Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada)
Globally, commercial fisheries have had a strong impact on elasmobranch populations directly through high catch rates and indirectly through bycatch. Consequently, the abundance of many species is declining to the extent that some are considered under threat of extinction. Regionally, this negative...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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2019
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Online Access: | http://hdl.handle.net/10261/326372 https://doi.org/10.1139/cjfas-2018-0302 |
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ftcsic:oai:digital.csic.es:10261/326372 2024-02-11T10:05:56+01:00 Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) Pennino, Maria Grazia Guijarro-García, Elena Vilela, Raúl Del Río, J.L. Bellido-Millán, José María 2019 http://hdl.handle.net/10261/326372 https://doi.org/10.1139/cjfas-2018-0302 en eng Canadian Science Publishing Centro Oceanográfico de Murcia Sí http://hdl.handle.net/10261/326372 doi:10.1139/cjfas-2018-0302 24576 none Centro Oceanográfico de Murcia Pesquerías artículo http://purl.org/coar/resource_type/c_6501 2019 ftcsic https://doi.org/10.1139/cjfas-2018-0302 2024-01-16T11:48:29Z Globally, commercial fisheries have had a strong impact on elasmobranch populations directly through high catch rates and indirectly through bycatch. Consequently, the abundance of many species is declining to the extent that some are considered under threat of extinction. Regionally, this negative trend is also evident in the international waters of the southern Grand Banks (off the coast of Newfoundland, Canada), where the occurrence of the thorny skate (Amblyraja radiata) has declined by nearly 70% in recent decades. This study used Bayesian species distribution models to investigate the habitat preference and biomass trends of the thorny skate during a 14-year period (2003–2017), linking five environmental predictors (i.e., bathymetry, sea bottom temperature, seabed aspect, slope, and rugosity) and prey distribution with fishery-independent data. Our findings identify some of the sensitive habitats for this species and the ecological factors that may be driving its population dynamics in the area. We argue that knowledge about the factors influencing the distribution of this species and spatiotemporal effects could be exploited as potential mitigation measures for future fishery management strategies. Article in Journal/Newspaper Newfoundland Digital.CSIC (Spanish National Research Council) Canada Canadian Journal of Fisheries and Aquatic Sciences 76 11 2121 2130 |
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Digital.CSIC (Spanish National Research Council) |
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language |
English |
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Centro Oceanográfico de Murcia Pesquerías |
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Centro Oceanográfico de Murcia Pesquerías Pennino, Maria Grazia Guijarro-García, Elena Vilela, Raúl Del Río, J.L. Bellido-Millán, José María Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
topic_facet |
Centro Oceanográfico de Murcia Pesquerías |
description |
Globally, commercial fisheries have had a strong impact on elasmobranch populations directly through high catch rates and indirectly through bycatch. Consequently, the abundance of many species is declining to the extent that some are considered under threat of extinction. Regionally, this negative trend is also evident in the international waters of the southern Grand Banks (off the coast of Newfoundland, Canada), where the occurrence of the thorny skate (Amblyraja radiata) has declined by nearly 70% in recent decades. This study used Bayesian species distribution models to investigate the habitat preference and biomass trends of the thorny skate during a 14-year period (2003–2017), linking five environmental predictors (i.e., bathymetry, sea bottom temperature, seabed aspect, slope, and rugosity) and prey distribution with fishery-independent data. Our findings identify some of the sensitive habitats for this species and the ecological factors that may be driving its population dynamics in the area. We argue that knowledge about the factors influencing the distribution of this species and spatiotemporal effects could be exploited as potential mitigation measures for future fishery management strategies. |
format |
Article in Journal/Newspaper |
author |
Pennino, Maria Grazia Guijarro-García, Elena Vilela, Raúl Del Río, J.L. Bellido-Millán, José María |
author_facet |
Pennino, Maria Grazia Guijarro-García, Elena Vilela, Raúl Del Río, J.L. Bellido-Millán, José María |
author_sort |
Pennino, Maria Grazia |
title |
Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
title_short |
Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
title_full |
Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
title_fullStr |
Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
title_full_unstemmed |
Modeling the distribution of thorny skate (Amblyraja radiata) in the Southern Grand Banks (Newfoundland, Canada) |
title_sort |
modeling the distribution of thorny skate (amblyraja radiata) in the southern grand banks (newfoundland, canada) |
publisher |
Canadian Science Publishing |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/326372 https://doi.org/10.1139/cjfas-2018-0302 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Newfoundland |
genre_facet |
Newfoundland |
op_relation |
Centro Oceanográfico de Murcia Sí http://hdl.handle.net/10261/326372 doi:10.1139/cjfas-2018-0302 24576 |
op_rights |
none |
op_doi |
https://doi.org/10.1139/cjfas-2018-0302 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
76 |
container_issue |
11 |
container_start_page |
2121 |
op_container_end_page |
2130 |
_version_ |
1790603288507318272 |