Status of the spawning biomass of the Pacific sardine, 1977-78
State law requires that the population ofPacific sardines, Sardinops sajax caeruleus,must reach a minimum spawning biomass of20,000 short tons before initiation of afishery. Data from ichthyoplankton surveys,sea survey cruises, the anchovy bait fishery,and jack mackerel purse seine fishery areanalyzed for evidence of an increase inpopulation size. Presently, the spawningbiomass of the northern stock of sardines isfar below the minimum requirement. (8pp.)
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| Main Author: | |
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| Format: | monograph biblioteca |
| Language: | English |
| Published: |
California Department of Fish and Game, Marine Resources Region
1978
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| Subjects: | Fisheries, Biology, Pacific sardines, Sardinops sajax caeruleus, |
| Online Access: | http://hdl.handle.net/1834/18031 |
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| Summary: | State law requires that the population ofPacific sardines, Sardinops sajax caeruleus,must reach a minimum spawning biomass of20,000 short tons before initiation of afishery. Data from ichthyoplankton surveys,sea survey cruises, the anchovy bait fishery,and jack mackerel purse seine fishery areanalyzed for evidence of an increase inpopulation size. Presently, the spawningbiomass of the northern stock of sardines isfar below the minimum requirement. (8pp.) |
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