware had indicated that, although hard clams did occur in the Delaware Bay, the re-source's potential for exploitation was marginal (Keck, 1974).This report did not indicate the presence of any soft clams in thebay. Shell material excavated from the bay bottom during this project contained soft clam valves indicating that the -21 species possibly did occur in the region at one time.A total of 49 stations-yielded 1515 hard clams. The abundance and distribution of hard clams found in this survey can be found in Attachment A. In previous reports, McCloy and Joseph (1984, 1985)had established three classifications for the relative abundance of hard clams. These classifications are as follows: Clams per square foot Density Classification 0.01 -0.19 Low 0.20 -0.49 Moderate>.50 High These standards were established after evaluating survey results previously acquired under earlier phases of this project and the reported results of other researchers. Assuming that these classifications have relative value to a commercial fishery, the hard clam resource of Delaware Bay appears to be insignificant. Density values ranged from 0.0017 to .422 clams per square foot. Twenty-four stations had densities between 0.01-0.19 clams per square foot and would be considered low density areas. Moderate densities were found at only two stations (46 and 37), while no station yielded sufficient quantities to attain a higher classification. It should be remembered that these densi-ty values were based on the linear distance computed for each sample interval. The computed values are probably considerablyjhiqher than what actually occurs in the bay. The number of clams, mean, and range measurements, as well as mortality estimates, are presented in Attachment A. The mean size for the hard clam seems to increase in both an inshore and upbay direction. Similar findings were reported in the University of Delaware's hard clam survey (Keck, 1974). In addition to the relative low densities of clams found, the available resource appears to have very little commercial value. Ninety-two percent of the clams collected exceeded the current market limit of 56mm for the valuable little neck clam, while 70.8% exceeded 76mm, the market limit for cherrystone clams. Eight stations had a predominance of cherrystones (56-76mm). For those stations where size frequency information was recorded, thirty-four were dominated by chowder size clam, length >76mm. Seventy-three percent of the clams collected were taken at only 7 stations. Size frequency distributions have been provided for these stations in Figure 11.The mean length of the clams taken was 83.2mm (s.d. 20.8mm).AGE OF RESOURCE The results of this survey imply that the hard clam resource of lower Delaware Bay is relatively old, with very little annual recruitment. A number of studies have been conducted over the years to determine the annual incremental growth rate for the hard clam. Haskin (1952-1954) in Delaware Bay, Haven & Loesch (1970) in Chesapeake Bay, and Fritz (pers. comm. 1986) seem to agree that under normal growing conditions, hard clams will attain a size of 60-70mm after 6 to 8 years. Growth rates appar-ently slow considerably after this stage of development and thereafter the annual increment may only be a millimeter or two.Several clams collected during this survey were aged by personnel at the Rutgers Shellfish Research Laboratory and found to have an estimated age in excess of 40 years. It should be noted that these clams were some of the larger ones collected. According to the aging data available, approximately 84% of the clams collected in this survey probably were at least 8 years of age or older.DISTRIBUTION OF RESOURCES The lack of sizeable hard clam resource in Delaware Bay may be due to substrate composition. Because bottom salinities are usually above .20 ppt in the lower bay, salinity is not considered to be a limiting factor. Several researchers have reported that substrate appears to be an influencing factor. Keck (1974) found that clam densities were highest in areas with a composition of silt and sand. Ropes and Martin (1960) reported that the hard clam seems to prefer a substrate mixture of sand and mud. Loesch*and Haven (1972) found that clam densities were lower in soft, unstable bottom. The highest densities of clams were found in areas having a relatively stable bottom with a composition of sand, shell, mud or silt. This condition is descriptive of those areas adjoining the leased oyster grounds in the bay. The most productive clam areas were, in fact, situated along the periphery of leased grounds. A number of researchers have indicated that aggregrate materials (shell, gravel., etc.) may deter predators, thus offering protection to small clams. The accumulated shell deposits may offer the clams protection by making it more difficult for predators to reach the burrowed clam. Major clam predators in the bay are: the blue crab, Callinectes sapidus; the horseshoe crab, Limulus polyphemus; xanthid crabs; the whelks, Busycon carica and B. canaliculatum; the spider. crab, Libinia emarginata; and the snail, Polinices duplicatus. Limulus and Polinices were the most common predators collected. Areas where mud (Stations 14-21)or hard pack sands (Stations 26-30) occurred, clam density was either extremely low or no clams were collected. Densities were usually higher, as already noted, in aggregate bottom. The most productive stations were 32 through 39, where shell material was in abundance. The greatest number of predators was also found at these stations.RECRUITMENT For purposes of this project, McCloy and Joseph (1985) have defined the recruitment class as being those clams between 30 and 37 mm in length. It is their supposition that these individ-uals comprise a single year class and would be expected to be re-cruited into the fishery within the coming year. Haskin (1952, 1954) had previously indicated that the annual growth for hard clams along the Cape May shoreline of Delaware Bay was approxi-mately 10-12 mm during their first several years of development. The definition is, apparently, applicable for this survey, as clams in the 30 to 37 mm range could be expected to enter the fishery within the same year. Based upon the results of this survey, the percentage of recruitment size clams available to the fishery was 0.9%. For comparison, McCloy and Joseph (1985) found the is a composition of shell, sand, and mud. There is sufficient evidence in the literature to suggest that the composition of the bottom is of significant importance to the survival rates of juvenile clams. Unfortunately, most areas in lower Delawre Bay do not seem compatible for the development of commercially exploitable concentrations of hard. clams. average recruitment rates for the Manasquan and Shark Rivers to to be 11.9 and 4.8 percent, respectively. All the recruitment size clams taken in this survey were found at stations. 33, 34, 39, and 40. These stations are also those which yielded the lar-gest numbers of older clams. This finding would further support previous works that.stated aggregate substrates afforded the greatest protection from predators. Hydrographic conditions in the bay may also influence recruit-ment. The general counter clockwise circulation pattern in the lower bay may disperse larvae beyond the range of. the best setting areas. Juvenile clams setting in areas without the aggregate substrates would become easy prey for the bottom foraging blue or horseshoe crabs, which are in abundance in the lower bay during certain times of the year. Loss of larvae from the system, inade-quate :phytoplankton production, and unstable bottom are also poten-tial factors for the limited availability of recruitment size clams.

SUMMARY

.This survey'has supported data collected during previous surveys that indicated the existence of only marginal populations of hard clams in Delaware Bay. Although valves of the soft clam, Mya arenaria, were collected, there was no evidence to suggest that this species occurs in the bay. The available hard clam resource appears to be relatively old, with limited annual re-cruitment. Most of the resource was found in areas adjacent to producing or formerly producing oyster bottom where the substrate JOB NO. 2 INVESTIGATION OF LEASE 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 re-view. Following this review process, the Council makes recommenda-tions to the Commissioner of the Department of Environmental Protec-tion 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 (commercial and recreational) utiliza-tion.In order to assist the Council in their decision, each lease application is investigated for shellfish productivity with a bio-logical 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, salin-ity, pH, depth, and temperature). This information, in addition to the history of the area, is. used to determine the productivity of the area.Each prospective lease is classified as productive, potentially 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 various shellfish species, although the classification is generally associatedwith hard and soft clams and oysters. An area can be productive habitat for one species and nonproductive for another.The Mullica River oyster seed beds, for example, are extremely pro-ductive 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 produc-tive or nonproductive are termed potentially productive. The intensive sampling program of Job I has involved the en-tire staff on a full time basis., greatly reducing the manpower available to perform lease ground investigations. This resulted in a backlog of lease applications which necessitated the implementa-tion of a moratorium on all lease applications. This moratorium, which was announced during Segment IV of the previous project (3-332-R), remained in effect during Segment I of the current pro-ject.In light of the above, only two lease ground investigations were performed during Segment I. An investigation of the two lease-applications, both of which were located in Little Egg Harbor Bay, found them to be productive in terms of natural hard clam re-cruitment. Following a review of the biological reports submitted for these lease applications, the Atlantic Coast Shellfish Council denied both leases so that these areas could remain available for public use. Seven other applications were cancelled 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. Although originally scheduled to be lifted in the spring of 1986, the moratorium on lease applications was not lifteduntil October 1986. It may be necessary, however, to reinstate the moratorium since the staff of the Bureau of Shellfisheries is more limited than in previous years. 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 71 million clams have been utilized from condemned waters.The intensive sampling program of the Inventory Program (Job I) 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 participant. During Segment I, 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. Harvest and catch per effort data by area are included in Attachment B.Table I (Attachment B) includes the relay summary data for 1985 as well as the first six months of 1986. Harvest data for specific relay harvest areas (i.e. 1-il, W, X, Y, Z) are not in-cluded for the 1985 data as staffing limitations prevented the extraction of that information from the relay harvest receipts.However, the recent acquisition of an IBM personal computer has greatly ameliorated this arduous task and has facilitated improved monitoring of harvest from specific relay areas. The continued use of the IBM pc will improvethe management of the hard clam stocks associated with this program.The total reported harvest for all relay areas in 1985 was 5,144,862 clams. Those previously mentioned areas of northern Monmouth County (excluding the Manasquan and Shark Rivers) received the most activity with 3,646 man-days of effort and a resultant har-vest of 4,.855,254 clams (over 94% of the total 1985 relay harvest).The mean catch per effort for all relay areas in 1985 was 1316 clams/man/day, which is up 12.9% from the 1984 figure. It is un-known whether this increase is due to an actual increase in harvest or more accurate reporting by participating shellfishermen. The harvest data of the first six months of 1986, as shown on Table I (Attachment B), provides a more precise representation of the relay harvest. During this period, 1797 man-days of effort yielded a total reported harvest of 2,422,730 clams and a mean catch per effort of 1348 clams/man/day. Section 11 in Raritan Bay yielded the highest catch per effort (1,675 clams/man/day), but contributed only 22,343 clams to the total harvest for the first half of 1986.Shark River had the lowest catch per effort during this period (963 clams/man/day), although this figure is up approximately 19%from the Shark River catch per effort figures for 1984 and 1985.Relay totals for Segment I are up substantially from those of Segment V of the previous project (3-332-R) .The reported relay harvest for Segment I was 5,747,953 clams, up 47.2% from the previ-ous segment. Effort (4322 man-days) and catch per effort (1330 clams/man/day) were up 26% and 16.9%, respectively, in comparison to the previous segment. The factors contributing to these in-creased figures are unknown, and speculation on the matter would be of little merit. 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 program, bed condition, and oyster mortality. The regular monitoring of the seed and market beds continued to determine setting success, mortality and overall bedcondition. 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 within each sampled. 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 relatively poor condition in comparison to 1984 figures. French's Point consisted of 65.8%oyster with a mean annual mortality of 34..6%. Moss Point data was nearly identical, being composed of 65.5% oyster with a mean annual mortality of 36.6 percent. In contrast, French's Point and Moss Point beds consisted of 85.3% and 94.8% oyster (respectively) in 1984 and had annual mortalities of three percent or less. Although showing a decline in bed condition, both seed beds experienced a good set in 1985. The age composition of French's Point consisted of 59.9% spat with Moss Point consisting of 39.3% spat.The Mullica River market beds, with infrequent natural set, greater disease and predation pressure, and periodic harvest, con-tinued to exhibit a decline .in bed condition since being planted during the transplant programs of 1979-1981. The annual sampling of the market beds indicated that the Fitney Bit bed was composed of only 16.8% oyster and had a total mortality of 46.1 percent.The Reef Bed consisted of virtually 100% shell as only nine live oysters were collected in nearly seven bushels of shell. The es-timated mortality was 52.6%, although the sample size was minimal.Samples of oysters collected from the seed and market beds were sent to the Rutgers Oyster Research Laboratory in Bivalve, New Jersey for histoligical examination. Sample analysis confirmed that the parasite Haplospordium nelsoni (MSX) is at least partly responsible for the high mortalities observed on all beds. In addition, the protistan parasite Perknsus marinus ("Dermo") was detected in three oysters collected from the Moss Point bed and was determined to have caused the death of one. gaper examined.The extensive oyster mortalities experienced in the Mullica River estuary during Segment I were comparable to those experienced in Delaware Bay during the same period. Literature Cited Keck, R. T., D. L. Murer, L. Watling, and H. Lind. 1974. The Hard Clam Survey of Delaware Bay. A Final Report to the Delaware Dept. of Nat. Res. and Envir. Control and the Nat. Mar. Fish Serv. Univ. of Del. 156 pp.Haven, D. and J. Loesh. 1970. A Study of the Hard and Soft Clam Resources of Virginia, Ann. Rept. 1 July 1969-30 June, 1970 to Bur. Comm. Fish Mimeo. 66 pp.Haskin, H. H. 1952. Furthur Growth Studies on the Quahog, Venus Mencenaria. Proc. Nat. Shellfish. Assoc. 42: 181-187.Haskin, H. H. 1954. Age Determination in Molluscs. Trans.N. Y. Acad. Sci. Ser. 2, 16: 300-304 McCloy, T. W. and J. W. Joseph. 1985. Inventory of New Jersey's Estuarine Shellfish Resources. NJ Div. of Fish, Game &Wildlife. Completion Report to Natl. Mar. Fish. Service.28 pp.Ropes, J. W. and C. E. Martin. 1960. The Abundance and Distri-bution of Hard Clams in Nantucket Sound, Massachusetts. 195 pp. U. S. Fish and Wild Serv. Spec. Sci. Rept. Fish.No. 354: 1-12. ATTACHMENT A ATTACHMENT A CONTENTS LIST OF FIGURES PAGE Figure 1 Barnegat Bay Station Locations A-i Figure 2 Shellfish Distribution in Barnegat Bay A-4 Figure 3 Barnegat Bay Sediment Classification A-7 Figure 4 Barnegat Bay Size-Frequency Distributions A-8 Figure 5 St.. George's Thorofare Station Locations A-10 Figure 6 Shellfish Distribution in St. George's Thorofare A-lI Figure 7 St. George's Thorofare Sediment Classification A-12 Figure 8 St. George's Thorofare Size-Frequency Distribution A-13 Figure 9 Delaware Bay Station Locations A-16 Figure i0 Delaware Bay Lease Areas A-17 Figure 11 Delaware Bay Size-Frequency Distributions A-18 ATTACHMENT A (cont.)CONTENTS SHELLFISH INVENTORY

SUMMARY

TABLES PAGE Table 1 Barnegat Bay A-20 Table 2 St. George's Thorofare A-82 Table 3 St. George's Thorofare Associated Organisms A-87 Table 4 Delaware Bay A-88 Table 5 Delaware Bay Associated Organisms A-97 SHELLFISH INVENTORY BARNEGAT BAY STATION LOCATION I se V2 52 4 m' .s ,!-°°,-eo G on. w~;,-

A AM O.. .*U ..-.O.....* .."

FIGURE 1 SHELLFISH INVENTORY BARNEGAT BAY STATION LOCATION 0-",iyr-, I, 1'3 2 *9 9,2 3 -12 2 3 '2." 3 5--..::L 2 .-_9 , ."3 '5., * .1430 2'. 2. .0-25 * " , -. 2. .-, 2,-49 ..1o 2' *--L 30 0 0 (,.3:,4. / ',- \,2.',. _s\'/ 11 01 1 '5 2-13 5.." " " .' .._ .,'/r \.,-\ " : Z~n J-Lbr -LD11 -L N V Zi 1. Ul'tx BARNEGAT BAY STATION LOCATION-127 S*-2 9 , . FIGURE 2 SHELLFISH INVENTORY BARNEGAT BAY DISTRIBUTION AND ABUNDANCE OF THE HARD CLAM, MERCENARIA MERCENARIA

a 'A W il HARD CLAM DENSITY©©NONE OCCURRENCE f--. -'_ -_ .- .... ... .S- '--:. .MODERATE HIGH NO DATA (E SOFT CLAM BEDS M 16 4 SHELLFISH INVENTORY BARNEGAT BAY DISTRIBUTION AND ABUNDANCE OF THE HARD CLAM,. MERCENARIA MERCENARIA

...... -n.= __ '2 HARD CLAM DENSITY©NONE OCCURRENCE MODERATE HIGH NO DATA SHELLFISH INPENTORY BARNEGAT BAY DISTRIBUTION AND ABUNDANCE OF THE HARD CLAM, MERCENARI-g..NERCENARIA 3.'I, HARD CLAM DENSITY flOA4. N~OAMAflofl -~ a ~ ~ eon -a~~©)NONE OCCURRENCE MODERA TC HIGH~/fl/i~Ji II NO DATA FIGURE 3 SHELLFISH INVENTORY BARNEGAT BAY SEDIMENT CLASSIFICATION L-)L.L V LLL, ]Jib+/-KIbi iu1" UP': Mercenaria mercenaria Llya arenaria--- 30 24 4ý16 24-16 -/I I I I A BB 85-1 n=265 x=31.5>,20 u z C0 10 BB 85-147 n=106 x=70.2 IV A*/.(4 40 7 SIZE (MM) 7 100 30 50 80 sIze (m)BB 86-178 n=1 1 3 x=64.9 24 16>4 u Cq W C8 DL4 do8 BB 86-186 n=112 x=65.5 C4.U~8 RT7?P IMMI 110 :50.80. 110 .... ::LLc.L -,L L iti L U e[Ld.iaL'R M~ya arenaria 30 BB 86-197 30 n=125-x=74o.3>2 20ý20 10-10 30 50 80 SIZE (MM)24 BB 86-220 n=103 X=67.4 16*8 50l 80 BB 86-203 n=102 x=69. 6 30 51 SIZE (MM)* ,,J %J SIZE (MM) A-10 FIGURE 5 1985 SHELLFISH INVENTORY ST. GEORGE'S THOROFARE STATION LOCATIONS Nautical Miles 0 2 A-I1 FIGURE 6 1985 SHELLFISH INVENTORY ST GEORGE'S THOROFARE DISTRIBUTION AND ABUNDANCE OF THE HARD CLAM, Mercenaria mercenaria Noutical Miles 0 HARD CLAM DENSITY ( NO DATA 0 NONEOCCURRENCE 0MODERATE* 0 HIGH A-12 FIGURE 7-1985 SHELLFISH INVENTORY ST. GEORGE'S THOROFARE SEDIMENT CLASSIFICATION Nautical Miles 0 2 Sediment Classificotion Sand p.,., Sand Mud Mixture Mud SIZE FREQUENCY DISTRIBUTIONS OF: 15 Mercenariza mercunari .a SG85-1 SG85-2 10 n=82 10 n=121 6-.6.. C) X=59. 9 z dp 5 C-20 50 80 I.l0 20 50. 80 11.0 SIZE (MM) SIZE (,Il)15 15 SG85-3 SG85-4 n=66 n=84 1X579 10 X-=69. 6 O)CC.~*..j. ..5-5 20 .5,o0) l 201 n( U)M.; T-.,: (MM SIZE FREQUENCY DISTRIBUTIONS OF: Merccenaria mle.iseaz2i. 1.5 SG85-5 n=1.44 X=6] .8 SG85-6 10 rl c ,I, fi oko n= 220 X=80.9 5.-!5 50 20 50 80 110 SIZE (MM)20 1 1 80 110 SIZE (MN)15 10 SG85-7 n=76 X= 74.7 15 10 SG85-8 n= 194 0 7-=66.6 01 5 20 80 2oC r, I SIZE FREQUENCY DISTRIBUTIONS OF: Mercenlaria morcOnarla 15" SC85-10 SG85-11 10- n=158 10 n=259 X=73. 9 X=69.1 C4 C4 5 5-20 50 80 110 20 50 80 110 SIZE (MM) SIZE (MM)15 .1.5 SG85-12 SG85-16 CD 0 10 n=195 n=1.70 X=74.7 X=67.3 z UP 5 20 50. Bo)1 20 50 B0 i10 Ji_________________________________________ ~.;T'/,E (I1?1' A-16.G.Figure 9 Q A-17 LEASED SHELLFISH AREAS DELAWARE BAY:APE MAY CANAL 750 10 750 05'7690 0*Figure 10 5176 t50777Y67 5551526072073 5T~.5 .13.75 12.5 10 .8.75 7.5 4 .2s5 5 3.75 2.3..23 7.5*A6 MAy.S66-37 5-358 3- 85a 15-12.5 11.25-I.-3.73.75.23]7.5.5172 FEQUPC1Y DISTRIBUTION5 OF I-6 cemk 34 ceohr 7 5c56- J6 1-225..79.9 51 3.7s-2.5 -1.23-2. 30 60 so 0 70 5o 55 330 2 I .57 o 6 5 610 7. 0 SIZE (,.)300 # TO c SIZE. rFlFqlr.NCY I,5S5735UTIO 5F3.5 2.5 33.25--06-36 n- JlO 13.0.1 12.5 .S1.25 10. 3-75 3.35.-25 SIZE 7p 5 fl3S53I3TIMON OF'.-IIercensrn. 55.1,.5 S¢8-39;- )o" I15 3.* 40 30 60 70 SIZ5 (E5a .so 90 303 .1.0 70 30 530 s 70 SIZE (5-I 0 9 I0 wIU FIGURE ii 1.22.2.5.5-32.5 .2 .5 1.25 SIZE F2PFQWPCY r)ISTIlnUTTON OF: Drt'lAWARr. DAY SU86-1 5.22.22 0 0 0 50 60 70 00 90 00 I10 Slt IZE 2 0 50 60 70 80. 90 1.0 20 SIZ (22)H 625-I3.75-22.5 -12.25 1.5-2.5.2.5 2.25..2123. 71522122C5 020002002200 00 0ELAWARE BAY-c, 6-. r l 2- 260.3 20 0 00 50 60.0 E0 9. 2.0 1 20 FIUR (1)FIGURE Ii1. A-20 TABLE 1 SRELLFISH INVENTORY SUMtARYýTATION NUMBER BB85-1 BB85-2 BB85-3 { BB85-4 ] BB85-5 ,ATITUDE N 40002.25' 40'02.00' 40001.75' 40001.50' .. 40.01.50',ONGITUDE W 74003.36' 74o03.36' 74003.68' 74o04.00' 74a04.22OLLECTION DATE 5/22/85. 5/22/85, 5/22/85 5/22/85 5/22/85 IDE AND HOURS High + 4.0 High + 5.0 High + 5.5 Low + 0.0 Low + 0.0 EMPERATURE AIR 12.0 12.0 18.0 1 19.0 21.0 0c WAE 18.2 ND 1 ND F ND 18.4°C WATER 18.0 ND ND ND 18.4 D.O. S 8.1 ND ND __. ND 9.3 (ppm) B 8.3 ND ND _ ND 9.4 ALINITY .5 20.O ND ND ND 20.0 (ppt) B 20.0 ND ND ND 20.0___S 7.7 ND ND ND 7.7 B 7.7 ND ND ND 7.7_:PTH (f t) 51 6' 5'16 71% GRAVEL 0.0 0.0 0.0 0.0 0.0 IBSTRATE % SAND 94.8 81.4 92.2 84.4 60.2% MUD 5.2 18.6 7.8 15.6 39.8 3TIMATED HARD CLAM I(#/ft") 0.0 0.0 0.0 0.0 0.0% SL ND ND ND ND ND)M.MERCIAL LN ND ND ND ND ND SIZES CS ND ND ND ND ND 17 ND ND ND ND J ND 5MBER CLAMS COLLECTED 0.0 0.0 0.0 0.0 0.0 ZE RANGE (mm) ND ND ND ND ND SIZE (:mm) ND ND ND ND ND MORTALITY 0.0 0.0 0.0 0.0 0.0 A-2 1 TABLE 1 S IELLFISH INVENTORY SUMRPARY'PION. NUM4BER. BB585-6. BB85-7 BB58. B8-9 BB85-10 ITUDE N 4001. 75' 40°01.75' 40002.25 j 40°01.25' 40°01.25'ýITUDE W 74 04.32' 74o04.00, 74 03.68' 74 004.32' 74 004.64'SECTION DATE.5/22/85 5/22/85 5/22/85 7/9/85. -7/9/85.AND HOURS Lowi+ Low + 1 Low + 1 High + 1 High + 4.5?ERATURE AIR 21.0 21.0 21o0 23.0 24.0 WC R ND ND ND 22.8 ND WATER -B ND ND ND 23.5 ND'0. s ND ND ND 7.1 ND pm ) B ND ND I ND 6.6 ND:NITY S ND ND ND 20.5 ND)pt) B ND ND ND 20.5 ND ND ND ND 7.7 ND BI B ND ND ND 7.7 ND?H (ft) 61 6' 5' 7' f 5'% GRAVEL 0.0 0.0 0.0 0.0 0..2;TRATE % SANDI_______%_SAND _ 38.0 49.0 14.8 38.6 35.8% MUD 62.0 51.0 85.2 61.4 64.0 MATED HARD CLAM:ITY (#/fth-) .0.0 0.0 0.0 0.0 0.0% SL ND ND ND ND ND IERCIAL LN ND ND ND ND ND ZES. CS ND ND ND ND ND CH ND ND ND ND ND ER CLAMS COLLECTED 0.0 0.0. 0.0 .0 0.0 RANGE (mm) ND ND ND ND ND ZE(;mm) ND ND ND ND ND RTALITY 0.0 0.0 0.0 0.0 0.0 A-22 TABLE 1 SHELLFISH INVENTORY SUMI4ARY BTATION NUMBER B85-11 BB85-12 BB85-13 BB85-14 BB85-15 ,ATITUDE N 40°01.00' 40000.501 40000.00! 40001.00' 40000.50, ONGITUDE W 74O04.64' 740046 7404.64', 74004.00, 74o04.00'.OILECTI ON DATE..." 7/9/85 7/9/85 7/9/85 7/22/85 7 7/22/85 IDE AND HOURS High + 5.0 High + 5.5 Low + 0.0 Low + 3.5 Low + 4 EMPERATURE AIR 24.0 26.0 26.0 25.0 25.5°C WATER S ND ND ND 24.-.9 ND B ND ND ND 24.:9 ND D.O. S ND ND ND 6.8 ND ND ND ND 6.7 ND ALINITY S ND ND ND 20.0 ND (.ppt) B ND ND ND 20.0 ND pH S ND ND ND 8.1 ND B ND ND ND 8.1 ND EPTH (ft) 6' 8' 6' 51 { 5!% GRAVEL .0.0 0.0 0.0 0.0 0.0 JBSTRATE % SAND 36.6 55.6 87.0 93.2 92.4% MUD 63.4 44.4 13.0 6.8 7.6 3TIMATED HARD CLAM I"NSITY (#/ft ) 0.0 0.0 0.0 0.0 0.0 SL ND ND ND ND ND DMMERCIAL LN ND ND ND ND ND SIZES cs ND ND ND ND ND CH ND ND ND ND ND JMBER CLAMS COLLECTED 0.0 0.0 o0 0.0 0.0'ZERANGE (ramn) ND ND ND ND ND SIZE (.rm) ND ND ND ND ND MORTALITY 0.0 0.0 0.0 0.0 A-.23 TABLE I SiRELLFISiH INVENTORY SUMMAY TION NUMBER BB85-16 BB85-17 BB85-18 BB85-19 BB85-20 ITUDE N 00 0 00 40°00.75' 40 00.50' 40 00.50' *40 00.00' 40°00o00'=IUDE W 0 0 0 0 74 03.68' 74 05.28' 74 05.91' 74o05.28' 74005 .91'DATE 7/22/85 7/22/85 7/22/85 7/23/85 7/23/85 Low + 5.0 High +0.0 High + 0.5 High + 3.5 High + 4.0?ERATURE AIR 27.5. 30.0 31.0 23.0 22.5 C WATER ND ND 25.3 24.2 ND N{ ND -ND 24.9 24.2 ND ,0.ND ND I 7.2 ND I ND ND ND 7.2 7.1 ND:NI TY S ND ND 20.0 ND ND)pt) B ND ND 20.0 20.0 ND S_____ND ND 7.9__ ND ND __B ND ND 8.1 8.1 ND'H (ft) 4 1 7 7 4 1' 7'% GRAVEL 0.0 0.0 0.0 0.0 0.0 TRATE % SAND 92.4 36.8 .39.0 92.8 L 68.8% MUD 7.6 63.2 61.0 7.2 _ 31.2 MATED HARD CLAM 2 ITY (#/ft-) 0.0 0.0 0.0 0.0 0.0% SL ND ND ND ND ND ERCIAL LN ND ND ND ND[' ND ZES Cs ND ND ND ND ND CH ND ND ND ND ND ER CLAMS COLLECTED 0.0 0.0 0.0 0.0 0.0 RANGE ( ND ND ND ND ND ZE (Mm) ND ND ND ND ND:ZTALITY i 0.0 0.0 0.0 0.0 .0.0 A-24 TABLE 1 INVENTORY

SUMMARY

TATION NUMBER BB85-2 1 BB85-22 BB85-23 BB85-24 BB85-25 A'iTITUDE N 40°00000' 39059.50' 39°59.50' 39059.501 39 0 59.50'*ONITUDE W 0 7 04 GU74o06.55, 74006.55, 74 05.91' 74 05.28' 74 04.64'.OLLECTION DATE 7/23/85 7/23/85 j 7/23/85 7/23/85 7/23/85 IDE AND HOURS High + 4.5 High +.5.0 High + 5.5 Low + 0.0 Low + 0.5 EMPERATURE AIR 24.0 21.5 2 23.0 23.0 24.5 WATER S ND ND ND ND ND ND .ND ND ND ND D.O0. S ND ND ND ND ND (ppm) B ND ND N ND ND ND ND ND ND ND (p BIT ND ND ND ND ND PH ND ND ND ND ND B ND ND ND ND ND 7PTH (ft) 6' 6' 7' 4' 4'% GRAVE L 0.0 0.0 0.0 0o..o 0.0 BSTRATE -% SAND 60.8 61.2 65.6 91.4 67.8% MUD 39.2 38.8 34.4. 8.6 32.2;TIMATED HARD CLAM]NSITY (4/ft_-) 0.0 0.0 0.0 0.0 0.0% SL ND ND ND ND ND)MMERCIAL LN ND ND ND ND ND SIZES CS ND ND ND ND ND CH ND ND ND ND ND IMBER CLAM.S COLLECTED 0.0 0.0 0.0 0.0 0.0 IZE RANGE (mm) ND ND ND ND ND SIZE (:mm) ND ND ND ND ND MORTALITY 0.0 0.0 0.0 0.0 0.0 A-25 TAB LE 1 S8ELLFISH INVENTORY SLJMMARY TICN. NUMBER BB85-26 BB85-27 BB85-28 BB85-29 BB85-30'ITUDE N 39059.00' 39059.00 39059.00' 39°59.00' 39 58.50'TUDE W 04.64' 74006.55 74 0 05.91, 74005.28' 74004.64, LE CTION DATE____ ___ 7/23/85 7/24/85 7/24/85 7/24/85 7/24/85 E AND HOURS Low + 1.5 High + 3.5 High + 4.5 High + 5.0 Low + 0.0 24.0 26.0 j 26.5 25.0 26.5 oc S 24.7 24.3 ND ND 25.1 WATER B 24.7 24 .1 ND ND 25.1.0. S ND 6. 7 ND ND ND ppm) B 8.3 6.7 ND ND 7.8 Fi INITY ND2.S~______ __ND 21.0 ND ND ND B 20.0 21.0 ND ND 21.5 S ND 7.9 ND ND ND B 8.1 8.1 ND ND 8.1 I'l (ft) 4' 6' 5' 6' 41% GRAVEL 0.0 0.0 0.0 0.0 0.0 3TRATE % SAND 94.8 66..2 88.8 90.0 74.4% MUD 5.2 33.8 11.2 10.0 25.6 IMATED HARD CLAM SITY (#/ftZ) 0.0 0.0 0.0 0.0 0.0 SL ND ND ND ND ND AERCIAL LN ND ND ND ND ND[ZES CS ND ND ND ND ND CH ND ND ND ND ND 3ER CLAMS COLLECTED 0.0 0.0. 0.0 0.0 0.0 RANGE (mm) ND ND ND ND ND ZE (mm) ND. ND ND ND ND)RTALITY 0 o 0 0.0 0.0 0.0 0.0 A-26 TABLE 1 SFELLIFISH INVENTORY

SUMMARY

WTATION NUMBER BB85-31 BB585-32 BB585-33 BB385-34 BB85-35 BB13 B53 B8-33 BB85-34__ BB85-35 LATITUDE N 390558.50, 39 058.00, 39058.00' 39057.50' 39057.50'0 ~iIUD 0 0 7406.55' I 74106.55' 74005.97' 74 06.55' 74 05.91'__OLLECTION DATE_ 7/25/85 7/25/85 7/30/85 7/30/85 7/30/85?1DB AND HOURS .High + 2.0 High + 3.0 Low + 3.5 Low + 4.5 Low + 4.5.25.5 ND 26.0 27.5 27.5 0 S~ *. .0"_ _ _ __ _ _ _ _C 24.5 ND 24.0 ND ND 24.7 ND 24..:0 ND ND D.O. S 6.3 ND 7.2 ND ND (ppm) 6.4 ND 7.1 .ND I ND ALINITY S 20.5 ND 20.5 ND ND t) B 20.5 ND 21.0 ND " ND PH S 8.1 ND 8.1 ND ND Bi[ 8.1 ND 8.3 ND ' ND EPTH (ft) *6' 6' 6: 51. 4r% GRAVEL 0.0 0.0 0.0 0.0 0.0 UBSTRATE % SAND 90.0 94.0 78,2 91.0 .87.0% MUD i0.0 6.0 21.8 9v0 13o0 STIMATED HARD CLAM"I 3NSITY (#/ft) 0.0 0.0 0.0 0.0 0.0 SL ND ND ND ND ND DMMERCIAL LN ND ND ND ND ND SIZES CS ND ND4 ND ND ND C- ND ND ND ND ND JMBER CLAMS COLLECTED 0.0 0.0 0.0 0.0 0.0 2ZE RANGE (mm) ND ND ND ND ND SIZE (:mm ND ND ND ND ND MORTALITY 0.0 0.0 0.0 0.0 0.0 A-27 TABLE 1 SHELLFISH INVENTORY

SUMMARY

TION NUMER* BB85-36 BB85-37 BB85-38 BB85-39 BB85-40 TD N 39057.50' 39058.50, 39058.50, .39057.00, 39 57.00'GITUDE '., 0 0 I 0 01 74 05.28' 74 05.91' 74 05.28' 74 06.55' 74.05.91'LECTION DATE 7/30/85 7/31/85 7/31/85 7/31/85 7/31/85 E AND HOUR jHigh + 0.0 lbw + 2.0 Low + 2.5 Low + 3.5 Low + 5.5 PERATU-RE AIR 27.5 25.5 26.5 27.0 27.0 0C WATER- S 24.2 25.3 ND ND 26.5 B 24..2 25.1 ND ND 26.5.0. S ND 7.2 ND ND 7.0 ppm) B 72 6o9 ND ND 6.2 INITY ND 21.0 ND ND 20.0 9prt) B 22.0 21.0 ND ND 21.0 J S ND 8.1 ND ND 8.1.B 8.1 8. ND ND 8i UH (ft) 4' 61 5' 6' 5% GRAVEL 0.0 0.0 0.0 2.0 0.0 3TRATE % SAND 52.8 86°4 94.2 95.8 84.6% MUD 47.2 13.6 5.8 2.2 15.4 IMATED HARD CLAM;ITY (#/ft') 0.0 0,0 0.0 0.0 0o0% SL ND ND I ND ND ND 4ERCIAL LN ND ND ND ND ND IZES CS ND ND ND ND ND CH ND ND ND ND ND£ER CLAMS COLLECTED 0.0 0.0 0.0 0.0 0.0 Lt RANGE. (mm) ND ND ND ND ND:ZE (mm) ND ND ND ND ND)RTALITY 0.0 0.0 0.0 0.0 0.0 A-28 TABLE;i S.qELLFISH INVE1NTORY

SUMMARY

O NUMBER BTATION NUMBER BB85-41 BB85-42 B EB85-43 BB85-44 BB85-45ýATITUDE N 39 05650' 39 056.50' 39056.50' .39056.00, 39056.00, IONGITUDE W 74007.83' 74007.19'. 74606*.551 74005.28' 74006.00'. 'OLLECTION DATE 8/5/85 8/5/85 8/5/85 8/5/85 High + 4.5 High + 5.5 Low + 0.0 Low + 0.5 j Low + 1.0)EMPERATURE AIR 23.0 27.0 27.0 26.0 26.5°C WATER S -23.3 ND ND ND ND 24.0 ND ND ND ND D.O. S 7.4 ND ND ND I ND (ppm) B 5.0 ND ND ND ND ALINITY 20.0 ND ND ND .ND (ppt) B 20.0 ND ND ND j ND pH S 8.1 ND ND ND ND B8.1- ND -ND L ND ~ ND EPTH. (ft) 61 7' 61 61 6'% GRAVEL 0 o0 0.0 0.0 0. 0 0.0 UBSTRATE % SAND 6.0 19.0 50.6 j 86.5 77.8% MUD 94.0 81.0 49.4 13.5 22.2 5TIMATED HARD CLAM ENSITY (#/f 0.0 0.0 0.0 0.0 0.0 SL ND ND ND ND ND.3MMERCIA.L LN ND ND ND ND ND7,.SIZES .Cs ND ND ND ND ND CH ND ND ND ND ND JMBER CLAMS COLLECTED 0.0 0.0 0.o0 0.0 0.0 IZE RANGE (mm) ND ND ..ND ND ND SIZE (Mm) ND ND ND ND j ND MORTALITY 0.0 0.0 0.0 0.0 0.0 A-29 TABLE 1 SIELLFISH INVENTORY

SUMMARY

TION NUMBER BB85-46 BB85-47 f BB85-48 FBB85-49 BB85-50 ITUDE N 39056.00' 39 056.00' i39 56.00' 39 50. 50' 39 50.50'3ITUDE W 74 06.55' 74 07.19' I 74 07.83' 74008.47' 74008.15'LECTION DATE 8/5/85 8/5/85 8/5/85 9/9/85 9/9/85 E AND HOU9/EANDHOURS Low + 1.5 Low + 2.0 Low + 2.5 High + 1,5 High + 2.0 PERATURE AIR 26.5 25.5 26.0 25.0 26.5 D C WATER S ND ND ND 24.5 j ND ND ND ND 24.9 ND ND ND ND ND ND.pm) B ND ND ND ND ND ENIr! S ND ND ND 27.0 ND ND ND ND 27.0 ND SN S ND ND ND 8.3 ND B ND ND ND *8.3 ND[H (ft) 61 8' 7' 8' 9'% GRAVEL 0.0 0.0 0.0 0.0 0.0;TRATE % SAND 76.0 34.2 26.6 20.2 25.8% MUD 24.0 65.8 73.4 79.8 74.2.MATED HARD CLAM i 3ITY (#/ft.D 0.0 0.0 0.0 0.14 .0.03% SL ND ND ND 7.1 0.0 4ERCIAL LN ND ND .ND 14.3 0.0 ZES CS ND ND ND 78.6 66.7 CH ND ND ND 0.0 33.3)ER CLAMS COLLECTED 0.0 0.0 0.0. 14': 6 ANE() ND ND ND 37-76 ] 71-80 lZE (nm) ND ND ND 62.1 75-.5:RTALITY 100 0.0 0.0 0.0 0.0____ ___ ___ ____ ___ ___ ___ ____ ___ __ __ ____ ___ ___ ___ ___ __ ___ ___ A-30 TABLE 1 SfIELLFISH INVENTORY

SUMMARY

TATION NUMBER BB85-51 BB85-52 BB85-53 BB85-54 BB85-55 ATITUDE N 0 0 BB55 0B55 39 50.50' 39 50.50' 39050.50' 39 50.50' 39 50.50'ONGITUDE W 74 007.83' 74 007.51' 74007.19' 74 06.87' 74 006.55'OLLECTION DATE 9/9/85 9/9/85 9/9/85 9/9/85 9/9/85 IDE AND HOURS High +:2.0 High + 2.5 High + 3.0 High +-3.5 High + 4.0 MP ERATURE AIR 28.0 29.0 29.5 28.5 28.5 (C S ND ND ND ND 2 5. ;7 WATER ____B ND ND ND ND 24.9 D.O. S ND ND ND ND ND (plpmn) B ND ND ND ND k, ND[,LINIT S ND ND ND ND 27.0 (rpt) B ND ND ND ND 27.0 pH S ND ND ND ND 8.3 ND ND ND ND 8.3 3PTH (ft) 11' 9' 8' I 9 7'% GRAVEL 0.0 0.0 K 0.0 0.0 0.0 JBSTRATE % SAND 13.4 68.0 84.2 59.6 84.8% MUD 86.6 32.0 15.8 40.4 15.2 STIMATED HARD CLAM 0.25 0.01 0.22£NSITY 0.05 0°35% SL 0.0 3.3 0.0 0.0 [ 0 .o YLMMERCIAL LN 1ý0o0 3.3 2.0 :I 91 12.2 SIZES CS 90.0 85.2 85.7 86.4 75.6 CH 10.0 8.2 12.3 4.5 12.2 JMBER CLAMS COLLECTED 10 69 49 22 43-ZE RANGE (nun) 56-80 29-79 55-81 44-77 43-80 SIZE (amm) 68.9 66.7 69.1 64.6 f 65.4 MORTALITY 16.6 25.0 18.3 8.3 0.14 IORILIT A-31 TABLE I SnELLFISH INVENTORY SlI.UlARY TION NUMBER BB85-56 BB85-57 BB85-58 BB85"59 BB85-60 ITUDE N 39055.50, 39055.50' 39 0 55.00' 39 054.50' 39055.00, GIUE 4000 0 0 GITUDE W 74°06.00' 74005.28' 74 05.28' 74 05.28' 74 006.55'LECTION DATE 9/10/85 9/10/85 9/10/85 9/10/85 9/10/85 E AND HNOURS. High + 0.0 High + 1.0 High + 1.5 High + 2.0 High + 3.0 PERATURE AIR 23.5 24.0 25.0 25.0 26.0 S 24..3 ND ND ND ND C WATER B 25.0 ND ND ND ND.0. S ND ND ND ND ND 7-_upn) B ND ND ND ND ND INITY S 20.5 ND ND ND ND)pt) B 22.5 ND ND ND ND S 8.2 ND ND ND ND B 8.1 ND { ND f ND ND IH (if) 7' 7. 6' 7'1 8'.A GRAVEL 0.0 0.0 000.0 0.0 TRATE % SAND 72.0 78.4 88.2 72.2 77.4%MD28.0 21.6 [ 11.8 27.8 .22.6 M\-ATED HARD CLAM 00000 ITY (#fA)~.0 0.0 0.0______ 0.0__0.01_ SLi% LND ND ND ND -0.0 IRAL NND ND ND ND 100 ZE sND ND ND ND 0.0* CH CH________ ND ND ND ND 0.0 ER CLAMS COLLECTED 0.0 0.0 0.0 0. 0~ 1.RANGE (mm) ND ND .~ ND ND K ZE (mm) ND ND ND ND 55.80 RTALITY 0.0 .0.0 0.0 0.0

0.0 A-32 TABLE 1 SnELLFISH INVENTORY ;TATION NýUMBER 1 885-6 K BB85-62 BB85-63 BB85-64 BB85-65 1,ATITUDE N 39054.50' 39054.50' 39054.50' 39054.001 39o54.00'0NGITUDE W 74°07.19' 74 06.55' 74j05.91' 74 06.55' 74 07.19'OLLECTION DATE 9/16/85 9/16/85 9/16/85 9/16/85 9/16/85 IDE AND HOURS Low + 1.0 Low + 1.5 Low + 2.0 Low + 3.0 Low + 3.5 iPERATURE

! AIR 20.5 19.0 ND 22.0 20.0 oc S 17.2 ND ND ND ND WATER _B 18.1 ND ND ND ND D.O0. S 8.5 ND ND ND ND (ppm) B 7.3 ND ND ND ND ALINITY S 22.5_ND ND ND N ND (ppt) _ _ -24.0 ND ND ND I ND pH S 8.2 ND ND ND ND B!8.2 ND ND ND ND EPTH (ft) 71 4. 41 41 8'% GRAVEL 0.0 0.0 62.0 0oO. 1 0.0 US TRATE % SAND 55.0 86.6 35.0 88.0 44.2% MUD 45.0 13.4 3.0 12.0 { 55.8 STIIATED HARD CLAM .ENSITY (#/ft) 0.01 0.0 0.0 0.0 -0.0% SL 0.0 ND ND ND ND OMMERCILAL LN 100 ND ND ND ND SIZES CS 0.0 ND ND ND ND CH 000 ND ND ND ND JM.BER CLAMS COLLECTED

0. 0 0.0 0.0 0.0 iZE RANGE (mm) ND ND ND j ND SIZE (.rmm) 42.0 ND ND ND ND MORTALITY 0.0 0.0 0.0 0.0 100 A-33 TABLE 1 S6ELLFISH INVENTORY SUMM11ARY TION NUMBER BB85-66 BB85-67 BB85-68 BB85-69 BB85-70 ITUDE N 39054.00' 39°53.50' 39 53.50' 39 053.50' 39 53.50'GTUDE w 0 [ 0 0 0 GITUDE W 74007.83' 74 07.83' 74 07o19' 74 06.55' 74 05.91'LECTION DATE 9/16/85 9/18/85 9/18/85 9/18/85 9/18/85 E AND HOURS Low + 4.0 High + 5.5 Low + 0.0 Low + 1.0 Low + 1.5 PERATURE AIR 22°0 19.5 20.0 23.0 23.0 CWATER ND ::.18.0 ND ND ND ND 18.6 ND ND ND.O. ND 8.3 ND ND ND?pm) B ND 7.7 { ND ND ND INITY S ND 24.0 _ _ND __ NDNL N240ND ND- ND B ND 25.0 1 ND ND ND s ND 8.2 ND ND ND B ND 8.2 ND ND *ND'H (ft) 71 71 8f 61 31% GRAVEL 0.0 0.0 0.0. 0.0 0.0 TRATE % SAND 32.0 89.6 79.6 96.2 87.8% MUD 68.0 10.4 20.4 3..8 12.2 MATED HARD CLAM ITY (#/ft_) 0.01 0.06 0.04 0.01 0.0 SL 0.0 10.0 J 0.0 0.0 NDýERCIAL LN 0.0 10.0 { 0.0 0.0 ND ZES Cs 100 80.0 I 100 100 ND CH 0.0 0.0 0.0 0.0 ND ER CLAMS COLLECTED 1 11 4 2 0.0 RANGE (nmn) 28-68 58-73 68-72 ND ZE (mm) 57.0 58.9 63.0 70.0 ND RTALITY 0.0 8.3 20.0 0.0 0.0 A-34 TABLE 1 INVENTORY TATION NU[NSt EER BB85-71 BB85-72 BB85-73 BB85-74 BB85-75 lATITUDE N 39053.501 39 53.00' 39 053.00' 39 053.00' 39 53.00'ONGITUDE W 74005.44' 7405.36' 74007.83' 74 007.19' 74 00655'2OLLECTION DATE 9/18/85 9/18/85 9/30/85 9/30/85 9/30/85'IDE AND HOURS Low + 2.5 Low + 3.0 Low + 1.0 Low + 2.0 LOw + 2.5'EMPERATURE AIR 23.0 23.0 18.0 19.0 23.0°C A ND 19o5 18.4 ND ND BND 18,0 18.8 ND N D D.O. S ND 8.7 ND D ND (ppm) B ND 8.4 ND ND ND ALI NITFY S ND 24. 0 22.0 ND ND (ppt) B ND 25.0 24.0 ND ND pH S ND 8.2 8o1 j ND ND.B ND 8.2 { 7.9 ND ND FPTH (ft) 7' 8' 8' 8' 71% GRAVEL 0.0 0.0 1.2 0 ..0 0.0 UBSTRATE % SAND 23.2 .86.2 19.2 69.0 89.0% MUD 76.8 13.8 79.6 31.0 11.0 STIMATED HARD CLAM 0.01 0.01 0.08 SNSITY 0.0 0.01 0% SL ND 0.0 0.0 0.0 0.0)MMERCIAL LN ND 0.0 0.0 0.0 40. 0 SIZES CS ND 100 100 0.0 60.0 CH ND 0.0 0o0 100 0.0 JMBER CLAMS COLLECTED 0.0 1 1 1 15 CZE RANGE (mm) ND 51-70 SIZE (:mm) ND 58.0 60.0 80.0 59°9 MORTALITY 0.0 66,7 50.0 0.0 .11.8 A-35 TABLE 1 SqELLFISH INVENTORY

SUMMARY

TION NUMBER BB85-76 BB85-77 BB85ý78 BB85-79 BB85-80 TUDE N 39 53.00' 39°52.50' 39 052.50' 39°52.50' 39052o12'ITUDE W 74005.91' 74006.551 74007.19' 74007.83' 74008.69, LECTION DATE 9/30/85 9/30/85 9/30/85 9/30/85 10/7/85 E AND HOURS Low + 3.0 Low + 4.0 Low + 4.!5 Low + 5.0 High + 3.0 PERATURE AIR 23.0 23.0 21.0 22.0 18.0 0 WES ND ND ND ND 16.6 WATER B ND ND ND ND 17.6.0. S ND ND ND ND 7.1 ptm) B ND ND ND ND 7.0 INITY S ND ND ND ND 19 ,0 pt) B ND ND ND ND 19.5 S ND ND ND ND 7.9 B ND ND ND ND 7.9 TI (ft) 8' 6' 9' 8' 4'% GRAVEL. 0.0 0.0 0o0 0o0 0.0 3TRATE % SAND 85.4 94.4 54.0 10.0 12.2% MUD 14.6 5.6 46.0 90.0 87.8[MATED HARD CLAM. 0 31TY (#ift-) 0.01 0.12 1 001 0.0 0,01% SL 0.0 0.0 0.0 ND 0.0 4ERCIAL LN 0.0 8.3 33.3 ND 0.0[ZES. CS 100 87.5 66.7 ND 0.0 CH 0.0 4.2 0.0 ND 0.0 3ER CLAMS COLLECTED 2 24. 3 0.0 .1 RANGE ( 69-74 53-78 45-65 ND [ 68-ZE (am) 71.5 .65.2 57.0 ND 68.0)RTALITY 0.0 17.2 0.0 0.0 0o0 A-36 TABLE 1 S'ELLFISH INVENTORY SUM-ARY 3TATION Nqljn3ER BB85-81 BB85-82 BB85-83 BB85-84 BB85-85 ,ATITUDE N 39052.121 39052.25-3905200 1 39 0 52.001. 39052.00'.IONGITUDE w 74°09 o. I' 74008.15 ' 74007.83' 74007.19 ] 74006o55OLLECTION DATE 10/7/85 10/7/85 10/7/85 10/7/85 10/7/85"IDE AND HOURS High + 3.5 High + 4.0 High + 4.0. High + 4.5 High + 5.C'EMPERATURE AI R 16.0 ND 16.0 15.0 16.0 0 _C WATER-- ND ND ND j ND ND 1 ND ND ND ND ND D .O ..S N DN DN ND ND ND ND ND (ppm) B N DN DN ppt 8 ND ND ND ND ND F3 ND ND ND ND ND EPTH (ft) 44 68 9'% GRAVEL 0.0 0. 0. 440 .2 UJBS T RATE % SAND 15.0 26.0 22.8 84.2 4.J% MUD .85.0 74.0 77.2 15.8. 55.8 STIMATED HARD CLAMI EENSITY (#fo____ .0 0.05 j 0.03 0.27 0.05% SL_ _ND 0.0 0.0 2.0 0.0 OMMERCIAL LN ND 40.0 0.0 17.0 11.1 SIZES CS ND 40.0 66.7 73.5 88.9 CGVND 20.0 3. 7.5 0.0 UMBER CLAMS COLLECTED 0.0 1 7 53 10 IE A ND 42-83 58-81 SIZE (:nu) ND 063.6 70.3 65.4 65.7 MORTALITY 0.0 0.0 0.0 1.9 16.7 A-37 TABLE 1 SBELLFISH INVENTORY

SUMMARY

ýTION NUMBER BB85-86 BB85-87 .BB85-88 BB85-89 B885-90'ITUDE N 39052.00' 39052.00' 39 51.50' 39051.50.' 39051.50'[GITUDE W 74 05.91' 74 05.60' 74007.75' 74007.19' 74006.55',LECTION DATE 10/7/85 10/7/85 10/8/85 10/8/85 10/8/85 ,E AND HOURS Low-+ 0.0 Low + 0.5 High.+ 1.5 High + 2.5 HighS+ 2.5 PERATURE AIR 16.5 17.0 16.0 16.5 17T.5 OC WATER ND 15.5 14.7 ND ND ND 1 5.4 j 15.3 ND ND.0. S ND 9.94 9.0 ~ .ND ND ppm) B ND 9.2 j 8.9 ND ND!I INITY S ND 21.5 21.5 ND I ND ppt) B ND 23.5 21.5 ND ND 1S ND 8.3 j 8,0 1 ND ND B ND 8.3 8.0 ND ND B ND PH (ft) 4' 51 j 5' 10' 9'% GRAVEL 0.0 0.0 0.0 0.0 0.0;TRATE % SAND 92.6 88.2 69.0 14.0 53.8% MUD 7.4 11.8 31.0 86.0 46.2[MATED HARD CLAM 0.04 0.01 1 0.18 0.02 0°49 3ITY (#/ft_')% SL 0.0 0.0 11.1 0.0 0.0 4ERCIAL LN 33.3 0.0 33o3 0.0 28.6[ZES CS 66.7 100 50.0 100 71.4 CH 000 0.0 5.6 0.0 0.0 3ER CLAMS COLLECTED 6 2 18 2 49 RANGE (mm) 48-72 59-67 32-77 65-73 39-75:ZE (mm) 61.0 63.0 54.3 69.0 61.4)RTALITY 14.3 50,0 0.0 0.0 2.0 A-38 TABLE 1 StIELLFISH INVENTORY SUl-MARY, 3TATION NUMBER BB85-91 BB85-92 BB85-93 BB85-94 BB85-95.1ATITUDE N 39 51.50' 39o51.00' 39 51.00' 39 51.00' 39 51.00'405 910 0 0 0 LONGITUDE W 74°05.91, 74 06.55' 74 07.19' 74 07.83' 74 08.37OLLECTION DATE 10/8/85 10/8/85 10/8/85 10/8/85 10/8/85'IDE AND HOURS High + 3.5 High + 4.5 High + 5.0 j High + 5.0 Low + 0.0'EMPERATURE AIR 19.0 ND 19.0 19.0 19.0 0C S 15.2 ND ND ND ND C ~~WATER__ _ __ _ _ _ _B 16.1 ND ND ND ND D.O. S 10.2 ND ND. ND ND (ppm) B 9.8 ND ND ND ND ALINITY S 20.5 ND ND ND ND (ppt) B 20.5 ND ND ND _ _ND pH .8.0 ND ND ND ND B!8.0 ND ND' ND ND EPTH (ft) 5' 8' 10' 10' 1 7'% GRAVEL 0.0 0o.0 0.0 0.0 0.0 JBSTRATE % SAND 92.4 87°0 49.2 49.6 33.0% .MUD 7.6 13.0 50.8 50.4 67.0 3TIMATED HARD CLAM'NSITY (#/ft"- 0.05 0.19 0.15 0.13 0005 SL 0.0 0.0 0. 0 0.0 0.0)MMERCIAL LN 0.0 5.3 10.7 7.7 28.6 SIZES CS 100 84.2 82.2 76.9 71.4 CH 000 10.5 7.1 15.4 0.0 IMBER CLAMS COLLECTED 7 19 29 13 .7:ZE RANGE (mm) 59-74 54-78 38-81 54-81 41-72 SIZE (mmm) 65.7 70.2. 66.8 68.5 62.0 MORTALITY 12.5 5.0 3.3 7.1 12.5 A-'39 TABLE 1 SHELLFISH INVENTORY SU .MI,1:'LaRY.TION NUMBER BB85-96 BB85-97 BB85-98 BB85-99 { BB85-100 ITUDE N 39050.26' 39050.251 39o50.25' 39050i 25' 39050°251 GITUDE W 74 08.67' 74 08.47' 74 07.83' 74.07.19.1 74 06.55'LECTI ON DATE 10/9/85 10/9/85 .10/9/85 j 0/9/85* 10/9/85.E AND HOURS High + 0.0 High + 1.0 High + 1.5 _ High + 2.0 High + 2.5 PERATURE AIR 22.0 19.0 20o0 20.0 21.0 SATE162 ND ND ND ND DC WATER-16.8 ND ND ND .*ND.0. S 9.0 ND ND NDND.B 8.3 ND ND " ND ND WI N .S 23.5 ND ND ND ND Dpt) B 23.5 ND ND ND ND S 8.3 ND j ND ND ND B 8.3 ND ND ND ND?H (ft). 5' 7'. ] 8' 9' 8'% GRAVEL 0.2 * .* * *'TRATE % SAND 44.8 * * ..% MUD 55.0 * * * *MATED HARD CLAM 0.03 0.16 0.05 0.39 0.25 ,ITY (#~/ft 2) ________ _______ _______ _______ _ _ _ _ _ _ _% SL 0.0 3.3 0.0 3.7 0.0 IERCIAL LN 0.0 20o0 0 o 1.2 2.0*ZES CS 100 73.4 62°5 82.7 78.0 CH 0.0 3.3 37.5 12.4 20.0 ER CLAMS COLLECTED 3 32 8 66 49 RANGE (mm) 65-72 36-78 64-81 32-82 52-83 ZE (mm) 67.7 63.0 72.0 68.0 71.0 RTALITY 0.0 8.6 11.1 10.8 i8.3 A-40 TABLE 1 SýELLFISH INVENTORY 3TATION NUMBER BB85-101 BB85-102 BB85-103 BB85-104 BB85-105 LATITUDE N 39050o25' 39 50.50' 39'50.00W 39 50.00' 39 050o00'LONGITUDE W 74005.911 74o06.231 74009.11, 74008.79, 74008.15OLLECTION DATE. 10/9/85 10/9/85 10/16/85 10/16/85 10/18/85?IDE A-ND HOURS High + 3.5 High + 5.0 High + 6.0 Low + 1.0 Low + 5.5'EMPERATURE AIR 21.0 23.5 21.0 17o0 17.5 0c S 17.0 ND 18.8 ND ND WATER ---16.5 ND 18.8 ND ND D.O. S 9.7 ND 7.2 ND ND (ppm) B 9.5 ND 6.4 ND ND ALINITY " 24.5 ND 26.5 ND ND (ppt) B 25.0 ND 26.5 ND ND pH S *8.3 ND 8.3 ND ND B 8o3 ND 8.3 j ND ND.CPTH (ft) 5' 6' 7' 9' 101% ____VEL * * * *GV UBSTRATE % SAND * * * * *% MUD * * * *STIMATED HARD CLAM 0 ENSITY (4/ft__-) 0.12 0.17 __0.24 0.07 0.05%SSL .0.0 0.0 4.4 0.0 0.0 OMI1ERCIAL LN 36,8 9.1 17.4 0.0 0o0 SIZES CS 63,2 75.8 65.2 44.4 62.5 CH 0.0 15.1 13.0 55.6 37.5 UMBER CLAMS COLLECTED 18 34 24 7 8 EZE RANGE (mm) 49-70 50-82 34-82 69-88 ] 70-87 SIZE (:mm) 54.2 68.9 64.9 77.1 75.8 MORTALITY 21.7 8.1 4.0 0.0 20.0 A-41 TABLE 1 SRELLFISH INVENTORY

SUMMARY

TION NUMBER BB85-106 BB85-107 BB85-108 BB85-109 BB85-110 ITUDE N 39 050.00' 39 50.00' 39 0 50.00' 39049.751 SITUDE W 74 07.51' 74 006.87' 74 06.23'. 74 05.91' 74 06.00'LECTION DATE 10/18/85 10/18/85 10/18/85 10/18/85 10/18/85 E AND HOURS High + 6.0 Low + 0.5 Low + 1.0 Low + 2.5 Low + 2.0 PERATURE AI R 16.5 17.0 17.0 17.5 19.0 C W ND ND ND 16.0 ND WATER ND ND ND 1 0 N B ND ND ND 16N0 ND.0. S. ND ND ND ND ND IPM) B ND ND ND 9o9.3 ND ENITY S ND ND ND ND ND)pt) B ND ND ND 25.0 ND LS ND ND ND ND ND ND ND NO 8.5 ND'H (ft) 50, 61 61 41 51%* *G*V*;TRATE % SAND%* * * *MATED HARD CLAM MTE HARD C 0o12 0.19 0 15 0.17 0.05-ITY (/t% SL 0.0 0.0 0.0 5.9 0.0 IERCIAL LN 25.0 5.4 6.5 41.2 23.5 ZES CS 66.7 70.3 87.1 52.9 j 76.5 CH 8.3 24.3 .6.4 0.0 0.0 ER CLAIMS COLLECTED 12 37 30 17 17 RANGE (mm) 40-80 38-85 49-81 36-74 46-73-ZE (:nu) 64.8 71.2 66.6 51.4 60.0 RTALITY 0.0 15.9 t 9.1 26.1 22.7 A-42 TABLE 1 StiELLFISH INVENTORY S[],tU4ARYN UMB3E R 3_________NUMBER_ BB85-111 BB85-112 BB85-113 BB85-114 BB85-115 X)NGITUDE N 0 0 0 0 0-A-TDE N39°49ý75'. 39049.75' 39°49o.75' 39°49.75' 39049.7.5' __ONGITUDE W 74 06.55' 74 07.19' 74 09.43' 74 09.11, 74 008.47'.OLLECTION DATE 10/18/85 10/18/85 10/30/85 10/30/85 10/30/85 Low + 2.5 Low + 3.0 Low + 0.5 Low+1.5 Low + 2.0 8.MPE5ATURE AIR .5 19.0 14.0 15.5 17.0 oC WATER ND ND 11.0 ND ND B ND ND 11.2 ND ND D.O. S ND ND 9.2 ND ND (ppm) B ND ND 9.1 ND ND ALINITY S ND ND 27.0 ND ND (ppt) *B ND ND 27.0 ND ND pH S ND ND

8°5 ND ND B ND ND 8.5 ND ND EPTH (ft) 5' 9' 6' 8' 10'% GRAVEL " * * * *UBSTRATE % SAND , , * * *% MUD * , * * *3TIMATED HARD CLAM ENSITY (#/ftZ) 0.14 0.27 0.29 0.33 0.05% SL 0.0 0.0 3.6 3 .1 0.0 9MMERCIAL LN 14.3 2.7 7.1 0.0 0.0 SIZES CS 85.7 78.4 78.6 78.1 62.5 CH 0.0 18.9 10.7 18.8 37.5 JMBER CLAMS COLLECTED 14 27 29 33 9 EZE RANGE (mm) 47-71 53-79 30-79 31-84 64-82 SIZE (mrm) 62.4 70.8 65.9 { 69.4 7503 MORTALITY 0.0 20.6 0.0 2.9 43.7 A-43 TABLE 1 S;IELLFISH-1 INVENTORY

SUMMARY

TTION NUM[BER .BB85-116 BB85-117 j BB85-118 BB85-119 BB85-120_ITUDE _39049.75' 39 49.50' 3 9° 49.50' 39 49.50' 39 49.50.'IGITUDE_ W 74 07.83' 74 06.73' 74 06.87' 74 07.51' 74 08.15'SECTION T10/30/85 10/30/85 10/30/85 10/30/85 10/30/85)B AND HouRs_E Low + 3.0 Low + 4.0 Low + 4.5 Low + 5.0 Low + 5.5ýPERATURE AIR 17.5 18.0 { 19.0 16.0 16.0 C WATER ND 10.0 j ND ND ND B ND 10.2 j ND ND ND ND 10.4 ND ND ND ppm) B ND 10.1 ND ND ND INITY S ND 24.0 ND ND ND ppt) B ND 24.0 ND ND .ND ND 8. ND ND I ND ND 8.5 ND ND ND_ _ ft)_ 11'. 5' 6' 10' i1'% GRAVEL. ,, {

1 STRATE % SAND *
j * *% MUD * * * * *EIMATED HARD CLAM SITY (#/ft') 0.06 0.06 0.23 0.08 0.02% SL 0.0 0.0 0.0 0.0 0.0 vIERCIAL LN 8.3 25.0 7.0 0.0 0.0 EZES. CS 83.4 75.0 74.4 80.0 93.3 CH 8.3 0.0 18.6 20.0 6.7 3ER CLAMS COLLECTED.

12 12 46 15 15 RANGE (mm) 53-79 45-70 49-80 58-81 6*5-81[ZE (mm) 70.6 .59.7 69.1 69.5 71.2 MITALITY 0.0 25.0 22.0 16.7 31.8 A-44 TABLE 1 SfjELLFISH INVENTORY

TATIOU NUMBER BB85-121 BB85-122 BB85-123 BB85-124 BB85-125!,ATITUDE N 39o49.50' 39049.509 39049.250 39049.25'[ONGITUDE W 7.4 08.79' 74 009.75' 74009.43' 74009.43' 74009.17'OLLECTION DATE 10/30/85 11/6/85 11/6/85 11/6/85 11/6/85'IDE AND HOURS High + 0.0 High + 4.5 High + 5.0 High + 5.5 Low + 0o.0'EMPERATURE AIR 19.0 13.5 14.0. 14.0 15.0 T _ ND 12.1 ND ND ND ND .* 12.3 ND ND ND D.O. S. ND 8.9 ND ND ND (ppm) _ B _ ND 8.6 ND ND I ND;ALINITYf S ND 26.0 ND ND ND (ppt) B ND 28.0 ND ND _ _ND p-H S ND 7.6 ND. ND f ND B ND 7.6 ND ND ND.I.)EPTH (ft) 10' 71 9' 6' 8'GRAVEL * * * * *UBSTPATE % SAND * * * * *% MUD * * * * *STIMATED HARD CLAM 0.08 0.11 0.14 0.35 0.18-ENSITY (4/ft") 0% SL 0.0 0.0 0.0 .73.3 9.8: OMMERCIAL LN 00 0 0.0 .7.7 16.2 20.7 SIZES CS 60.0 81.8 76.9 61.8 41.5 CH 40.0 18.2 15.4 14.7 28.0 UMBER CLAMS COLLECTED 16 11 14 70 F 36 II I 29-92 IZE RANGE (mm) 65-82 58-84 44-82 30-84 29-92 SIZE (:hmm) 75.5 68.7 74.8 63.2 64.7 MORTALITY 5.9 0.0 12.5 I 1.4 5.3 A-45 TABLE 1 StELLFISH INVENTORY S UMMARY TION NUMBER BB85-126 B885-127 BB85-128 BB85-129 J BB85-130 ITUDE N 39049.25' 390 49.25 39049.25' 39049.25' 39049"25}IITUDE W 74008.47' 74.07.83' 74007.19' 74006.55!

J 74005.91'LECTION DATE 11/6/85 11/7/85 11/7/85 11/7/85 11/7/85 E AND HOURS Low + 0.5 High + 3.5 High ++/-4.5 High + 5.0 High + 5°5 PERATUPE AIR 14.0 14.5 13.5 13.0 14.5 WC S ND 11.5 ND ND 11.8 WATER B ND 11.8 ND ND 11.5 O ND 8.9 ND ND ND Bpvr) ND 8.7 ND ND 9.1 INITY S ND 26.0 ND. ND ND t) B ND 28.0 ND ND 27.0 S ND 7.5 ND ND ND B ND 7.7 ND ND 7.3?H (ft) 12' 10' 6' 5' 5'% GRAVEL .* * * *;TRATE % SAND , * * * *% MUD , * * * *MATED HARD CLAM;ITY (#/ft 0.04 0.12 0.07 0.03 0.0% SL 0.0 0.0 0.0 0.0 ND IERCIAL LN 0.0 0.0 0.0 0.0 ND*ZES CS 28.6 10.0 63.6 10.0 ND CH 71.4 0.0 36.4 0.0 ND ER CIAMS COLLECTED 7 12 11 3 0.0 RANGE (rm) 67-84 59-76 62-89 65-73 ND ZE (mmm) 78,9 70.8 73.2 68.0 ND-RTALITY 0.0 20.0 42.1 25.0 0.0 A-46 TABLE 1 SBELLFISH INVENTORY

SUMMARY

STATION NUMBER BB8.5-131 BB85-132 BB85-133 BB85-134 BB85-135 LATITUDE N 3 .90 30 00 4 0_____ 94.2 U3949.001 39 49.00' 39°49.00' 39°49.621 39049.621 LONGITUDE W 74006.23' 74006.87, 74 07.51' 74 10.15, 74 10.39' DATE 11/7/85 11/7/85 11/7/85 11/13/85 11/13/85 ID AND HOURS Low + 05 Low + 1.0 Low + 4.0 Low + 4.5 PEMPERATURE AIR 16.0 16.0 15.0 { 16.5 18.0 0"C S ND ND ND 12.7 ND B ND ND ND 12.5 ND ND ND ND ND ND (ppm) B ND ND ND 8.3 I ND;ALINITY S ND ND ND ND -ND (ppt) B ND ND ND 27.0 ND pH S ND ND ND ND ND B ND ND ND 7.8 ND)EPTH (ft) 51 51 71 41 4'% GRAVEL[MS TRATE % SAND , * *

1% MUD * , * * , STIMATED HARD CLAM ,ENSITY (#/ft ) 0.09 0.10 0.19 0.01 0.05% SL 0.0 0.0 0.0 0.0 20.0'OMMERCIAL LN 44.4 0.0 0.0 0.0 40.0 SIZES CS 55.6 100 56.7 100 20.0 Ci 0.0 0.0 43.3 0.0 20.0 UMBER CLAMS COLLECTED 9 10 32 1 5 IZE RANGE (mm) 51-72 62-75 61-85 [
34-77 SIZE (:mm) I)59.4 69.5 75.6 60.0 54.8 MORTALITY 25.0 23.1 17.9 0.0 0.0 A-4 7 TABLE 1 SfIELLPISH INVENTORY SUMM1ARY TION NUMBER -139 IUNBB85-136 BB85-137 BB85-138 BB85-139 BB85-140_TUDE N 39049.56' 39049.41' j 39o49.62' 39049.66' 39049-00, SITUDE W 740 10.82' 74 011.03 74010.86' 74 11.03' 74009.75'LECTION DATE 11/13/85 11/13/85 .11/13/85 11/13/85 11/14/85 E AND HOURS Low-.+5.0 Low:A+ 6.0 High.+:0.5 High + 1.0 Low + 3.0?ERATURE AIR 19.5 20.5 21.0 21.0 14.0 S ND ND ND 14.0 13. 0 WATER -- .__ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ._ _ _ _ _ _ _ _ _ _ _ _ _ _W ND ND ND 12 .9 13.2.0. S. ND ND ND ND 9.4 prn) B ND ND ND 8.6 9o2 INITY S ND ND ND ND 26.0?Pt) B ND ND 24.0 26.0 S ND ND, ND ND 7 .9 B ND ND ND 7.7 7.8.1H -( f t ) 7 1 5 11 6 ' 4 ' 7 '% GRAVEL , , , * *TRATE % SAND , , * * *% MUD,,,,*MATED HARD CLAM0 ITY /ft01 0.0 0.0 0.0 0.51 SL 0.0 ND ND ND 2.0 ERCIAL LN 0.0 ND ND ND 3.9 ZES CS 100 ND ND ND 68.6 CH 0.0 ND ND ND 25.5 ER CLAMS COLLECTED 1 0!o0 0.0 0.0 51 RANGE (mm) ND ND ND 32-85 ZE (mm) 60.0 ND N... ND 68,9 RTALITY 0.0 0.0 0.0 0.0 5.6 A-48 TABLE 1 SIELLFISH INVENTORY SUMU-ARY TATION NUMBER BB85-141 BB85-142 BB85-143 BB85-144 BB85-145 TITUDE N 39 49.25' 39 49.00' 39 49.00' .39 48.75' .39 48.75',ONGITUDE W 74009.75' 74008.79, 74 008.15' 74010.07' 740 0 9.75'OLLECTION DATE 11/14/85 11/14/85 11/14/85 11/20/85 11/20/85'IDE AND H1OURS 1 0_DEAN _OURS Low + 4.0 Low + 4.5 Low + 5.0 High + 4.0 High + 5.C" :MPEP-ATURE AIR 14.5 15.5 15.0 20.0 21.0 oC WATER S ND ND 13.3 16.2 ND 8 ND ND .13.3 12.7 ND..ND ND 9.5 9.1 ND (pp M) .1 ND ND 7.1 8.9 ND ALI NITY ND ND 26.0 25.0 ND (ppt) B ND ND 30.0 26.0 ND I -H _ ND ND ND ND__ B ND ND 7.8 ND I ND EPTH (ft) 10' 12' 10' 7' 8'% GRAVEL , , *JBSTRATE % SAND * * , , { ,% MUD * , * *FTIMATED HARD CLAM 010."NSITY 0,08 0.04 0.12 0.38% SL 12.5 0.0 0.0 5.1 0.0 DMMEERCIAL LN 0.0 0.0 0.0 25.7 0.0 SIZES Cs 25.0 0.0 87.0 69.2 55.6 CH 62.5 100 13.0 0.0 44.4 JMBER CLAMS COLLECTED 8 7 24 75 10 IZE RANGE (mm) 36-82 78-88 63-83 31-75 69-85 SIZE (mm) 70.9 80.7 72.0 59.5 75.3 MORTALITY 33.3 0.0 4.0 8.5 23.1 A-49 TABLE 1 SELLF!SN INVENTORY SUMuMARY;TATION NUMBER BB85-146 BB85-147 BB85-148 BB85-149 BB85-150 ,ATITUDE N 39048.751 39048.75' 39o48.75' 39 48.75' 39 48.75'I 0 0" ,ONGITUDE W 74°09.11' 74008.47, 74 07,83, 74'07.19' 74 006.55':OLLECTION DATE 11/25/85 11/25/85 11/25/85 11/25/85 11/25/85 1IDE AND HOURS High + 0.0 High + .1.0 High + 1.5 High + 2.0 High + 3.C EMPERATURE AIR 7.0 .7.5 8.0 9.0 8.0.o C S 9.0 ND ND ND ND WT10.8 ND ND ND .ND D.O. S 9.5 ND ND ND NO (pym) B 9.2 ND ND ND ND ALINI TY S 26.0 ND ND ND ND (ppt) B 28.0 ND ND ND O. ND pH S 7.5 ND ND ND ND 7.7 ND ND ND ND EPTH (ft) 1 9' 16'5 12________

71 6' 1 5 1% GRAVEL * * * *CE S TPSTRATE % SAND * * * * *%MUD * * * * *:TIMATED HARD CLAM 0NSITY (0#/ft 2) 0.03* 0'54 0.18 0.27 0.29% SL 0.0 0.0 0.0 0.0 0.0 D1-MERCIAL LN 0.0 0,9 0.0 7.1 } 28.6 SIZES CS 33.3 84,0 37.1 78.6 71.4 CH 66.7 15.1 62.9 14.3 0.0 JMBER CLAMS COLLECTED 3 .107 36 27 T 29[ZE RANGE (mm) 75-81 55-85 65-90 56-88 52-72 SIZE (:mm) 77.7 70.2 78.2 69.4 62.5 MORTALITY 20.6 6.5 40.0 16.4 29.4 40.0 16,4 29,4 20,6 6,5 A-.50 TABLE 1 SlELLFISH INVENTORY

SUMMARY

TION NUMBER BB85-151 ITUDE N 3904B.751 GITUDE W 74006.00'LECTION DATE 11/25/85 E AND HOURS High + 3.5 PE.RATURE AIR 7.5 WATER B .7.4.O. S 10.4?prn) B 10.3 ENITT S 22.0 Dpt) B 22.0 s 7.7 B 7.8['H (ft) 5'% GRAVEL *;TRATE % SAND *% MUD *ýMATED HARD CLAM; I T Y ( 0ft 0 ___2 0% SL 0.0 IERCIAL LN 10.0:ZES CS 90.0 CH 0.0 ,ER CLAMS COLLECTED 20 RANGE (mm) 53-74.ZE (mmnt) 63.6 ,RTALITY 16.7 A-51 TABLE 1 INVENTORY SUMJARY STATION NUMZBER BB86-152 BB86-153 BB86-154 BB86-155 f BB86-156 LATITUDE N 39 48.60' 39048.10' 39§48.65' 39048.58' 39 48.60'LONGITUDE W 74o11.99' 74°i1.65' 74°.11.30' 74010.95' 74010.59'COLLECTION DATE 4/28/86 4/28/86 4/28/86 4/28/86 4/28/86 rIDE AND HOURS Low + 1.0 Low + 1.5 Low + 2.0 Low + 2.5 Low + 3.0 rEMPPERATURE AIR 22.0 21.0 20.5 21.0 19.5 oC S 12.3 ND ND ND ND WATER B 10.7 ND ND ND ND D.O. S 8o7 ND ND ND ND (jipr) B 8.7 ND ND ND ND;ALINITY S 16.0 ND ND ND ND (ppt) B 22.0 ND ND ND ND pH S 7.5 ND ND ND ND B 7.8 ND ND ND ND)EPTH (ft) 10' 10' 7' 71 81% GRAVEL * * * * *;UBSTRATE % SAND * * * *% MUD , , * * *,STIMATED HARD CLAM:ENSITY (#/ft-) 0.17 0.11 0.0 0.0 0.03% SL 0.0 4.8 ND ND 0.0)OMMERCIAL LN 48.5 52.4 ND ND 3303 SIZES CS 51.5 33.3 D ND 66.7 CH 0.0 9.5 ND ND 0.0 VJMBER CLAM4S COLLECTED 34 21 0j0 0.0 IZE RANGE (nun) 44-72 32-83 ND ND 42-67 SIZE (:mm) 57.8. 58.2 ND ND 58.0 MORTALITY 2.9 4.5 100 0.0 0.0 A-52 TABLE 1 SýIELLFISH INVENTORY SUMJAARY ,TION NUMBER ._____________BB_386-157 BB86-158 BB86-159 JBB86-160 BB86-161'ITUDE N 39048.65. 39048.50' 39°48.50' 39°48.50' 3.9S48.50' CIUE W0 0 0 0 0 GITUDE W 74 10.35' 74 10.07' 74 09.43' 74 08.79' 74 08.15'LECTION DATE 4/28/86./. 4/28/86 4/28/86 6 6 E AND HOURS Low + 3.0 Low + 4.0 Low + 4.5 Low + 5.5 High + 0.0 AIR 20.0 19.0 19.5 22.0 21.5 0 C ND 13.3 ND ND ND B ND ND ND ND ND.0. S " ND 2.958 ND ND ND ppm) B ND ND I ND ND ND INITY S ND 20 ND ND ND NtD ND ND ND ND HSND 8.+0 { ND j ND ND___ _ _ND ND I. ND ND ND 5H (ft) 6' 51 i0' 8' 5'% GPRVEL * * , , , , 3TRATE % SAND ] , , * *MUD , * * * *IMATED HARD CLAM 3ITY (#/ft ) 0.0 0.19 0.08 0.29 0.07% SL ND 2.6 0.0 0.0 0.0 4ERCIAL LN ND 5.3 0.0 0.0 0.0 IZES CS ND 65.8 .63.6 28.1 53.8 C .H ND 26.3 36.4 71.9 46.2ýER CLAMS COLLECTED ool 38 12 57 13 RANGE (mm) ND 34-84 66-80 66-96 63-84:ZE mm) ND 69.2 73.3 79.1 74.8)RTALITY 0.0 0.0 33.3 26.0 0.0 A-53 TABLE 1 S PELLF IS H INVENTORY

SUMMARY

TATION NUMBE-2R BB86-162 BB86-163 BB86-164 BB86-165 BB86-166 ,ATITUDE N 390 48.50' 39 48.25' 39 48.25' 39 48.25' 39 48.25',LLECTION DAT 0 0 1 0_______ ______0 ,ONGITUDE W 74O07.51' 74 10..39- 74o10.07' 74o09.75' 74 09.11OLLECTION DATE 4/28/86 4/30/86 4/30/86 4/30/86 *4/30/86'IDE AND HOURS High + 0.5 High + 5.0 High + 5.5 Low + 0.0 Low + 0.5'EMPERATURE AIR 23.5 20.0 17.0 16.0 17.0°C WATER 14.6 13.0 ND ND ND 10o0 13.0 ND ND ND 0.0. 11.3 8,6 ND ND ND 10.7 8.6 ND ND ND ALI2NITY S 2.2.0 23.0 ND ND ND (ppt) B 24.0 23.0 ND ND ND pH S 8.2 8.1 ND ND ND B , 8,2 8.1 ND ND ND EPTH (ft-) 8' 6' 78 10' 8'% GRAVEL , , * , *UBSTRATE % SAND * , , * *%MUD * * -, *STIMATED HARD CLAM I ENSITY (#/ftI) 0.36 0.35 0.45 0.21 0.47 SL 0.0 .2.9 0.0 0.0 0.0 OMMERCIAL LN 0.0 4.3 9.6 0.0 0.0 SIZES CS 61.0 77.1 77.4 75.6 39.6 CH 39.0 15.7 13.0 24.4 60.4 UMBER CLAMS COLLECTED 72 69 90 41 93 IZE RANGE (mm) 60-89 31-83 40-82 63-84 68-92 SIZE (mm) 74.3 68.1 67.5 73.3 78.2 MORTALITY 8.9 6.8 10.9 22.6 6.1 A-54 TABLE 1 SrELLFISH I NVENJTORY SUM-MARY TION NUMBER BB86-.167 j BB86-168 BB86-169 BB86-170 BB86-171 ITUDE N 39048.25' 39°0448.00' 39 0 48.00 8.00' 39 48.00'=ITUDE W 74o08.47' 74009.43 740010.0110 740i0.39' 74 10.71'LECTION DATE 4/30/86 4/30/86 4/10/86 4/30/86 4/30/86 EANDHOURS Low + 1.0 Low + 2.0 Low + 3.0 Low + 3.5 Low + 4.0 EPAT U-PE AIR 18.0 18.0 F 16.0 16.5 17.0 NC S ND ND ND ND 15.3 WATER ND ND ND ND 15.0.0. S ND ND ND ND 9.8 NDB NND ND 9.8 NND s ND ND ND.IZNt)B ND ND ND ND 23.5-3 ~S ND ND ND ND 8.3 B ND ND ND ND 8!2 r[ (ft) 5' 9'. 10' 10' % GRAVEL * , , , , 3TRATE % SAND * * * , *% MUD -.*.. "*: -.*IMATED HARD CLAM0 3ITY 0.17 0.36 0.11 0.08 0.23% SL 0.0 0.0 0.0 0.0 0.0 IERCIAL LN 0.0 0.0 0.0 14.3 8.9 IZES Cs 32.3 45.6 81.0 78.6 86.7 CH 67.7 54.4 19.0 7.1 4.4 3ER CLAMS COLLECTED 33 72 21 15- 45 RANGE (mm) 59-90 57-95 67-80 50-78 38-82 EZE (mm) 78.5 77.4 72.8 65.1 66.1)RTALITY 8.3 12.2 27.6 28.6 0.0 A-55 TABLE 1 SlELLFISH INVENTORY

SUMMARY

TATION NUMBER BB86-172 BB86-173 BB86-174 B386-175 BB86-176 ATITUDE N 3904775' 39°47.75'

39047.75 39°47.75' 39047.50'ýONGITUDE W 74o10.71' 74010.39' 74o 0 9.75' 74009.11' 74010.07'ýOLLECTION DATE 5/1/86 5/1/86 5/1/86 15//86 5/1/86'IIDE AND HOURS Low + 3.0 High + 4.0 High + 4.5 High +. .5.0 High + 5.5'EMPERATURE AIR 18o0 16.5 16.5 17.0 17.0 0c S 14.3 ND ND ND ND C ~~WATER -_____________________

B 14.3 ND ND ND ND D.O. S 8.7 ND ND ND ND (ppm) B 8.4 ND ND ND ND ALINIT- S 22.0 ND ND ND ND (ppt) B 22.0 ND ND ND ND pH S 8.0 ND ND ND ND B 7.9 ND ND ND ND:';PTH (f t) 71 I0, 91 5 q 91% GPkVEL * , * * , JBSTRATE % SAND * * * , ,% MUD * * , * *ITIMATED HARD CLAM 1NSITY (#/ft 7) 0.39 0.35 0.14 0.01 0.34% SL 0..9 2.9 0.0 0.0 0.0)MMERCIAL LN 10.1 23- 22 0.0 100 0.0 SIZES CS 78.9 68.1 63.0 0.0 .90.0 CH 10.1 5.8 37.0 0.0 10.0]MBER CLAMS COLLECTED 77 70 I 27 1 70:ZE RANGE (mm) 34-83 36-80 65-97 59-86 SIZE (,mm) 79.6 62.0 76.6 46.0 71.1 MORTALITY 11.5 9.1 12.9 66.7 25 o5 A-56 TABLE 1 SHELLFISH INVENTORY SUMMIARY TION NUMBER .BB86-177 BB86-178 BB86-179 BB86-180 BB86-181 ITUDE N 39°47.50' 39°47.50' 39047.411 39048.50' 39°48.50'3ITUDE W 74009.43' 74i0.711 74 010.95 74 006.87' 74Q06.23'LECTION DATE 5/1/86 5/1/86 5/1/86 5/6/86 5/6/86 E AND HOURS Low + 0.0 Low + 0.5 Low + 1.0 High + 0.5 High + 0.5 PERATURE AIR 17.0 20.0 20.0 21.0 21.0 WAE S ND ND ND 13.6 ND WATER B ND ND ND 13.6 ND.. S ND ND 8.6 8.3 ND DQon) B ND ND ND ND ND[ NIT TL S ND ND .22.0 22.0 ND..pt) ND ND ND ND ND S ND ND. 8.1 8.0 ND B ND ND ND ND ND'H (ft) 71' 7' 4' .41 4'% GRAVEL * * * *TRATE % SAND * * * * *% MUD * * * * *MATED HARD CLAM 0.32 0.57 0.16 0.16 0.03 ,ITY (#/ft )% SL 0.0 2.7 0-0 0.0 0;0ýERCIAL LN 0.0 10.6 12.5 26.7 0.0 ZES CS 62.3 79.6 87.5 73.3 100 CH 37.7 7.1 0.0 0.0 0.0 ER CLAMS COLLECTED 63 103 16 16 3 RANGE (mm) 60-91 32-81 48-75 52-66 29-71 ZE (ram) 74.9 64.9 65.6 59.3 56.3.RTALITY 7.4 7.4 11.1 0.0 25.0 A-57 TABLE 1 SnELLFISH INVENTORY SUM'M,%ARY TATION NUMBER BB86-182 BB86-183 BB86-184 BB86-185 BB86-186 ,ATITUDE N 39047.25' 39047.25' 39 47.25' 39 47.25' 39 47.00'ONGITUDE W 740 0 9.75' 7410. 39' 74010.71' 74011.03' 74 11.03OLLECTION DATE 5/6/86 5/6/86 5/6/86 5/6/86 5/6/86 IDE AND HOURS High + 2.5. High + 3.0 High + 3.5 High + 4.0 High + 4..EMPERATURE AIR 26.0 28.5 30;0 j 31.5 32.0 0c S ND ND ND ND 15 .3 WATER B ND ND ND ND 14.2 D.0. S ND ND ND ND 8.5 (ppm) B ND ND ND ND 8.1 ALINITY S ND ND ND ND 24.0 (ppt) B ND ND ND ND 25.0 pH S ND ND ND ND 8.0 B ND ND ND ND 8.0 EPTH (ft) 9' 10' 8' 5' 6'% GRAVEL , , , , *UBSTRATE % SAND ., , , j *% MUD * * * *<TIMATED HARD CLAM-NSITY (#/ft') 0.36 0.26 0.44 0.0 0.56% SL 0.0 0.0 9.3 ND 2.7 DMMERCIAL LN 0.0 3.8 27.9 ND 8.9 SIZES CS 90.0 75.5 61.6 ND 80.4 CH 10.0 20.7 1.2 ND 9.0 JMBER CLAMS COLLECTED 36 51 87 0.0 111 EZE RANGE (mm) 60-83 51-84 27-81 ND 23-84 SIZE (amm) 70.0 70.4 58.9 ND 65.5 MORTALITY 30.8 15.0 7.4 100 9.8 A-58 TABLE 1 SFELLFISH INvUENTORY SUMM4ARY TION NUMBER BB86-187 .BB86-188 BB86-189 BB86-190 BB86-191 ITUDE N 39°47.00' 39047.00' 39°47.00' 39046.75' 39 46.75'GITUDE W 74°10.71' 74o10.07' 74°09.431 74°09.11' 740 0 9.751 LECTION DATE 5/8/86. 5/8/86 5/8/86 5/8/86 5/8/86 E AND HOURS Low + 4.0 Low + 5.0 Low.+ 5.5 High + 0.5 High + 1.0 PERATURE AIR 18.0 18.5 19.0 19.0 18.5 CS 15.7 ND ND ND ND C WATER B 15.7 ND ND ND ND.0. S 8.1 ND ND ND NDB 7.8 ND ND ND ND INITY S 24.0 ND DN. ND ND Dpt) B 24.0 ND ND ND ND S 7.9 ND ND ND ND B 8.0 ND ND ND ND PH (ft) 9' 9 9- 9' 5'9% GRAVEL * * * * *3TRATE % SAND * * * * *% MUD * * * * *-.MATED HARD CLAM/ITY 0.42 0.13 0.35 0.29 0.37% SL 6.1 0.0 0.0 0.0 0.0 IERCTAL LN 15.9 0.0 4.5 3.4 2.6[ZES CS 72.0 82.1 89.4 69.0 79.0 CH 6.0 17.9 6.1 27.6 18.4 3ER CLAMS COLLECTED 84 26 L 69 29 56 IRANGE (nun) 28-87 59-88 53-79 51-89 55-82:ZE (:mm) 62.1 70.5 68.7 72.3 70.7)RTALITY 21.5 43.5 26.6 9.4 21.1 A-59 TABLE 1 SHiELLFISH INVENTORY SUIMMARY TATION NUMBER BB86-192 BB86-193 BB86-194 BB86-195 BB86-196ýATITUDE N 39046.75' 39o46.751 39046.50' 39046-50, 39046.50., ,ONGITUDE W 74010.39' 74011.03, 74011.03' 74 10.71' 74010.07'OLLECTION DATE 5/8/86 5/12/86 5/12/86 5/12/86 { 5/12/86 IDE AND HOURS High + 2.0 Low + 1.5 Low +.2.0 Low + 2.5 Low + 3.0 EMPERATURE AIR 17.5 16.0 13.0 13.0 13.5 0o AE S ND 13.o3 ND ND ND 0 WATER B ND 13.3 ND ND ND D.O. DN 8.3 ND ND ND (ppm) B ND 7.9 ND ND ND ALINIP S ND. 25.0 ND ND ND ( ppt) 1 ND 25.0 ND ND ND pH S ND 8.1 ND ND ND, B ND 8.2 ND ND ND EPTH (ft) 1 47 19 0% GFAVEL , , , *JESTRATE % SAND * * * * ,% MUD * , * * ,;TIMATED HARD CLAM?NSITY (#/ft-) 0.19 0.51 0.33 0.37 0.36% SL 0.0 1.0 2,9 5.4 0.0)M-MERCIAL LN 2.7 12.2 17.4 21.6 .0.0 SIZES CS 73.0 77°6 69.6 70.3 87.3 CH 24.3 9.2 10.1 2.7 12.7 JMBER CLAMS COLLECTED 37 102 66 74 .72 MZE (amm) *56-84 29-85 31-81. .32-83 58-84 SIZE (:rm) 70.71 65:;:1 63.3 61.2 70.1 MORTALI TY 21.3 10.5 9.6 10.8 24.2 A-60 TABLE 1 SfELLFISHI INVENTORY

SUMMARY

TION NUMBER BB86-197 BB86-198 BB886-199 BB86-200 BB86-201'ITUDE N 0 0 0 C0 0_ _ _ _ _ N 39 46.50' 39 46.25' 39 46.25' 39046.25' 39 46.251 GITUDE W 74 09°75' 74 09.75' 74 10.39' 74o 11.03' 74 11.35'-LECTION DATE LETO AE5/12/86 5/12/86 5/12/86 5/12/86 j 5/12/86 E AND HOURS Low + 4.0 Low + 4.5 Low + 6.0 High + 0.0 High + 1.0 PE RATUE AIR 14.5 13.0 1500 16.0 15.0 C ND ND ND ND ND CWATER B ND ND ND ND ND.0. S ND ND ND ND ND ppm) B ND ND 1 ND ND ND INI 'ly S ND ND ND ND ND ND 1 ND ND ND pp t) B I_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _SND ND ND NDND B ND ND ND ND ND BND ND ND ND ND mH (ft) 8' 9' 10' 7' 8"% GRAVEL , , , , , 3TRATE % SAND , , , , ,% MUD * , , , ,[MATED HARD CLAM 3ITY (#/ft2)_0.65 0.5i 0.17 0.44 0.12% SI 0.0 0.0 0.0 0.0 0.0 4ERCIAL LN 0.0 2.1 3.0 5.0 5.9 EZES CS 68.8 79.6 75.8 84.0 70.6 CH 31o2 18.3 21.2 1.0 23.5?ER CLAMS COLLECTED 129 95 34 87 12 RANGE 60-89 56-81 39-83 42-87 45-87:E mm) 74.3 71.3 71.7 68.1 70.8)RTALITY 19.4 22.8 24.4 8.4 7.7 A-61 TABLE 1 SýELLFISH INV7ENTORY SUMP1MARY;TATION NUMBER BB86-202 BB86-203 BB86-204 BB86-205 BB86-206 ,ATITUDE N 39o46.00' 39046.001 39°46.00' 39045.75' 39045.75',ONGITUDE W 74 10.71' 74010.07 74°09.43' 74 09.11' 74 009.75OLLECTION DATE 5/12/86 5/13/86 5/13/86 5/13/86 5/13/86'IDE AND HOURS High+ 2.0 Low + 1.0 Low.+ 2.0 Low + 2.5 Low + 3.0'EMPERATURE AIR 18.5 14.5 15.0 15.0 15.0 oC S .14.4 14o0 ND ND ND WATERI B 14.3 13.7 ND ND ND D.O. S 8.6 8.2 ND ND ND (ppm) B 8.4 8.2 ND ND ND ALINITY S 25.0 25.0 ND ND ND (ppt) B. 25.0 28.0 ND ND ND pH S 8.1 8.1 ND ND ND B 8.2 8,2 ND ND ND'EPTH (ft) 10' 10' 5' 4' 7'% GRAVEL * * * * *UBSTRATE % SAND * * * * *% MUD * * * * *STIMATED HARD CLAM 0.13 0.52 0.12 0.01 0.33 ENSITY (#/ft') 0.13_0.52 _ 012_0.01_0 % SL 0.0 0.0 0.0 0.0 1.5 OMMERCIAL LN 0.0. 2.0 18..2 0.0 1.5 SIZES CS 76.9 87.3 54.5 100 56.1 CH. 23.1 10.7 27.3 0.0 40.9 UMBER CLAMS COLLECTED 13 103 12 1 66 IZE RANGE (mm) 63-82 44-83 48-83 36-93V SIZE (lmn) 70.4 69.6. 76.0 73.0 41.0 MORTALITY 18.8 18.9 7.7 1 0.0 1 12.0 A- 62 TABLE 1 SfELLFISH INVENTORY SUPAJvRY iTION NUMBER BB86-207 BB86-208 BB86-209 BB86-210 BB86-211'ITUDE N 39045.75' 39045.75, 39 0 75 39045.50' 39045,50'[GITUDE W 74010.39, 74o11.03' 74 11.35' 74011.35, 74010.71',LECTION DATE 5/13/86 5/13/86 5/13/86 5/13/86 5/13/86)E AND HOURS Low + 3o5 Low + 3.5 Low + 5.0 Low + 5.0 High + 0.5..PERATURE AIR 14.5 16.5 15.0 15.5 17.0 0C S ND ND ND ND ND C WATER B ND ND ND ND ND.0. .S ND ND ND .ND j ND ppm) B ND ND ND ND ND INITY S ND ND ND ND ND ppt) B ND ND ND ND ND H S ND ND ND ND ND B. ND ND ND ND ND TH (ft) 10' 10' 9' 6' 10'% GRAVEL , * , , *STRATE % SAND , , , , *% MUD , , , * *IMATED HARD CLAM F 3=TY 0.10 0.20 0.31. 0.25 0.10 SL 0.0 0.0 6.7 0.0 0.0 MIERCIAL LN 0.0 0.0 3.3 8.0 0.0 EZES Cs 94.1 94.7 70.0 88.0 89.5 CH 5.9 5.3 20.0 4.0 10.5 3ER CLAMS COLLECTED 17 20 31 50 19 RANGE (mm) 57-81 57-94 34-86 39-79 60-83 EZE (mm) 69.8 66.0 68.5 65.8 70.0 DRTALITY 22.7 20.0 11.4 5.6 9.5 A-63 TABLE 1 SHELLFISH INVEMTOPY SUMMA:,tRY 3TATION NUMBER BB86-212 BB86-213 BB86-214 BB86-215 RPR6-21 8 LATITUDE N 39045.501 .39045.25' 39045.25' 39045.25' 39045.25'IONGITUDE W 74010.07' 74011.351 74 0 103' 74010".39' 740 0 9.75OLLECTION DATE 5/13/86 5/27/86 5/27/86 5/27/86 5/27/86 2IDE AND HOURS High + 1.0 Low + 2.0 Low + 3.0 Low + 3.5 Low + 4.5'EMPEPATURE AIR 17.5 21.0 23.0. 23.5 20.0 A T 14.8 19.1 ND ND 19.3 A 14.8 19.0 ND ND 1972 D.O. S 8.5 7.3 ND [ ND 7.7 (ppm) B 8.3 7.0 ND ND 7.5 mALINI'TY S 26.0 22.0 ND ND 22.0 (ppt) B 27.0 24.0 j ND f ND 2 5.0 pH S 8.2 8.1 ND ND 8.1 B 8.2 8.1 { ND ND 8,0)EPTH (ft) 10' 7' ] 9' 9' 8'% GRAVEL * * * * *UBSTRATE % SAND * * { * * *% MUD * , , * , STIMATED HARD CLAM0 I ENSITY #/ft ) 0.42 0.40 0.17 0.15 0.47% SL 6.0 1.3 0.0 4.4 1.2 OMMERCIAL LN 6.0 11 ..2 0.0 13.0 1.2 SIZES CS 75.0 77.5 83.3 65.2 77.4 CH 13.0 10.0 { 16.7 17.4 20.2 UMBER CLAMS COLLECTED 83 79 17 23 88 IZE RANGE (mm) 31-83 37-83 64-83 31-81 36-86 SIZE (:mm) 66.8 66.4 72.3 66.3 70.9 MORTALITY 11.7 0.0 10.5 8.0 6.4 A-64 TABLE 1 S -ELLF IS INVENTORY SUtMM.ýARY TION NUMBER BB86-21 7 BB86-218 BB86-219 BB86-220 BB86-221 0039%0 750 ITUDE N 39045.00' 39045.00' 39045.00' 39045.00' 39 44.75'GITUDE W 74011.35' 74010.71' 74010o071 740 0 9.43' 74°11o03'LECTION DATE 5/28/86 5/28/86 5/28/86 5/28/86 *5/29/86 E AND HOURS Low + 4.0 Low + 4.0 Low + 4.5 Low +.5.0 High + 6.0 PERATURE AIR 25.0 25.5 27.0 27.0 23.5 0 S ND ND ND 20.2 20.1 C WATER B ND ND ND 20.2 20. 0.0. S ND ND ND 7.3 7.1 ppm) B ND ND ND 6.2 } 7.1]INITY S ND ND ND 25.0 26.0 ppt) B ND ND ND 24.0 25.0 H S ND ND ND 8.0 8.0 B ND ND ND 8.1 8.0 TH (ft) 71 9' 8' 6' 7'%GRAVEL * * * * *-TRPTE % SAND * * * *% MUD * * * * *!MATED HARD CLAM ATED (ARDtCLA 0.34 0.08 0.44 0.51 0.19 SITY (#/ft)_______ _____________ % SL 3.0 0.0 0.0 1.9 0.0 MERCIAL LN 6.0 6.3 10.8 7.8 5.6 lZES CS 85.0 .75.0 74.7 77.7 .83.3 CH .6.0 18.7 14.5 12.6 11.1:ER CLAMS COLLECTED 67 16 88 102 19 S RANGE (mm) 31-89 41-85 39-84 32-85 43-82 IZE (:nn) 65.4 72.7 68.3 67.4 70.2 DRTALITY 17.3 0.0 .2.2 6.4 5.0 A-65 TABLE 1 SHELLFISH INVENTORY SUM'MARY TATION NUMBER BB86-222 BB86-223 BB86-224 BB86-225 BB86-226 ATITUDE N 39045°751 39044.75' 39044 o75.751 39° 44.501 ONGITUDE W 74°0o139, 74°0 0 74°09.71' 74 08.47, 74008.15, OLLECTI ON DATE 5/29/86 5/29/86 5/29/86 5/29/86 5/29/86 IDE AND HOURS Low + 0.0 Low + 0.5 Low + 1.0 Low + 2.0 Low + 2.5 EMPER7ATURE AIR 24.0 25. 5 26.0 26.0 24.0 oC WATER 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 LINITYS ND ND ND ND ND (Ppt) B ND ND ] ND ND ND p_ S ND ND ND ND ND B ND ND ND ND ND EPTH (ft) 7' 7' 7' 6' 1 4'% GRAVEL , , , * , UBSTRATE % SAND * * , * ,% MUD * , * * *STIMATED HARD CLAM]NSITY t/ft) 022 0.39 0.28 0.36 0.12% SL 2.4 7.7 5.6 0.0 0.0 DMMERCIAL LN 11.9 18.0 5o6 13.9 0 0.0 SIZES CS 69o0 69.2 74.0 79.2 100 CH 16.-7 .5.1 14.8 6.9 0.0 JMBER CLAMS COLLECTED 44 78 56 72 12 IZE RANGE (mm) 37-80 33-82 29-78 40-86 64-75 SIZE (: mn) 68.1 62.7 66.1 66.0 68.0 MORTALITY 6.4 2.5 5.1 4.0 7.7 A-66 TABLE 1 S RELLFISN INVENTORY

SUMMARY

[PION NUMBER BB86-227 BB86-228 BB86-229 BB86-230 BB86-231 0 0 71 0 0 ETUDE N 39044+50, 39o44°50' ' 39044o50' 39°44o25' 39o44°25']ITUDE W 74 08679' 74 09.43' 74 10.07' 74009.75' 74009.11i LECTI ON DATE 5/29/86 5/29/86 5/29/86 6/3/86m 6/3/86 AND HOURS Low + 3.0 Low + 3.5 Low + 4.0 High + 1.0 High + 2.0 DERATURE AIR 23. 5 23°0 24.5 14.5 15.0 S ND ND .-2143 18.8 ND C WATER B ND ND 21.0 18.8 ND.0. S ND ND 7.5 7.3 ND pB_ ND ND 7.4 7.2 NDýNITY S ND ND 25.0 26.0 ND II I ._pt) B ND ND 25.0 25.0 ND S ND ND 8.1 8.1 ND B .ND 8.0 8.0 NO'H (ft) 6' 61 5' 5' 6'i% GRAVEL * * * * *TRATE % SAND * * * * *% MUD * * * * *MATED HARD CLANI ITY H#/DtLA 0.29 0.25 0.23 0.32 0.33 SL 3.4 4.2 6.7 3°2 0.0 ERCIAL LN 3.4 8.3 8.9 9.7 10.8 ZES CS 74.2 79.2 71.1 77.4 84.6 CH 19.0 8.3 13.3 9.7 4.6 ER CLAMS COLLECTED 57 49 46 63 65 RANGE (mm) 29-89 32-83 29-81 31-84 38-84 ZE (.mm) 69.2 65.0 65.8 65.8 64,9 RTALITY 8.1 7.5 2.1 0.0 4.4 A-67 TABLE 1 SriELLFISH II'TVENTORY

SUMMARY

TATION NUMBER BB86-232 F7BB86-233 BB86-234 [ BB86-235 BB86-236 ,ATITUDE N 39044 .25 1 39044.25' 39044 .25' 39044"00' 39044.00'0J ,CNGITUDE W 74o08.47, 74°0 7.83, 74007.51, 74 07.51' 74o09.53': OLLECTION DATE 6/.3/86 6/3/86 6/3/86 6/3/86 6/5/86'IDE AND HOURS High + 2.5 High + 3.5 High + 4.0 High +. 5.0 High + 0.E LMPERATURE AIR 15.0 16.0 16.0 16.0 22.0 0C WATER S ND ND ND 18.0 19.0 B ND ND ND 17.8 19.0 D.0. S ND ND ND 7.1 7.2 Sr (ppm) B ND ND , ND 6.9 7.2 ALlNITY S ND ND ND 25.0 22.0 7 (ppt) B ND ND ,[ ND 26.0 25.0 pH S D ND ND 8.1 8.1 B ND ND r ND 8.1 8.1 EPTH (ft) 51 41 4' 41 71% GRAVEL *.LJBSTRATE

% SAND * * * *% MUD * * *

1*HARD CLAM. N (#/ft) 0.18 0.21 ND 0.17 0.04 7.NSITY SL 0.0 0.0 ND 0.0 0.0 DMMERCIAL LN 11.1 0.0 ND 7.2 0.0 SIZES CS 77.8 85.0 ND 46.4 50.0 CH 11.1 15.0 ND 46.4 50.0 UMBER CLAMS COLLECTED 18 21 ND 17 4[ZE RA.NGE (rm) 48-79 58-82 ND 52-92 61-78 SIZE (:mnm) 66.0 69.4 ND 73.9 70 ,3 MORTALITY 25.0 12.5 ND 5.6 0.0 A-68 TABLE 1 SPF'LLFISH INVENTORY

SUMMARY

TION NUMBER BB86-237 BB86-238 BB86-239 BB86-240 BB86-241 ITUDE N 39044.00' 39047.45, 39o47.45' 39o47.30 39 046.37'SITUDE W 74o 08.79' 74o08.40' 74007.83' 74007.51' 74006.81'LECTI ON DATE 6/5/86 6/9/86 6/9/86 6/9/86 6/9/86 E AND HOURS High + 1.5 Low + 2.5 Low + 3.0 Low + 3.5 Low + 4.5 RERATURE AIR 20.0 21.0 21.5 22.0 23.0 SWATER ND 21.2 ND IND IND B ND 21.2 ND ND ND I. S ND ND ND ND ND B I)ND 6.4 [ ND ND ND INITY S ND ND ND ND ND)pt) B ND 26.0 IND ND IND I1 ND ND ND ND ND B ND 8.1 ND ND ND 4 (ft) 45 45.7' 8'% GRAVEL , , * , *TRATE % SAND * , * * *% MUD , * , * , MATED HARD CLAM ITY (#/ft"- 0.31 0011 0.0 0.0 0.01% SL 2.4 0.0 ND IND 0.0 iERCIAL LN 14.3 0.0 ND IND 0.0 ZES CS 78.6 27.3 IND ND 100 CH 4.7 72.7 ND ND 0.0 ER CLAMS COLLECTED 46 11 0.0 0.0 1 RANGE (nin) 37-80 70-86 IND ND ZE (:mm) 64.0 79.0 ND ND 69.0 RTALITY 4.2 8.3 0.0 0.0 0.0 A-69 TAB LE 1 ScELLFISH INVENTORY SUMý,tiRY:;TATION NUMBER BB86-242 BB86-243 BB86-244 BB86-246 BB86-245 LATITUDE N 39o45.30' 39°45.80' _390_47.48' 39046.00' 39046°25'LONGITUDE W 74 06.87' 74 07.09' 74 08.80' 74 08.90' 74 08.85'_ _ _ _ _ 6/9/86 6/9/86 6/9/86 6/10/86 6/10/86 rIDE AND HOURS High + 0.0 High + 0.5 High + 2.0 Low + 2.5 Low + 3.0'EMPERATURE AIR 23.5 25.0 24.0 21.0 22.0 0C WATER ND 19.2 21.8 21.0 ND_ND 1 6.7 21.8 20.8 ND D.O. S ND 6.7 7.9 7.5 ND (ppm) BND 6.3 7.8 6.6 ND ND 26.0 25.0 I 25.0 ND (ppt) B N 60_______ _______ ____ND 26.0 225.0 26.0 ND pH S ND 7. 9 8.1 8.2 ND B I ND 8.0 81 8.2 ND)EPTH (ft) 4' 101 51 41 51% GRAVEL UBSTRATE % SAND , , .,% M U D , , * , ,!STIMATED HARD CLAMVI)ENSITY 0.61 0.44 0.14 0.07 0.02% SL 0.0 4.6 0.0 0.0 0.0 LN 5.5 36.4. 0,0 14.2 0.0 SIZES CS 32.7 50.0 25.9 4 2.9 50.0 CH 61.8 9.0 74.1 42.9 50.0 JUMBER CLAMS CO;IZE RANGE (mm)LLECTED 55 44 28 7 2 39-97 30-95 63-95 53-78 76-80 SIZ E (mm) 77.9 59.0 83.1 68.9 78.0 MORTALITY 12.7 ý20.0 3.4 0.0 66.7 A-70 TABLE 1 SriELLFISH INVENTORY

SUMMARY

JTION NUMBER BB86-247 BB86-248 BB86-249 BB86-250 BB86-251_ITUDE N 39 46.50' 39 46-50' 39046.25, 39 46.00' 39 045.55'IGITUDE W 74o08.40, 74008.07, 74o07.61' 74 07.51' 74 007.39',LECTION DATE 6/10/86 6/10/86 6/10/86 6/10/86 6/10/86_E AND HOURS Low + 4.0 Low + 4.5 High:+ 0.0 High + 1.0 High + 1.5 IPERATURE AIR 23.5 24.5 24.5 24.5 23.5 0 S C WATER ND ND ND ND ND B ___ND ND ND ND ND)._O. S_ _ ND ND ND ND ND ppm) B ND ND ND ND ND ,INITY S ND ND ND ND ND NDDN ppt) B ND ND ND ND) ND H S B S ND ND ND ND ND B ND ND ND ND ND TH (ft) 51 5v 4' 6' 7'% GRAVEL * .* * .STRATE % SAND * * * * *% MUD ....IMATED HARD CLAM SITY (#/fti-) _020 0.07 0.0 0.13 0.03 SL 0.0 0.0 ND 0.0 0.0 MERCIAL LN 10.0 0.0 ND 0;Q1 0.0 IZES CS 50.0 14.3 ND 7.1 0.0 CH 40.0 85.7 ND 92.9 100 BER CLAMS COLLECTED 20 14 0.0 13 3 E RANGE (mm) 39-97 60-99 N ND 75-100 80-82 IZE Clml) 72.9 86.4 ND *87.4 81.0 0.RTALITY 0.0 6.7 0.0 0.0 0.0 A-71 TABLE 1 SPiELLFISH INVENTORY

SUMMARY

,TATION NUMBER BB86-252 BB86-253 BB86-254 BB86-255 BB86-256 LATITUDE N 39045.80, 39°43.50 J 39043.75' 39043.75 39 043.751 ,ONGITUDE W 740770' 74°08.94' 74 00911' 74°09.431 74 08.47'OLLECTION DATE 6/10/86 6/16/86 6/16/86 6/16/86 L 6/16/86'IDE AND HOURS High + 1.5 High + 5.0 High + 5.5 High + 6.0 Low + 0.5?EMPERATURE AIR 24.0 24.5 25.0 25.0 j 25.0 oT S 2113 .23.4 ND ND ND C W T ER _ N B 20.8 23.3 ND N ND ND D.O. S 7.1 6.8 ND ND ND (ppm) { B 6.4 6.8 ND ND ND ALhITY .[25.0 25.0 ND ND j ND (pBt) E .26.0 26.0 ND ND ND pH S 8.1 8.4 " ND ND ND B 8.0 8.5 ND I ND ND)EPTH (ft) 5' ' 5 1' 54' 4% GRAVEL , , * * , UBSTPRATE

% SAND * , * ] * *% MUD , * * * ,:STIMATED HARD CLAM)ENSITY 0.0 0.20 0.0 0.08 D0.08% SL ND 0.0 ND i1.1 I 0.0:OMMERCI AL LN ND 30.0 ND I 33o3 0.0 SIZES CS ND 70.0 ND 55.6 91.7 CH ND 0.0 ND 1 0.0 8.3 IUMBER CLAMS COLLECTED 0.0 20 0 8 12:IZE RA.NGE (mm) ND 39-73 ND 31-73 57-78 SIZE (mm) ND 58.4 ND 1 56.8 .69.0 MORTALITY 100 4.8 0.0 .0.0 0.08 A-72 TABLE 1 SHELLF'ISH INVENTORY SUM>ULURY TION NUMPBER BB8 6-257 RReB--26N ITUDE N 3904375' 39044.10' 39044.15' 39043.40' 39043 .20 GITUDE W I 74008.15, 74'07.831 74o08.15, 74o08.50, 74008.40, LECTION DATE 6/16/86 6/19/86 6/19/86 6/19/86 6/19/86 E AND HOURS Low + 1.0 High + 2°0 High + 2.5 *High + 3.5 High + 4.5 PERATURE 1AIR 25.0 17.0 19.0 20.0 21.0 oc S ND 19.8 ND ND ND WATE R ND 19.8 } ND ND ND.0. S ND ND ND ND ND) ND 7.0 ND ND ND I NIT S I ND ND ND ND ND B ND 25.0 ND ND ND H ND ND ND ND ND B ND 8.4 ND ND ND TH (ft) 41 4' 41 .41 4v% GRAVEL , * * * *S TP-RTE % SAND * , * * ,% MUD , , * * , IMATED HARD CL0 T.:ITY (#f/ft) 0°08 0.19 0.10 0.10 0.02 SL 00 0.0 0.0 0.0 0.0 MERCIAL LN 0.0 0.0 20.0 40.0 33.3 IZES CS 93.8 18.9 10.0 0.0 0.0 CH I 6..2 18.9 I 10.0 0.0 .0.0 3ER CLAMS COLLECTED 11 37 20 10 RANCE 61--79 59--94 47-82 4770 55-75 12E (.mr) 69.-9 70.7 65ý5, 59.9, -66.3)RTALiTY 0.0 5.1 0.0 16o7 25.0*0.0 5.1 0.0 A-73 TABLE 1.tE!.LFISH INVENTORY

SUMMARY

TATION NUMBER BB86-262 BB86-263 BB86-264 BB86-265 BB86-266 ,A I U E N39° 3 25 'w 39°42.75' 39042.90' 39°75.85' 39°4 1.2.JATITUDE N 309094252',ONGITUDE W 74°08.79, 74o08.47, 74007.201 74008.67' 74008.771: OLLECTION DATE 6/19/86 6/19/86 6/23/86 6/23/86 6/23/86'IDE AND HOURS High + 5.0 High + 5.5 Low + 3.5 Low + 4.0 Low + 5.0'EMPEPATURE AIR 20.0 20.0 23.0 23-0 25.5 0C S ND 21.0 20.3 ND ND WATER ND 21.0 20.3 ND ND DO. S N ND ND ND ND ND (popm) B ND 5 ý.,4 5.3 ND ND ALINIT!Z [ ___ ND ND j D ND ND (Ppt) B ND 25.0 26.0 ND ND pH .ND ND .ND ND ND SH_______ B ND 8.5 8.4 [ ND ND EPTH (ft) 4. 41 41 41 44% GRAVEL * * * * *UBS TRATE % SAND * * * * *% MUD * * * * *STIMATED HARD CLAM 0.02 0.01 ENSITY (#/ ft 0.03 0 .07 0 .09 0 .02 0 .01% SL 0.0 11.1 0.0 0.0 0.0 0MMERCIAL LN 33.3 33.3 22.2 0.0 0.0 SIZES CS 66.7 55.6 77.8 100 100 CH 0.0 0.0 0.0 .0.0 0.0 UMBER CLAMS COLLECTED 3 7 9 2 1 IZE RANGE (rmm) 55-64 15-74 52-70 68-73 SIZE (mm) 60.3 54.8 54.1 65.5 69.0 MORTALITY 40.0 0.0 18.2 0.0 0.0 A-74 TABLE 1 SPELLFISH INV-ENTORY SUMMIARY TION NUMBER BB86-267 BB86-268 BB86-269 BB86-270 BB86-271 ITUDE N 3 0 42.30 39 04.50 0 TUDE N 2390423025 39042.30' 39042.50' 39 42.70'SITUDE W 74o08.40, 74o09.11' 74009.53' 74 09.43 74 009.11'LECTION DATE 6/23/86 6/23/86 6/23/86 6/25/86 6/25/86 E AND HOURS High + 0o0 High + 0.5 High + 1.0 Low + 2.0 Low + 3.0 PERATURE AIR 27.0 27.0 29.0 21.0 19.0 DC ND ND ND 20.2 ND WATER I ND ND ND 20.2 ND.S ND ND ND 6.8 ND rpm) B ND ND 5.0 6.7 ND s I ND ND ND 25.0 ND) B ND ND 25.0 26.0 ND S ND ND ND: 8.4 .ND B ND ND 8.4 8.4 ND rH (ft) 41 .4' 8' ] 4'% GR.AVEL STRATE % SAND , , j , ,% MUD , , * *M-IATED HARD CLAM 3ITY (1 0.10.07 0.10 0.07 0.04% SL 0.0 0.0 0.0 0.0 0.0 4IERCIAL LN 0.0 57.I 50.0 0.0 0.0 IZES CS 84.6 28.6 50.0 85.7 100 CH 15.4 14.3 0.0 14.3 0.0 3ER CLAMS COLLECTED 13 7 10 7 4 PjANGE (mm) 62-79 52-77 49-67 59-81 58-73 IZE (ram) 70.6 62.1 57.8 68.9 62°8)RTALITY 7.1 0.0 16.7 0.0 0.0 A-75 TABLE 1 SHELLFISH INVENTORY SUM7'-,ARY TATION NUMBER BB86-272 BB86-273 BB86-274 BB86-275 BB86-276 ,ATITUDE N 39043.00' 39°43.00 3 39°43.25' 390 43.60' 39 42.00',ONGITUDE W 74009.43' 74010.07,.

74 009.75, 74 09.80' 74 08.72OLLECTION DATE 6/25/86 6/25/86 6/25/86 6/25/86 6/26/86'IDE AND HOURS Low + 3.5 Low + 4.0 Low + 5.0 High + 0.0 Low + 1.5'EMPERATURE AIR 19.0 22.0 21.5 21.0 21.5 oC S ND ND ND ND 2 1 WATER ---B ND ND ND ND 19.8 D.O. S ND ND ND ND ND (ppm) B ND ND ND 8.8 ND ALINITY S ND ND ND ND 26.0 (ppt) B ND ND ND 24.0 26.0 pH S ND ND ND ND 8.3 ND ND ND 8.4 8.3 EPTH (ft) 6' 5' 5' 3"i 5'I GRAVEL * * * * *., UBSTRATE % SAND * * *_ _ _ 1%DAUD .* * * *STIMATED HARD CTAl-' .022 0.27 0.12 0.01 0.08'ENSITY (4/ftP) .22_.27_012_0.1_0°0 % SL 0.0 0.0 0.0 0.0 0.0'OMMERCIAL LN 18.2 4.0 0.0 0.0 25.0 SIZES CS 68.2 68.0 58.8 100 75.0 CH 13.6 28.0 41.2 0.0 0.0 lI:UMBER CLAMS COLLECTED 22 27 12 1 8 IZE RANGE (run) 43-82 55-87 62-87 54-75 SIZE (:mm) 66.6 70.8 73.3 67.0 63.1 MORTALITY 8.3 3.6 7.7 0.0 0.0 A-76 TABLE 1 SPELLFISH INVENTORY

SUMMARY

T2ION NUMBER.BB86-277 BB86-278 BB86-279 BB86-280 BB86-281 ITUDE N 390 4.0390 4175 0 0 0 TN39°42.00' 3941.75 39o41.70' 39 41.50' 39 41.25'SITUDE W 74o09.44, 74009.75, 74009.10, 74009.15, 14o'9.60 _LECTION DATE 6/26/86 6/26/86 6/26/86 7/1/86 7/1/86 E AND HOURS Low + 2.0 Low + 3.0 Low + 3.5 High + 4.5 High + 5.5 PERATURE AIR 20.5 21.5 21.5 21.5 23.5 Ic S -ND ND ND 22.7 ND WATER -II B ND ND ND 22.2 ND.0. S ND ND ND 6.4 ND DIM) B ND ND ND 5.9 ND EWITY S ND ND ND 28.0 ND sot) B ND ND 26.0 29.0 ND S ND ND ND 8.3 ND B ND ND 8.3 8.4 ND IH (ft) 4' 4' 4' 10' 4'% GRAVEL , * * * , 3TRATE % SAND , * , , ,% MUD * * * * *[MATED HARD CLAM'ITY (#/f t_-)_ 0.09 0.03 0.19 0.0 0..03% SL i1.1 0.0 0.0 ND 0.0 41ERCIAL LN 22.2 100 11.1 ND 33.3 EZES CS 55.6 0.0 88.9 ND 66.:7 CH 11.1 0.0 0.0 ND 0.0-'.ER CLAMS COLLECTED 9 3 19 0:.b 3 RANGE (mm) 33-82 48-53

53-72 ND 49-66[ZE (..rm) 61.4 51.3 63.3 ND 60.0')RTALI TY 0.0 0.0 17.4 100 0.0 A-77 TABLE 1 SFELLFFISH INVENTORY SUkMIARY TATION NUMBER BB86-282 BB86-285 BB86-283 BB86-284 BB86-286 ,ATITUDE N 39041.00' 39 40.75' 39 40.501 39 040.75' 39 41°00',ONGITUDE W 74009.28' 74009.60' 74009°91, 74010"23' 74010.55'OLLECTION DATE 7/i/86 7/1/86 7/1/86 T 7/7/86 7/7/86'IDE AND HOURS Low + 0.0 Low + 1.0 Low + 1.0 Low + 4.0 Low + 5.0 EMPERATURE AIR 23.5 24.0 24.0 31.0 31.0 0C JT S ND ND 23.4 24o5 ND SWATERI ND ND .23.3 24.0 4 ND D.0. S ND
ND 7.9 5.6 ND (ppm) ND ND 7.8 5.3 ND ALINITY S ] ND ND 30.0 30.0 ND (ppt) B ND ND 30.0 29.0 ND.pH [ S ND. ND 8,4 8.4 ND ND ND 8.4 8.1 ND EPTH (ft) 4' 5' 6' 30' 5'% GRAVEL * * * * *UBSTRATE % SAND * * , * *% MUD * * *STIM.TiTED HARD3 CLAM ENSiTY. (#/fCL)0.04 0,07 0.40 0.10. 0.04 EN I Y (#/ftZ __ __ _ __ _ 1__ _ __ _ t% SL 0.0 0.0 0.0 9.1 0.0 OMMERCIAL LN 50.0 28.6 26.8 0.0 50.0 SIZES CS 50.0 71.4 63.4 81.8 50.0 CH 0.0 0.0 9.8 9.1 0.0 UMBER CLAMS COLLECTED 4 7 40 10 4 IZE RANGE (mm) 50-61 52-68 39-84 28-80 44-68 SIZE (mm) 56.5 62.0 61.8 65.1 .57.3 MORTALITY 20.0 0.0 2.4 0.0 0.0 A-78 TABLE 1 StiELLFI.SH INVENTORY SUIMP'/ARY

ýTION NUMBER PB86-287 BB86-288 BB86-289 _BB86-290 BB86-291_'ITUDE N FJ39°41.25' 39041.00' 36'40.87' 39 40.95' 39040.50'GITUDE W 74010.87' 74011.19. 74 11.51'. 74 11.66' 74010.55'LECTION DATE 7/7/86 7/7/86 7/7/86 7/7/86 7/8/86 E AND HOURS High + 0.0 High + 0.5 High + 1.5 High + 2.0 Low + 4.0 PERATURE AIR 33.5 34 .0 36.0 36.0 28.0 0 C W ND ND 26.5 ND 26.5 B ND ND 25.0 ND 26.5 C C. S ND ND 5.5 ND 5.6 m) B ND ND 4.4 ND 5.5Y S ND ND 30.0 ND 27.0 EpPt) B ND ND 30.0 ND 29.0 b1 S ND ND 8-4 ND 8.2 ND ND 8.3 ND 8.3 FH (ft) 6' 6' 6' ' 5 t 71':% GRAVEL , * , * *.TRATE % SAND * * , * *% MUD,,,,*ýMATED HARD CLAIM zITY .. ftj) 0.12. 0.16 0.12 0.24 0.16% SL 0.0 0.0 8.3 4.2 6.3 IIERCIAL LN 0.0 4.3 0.0 16.7 18.7 ZES CS 83.3 60.9 75.0 33.3 75.0 CH 16.7 34.8 16.7 45.8 0.0 3ER CLAMS COLLECTED 12 24 12 24 16 I RA.NGE (in) 61-81 45-86 35-78 36-95 35-75 SZE (: m 73.4 73.1 64.6 71.3 63.4)RTALITY 0.0 0.0 7.7 0.0 0.0 A-79 TABLE 1 SnELLFISH INVENTORY S U ILLAIARY AT!ON NUMBER BB86-292 BB86-293 BB86-294 BB86-295 BB86-296 IATITUDE N 39 40.75' 39 40.50' 39040.25' 39'40.00' 39'40.25,.CNGITUDE W 74 10.87' 74 11.19, 74O10055' 74 10.55' 74 010.23OLLECTION DATE 7/8/86 7/8/86 .7/8/86 7/8/86 7/10/86'IDE AND HOURS Low + 4.5 LaW w 5.0 High + 0.0 High + Ii0 Low + 3.0?EMPERATURE AIR 29.0 28.0 31.0 32.0 23.0 o0C S ND ND ND 27.0 24.5 WATER --B ND ND ND 26.5 24.5 D.0. S ND ND ND 6.8 5.6 (ppm) B ND ND ND 6.8 5.6 ALIN1iT S ND ND ND 1 29.0 30.0 (ppt) B ND ND ND 26.0 30.0 i-HS ND ND ND 8.3 8.2 ND ND ND 8.3 8.2?TH (ft) 71 71 6' 51 6'*% % GRAVEL , , , *U-BSTRATE % SAND , , , , ,% MUD,,,,, STIMATED HARD CLAM ENSITY (/ft)0.02 004 0. 0.06 0.29 S SL 0.0 0.0 9.1 0.0 0.0 OMMERCIAL LN 0.0 0.0 27.3 25.0 8.8 SIZES CS 66.7 100 63.6 75.0 71.9 CH 33.3 0.0 0.0 0.0 19.3 UMBER CLANMS COLLECTED 3 4 ii 6 44 IZE RANGE (mm) .58-79 60-73 37-70 56-69 48-92 SIZE (amm) 69.0. 66.0 59.5 62.8 68.7 MORTALITY 0.0 0.0 0.0 25.0 2.2 A-80 TABLE 1 SHMELLFISH INVENTORY SUIAJMARY TION NUMBER BB86-297 BB86-298 BB86-299 BB86-300 BB86-301 ITUDE N 39 39.75' 39 39.35' 39 39.60' 39°40.05' 39 40.25'GITUDE W 74010.87' .74°10.. 97' 74 0 i1.00' 74011.10 1 74011.51'LECTION DATE 7/10/86 7/10/86 7/10/86 7/10/86 7/28/86 E AND HOURS Low + 3.0 Low + 4.0 Low + 5.0 High + 0.0 Low + 0.0 PERATURE AIR 24.5 27.0 27.0 27.0 27.0 c S ND ND ND 25.5 26ý5 WATER _______ .______ _____B ND ND ND 25.5 26.5 O. S ND ND ND .8.5 7.8:,m) B ND ND ND 7.7 7.3[ NI TY S ND ND ND 30.0 29.0)pt) B ND ND ND 30.0 30.0 I S ND ND ND 8.4 8.1 B ND ND ND 8.2 8.1ý'H (f t) 51 91 41 51 51% GRAVEL * , , , ,;TRATE % SAND. *, , * *% MUD , * * , *]MATED hARD CLAN;ITE HARD 0.37 0.14 0.05- .0.10 0.06%SL 1*.8 5.3 0.0 0.0 0.0 IERCIA L LN 8.8 0.0 20.0 30.0 16.7 ZES CS 77.2 52.6 80.0 70.0 83.3 12.2 42.1 0.0 0.0 0.0;ER CLAMS COLLECTED 5 1.510 6 RANGE (n) 35-86 37-79 55-76 46-75 44-74:ZE (,mm) 62.8 70.8 65.0 61.2 64.2)RTALITY 1.8 5.0 0.0 0.0 14.o3 A-SI TABLE 1 SIELLFISA INVENTORY SUMYIARY iTATION NUMBER BB86-302 BB86-303 BB86-304 LATITUDE N 39040.50' 39O39o90.' 39o39.75'IONGITUDE W 74011.70' 74011.89' 74°)11.50' 'OLLECTION DATE 7/28/86 7/28/86 8/7/86.IDE AND HOURS Low + 1.0 Low + 1.0 High + 0.5.?EMPEPATURE AIR 26.5 27.0 28.0 0 c S ND ND 26.8 W B ND NmD 26.8 D.O. S ND ND ND (ppm) B ND ND J 6.8 (ppt) B ND ND 25.0 r-H S ND ND ND B ND ND 8.0 {EPTH (ft) 4' 4v 4' {% GRAVEL K * * *UBSTRATE % SAND * , *% MUD * * *:ýTIMATED HARD. CLAN .-ENSITY (#/ft 0:.04 0.02 0.08 SL 0.0 0.0 0.0 DMIMERCIAL LN 25..0 .0.0 0.0 SIZES CS 75.0 10.0 87.5 CH 0.0 0.0 12.5 JMBER CLAMS COLLECTED 4 2 8 IZZE RANGE (mmn) 54-64 62-64 58-~78 SIZE (mm) 58.8 63.0 66.0 MORTALITY 20.0 0.0 11.1 A-82 TAB LE 2 StIELLFISH INViENTORY

SUMMARY

St. Georqes Thorofare 1985 GATION NUMBEP sG85-1 S G85-2 SG85-3 SG85-4 SG85-5 ,TITUDE 4 0, 0, 0 0 0 , ____TUD_______ 39°23.60' 39 ý3.50' 39 23.40' 39 23.60' 39 23.60'00 c'NGITUDE W 74o23.90' 74023.90! 74 23.90' 74°24.10' 74 24.10'LLECTICN DATE 6/3/85 6/3/85 6/3/85 6/3/85 .6/3/85 DE AND HOURS High + 0.5 High + 1.0 High + 1.5 High + 2.0 High 2.5 MPERATURE AIR 23.0 25.5 27.0 28.0 28.0°C WTR 19.7 ND ND ND ND WATER_______ B 19.5 ND ND ND ND____ 8.6 ND ND ND ND (ppm) B 7.8 ND ND ND ND LINIT'! S 31.0 ND ND ND ND (ppt) B 31.0 ND ND ND ND 7.9 ND ND ND ND B _ .__ _7.9 ND ND ND ND-TH (ft) 10' 10l 8L 51%C-RVEL -0 0 0.6 0 0 3STRATE % SAND 83.2 93.0 90.8 85.4 86.4% MIUD 16.8 7.0 8.6 14.6 13.6.SITY (#/ftH ) 0.58 1.24 0.51 1.07 0.77 4SITY #/ft'.4MERCIAL IIZES lEER C LAM[S SL 8.6 8.3 16.7 7.1 9.0 LN 20.7 30.6 31.8 17.9 31.9 CS 32.9 43.0 34.8 38.1 36.1 CH 37.8 18.1 16.7 36.9 23.0 4-tt +COLLECTED 87 i24 76 90 153 ,E Ri:IZE ANGE (mm) 32-100 30-100 ] 30-101 30-111 30-116 (mm) 66.5 59.9 57.9 j 69.6 61.8 IORTALITY 4,]D-No Data 3.3 6.8 3.8 1.1 6.7 A-83 TABLE 2 (cont.)SlELLFTSH INVENTORY SUMiMARY St. Georqes Thorofare 1985 STATION NUýMER SG85-6 SG85-7 S SG85-8 SG85-9 SG85-I(LATITUDE N 39°23.50' 39°23.40' 39023.35' 39023"10, j 39°23.3c LONGITUDE W 7424.40' 74024.45! 74024.48. 74°24.70, 74o24.5C COLLECTION DATE 6/3/85 6/3/85 6/3/85 6/4/85 6/4/85 TIDE AND HOURS High + 3.0 High + 3.5 High + 4.0 Low + 5.5 High + 0.TEMPEPIRTURE AIR 29.0 27.0 26.0 .21.0 22.0 0 oC S ND ND 20.7 16.3 ND WATER_____ B ND ND 18.5 16.3 I ND D.C. S ND ND 10.0 8.6 ND (ppm) B ND ND 10.0 8.6 ND SALI NI7TY S ND ND 31.0 31.5 ND (pot) B ND ND 30.0 31.5 j ND oH S ND ND 7. 8.1 ND B ND ND 7.9 8.3 ND DEPTH (ft) 5' 4' 8' 7' 71% GRAVEL 0 0 0 0 0 SUBSTRATE % SAND 89.8 89.6 70.2 75.8 68.6% MUD 10.2 10.4 29.8 24.2 31.4 ESTI',YA'FED HARD CLý,Al.DENSITY (#/ft-) 1.90 0.78 5.13 0.18 1.57%SL SL 4.1 2.6 8.8 4.0 9.5 COMMERCIAL 11.8 19.7 16.0 8.0 15.2 SIZES CS 14.1 21.1 47.4 16.0 21.5 CH 70.0 56.6 27.8 72.0 53.8 NUMBER CLAMS COLLECTED 380 78 513 35 157 SIZE RANGE (mm) 30-118 33-103 31-116 33-117 30-116 X SIZE (:u n 80.9 74.7 66.6 83.5 73.9% MORTALITY 12.8 36.1 23.4 2.7 5.9 ND-No Data A-84 TABLE 2 (cont.)SnELLFISH INVENTORY

SUMMARY

St. Georges Thorofare 1985'ATION NUMBER SG85-11 SG85-12 SG85-].3 SG85-14 SG85-15 QI2JITUDE N 02 0 ~ 2.0 0 0 0 T9 23.30' 39°23.40'

39 23.60' 39 23.60' 39 23.50'0ZGTDE wo 0 0W 74o24.70' 74024.60' 74023.90' 74 23.85' 74 23.95.'LLLECTION DATE 6/4/85 6/4/85 5 6/4/85 6/4/85 6/4/85 DE AND HOURS High + 1.0 High.+ 1.5 High + 2.0 High + 2.5 High + 3.0 MPERATURE AIR 22.0 22.0 22.0 22.0 23.0 Oc S ND ND ND 19.8 ND WATER ND ND ND 16.8 ND D.O. S ND ND ND 8.7 ND (ppm) B ND ND ND 5.6 ND[,.NITY S ND ND ND 310 ND (B.pt) ND ND ND 32.0 ND.HS ND ND ND 7.9 ND 8 ND ND ND 7.5 ND?TH (ft) 4' 4' 18' 21' 16'% GPRAVEL 0 0 0.2. 0 0 ISTRATE % SAND 81.4 88.6 11.0 14.0 15.0% MUD 18.6 11.4 88.8 86.0 85.0.IMATED HARD CLAM .0 ISITY 4(/ft) 2.65 2.03 f 0.02t% SL 10.4 4.1 33.3 ND ND IMERCIAL LNI_______ 21.3 13.3 0 ND ND.IZES CS IZES CS 30.1 39.5 66.7 ND ND CH CH 38.2 43.1 0 ND ND BER CLAMS COLLECTED 5__ _ _ _ _ _530 406 3 0 0 ..E (mm)30-111 30-114 35-68 ND ND IZE _mm) 69.1 74.7 56.7 ND ND ORTALITY 19.0 4.9 84.2 0 0 ID-No Data A-85 TABLE 2 (cont.)SSELLFISH INV-ENTORY SUIMMNARY St. Georges Thorofare 1985________________

$___85-16__ 1985-1 SG85-18_____ SG85-19_____ sG85-2(STATION NUILBER_________________ SC85-16 SG85-17 SG85-18 SG85-19 S(8-2(.-, LATITUDE N 39023.45' 39 23.50' 39 23.35' 39 23.25' 39 23.11 LONGITUDE W 0ý 0 0ý 0 74024.20' 74 24.30' 74 24.55' 74 24.60' 74 24.4C COLLECTION DATE 6/4/85 6/4/85 6/5/85 6/5/85 6/5/85 TIDE AND HOURS High + 4.0 High + 5.0 Low + 4.5 Low + 5.0 Low + 5.5 TEMPERATURE AIR 23.0 22.0 19.0 19.0 19.0 oC S ND ND 18.2 ND ND c WATER -B ND ND 17. 7 ND ND D.O. ND ND 8.2 ND ND (ppm) B ND ND 6.6 ND ND?A LI NIT Y S ND ND 31.5 ND ND (ppt) B ND ND 31.5 ND ND pH S ND ND 8.0 ND ND B ND ND 7.9 ND ND)EPfH (ft) 11' 16' 18' 16'

15'% GRAVEL 0.4 0 0 0 0

% SAND D 62.0 22.0 I 5.4 12.8 5.0 I .I'I UD _ 37.6 78.0 94.6 87.2 95.0 F.-IMATED HARD CLAM E(NSIT (/ft'-) 2.46 0.34 0.02 0 0.01 SL 5.3 6.9 0 ND 0 ORMERCIAL LN 16.5 3.4 25.0 ND 0 SIZES CS 48.2 48.3 0 ND 100 CH 30.0 41.4 75.0 ND 0 UMBLER CLAM.lS COLLECTED 172 34 4 0 2 IZE RANGE ( 30-100 32-94 50-110 ND 59-62 SIZE (. iIV) 67.3 71.6 92.0 ND 60.5 MORTALITY 13.1 15.0 33.3 100 0 ND-No Data A-86 TABLE 2 (cont.)SHELLFISH IN VENTORY SUMtMARY St. Georges Thorofarc 1985 AXTION NUMXBER SG85-21 SG85-22 dTITUDE N 39o).2C) 39 023. 10',NGITUDE W 74°24.55 ' 74°24.85'LLECTION DATE 6//5/85 6/5/85 DE AND HOURS High + 0.0 High + 1.0 MPEPRTURE AIR 19.0 19.0 oC S ND 17.2 WATER B ND 17.2 ND 8.8 B .ND 8.:8 (.,I B.HI8 l_________I_________ _______TND 31.0.p:pt) .B ND 31.0..H S ND 8.1 I ' "_____ _ j END 7.9__ _ _ _ 1_ _ _ _ _ _ _ _ _% GRAVEL 00 STRATE % SAND 52.6% MUD .90.8 47.4 INATED HARD CLAjvl SITY (#/ftZ) 0.06 0.03% .SL 0 0.4ERCIAL LN 18.2 33.3 IZES CS 36.4 66.7 CH 45.4 .0 3ER CLAMS COLLECTED 11 3 RANGE (mm) 38-94 55-68[7E (mm) 72.0 63.0)RTALITY 0 0-No Data TABLE 3 ST. GEORGE'S THOROFARE 1985 DENSITIES OF ORGANISMS COLLECTED BY HYDPAULIC CLAM DREDGE (#/sq. ft.)ORCAN ISM ST A.\T I 3__ _ -5 6 7 8 0 1_ _213_ _15 ) 1 1 -2 CULS S C.A-ýTRCPODA DusqIcOn crlallculdtum 001 0.01 0.01 0.01 Polinies d-1uplicJCuj 0.0 CI.ASS H IV2ALVIfA Anadar.3 ovalis 0.03 0.06 0.20 0.01 0.11 0.02 Anomia x Ensis diectuS 0M01 0.03 F017 0.03 0.02 0.01 0.04 1 MercenarLi Menrcenari j 0.58 1.24 00.51 1.0F 0.77 1.10 0,78 1 3. 0.18 1.57 -2.64 2.03 0.02 -2.46 0.14 ).02 0.01 0.06 0.03 H. mercenaria norita 0.01 0..2.,fa .arenaria 0.01 0.01 .Petr2cola pholadiforxis .G.01]Pitar morrOuanus 3.01 0.04 0.02 0.13 0.03 0.01 0.12 Ta7el-s plctlus 0.01 0.04 PlFIYLUý4 A8RTIIRrPCL)A CLASS MEROSTOMATA Limulus p0lypholus -0.02 0.03 .0.01 0.01 0.01 CLASS CRU!:TACEA I C-Ovalip eS ocolIjtus 0.01 Libinia e.n.arglnata 0.01-{ .} .-.4+ Presence (No estimate of'density) A-S88 StELLFISIh INVEiITORY SUMMAlRY Delaware. Bay Table 4 TATION NUMBER_DBSC86-1 -DBSC86-2 DBSC86-3 D_J2DSC i _4BSCaG\TITUDE N 39011.1' 39' 10.6' 390 10.2' 300 10.5 39 11.__GTUDE W 74059.,8 74059.7' 75 00.2' 75001.4 74 01.OLLECTIO DATE 4-2-86 4-2-86 4-2-86 4-2-86 4-2-8 IDE AD HOURPS Low + 4.25 Low + 4.5 Low + 5 Low + 5.5 High EMPETIJPTORE AIR ND ND ND WD __D.0C S C WATER ND NDQ. ND ND B__,_._ND ND ND MqD NDO D.O. S NQ ND ND ND___ ___.(ppm) B ND ND N N.NLINITY S N ND ND ND ND QI_.(p ... ND ND ND ND-_5 1!7 6 S ND ND ND ND Ti\n* ND himr B ND ND Nf GPRAE (Ft). 6-8 6-8 6-8 6-8 6--%GRAVEL ND ND ND DD MBSTRATE % SAND ND ND ND ND. ND--% MUD ND ND NF) ND ND;TIMATED HARD CLAM 3,SITY (4/ftj) 0.0008 0.0098 0.0195 0.00175 n nn......SL .0 ,o .n n 0 ..IfMMERCIAL LN 0 0 4.2 .,.0 0 SIZES CS 2 59 66.7 1 I00 CH .0 31 29.1 0 ....RBER CLAMS COLLECTED 2 32 _____4 ___ 4 ____ZE RANGE (mmi)Z___ANGE ________ 63-72 .55-RR 55-89 .69-75 63-a3 .SIZE (mmi 0 70.16 7n .71.7 76.MORTALITY_ _ _ _ _ _ 0 0 0 0 0 A- 89 SflELLrISII INVENTORY SUr,114ARY Delaware Bay Table 4 STATION DBSC86-6 86-7 DBSC86-8 16-9 1.i1'DBSC86-1 39 10. 8 LAT T.UDE Ii 39 80.8'39 11.3'39 11.4'39°1 LONGITUDE. W -0 0 0 0___________ _°75 00.1' 75 01.6' 75 10.2' 75 09.4' 75 09.COLLECTION DATE 4-2-86 4-2-86 4-3-86 4-3-86 4-3-8(91 TIDE AND T-inh +~ _r TRi ih -;- i -n High + 4.0.ND TEI1PERIATURE 0C AIR ND ND-.--.-t------ II S ND ND ND ND ND N.+ 4.5 ND ND Eigh-_ 5, ND ND ND D.O. S ND ND ND ND ND{ppin) ND ND ND ND ND SALINITY S ND, ND ND *"ND___ NO-..(ppt) ND ND ND ND ND FI! S ND ND, ND .D N .ND ND ND ND ND *DEPTH (ft)NQ ND in, 1 ' 7' -% GRAVEL*D.NDND NQ ND__..SUBSTRATE % SA DNQ.% HUD ND__ ____DND ND ND -_MD ESTIMATED HARD CLNA DENSITY (4/ft __ .0.0192 -0.00595 O.OOO 2 .0_fl26.SL 0 0 COMMERCIAL LN 2 ..0 1 00-SIZES Cs 70 0 CH 28 0 ---'IUMBER CLAM4S COLLECTED o50 0 22 NA 96 3IZE RANGE {mt} 55-85 NA (SI1ZE (mm) .7. ____________ .:

71.9-* -, 7 I MORTALITY_ _ _ _.__ _ _ _ _ _26.7 -7 5 A-90 SFIELLFISII INVENTIoRY SU, ,ARY Delaware Bay Table 4'ATION (f -DBSC86-12 DBSC86-13 DBSC8(5-14 L.3'DBSC86-15.39 11.8ILTUDE N 0 39 11.3'0*39 bA'0 C).39 1])_ _ _7ITUDE5 10.8' 75 08.0' 75 07.4' 75 06.9' 75 05.6'LLECTION DATE 4-3-86 4-3-86 4-3-86 4-3-86 4-3-86 UE AND HOURS High + 5.5 High + 6.0 Low Low + .75 Low-+ .75:11PERATURE AIR ND ND ND ND ND o S C WATER Nn
ND ND lID..BND, ND ND ND ND_..ND ND ND NQ ND (ppm) B ND ND ND ND.. ND.LINITY S ND ND ND NQ NQ (pptt) ND ND ND NDN ,N, ND NQ ND ND_B ND ND ND ND ND_.._ _ _ _ND ND ND ND *1 iD__i"" (ft) 17718 12' 9' 8' ND% GRAVEL.___._ ND NDQ ND ND ND BSTRATE % SAND ND ND ND ND ND MUD ND .ND ND ND rUMATED HARD CAMI USITY (#/ftI) .0.0022 0. o]005, 0-0n2P 0.0018 0 4MERCIAL SIZES SL If I & I LN CS -I -I I I -1 ________-CH A-BER CLAMS COLLECTED ,.,0 30 150 .?E RANGE (mrm)I1ZE (rmii)1ORTALI TY 9 3.2 rnq I r7 I, __________3_

.2 Al-'- A-91 SfIELLFISH1 IINVEII'rORy SUfmnARY Delaware. Bay Table 4 STATION NUMBER DRSC86-16 DBSC86-17 DBSC86-J18 DBSC86-19, .C8DBSC86-01 I U390 1.5 39 11.1' 10.4' 39 09.6' 39 08.9'LONGITUDE $1 -038 0 0 0 C)LONGITUDE. _ W_75O 03.__8 7574 58.4' 75 58.4' 75 58.5' 75 58.5'COLLECTION DATE 4-3-86 4-4-86 4-4-86 4-4-86 4-4-86 TIDE AND IOUPS ~Low + 1 25 High + 2.0 High + 2.5 High + 3.0 Hiqh +_3 TE4P E RAT URE AI R ND ND ND ND ND 0C S C WATER ND ND ND ND- -.D.D B...._____ND ND ND DN D.O. S ND ND ND ND --_.(ppm) ND ND ND ND, SALINITY S ND ND ND ND ND.(p)BND ND .. ND .ND ND ph ND ND ND ND ND B...._ND ND ND ND ND DEPTH (f t) 8-9 ND ND ND ND GRAVEL ND ND ND ND ND SUBSTRATE % SAND ND ND ND ND ND% MUD ND ND ND ND ND ESTIMATED HARD CLAM DENSITY 0 0.0006 0.00017 0.0036 0.005 SL L 0 COMMERCIAL LN .SIZES CS CII- -* __.7 CH.1U14BER CLAI.1S COLLECTED 1 4 15'IZE PANGE (mmn)SIZE (rmm) 50.7 k MORTALITY ._._9-50 56

2-N A-92 SRELLFISH INVENTORY SUWMMARY Delaware.

Bay Table 4_TION NUBER DBSC86-21 DBSC86-22 DBSC86-23 DBSCB6-24 D3R528-25..... .3 07.9' 39 07.4' 39°07.8' 39 04.8' 39 03.2'IGITUDE W -0 7458.5' 74'58.2' 7405,7.3' 74 56.1'ULECTI ON DATE 4-4-86 4-4-86 4-4-86 4-4-86 4-4-86 A O High + 4.0 High + 4.25 High + 4.5 Nigh 4- 'r Trow WPERATURE AIR ND ND ND ND ND csND ND.m D F WATER ND ND.B ND ND ND NQ ND SND ND ND ND ppn).B ND ND N ND .ND_ _N_ _ ND _..ND ND ND ppt) B ND ND ND N___ __.H ,_____. ND N) ND ND IND_ ND ND ND ND ND Tm (ft) 1i' 9' 9; ]' a',% GRAVEL% ND ND ND ND ND-STRATE % SAND ND ND ND NDN%MUD ND ND ND ND ND tMATED HARD CLAM.1TY 0.011 0.0086 0.0042 0.091 0.0012 SL 0 0 0 ,_-*IERCIAL LN 25 .-1 7 I[ZES CS 40 63.6 ., -3 _C. 3 5 -1 8 .2 9. -_,,_ _0_, -IER CLAMS COLLECTED 20 29 1 RANGE.(.u ....) 42-99 -_7 46-10R ZE (mm) 66.25 65.7 -84.9 ,RTALITY 51 42 62.5 6.9 50 A-93 SnELLFISH INVENTORY

SUMMARY

Delaware Bay Table 4 STATION. NUMBER DBSC86-26 DBSC E-27 DBSC86-28 DBSC86-29 DBSC86-3(LATITUDE 39N43 00__ _T __UDE _..... ..... ...___39' 04.3' 39 06.5' 39f. 00.9' 39 00.9' 39 01.7'.LONGITUDE W 740 554' 74054.4' 74057.3' 74057,3' 74058.1'COLLECTION DATE... 4-4-86 4-4-86 4-7-86 4-7-86 4-7-86 TIDE AND HOURS Low + .5 LOw + 1 High + 1.5 High + 1.75 High + 2.TEMPERATURE AIR ND ND ND ND ND 0C Si WATER ND ND ND ND B NDQ ND ND ND NQ D.O. S ND ND ND ND (ppm) B._______ND, ND ND ND. N SALINITY S ND ND ND ND_________ ____ ND NQ Ni) Nin pH S ND ND ND ND N)B ND ND ND ND NQ DEPTH (ft) 9' 8' 10' 10' ND% GRAVEL ND ND .ND ND ND SUBSTRATE SA.ND ND ND NQ ND NQ% MUD _ ND ND ND. ND ND ESTIMATED HARD CLAM DENSITY (4./ft, 0,.0061 i-nw nrlf-.r3 0.0018 0.0014 0.0014 SL 0_ _ _ _ _ __ __ _0 __ _ _ __ _ _ _COMMERCIAL LN*__ _ __ _ _ _ 1 00 -__ _ __ _ _ __ _ -__ _ _SIZES Cs___CH____ 100 100 NUMBER CLAMS COLLECTED 6 1 1 1 1 SIZE RANGE (m)...,SIZE -- 53 104 118 MORTALITY 14 50 50 50 91 A-94 SRELLFISH INVENTORY

SUMMARY

Delaware. Bay Table 4 TATION NUMBER DBSC86-31 DBSC86-32 DBSC86-33 DBSC86-345 \TITUDE N 0 0 0_39 03.1' 39 04-4 39 05.0' 39 05.5' 39 09.0'DNGITUDE w 74 59.8' 74° 59.6' 74 59.7.' 75°00' 75°01.5'JLLECTION DATE 4-7-86 4-7-86 4-7-86 4-7-86 4-8-86[DE AND HOURS High + 3.0 High + 3.5 High + 4.0 High + 4.5 High + .21"MPERATURE AIR ND ND ND ND N.C WATER ND ND NF) ND .ND B ND ND ND ND ND D.O. S ND ND ND ND Nn (ppm) B ND___ a ND MD ND ND. J kLINITY S ND ND ND N (ppt) B ND ND mn ND ND pH S ND ND ND ND: N ND ND ND ND NE:PTH (ft) Q0' 12-14' 12' 12' 1.3-14'%GRAVEL ND ND ND *ND N BSTRATE % SAND ND NQ ND ND ND H UD_____ND ND ND ND TIMATED HARD CLAM NSITY .ft.. 0-.0028 0,029 0.055 0.073 0.0065_ _SL 0. 0 4.3 .0 IERCIAL LN :.. 6.8 10.1 23 -f6 SIZES CS 50 0 3.6 4.8 17.4 CI 50 93.2 82.0 68.6-4IER CLAMS COLLECTED 44 138 92" ,E RANGE (m) 73-111 39-131 119 57-103;IZE (mm) 92:' 9.5 89 79.9 78.09 IORTALITY .50 6 8 2 2 2 SfIELLFISH INVENTORY SU.UMNARY STATION NUMBER DBSC86-36 DBSC86-37 DBSC86-38 DBSC86-39 DBSC86-4 LATITUDE39 06.0' 39 05.9' 39 06.7' 39 06.9' 39 07.1'LONGITUDE W 75 00.5' 75 01.0' 7501.2' 75 01.9' 75 01.0'COLLECTION DATE 4-8-86 4-8-86 4-8-86 4-8-86 4-8-86 TIDE AND HOURS High + 2.0 High + 2.5 High + 2.75 High + 3.0 High +3.5 TEMPERATURE AIR ND , N, ND NDN oC S ND ND ND ND ND WATER B ND ND ND ND ND D.O. S ND ND ND ND ND (ppm) B ND ND ND ND .NQ SALINITY S ND ND ND ND ND (ppt) B ND ND ND ND ND FH S ND ND ND ND ND B ND ND ND. ND ND DEPTH (ft) ,12-14 12 12 10 8-10% GRAVEL ND ND ND ND ND 3UBSTRATE % SAND ND ND ND ND ND% MUD ND ND ND\" ND ND.KSTIMATED HARD CLAM)ENSITY (#/ft ) 0.077 0.0084 0.067 0.055 ..12 S SL 0 0 0 1.0 0.7 LN 1.8 27.3 2.6 1.0 0 SIZES CS 1.8 18.2 7.8 7.8 0.7 CH 96.4 54.5 89.6 90.2 98.6 IUMBER CLAMS COLLECTED 110 22 77 102 147 IZE RANGE (num) 48-112 40-120 45-114 36-115 35-109 SIZE (mm) 89.3 71.6 1:i00 90 92.9 MORTALITY 18.5 18.5 45.8 18.4 18.3 A-95 SnELLFISH INVENTORY

SUMMARY

Delaware Bay Table 4 rATION NUMBER DBSC86-41 DBSC86-42 DBSC86-43 DBSC86-44 DBSC86-45\TIUD N0 00 k 39 10.2' 39 05.7' 3906.1' 39 08.0' 39 08.7')*ITD w" 0 0 AIGITUDE W 75"°02.2' 74 56.2' 74 56.4' 75 01.8 75 02.6')LLECTION DATE 4-11-86 4-11-.86 4-11-86 4-11-86 4-11-06 DE AND HOURS Low + 4.0 Low + 4.6 Low + 5.0 Low + 5.5 High'MPERATURE AIR ND ND ND ND ND SC s ND ND ND ND ND WATER B ND ND ND ND ND 0.0. 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 NDýPTH (ftQ 12 10-12 10-12 10-12 10-12% GRAVEL ND ND ND ND ND BSTRATE % SAND ND ND ND ND ND I MUD ND ND ND ND ND TIMATED HARD CLAM NSITY (4#/f z) -0._018 0._065 0._075 0._0124 SL 0 0 0 0 0 HMERCIAL LN 2.6 2.3 2.9 2.3 2.3 SIZES CS 55.3 27.3 47.8 25.9. 24.1 CH 42.1 70.4 49.3 71.8 73.6 4BER CLAMS COLLECTED 38 44 69 323 87 7,E RANGE (nvn) 50-92 45-94 41-1*04 40-101 50-114;IZE (.mm) 68.5 79.4 76.9 81.3 81.4 IORTALITY 66.4 44 41 5.3 4.4 A-96 SnELLFISH INVENTORY

SUMMARY

Delaware, Bay Table 4 STATION NUMBER DBSC86-46 DBSC86-47 DBSC86-48 DBSC86-49 o 0o0 LATITUDE N 39 09.3' 39 09.7'. 39 10.8' 39°10.5'0 0D .LONGITUDE W 75- 04.2' 75 02.4' 75 03.4' 75 04.1'COLLECTION DATE 4-11-86 4-11-86 4-11-86 4-11-86 TIDE AND OURS .High + .25 High + 1.0 High High + 2.0 TEMPERATURE AIR ND ND ND IN]D OC S ND ND ND 11D WATER -.-'_" B ND ND ND ND D.O. S ND ND ND ND (ppm) ND ND ND ND SALINITY S WD ND ND ND (ppt) B ND ND ND ND pH S ND ND ND ND B ND ND ND ND DEPTH (ft) 10-12 10-12 10-12 10-12% GRAVEL ND ND ND ND SUBSTRATE I SAND ND ND ND ND I MUD ND ND ND ND ESTIMATED HARD CLAM 0.422 0.207 0.047 0.106 DENSITY 0.4.2 0.20 0_.047 0.106 t SL 0 0 0 0 COMmERCIAL LN 5.6 2.6 12.5 3.1 SIZES Cs 35.6 24.4 41.7 46.4 CHI 58.8 73.0 45.8 50.5 NUMBER CLAMS COLLECTED 180 78 24 97 SIZE RANGE (mm) 46-100 41-100 50-95 42-99 SIZE: (mm). 75.4 80.6 66.9 72.2 MORTALITY 6.9 11.4 7.7 10.2 A-97 Table 5 Delaware Bay Inventory Associated Species by Station Location Species Stations Ensis directus Busycon canaliculatum Busycon carica Eupleura caudata Urosalpinx cinerea Polinices. duplicatus Limulus polyphemus Cancer irroratus Callinectus sapidus Tagelus plebeius Ovalipes ocellatus Anadara ovalis Libinia emarginata 5, 6, 10-13, 29-32, 34, 36-40 32-34, 37, 38, 42 24, 32-34, 37-39 5, 8-10, 12, 13, 31, 32, 35-40 10-12, 19, 21, 22, 24, 28-40 10, 17, 21, 22, 24, 32-40 28 28, 29, 34, 37, 40 33, 34, 40 33 ATTACHMENT B B-I TABLE 1.HARD CLAM RELAY PROGRA-M HARVEST

SUMMARY

YEAR HaRVEST AREA HARVEST CATCH PER EFFORT BY AREA (CLAMS/MAN/DAY) EFFORT'PER.AREA (NAN- DAYS TOTAL ANNUAL RELAY HARVEST SHARK SHR 62,150 807 77 RIVER 5,144,862 1985 MANASQUAN 227,458 1,223 186 RIVER NORTHERN MONMOUTH 4,855,254 1,435 3,646 COUNTY *SHARK RIVER 153,050 963 159 RIVER MANASQUAN RIVER 169,444 1,255 135 RARITAN BAY 22,343 1,675 13.34*(SEC. 11)SEC. 1 46,703 1,445 32.33 0 o. SEC. 2 69,859 1,456 47.99> SEC. 10 258,673 1,433 180.50<,.. TOTAL M, 375,235 1,439 260.82 SHB ..2 8 1986"* 2,422,730** SEC. 4 50.5,692 1,420 356.18 wSEC. 5 292,008 1,397 208.99% SEC. 6 123,026 1,516 81.15TOTAL SAVESINK 920,726 1,425 646.32 SHREWSBURY RIVER 687,732 1,355 507.52 (SEC. 3)NO DATA 94,200 .1,256 .75 1986.-** TOTAL 2,422,730 1,348 -1,797* Includes areas in Raritan and Sandy Hook** January 1 -June 30, 1986 Bays and Navesink and Shrewsbury Rivers. __DESIGNATED NORTHERN MONMOUTH _-_**/ \COUNTY SECTIONS FIGURE 1 L, -' ~~~~~ ~7 ...2" "3 EFFECTIVE JUNE 23, 1986o / .. .. .. ;,.a .... 44. ...* ...... 44\.-" 3 -' , (. P',-, '....3\ : , -, , -, , .; ../ , ' .... .. .. ' r ,,..1 FL sc~ ....>. .. .--- ,--.33-,\ t " ," ,, , -33: 44..4 -.. .. ..-......" 1... ..-. "-L.-~ E3 231 HIGHLANDS BRIDGE -.. ....... ---- --.' "r n n" "- , --CHANNEL V.7, 43"- FL 4 4 se.-'. ,.LINE EXTENDS -- .,:,- -.ALONG PIER ENDS ,, ."' ... L-.-2' , ,e _": , ..' , , ' --'3. " .44-.4.. 43._ 3...~3 .33. ' * .!. s ' -I~ r -A / -I V i_- r-i-x- / ',; .' -""\ _.34J ,q A '-..' *... .. .... 23"-f_43 , .., .- :- I '-SANDY~~~~~~~~ HO ---4.1'~ "'CEANIC /LIGHTHOUSE V.-I" ' 34 -3 R I.D-N G, E'.,..-;. c) --\ .. .0 \- I-: "I"".LIE DESCRIPTION' N 3,,. , 0L ,.34.-" \ ;.. .. ......R I , R"I' , R`6% TO LAND .,. "' O E N C,*,",-."" -- -- -.. ... .-,3* .---' " " .* .....' -,3. 4 ...., 1',~ 3, 44"': " ... .K.: 6. .4 E1-6, High( R 11401 FL R 4 sec...30 .4 ,/4 * " t'.,3 °' ?, ,444 ~-4~ 9 .4.~ 3~ McCLEES CREEK*.N EO PT..FISH,GAME AND WILDLIFE RT. 35. BRIDGE 4 ES1A PCILRSRCE MARINE ENFORCEMENT UNIT SASOALLSPECIAL REST JUN4E 1 THRU AUGUST 31 o3,~C O M E M"NE D ..... ..........3 S EPT E WBE~ R THFU M/AY 31 \'.... .... ..........4 ...'...... r,.3 3........4. E W S T ." 443 .4;. ':" -=344...'/ \..... FIGURE 1 DESIGNATED HARD&SOFT CLAM DEPURATION &RDSR RE LAY .FA EFFECTIVE SEPTEMBER 2,1986 2' 21 24~t"______________________ 2' -2'I-21 2' 3 A 7 FISH, GAME AND WILDLIFE MARINE ENFORCEMENT UNIT 609-441-3474 .10 22 ~ © ~-~-22'2 0,) 22LINE DESCRIPTION: L1R 2, R'4, R`6% TO LAND 9 3 13 21 NOTE: SECTION l1E AVAILABLE FOR LIMITED HARVEST: SEPT. 2, 1986 THROUGH SEPT. 30,1986 ONLY , II ESTUARINE WATERS PROHIBITED FOR , LJ',"HARVESTING IN DEPURATION AND RELAY PROGRAMS FIGURE 1'AAsZ S" "ANm RInVER.HARD CLAM. RELAY EFFECTIVE DECEMBER 16 1985 54 5 53 ., l hrd S S *C 41 ' MARINE ENFORCEMENT UNIT Ptr'v mointd 43 4b- 609 -441 -3474 46 50 50\, 5 2 /,8 4F.38 37 */41\ 404 "" yri manft 0 ---- 32 39 y_ ----1-3 ; .3.... .... .. 2 U, 12intfle as ant;B.".ies on i ý;, TANK., Pont PI as n.A T .C ea::lOO00.foot4-hF7 f'$o-)Ih (. : ) T A N ......... .... .RE. T .0 F T ...... ? ~~ ALItTH~d:. 'T .'Li .. ........." gr.le i I- I A"ý2ý"p 2 : TAN 0, , 7A' 0......116 ... .....o.r......, :.io.:i-': PXi' TAN.. .. " i i"::...:..:

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.

1986 HARD CLAM RELAY DESIGNATED.SHARK RIVER SECTION FIGURE 1 EFFECTIVE FEBRUARY 3 1986 F .. .C.'.C POINT PLEASANT SCOLRGS-. DE CA BD MARINE POLICE":: ' ," :'.:' ":" 80.320a .."(Se note A) r odle .y Beach Sylvan Hol CL 90 4 F \\ 0 89... ..... .:;,: L k .: .,.::. 201 -899 -505G I SHARK RIVR Cable Are..BUREAU. OF..on SHELLFISHERIES SI-HA RK RI IV ER "/A 6941-38 SCAL 1;2000 8 609-441-3284 NA CAL MILES ýAV --- --- fB asin .Belmar 12\8 FIXED BRIDGE & A1CU11 all0.,...3 W :IT L a FT W It(a. " 3 Ne Area d C L .; I"' ......40.',.,.. u .. .\.1 ., _::IP1 hWN CH14N L-M .p ,-z 4.* " .'M ;Pat,'/'i-: -4 3.: ,'1. 7 B a " ..iii 7 -1/o '# 3 ... ýý 2 3" Al 2.... ...f d', ... Romp,.rha r i 37:,tplln 2eoh 17'dwdh.o~i0 el.. : Basi .': 1 :13" 50 et to the Municipal Boat Basin.5. "ý .A Sept. 1979-Apr. 98 2 %" "

New Bedforid'::..

"..o.. "..l -. ..-:. : .-,. .L:U .}}

v t e Letter Sequence Other
TAC:MC7624, (Approved, Closed)
Initiation Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request Acceptance Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement, Supplement Administration Withholding Request Acceptance, Withholding Request Acceptance Meeting, Meeting, Meeting, Meeting, Meeting Questions 24 February 2006 28 December 2005 5 January 2006 10 March 2006 20 March 2006 10 March 2006 20 March 2006 20 March 2006 30 March 2006 30 March 2006 30 March 2006 20 April 2006 5 June 2006 11 August 2006 Answers 9 December 2005 26 January 2006 3 February 2006 7 April 2006 7 April 2006 18 April 2006 18 April 2006 18 April 2006 26 April 2006 28 April 2006 1 May 2006 3 May 2006 9 May 2006 15 May 2006 2 May 2006 18 April 2006 18 April 2006 26 April 2006 18 April 2006 12 June 2006 7 April 2006 1 May 2008 5 May 2008 Results Approval Other: ML052690388, ML052850300, ML060200084, ML060320211, ML060370508, ML060410649, ML060600122, ML060660177, ML060690026, ML060690130, ML060830564, ML060830567, ML060870126, ML060870147, ML060890080, ML060930255, ML060940146, ML060950408, ML060960563, ML060960568, ML060960602, ML061010639, ML061010644, ML061010646, ML061020614, ML061020616, ML061020638, ML061030419, ML061070304, ML061070306, ML061070307, ML061070309, ML061070310, ML061070319, ML061070321, ML061070329, ML061070395, ML061070398, ML061070399, ML061070403, ML061070429, ML061070430, ML061070432, ML061150320, ML061150330, ML061160161, ML061380647, ML061420086, ML061420088, ML061420089... further results
MONTHYEAR2002-05-15 [Table View]

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