Determining long‐term changes in a skate assemblage with aggregated landings and limited species data
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...
Published in: | Fisheries Management and Ecology |
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Online Access: | https://archimer.ifremer.fr/doc/00589/70088/68138.pdf https://doi.org/10.1111/fme.12367 https://archimer.ifremer.fr/doc/00589/70088/ |
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ftarchimer:oai:archimer.ifremer.fr:70088 2023-05-15T17:07:58+02:00 Determining long‐term changes in a skate assemblage with aggregated landings and limited species data Marandel, Florianne Lorance, Pascal Trenkel, Verena 2019-08 application/pdf https://archimer.ifremer.fr/doc/00589/70088/68138.pdf https://doi.org/10.1111/fme.12367 https://archimer.ifremer.fr/doc/00589/70088/ eng eng Wiley info:eu-repo/grantAgreement/EC/H2020/773713/EU//PANDORA https://archimer.ifremer.fr/doc/00589/70088/68138.pdf doi:10.1111/fme.12367 https://archimer.ifremer.fr/doc/00589/70088/ info:eu-repo/semantics/openAccess restricted use Fisheries Management And Ecology (0969-997X) (Wiley), 2019-08 , Vol. 26 , N. 4 , P. 365-373 community changes fishing impacts multispecies management multispecies model Rajiformes species composition vulnerable skates text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1111/fme.12367 2021-09-23T20:33:49Z 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 Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Fisheries Management and Ecology 26 4 365 373 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
community changes fishing impacts multispecies management multispecies model Rajiformes species composition vulnerable skates |
spellingShingle |
community changes fishing impacts multispecies management multispecies model Rajiformes species composition vulnerable skates Marandel, Florianne Lorance, Pascal Trenkel, Verena Determining long‐term changes in a skate assemblage with aggregated landings and limited species data |
topic_facet |
community changes fishing impacts multispecies management multispecies model Rajiformes species composition vulnerable skates |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Marandel, Florianne Lorance, Pascal Trenkel, Verena |
author_facet |
Marandel, Florianne Lorance, Pascal Trenkel, Verena |
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 |
https://archimer.ifremer.fr/doc/00589/70088/68138.pdf https://doi.org/10.1111/fme.12367 https://archimer.ifremer.fr/doc/00589/70088/ |
genre |
Leucoraja fullonica Northeast Atlantic |
genre_facet |
Leucoraja fullonica Northeast Atlantic |
op_source |
Fisheries Management And Ecology (0969-997X) (Wiley), 2019-08 , Vol. 26 , N. 4 , P. 365-373 |
op_relation |
info:eu-repo/grantAgreement/EC/H2020/773713/EU//PANDORA https://archimer.ifremer.fr/doc/00589/70088/68138.pdf doi:10.1111/fme.12367 https://archimer.ifremer.fr/doc/00589/70088/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
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_ |
1766063512066457600 |