| Abstract: | We compare alternative models of sockeye salmon (Oncorhynchus
nerka) productivity (returns per spawner) using more than 30 years of catch
and escapement data for Bristol Bay, Alaska, and the Fraser River, British
Columbia. The models examined include several alternative forms of models
that incorporate climatic influences as well as models not based on
climate. For most stocks, a stationary stock-recruitment relationship
explains very little of the interannual variation in productivity. In
Bristol Bay, productivity co-varies among stocks and appears to be strongly
related to fluctuations in climate. The best model for Bristol Bay sockeye
involved a change in the 1970s in the parameters of the Ricker
stock-recruitment curve; the stocks generally became more productive. In
contrast, none of the models of Fraser River stocks that we examined
explained much of the variability in their productivity. |
| Genre: | Article |
| ProdID: | 1012938 |
| Citation Author: | Adkison, M.; Peterman, R.; Lapointe, M.; Gillis, D.; Korman, J. |
| Citation Contributing Office: | Alaska Biological Science Center |
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| Citation End Page: | 152 |
| Citation Issue: | 3/4 |
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| Citation Language: | English |
| Citation Larger Work Title: | Fisheries Oceanography |
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| Citation No Pagination: | |
| Citation Number Of Pages: | 16 |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | pp. 137-152 |
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| Citation Public Comments: | |
| Citation Publisher: | U.S. Fish and Wildlife Service |
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| Citation Search Results Text: | Alternative models of climatic effects on sockeye salmon (Oncorhynchus nerka) productivity in Bristol Bay, Alaska, and the Fraser River, British Columbia; 1996; Article; Journal; Fisheries Oceanography; Adkison, M.; Peterman, R.; Lapointe, M.; Gillis, D.; Korman, J. |
| Citation Start Page: | 137 |
| Citation Volume: | 5 |
| Citation Year: | 1996 |
| Type: | citation/reference |
| Text: | Alternative models of climatic effects on sockeye salmon (Oncorhynchus nerka) productivity in Bristol Bay, Alaska, and the Fraser River, British Columbia; 1996; Article; Journal; Fisheries Oceanography; Adkison, M.; Peterman, R.; Lapointe, M.; Gillis, D.; Korman, J. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| Date Other: | Mon, 1 Jan 1996 00:00 -0600 |
| Publisher: | U.S. Fish and Wildlife Service |
