Community reorganization in the Gulf of Alaska following ocean climate regime shift
Links
- More information: Publisher Index Page (via DOI)
- Download citation as: RIS | Dublin Core
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.
Suggested Citation
Anderson, P., and Piatt, J.F., 1999, Community reorganization in the Gulf of Alaska following ocean climate regime shift: Marine Ecology Progress Series, v. 189, p. 117-123, https://doi.org/10.3354/meps189117.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Community reorganization in the Gulf of Alaska following ocean climate regime shift |
| Series title | Marine Ecology Progress Series |
| DOI | 10.3354/meps189117 |
| Volume | 189 |
| Year Published | 1999 |
| Language | English |
| Publisher | Inter-Research |
| Contributing office(s) | Alaska Biological Science Center |
| Description | 7 p. |
| First page | 117 |
| Last page | 123 |
| Country | United States |
| State | Alaska |
| Other Geospatial | Gulf of Alaska |