Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea
Abstract Irish Sea fisheries have undergone considerable change in recent years following the decline of commercially important finfish stocks and their slow response to management's recovery plans. In 2015, the fishing industry called for a holistic exploration into the impact of environmental...
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crwiley:10.1111/fog.12486 2024-06-02T08:06:57+00:00 Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea Bentley, Jacob W. Serpetti, Natalia Fox, Clive J. Heymans, Johanna J. Reid, David G. 2020 http://dx.doi.org/10.1111/fog.12486 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12486 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fog.12486 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Oceanography volume 29, issue 5, page 415-435 ISSN 1054-6006 1365-2419 journal-article 2020 crwiley https://doi.org/10.1111/fog.12486 2024-05-03T10:40:24Z Abstract Irish Sea fisheries have undergone considerable change in recent years following the decline of commercially important finfish stocks and their slow response to management's recovery plans. In 2015, the fishing industry called for a holistic exploration into the impact of environmental change and food web effects to identify the drivers underpinning stock dynamics. In this study, we identify correlations between large‐scale climatic indicators, temperature, primary and secondary productivity, and fish recruitment in the Irish Sea and incorporate them into an Ecopath with Ecosim food web model co‐created by scientists and fishers. Negative correlations were found between the North Atlantic Oscillation winter index (NAOw) and large zooplankton abundance and between the Atlantic Multidecadal Oscillation (AMO) and the recruitment of cod ( Gadus morhua ) and whiting ( Merlangius merlangus) . Using correlation analyses to direct the addition of environmental drivers to the Irish Sea ecosystem model improved the models fit against observed biomass and catch data and revealed the indirect impacts of environmental change as mitigated through trophic interactions. Model simulations suggest that historic environmental change suppressed the overall production of commercial finfish, limiting opportunities for the fishing industry, whilst also dampening the rate of stock recovery despite marked reductions in fishing effort. These results suggest that failure to account for ecosystem information may lead to misconceived expectations and flawed fisheries management; therefore, there is a need to operationalize ecosystem information through management procedures to support fisheries advice. Article in Journal/Newspaper Gadus morhua North Atlantic North Atlantic oscillation Wiley Online Library Fisheries Oceanography 29 5 415 435 |
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English |
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Abstract Irish Sea fisheries have undergone considerable change in recent years following the decline of commercially important finfish stocks and their slow response to management's recovery plans. In 2015, the fishing industry called for a holistic exploration into the impact of environmental change and food web effects to identify the drivers underpinning stock dynamics. In this study, we identify correlations between large‐scale climatic indicators, temperature, primary and secondary productivity, and fish recruitment in the Irish Sea and incorporate them into an Ecopath with Ecosim food web model co‐created by scientists and fishers. Negative correlations were found between the North Atlantic Oscillation winter index (NAOw) and large zooplankton abundance and between the Atlantic Multidecadal Oscillation (AMO) and the recruitment of cod ( Gadus morhua ) and whiting ( Merlangius merlangus) . Using correlation analyses to direct the addition of environmental drivers to the Irish Sea ecosystem model improved the models fit against observed biomass and catch data and revealed the indirect impacts of environmental change as mitigated through trophic interactions. Model simulations suggest that historic environmental change suppressed the overall production of commercial finfish, limiting opportunities for the fishing industry, whilst also dampening the rate of stock recovery despite marked reductions in fishing effort. These results suggest that failure to account for ecosystem information may lead to misconceived expectations and flawed fisheries management; therefore, there is a need to operationalize ecosystem information through management procedures to support fisheries advice. |
format |
Article in Journal/Newspaper |
author |
Bentley, Jacob W. Serpetti, Natalia Fox, Clive J. Heymans, Johanna J. Reid, David G. |
spellingShingle |
Bentley, Jacob W. Serpetti, Natalia Fox, Clive J. Heymans, Johanna J. Reid, David G. Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
author_facet |
Bentley, Jacob W. Serpetti, Natalia Fox, Clive J. Heymans, Johanna J. Reid, David G. |
author_sort |
Bentley, Jacob W. |
title |
Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
title_short |
Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
title_full |
Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
title_fullStr |
Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
title_full_unstemmed |
Retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the Irish Sea |
title_sort |
retrospective analysis of the influence of environmental drivers on commercial stocks and fishing opportunities in the irish sea |
publisher |
Wiley |
publishDate |
2020 |
url |
http://dx.doi.org/10.1111/fog.12486 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fog.12486 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fog.12486 |
genre |
Gadus morhua North Atlantic North Atlantic oscillation |
genre_facet |
Gadus morhua North Atlantic North Atlantic oscillation |
op_source |
Fisheries Oceanography volume 29, issue 5, page 415-435 ISSN 1054-6006 1365-2419 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fog.12486 |
container_title |
Fisheries Oceanography |
container_volume |
29 |
container_issue |
5 |
container_start_page |
415 |
op_container_end_page |
435 |
_version_ |
1800751965622239232 |