Shifts in North Sea forage fish productivity and potential fisheries yield
Abstract Forage fish populations support large scale fisheries and are key components of marine ecosystems across the world, linking secondary production to higher trophic levels. While climate‐induced changes in the North Sea zooplankton community are described and documented in literature, the ass...
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crwiley:10.1111/1365-2664.13038 2024-06-02T08:04:42+00:00 Shifts in North Sea forage fish productivity and potential fisheries yield Clausen, Lotte W. Rindorf, Anna van Deurs, Mikael Dickey‐Collas, Mark Hintzen, Niels T. Arlinghaus, Robert Seventh Framework Programme 2017 http://dx.doi.org/10.1111/1365-2664.13038 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2664.13038 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2664.13038 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Applied Ecology volume 55, issue 3, page 1092-1101 ISSN 0021-8901 1365-2664 journal-article 2017 crwiley https://doi.org/10.1111/1365-2664.13038 2024-05-03T11:59:01Z Abstract Forage fish populations support large scale fisheries and are key components of marine ecosystems across the world, linking secondary production to higher trophic levels. While climate‐induced changes in the North Sea zooplankton community are described and documented in literature, the associated bottom‐up effects and consequences for fisheries remain largely unidentified. We investigated the temporal development in forage fish productivity and the associated influence on fisheries yield of herring, sprat, Norway pout and sandeel in the North Sea. Using principal component analysis, we analysed 40 years of recruitment success and growth proxies to reveal changes in productivity and patterns of synchroneity across stocks (i.e. functional complementarity). The relationship between forage fish production and Calanus finmarchicus (an indicator of climate change) was also analysed. We used a population model to demonstrate how observed shifts in productivity affected total forage fish biomass and fisheries yield. The productivity of North Sea forage fish changed around 1993 from a higher average productivity to lower average productivity. During the higher productivity period, stocks displayed a covariance structure indicative of functional complementarity. Calanus finmarchicus was positively correlated to forage fish recruitment, however, for growth, the direction of the response differed between species and time periods. Maximum sustainable yield ( MSY ) and the associated fishing mortality ( F msy ) decreased by 33%–68% and 26%–64%, respectively, between the higher and lower productivity periods. Synthesis and applications . The results demonstrate that fisheries reference points for short‐lived planktivorous species are highly dynamic and respond rapidly to changes in system productivity. Furthermore, from an ecosystem‐based fisheries management perspective, a link between functional complementarity and productivity, indicates that ecosystem resilience may decline with productivity. Based on this, we ... Article in Journal/Newspaper Calanus finmarchicus Wiley Online Library Norway Journal of Applied Ecology 55 3 1092 1101 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Forage fish populations support large scale fisheries and are key components of marine ecosystems across the world, linking secondary production to higher trophic levels. While climate‐induced changes in the North Sea zooplankton community are described and documented in literature, the associated bottom‐up effects and consequences for fisheries remain largely unidentified. We investigated the temporal development in forage fish productivity and the associated influence on fisheries yield of herring, sprat, Norway pout and sandeel in the North Sea. Using principal component analysis, we analysed 40 years of recruitment success and growth proxies to reveal changes in productivity and patterns of synchroneity across stocks (i.e. functional complementarity). The relationship between forage fish production and Calanus finmarchicus (an indicator of climate change) was also analysed. We used a population model to demonstrate how observed shifts in productivity affected total forage fish biomass and fisheries yield. The productivity of North Sea forage fish changed around 1993 from a higher average productivity to lower average productivity. During the higher productivity period, stocks displayed a covariance structure indicative of functional complementarity. Calanus finmarchicus was positively correlated to forage fish recruitment, however, for growth, the direction of the response differed between species and time periods. Maximum sustainable yield ( MSY ) and the associated fishing mortality ( F msy ) decreased by 33%–68% and 26%–64%, respectively, between the higher and lower productivity periods. Synthesis and applications . The results demonstrate that fisheries reference points for short‐lived planktivorous species are highly dynamic and respond rapidly to changes in system productivity. Furthermore, from an ecosystem‐based fisheries management perspective, a link between functional complementarity and productivity, indicates that ecosystem resilience may decline with productivity. Based on this, we ... |
author2 |
Arlinghaus, Robert Seventh Framework Programme |
format |
Article in Journal/Newspaper |
author |
Clausen, Lotte W. Rindorf, Anna van Deurs, Mikael Dickey‐Collas, Mark Hintzen, Niels T. |
spellingShingle |
Clausen, Lotte W. Rindorf, Anna van Deurs, Mikael Dickey‐Collas, Mark Hintzen, Niels T. Shifts in North Sea forage fish productivity and potential fisheries yield |
author_facet |
Clausen, Lotte W. Rindorf, Anna van Deurs, Mikael Dickey‐Collas, Mark Hintzen, Niels T. |
author_sort |
Clausen, Lotte W. |
title |
Shifts in North Sea forage fish productivity and potential fisheries yield |
title_short |
Shifts in North Sea forage fish productivity and potential fisheries yield |
title_full |
Shifts in North Sea forage fish productivity and potential fisheries yield |
title_fullStr |
Shifts in North Sea forage fish productivity and potential fisheries yield |
title_full_unstemmed |
Shifts in North Sea forage fish productivity and potential fisheries yield |
title_sort |
shifts in north sea forage fish productivity and potential fisheries yield |
publisher |
Wiley |
publishDate |
2017 |
url |
http://dx.doi.org/10.1111/1365-2664.13038 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2F1365-2664.13038 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2664.13038 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Journal of Applied Ecology volume 55, issue 3, page 1092-1101 ISSN 0021-8901 1365-2664 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/1365-2664.13038 |
container_title |
Journal of Applied Ecology |
container_volume |
55 |
container_issue |
3 |
container_start_page |
1092 |
op_container_end_page |
1101 |
_version_ |
1800749353229352960 |