By Laurence E. Schemel, Allan Y. Ota, Jerry G. Harmon ... · Johnevan M. Shay, and Richard M....

BENTHIC MACROFAUNA AND ANCILLARY DATA FOR

SAN FRANCISCO BAY, CALIFORNIA, JANUARY TO NOVEMBER 1988

By Laurence E. Schemel, Allan Y. Ota, Jerry G. Harmon, Johnevan M. Shay, and Richard M. Adorador

U.S. GEOLOGICAL SURVEY

Open-File Report 89-596

Prepared in cooperation with theCALIFORNIA STATE WATER RESOURCES CONTROL BOARD

CO

ICTi

O ro

Sacramento, California 1990

DEPARTMENT OF THE INTERIOR

MANUEL LUJAN, JR., Secretary

U.S. GEOLOGICAL SURVEY

Dallas L. Peck, Director

For additional information write to:

District Chief U.S. Geological Survey Federal Building, Room W-2234 2800 Cottage Way Sacramento, CA 95825

Copies of this report may be purchased from:

U.S. Geological SurveyBooks and Open-File Reports SectionBox 25425Building 810, Federal CenterDenver, CO 80225

CONTENTS

PageAbstract .......................................... 1Introduction ........................................ 2

Benthic macrofauna stations ............................ 4Acknowledgments ................................. 4

Study design and methods ................................. 5Benthic macrofauna and ancillary data .......................... 6

Species and numbers data .............................. 6Ancillary data .................................... 8Sediment grain-size analyses ............................ 8Persistence of Potamocorbula amurensis ...................... 9

Summary .......................................... 9References cited ...................................... 10

ILLUSTRATION

Page Figure 1. Map showing location of sampling stations in the Regional Effects

Monitoring Program ............................. 3

TABLES

PageTable 1. Regional Effects Monitoring Program stations ................. 2

2. Cruise names and dates, 1988 .......................... 53. Benthic macrofauna data ............................ 114. Summary of benthic macrofauna data ...................... 515. Ancillary data .................................. 596. Summary of sediment grain-size data ...................... 637. Cumulative number of species with respect to number of replicates ...... 64

CONTENTS

CONVERSION FACTORS

Metric units are used in this report. For readers who prefer inch-pound units, the conversion factors for the terms used in this report are listed below.

Multiply By To obtain

cm (centimeter) 0.3937 inchkm (kilometer) 0.6214 milem (meter) 3.281 footm2 (square meter) 10.76 square footmm (millimeter) 0.03937 inch

TRADE NAMES

The use of brand or trade names in this report is for identification purposes and does not imply endorsement by the U.S. Geological Survey.

IV CONVERSION FACTORS AND TRADE NAMES

BENTHIC MACROFAUNA AND ANCILLARY DATA FOR

SAN FRANCISCO BAY, CALIFORNIA, JANUARY TO NOVEMBER 1988

By Laurence E. Schemel, Allan Y. Ota, Jerry G. Harmon, Johnevan M. Shay, and Richard M. Adorador

ABSTRACT

Benthic macrofauna and ancillary data were collected during 1988 as part of the U.S. Geological Survey Regional Effects Monitoring Program in San Francisco Bay, California. Data were collected during six cruises at 2-month intervals from January to November. Benthic macrofauna for identification and counting of species and sediments for size analysis were collected at eight stations. Temperature, salinity, and concentrations of dissolved oxygen and suspended sediment were measured at 12 stations. Salinity was measured at three stations that coincided with continuous monitoring stations.

The percentage of benthic macrofauna specimens that could be identified to the species level varied among sampling stations. Based on annual averages at each station, this percentage ranged from 60 to 95 percent. Three or fewer species represented from 25 to 75 percent of the total number of specimens at all stations. This percentage changed over time, as did the species. The annual average number of species per sample ranged from 4 to 21. Stations in the southern bay were typically higher in number of species and number of specimens per sample than those in the northern bay. The newly introduced species of clam, Potamocorbula amurensis, persisted as an abundant species in the northern bay, and became more abundant at all stations in the southern bay except one.

ABSTRACT 1

INTRODUCTION

The U.S. Geological Survey began regular data collection for the Regional Effects Monitoring Program in 1987 and continued data collection for this program through 1988. The program was done in cooperation with the California State Water Resources Control Board, which developed the program as part of a plan for assessing effects of pollutants on the biological resources of San Francisco Bay. The major objective of the program is to detect long-term trends in selected biological and chemical properties by establishing a consistent and reliable data base. Data collected during the first few years will help evaluate variability caused by natural factors. This is necessary in order to identify long-term trends. This report presents data from the second year of the program.

Data collection during 1988 was limited to the benthic macrofauna and ancillary data components of the program. Measurements included in the ancillary data component were selected to characterize major changes in the physical and chemical environment that affect benthic macrofauna. Fifteen stations were sampled at 2-month intervals from January through November (table 1, fig. 1). Ancillary data, which consisted of measurements of salinity, temperature, and concentrations of dissolved oxygen and suspended paniculate matter, were collected at 12 stations. These included the eight stations where samples were collected for benthic macrofauna and sediment grain-size analysis. Salinity was measured at three additional stations (stations 3,7, and 9), where it is monitored continuously.

Table 1. Regional Effects Monitoring Program stations

[Ancillary data were collected at all stations. An asterisk (*) indicates stations where benthic macrofauna and sediment data also were collected]

Station No. (fig. 1)

*123

*4*5*6

7*8

9*10*11

12*13

1415

Station name

Palo AltoRedwood CreekSan Mateo BridgeCoyote PointSouth Bay DeepSan LeandroBay BridgeBerkeleyPoint San PabloSan Pablo ShallowSan Pablo DeepSuisun BayGrizzly BayHonker BayChipps Island

Latitude north

37°27.80'37°33.25'37°35.00'37°36.30'37°41.20'37°39.57'37°47.50'37°52.43'37°57.87'38°03.75'38°02.67'38°03.12'38°06.97'38°03.80'38°02.80'

Longitude west

122°04.90'122°11.44'122°22.00'122°18.65122°19.28'122°14.17'122°23.00'122°21.20'122°25.72'122°24.40'122°18.93'122°06.63'122°02.33'121°58.00'121°55.00'

2 BENTHIC MACROFAUNA AND ANCILLARY DATA, SAN FRANCISCO BAY, CALIFORNIA

I 2 2° 45'

Sampling station and number

Base from U.S.Geological Survey, Santa Rosa, 1970 San Francisco, 1971, 1:250,000 series, California.

T ' r20 25 KILOMETERS

Figure 1. Location of sampling stations in the Regional Effects Monitoring Program.

INTRODUCTION 3

Benthic Macrofauna Stations

Palo Alto (Station 1) is in shallow water on the west side of southern San Francisco Bay, south of the Dumbarton Bridge in a large area that appears relatively uniform in the type of substrate. This station is about 1.5 km east of a transect of three intertidal stations that were studied by the U.S. Geological Survey for changes in benthic macrofauna community structure for about 14 years (Nichols and Thompson, 1985a).

Coyote Point (Station 4) is in shallow water on the west side of the deep channel in southern San Francisco Bay, north of the San Mateo Bridge. The National Oceanic and Atmospheric Administration Status and Trends program occupies a station annually that is north of this station near Hunters Point.

South Bay Deep (Station 5) is in deep water east of the dredged channel in southern San Francisco Bay. This station is about 2.7 km west of a major municipal waste outfall. Finding a suitable location for a deep water station in the southern bay is difficult because of dredging, locations of pipelines and anchorages, and major municipal waste outfalls.

San Leandro (Station 6) is in shallow water on the east side of southern San Francisco Bay, north of the San Mateo Bridge. This station is in a large area of shell debris, and replicate samples exhibit greater variability in substrate type than at most other stations. For example, some samples show exposed shell debris, whereas others are primarily mud.

Berkeley (Station 8) is in a broad, relatively uniform area in central San Francisco Bay, west of Berkeley. This station is southeast of a Status and Trends station in the area of the Southampton Shoal channel, and is north of a Mussel Watch station and a major municipal waste outfall. This station represents the most typically marine environment sampled by the program.

San Pablo Shallow (Station 10) is in a broad, relatively uniform area in shallow water on the west side of the deep channel in San Pablo Bay. It is north of a deeper water station that was sampled by the National Oceanic and Atmospheric Administration in their Triad studies.

San Pablo Deep (Station 11) is on the east side of the deep channel west of the Status and Trends station. This deep water station in San Pablo Bay typically exhibited variability in substrate type and the presence of unconsolidated debris. In spite of these problems, this station was sampled during 1988 so that the persistence of the newly introduced clam, Potamocorbula amurensis, could be monitored.

Grizzly Bay (Station 13) is adjacent to a station that has been sampled monthly since 1980 by the California Department of Water Resources as part of D1485 monitoring. Grizzly Bay provides overlap between the two programs. The Department of Water Resources program extends landward to locations in the delta of the Sacramento and San Joaquin Rivers.

Acknowledgments

The authors wish to thank Brian T. Yost for assistance with data collection and processing and Janet K. Thompson and Frederic H. Nichols for much helpful advice and assistance with quality control of the benthic macrofauna data.


STUDY DESIGN AND METHODS

Samples for benthic macrofauna and Table 2. Cruise names and dates, 1988 ancillary data were collected during six cruiseson the U.S. Geological Survey Research Cruise name Sampling datesVessel, R/V Saul E. Rantz (table 2). The dates of the sampling cruises were selected to fallwithin the neap tides of the month. At these JAN88 January 11-14times when tidal currents were weak, the wire \/r A DOO \/r^^u -70 1 A 1 <angle was nearly vertical, the benthic sampler MARKS March 7, 8, 14, 15landed squarely on the substrate, and the area MAY88 May 23, 24, 25, 26, 31that was sampled varied little among the JUL88 July 20, 21, 25, 26, 27, 28replicates. Weather was a major factor, SEP88 September 12-14, 15particularly wind, which created swells and NQV88 Qctober 31 _ November 2 3consequently boat motion during sampling.Under these conditions, the sampler could notpenetrate the substrate or operate correctly. Consequently, no samples could be collecteduntil the wind subsided.

Samples were usually collected at stations 12 through 15 on the first day, at stations 7 through 11 on the second day, at stations 2 through 6 on the third day, and at station 1 on the fourth day. Exact locations of the stations were selected so that they could be relocated easily by the use of radar and navigational aids. Station locations were confirmed by loran c.

Benthic macrofauna were collected with a modified Van Veen, which sampled an area of 0.05 m2. Depth of penetration of the sampler varied with substrate type. Soft substrates were sampled to a depth of 15 to 18 cm, whereas penetration of hard substrates was often limited to 7 to 10 cm. Six samples were collected at each station; five were for benthic macrofauna analysis and one was for sediment grain-size analysis. The sample for grain-size analysis was subsampled from the consolidated sediment just below the surface layer but above the redox discontinuity.

Benthic macrofauna samples were washed on a 0.5-mm mesh screen to remove the fine sediment. Macrofauna and debris were transferred to plastic jars, where organisms were relaxed with propylene phenoxytol, then preserved in a buffered formalin solution (10 percent). After 4 to 7 days, samples were washed to remove the formalin solution, then transferred to a 70 percent solution of ethyl alcohol.

Water samples were collected at eight stations where samples for benthic macrofauna were collected and at seven additional stations. The seven additional stations enabled better characterization of the salinity field and chemical-physical environment of the estuary. Three of these additional stations (3,7, and 9) were at locations where temperature and specific conductance were monitored continuously. These monitors were installed by the California Department of Water Resources and are now operated by the U.S. Geological Survey. Samples collected at these stations during the Regional Effects Monitoring cruises provided a link between Regional Effects Monitoring data and data from the monitors. Data from the monitors are needed to evaluate changes in the environment of the estuary between Regional Effects Monitoring cruises.

Samples for salinity analysis were collected at the three locations with continuous monitors. Samples were collected at the remaining 12 stations as part of the ancillary-data collection. Near-surface water (1m) was sampled with a Niskin Bottle from which two dissolved-oxygen samples, one salinity sample, and a sample for suspended paniculate matter were drawn. When water depths exceeded about 3 m, a deeper water sample, about 1 m above the bottom, was collected in an identical manner.

STUDY DESIGN AND METHODS 5

Samples for dissolved oxygen were collected in glass-stoppered iodine flasks, immediately preserved with 1-mL aliquots of manganous sulfate reagent and alkaline iodide-azide reagent, then shaken. Samples were kept cool and out of direct sunlight. A small quantity of distilled water was placed in the flange of each flask to ensure the seal of the ground glass stopper. Laboratory and field tests indicated that the titration of the dissolved- oxygen samples could be delayed for at least 1 week when the above procedures were followed.

Salinity was determined with a high precision laboratory salinometer calibrated with standard seawater. Salinity was reported without the traditional units, in accordance with the practical salinity scale of 1978 (Lewis, 1980). Dissolved oxygen was determined by the Winkler titration method (azide modification; American Public Health Association, 1985). Suspended paniculate matter in a known volume of sample was collected on a tared membrane filter, dried, and weighed to determine the concentration. Sediment samples were analyzed for grain size by the wet-sieve and hydrometer method (Guy, 1969).

Kinnetic Laboratories, Inc. of Carlsbad, California, was contracted to provide identifications and counts of macrofaunal species. Identifications were made to the species level or the lowest possible taxon. U.S. Geological Survey experts in the field of benthic ecology, Janet Thompson and Frederic Nichols, provided a final check on the quality of the benthic macrofauna data.

BENTHIC MACROFAUNA AND ANCILLARY DATA

Identifications of benthic macrofauna to the lowest possible taxon, usually genus and species, are shown in table 3. Table 4 is a summary of these data showing the numbers of taxanomic entries, species, and individuals for each replicate, station, and date. Ancillary data are presented in table 5, and sediment grain-size data are presented in table 6.

Species and Numbers Data

The data presented in table 3 can be summarized by various biological indexes. The number of species and the number of individuals within each species are key biological properties that commonly are used in the calculation of indexes, such as diversity indexes, which summarize the community characteristics. Selection and use of indexes to summarize benthic macrofauna data is a subject of controversy among ecologists, but they generally agree on the need for sample replication to provide results that are statistically valid (Green, 1979). In this study, a level of replication was selected that, based on the experiences of previous investigators, should collect most of the species and provide sufficiently accurate estimates of their abundances.

Five replicates were collected at each station, but on two occasions only four of the replicates passed our quality control (see table 3). The cumulative number of species collected with respect to the number of replicates is shown for each station and sampling cruise in table 7. Almost all species that were abundant in high or moderate densities (numbers per unit area) were present in all five replicates. When specimens of a species were collected only in the fourth or fifth replicate or both, density of that species was typically low (only one or two individuals from all five replicates). Only 3 of the 183 species that were collected only in the fourth or fifth replicate or both had densities equal to or exceeding an average of one specimen per replicate. Relative to the total numbers of species collected in all five replicates, an average of about 80 percent were collected by the third replicate and about 90 percent were collected by the fourth replicate at all of the stations. The percentages were highest at Palo Alto, where an average of 95 percent of the species were collected by the third replicate, and they were lowest at San Pablo Deep, where an average of 74 percent of the species were collected by the third replicate and 85 percent by the fourth replicate.


Identification of benthic macrofauna to the species level is necessary for the characterization of the community structure and for the calculation of some indexes. For various reasons, some individuals will not be identified to the species level. The percentage of the total individuals that was represented by specimens that were identified to the species level varied greatly among stations in this study. On the average, about 95 percent of the individuals could be identified to the species level at Palo Alto. This percentage was about 90 percent at Coyote Point, about 80 percent at South Bay Deep, about 70 percent at San Leandro, and about 60 percent at Berkeley. In the northern bay, the greatest percentage of individuals usually were identified to the species level at Grizzly Bay (about 95 percent), followed by about 90 percent at San Pablo Shallow and about 80 percent at San Pablo Deep. In most specimens, lower percentages were the result of moderate to high numbers of oligochaetes or nematodes, or both, and other organisms including an unidentified authozoan at South Bay Deep and Phoronsis sp(p) at Berkeley.

In general, the abundances of one or two species (dominant species) represented a large percentage of the total number of individuals, followed by as much as three or four species with abundances of one-half or less those of the dominant species. The percentage of the total abundance represented by the dominant species varied with time, as did the species that were dominant. Fifty to more than 75 percent of the individuals at Palo Alto were represented by two species, Gemma gemma and Ampelisca abdita. One-half of the individuals at Coyote Point and South Bay Deep were represented by two crustaceans, Ampelisca abdita and Corophium sp(a), and two polychaetes, Exogone lourei and Asychis elongata. On most dates, one of these species represented 25 to 50 percent of the individuals. At San Leandro, 25 percent of the individuals were represented by the mollusk, Musculista senhousia, or the crustacean, Ampelisca abdita. In general, Berkeley exhibited a large number of species with relatively low densities (see below). However, a single crustacean, Ampelisca abdita or Corophium sp(a), represented more than one-half of the individuals during three of the six sampling times. Fifty to more than 75 percent of the individuals at San Pablo Deep were represented by the newly introduced species of mollusk, Potamocorbula amurensis, or the crustacean, Corophium sp(a). About 50 percent of the individuals at San Pablo Shallow were represented by Ampelisca abdita during three sampling times and by the newly introduced mollusk, Potamocorbula amurensis, during May, July, and September. Potamocorbula amurensis represented more than 75 percent of the individuals at Grizzly Bay during all sampling dates.

Differences in the mean numbers of species and the mean numbers of individuals were observed among the stations. These differences were generally consistent over time, so the following discussion was based on annual means for numbers of species and individuals per sample. Lowest numbers of species (4 to 6) were observed at Grizzly Bay and at San Pablo Deep. Moderate numbers of species (12 to 15) were observed at Berkeley, San Pablo Shallow, and San Leandro. High numbers of species (18 to 21) were observed at Coyote Point, Palo Alto, and South Bay Deep. Palo Alto exhibited the greatest number of individuals, more than a factor of three higher than the next highest stations, Coyote Point, San Leandro, and San Pablo Shallow. Lowest numbers of individuals were observed at San Pablo Deep, followed by Grizzly Bay, Berkeley, and South Bay Deep. The mean number of individuals at South Bay Deep was about one-half that at San Leandro or Coyote Point.

Differences in the numbers of species and numbers of individuals among the replicates are expressed here as the coefficient of variation, the standard deviation divided by the mean. The values were averaged for the six sampling dates to provide a mean coefficient of variation for comparisons among stations. Mean coefficient of variation for species was lower than mean coefficient of variation for individuals at all stations. The lowest mean coefficient of variation for species and individuals were observed in the southern bay at Palo Alto (0.10 and 0.17, respectively), and in the northern bay at San Pablo Shallow (0.12 and 0.24, respectively). Low values also were typical at Coyote Point, Grizzly Bay, and South Bay Deep. The highest mean coefficient of variation for species was at San Pablo Deep (0.41), and highest mean coefficient of variation for individuals was at Berkeley (0.70). Coefficients of variation among replicates were consistently high for these two stations, although one or two outlier values were often the cause of a high coefficient of variation at any one sampling time.

BENTHIC MACROFAUNA AND ANCILLARY DATA 7

A major goal of the Regional Effects Monitoring program is the detection of long-term trends in the abundances and community structures of the benthic rnacrofauna. Analysis of the data for trends is not possible at this time. Data from many years are required to distinguish trends, primarily because natural variability results from annual and semiannual cycles of climate and reproduction (Nichols and Pamatmat, 1988).

Ancillary Data

Ancillary data collected with the benthic rnacrofauna samples characterize changes in environmental conditions in the estuary. Northern California experienced a second consecutive year of less-than-normal rainfall during 1988. Rainfall is seasonal in northern California, with most occurring from late autumn through early spring. Inflow of fresh water from runoff is a major factor affecting salinity in San Francisco Bay (Dedini and others, 1981). Dilution by freshwater inflow generally results in lower than average salinities through about May or June. Effects of freshwater inflow on salinity vary with location in the estuary. The upper reaches of northern San Francisco Bay, including Grizzly Bay, are most affected by seasonal variations in freshwater inflow from the Sacramento River and San Joaquin River. Similarly, salinity at Palo Alto can be greatly reduced by runoff from local streams.

Salinities measured at Grizzly Bay and Palo Alto during the winter and spring of 1988 were greater than values measured during 1980, a year with a normal amount of freshwater inflow (Dedini and others, 1981). The effect of low levels of freshwater inflow on salinity was greater at Grizzly Bay, where values ranged from 4.1 in January to 12.5 in July 1988. In contrast, salinities were less than 1 from January through May 1980, then reached a maximum value of about 7.6 during September (Dedini and others, 1981). Previous investigations have shown that similar increases in the salinity at Grizzly Bay affect the species composition of the benthic rnacrofauna (Nichols and Thompson, 1985b; Nichols and Pamatmat, 1988).

Dissolved oxygen was saturated at levels exceeding 80 percent in 75 of the 76 samples. Dissolved oxygen was above 90 percent saturation in 57 of the samples, and exceeded saturation in 5 samples that were taken in southern San Francisco Bay during March.

Sediment Grain-Size Analyses

Substrates at all the stations sampled for benthic rnacrofauna are classified as soft bottom substrates. San Leandro differed somewhat from the others because a large amount of shell debris was present in the mud. The shell debris generally was larger than 1 mm, and as a consequence it was not quantified in the sediment grain-size analysis.

Differences among the sediment grain sizes at the stations are shown in table 6. San Leandro, Coyote Point, Grizzly Bay, and Palo Alto were similar in that about 50 percent of the sediment typically was finer than 0.004 mm. San Pablo Shallow and Berkeley were similar in that about 50 percent of the sediment typically was finer than 0.008 mm, although grain sizes were somewhat more variable at Berkeley. The two deep stations, San Pablo Deep and South Bay Deep, were distinctively different from the others in that they exhibited greater variability in grain-size distributions and the sediments generally were coarser (larger grain size). Greatest variability in sediment grain size was observed at San Pablo Deep. The results from the sediment grain-size analyses for 1988 were consistent with those for 1987 (Schemel and others, 1988).


Persistence of Potamocorbula amurensis

By reviewing available taxanomic literature, Dr. James T. Carlton of the University of Oregon has determined that the probable genus and species of the newly introduced clam is Potamocorbula amurensis. It is possible, however, that synonyms might exist.

The spread of the new species of clam shortly after its introduction was documented during the first year of sampling of this program (Schemel and others, 1988). Data collected during 1988 show that this new species persisted as a dominant species in northern San Francisco Bay and became more abundant in areas of southern San Francisco Bay. Because of low levels of freshwater inflow during 1988, Potamocorbula amurensis has not experienced a normal seasonal range of environmental conditions at locations in the northern and southern bays.

Greatest densities (abundances per unit area) of the new clam during 1987 were observed at Grizzly Bay and San Pablo Deep (Schemel and others, 1988). Although densities at these locations during 1988 were lower than the maximum densities during 1987, examinations in the laboratory have indicated that specimens generally were larger in size during 1988 (J.K. Thompson, U.S. Geological Survey, oral commun., 1988). Specimens were found in all replicates collected at Grizzly Bay and in all but one replicate collected at San Pablo Deep during 1988. Densities of the new clam during 1988 were greater than those during 1987 at the other stations with the exception of San Leandro, where no specimens were collected during 1987 or 1988. Lowest densities, typically about one specimen or less per sample, were found at South Bay Deep and Berkeley. Densities increased during 1988 at Coyote Point and Palo Alto. Specimens were found in all but one replicate collected at Coyote Point, where densities averaged about 40 specimens per sample during September and November. Specimens were found in all replicates collected at Palo Alto beginning in May. Average density increased to a maximum value of 65 specimens per sample in November at Palo Alto. Specimens of the new clam have been found in every replicate collected at San Pablo Shallow since July 1987. Average density at San Pablo Shallow reached a maximum of 455 specimens per sample in May 1988.

SUMMARY

Sampling was continued for the Regional Effects Monitoring Program in San Francisco Bay during 1988. Samples for benthic macrofauna, sediment grain size, and ancillary data were collected during six cruises at 2-month intervals beginning in January. Benthic macrofauna were identified to the species level or the lowest possible taxon and counted. Eight stations were sampled for benthic macrofauna and sediment grain size during each cruise. At each station, five replicate samples were collected for benthic macrofauna, and one sample was collected for sediment grain-size analysis. Ancillary data, consisting of salinity, temperature, and dissolved-oxygen and suspended-sediment concentrations, were collected at 12 stations, including the 8 stations where benthic macrofauna samples were collected. Salinity was measured at three stations that coincided with continuous water-quality monitors. Benthic macrofauna data showed the persistence of the newly introduced clam, Potamocorbula amurensis, at stations in the northern bay, and increasing densities at all stations except San Leandro in the southern bay.

SUMMARY 9

REFERENCES CITED

American Public Health Association, 1985, Standard methods for the examination of water and wastewater, 16th ed.: Washington, D.C., p. 413-419.

Dedini, L.A., Schemel, L.E., and Tembreull, M.A., 1981, Salinity and temperature measurements in San Francisco Bay waters, 1980: U.S. Geological Survey Open-File Report 82-125, 130 p.

Green, R.H., 1979, Sampling design and statistical methods for environmental biologists: New York, John Wiley, 257 p.

Guy, H.P., 1969, Laboratory theory and methods for sediment analysis: U.S. Geological Survey Techniques of Water-Resources Investigations, book 5, chap. Cl, 58 p.

Lewis, E.L., 1980, The practical salinity scale of 1978 and its antecedents: Journal of Oceanic Engineering, v. OE-5, no. 1, p. 3-8.

Nichols, F.H., andPamatmat, M.M., 1988, The ecology of the soft-bottom benthos of San Francisco Bay: a community profile: U.S. Fish and Wildlife Service Biological Report 85(7.19), 73 p.

Nichols, F.H. and Thompson, J.K., 1985a, Persistence of an introduced mudflat community in South San Francisco Bay, California: Marine Ecology-Progress Series, v. 24, p. 83-97.

~1985b, Timescales of change in the San Francisco Bay benthos: Hydrobiologia, v. 129,p. 121-138.

Schemel, L.E.,Ota,A.Y.,Harmon,J.G., Shay, J.M., and Adorador,R.M., 1988,Benthicmacrofauna and ancillary data for San Francisco Bay, California, March to November 1987: U.S. Geological Survey Open-File Report 88-192,73 p.


Table 3. Benthic macrofauna data

Taxonomic entryKinnetic

Laboratorycode

IndividualsReplicate number

Sampling date: January 12,1988

Amaeana occidentalis ................4810001 444Ampelisca abdita ....................5275504 103 268 217Anaitides longipes ...................4810505 0 1 1Asychiselongata ....................4810565 004Cerebratulussp(p). ..................4000014 300Corophium alienense ................. 5275287 7 10 4Cryptomya californica ...............5540155 110Edwardsia sipunculoides .............3730022 0 1 1Edwardsiidae, unident. ...............3730045 1 0 0Euchone limnicola ...................4810255 1 3 4Exogone lourei .....................4810066 278Glycindepolygnatha .................4810496 255Harmothoe lunulata .................4810689 0 1 0Hemigrapsus oregonensis ............. 5286092 001Hesperonoe sp(p). ...................4810090 0 0 1Leitoscoloplos pugettensis ............4810516 334Leptocheliadubia ...................5264038 1 5 8Lineidae, unident. ...................4000038 0 1 0Macomasp(&. ......................5540105 0 0 1Musculista senhousia ................ 5540401 102Mysellasp(p). ......................5540137 300Mysellasp, (A) (SCAMIT)............. 5540212 302Mytilusedulis ......................5540024 1 0 1Natantia, unident. ...................5286111 000Nematodes, unident. .................4500001 3 64 37Nephtysferruginea ..................4810706 0 1 1Nephtys sp(p). ......................4810579 000Oligochaete, unident. ................4880001 3 39 3Philinesp.(A)(SCAMIT) .............5570240 200Pholoeglabra ......................4810442 0 0 1Phoronissp(p). .....................5700002 340 10 0Potamocorbula amurensis ............5540214 010Protothaca staminea ................. 5540035 0 0 1Pseudopolydora kempi ...............4810640 0 1 1Pseudopolydorapaucibranchiata .......4810347 012Sarsiella zostericola ................. 5220091 030Schistomeringos rudolphi .............4810354 200Sderoplax granulata .................5286519 1 0 0Sphaerosyllis californiensis ...........4810272 1 66 5Stylatula sp(p). ......................3730044 020Tapesjaponica .....................5540158 0 1 0

373

1201040021000131000010000121000001000110

5263

03014000657410280002411700

2920

1421104000

2020

BENTHIC MACROFAUNA DATA 11

Table 3. Benthic macrofauna data Continued


Laboratorycode


Berkeley

Sampling date: March 8,1988

Amaeana occidentalis ................4810001 1Ampelisca abdita ....................5275504 1Amphiodia digitata (juv) .............. 5930026 0Amphiuridae, unident. ................ 5930032 0Anthozoan, unident. ..................3730010 0Asychis elongata ....................4810565 0Campanularidae, unident..............3710039 0Chaetognatha ......................6200000 0Cirriformia spirabrancha .............4810854 0Corophium alienense ................. 5275287 0Corophium sp(p).....................5275098 0Cryptomya californica ...............5540155 0Decapod larvae .....................5286045 0Edwardsia sipunculoides ............. 3730022 0Euchone limnicola ...................4810255 0Exogone lourei .....................4810066 0Gemma gemma ..................... 5540400 0Glycinde polygnatha .................4810496 1Hesperonoe sp(p). ...................4810090 0Leitoscoloplospugettensis ............4810516 1Leptochelia dubia ...................5264038 0Leuconsubnasica ................... 5263012 0Lightiella serendipita ................5204001 0Lineidae, unident. ...................4000038 0Mediomastus sp. ....................4810303 0Modiolus sp(p). .....................5540409 1Mysella sp(p). ......................5540137 0Mysella sp. (A) (SCAMIT) ............. 5540212 0Nematodes, unident. .................4500001 0Nephtys cornutafranciscana ...........4810116 1Nephtysferruginea ..................4810706 2Oligochaete, unident. ................4880001 0Pholoe glabra ......................4810442 0Phoronis sp(p). .....................5700002 0Pseudopolydorapaucibranchiata ...... .4810347 1Schistomeringos rudolphi .............4810354 0Sphaerosylliscaliforniensis ...........4810272 0Spiophanes berkeleyorum .............4810465 0Stylatula sp(p).......................3730044 0Tapesjaponica ..................... 5540158 1Tubulanus sp(p). ....................4000013 0Upogebia pugettensis ................5286103 0

20000000003000080622200000I9

1400

II 0

16 1 1 9 0 1 0 0 0

2900320I 0

II32

0333

10121100111102

200050101511112

2610021006

29000070801

100002009

7810

171020

3004000

100103001282000003001100000013010

18203301000




Laboratorycode


Berkeley

Sampling date: May 31,1988

Amaeana occidentalis ..........Ampelisca abdita ..............Asychis elongata ..............Capitella capitata .............Cerebratulus sp(p). ............Cirriformia spirabrancha .......Corophium sp. a ..............Crangon sp (juv) ..............Cryptomya californica .........Dentinephtys sp. A (Harris) .....Edwardsiidae, unident. .........Euchone limnicola .............Exogone lourei ...............Glycinde polygnatha ...........Harmothoe imbricata ..........Harmothoe lunulata ...........Hesperonoe sp(p). .............Leitoscoloplos pugettensis ......Leptochelia dubia .............Lightiella serendipita ..........Macoma nasuta ...............Mysella sp. (A) (SCAMIT) .......Mytilus edulis ................Nematodes, unident. ...........Nephtys cornutafranciscana .....Oligochaete, unident. ..........Philine sp. (A) (SCAMIT) .......Phoronis sp(p). ...............Potamocorbula amurensis ......Pseudopolydora kempi .........Sarsiella zostericola ...........Schistomeringos rudolphi .......Sphaerosyllis bilobata ..........Sphaerosyllis californiensis .....Stylatula sp(p). ................Tapes japonica ...............Tenonia priops ................Tubulanus sp(p). ..............Upogebia pugettensis ..........

. . . . . .4810001

......5275504

......4810565

......4810241

. . . . . .4000014

. . . . . .4810854

......5275510

......5286127

......5540155

......4810904

......3730045

......4810255

. . . . . .4810066

......4810496

. . . . . .4810343

. . . . . .4810689

. . . . . .4810090

......4810516

......5264038

......5204001

......5540019

......5540212

......5540024

......4500001

......4810116

. . . . . .4880001

......5570240

......5700002

......5540214

. . . . . .4810640

......5220091

......4810354

. . . . . .4810833

......4810272

......3730044

......5540158

. . . . . .4810727

. . . . . .4000013

......5286103

212

3611

229100123701031115138

164

2400201

1811000

071700

115001205500010101002

106000000300013

I 62

II 1 0

28 012202101060102028

355000000810010

35I

II 0 0

349 0 0 0 1 0 7 5 1 0 3 1 1 0 0

24 0 5 2

16 0 0 22300810100

0152

1000

179000141

1100040001005

121100220800000




Laboratorycode


Berkeley

Sampling date: July 28,1988

Amaeana occidentalis ...........Ampelisca abdita ...............Ampharete labrops .............Asychis elongata ...............Campanularidae, unident. ........Capitella capitata .............Cerebratulus sp(p). ............Corophium sp(p). ..............Corophium sp. a ..............Cryptomya californica .........Edwardsia sipunculoides .......Edwardsiidae, unident. .........Euchone limnicola .............Glycinde polygnatha ...........Leitoscoloplos pugettensis ......Leptochelia dubia .............Leucon subnasica .............Lightiella serendipita ..........Lineidae, unident. .............Musculista senhousia ..........Mya arenaria .................Mysella sp. (A) (SCAMIT) .......Natantia, unident. .............Nemertea, unident. ............Nephtys cornutafranciscana .....Ostracods, unident. ............Phoronis sp(p). ...............Photis brevipes ...............Pleusymtes sp(p). ..............Potamocorbula amurensis ......Protothaca staminea ...........Pseudopolydora kempi .........Pyromaia tuberculata ..........Sarsiella zostericola ...........Schistomeringos rudolphi .......Scleroplax granulata ...........Scolelepis squamata ...........Spiophanes berkeleyorwn .......Stylatula sp(p). ................Tubulanus sp(p). ..............Upogebia pugettensis ..........

. . . . . .4810001

......5275504

......4810002

. . . . . .4810565

......3710039

. . . . . .4810241

. . . . . .4000014

......5275098

......5275510

......5540155

......3730022

......3730045

. . . . . .4810255

. . . . . .4810496

. . . . . .4810516

......5264038

......5263012

......5204001

......4000038

......5540401

......5540402

......5540212

......5286111

..... .4000002

......4810116

......5220003

......5700002

......5275109

......5275203

......5540214

......5540035

......4810640

......5286094

......5220091

..... .4810354

......5286519

..... .4810589

..... .4810465

......3730044

..... .4000013

......5286103

08020

1332

16211001110031001020

18900001002000301

0 3 0'

2 0 2 0 2

125 0 0 2 1 4 3 0 0 1 0 0 0 01011101100001011110

12121301

1600104101000020020

1401011101000000

06061002

3700102100000100210

5940010000000100

00030000

8500003100000100210

4300000010100001




Laboratorycode


Berkeley

Sampling date: September 13,1988

Amaeana occidentalis ................4810001 0 1 0Ampelisca abdita ....................5275504 275Asychis elongata ....................4810565 410Campanularidae, unident.............. 3710039 1 0 0Capitella capitata ...................4810241 003Cerebratulus sp(p). ..................4000014 1 0 1Cooperella subdiaphana .............. 5540056 000Corophiumsp(p). ....................5275098 000Corophium sp.a ....................5275510 77 50 53Cryptomya californica ...............5540155 8 10 6Diopatrasp(p). .....................4810999 0 1 0Edwardsia sp(p). ....................3730037 0 0 1Edwardsiidae, unident. ............... 3730045 1 1 1Euchone limnicola ...................4810255 000Exogone lourei .....................4810066 0 0 1Glycinde polygnatha .................4810496 486Harmothoe imbricata ................4810343 000Harpacticoid copepod, unident. ........ 5230052 101Heteromastusfiliformis ...............4810438 1 0 0Hydrozoa, unident. ..................3710052 1 0 0Leitoscoloplos pugettensis ............4810516 074Leptochelia dubia ...................5264038 000Leucon subnasica ...................5263012 0 1 0Lineidae, unident. ...................4000038 002Mysella up. (A) (SCAMIT)............. 5540212 0 1 0Nematodes, unident. .................4500001 000Nephtys caecoides ...................4810114 0 0 0Nephtys cornutafranciscana ...........4810116 3 2 2Oligochaete, unident. ................4880001 1 7 1Pennatulacea, unident. ...............3700002 0 1 1Philinesp.(A)(SCAMIT) .............5570240 1 0 1Phoronis sp(p). .....................5700002 13 120 330Photisbrevipes .....................5275109 003Platyhelminthid, unident. .............3900001 0 1 0Potamocorbula amurensis ............5540214 003Protothaca staminea ................. 5540035 111Pseudopolydora kempi ...............4810640 000Pseudopolydorapaucibranchiata .......4810347 000Sarsiella zostericola ................. 5220091 002Solen sicarius ......................5540416 000Spiophanes missionensis ..............4810204 100Tenoniapriops...................... 4810727 0 0 1

11102100

110000004000030000008

1003

350051121100

01103111

824000116100021010111123

3521011000100




Laboratorycode


Berkeley

Sampling date: September 13,1988 Continued

Theora lubrica ......................5540114 00010Tubulanus sp(p). ....................4000013 30100Upogebiapugettensis ................5286103 10000

Sampling date: November 1,1988

Amaeana occidental ................4810001 00010Ampelisca abdita ....................5275504 10 10 2 0 26Asychis elongata ....................4810565 50233Campanularidae, unident..............3710039 10010Capitella capitata ...................4810241 13403Cerebratulus sp(p). ...................4000014 01000Clinocardium nuttallii ................ 5540417 00010Corophium sp. a ....................5275510 55 22 22 04Cryptomya californica ............... 5540155 30 26 0 0 11Edwardsiasipunculoides .............3730022 00001Edwardsiidae, unident. ...............3730045 01201Euchone limnicola ...................4810255 00030Eusyllis transecta ...................4810680 01000Glycinde polygnatha .................4810496 46465Leitoscoloplos pugettensis ............4810516 11211Leptochelia dubia ...................5264038 01000Lemon subnasica ...................5263012 10000Lightiella serendipita ................5204001 01000Macoma indentata ...................5540176 01000Mactra sp(p). .......................5540122 00010Melanochlamys diomedea .............5570248 01000Molgula manhattensis ................6301075 01000Musculista senhousia ................5540401 10000Neanthes virens .....................4810560 01000Nematodes, unident. .................4500001 00040Nephtys caecoides ...................4810114 10001Nephtys cornuta franciscana ...........4810116 01032Nephtys sp(p). ......................4810579 00200Oligochaete, unident. ................4880001 72010Philinesp.(A)(SCAMIT) .............5570240 11202Phoronis sp(p). .....................5700002 58 580 41 1 59Photissp(p). ........................5275013 04203Polydora socialis ....................4810940 01000




Laboratorycode


Berkeley

Sampling date: November 1,1988 Continued

Potamocorbula amurensis ............5540214 102Protothaca staminea ................. 5540035 000Pseudopolydora kempi ...............4810640 000Sarsiella zostericola .................5220091 1 1 0Schistomeringos rudolpfu .............4810354 110Solen sicarius .......................5540416 1 0 0Sphaerosyllis californiensis ...........4810272 000Stylatulasv(v). ......................3730044 1 1 1Tapesjaponica .....................5540158 0 1 0Tenoniapriops...................... 4810727 0 1 0Tubulanus sp(p). ....................4000013 200

Coyote Point


Amaeana occidentalis ................4810001 001Ampelisca abdita .................... 5275504 269 215 189Anaitides longipes ...................4810505 1 0 0Anthozoan, unident. ..................3730010 0 0 1Asychis elongata ....................4810565 27 39 22Capitella capitata ...................4810241 000Corophium alienense ................. 5275287 12 15 29Eusyllis transecta ...................4810680 15 9 4Exogone lourei .....................4810066 1 3 3Gemma gemma .....................5540400 0 0 1Glycinde polygnatha .................4810496 9 11 10Heteromastusfiliformis ...............4810438 0 0 1Leitoscoloplospugettensis ............4810516 200Macoma balthica ....................5540147 000Mediomastus sp. ....................4810303 1 1 0Musculista senhousia ................5540401 733Mya arenaria .......................5540402 000Nematodes, unident. .................4500001 2 10 12Nephtys caecoides ...................4810114 1 1 1Nephtys cornutafranciscana ...........4810116 1 1 2Odostomia(Evalea)sv.N(Shrake) .....5570321 0 1 0Oligochaete, unident. ................4880001 20 63 47Philine sp. (A) (SCAMIT) .............5570240 0 1 0Potamocorbula amurensis ............5540214 444Pseudopolydora kempi ...............4810640 116Sarsiella zostericola ................. 5220091 12 5 7

0139

00

200

197305001020

11000

530315

0138

00

251

201200601006200017023

12




Laboratorycode


1

Coyote Point

Sampling date: January 13,1988 Continued

Schistomeringosrudolphi .............4810354 01010Streblospio benedicti .................4810257 00010Tapesjaponica .....................5540158 35 40 38 25 18Theora lubrica ......................5540114 74634


Ampelisca abdita ....................5275504 46 34 142 54Asychis elongata ....................4810565 21 28 34 32Campanularidae, unident..............3710039 Oil 0Corophiumalienense................. 5275287 11 1 11 6Corophium sp(p).....................5275098 600 5Euchone limnicola ...................4810255 422 0Exogonelourei .....................4810066 20 8 5 5Gemma gemma .....................5540400 310 0Glycera americana ..................4810487 000 1Glycindepolygnatha .................4810496 639 3Heteromastusfiliformis ...............4810438 102 0Leitoscoloplospugettensis ............4810516 010 0Leuconsubnasica ...................5263012 010 0Musculistasenhousia ................5540401 11 13 29 5Neanthes succinea ...................4810562 010 0Nematodes, unident. .................4500001 0 12 6 2Nephtys caecoides ...................4810114 1 2 0 0Nephtys cornutafranciscana ...........4810116 100 0Odostomia(Evalea)sp.I(Shrake) ......5570317 000 1Oligochaete, unident. ................4880001 40 43 2 1Polydora brachycephala ..............4810557 332 0Polynoid, unident. ...................4810936 100 0Potamocorbula amurensis ........... ,5540214 423 2Pseudopolydorakempi ...............4810640 200 0Sarsiella zostericola ................. 5220091 213 2Schistomeringosrudolphi .............4810354 101 0Sphaerosylliscaliforniensis ...........4810272 010 0Streblospio benedicti .................4810257 100 1Tapes japonica .....................5540158 33 26 43 24Theora lubrica ......................5540114 324 3Vpogebia pugettensis ................ 5286103 100 0



KinneticTaxonomic entry Laboratory

code 1


2 3 4 5

Coyote Point


Amaeana occidentalis .........Ampelisca abdita .............Amphiurid, unident. ...........Anaitides longipes ............Anthozoan, unident. ...........Asychis elongata .............Balanus crenatus .............Brachyuran megalops .........Capitdla capitata ............Corophium sp(p)..............Corophium sp. a .............Cryptomya californica ........Euchone limnicola ............Exogone lourei ..............Gemma gemma ..............Glycinde polygnatha ..........Harmothoe imbricata .........Leitoscoloplos pugettensis .....Leptochelia dubia ............Leucon subnasica ............Lightiella serendipita .........Musculista senhousia .........Nematodes, unident. ..........Nephtys caecoides ............Nephtys cornutafranciscana ....Oligochaete, unident. .........Philine sp. (A) (SCAMIT) ......Polydora brachycephala .......Potamocorbula amurensis .....Pseudopolydorapaucibranchiata Pyromaia tuberculata .........Sarsiella zostericola ..........Schistomeringos rudolpfu ......Siliqua lucida ................Sphaerosyllis californiensis ....Tapesjaponica ..............Theora lubrica ...............Upogebia pugettensis .........

.4810001

.5275504

.5930014

.4810505

.3730010

.4810565

.5250036

.5286064

.4810241

.5275098

.5275510

.5540155

.4810255

.4810066

.5540400

.4810496

.4810343

.4810516

.5264038

.5263012

.5204001

.5540401

.4500001

.4810114

.4810116

.4880001

.5570240

.4810557

.5540214

.4810347

.5286094

.5220091

.4810354

.5540043

.4810272

.5540158

.5540114

.5286103

0121

111

431100

37105501920000

520001041000301

4610

0118030

280013

32504130

2800011

400020014000000

4120

091000120001

39105

171

2430010

310157235005701

4231

1175001

400030

4920780

2710210

2920462033061001830

089000

370021

40415

170

4012100

320113241013011

3201




Laboratorycode


Coyote Point


Ampelisca abdita ....................5275504 8 15Anthozoan, unident. ..................3730010 0 2Asychis elongata ....................4810565 53 68Campanularidae, unident..............3710039 0 1Capitella capitata ...................4810241 1 0Cheilostomata unident. ............... 5600177 0 1Corophium sp(p).....................5275098 0 1Corophiwn sp. a ....................5275510 16 12Euchone limnicola ...................4810255 7 31Exogonelourei .....................4810066 1 2Glycinde polygnatha .................4810496 2 1Harmothoe imbricata ................4810343 2 2Heteromastusflliformis ...............4810438 0 2Hydrozoa, unident. ..................3710052 0 0Leitoscoloplos pugettensis ............4810516 0 1Leptocheliadubia ...................5264038 1 0Marphysa sanguined .................4810248 0 0Mediomastussp. ....................4810303 1 0Molgula manhattensis ................6301075 0 0Musculista senhousia ................ 5540401 10 10Nephtys caecoides ...................4810114 1 0Nephtys cornutafranciscana ...........4810116 1 1Oligochaete, unident. ................4880001 0 1Philine sp. (A) (SCAMIT) .............5570240 2 0Phoronis sp(p). .....................5700002 0 0Polydora ligni ......................4810168 0 2Potamocorbula amurensis ............ 5540214 2 4Pseudopolydora paucibranchiata .......4810347 0 1Sarsiella zostericola ................. 5220091 0 5Schistomeringos rudolphi .............4810354 0 0Streblospio benedicti .................4810257 0 0Tapesjaponica .....................5540158 6 16Theora lubrica ......................5540114 4 10


Ampelisca abdita ....................5275504 182 76Amphiuridae, unident. ................ 5930032 1 0Anthozoan, unident. .................. 3730010 0 3Asychis elongata ....................4810565 35 57Campanularidae, unident..............3710039 0 1Capitella capitata ...................4810241 ' 1 3

140

251013

3220

2210120001

250001020120096

9300

8200

140

391113

192115

340141101

16012002301119

11201

2702

61

250000630020120000

220002900100050

10601

3100




Laboratorycode


Coyote Point


Cirratulidae, unident. ................4810990 13132Corophiumsp(p). ....................5275098 10000Corophiumsp,a ....................5275510 19 7 4 7 18Cre/MdMte/j/ana.....................5570204 00100Crepidula sp(p), .....................5570203 1 0 0 0 0Crepidula sp. A (Shrake) .............. 5570331 00100Cryptomya californica ...............5540155 00010Dorvilleidae, unident. ................4810583 13720Euchone limnicola ...................4810255 125 137 242 192 132Eudorella pacifica ...................5263112 00010Eusyllis transecta ...................4810680 03000Exogone lourei .....................4810066 196 238 315 278 181Gemma gemma .....................5540400 10000Glydndepolygnatha .................4810496 03115Grandidierellajaponica ..............5275503 12 3 4 2 4Harmothoe imbricata ................4810343 24321Harmothoe lunulata .................4810689 01010Leitoscoloplospugettensis ............4810516 1 1 0 2 0Leptocheliadubia ...................5264038 30320Leucon subnasica ...................5263012 00011Macoma sp(p). ......................5540105 00001Melanochlamys diomedea ............. 5570248 01000Molgula manhattensis ................6301075 0 35 6 81Musculistasenhousia ................5540401 48 60 52 54 16Natantia, unident. ...................5286111 00100Neanthes succinea ...................4810562 10020Nematodes, unident. .................4500001 93 7 13 61 1Nephtys cornutafranciscana ...........4810116 2 4 1 2 1Nudibranchia, unident. ............... 5570976 00100Odostomia (Evalea) sp. H (Shrake) .....5570314 11110Oligochaete, unident. ................4880001 38 32 71 39 44Philinesp.(A)(SCAMIT) .............5570240 00220Phoronis sp(p). .....................5700002 1 0 2 10 1Platyhelminthid, unident. .............3900001 00001Polydora brachycephala ..............4810557 35457Polydora ligni ......................4810168 92 115 166 123 174Potamocorbulaamurensis ............5540214 40 65 21 50 52Pseudopolydora kempi ...............4810640 0 613 8 12Pseudopolydorapaucibranchiata .......4810347 59 57 62 54 38Pyromaia tuberculata ................5286094 00410Sarsiellazostericola .................5220091 13 8 11 12 10Schistomeringosrudolphi .............4810354 20341Sphaerosyllis bilobata ................4810833 03251




Laboratorycode 1

Coyote Point


2 3 4 5

Sampling date: September 14, 1988 Continued

Sphaerosyllis californiensis .Streblospio benedicti .......Tapes japonica ...........Tenonia priops ............Theora lubrica ............Tubulanus pellucidus .......

Amaeana occidentalis ......Ampelisca abdita ..........AmphiocUa sp(p). ..........Amphiuridae, unident. ......Anthozoan, unident. ........Asychis elongata ..........Brachyuran megalops ......Brachyuran zoea ..........Campanularidae, unident. . . .Capitella capitata .........Caprella sp(p). ............Cirratulidae, unident. ......Corophium sp(p). ..........Corophium sp. a ..........Cossura pygodactylata .....Crangon nigricauda .......Crepidula plana ...........Crepidula sp(p). ...........Crepidula sp. A (Shrake) ....Diopatra sp(p). ...........Edwardsiidae, unident. .....Euchone limnicola .........Exogone lourei ...........Gemma gemma ...........Glycera americana ........Glycinde polygnatha .......Grandidierella japonica ....Harmothoe imbricata ......Leitoscoloplos pugettensis . .Leptochelia dubia .........Macoma acolasta .........Macoma sp(p). ............

......... .4810272 5

..........4810257 15

..........5540158 39

......... .4810727 2

..........5540114 31

..........4000011 1

Sampling date: November 2,

..........4810001 0

..........5275504 1,512

..........5930040 0

..........5930032 0

..........3730010 2

..........4810565 20

..........5286064 0

..........5286063 1

..........3710039 0

......... .4810241 1

..........5275117 0

......... .4810990 2

..........5275098 1

..........5275510 46

..........4810861 4

..........5286120 0

..........5570204 0

..........5570203 1

..........5570331 0

......... .4810999 0

..........3730045 0

......... .4810255 394

..........4810066 166

..........5540400 0

..........4810487 0

......... .4810496 5

..........5275503 3

......... .4810343 2

..........4810516 4

..........5264038 2

..........5540026 0

..........5540105 1

172843

0230

1988

01,013

011

222010040

123000000

286220

011120100

1816320

120

11,297

102

181010001

221110110

450200

000502200

101343

0320

31,486

001

42001

11130

8616000000 ,

576318

102310510

111730

1380

01,279

001

251013020

353010001

411258

004921200




Laboratorycode


Coyote Point


Molgula manhattensis ................6301075 08000Musculistasenhousia ................5540401 5 10 11 22 6Mysella sp. (A) (SCAMIT) ............. 5540212 00011Mytilusedulis ......................5540024 00010Natantia, unident. ...................5286111 10000Neanthes succinea ...................4810562 21040Nematodes, unident. .................4500001 50 62 63 132 61Nephtys caecoides ...................4810114 01110Nephtys cornutafranciscana ...........4810116 12428Nephtys sp(p). ......................4810579 30000Odostomia(Evalea)sp.H(Shrake) .....5570314 42566Odostomia (Evalea) sp. J (Shrake) ......5570305 10000Odostomia sp(p). ....................5570075 10000Oligochaete, unident. ................4880001 24 38 47 101 34Philine sp.(A) (SCAMIT) .............5570240 20211Phoronissp(p). .....................5700002 11000Polydoraligni ......................4810168 130 69 117 168 110Potamocorbulaamurensis ............5540214 38 31 49 41 40Pseudopolydorakempi ...............4810640 6 3 3 12 3Pseudopolydorapaucibranchiata .......4810347 23 5 36 60 32Pyromaia tuberculata ................5286094 00032Sarsiellazostericola .................5220091 13 4 6 10 3Schistomeringosrudolphi .............4810354 13083Sphaerosyllis californiensis ...........4810272 3 2 4 17 5Spiophanesbombyx ..................4810203 00020Streblospio benedicti .................4810257 02000Synidotea laticauda ..................5265110 00010Tapesjaponica .....................5540158 23 14 40 33 33Theora lubrica ......................5540114 42 48 28 43 26Tubulanussp(p). ....................4000013 00100

Grizzly Bay


Ampelisca abdita ....................5275504 01010Grandidierella japonica ..............5275503 00010Leucon subnasica ...................5263012 8 17 8 57 32Macoma balthica ....................5540147 20000Neanthes succinea ...................4810562 01110Oligochaete, unident. ................4880001 16 19 20 24 22Potamocorbula amurensis ............5540214 176 158 187 192 141




Laboratorycode


Grizzly Bay


Pseudopolydorakempi ...............4810640 01011Streblospio benedicti .................4810257 00100


Ampelisca abdita ....................5275504 20001Exogone lourei .....................4810066 10000Leuconsubnasica ...................5263012 9 29 16 16 34Macoma balthica ....................5540147 02020Neanthes succinea ...................4810562 10101Oligochaete, unident. ................4880001 12 37 25 30 25Potamocorbula amurensis ............5540214 151 276 131 201 248Pseudopolydorakempi ...............4810640 01010Sarsiellazostericola .................5220091 10000Streblospio benedicti .................4810257 02330


Ampelisca abdita ....................5275504 00100Leuconsubnasica ...................5263012 6 17 14 5 28Macoma balthica ....................5540147 10111Oligochaete, unident. ................4880001 25238Potamocorbula amurensis ............5540214 153 135 168 141 188Pseudopolydorakempi ...............4810640 00010


Balanus improvisus ..................5250020 21003Brachyuran zoea ....................5286063 00010Corophiumsp,a ....................5275510 10001Leuconsubnasica ...................5263012 0 1 12 30Neanthes succinea ...................4810562 00100Oligochaete, unident. ................4880001 02010Potamocorbula amurensis ............5540214 76 47 210 95 105


Ampelisca abdita ....................5275504 01230Balanus improvisus ..................5250020 20002Corophiumsp(p). ....................5275098 00010Heteromastusfiliformis ...............4810438 10110Hydrozoa, unident. ..................3710052 00001Leuconsubnasica ...................5263012 02200



Taxonomic entryKinnetic Individuals

Laboratorycode 1

Grizzly Bay

Replicate number2 3 4 5


Neanthes succinea ............Nematodes, unident. ..........Oligochaete, unident. .........Potamocorbula amurensis .....Pseudopolydora kempi ........Streblospio benedicti ..........Volvulella panamica ..........

...... .4810562

...... .4500001

...... .4880001

.......5540214

.......4810640

...... .4810257

.......5570236

000

182001

Sampling date: October 3 1 ,

Ampelisca abdita .............Balanus sp(p). ...............Diopatra sp(p). ..............Exogone lourei ..............Grandidierellajaponica .......Heteromastusfiliformis ........Leucon subnasica ............Neanthes succinea ............Nematodes, unident. ..........Oligochaete, unident. .........Potamocorbula amurensis .....Pseudopolydora kempi ........

.......5275504

.......5250002

.......4810999

...... .4810066

.......5275503

...... .4810438

.......5263012

...... .4810562

...... .4500001

...... .4880001

.......5540214

...... .4810640

11000006007

2360

Palo Alto

Sampling date: January 14,

Ampelisca abdita .............Asychis elongata .............Euchone limnicola ............Gemma gemma ..............Glycinde polygnatha ..........Gobiidae, unident. ............Grandidierellajaponica .......Heteromastusfiliformis ........Leucon subnasica ............Macoma balthica .............Musculista senhousia .........Nassarius obsoletus ...........Neanthes succinea ............Nematodes, unident. ..........Odostomia (Evalea) sp. / (Shrake)Oligochaete, unident. .........

.......5275504

...... .4810565

...... .4810255

.......5540400

...... .4810496

.......6384002

.......5275503

...... .4810303

.......5263012

.......5540147

.......5540401

.......5570304

...... .4810562

...... .4500001......5570317

.......4880001

10731

1,042611

2659

25043

1435

000

141100

1988

1202109000

1970

1988

43952

1,459901

9365

1713

1523

107

000

161100

0410005110

2100

95622

1,5301203

5264

1901

423493

103

212210

11000012100

2431

116531

1,389301

5361

1120228

44

012

251120

160000

10100

2130

55631

1,8621002

8176

311027

1861




Laboratorycode


1 2 3 4 5

Palo Alto

Pseudopolydora kempi .........Sarsiella zostericola ...........Streblospio benedicti ...........Synidotea laticauda ............Tharyx sp. ...................

Ampelisca abdita ..............Asychis elongata ..............Campylaspis sp(p). ............Cwnella vulgaris ..............Euchone limnicola .............Gemma gemma ...............Glycinde polygnatha ...........Harmothoe sp(p), ..............Heteromastusfiliformis .........Leucon subnasica .............Macoma balthica ..............Musculista senhousia ..........Neanthes succinea .............Nematodes, unident. ...........Nephtys caecoides .............Odostomia (Evalea) sp. // (Skrake)Odostomia (Evalea) sp. / (Shrake)Oligochaete, unident. ..........Polydora ligni ................Potamocorbula amurensis ......Pseudopolydora kempi .........Sarsiella zostericola ...........Sphaerosyllis bilobata ..........Streblospio benedicti ...........Tharyx sp(p). .................Upogebia pugettensis ..........

Ampelisca abdita ..............Amphiurid, unident. ............Anthozoan, unident. ............Asychis elongata ..............Cirratulidae, unident. ..........Corophium sp(p). ..............

Samph'ng date: January

. . . . . .4810640

......5220091

. . . . . .4810257

......52651104810595

Sampling date:

......5275504

..... .4810565

......5263001

......5263098

..... .4810255

......5540400

..... .4810496

..... .4810856

..... .4810438

......5263012

......5540147

......5540401

..... .4810562

..... .4500001

......4810114.....5570314

......5570305

......4880001

..... .4810168

......5540214

..... ,4810640

......5220091

..... .4810833

..... .4810257

..... .48103195286103

Sampling date:

14, 1988 Continued

212765

02

March 7,

14730

282

54644

62157

0739041

70702

1383

20902

May 26,

......5275504 2,953

......5930014

......3730010

..... .4810565

......4810990

......5275098

1000

218

0205

9815

1988

15011

105

98520

4256

0952160

29410

740

5400

1988

1,3240100

141

0295122

01

22822

372

51343

45218

0112010

40701

942

17151

2,9100011

196

0269102

02

17630

277

71912

93194

3623020

1001400

1442

27740

3,1900002

210

0224105

03

20720

212

78343

96145

0742030

91002

1131

21221

2,7350040

183



Taxonomic entry

Corophium sp. a ...............Cumella vulgaris ...............Gemma gemma ................Glycinde polygnatha ............Grandidierellajaponica .........Harmothoe imbricata ...........Heteromastusfiliformis ..........Leucon subnasica ..............Macoma balthica ...............Macoma sp(p). .................Musculista senhousia ...........Afya arenaria ..................Neanthes succinea ..............Nematodes, unident. ............Nemertea, unident. .............Odostomia (Evalea) sp. // (Shrake)Odostomia (Evalea) sp. / (Shrake) .Odostomia (Evalea) sp. / (Shrake) .Oligochaete, unident. ...........fW/i/M? sp. (A j (SCAMIT) ........Polydora ligni .................Potamocorbula amurensis .......Pseudopolydora kempi ..........Pseudopolydora paucibranchiata . .Sarsiella zostericola ............Streblospio benedicti ............Tapes japonica ................Theora lubrica .................Upogebia pugettensis ...........

KinneticLaboratory

code

Sampling date:

.....5275510

.....5263098

.....5540400

.... .4810496

.....5275503

.....4810343

.....4810438

.....5263012

.....5540147

.....5540105

.....5540401

.....5540402

.... .4810562

.....4500001

.... .4000002

.....5570314

.....5570317

.....5570305

.....4880001

.....5570240

.....4810168

.....5540214

.... .4810640

.....4810347

.....5220091

.... .4810257

.....5540158

.....55401145286103


1

Palo Alto

2 3 4 5

May 26, 1988 Continued

120

1,3684634

46

14240831

240065

1451

141

26197240

110

Sampling date: July 26,

Ampelisca abdita ...............Ajyc/uj elongata ...............Cirratulidae, unident. ...........Corophium sp(p). ...............Euchone limnicola ..............Exogone lourei ................Gemma gemma ................Glycinde polygnatha ............Grandidierellajaponica .........Harmothoe imbricata ...........Heteromastusfiliformis ..........

.....5275504

.... .4810565

.....4810990

.....5275098

.... .4810255

.... .4810066

.....5540400

.... .4810496

.....5275503

.... .4810343

.....4810438

46431

10600

47812

11570

18

1,6997415

33

13730

12720014

117

100

1019

11822

0120

1988

47110

13110

37130

18232

039

96487371413

16750821

154704

2011

120

1418623

091

45220

14801

44816

2024

13

127

1,1287267

53

14330840400348

150708

23765

190

58901

9600

55915

1735

33

037

974803310

8136

01

171140600

1040701

19618040

53700

8400

33039

2674

12



Taxonomic entry

Leucon subnasica ..............Lumbrineris sp(p). ..............Macoma sp(p). .................Melanochlamys diomedea ........Musculista senhousia ...........Mya arenaria ..................Neanthes succinea ..............Nematodes, unident. ............Odostomia (Evalea) sp. / (Shrake) .Odostomia (Evalea) sp. J (Shrake) .Philine sp. (A) (SCAMIT) ........Potamocorbula amurensis .......Pseudopolydora kempi ..........Pseudopolydorapaucibranchiata . .Sarsiella zostericola ............Streblospio benedicti ............Synidotea laticauda .............Tapes japonica ................Theora lubrica .................

KinneticLaboratory

code

Sampling date:

.....5263012, . . . . .4810584.....5540105.....5570248

......5540401

......5540402.....4810562

, . . . . .4500001......5570317......5570305......5570240......5540214, . . . . .4810640......4810347......5220091, . . . . .4810257.....5265110

......55401585540114


1

Palo Alto

2 3 4 5

July 26, 1988 Continued

26100

11400214

1210

2891300

22

Sampling date: September

Ampelisca abdita ...............Asychis elongata ...............Caprella sp(p). .................Cirratulidae, unident. ...........Corophium sp(p). ...............Deutella californica .............Exogone lourei ...............Gemma gemma ...............Glycinde polygnatha ...........Grandidierella japonica ........Harmothoe imbricata ..........Harmothoe lunulata ...........Heteromastusfiliformis .........Leucon subnasica .............Macoma sp(p). ................Musculista senhousia ..........Mya arenaria .................Nassarius obsoletus ............Neanthes succinea .............Nematodes, unident. ...........Nephtys cornutafranciscana .....

......5275504

. . . . . .4810565

......5275117

......4810990

......5275098

......5275261

......4810066

......5540400

. . . . . .4810496

......5275503

. . . . . .4810343

......4810689

. . . . . .4810438

......5263012

......5540105

......5540401

......5540402

......5570304

. . . . . .4810562

..... .4500001

......4810116

1,963000100

9146

6200

22213

01140240

110209120013

1130

268704

12

14, 1988

3,316112010

5284

5221

30237

117

11690

390008203002

1438

31833

20

17

2,545001000

2491350408

2051

1330461

470608202008

1110

3623405

21

4,127300

1023

3925

7110

15234

211

109

520

300015110113720

37339015

2,686103000

2368

4310

26136

24202

1332




Laboratorycode


1

Palo Alto

2 3 4 5


Nudibranchia, unident. ............Odostomia (Evalea) sp. / (Shrake) . . .Odostomia (Evalea) sp. J (Shrake) . . .Oligochaete, unident. .............Philine sp. (A) (SCAMIT) ..........Podocopid ostracod ...............Polydora ligni ...................Polydora sodalis .................Potamocorbula amurensis .........Pseudopolydora kempi ............Pseudopolydora paucibranchiata ....Sarsiella zostericola ..............Silophasma geminata .............Streblospio benedicti ..............Synidotea laticauda ...............Tapes japonica ..................Theora lubrica ...................

....5570976

....5570317

....5570305

. . . .4880001

....5570240

....5220092

....4810168

. . . .4810940

....5540214, . . .4810640....4810347....5220091....5265020. . . .4810257....5265110....5540158

5540114

060

87110

290

818

20284

05907

14

Sampling date: November 2,

Ampelisca abdita .................Asychis elongata .................Cirratulidae, unident. ............Euchone limnicola ...............Eudorella padfica ...............Gemma gemma .................Glydnde polygnatha .............Grandidierella japonica ..........Harmothoe imbricata ............Heteromastusfiliformis ...........Leucon subnasica ...............Macoma sp(p). ..................Melanochlamys diomedea .........Musculista senhousia ............Afyfl arenaria ...................Nassarius obsoletus ..............Neanthes succinea ...............Nematodes, unident. .............Odostomia (Evalea) sp. / (Shrake) . .Odostomia (Evalea) sp. 7 (Shrake) . .Odostomia (Evalea) sp. N (Shrake) .Oiigochaete, unident. ............/VU/HM? sp. (A; (SCAMIT) .........

....5275504

....4810565

....4810990

. . . .4810255

....5263112

....5540400

. . . .4810496

....5275503

. . . .4810343

. . . .4810438

....5263012

....5540105

....5570248

....5540401

....5540402

....5570304

. . . .4810562

. . . .4500001

....5570317

....5570305

....5570321

. . . .4880001

....5570240

1,7831030

2377

301

20103

00

33003

22010

1100

772

14361

310

715

13282

1108

27

11

1988

2,2970021

3905

434

17121

00

45103

21071

483

001

18770

420

389

18241

0158

06

12

3,1130002

3514

393

42111

00

31017

459

110

542

030

12660

413

633

23319

091

04

10

2,2530005

3103

2904

7100

28004

876

100

352

010

20761

131

261116

1840

43028

1,2710520

3612

301

3282

11

400047440

712




Laboratorycode


Palo Alto


Polydora ligni ......................4810168 01001Potamocorbula amurensis ............5540214 56 83 68 57 61Pseudopolydorakempi ...............4810640 00101Pseudopolydorapaucibranchiata .......4810347 04100Pyromaia tuberculata ................5286094 00001Sarsiellazostericola .................5220091 336 487 388 246 393Silophasma geminata ................5265020 04115Streblospio benedicti .................4810257 34 5 28 20 11Synidotea laticauda ..................5265110 00001Tapesjaponica .....................5540158 37266Theora lubrica ......................5540114 39453

San Leandro


Ampelisca abdita ....................5275504 36 74 58 25 29Anthozoan, unident. ..................3730010 02301Asychiselongata ....................4810565 8 7 3 7 13Cirratulidae, unident. ................4810990 01000Corophium alienense ................. 5275287 10211Corophiumspfp). ....................5275098 10000Cossurapygodactylata ...............4810861 00020Crepidulaplana..................... 5570204 00010C«pMu/<isp(p)......................5570203 00002Crepidula sp. A (Shrake) .............. 5570331 10010Euchone limnicola ...................4810255 00010Exogonelourei .....................4810066 8 8 11 6 13Glycinde polygnatha .................4810496 19 20 16 17 20Grandidierella japonica ..............5275503 01000Harmothoe imbricata ................4810343 01111Heteromastusfiliforms ...............4810438 13130Macoma balthica ....................5540147 10000Marphysa sanguinea .................4810248 01100Musculista senhousia ................5540401 70 61 110 69 132Nematodes, unident. .................4500001 9 10 8 5 24Nephtys cornutafranciscana ...........4810116 0 0 1 0 0Oligochaete, unident. ................4880001 94 269 178 172 146Paranemenes sp(p). .................4000050 01000Polydora brachycephala ..............4810557 00001Pseudopolydorakempi ...............4810640 00001Pseudopolydorapaucibranchiata .......4810347 02102Sarsiellazostericola .................5220091 19 53 46 22 24



Taxonomic entryKinnelic

Laboratorycode


San Leandro


Schistomeringosrudolphi .............4810354 01030Sphaerosyllis bilobata ................4810833 03829Sphaerosylliscaliforniensis ...........4810272 3 17 11 5 9Tapesjaponica .....................5540158 6 10 8 3 13Tenoniapriops...................... 4810727 01111Theora lubrica ......................5540114 01211Urosalpinxcinerea ..................5570200 00110


Ampelisca abdita ....................5275504 11 2 2 5 0Anthozoan,umdent. ..................3730010 12027Asychiselongata ....................4810565 45360Crepidulaplana..................... 5570204 03032Crepidula sp. A (Shrake) ..............5570331 50132Exogone lourei .....................4810066 2 15 9 27 9Gemma gemma .....................5540400 14101Glydndepolygnatha .................4810496 58584Harmothoe imbricata ................4810343 00104Hemigrapsus oregonensis ............. 5286092 00003Heteromastusfiliformis ...............4810438 00116Lightiellaserendipita ................5204001 00010Macoma sp(p).......................5540105 10000Marphysa sanguinea .................4810248 52243Musculistasenhousia ................5540401 25 67 23 45 58Nematodes, unident. .................4500001 45 33 7 110 10Oligochaete, unident. ................4880001 11 37 26 40 12Ostrea edulis .......................5540215 00100Pettiboneia sanmatiensis ..............4810552 00001Polydora brachycephala ..............4810557 00001Pseudopolydorapaudbranchiata .......4810347 10000Sarsiellazostericola .................5220091 18 21 6 23 0Schistomeringos rudolphi .............4810354 00002Sphaerosyllis bilobata ................4810833 09046Sphaerosyllis californiensis ...........4810272 14345Tapes japonica .....................5540158 6 19 12 22 31Theora lubrica ......................5540114 02001Tubulanus sp(p). ....................4000013 00100


Amaeana occidentalis ................4810001 00001Ampelisca abdita ....................5275504 5 26 11 4 1




Laboratorycode


San Leandro

Sampling date: May 25,1988 Continued

Anthozoan, unident. ..................3730010 000Asychis elongata ....................4810565 1 9 2Balanus sp(p). ......................5250002 000Brachyuran megalops ................5286064 0 1 0Cirratulidae, unident. ................4810990 1 0 1Corophiumsp(p'). ....................5275098 1 2 0Corophiumsp.a ....................5275510 32 102 0Cossura pygodactylata ...............4810861 000Crepidula sp(p). .....................5570203 1 2 0Crepidula sp. A (Shrake) .............. 5570331 000Exogone lourei .....................4810066 12 10 2Glycinde polygnatha .................4810496 10 19 5Harmothoe imbricata ................4810343 1 0 0Heptacarpusstimpsoni ...............5286106 000Leuconsubnasica ........... I.......5263012 000Marphysa sanguined .................4810248 631Musculista senhousia ................5540401 18 7 0Mysella sp. (A) (SCAMIT) ............. 5540212 000Mysellatumida .....................5540145 000Mytilidae, unident....................5540403 0 0 1Nematodes, unident. .................4500001 0 1 0Nephtys cornutafranciscana ...........4810116 2 6 8Oligochaete, unident. ................4880001 13 35 10Philine sp. (A) (SCAMIT) .............5570240 1 0 9Porifera ...........................3600000 ,1 0 0Pyromaia tuberculata ................ 5286094 1 0 0Sarsiellazostericola .................5220091 13 19 11Schistomeringosrudolphi .............4810354 020Sphaerosyllis bilobata ................4810833 1 0 0Sphaerosyllis californiensis ...........4810272 2 1 2Tapesjaponica .....................5540158 000Theora lubrica ......................5540114 1 1 0


Ampelisca abdita ....................5275504 500Anthozoan, unident. ..................3730010 0 24 4Asychis elongata ....................4810565 1 2 1Capitella capitata ...................4810241 0 1 0Corophiumsp(p). ....................5275098 0 1 0Corophiumsp.a ....................5275510 20 1 1Cossura pygodactylata .............. .4810861 000Crepidula sp(p). .....................5570203 3 12 0

000001

410208

21002010I009

28II 0 0 8 0 0 5 0 2

10410045108

27126101

185300

100

17010901380




Laboratorycode


San Leandro

Sampling date: July 27,1988 Continued

Crepidula sp. A (Shrake) .............. 55703310 12 0 2 0Exogone lourei .....................4810066 0 1 0 12 0Glycindepolygnatha .................4810496 45373Harmothoe imbricata ................4810343 01200Hydrozoa, unident. ..................3710052 00001Leitoscoloplospugettensis ............4810516 0 0 1 0 0Marphysa sanguined .................4810248 51200Musculistasenhousia ................5540401 5 248 71 29 12Nematodes, unident. .................4500001 0 0 0 36 3Nephtys cornutafranciscana ...........4810116 00012Philinesp.(A)(SCAMIT) .............5570240 00010Porifera ...........................3600000 01000Pyromaia tuberculata ................5286094 10000Sarsiella zostericola .................5220091 40014Schistomeringos rudolphi .............4810354 01000Sphaerosylliscaliforniensis ...........4810272 00100Slreblospio benedicti .................4810257 01000Tapesjaponica .....................5540158 1 26 7 41


Amaeana occidentalis ................4810001 01000Ampelisca abdita ....................5275504 302 236 297 718 239Asychis elongata ....................4810565 78272Campanularidae, unident. .............3710039 10101Capitellidae, unident. ................4810558 0 0 0 0 1Cirratulidae, unident. ................4810990 10112Corophiumsp.a ....................5275510 328 190 91 11 131Cossura pygodactylata ...............4810861 00221Crepidulaplana..................... 5570204 8 8 5 10 6Crepwfo/flsp(p)...................... 5570203 35504Crepidula sp. A (Shrake) ..............5570331 11123Cryptomya californica ...............5540155 61101Euchone limnicola ...................4810255 12 20 21 6 14Exogone lourei .....................4810066 29 21 21 26 13Glycinde polygnatha .................4810496 7 4 5 5 12Grandidierella japonica ..............5275503 12 8 2 10 12Harmothoe imbricata ................4810343 11102Hemigrapsus oregonensis ............. 5286092 10000Leitoscoloplos pugettensis ............4810516 01000Leucon subnasica ...................5263012 00010Marphysa sanguinea .................4810248 20585Mediomastus sp(p). ..................4810598 10100




Laboratorycode


1 2 3 4 5

San Leandro

Sampling date: September 13,

Melanochlamys diomedea .....Musculista senhousia ........Nematodes, unident. .........Nephtys cornutafranciscana . . .Oligochaete, unident. ........Philine sp. (A) (SCAMIT) .....Phoronis sp(p). .............Platyhelminthid, unident. .....Polydora ligni ..............Porifera ...................Pyromaia tuberculata ........Sarsiella zostericola .........Schistomeringos rudolphi .....Sphaerosyllis californiensis . . .Tapes japonica .............Theora lubrica ..............

Ampelisca abdita ............Amphiuridae, unident. ........Armandia brevis ............Asychis elongata ............Campanularidae, unident. .....Cirratulidae, unident. ........Corophium sp(p). ............Corophium sp. a ............Cossura pygodactylata .......Euchone limnicola ...........Exogone lourei .............Glycinde polygnatha .........Harmothoe imbricata ........Leitoscoloplos pugettensis ....Leucon subnasica ...........Marphysa sanguined .........Melanochlamys diomedea .....Musculista senhousia ........Nematodes, unident. .........Nephtys cornutafranciscana . . .Oligochaete, unident. ........Philine sp. (A) (SCAMIT) .....Platyhelminthid, unident. .....Polydora ligni ..............

........5570248

........5540401

....... .4500001

........4810116

....... .4880001

........5570240

........5700002

........3900001

........4810168

........3600000

........5286094

........5220091

........4810354

....... .4810272

........5540158

........5540114

Sampling date:

........5275504

........5930032

........4810012

....... .4810565

........3710039

........4810990

........5275098

........5275510

........4810861

....... .4810255

....... .4810066

....... .4810496

........4810343

....... .4810516

........5263012

....... .4810248

........5570248

........5540401

........4500001

........4810116

....... .4880001

........5570240

........3900001

........4810168

01

2241

38005

1500

2657

1140

1988 Continued

0102

110206027406

32

00

2564

37012000

16622

18

018186

14100

1913

1381

1023

20

430

51003401

1942

1116

November 2, 1988

2,609001011019

54060030

4318

117

100

2,89601700310

1972

161020

5946

49* 3

10

3,05200900011

21105

240040

91161

119000

2,55610610002

1081

120131

49186

112

102

2,09100

11001

120

1023

061040

16149

019200



Kinnetic IndividualsTaxonomic entry Laboratory __________Replicate number__________

_______________________code______1______2______3______4______5_

San Leandro


Pyromaia tuberculata ................ 5286094 11037Sarsiellazostericola .................5220091 13 9 10 6 10Schistomeringos rudolphi .............4810354 42203Sphaerosyllis californiensis ...........4810272 3 6 10 22Tapesjaponica .....................5540158 27 37 30 15 15Theora lubrica ......................5540114 11 32 18 23 57

San Pablo Deep


Amaeana occidentalis ................4810001 00002Ampelisca abdita ....................5275504 20043Cirratulidae, unident. ................4810990 01000Corophium alienense ................. 5275287 00013Gemma gemma .....................5540400 30000Glycinde polygnatha .................4810496 11103Leucon subnasica ...................5263012 20002Mediomastus sp. ....................4810303 10000Nematodes, unident. .................4500001 20000Odostomia(Evalea)sp.N(Shrake) .....5570321 00006Oligochaete, unident. ................4880001 51108Platyhelminthid, unident. .............3900001 00001Polydora brachycephala ..............4810557 00022Potamocorbula amurensis ............5540214 79 93 117 57 153Pseudopolydora kempi ...............4810640 00100Synidotea laticauda ..................5265110 00002Tapes japonica .....................5540158 00001


Ampelisca abdita ....................5275504 00001Asychis elongata ....................4810565 00010Capitella capitata ...................4810241 00210Gemma gemma ..................... 5540400 00010Glycinde polygnatha .................4810496 11000Nematodes, unident. .................4500001 30000Oligochaete, unident. ................4880001 19 6 2 38 0Potamocorbula amurensis ............5540214 51 59 53 63 33Rhepoxynius sp(p). ..................5275241 10000Scolelepis squamata .................4810589 00001Tapes japonica .....................5540158 00100Tharyxsp. .........................4810595 10030



Kinnetic IndividualsTaxonomic entry Laboratory ___________Replicate number___________

_______________________code______1______2______3______4______5_

San Pablo Deep


Ampelisca abdita ....................5275504 00810Amphiurid, unident. ..................5930014 01000Balanus crenatus ....................5250036 0 1 23 96 15Balanus sp(p). ......................5250002 34000Cerebratulus sp(p). ..................4000014 00100Corophiumsp(p)- ....................5275098 00012Corophiumsp.a ....................5275510 28 91 75 54 99Cryptomya californica ...............5540155 10000Exogone lourei .....................4810066 01000Glycindepolygnatha .................4810496 13642Grandidierellajaponica ..............5275503 01010Harmothoe imbricata ................4810343 00010Hydrozoa, unident. ..................3710052 0 32 0 0 14Musculista senhousia ................ 5540401 00001Nemertea, unident. ..................4000002 20000Odostomia (Evalea) sp. H (Shrake) .....5570314 21002Oligochaete, unident. ................4880001 00110Polydora brachycephala ..............4810557 16 47 8 38 42Polydora ligni ......................4810168 02000Potamocorbula amurensis ............5540214 1 32 13 6 32Sarsiella zostericola .................5220091 11144Scleroplaxgranulata .................5286519 00010Scolelepis sp(p)......................4810316 1 0 0 0 0Stenothoid, unident. ..................5275122 00100Upogebiapugettensis ................5286103 00100


Ampelisca abdita ....................5275504 00100Aporobopyrusmuguensis .............5265041 00200Balanus crenatus ....................5250036 0 0 0 0 22Corophium sp. a ....................5275510 00400Glycinde polygnatha .................4810496 10000Leptochelia dubia ...................5264038 00001Lineidae, unident. ...................4000038 00020Natantia, unident. ...................5286111 10000Odostomia (Evalea) sp. H (Shrake) .....5570314 0 0 1 0 0Odostomia (Evalea) sp. / (Shrake) ...... 5570305 10000Odostomia (Evalea) sp.N(Shrake) .....5570321 10000Philinesp.(A)(SCAMIT) .............5570240 00100Phoronis sp(p). .....................5700002 00 10 0 0Pleusymtes sp(p). ....................5275203 00001Polydora brachycephala ..............4810557 0 2 10 3 1




Laboratorycode


San Pablo Deep


Potamocorbula amurensis ............5540214 30 21 46 01Sarsiella zostericola .................5220091 0 0 0 1 0Upogebiapugettensis ................5286103 00100


Ampelisca abdita ....................5275504 34 15 42 44 39Asychiselongata ....................4810565 00212Balanus crenatus ....................5250036 00107Brachyura, unident. ..................5286098 00100Cerebratulus sp(p). ..................4000014 00100Cirratulidae, unident. ................4810990 00200Corophiumsp.a ....................5275510 104 71 122 111 148Glycindepolygnatha .................4810496 56242Grandidierellajaponica ..............5275503 00001Heteromastusfiliformis ...............4810438 00212Lineidae, unident. ...................4000038 10000Molgula manhattensis ................6301075 0 1 0 00Mysids, unident......................5262006 00100Nematodes, unident. .................4500001 10640Oligochaete, unident. ................4880001 00501Paleanotus bellis ....................4810139 0 0 1 0 0Phoronis sp(p). .....................5700002 1 1 9 0 18Pleusymtes sp(p).....................5275203 01001Polydora brachycephala ..............4810557 15 29 8 1 7Polydora ligni ......................4810168 0 0 18 02Potamocorbula amurensis ............5540214 11 2 17 10 19Pyromaia tuberculata ................5286094 60302Sarsiella zostericola ................. 5220091 10110Synidotea laticauda ..................5265110 00001Tubulanus pellucidus .................400001100010Tubulanus sp(p). ....................4000013 00100Upogebia pugettensis ................5286103 01000


Ampelisca abdita ....................5275504 2 0 5 1 26Balanus crenatus ....................5250036 2 0 12 00Campanularidae, unident.............. 3710039 11100C0r0/?/u'wmsp(p). ....................5275098 10000Corophium sp. a ....................5275510 0 1 3 2 20Cra/igo/i sp(p). ......................5286514 10000Eusyllis transecta ...................4810680 0 0 1 0 0


Table ^. Benthic macrofauna data Continued


Laboratorycode


San Pablo Deep


Glycinde polygnatha .................4810496 346Harmothoe imbricata ................4810343 200Hydrozoa, unident. ..................3710052 0 1 1Molgula manhattensis ................6301075 1 0 7Nematodes, unident. .................4500001 002Odostomia (Evalea) sp. / (Shrake) ......5570317 0 0 1Philine sp. (A) (SCAMIT) .............5570240 1 0 0Phoronis sp(p). .....................5700002 004Pleusymtes sp(p).....................5275203 9 0 1Polydora brachycephala ..............4810557 13 33 7Potamocorbula amurensis ............5540214 12 22 31Pyromaia tuberculata ................5286094 0 0 1Scolelepissp(p). .....................4810316 000Synidotea laticauda ..................5265110 205Theora lubrica ......................5540114 1 0 0

San Pablo Shallow


Ampelisca abdita ....................5275504 85 138 135Asychis elongata ....................4810565 164Corophium alienense ................. 5275287 587Glycinde polygnatha .................4810496 332Heteromastusfiliformis ...............4810438 1 1 2Leucon subnasica ................... 5263012 031Mediomastus sp. ....................4810303 1 1 1Neanthes succinea ...................4810562 1 0 0Nematodes, unident. .................4500001 340Nephtys cornutafranciscana ...........4810116 1 0 0Odostomia (Evalea) sp.N(Shrake) .....5570321 000Oligochaete, unident. ................4880001 34 57 1Platyhelminthid, unident. .............3900001 1 0 0Potamocorbula amurensis ............5540214 74 50 57Pseudopolydora kempi ...............4810640 422Sarsiellazostericola .................5220091 988Streblospio benedicti .................4810257 13 8 5Synidotea laticauda .................. 5265110 1 0 0Tapesjaponica .....................5540158 1 3 0Theora lubrica ......................5540114 1 2 0

200000000

11180100

131456

15500010

520

911

1210001

0000000016

170020

402630400012

370

5525

11020



Kinnetic IndividualsTaxonomic entry Laboratory __________Replicate number_________________________________code______1______2______3______4______5^

San Pablo Shallow


Ampelisca abdita ....................5275504 118 104 427 163Asychis elongata ....................4810565 3 12 0 7Campanularidae, unident..............3710039 0*010Corophium alienense .................5275287 1 6 21 14Corophiumsptp).....................5215098 2 24 75 44Cumella vulgaris ....................5263098 9 2 0 10Glycinde polygnatha .................4810496 2*320Leuconsubnasica ...................5263012 84 14 2 32Macoma sp(p). ......................5540105 0*100Molgula manhattensis ................6301075 0*010Musculistasenhousia ................5540401 1*000Nematodes, unident. .................4500001 4 10 13Nephtys cornutafranciscana ...........4810116 0 1 0 0Odostomia (Evalea) sp. / (Shrake) ..... .5570305 0*001Oligochaete, unident. ................4880001 50 89 44 41Polynoid, unident. ...................4810936 0*010Potamocorbula amurensis ............5540214 36 52 74 57Pseudopolydorakempi ...............4810640 3*050Sarsiellazostericola .................5220091 9 7 17 15Solen sicarius ..................... .5540416 2*000Solenidae, unident. ..................5540219 0*001Streblospio benedicti ................ .4810257 16 5 11 13Tapesjaponica .....................5540158 4*346Theora lubrica ......................5540114 4*102Upogebiapugettensis ................5286103 0*010


Ampelisca abdita .................... 5275504 791 1,013 545 971 924Asychis elongata ....................4810565 48255Capitella capitata ...................4810241 12020Corophiumsp(p).....................5215098 5 8 9 6 15Corophiumsp.a ....................5275510 18 25 19 34 30Crangon nigricauda ................. 5286120 00100Eudorellapacifica ...................5263112 11000Gemma gemma .....................5540400 00100Glycinde polygnatha .................4810496 7 11 11 18 12Harmothoe imbricata ................4810343 00233Harpacticoidcopepod,umfant. ........5230052 00001Leitoscoloplos pugettensis ............4810516 00010




Laboratorycode


San Pablo Shallow


Leuconsubnasica ...................5263012 8 17 14 16 6Musculistasenhousia ................5540401 00221Nematodes, unident. .................4500001 6 27 4 25 1Neomediomastus sp(p). ...............4810865 00010Nephtys cornutafranciscana ...........4810116 0 1 0 1 1Odostomia(Evalea)sp.I(Shrake) ......5570317 00100Odostomia(Evalea)sp.N(Shrake) .....5570321 00001Oligochaete, unident. ................4880001 15 15 0 9 12Parapleustesderzhavini ..............5275293 00020Phittne sp. (A) (SCAMIT) .............5570240 10000Potamocorbula amurensis ............5540214 447 491 355 457 526Sarsiellazostericola .................5220091 18 18 7 68Sphaerosylliscaliforniensis ...........4810272 10000Streblospio benedicti .................4810257 12000Tapesjaponica .....................5540158 18032Theora lubrica ......................5540114 00550Upogebia pugettensis ................ 5286103 00021


Ampelisca abdita .................... 5275504 208 276 159 191 278Asychiselongata ....................4810565 46475Campanularidae, unident.............. 3710039 01000Capitella capitata ...................4810241 00110Corophiumsp(p). ....................5275098 32414Corophiumsp.a ....................5275510 10 10 7 96Ctenostomate, unident. ............... 5600114 01000Glycinde polygnatha .................4810496 7 11 7 13 11Grandidierellajaponica ..............5275503 00010Harmothoe imbricata ................4810343 10000Heteromastusfiliformis ...............4810438 03001Leitoscoloplospugettensis ............4810516 1 0 0 1 0Leuconsubnasica ...................5263012 05114Melanochlamys diomedea .............5570248 00100Musculista senhousia ................ 5540401 30212Nematodes, unident. .................4500001 04000Nephtys cornutafranciscana ...........4810116 0 0 0 4 2Odostomia(Evalea)sp.H(Shrake) .....5570314 10113Oligochaete, unident. ................4880001 05000Pleusymtes sp(p).....................5275203 10000


Table 3 Benthic macrofauna data Continued


Laboratorycode


San Pablo Shallow


Potamocorbula amurensis ............5540214 378 263 238 459 499Pseudopolydorakempi ...............4810640 11201Sarsiellazostericola .................5220091 15 23 13 10 12Sphaerosyllis californiensis ...........4810272 01000Streblospio benedicti .................4810257 02010Tapesjaponica .....................5540158 17311Theoralubrica ......................55W114 11012


Ampelisca abdita .................... 5275504 165 213 163 155 199Asychis elongata ....................4810565 54854Bivalvia, unident.....................5540210 00020Campanularidae.umtent. .............3710039 01000Capitella capitata .................. .4810241 11022Corophiumsp.a ....................5275510 45 44 41 16 28Exogone lourei .....................4810066 02200Glycindepolygnatha .................4810496 63453Harmothoe imbricata ................4810343 00100Hydrozoa, unident. ..................3710052 01100Leitoscoloplospugettensis ............4810516 0 0 1 1 0Leucon subnasica ................... 5263012 26320Lineidae, unident. ...................4000038 01000Mediomastus sp. ....................4810303 00001Musculista senhousia ............... .5540401 11121Nematodes, unident. .................4500001 0 40 17 00Nephtys caecoides .................. .4810114 00001Nephtyscornutafranciscana ...........4810116 0 0 3 2 0Odostomia(Evalea) sp. H(Shrake) .....5570314 01000Oligochaete, unident. ................4880001 0 13 13 11Philine sp. (A) (SCAMIT) .............5570240 20010Pleusymtes sp(p).....................5275203 02000Potamocorbula amurensis ............5540214 366 455 356 429 430Pseudopolydora kempi .............. .4810640 00100Sarsiella zostericola ................ .5220091 16 21 18 16 13Sphaerosyllis californiensis ...........4810272 00001Streblospio benedicti ................ .4810257 01101Tapes japonica .....................5540158 34014Theora lubrica ..................... .5540114 20131




Laboratorycode


San Pablo Shallow


Ampeliscaabdita ....................5275504 415 300 335Asychis elongata ....................4810565 23 5 3Campanularidae, unident..............3710039 111Capitella capitata ...................4810241 1 0 1Corophiumsp.a ....................5275510 35 49 43Euchone limnicola ...................4810255 1 0 0Eudorellapacifica ...................5263112 0 1 0Exogont lourei .....................4810066 1 0 0Glycindepolygnatha .................4810496 10 3 4Heteromastusfiliformis ...............4810438 000Hydrozoa, unident. ..................3710052 000Leuconsubnasica ...................5263012 333Magelona sacculata .................4810102 0 1 0Mediomastussv. ....................4810303 040Natantia, unident. ...................5286111 000Nematodes, unident. .................4500001 2 1 4Nephtys caecoides ...................4810114 000Nephtys cornutafranciscana ...........4810116 1 0 2Nephtys sp(p). ......................4810579 000Odostomia sp(p). ....................5570075 1 0 0Oligochaete, unident. ................4880001 0 8 11Philine sp. (A) (SCAMIT) .............5570240 0 1 2Pleusymtes sp(p).....................5275203 1 0 0Polydoraligni ......................4810168 0 0 1Potamocorbulaamurensis ............5540214 204 146 114Pyromaia tuberculata ................5286094 1 0 1Sarsiellazostericola .................5220091 14 6 7Scolelepis squamata .................4810589 000Streblospio benedicti .................4810257 0 1 0Tapesjaponica .....................5540158 0 0 1Theoralubrica ......................5540114 1 1 2

South Bay Deep


Amaeana occidentalis ................4810001 1 1 0Ampelisca abdita ....................5275504 423Ampto>;w/wsp(p).................... 5930041 0 1 0Amphiuridae, unident. ................ 5930032 1 0 1Anaitides longipes ...................4810505 0 0 1Anthozoan, unident................... 3730010 100 32 221Asychis elongata ....................4810565 21 14 18

312717

200009104001

581000

38100

202190001

22210

9216

168110

170004010001100160200

129021000

2160006

20




Laboratorycode 1


2 3 4 5

South Bay Deep


Bivalvia, unitent. ....................5540210 10000Campanularidae, unident..............3710039 01101Capitella capitata ...................4810241 21531Capitellidae, unident. ................4810558 10002Caprellasp(p). ......................5275117 10000Cerebratulus sp(p). ..................4000014 30110Cirratulidae, unident. ................4810990 00010Corophium alienense ................. 5275287 230116Cossura pygodactylata ...............4810861 44540Cryptomya californica ...............5540155 01100Edwardsiasipunculoides .............3730022 00100Epitonium sp........................5570117 20110Euchone limnicola ...................4810255 00003Eudorella pacifica ...................5263112 0 2 0 10Eusyllis transecta ...................4810680 01000Exogone lourei .....................4810066 70 183 77 180 27Gemma gemma .....................5540400 02050Glycinde polygnatha .................4810496 6 11 10 8 3Hemigrapsus oregonensis ............. 5286092 00100Hesperonoe sp(p). ...................4810090 10000Leptocheliadubia ...................5264038 11 3 13 15 1Mediomastus sp. ....................4810303 15 19 12 10 7Modiolus sp(p). .....................5540409 10020Molgula manhattensis ................6301075 02010Afyasp(p). .........................5540124 00001Mysella sp(p). ......................5540137 00010Nematodes, unident. .................4500001 3 6 3 34 1Neomediomastus sp(p), ...............4810865 00020Nephtys cornutafranciscana ...........4810116 64321Notomastus sp.......................4810389 00101Oligochaete, unident. ................4880001 2 9 16 26 3Paleanotus bellis ....................4810139 00100Philine sp. (A) (SCAMIT) .............5570240 00100Pleusymtes sp(p).....................5275203 20100Polydora brachycephala ..............4810557 00001Polydora socialis ....................4810940 10000Pycnogonum stearnsi ................5202014 00010Sarsiella zostericola ................. 5220091 76686Schistomeringos rudolphi .............4810354 20223Sphaerosyllis bilobata ................4810833 01100Sphaerosyllis californiensis ...........4810272 84620Tapesjaponica .....................5540158 04051Tharyxsp. .........................4810595 02000




Laboratorycode 1

South Bay Deep


2 3 4 5

Sampling date: January 13, 1988 Continued

Theora lubrica ..............Tubulanus sp(p). ............

Amaeana occidentalis ........Ampelisca abdita ............Amphiuridae, unident. ........Anaitides longipes ...........Anthozoan, unident. ..........Asychis elongata ............Campanularidae, unident. .....Capitella capitata ...........Cerebratulus sp(p). ..........Cirriformia spirabrancha .....Corophium alienense .........Cossura pygodactylata .......Crepidula plana .............Cryptomya californica .......Ctenostomate, unident. .......Edwardsiidae, unident. .......Epitonium sp. ...............Eudorella pacifica ...........Euphilomedes sp(p). .........Exogone lourei .............Glycinde polygnatha .........Hesperonoe sp(p). ...........Leptochelia dubia ...........Lineidae, unident. ...........Mediomastus sp(p). ..........Modiolus sp(p). .............Musculista senhousia ........Mysella sp(p). ..............Nematodes, unident. .........Nephtys cornutafranciscana . . .Notomastus sp. ..............Oligochaete, unident. .......Paraonidae, unident. .........Pettiboneia sanmatiensis .....Pholoe glabra .............Phoronis sp(p). .............Porifera ...................Sarsiella zostericola .........

........5540114 2

........4000013 0

Sampling date: March 8,

....... .4810001 0

........5275504 1

........5930032 0

........4810505 0

........3730010 8

........4810565 46

........3710039 1

....... .4810241 0

....... .4000014 0

....... .4810854 0

........5275287 1

....... .4810861 6

........5570204 1

........5540155 0

........5600114 0

........3730045 0

........5570117 0

........5263112 1

........5220069 0

....... .4810066 158

........4810496 3

........4810090 0

........5264038 11.........4000038 0.........4810598 5.........5540409 0.........5540401 2.........5540137 0.........4500001 15.........4810116 4........ .4810389 0........ .4880001 2.........4810708 0.........4810552 0........ .4810442 0.........5700002 0.........3600000 0.........5220091 9

00

1988

10005

1610013

120201100

1475060

12101

3840100011

14

11

02012

351230260000010

22970

100

10100

14401000008

20

15104

3200200

140001010

226312040133612101009

00

0500

1325

1000140010001

13610315000520004000

11




Laboratorycode


South Bay Deep

Sampling date: March 8,1988 Continued

Schistomeringos rudolphi .............4810354 04271Sphaerosyllis bilobata ................4810833 10001Sphaerosyllis californiensis ...........4810272 6 9 11 10 2Tapesjaponica .....................5540158 5 5 10 27Tharyx sp(p). .......................4810319 11100Theora lubrica ......................5540114 20031Transennella tantilla .................5540189 01000Tubulanussv(v). ....................4000013 31113Upogebiapugettensis ................5286103 00100


Ampelisca abdita .................... 5275504 424 290 300 378 115Anaitides longipes ...................4810505 01002Anthozoan, unident. ..................3730010 1 2 0 11 6Arabellid, unident. ...................4810281 01000Asychiselongata ....................4810565 47 54 55 16 15Campanularidae, unident..............3710039 00110Cancerproductus ...................5286083 00001Cirriformiaspirabrancha .............4810854 02011Corophiumsv.a ....................5275510 319 218 135 31 42Cossura pygodactylata ...............4810861 10000Crassostraea virginica ...............5540195 00010Cryptomya californica ...............5540155 01000Edwardsiidae, unident. ...............3730045 10000Eudorellapacifica ...................5263112 32446Exogone lourei .....................4810066 54 43 54 116 26Gastropoda, unident. .................5570885 00010Glycindepolygnatha .................4810496 10 8 7 8 4Harmothoe imbricata ................4810343 00001Leptocheliadubia ...................5264038 3 4 5 7 16Leucon subnasica ...................5263012 01011Lineidae, unident. ...................4000038 10000Macoma sp(p).......................5540105 01000Mediomastus sp. ....................4810303 02230Molgula manhattensis ................6301075 00001Musculista senhousia ................5540401 46021Nephtys commafranciscana ...........4810116 3 11 5 7 3Oligochaete, unident. ................4880001 31000Philinesp.(A)(SCAM]T) .............5570240 41403Pholoides aspera ....................4810570 00010Phoronis sp(p). .....................5700002 00020Potamocorbula amurensis ............5540214 20000




Laboratorycode


South Bay Deep


Pseudopolydorapaucibranchiata ...... .4810347 000Pycnogonida, unident. ................ 5202006 000Pygodelphys aquilonaris .............. 5230174 000Pyromaia tuberculata ................ 5286094 0 1 1Rictaxispunctocaelatus . ..............5570083 010Sabellariasp(p). ....................4810190 000Sarsiella zostericola ................. 5220091 12 7 7Schistomeringos rudolphi .............4810354 031Sc0/«/«pwsp(p)......................4810316 0 0 1Sphaerosyllis bilobata ................4810833 200Sphaerosyllis californiensis ...........4810272 340Tapesjaponica .....................5540158 13 13 22Theora lubrica ......................5540114 0 1 1Tubulanus sp(p). ....................4000013 0 0 1Upogebia pugettensis ................ 5286103 0 0 1


Acmiralopezilopezi .................4810853 000Amaeana occidentalis ................4810001 101Ampelisca abdita ....................5275504 30 14 31Amphipholissp(p).................... 5930041 000Amphiuridae, unident. ................ 5930032 000Anthozoan, unident. ..................3730010 4 1 0Arabellid, unident....................4810281 000Asddiacea, unident. .................6301008 1 0 0Asychis elongata ....................4810565 5 35 12Balanus crenatus ....................5250036 3 1 0Bivalvia, unident.....................5540210 1 0 0Campanularidae, unident.............. 3710039 1 1 1Capitella capitata ...................4810241 000Cerebratulus sp(p). ..................4000014 000Cheilostomata unident. ...............5600177 1 1 1Cirrifornda spirabrancha .............4810854 OilCorophiumsp(p). ....................5275098 1 2 1Corophiumsp.a ....................5275510 111 79 34Euchone limnicola ...................4810255 0 1 1Eudorellapacifica ...................5263112 000Eusyllis transecta ...................4810680 1 0 0Exogone lourei .....................4810066 10 6 1Gemma gemma .....................5540400 000Glycera sp(p). ......................4810079 0 1 0Glycinde polygnatha .................4810496 202

10010I

II 3 0 1 3

20 0 0 0

11400600

2100000001

270111401

02100002000

15001

01

3611210

4110113001

137101

15002




Laboratorycode


South Bay Deep


Harmothoe imbricata ................4810343 1 0 0Heteromastusfiliformis ...............4810438 040Hydrozoa, unident. ..................3710052 1 1 1Leptocheliadubia ...................5264038 14 4 2Leuconsubnasica ...................5263012 000Lineidae, unident. ...................4000038 002Molgula manhattensis ................6301075 000Musculistasenhousia ................5540401 100Mysellasp. (A) (SCAMIT)............. 5540212 000Nematodes, unident. .................4500001 000Nemertea, unident. ..................4000002 000Neomediomastus sp(p). ...............4810865 0 0 1Nephtys cornutafranciscana ...........4810116 1 1 1Nephtysferruginea ..................4810706 000Philine sp. (A) (SCAMIT) .............5570240 2 3 1Pholoeglabra ......................4810442 0 1 0Phoronissp(p). .....................5700002 000Polydora sp(p). .....................4810588 1 0 0Porifera ...........................3600000 000Pycnogonum stearnsi ................ 5202014 000Pyromaia tuberculata ................5286094 0 1 0Sarsiellazostericola .................5220091 11 1 7Schistomeringos rudolphi .............4810354 1 0 2Sphaerosyllis bilobata ................4810833 000Sphaerosylliscaliforniensis ...........4810272 000Synidotea laticauda ..................5265110 000Tapesjaponica .....................5540158 333Theora lubrica ......................5540114 0 0 1Tubulanusspfy). ....................4000013 000


Amaeana occidentals ................4810001 000Ampelisca abdita ....................5275504 933Amphipholisspft).................... 5930041 000Anthozoan, unident. .................. 3730010 5410Armandia brevis ....................4810012 000Asychis elongata ....................4810565 25 11 20Autolytus sp(p). .....................4810277 335Balanus crenatus .................... 5250036 300Brachyuran zoea .................... 5286063 0 1 0Campanularidae, unident.............. 3710039 1 1 1Capitella capitata ...................4810241 020

181

121

26180010

011

151003310011100000422110621

070

220

22110011

BENTIflC MACROFAUNA DATA 47



Laboratorycode 1


2 3 4 5

South Bay Deep


Capitellidae, unident. ................4810558 0Cerebratulus sp(p). ..................4000014 0Cirratulidae, unident. ................4810990 0Corophium sp. a ....................5275510 0Cossura pygodactylata ...............4810861 2Crepidula sp(p)......................5570203 0Dorvilleidae, unident. ................4810583 3Edwardsiidae, unident. ...............3730045 0Eudorella pacifica ...................5263112 0Eusyllis transecta ...................4810680 0Exogone lourei .....................4810066 50Glycera robusta .....................4810532 0Glycinde polygnatha .................4810496 6Granulina margaritula ............... 5570042 1Harmothoe imbricata ................4810343 2Heteromastusfiliformis ...............4810438 0Hydrozoa, unident. ..................3710052 1Leitoscoloplos pugettensis ............4810516 0Leptochelia dubia ................... 5264038 26Leucon subnasica ...................5263012 0Mediomastus sp(p). ..................4810598 2Modiolus sp(p). .....................5540409 0Molgula manhattensis ................6301075 13Musculista senhousia ................ 5540401 5Mytilus edulis ......................5540024 0Neanthes succinea ...................4810562 0Nematodes, unident. .................4500001 0Nephtys cornutafranciscana ...........4810116 3Nudibranchia, unident. ...............5570976 0Odostomia (Evalea) sp. H (Shrake) ..... 5570314 0Oligochaete, unident. ................4880001 3Philine sp. (A) (SCAMIT) ............. 5570240 0Pholoides aspera ....................4810570 0Phoronis sp(p). .....................5700002 0Platyhelminthid, unident. ............. 3900001 1Pleusymtes sp(p).....................5275203 0Polydora brachycephala ..............4810557 0Polydora ligni ......................4810168 4Potamocorbula amurensis ............5540214 0Proceraea sp(p). ....................4810713 8Pseudopolydorapaucibranchiata .......4810347 1Pyromaia tuberculata ................ 5286094 1Sarsiella zostericola ................. 5220091 1

0001203000

550302210

130001010

121002103011300021

0200310001

770602010

20030

22000

203103300000103244

0010000000

601300010

21040510221001501020008000

1100000111

550700011

26101

11100

19101102001001

10037



Taxonomic entryKinnctic

Laboratorycode


South Bay Deep


Schistocomus sp. A ..................4810892 000Schistomeringos rudolphi .............4810354 020Sphaerosyllis californiensis ...........4810272 988Tapesjaponica .....................5540158 644Theora lubrica ......................5540114 0 1 5Thysanocardia nigra .................4000039 0 1 0Tubulanuspellucidus................. 4000011 1 2 1


Acmira catherinae ...................4810671 000Amaeana occidentalis ................4810001 000Ampelisca abdita ....................5275504 0 1 1Amp%/w/wsp(p).................... 5930041 1 1 2Amphiuridae, unident. ................ 5930032 0 1 0Amhozoan, unident. .................. 3730010 37 52 21Asychis elongata ....................4810565 30 29 51Autolytus sp(p). .....................4810277 1 0 0Brachyuran zoea .................... 5286063 0 1 0Campanularidae, unident..............3710039 1 1 1Capitella capitata ...................4810241 002Cerebratulus sp(p). ..................4000014 002Cirratulidae, unident. ................4810990 400Cirriformia spirabrancha .............4810854 001Corophium sp. a ....................5275510 0 1 8Cossura pygodactylata ...............4810861 1 0 0Crepidulasp(v). .....................5570203 0 2 1Cryptomya californica ............... 5540155 4 2 40Dorvilleidae, unident. ................4810583 0 0 1Epitonium sp. ....................... 5570117101Euchone limnicola ...................4810255 100Eudorella pacifica ...................5263112 0 0 1Eusyllis transecta ...................4810680 0 2 1Exogone lourei .....................4810066 92 124 93Glycera sp(p). ......................4810079 0 1 0Glycinde polygnatha .................4810496 5 1 4Harmothoe imbricata ................4810343 1 1 1Harpacticoid copepod, unident. ........ 5230052 021Hemigrapsus oregonensis ............. 5286092 000Leitoscoloplospugettensis ............4810516 100Leptochelia dubia ................... 5264038 38 33 19Lineidae, unident. ...................4000038 000Macoma sp(p).......................5540105 1 0 4

114016

540011000000100000

36212000200

014009

290010001010001003

24133010

1210


Table \-Benthic macrofauna data Continued


Laboratorycode


South Bay Deep


Mediomastus sp. ....................4810303 0 1 0Modiolus sp(p). .....................5540409 0 0 1Molgula manhattensis ................6301075 105 155 106Musculistasenhousia ................5540401 29 113 80Mysellasp.(A)(SCAMIT)............. 5540212 0 0 1Mytilusedulis ......................5540024 003Natantia, unident. ...................5286111 000Nematodes, unident. .................4500001 12 89 104Nephtys cornutafranciscana ...........4810116 8 9 15Nuculanaoxia ......................5540197 0 0 1Oligochaete, unident. ................4880001 560Philinesp,(A)(SCAMJT) .............5570240 560Pholoeglabra ......................4810442 1 0 0Phoronis sp(p). .....................5700002 0 0 10Platyhelminthid,witent. .............3900001 622Polydora brachycephala ..............4810557 1 0 0Polydora ligni ......................4810168 000Polydorasocialis ....................4810940 000Potamocorbula amurensis ............5540214 010Proceraea sp(p). ....................4810713 200Pygodelphys aquilonaris ..............5230174 101Pyromaia tuberculata ................5286094 111Sarsiellazostericola .................5220091 240Schistomeringos rudolphi .............4810354 004Sphaerosyllis bilobata ................4810833 0 1 0Sphaerosyllis californiensis ...........4810272 10 5 8Tapesjaponica .....................5540158 576Theora lubrica ......................5540114 6 10 24Thysanocardia nigra .................4000039 1 0 1Tubulanus sp(p). ....................4000013 848Upogebiapugettensis ................5286103 0 0 1

20

286001960220000110001000324040

30

301120176001100000000640032

14090

50 BENTHIC MACROFAUNA AND ANCILLARY DATA. SAN FRANCISCO BAY. CALIFORNIA

Table 4. Summary ofbenthic macrofauna data

Replicate Taxonomic Species No. entries identified

Berkeley

Individuals

Sampling date: January 12, 19881 222 243 254 185 24

Mean number of species identified per sample: 18Mean number of individuals per sample: 390

Sampling date: March 8,1 92 163 304 205 17


Sampling date: May 31,1 292 173 224 225 17


Sampling date: July 28,1 202 213 204 155 11


Sampling date: September1 192 173 234 195 26


Sampling date: November1 202 263 134 175 16

1619211418

,198889

171411

19882214161714

1988141316109

13, 19881111141619

1, 19881520

81112

488499319109534

1088

128217217

359171127452259

39815657

125142

125220430

92472

183671

8833

125Mean number of species identified per sample: 13 Mean number of individuals per sample: 220

SUMMARY OF BENTHIC MACROFAUNA DATA 51

Table 4. Summary ofbenthic macrofauna data Continued

Replicate Taxonomic SpeciesNo. entries identified Individuals

Coyote Point

Sampling date: January 13,19881 19 16 4272 20 17 4283 20 17 3874 17 15 2995 16 15 258


Sampling date: March 8,19881 23 20 2222 21 18 1863 17 14 29945 16 13 147

Mean number of species identified per sample: 16 Mean number of individuals per sample: 214

Sampling date: May 31,19881 20 18 6802 17 16 6153 23 22 6594 23 22 8355 25 24 683


Sampling date: July 25,19881 17 16 1182 22 17 1893 20 16 1514 26 21 1735 13 10 85


Sampling date: September 14,19881 35 27 1,0682 34 28 1,0533 36 29 1,2714 40 36 1,1765 32 25 940

Mean number of species identified per sample: 29 Mean number of individuals per sample: 1,102

Sampling date: November 2,19881 39 29 2,5412 35 28 1,8773 35 27 2,4254 40 34 3,2265 35 29 2,413


52 BENTfflC MACROFAUNA AND ANCILLARY DATA, SAN FRANCISCO BAY, CALIFORNIA

Table 4. Summary ofbenthic macrofauna data Continued.


Grizzly Bay

Sampling date: January 11, 19881 4 326 535 447 654 3


Sampling dale: March 14, 19881 7 626 535 446 555 4


Sampling date: May 23, 19881 4 323 235 445 454 3

Mean number of species identified per sample: 3 Mean number of individuals per sample: 1 76

Sampling date: July 21, 19881 3 324 333 344 353 3


Sampling date: September 12, 19881 4 424 435 548 657 4


Sampling date: October 31, 19881 5 326 53 6 347 555 4

Individuals

202197217277196

177347176253309

162157186151225

7951

223100109

186145167224260

260212222259231


SUMMARY OFBENTHIC MACROFAUNA DATA 53



Palo Alto

Sampling date: January 14, 19881 19 142 19 153 17 134 17 135 17 13

Mean number of species identified per sample: 14Mean number of individuals per sample: 2,68 1

Sampling date: March 7, 19881 21 182 19 163 22 174 20 165 20 16

Mean number of species identified per sample: 1 7Mean number of individuals per sample: 1 ,54 1

Sampling date: May 26, 19881 27 232 26 233 28 234 25 215 23 19

Mean number of species identified per sample: 22Mean number of individuals per sample: 4 ,642

Sampling date: July 26, 19881 20 172 22 203 21 194 20 165 21 20

Mean number of species identified per sample: 18Mean number of individuals per sample: 1 ,7 1 1

Sampling date: September 14, 19881 22 192 34 283 25 214 28 245 28 24

Mean number of species identified per sample: 23Mean number of individuals per sample: 4,394

Sampling date: November 2, 19881 19 172 25 233 24 224 20 185 28 24

Individuals

1,5052,5393,2193,1183,025

1,4081,4371,3801,7791,701

5,1373,6354,7425,2244,470

1,5721,5261,7351,9781,743

3,8084,9073,8225,6303,804

2,7863,6094,3183,1822,403



Table 4. Summary ofbenthic macrofauna data Continued.


San Leandro

Sampling date: January 13, 19881 15 122 22 173 21 184 22 205 20 16


Sampling date: March 8, 19881 16 122 16 133 17 144 17 145 20 17



Mean number of species identified per sample: 14Mean number of individuals per sample: 1 79

Sampling date: July 27, 19881 10 92 16 133 10 94 13 105 12 9

Mean number of species identi f ied per sample: 1 0Mean number of individuals per sample: 124

Sampling date: September 13, 19881 28 212 24 213 27 194 26 235 28 21


Sampling date: November 2, 19881 20 162 23 193 18 164 23 195 19 16

Individuals

111547471349443

142233104308168

123246

63144319

4933893

10236

1,095578806942605

2,8243,2183,5412,9652,439





San Pablo Deep

Sampling date: January 12, 19881 8 524 234 344 45 12 10


Sampling date: March 15, 19881 6 223 234 346 453 3




Sampling date: July 20, 19881 5 422 239 843 255 4


Sampling date: September 13, 19881 10 729 73 20 124 . 10 95 15 12


Sampling date: November 1, 19881 14 1126 43 16 1146 556 5


Individuals

9596

12064

186

766658

10735

56217138208213

3423766

26

179127245178252

5162883572



ReplicateNo.

Taxonomic entries

Species identified Individuals

San Pablo Shallow

12 3 4 5

Sampling date: 18 15 12 13 13

January 12, 1988 14 12 10 12 12

239 294 225 334 170


Sampling date: March 14,19881 17 14 34823 16 12 3344 16 11 6875 15 11 409


Sampling date: May 31,19881,325 1,647

978 1,569 1,549

635622443703831

614814635643690

715 531 535 673 335



1 162 153 154 205 17

Mean number of species identified per sample: 13 Mean number of individuals per sample: 1 ,4 14




Mean number of species identified per sample: 1 3 Mean number of individuals per sample: 679


1312131613

19881313131614

13, 19881213151413

1, 1988131214138



South Bay Deep

Individuals

Sampling date: January 13, 19881 282 263 304 315 22

Mean number of species identified per sample: 1 7Mean number of individuals per sample: 3 14

Sampling date: March 8,1 232 283 254 285 23


Sampling date: May 25,1 202 263 194 265 22

Mean number of species identified per sample: 1 8Mean number of individuals per sample: 619




Mean number of species identified per sample: 2 1Mean number of individuals per sample: 204



1519191914

19881616161615

19881621152020

19881615152425

14, 19881925191823

1, 19882221262022

280319415433123

292295365347234

910679607632265

208162107113293

195154239199232

427669633185195

58 BENTfflC MACROFAUNA AND ANCILLARY DATA, SAN FRANCISCO BAY, CALIFORNIA

Table 5. Ancillary data

[Salinity is reported without traditional units, in accordance with the practical salinity scale of 1978 (Lewis, 1980). Abbreviations: m, meters; °C, degrees Celsius, }imole/L, micromoles per liter; mg/L, milligrams per liter. , no data]

Station name

Depth (m)

Temper ature Salin

ity

Sampling date: JanuaryGrizzly BaySuisun Bay

Honker Bay

Chipps Island

1.01.0

11.01.05.31.0

10.0

8.08.38.17.77.77.87.8

4.106.15

12.921.681.630.430.42

Sampling date: JanuarySan Pablo Deep

San Pablo ShallowPoint San PabloBerkeleyBay BridgeSan Mateo Bridge

1.08.01.00.01.00.00.0

8.19.68.6

10.1

29.07

17.2125.4619.1920.6527.0024.11

Sampling date: JanuarySan LeandroSouth Bay Deep

Coyote PointRedwood Creek

1.01.08.01.01.0

12.0

9.29.4

9.49.59.3

29.3327.8928.7629.0028.2128.76

Sampling date: JanuarySan Mateo BridgeBay BridgePoint San PabloPalo Alto

0.00.00.01.0

9.5

28.7927.4020.8325.81

Sampling date: MarchPalo Alto 1.0 16.1 24.14

Sampling date: MarchRedwood Creek

San Mateo BridgeSan LeandroSouth Bay Deep

BerkeleyBay BridgeCoyote Point

1.013.00.01.01.07.51.00.01.0

14.414.2

14.113.713.613.5

14.1

26.4226.8026.8827.2428.2828.3429.5730.0928.27

Dissolved oxygen (jLimole/L)

Mean

11,1988

338.6332.1312.3334.5333.6330.5330.0

12, 1988306.9279.8306.8

280.9

13, 1988

274.8277.5273.0278.9277.6274.8

14, 1988

279.8

7, 1988437.3

8, 1988304.1282.8

290.0268.5261.5251.0

275.2

Range (+)

0.30.50.00.80.10.30.1

0.30.10.1 0.5

0.20.50.10.30.40.6

0.2

1.2

0.60.1 0.10.10.10.5 0.4

Mean dissolved oxygen

(percent satu

ration)

94.194.292.090.890.589.289.1

93.092.595.3

94.9

92.392.891.894.192.8

92.5

164.8

112.2104.2

106.998.896.192.7

102.1

Suspended paniculate

matter concen tration (mg/L)

25.923.7

78.294.4

118.1147.6

8.811.019.7

16.6

24.46.6

26.315.823.156.1

11.1

18.8

21.468.1

21.47.4

20.720.0_

17.3

ANCILLARY DATA 59

Table 5. Ancillary data Continued

Station name

San Mateo Bridge Bay BridgePoint San PabloSan Pablo ShallowGrizzly Bay

Depth (m)

0.0 0.00.01.01.0

Temper ature

Dissolved oxygen Salin- (pjnole/L)

(°C) ity Mean Range (+)


(percent satu

ration)



Sampling date: March 14, 1988

28.12 30.68

13.715.0

28.03 24.05 265.29.46 292.6

0.20.3

95.198.6

22.713.9

Sampling date: March 15, 1988

San Pablo Deep

Suisun Bay

Honker Bay

Chipps Island

1.08.51.0

11.01.06.51.0

13.5

13.213.113.813.613.813.713.913.8

27.03 258.627.18 257.620.37 263.021.80 259.811.67 282.711.31 283.39.28 285.8

11.27 279.7

0.10.20.40.70.20.5

0.9

93.492.992.391.694.193.894.192.8

42.079.625.250.053.054.346.347.0

Sampling date: May 23, 1988

Grizzly Bay 1.0 19.3 9.11 261.6 0.6 96.0 82.2


Chipps Island

Honker Bay

Suisun Bay

San Pablo Deep

Point San Pablo

1.08.01.06.01.09.01.06.50.0

19.319.119.219.218.418.417.9

3.60 260.05.43 254.96.01 255.75.88 256.1

15.61 240.919.23 225.022.29 237.626.18 227.327.15

0.40.10.30.70.20.20.30.1

92.391.292.092.090.386.291.8

30.989.632.638.013.6

106.014.031.8


South Bay Deep

San LeandroSan Mateo Bridge

1.08.51.00.0

17.016.217.3

28.29 224.1 215.5

29.85 233.428.14

0.40.50.5

89.284.693.3

21.232.137.9


Palo AltoRedwood Creek

1.01.0

12.0

18.518.017.8

25.99 195.029.57 220.729.65 219.5

0.60.00.1

77.989.288.4

23.621.569.9

Sampling date: May 31, 1988Coyote PointBay BridgeBerkeleyPoint San PabloSan Pablo Shallow

1.00.01.00.01.0

16.6

17.4

30.24 236.731.22 30.27 238.328.03 24.65 239.6

0.3 0.6 0.1

93.5

93.0

106.3

39.4

87.5



Station name

Depth (m)

Temper ature <°C)

Salin ity

Dissolved oxygen (jimole/L)

Mean Range (+)


(percent satu

ration)



San Pablo Deep

Grizzly Bay

Chipps Island Coyote Point Honker Bay Suisun Bay San Pablo Shallow Point San Pablo South Bay Deep

Bay Bridge

Palo Alto

Redwood Creek

San Leandro

San Mateo Bridge Berkeley

Grizzly Bay Suisun Bay

Honker Bay

Chipps Island

San Pablo Deep

San Pablo Shallow Point San Pablo Berkeley San Leandro

1.0 8.5

1.0

1.0 1.0 1.0 1.0 1.0 0.0 1.0 8.8 0.0

1.0

I.0II.3

1.0

0.0 1.0

1.0 7.0 1.0 0.0 1.0 1.0


21.7 22.89 21.3 25.23

Sampling date: July 21,1988 20.8 12.54


3.90 21.6

21.0

21.420.5

31.845.35

13.9126.5929.7831.8431.8532.06


25.1 29.53


23.0 31.71 31.93

21.8 31.84


31.90 18.5 31.90

Sampling date: September 12,19881.01.07.01.07.51.0

12.0

19.319.1

19.619.719.7

12.0717.6218.779.299.527.839.05

255.3244.0241.1254.6254.6256.6257.4

0.00.30.10.20.70.81.0

Sampling date: September 13,1988 18.9 24.78

25.0625.6429.1531.7132,90

234.0234.6236.9

228.9221.7

0.30.40.2 0.30.0

93.6

35.7129.0

66.6

44.321.144.133.848.7

43.670.6

16.3

25.444.070.7

34.3

95.493.9

94.194.494.2

52.751.468.650.669.758.464.8

53.570.988.4

20.318.2

ANCILLARY DATA 61


Station name

Depth (m)

Temper ature

Dissolved oxygen Salin- (nmole/L)

(°C) ity Mean Range (+)


(percent satu

ration)



Sampling date: September 14, 1988

South Bay Deep

Coyote PointPalo Alto

1.07.51.01.0

19.4

19.320.3

32.55 210.732.55 210.132.62 218.929.32 225.6

0.50.90.10.7

89.1

92.495.1

19.032.021.610.6

Sampling date: September 15, 1988

Redwood Creek

San Mateo BridgeBay Bridge

1.012.00.00.0

20.120.1

32.47 207.832.48 208.032.56 32.23

0.70.3

88.989.0

32.650.3

Sampling date: October 31, 1988Grizzly BaySuisun Bay

Honker Bay

Chipps Island

1.01.0

10.01.06.51.0

13.5

16.116.515.7

11.83 271.915.58 265.419.40 251.37.98 271.8

11.44 265.15.55 275.49.34 266.4

0.00.6 0.30.30.30.3

95.195.791.3

14.727.546.211.825.811.322.7

Sampling date: November 1, 1988

San Pablo Deep

San Pablo ShallowPoint San PointBerkeleySouth Bay Deep

1.07.81.00.01.01.08.5

15.415.415.6

15.116.516.4

28.57 235.128.86 231.525.73 242.527.63 31.44 241.632.25 224.932.28 218.1

0.10.50.3 0.70.20.1

89.788.591.3

93.389.786.9

21.538.922.3

12.88.2

21.1


Palo AltoRedwood Creek

San LeandroCoyote Point

1.01.0

14.01.01.0

16.916.616.616.316.1

30.08 215.132.33 217.732.34 215.832.32 238.632.48 218.1

0.40.20.00.10.3

85.487.186.394.986.4

13.815.828.610.416.4


San Mateo BridgeBay Bridge

0.00.0

32.42 31.83


Table 6. Summary of sediment grain-size data[The Phi scale is a logarithmic scale developed to make it easier to directly apply conventional statistical practices to sediment-size data. The equivalent

maximum grain sizes in millimeters is shown in parenthesis]

Particle-size distribution of bottom material, in percent

Sampling date

Jan. 12, 1988Mar. 8May 31July 28Sept. 13Nov. 1


Jan. 11,1988Mar. 14May 23July 21Sept. 12Oct. 31




Phi>0 (1.0)

100

_

100

9391

Phi>l (0.50)

100

100100

10010099

100100

100100100100100100

10010010098

100100

1001001009290

100

Phi>2 (0.25)

10099

1009999

1009999999999

999898999999

999897969999

999199758698

Phi>3 Phi>4 (0.125) (0.062)

1009994999892

999898989797

100100100100100100

999796989797

979691959795

864393174891

Berkeley

869082858580

Coyote Point

959289949294

Grizzly Bay

979899989999

Palo Alto

959191939393

San Leandro

888583788790

San Pablo Deep

703792143786

Phi>5 (0.031)

747568727163

858484878486

929396959595

868384868686

797573717776

643590133578

Phi>6 (0.016)

656359646153

747373747373

767887838081

717172727375

696562616766

542884112865

Phi>7 (0.008)

575352565345

656264656263

576268686364

636162616265

625556545755

422272

92453

Phi>8 (0.004)

534845464840

605555565558

515058545452

585254585657

58 5149475451

342058

82046

Phi>9 (0.002)

494138404034

564748484847

404248444643

514446524750

504442404645

281847

71737

San Pablo Shallow



100100100

100100

100100100100100

999998

1009999

1009998989999

839784848867

989895979898

558760647050

828481778691

South Bay Deep

477653516144

757273697583

406545465537

615861596270

335638384831

514852495159

304833344126

444245414650

274330303624

393539333841

243926253120

SUMMARY OF SEDIMENT GRAIN-SIZE DATA 63

Table 7. Cumulative number of species with respect to number of replicates

Cruise NameNumber of replicates

JAN88MAR88MAY88JUL88SEP88NOV88




168

22141115

162018162729

141824171917

Berkeley

251324191525

Coyote Point

192422213434

Grizzly Bay

693475

Palo Alto

162025212824

292125262125

222427233838

162027242927

292329282531

24

31264145

162128243127

292630303032

262635264145

162128253130


Table 7. Cumulative number of species with respect to number of replicates Continued

Number of replicates

Cruise name





1

1212169

2116

52747

11

141413131213

151616161922

2

San Leandro

201518162420

San Pablo Deep

52

1159

12

San Pablo Shallow

15

14171517

South Bay Deep

222224212928

3

221818182520

64

13111415

151520191919

272525223036

4

251920202823

86

15121515

151723211921

282628303540

5

272326212923

128

16141715

161824212122

302732354141

GPO 786-034/39052 CUMULATIVE NUMBER OF SPECIES 65

By Laurence E. Schemel, Allan Y. Ota, Jerry G. Harmon ... · Johnevan M. Shay, and Richard M....

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