The Pacific Herring resource of Tomales and San Francisco Bays: its size and structure
The spawning biomass of Pacific herring, Clupea harenguspallasii was estimated for Tomales Bay and San FranciscoBay during the 1973-74 and 1974-75 spawning seasons. Estimates involve determining numbers of eggs spawned and converting this figure to tons of herring.Age composition of the catch indicates the populations ofboth bays are stable.The spawning biomass was estimated at 6,559 tons and 4,734tons in Tomales Bay for the 1973-74 and 1974-75 seasons,respectively. Spawning biomass estimates for San FranciscoBay were 6,127 tons and 19,465 tons for the 1973-74 and 1974-75 seasons, respectively. (46pp.)
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| Format: | monograph biblioteca |
| Language: | English |
| Published: |
California Department of Fish and Game
1976
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| Subjects: | Management, Fisheries, Biology, Pacific herring, Clupea harengus pallasii, Tomales Bay, San Francisco Bay, California, |
| Online Access: | http://hdl.handle.net/1834/18590 |
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