Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon
Ecological regime shifts are abrupt changes in the structure and function of ecosystems that persist over time, but evidence of contemporary regime shifts are rare. Historical scale data from 52,384 individual wild Atlantic salmon caught in 180 rivers from 1989 to 2017 reveal that growth of Atlantic...
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American Association for the Advancement of Science (AAAS)
2022
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Online Access: | http://dx.doi.org/10.1126/sciadv.abk2542 https://www.science.org/doi/pdf/10.1126/sciadv.abk2542 |
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craaas:10.1126/sciadv.abk2542 2024-06-23T07:50:23+00:00 Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon Vollset, Knut Wiik Urdal, Kurt Utne, Kjell Thorstad, Eva B. Sægrov, Harald Raunsgard, Astrid Skagseth, Øystein Lennox, Robert J. Østborg, Gunnel M. Ugedal, Ola Jensen, Arne J. Bolstad, Geir H. Fiske, Peder 2022 http://dx.doi.org/10.1126/sciadv.abk2542 https://www.science.org/doi/pdf/10.1126/sciadv.abk2542 en eng American Association for the Advancement of Science (AAAS) Science Advances volume 8, issue 9 ISSN 2375-2548 journal-article 2022 craaas https://doi.org/10.1126/sciadv.abk2542 2024-06-13T04:01:40Z Ecological regime shifts are abrupt changes in the structure and function of ecosystems that persist over time, but evidence of contemporary regime shifts are rare. Historical scale data from 52,384 individual wild Atlantic salmon caught in 180 rivers from 1989 to 2017 reveal that growth of Atlantic salmon across the Northeast Atlantic Ocean abruptly decreased following the year 2004. At the same time, the proportion of early maturing Atlantic salmon decreased. These changes occurred after a marked decrease in the extent of Arctic water in the Norwegian Sea, a subsequent warming of spring water temperature before Atlantic salmon entering the sea, and an approximately 50% reduction of zooplankton across large geographic areas of the Northeast Atlantic Ocean. A sudden decrease in growth was also observed among Atlantic mackerel in the Norwegian Sea. Our results point toward an ecosystem-scale regime shift in the Northeast Atlantic Ocean. Article in Journal/Newspaper Arctic Atlantic salmon Northeast Atlantic Norwegian Sea Zooplankton AAAS Resource Center (American Association for the Advancement of Science) Arctic Norwegian Sea Science Advances 8 9 |
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Open Polar |
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AAAS Resource Center (American Association for the Advancement of Science) |
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craaas |
language |
English |
description |
Ecological regime shifts are abrupt changes in the structure and function of ecosystems that persist over time, but evidence of contemporary regime shifts are rare. Historical scale data from 52,384 individual wild Atlantic salmon caught in 180 rivers from 1989 to 2017 reveal that growth of Atlantic salmon across the Northeast Atlantic Ocean abruptly decreased following the year 2004. At the same time, the proportion of early maturing Atlantic salmon decreased. These changes occurred after a marked decrease in the extent of Arctic water in the Norwegian Sea, a subsequent warming of spring water temperature before Atlantic salmon entering the sea, and an approximately 50% reduction of zooplankton across large geographic areas of the Northeast Atlantic Ocean. A sudden decrease in growth was also observed among Atlantic mackerel in the Norwegian Sea. Our results point toward an ecosystem-scale regime shift in the Northeast Atlantic Ocean. |
format |
Article in Journal/Newspaper |
author |
Vollset, Knut Wiik Urdal, Kurt Utne, Kjell Thorstad, Eva B. Sægrov, Harald Raunsgard, Astrid Skagseth, Øystein Lennox, Robert J. Østborg, Gunnel M. Ugedal, Ola Jensen, Arne J. Bolstad, Geir H. Fiske, Peder |
spellingShingle |
Vollset, Knut Wiik Urdal, Kurt Utne, Kjell Thorstad, Eva B. Sægrov, Harald Raunsgard, Astrid Skagseth, Øystein Lennox, Robert J. Østborg, Gunnel M. Ugedal, Ola Jensen, Arne J. Bolstad, Geir H. Fiske, Peder Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
author_facet |
Vollset, Knut Wiik Urdal, Kurt Utne, Kjell Thorstad, Eva B. Sægrov, Harald Raunsgard, Astrid Skagseth, Øystein Lennox, Robert J. Østborg, Gunnel M. Ugedal, Ola Jensen, Arne J. Bolstad, Geir H. Fiske, Peder |
author_sort |
Vollset, Knut Wiik |
title |
Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
title_short |
Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
title_full |
Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
title_fullStr |
Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
title_full_unstemmed |
Ecological regime shift in the Northeast Atlantic Ocean revealed from the unprecedented reduction in marine growth of Atlantic salmon |
title_sort |
ecological regime shift in the northeast atlantic ocean revealed from the unprecedented reduction in marine growth of atlantic salmon |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1126/sciadv.abk2542 https://www.science.org/doi/pdf/10.1126/sciadv.abk2542 |
geographic |
Arctic Norwegian Sea |
geographic_facet |
Arctic Norwegian Sea |
genre |
Arctic Atlantic salmon Northeast Atlantic Norwegian Sea Zooplankton |
genre_facet |
Arctic Atlantic salmon Northeast Atlantic Norwegian Sea Zooplankton |
op_source |
Science Advances volume 8, issue 9 ISSN 2375-2548 |
op_doi |
https://doi.org/10.1126/sciadv.abk2542 |
container_title |
Science Advances |
container_volume |
8 |
container_issue |
9 |
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1802641260217892864 |