Determining long‐term changes in a skate assemblage with aggregated landings and limited species data
Abstract Sustainable fisheries management requires assessment of exploited populations and communities. Traditional fisheries stock assessment methods need species‐specific input data, which for skates have only recently become available in Europe. To overcome this limitation, a Bayesian multispecie...
Published in: | Fisheries Management and Ecology |
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crwiley:10.1111/fme.12367 2024-06-23T07:54:28+00:00 Determining long‐term changes in a skate assemblage with aggregated landings and limited species data Marandel, Florianne Lorance, Pascal Trenkel, Verena M. Agence Nationale de la Recherche 2019 http://dx.doi.org/10.1111/fme.12367 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffme.12367 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12367 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12367 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Fisheries Management and Ecology volume 26, issue 4, page 365-373 ISSN 0969-997X 1365-2400 journal-article 2019 crwiley https://doi.org/10.1111/fme.12367 2024-06-06T04:23:08Z Abstract Sustainable fisheries management requires assessment of exploited populations and communities. Traditional fisheries stock assessment methods need species‐specific input data, which for skates have only recently become available in Europe. To overcome this limitation, a Bayesian multispecies biomass production model was developed. In addition to aggregated landings, input data are short time series with species‐specific information (landings and biomass indices). Applying the approach to four main skate species and a group of two skate species, all managed together in the Bay of Biscay (Northeast Atlantic), long‐term changes in the skate assemblage composition were identified. Since the 1990s, Leucoraja naevus became increasingly dominant, while the contributions of the other three species ( Raja brachyura , Raja clavata and Raja montagui ) declined. The abundance of the grouped Leucoraja fullonica and L. circularis has also strongly decreased, suggesting long‐term overexploitation. All species except this species group are expected to increase over the next decade under current harvest rates. Currently, the species considered here are managed under a single fishing quota making it unlikely that the group of the two most depleted species will recover soon. The multispecies modelling approach bears promise for other harvested assemblages for which only grouped harvest information is available for certain periods. Article in Journal/Newspaper Leucoraja fullonica Northeast Atlantic Wiley Online Library Fisheries Management and Ecology 26 4 365 373 |
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Wiley Online Library |
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crwiley |
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English |
description |
Abstract Sustainable fisheries management requires assessment of exploited populations and communities. Traditional fisheries stock assessment methods need species‐specific input data, which for skates have only recently become available in Europe. To overcome this limitation, a Bayesian multispecies biomass production model was developed. In addition to aggregated landings, input data are short time series with species‐specific information (landings and biomass indices). Applying the approach to four main skate species and a group of two skate species, all managed together in the Bay of Biscay (Northeast Atlantic), long‐term changes in the skate assemblage composition were identified. Since the 1990s, Leucoraja naevus became increasingly dominant, while the contributions of the other three species ( Raja brachyura , Raja clavata and Raja montagui ) declined. The abundance of the grouped Leucoraja fullonica and L. circularis has also strongly decreased, suggesting long‐term overexploitation. All species except this species group are expected to increase over the next decade under current harvest rates. Currently, the species considered here are managed under a single fishing quota making it unlikely that the group of the two most depleted species will recover soon. The multispecies modelling approach bears promise for other harvested assemblages for which only grouped harvest information is available for certain periods. |
author2 |
Agence Nationale de la Recherche |
format |
Article in Journal/Newspaper |
author |
Marandel, Florianne Lorance, Pascal Trenkel, Verena M. |
spellingShingle |
Marandel, Florianne Lorance, Pascal Trenkel, Verena M. Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
author_facet |
Marandel, Florianne Lorance, Pascal Trenkel, Verena M. |
author_sort |
Marandel, Florianne |
title |
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
title_short |
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
title_full |
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
title_fullStr |
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
title_full_unstemmed |
Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
title_sort |
determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
publisher |
Wiley |
publishDate |
2019 |
url |
http://dx.doi.org/10.1111/fme.12367 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Ffme.12367 https://onlinelibrary.wiley.com/doi/pdf/10.1111/fme.12367 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/fme.12367 |
genre |
Leucoraja fullonica Northeast Atlantic |
genre_facet |
Leucoraja fullonica Northeast Atlantic |
op_source |
Fisheries Management and Ecology volume 26, issue 4, page 365-373 ISSN 0969-997X 1365-2400 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/fme.12367 |
container_title |
Fisheries Management and Ecology |
container_volume |
26 |
container_issue |
4 |
container_start_page |
365 |
op_container_end_page |
373 |
_version_ |
1802646641411358720 |