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  • 1
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    Ocean shrimp report 1974 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/59 | 8 | 2011-09-29 13:04:41 | 59 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Statewide Pacific ocean shrimp landings for 1974 are totaled and compared with the 1973 season. Landings by area are described in relation to poundage by month, catch per unit effort and Fishing area. Sampling results reveal year class composition by numbers and weight of catches by area. Sex composition for all areas and also size of the shrimp by month are computed. Results of the hake stomach analysis reveal the possibility of a good showing of the 1974 year class in Area A. The outlook for the 1974 season indicates that the strong 1973 year class with help from the 1974 year class will carry the fishery in 1975. (18pp.)
    Keywords: Fisheries ; Biology
    Repository Name: AquaDocs
    Type: monograph
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  • 2
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    California shellfish importation and planting report 1974-1975 (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/64 | 8 | 2011-09-29 13:04:25 | 64 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The amount of shellfish imported and planted in State waters is enumerated by species and compared with the previous season. Arrangements were made with the Washington State Department of Fisheries to inspect the bulk of the seed oysters originating in Washington State. Adult Eastern oysters, Crassostrea virginica, were inspected upon arrival in San Francisco. Experimental studies with seed from mortality resistant parents have continued and survival and growth are being compared with commercial stock. (6pp.)
    Keywords: Fisheries ; Aquaculture ; Biology ; Eastern oysters ; Crassostrea virginica ; shellfish
    Repository Name: AquaDocs
    Type: monograph
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  • 3
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    Selectivity of gillnets in the California Pacific herring roe fishery (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/80 | 8 | 2011-09-29 22:38:17 | 80 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: Pacific herring, Clupea harengus, landings were sampled during the 1976 season in San Francisco, Tomales and Outer Bodega bays. Fish were sampled according to the type of gear used to catch them - - roundhaul nets (purse seines and lamparas), beach seines, and gillnets.Analysis of the data indicated that gillnets caught largerfish and caught more females than did roundhaul nets. In San Francisco Bay, female herring caught by gillnets had a mean body length of 208 mm (8.2 inches) compared to 179 mm (7.0 inches) for roundhaul nets. The sex ratio was 72% females by gillnets to 55% for roundhaul nets. The larger size and larger number of females caught by gillnets resulted in a much higher ripe roe recovery - - an average of 17.2% compared to 9.8% for roundhaul nets by weight of all samples.Although no definite comparisons of size and sex ratio of fish caught by different types of gear could be made in Tomales Bay and Outer Bodega Bay (because of insufficient sampling), herring in gillnet samples were comparable to those of San Francisco Bay in the two measured characters. (9pp.)
    Keywords: Fisheries ; Biology ; Pacific herring ; Clupea harengus ; gillnets ; fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 4
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    California shellfish importation and planting report 1975-1976 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/91 | 8 | 2011-09-29 22:36:41 | 91 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The amount of shellfishes imported and planted inState waters is enumerated by species and comparedwith the previous season. Total giant Pacificoyster seed shipments were equivalent to 5,249standard cases, compared with 11,884 standardcases the previous season. Sources of these seedoysters were Japan, Washington State and BritishColumbia, Canada. Adult Eastern oyster shipmentsfrom New York State totaled 442 bushels. (5pp.)
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 5
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    California shellfish importation and planting report 1973-1974 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/92 | 8 | 2011-09-29 22:36:43 | 92 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-25
    Description: The amount of shellfish imported and planted in State waters is enumerated by species and compared with the previous season. Arrangements were made with the Washington State Department of Fisheries to inspect the bulk of the seed oysters originating in Washington State. One shipment of 1,330 cases of Pacific oyster, Crassostrea gigas, seed was imported from Japan. Adult Eastern oysters, Crassostrea virginica, were inspected uponarrival in San Francisco. Experimental studies with seed from mortality resistant parents indicate good survival and growth. (5pp.)
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 6
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    Ocean Shrimp Report 1975 Season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/94 | 8 | 2011-09-29 22:36:06 | 94 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landings totaled 4,992,233 lb, a record annual catch that was double the 1974 catch of 2,382,821 lb. Landings for Areas A, B-1, B-2, and C were 3.4, 0.3, 1.2, and 0.06 million lb, respectively. Catch per hour trawled by single gear vessels ranged from 360 to 2,443 lb per hour for the 4areas. The outlook is for good 1976 seasons in Areas A and B-1 if the moderately strong 1974 year class is complemented by strong recruitment of the 1975 year class. Prospects for Areas B-2 and C are not as promising as those of other areas due to weak 1974 year classes. (20pp.)
    Keywords: Management ; Fisheries ; Pacific ocean shrimp ; Pandalus jordani ; California ; fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 7
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    Ocean shrimp report 1976 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/153 | 8 | 2011-09-29 22:30:43 | 153 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-26
    Description: Statewide Pacific ocean shrimp, Pandalus jordani, landingstotaled 3,400,191 lb, down from the 1975 record catch of4,992,233 lb but well above the 10-year (1966-1975) mean of2.6 million lb. Landings from Areas A (Eureka-Crescent City)and B-1 (Fort Bragg) were 2.7 and 0.7 million lb, respectively. Only negligible amounts were landed in Areas B-2 (Bodega Bay) and C (Avila-Morro Bay). In Areas A and B-1 catch per hour trawled by single-rig vessels ranged from 294 to 1,803 lb while catch per hour by double-rig vessels ranged from 431 to 3,428 lb. Two-year-old (1974 year class) shrimp dominated the catches during the first part of the season, but 1-year-old (1975 year class) shrimp dominated the catches from August to October. The outlook for the 1977 season in Areas A, B-1 and B-2 is good because of the strong showing of the 1975 year class. (15pp.)
    Keywords: Fisheries
    Repository Name: AquaDocs
    Type: monograph
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  • 8
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    Ocean shrimp report 1972 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/191 | 8 | 2011-09-29 22:24:12 | 191 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: 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.)
    Keywords: Fisheries ; Biology ; shrimp fisheries ; California
    Repository Name: AquaDocs
    Type: monograph
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  • 9
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    Ocean Shrimp Report 1973 Season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/216 | 8 | 2011-09-29 22:26:38 | 216 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: Statewide Pacific ocean shrimp landings for 1973 are totaledand compared with the 1972 season. Landings by area aredescribed in relation to poundage by month, catch per uniteffort and fishing area. Sampling results reveal year classcomposition by numbers and weight of the catches by area.Sex composition for all areas and also size of the shrimp bymonth for Area A are computed. Results of hake stomachanalysis reveal the possibility of a strong 1973 year classin Area A. The outlook for the 1974 season points out theneed for strong recruitment from the 1973 year class to sustain the fishery in all areas. (12pp.)
    Keywords: Management ; Fisheries ; Biology
    Repository Name: AquaDocs
    Type: monograph
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  • 10
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    California shellfish importation and planting report 1972-1973 season (2021)
    California Department of Fish and Game, Marine Resources Region | Menlo Park, CA
    In:  http://aquaticcommons.org/id/eprint/235 | 8 | 2011-09-29 22:22:32 | 235 | California Department of Fish and Game
    Details
    Publication Date: 2021-06-27
    Description: The amount of shellfish imported and planted in State watersis enumerated by species and compared with the previousseason. Arrangements were made with the Washington StareDepartment of Fisheries to inspect the bulk of the seedoysters originating in Washington Stare. Only 121 standardcases of Pacific oyster seed were imported from Japan. AdultEastern oysters were inspected upon arrival in San Francisco. Two shipments of chione clams from Mexico were inspected at Carlsbad Lagoon. Experimental studies with seed from mortality resistant parents indicate good survival and growth. (5pp.)
    Keywords: Fisheries ; Aquaculture ; Pacific oyster ; Crassostrea gigas ; Eastern oysters ; Crassostrea virginica ; planting ; clams ; California
    Repository Name: AquaDocs
    Type: monograph
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