Changing fish distributions challenge the effective management of European fisheries
Changes in fish distribution are being observed across the globe. In Europe's Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same propor...
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crwiley:10.1111/ecog.04864 2024-09-30T14:40:02+00:00 Changing fish distributions challenge the effective management of European fisheries Baudron, Alan Ronan Brunel, Thomas Blanchet, Marie‐Anne Hidalgo, Manuel Chust, Guillem Brown, Elliot John Kleisner, Kristin M. Millar, Colin MacKenzie, Brian R. Nikolioudakis, Nikolaos Fernandes, Jose A. Fernandes, Paul G. 2020 http://dx.doi.org/10.1111/ecog.04864 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.04864 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.04864 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ecog.04864 en eng Wiley http://creativecommons.org/licenses/by/3.0/ Ecography volume 43, issue 4, page 494-505 ISSN 0906-7590 1600-0587 journal-article 2020 crwiley https://doi.org/10.1111/ecog.04864 2024-09-05T05:04:56Z Changes in fish distribution are being observed across the globe. In Europe's Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three‐tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 yr. All species have experienced changes in distribution, five of which did so across management areas. A cross‐species analysis suggested that shifts in areas of suitable thermal habitat, and density‐dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of relative stability to allocate quotas. Article in Journal/Newspaper Northeast Atlantic Wiley Online Library Ecography 43 4 494 505 |
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Wiley Online Library |
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English |
description |
Changes in fish distribution are being observed across the globe. In Europe's Common Fisheries Policy, the share of the catch of each fish stock is split among management areas using a fixed allocation key known as ‘Relative Stability’: in each management area, member states get the same proportion of the total catch each year. That proportion is largely based on catches made by those member states in the 1970s. Changes in distribution can, therefore, result in a mismatch between quota shares and regional abundances within management areas, with potential repercussions for the status of fish stocks and the fisheries that depend on them. Assessing distribution changes is crucial to ensure adequate management and sustainable exploitation of our fish resources. We analysed scientific survey data using a three‐tiered analytical approach to provide, for the first time, an overview of changes in distribution for 19 northeast Atlantic fish species encompassing 73 commercial stocks over 30 yr. All species have experienced changes in distribution, five of which did so across management areas. A cross‐species analysis suggested that shifts in areas of suitable thermal habitat, and density‐dependent use of these areas, are at least partly responsible for the observed changes. These findings challenge the current use of relative stability to allocate quotas. |
format |
Article in Journal/Newspaper |
author |
Baudron, Alan Ronan Brunel, Thomas Blanchet, Marie‐Anne Hidalgo, Manuel Chust, Guillem Brown, Elliot John Kleisner, Kristin M. Millar, Colin MacKenzie, Brian R. Nikolioudakis, Nikolaos Fernandes, Jose A. Fernandes, Paul G. |
spellingShingle |
Baudron, Alan Ronan Brunel, Thomas Blanchet, Marie‐Anne Hidalgo, Manuel Chust, Guillem Brown, Elliot John Kleisner, Kristin M. Millar, Colin MacKenzie, Brian R. Nikolioudakis, Nikolaos Fernandes, Jose A. Fernandes, Paul G. Changing fish distributions challenge the effective management of European fisheries |
author_facet |
Baudron, Alan Ronan Brunel, Thomas Blanchet, Marie‐Anne Hidalgo, Manuel Chust, Guillem Brown, Elliot John Kleisner, Kristin M. Millar, Colin MacKenzie, Brian R. Nikolioudakis, Nikolaos Fernandes, Jose A. Fernandes, Paul G. |
author_sort |
Baudron, Alan Ronan |
title |
Changing fish distributions challenge the effective management of European fisheries |
title_short |
Changing fish distributions challenge the effective management of European fisheries |
title_full |
Changing fish distributions challenge the effective management of European fisheries |
title_fullStr |
Changing fish distributions challenge the effective management of European fisheries |
title_full_unstemmed |
Changing fish distributions challenge the effective management of European fisheries |
title_sort |
changing fish distributions challenge the effective management of european fisheries |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/ecog.04864 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fecog.04864 https://onlinelibrary.wiley.com/doi/pdf/10.1111/ecog.04864 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/ecog.04864 |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Ecography volume 43, issue 4, page 494-505 ISSN 0906-7590 1600-0587 |
op_rights |
http://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.1111/ecog.04864 |
container_title |
Ecography |
container_volume |
43 |
container_issue |
4 |
container_start_page |
494 |
op_container_end_page |
505 |
_version_ |
1811642586927988736 |