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  • California  (152)
  • Spiny lobster  (19)
  • Analytical Chemistry and Spectroscopy
  • California Department of Fish and Game, Marine Resources Region  (153)
  • 1
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    Results of Jack Mackerel tagging study, 1971-75 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/234 | 8 | 2011-09-29 22:22:22 | 234 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: Methods and materials used to tag and recapture jack mackerel, Trachurus symmetricus, off the coast of southern Ca1ifornia and Baja California, Mexico, are described. Tagging, recapture, and movement data resulting from this program are reported. Analysis of these data indicates substantial movement of jack mackerel within the range of the California fishery and suggests a seasonal inshore-offshore movement pattern. (13pp.)
    Keywords: Management ; Fisheries ; Biology ; Jack mackerel ; Trachurus symmetricus ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 2
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    Pacific herring, Clupea harengus pallasi, studies in San Francisco Bay, April 1986 to March 1987 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/335 | 8 | 2011-09-29 22:13:44 | 335 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-28
    Description: Herring schools were surveyed hydroacoustically and sampled in San Francisco Bay from late October 1986 to March 1987. Eight large schools (greater than 1000 tons each) spawned from December to February and seven smaller schools were detected throughout the spawning season. Total acoustic biomass estimate using a "visual integration" technique was 40,930 tons, and it was determined from spawn escapement and commercial landings that an additional 2240 tons were not detected. This is a slight increase from last season's total of approximately 42,200 tons. For the first time, biomass was also estimated using echo integration equipment. A total biomass was obtained of 33,050 tons, including herring not detected acoustically. This estimate must be considered preliminary and subject to revision after target strength of San Francisco Bay herring is determined.Eighty-seven samples, containing a total of 13,125 herring, were collected with variable-mesh gill net and midwater trawl or obtained from the roundhaul and gill net fisheries. Mean body length (BL) of sampled herring decreased by about 20 mm from the beginning to the end of the spawning season. A combination of variable-mesh gill net and midwater trawl samples for a particular school closely approximates mean BL and age composition data from unbiased roundhaul samples.Age-weight and age-length relationships were average to above average compared with those of the previous two seasons. The 1982 year class exhibited unusually good growth, with a mean BL of 202.8 mm for herring aged from stratified random samples.The 1982 through 1985 year classes (5- through 2-yr olds)contributed 97% by number and 95% by weight to the total 1986-87 spawning biomass in San Francisco Bay. Good recruitment has occurred during the past four seasons. The weak 1981 year class contributed little to the total biomass as 6-yr olds.Average catch per tow of young-of-the-year (YOY) herring is a potential index of abundance for recruitment 18 months later as 2-yr olds. Estimated recruitment has only varied by 15% during the past three seasons and does not reflect the magnitude or trend in YOY catches in the bay. (85pp.)
    Keywords: Management ; Fisheries ; Biology ; Pacific herring ; Clupea harengus pallasi ; San Francisco Bay ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 3
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    Mendocino Power Plant site ecological study annual report; July 1, 1971 to December 31, 1972 (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/290 | 8 | 2011-09-29 22:17:20 | 290 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-28
    Description: This report is the first annual report submitted in partialfulfillment 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 preoperational ecological study to establish a base line inventory of the marine biota with special reference to fish and to abalone,including food chains.This first annual report covers all work from September 1971 through December 1972.This annual report covers the first 18 month period of the project from July 1, 1971 through December 31, 1972. The report includes results (discussion and tables) of our subtidal, intertidal, sportfishery, fish collection, fish food habit, and plankton studies. The quarterly reportfor October 1 to December 31, 1972 is included herein and these data are incorporated in this annual report. (86pp.)
    Keywords: Ecology ; Fisheries ; Biology ; Mendocino Power Plant ; California ; environmental impact
    Repository Name: AquaDocs
    Type: monograph
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  • 4
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    Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 29, July to September 1986 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/523 | 8 | 2011-09-29 21:56:59 | 523 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in July to September of 1986, is presented in a data report format. Data in this quarterly report aresubdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally bycatch definition for each area, mode, and gear type. Tables are presented forthese categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (Document has 210 pages.)
    Description: The supplement (Appendix A) to this report is currently awaiting digitization, as the supplement is on microfiche and is poor quality.
    Keywords: Management ; Fisheries ; marine fishes ; sport fishing ; California
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    Type: monograph
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  • 5
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    Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 28, April to June, 1986 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/519 | 8 | 2011-09-29 21:56:39 | 519 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June of 1986, is presented in a data report format. Data in this quarterly report are subdivided into three categories: primarily by five geographical areas;secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presented for these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (Document has 155 pages.)
    Description: The supplement (Appendix A) to this report is currently awaiting digitization, as the supplement is on microfiche and is poor quality.
    Keywords: Management ; Fisheries ; marine species ; recreational fishing ; California
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    Type: monograph
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  • 6
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    Marine recreational fisheries statistics survey for Northern and Central California, Quarterly Report No. 4, April to June, 1980 (2021)
    California Department of Fish and Game, Marine Resources Region | Fort Bragg, CA
    In:  http://aquaticcommons.org/id/eprint/529 | 8 | 2011-09-29 21:55:11 | 529 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: Field intercept Marine Recreational Fisheries Statistics Survey (MRFSS) data for central and northern California, collected in April to June 1980, is presented in a data report format. Data in this quarterly report aresubdivided into three categories: primarily by five geographical areas; secondarily by fishing modes and gear types within each area; and finally by catch definition for each area, mode, and gear type. Tables are presentedfor these categories, each with three sections: sampled effort, ranked catch, and catch-per-unit-effort (CPUE). Also, within each area, length-frequency histograms and tables are presented for select species. (155pp.)
    Description: The supplement (Appendix A) to this report is currently awaiting digitization, as the supplement is on microfiche and is poor quality.
    Keywords: Management ; Fisheries ; marine species ; recreational fishing ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 7
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    Cruise Report 71-KB-10: Big game fish investigations (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/567 | 8 | 2011-09-29 21:53:45 | 567 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: (1p.)
    Keywords: Fisheries ; Biology ; R/V Kelp Bass ; Pacific bonito ; Sarda chiliensis ; Pacific mackerel ; Scomber japonicus ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 8
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    Cruise Report 71-KB-16: Big game fish investigation (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/572 | 8 | 2011-09-29 21:53:58 | 572 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: (1p.)
    Keywords: Biology ; R/V Kelp Bass ; California ; cruise report ; Pacific bonito ; Sarda chiliensis ; Pacific mackerel ; Scomber japonicus ; Jack mackerel ; Trachurus symmetricus
    Repository Name: AquaDocs
    Type: monograph
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  • 9
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    Cruise Report 71-KB-18: Kelp Management Program DJ F-27-R (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/574 | 8 | 2011-09-29 21:54:24 | 574 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: (3pp.)
    Keywords: Ecology ; Biology ; R/V Kelp Bass ; Palos Verdes Peninsula ; California ; cruise report ; brown algae ; Dictyota ; Dictyopteris ; Eisenia ; Halidrys ; Macrocystis
    Repository Name: AquaDocs
    Type: monograph
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  • 10
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    Cruise Report 72-KB-7: Big game fish investigations (2021)
    California Department of Fish and Game, Marine Resources Region | Long Beach, CA
    In:  http://aquaticcommons.org/id/eprint/584 | 8 | 2011-09-29 21:50:24 | 584 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-30
    Description: (1p.)
    Keywords: Fisheries ; Biology ; R/V Kelp Bass ; Redondo Beach ; California ; Pacific bonito ; Sarda chiliensis
    Repository Name: AquaDocs
    Type: monograph
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