| Abstract: | A shift in ocean climate during the late 1970s triggered a reorganization of community structure in the Gulf of Alaska ecosystem, as evidenced in changing catch composition on long-term (1953 to 1997) small-mesh trawl surveys. Forage species such as pandalid shrimp and capelin declined because of recruitment failure and predation, and populations have not yet recovered. Total trawl catch biomass declined > 50% and remained low through the 1980s. In contrast, recruitment of high trophic-level groundfish improved during the 1980s, yielding a >250% increase in catch biomass during the 1990s. This trophic reorganization apparently had negative effects on piscivorous sea birds and marine mammals. |
| Genre: | Article |
| ProdID: | 70021245 |
| Citation Author: | Anderson, P. J.; Piatt, J. F. |
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| Citation End Page: | 123 |
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| Citation Language: | English |
| Citation Larger Work Title: | Marine Ecology Progress Series |
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| Citation Number Of Pages: | 7 |
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| Citation Publisher: | Inter-Research |
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| Citation Search Results Text: | Community reorganization in the Gulf of Alaska following ocean climate regime shift; 1999; Article; Journal; Marine Ecology Progress Series; Anderson, P. J.; Piatt, J. F. |
| Citation Start Page: | 117 |
| Citation Volume: | 189 |
| Citation Year: | 1999 |
| Type: | citation/reference |
| Text: | Community reorganization in the Gulf of Alaska following ocean climate regime shift; 1999; Article; Journal; Marine Ecology Progress Series; Anderson, P. J.; Piatt, J. F. |
| URL (THUMBNAIL): | http://pubs.er.usgs.gov/thumbnails/outside_thumb.jpg |
| URL (DIGITAL OBJECT IDENTIFIER): | http://dx.doi.org/10.3354/meps189117 |
| Date Other: | Fri, 1 Jan 1999 00:00 -0600 |
| Publisher: | Inter-Research |
