Changes in the Barents Sea fish community induced by environmental change and fishery ...
No abstracts are to be cited without prior reference to the author.A spatio-temporal analysis of Barents Sea survey data from the deeper parts of the Barents Sea shows a sudden change in fish community structure and abundance taking place in the mid 1980s and 1990s. The change in fish community stru...
| Main Authors: | , , |
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| Format: | Conference Object |
| Language: | unknown |
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ASC 2009 - Theme session F
2024
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.17895/ices.pub.25070963.v1 https://ices-library.figshare.com/articles/conference_contribution/Changes_in_the_Barents_Sea_fish_community_induced_by_environmental_change_and_fishery/25070963/1 |
| Summary: | No abstracts are to be cited without prior reference to the author.A spatio-temporal analysis of Barents Sea survey data from the deeper parts of the Barents Sea shows a sudden change in fish community structure and abundance taking place in the mid 1980s and 1990s. The change in fish community structure is concomitant with climatic change and increasing fishing effort. Fishery may amplify the effects of climate forcing, and oppose recovery from the impact of climatic events. To characterize the effects of climate and fishery, survey trawl data, temperature data and log book data from the shrimp fishery are analyzed for the period 1980-2007. The climate regime shifts in the mid 80s and 90s with decline in North Atlantic Oscillation and temperature resulted in abrupt decline in fish abundance, decline in biodiversity and increase in pelagic demersal ratio. The shrimp stock also declined and the response of the shrimp industry was a reduction in effort. As the standardised fishing effort is our only measure of ... |
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