Shifts in North Sea forage fish productivity and potential fisheries yield
1. 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 associate...
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Online Access: | https://research.wur.nl/en/publications/shifts-in-north-sea-forage-fish-productivity-and-potential-fisher https://doi.org/10.1111/1365-2664.13038 |
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ftunivwagenin:oai:library.wur.nl:wurpubs/530161 2024-01-14T10:05:57+01:00 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. 2018 application/pdf https://research.wur.nl/en/publications/shifts-in-north-sea-forage-fish-productivity-and-potential-fisher https://doi.org/10.1111/1365-2664.13038 en eng info:eu-repo/grantAgreement/EC/FP7/289257 info:eu-repo/grantAgreement/EC/FP7/321553 https://edepot.wur.nl/428137 https://research.wur.nl/en/publications/shifts-in-north-sea-forage-fish-productivity-and-potential-fisher doi:10.1111/1365-2664.13038 info:eu-repo/semantics/restrictedAccess Wageningen University & Research Journal of Applied Ecology 55 (2018) 3 ISSN: 0021-8901 Bottom-up effects Fisheries management Fisheries yield Forage fish Functional complementarity Maximum sustainable yield Portfolio effect Recruitment Small pelagic fisheries System productivity info:eu-repo/semantics/article Article/Letter to editor info:eu-repo/semantics/publishedVersion 2018 ftunivwagenin https://doi.org/10.1111/1365-2664.13038 2023-12-20T23:16:45Z 1. 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.2. 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.3. 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 (Fmsy) decreased by 33%–68% and 26%–64%, respectively, between the higher and lower productivity periods.4. Synthesis and applications. The results demonstrate that fisheries reference points for short-lived planktivorous species are highly dynamic and respondrapidly 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 advise ... Article in Journal/Newspaper Calanus finmarchicus Wageningen UR (University & Research Centre): Digital Library Norway Journal of Applied Ecology 55 3 1092 1101 |
institution |
Open Polar |
collection |
Wageningen UR (University & Research Centre): Digital Library |
op_collection_id |
ftunivwagenin |
language |
English |
topic |
Bottom-up effects Fisheries management Fisheries yield Forage fish Functional complementarity Maximum sustainable yield Portfolio effect Recruitment Small pelagic fisheries System productivity |
spellingShingle |
Bottom-up effects Fisheries management Fisheries yield Forage fish Functional complementarity Maximum sustainable yield Portfolio effect Recruitment Small pelagic fisheries System productivity 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 |
topic_facet |
Bottom-up effects Fisheries management Fisheries yield Forage fish Functional complementarity Maximum sustainable yield Portfolio effect Recruitment Small pelagic fisheries System productivity |
description |
1. 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.2. 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.3. 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 (Fmsy) decreased by 33%–68% and 26%–64%, respectively, between the higher and lower productivity periods.4. Synthesis and applications. The results demonstrate that fisheries reference points for short-lived planktivorous species are highly dynamic and respondrapidly 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 advise ... |
format |
Article in Journal/Newspaper |
author |
Clausen, Lotte W. Rindorf, Anna van Deurs, Mikael Dickey-Collas, Mark Hintzen, Niels T. |
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 |
publishDate |
2018 |
url |
https://research.wur.nl/en/publications/shifts-in-north-sea-forage-fish-productivity-and-potential-fisher https://doi.org/10.1111/1365-2664.13038 |
geographic |
Norway |
geographic_facet |
Norway |
genre |
Calanus finmarchicus |
genre_facet |
Calanus finmarchicus |
op_source |
Journal of Applied Ecology 55 (2018) 3 ISSN: 0021-8901 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/289257 info:eu-repo/grantAgreement/EC/FP7/321553 https://edepot.wur.nl/428137 https://research.wur.nl/en/publications/shifts-in-north-sea-forage-fish-productivity-and-potential-fisher doi:10.1111/1365-2664.13038 |
op_rights |
info:eu-repo/semantics/restrictedAccess Wageningen University & Research |
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 |
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1788060251698757632 |