Recent Submissions

  • Biological characteristics of the catch from the 1985-86 Pacific herring, Clupea harengus pallasi, roe fishery in California

    Spratt, Jerome D. (California Department of Fish and Game, Marine Resources RegionMonterey, CA, 1986)
    In Tomales Bay, 4-, 5-, and 6-yr-old herring, Clupea harengus pallasi, composed 70% by number of the 1985-86 season's catch. In San Francisco Bay, 2-, 3-, and 4-yr-old herring composed 78% by number of the roundhaul catch, and 4- and 5-yr-old herring composed 64% by number of the gill net catch.The percent of 4-yr-old herring in both the Tomales Bay catch (25% and San Francisco Bay gill net catch (39%) is at a high level for the second year in a row.Recruitment of 2-yr-old herring into the San Francisco Bayroundhaul fishery was about average, with 2-yr-old herringcomposing 33% of the catch.The mean length of herring in the San Francisco Bay roundhaul catch increased to 178 mm BL, while the mean length of the gill net catch remained 196 mm BL. The mean length of the Tomales Bay catch decreased to 198 mm BL due to the increased number of 3- and 4-yr-old herring in the catch. (18pp.)
  • Pacific herring, Clupea harengus pallasi, studies in San Francisco Bay and the Gulf of the Farallones, June 1984 to March 1985

    Reilly, Paul N.; Moore, Thomas O. (California Department of Fish and Game, Marine Resources RegionMenlo Park, CA, 1985)
    Herring stocks were surveyed hydroacoustically and sampled in San Francisco Bay from November 1984 to March 1985. A maximum of 13 schools entered the Bay and spawned between November 1 and March 10, although large schools (greater than 1000 tons) occurred only from mid-December to March. Total biomass estimate from hydroacoustic surveys was approximately 29 500 tons, and it was determined that at least 5500 additional tons were not detected. This is an increase from last season's adjusted total of approximately 25 000 tons. Although different from MRR's biomass estimate from spawn escapement plus commercial landings(40 000 tons in 1983-84 and 46 000 tons in 1984-85), hydroacoustic estimates showed a similar trend of recovering stock biomass.Sixty-six samples, containing a total of 8031 herring, were collected with variable-mesh gill net and midwater trawl or obtained from the roundhaul and gill net fisheries. The usual pattern of decreasing mean length and age of herring as the season progressed was observed.Small schools that spawned in November and December consisted primarily of 3- to 6-yr-old herring. Two-yr olds became a significant part of spawning schools beginning in mid-January. The 1982 and 1983 yr classes(3- and 2-yr olds) comprised 81-94% by number of schools spawning from mid-January to March, with the 1982 yr class being particularly strong.Recovery from poor growth conditions during the 1982-83 El Nino event was evidenced by age-length and age-weight relationships, particularly for younger fish. Mean body length for 2-, 3-, and 4-yr-old herring averaged 8 mm greater than in 1983-84. Weight at age was 24 to 41%higher for ages 2 to 6 yr and 15 to 16% higher for 7- and 8-yr olds.Average fecundity was estimated from egg counts from 94 unripe herring. Mean value was 227.1 eggs/g with a 95% confidence interval of 5.1 eggs/g.Survival of young-of-the-year (YOY) herring from 1983-84 spawns was greater than from the previous season. The positive correlation previously observed between relative abundance of YOY herring from the Department's Bay-Delta Project samples and the resultant year class strength of newly recruited herring in San Francisco Bay's spawningstocks was not evident this season; the contribution of the 1983 yr class (2-yr olds hatched during the 1982-83 season) was better than expected. (84pp.)
  • Biological characteristics of the catch from 1984-85 Pacific herring, Clupea harengus pallasi, roe fishery in California

    Spratt, Jerome D. (California Department of Fish and Game, Marine Resources RegionMonterey, CA, 1985)
    In Tomales Bay, 5-, 6-, and 7-yr-old herring, Clupea harengus pallasi, composed 75% by number of the 1984-85 season's catch. In San Francisco Bay, 2-, 3-, and 4-yr-old herring composed 82% by number of the roundhaul catch, and 5-, 6-, and 7-yr-old herring composed 68% by number ofthe gill net catch.The percent of 4-yr-old herring increased to a record high level in the San Francisco Bay gill net catch.Recruitment of 2-yr-old herring into the San Francisco Bay roundhaul fishery was excellent, with 2-yr-old herring composing 41% of the catch.The growth rate of herring improved in both Tomales and San Francisco Bays, after the period of poor growth during the recent El Nino, when the weight of herring averaged 20% below normal.(23pp.)
  • Mendocino Power Plant site ecological study, Quarterly Report No. 2; October 1 - December 31, 1971

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    This report is the second quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover work through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
  • Mendocino power plant site ecological study Quarterly Report No. 4; April 1 - June 30, 1972

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L.; Hoban, Therese L. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    This report is the fourth quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover works through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
  • Ocean shrimp report: 1971 Season; Fifteenth Annual Shrimp Report

    Nelson, Nancy E. (California Department of Fish and Game, Marine Resources RegionMonterey, CA, 1972)
    California's 1971 ocean shrimp landings totaled 3,074,540 pounds, a decrease of nearly a million pounds from 1970. The decrease resulted primarily from the failure of Area A vessels to reach the quota, and the lack of significant landings in the remaining permit areas.
  • A survey of the marine environment near the Wedron Silica discharge off Asilomar, Monterey County

    Odemar, Melvyn W. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1973)
    The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in the vicinity of the Wedron Silica discharge. The objective of the study was to provide the Regional water Quality Control Board (RWQCB) with data to assist them in evaluating the effects of the discharge on the marine environment.The determinations made by biologist-divers consisted of:(i) comparative abundance and diversity of plant and animal life; (ii) substrate characteristics; and (iii) limited physical measurements, including water temperature and clarity.The State Water Resources Control Board reimbursed the Department for part of the expenses incurred during this study. (24pp.)
  • A survey of the marine environment near the city of Carmel ocean outfall

    Odemar, Melvyn W. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in thevicinity of the city of Carmel ocean outfall in Carmel Bay. The objective of the study was to provide the Regional Water Quality Control Board (RWQCB) with data to assist them in evaluating the effects of the discharge on the marine environment at five stations selected by the RWQCB adjacent to the outfall terminus and two at a control area off Granite Point (Figure 1), and to provide pre-discharge data for a new discharge being constructed adjacent to the existing one.The determinations made by biologist-divers included: (i) the number and diversity of plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature and clarity.The State Water Resources Control Board reimbursed the Department for some expenses incurred during this study. The work was performed by California Department of Fish and Game biologists from the Department's research vessel KELP BASS.
  • A survey of the marine environment near the city of Goleta ocean outfall

    Odenweller, Dan B. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1973)
    The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecologicalinvestigation of the marine environment in the vicinity of the city of Goleta ocean outfall. The objective of the study was to provide the Regional Water Quality Control Board (RWQCB) with data to assist them in evaluating theeffects of the discharge on the marine environment at four stations selected by the RWQCB around the outfall terminus (Figure 1). One additional physical data station, (G-4), was occupied for temperature and dissolved oxygen determinations.The determinations made by biologist-divers included: (i) the number and diversity of animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature, clarity, and dissolved oxygen. Additionally, benthic samples were obtained both by the divers and by a Ponar grab at each station.The State Water Resources Control Board partially reimbursed the Department for expenses incurred during this study. The work was performed by California Department of Fish and Game biologists from the Department's research vessel KELP BASS. (15pp.)
  • A survey of the marine environment near the city of Santa Cruz ocean outfall

    Hardy, Robert A. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    The California Department of Fish and Game and the State Water Resources Control Board (through Regional Board #3, Central Coast) entered into an agreement whereby Department biologist-divers conducted a subtidal ecological investigation of the marine environment in thevicinity of the City of Santa Cruz ocean outfall. The objective of the study was to provide the Regional Water Quality Control Board with data to assist them in evaluating the effects of the discharge on the marine environment.The determinations made by biologist-divers included: (i) the number and diversity of the plant and animal life; (ii) substrate characteristics; and (iii) physical parameters, including water temperature and clarity. Additionally, benthic samples were obtained both by the diversand by a Ponar grab at each station.The State Water Resources Control Board reimbursed the Department for part of the expenses incurred during this study.
  • Ocean shrimp report 1972 season

    Nelson, Nancy E.; Dahlstrom, Walter A. (California Department of Fish and Game, Marine Resources RegionMenlo Park, CA, 1973)
    California's 1972 ocean shrimp landings totaled 2,488,683 pounds, a decrease of 585,857 pounds from the 1971 season when 3,074,540 pounds were landed. The decrease resulted primarily from the failure of the vessels to reach the quotas in Areas A, B-1 and B-2. (18pp.)
  • A re-survey of the marine environment offshore from Point Loma, San Diego County

    California Department of Fish and Game, Marine Resources Region (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    The California Department of Fish and Game and the State Water Quality Control Board (through Regional Board No. 9 - San Diego) entered into an agreement 1 July 1970, whereby Department biologist-divers would resurvey the marine environment off the western shore of Point Lorna, San DiegoCounty, California. The investigation was to consist of a comparison of present conditions to those found in 1965 (Turner, Ebert and Given, 1968). This information would then be used by the Board to evaluate environmentalchanges (if any) which have occurred following the operation of the Point Loma ocean outfall.Determinations to be made at each station included, but were not limited to: (i) the number and diversity of plant and animal life; (ii) substrate characteristics; and (iii) physical conditions of the water.The Board reimbursed the Department for part of the expenses incurred during the course of this investigation.
  • California shellfish importation and planting report 1971-1972 season

    Dahlstrom, W. A. (California Department of Fish and Game, Marine Resources RegionMenlo Park, CA, 1972)
  • Diablo canyon power plant site ecological study Quarterly Report No. 1; July 1 - September 30, 1973

    Gotshall, Daniel W.; Laurent, Laurence L.; Ebert, Earl E. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1973)
    The second phase of ecological studies at the Diablo Canyon Power Plant site was initiated in July 1973. The first, phase conducted during 1970-71 involved baseline ecological surveys with special reference to abalone and bony fishes. The objectives of this second phase are to quantitativey monitor abalone and algal communities, including predatorsand competitors, along permanent intertidal and subtidaltransects established during the first phase.During the quarter nine permanent transects were located and marked with new buoys. Surveys on seven of these transects were completed, and the commercial sea urchin and red abalone fisheries operating in the Diablo Cove area were monitored.Sea otter activities between Diablo Cove and Pt. Buchon were recorded to determine the location of the herd and their general food habits. Little evidence of feeding activity has been observed in Diablo Cove.Temperature tolerance studies, began in March 1973 on red abalones, were continued. Problems in obtaining viable abalone larvae hampered this project.(11pp.)
  • Mendocino power plant site ecological study final report

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L.; Hoban, Therese L.; Farrnes, Gary D. (California Department of Fish and Game, Marine Resources RegionMonterey, CA, 1974)
    A preoperational ecological study of a proposed nuclear power plant site on the Mendocino County coast was initiated in September 1971. The study resulted from an agreement between the Pacific Gas and Electric Company and the California Department of Fish and Game signed in July 1971. In the agreement, Pacific Gas and Electric Company provided funds for the Department's studies of the site.Studies of the subtidal animal and plant communities were conducted by divers from September 1971 through March 1973; intertidal animal and plant populations were surveyed from November 1971 through February 1973. Sportfisheries for abalone and finfish were surveyed during 1972 and Spring of 1973. Stomach contents of many of the more abundant subtidal and intertidal fishes were examined. All of these studies were designed to determine the dominant species of plants, invertebrates and fishes in the various communities, their relative abundance, and where applicable, size composition, predators and competitors.The parameters developed from these studies would be used for comparison with similar studies conducted after the proposed plant went into operation to determine what effect construction and operation of the plant might have on the various plants and animals studied. (291pp.)
  • Southern California independent sport fishing survey Quarterly Report No. 7

    Wine, Vickie L. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1977)
    During the January 1 - March 31, 1977 quarter,28 launch ramps, hoists and boat rental locations were sampled 166 times. During the sample days 9,209 anglers and 496 divers were interviewed. They expended 61,347 effort hours and landed 22,454 fishes of 133 identified species.The ten most commonly landed species were: 1) white croaker, Genyonemus lineatus, 16%; 2) Pacific bonito, Sarda chiliensis, 7%; 3) blue rockfish, Sebastes mystinus, 5%; 4) olive rockfish, S. serranoides, 5%; 5) ocean whitefish, Caulolatilus princeps, 5%; 6) barred sand bass, Paralabrax nebulifer, 5%; 7) Pacific mackerel, Scomberjaponicus, 3%; 8) bocaccio, Sebastes paucispinis, 3%; 9) kelp bass, Paralabrax clathratus, 3%; and10) copper rockfish, Sebastes caurinus, 3%. (23pp.)
  • Mendocino power plant site ecological study, Quarterly Report No. 3; January 1 - March 31, 1972

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L.; Hoban, Therese L. (California Department of Fish and Game, Marine Resources RegionMenlo Park, CA, 1972)
    This report is the third quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover work through December 31, 1972. Full tables and species lists will be included in each annual report. Complete records of observations and measurements are kept in files at the Marine Resources Laboratory, Monterey.
  • Mendocino power plant site ecological study, Quarterly Report No. 1; July 1 - September 30, 1971

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L. (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1972)
    This report is the first quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecologicalstudy to establish a base line inventory of the marine biota with special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover all work from September 1971 through December 1972. Full tables and species lists will be included in each annual report.
  • Mendocino power plant site ecological study, Quarterly Report No. 5; July 1 - September 30, 1972

    Gotshall, Daniel W.; Lea, Robert N.; Laurent, Laurence L.; Hoban, Therese L. (California Department of Fish and Game, Marine Resources RegionLOng Beach, CA, 1972)
    This report is the fifth quarterly report submitted in partial fulfillment of Research Contract No. S-1902 between the Department of Fish and Game and the Pacific Gas and Electric Company. Through this contract the Department of Fish and Game is to conduct a pre-operational ecological study to establish a base line inventory of the marine biotawith special reference to fish and to abalone, including food chains.Quarterly reports will be followed by annual reports. The first annual report will cover all work from September 1971 through December 1972. Full tables and species lists will be included in each annual report.
  • A survey of the marine environment near two brine discharges at Huntington Beach

    California State Fisheres Laboratory (California Department of Fish and Game, Marine Resources RegionLong Beach, CA, 1973)
    Department biologists, under contract for the State Water Resources Control Board, conducted a survey of the marine environment in the vicinity of two oil field brine discharges at Huntington Beach. Survey procedures included benthic grabs, diver observations, bottom trawls and measurements of water temperature and dissolved oxygen concentrations. A stratified random sampling plan was used to locate the 12 station areas surveyed. Water depth ranged from 9 to 15 m (30 to 50 ft). The results of this survey do not indicate that the discharges are having an effect on the benthic populations sampled. It is concluded that the scope of the survey was not sufficient to conclusively evaluate the effects of the two discharges. Recommendations are made for additional surveys to include intensive sampling of populations at the discharge depth and shoreward over an extended period of time, rather than a survey of the type conducted over a single period of time. (26pp.)