Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean
The emergence of longline fishing around the world has been concomitant with an increase in depredation-interactions by odontocete whales (removal of fish caught on hooks), resulting in substantial socio-economic and ecological impacts. The extent, trends and underlying mechanisms driving these inte...
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Online Access: | https://archimer.ifremer.fr/doc/00481/59242/61961.pdf https://archimer.ifremer.fr/doc/00481/59242/61962.pdf https://archimer.ifremer.fr/doc/00481/59242/61963.pdf https://archimer.ifremer.fr/doc/00481/59242/61964.pdf https://archimer.ifremer.fr/doc/00481/59242/61965.pdf https://archimer.ifremer.fr/doc/00481/59242/61966.pdf https://doi.org/10.1038/s41598-018-36389-x https://archimer.ifremer.fr/doc/00481/59242/ |
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ftarchimer:oai:archimer.ifremer.fr:59242 2023-05-15T17:03:37+02:00 Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean Tixier, Paul Burch, Paul Richard, Gaetan Olsson, Karin Welsford, Dirk Lea, Mary-anne Hindell, Mark A. Guinet, Christophe Janc, Anais Gasco, Nicolas Duhamel, Guy Villanueva, Ching-maria Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John P.y. 2019-02 application/pdf https://archimer.ifremer.fr/doc/00481/59242/61961.pdf https://archimer.ifremer.fr/doc/00481/59242/61962.pdf https://archimer.ifremer.fr/doc/00481/59242/61963.pdf https://archimer.ifremer.fr/doc/00481/59242/61964.pdf https://archimer.ifremer.fr/doc/00481/59242/61965.pdf https://archimer.ifremer.fr/doc/00481/59242/61966.pdf https://doi.org/10.1038/s41598-018-36389-x https://archimer.ifremer.fr/doc/00481/59242/ eng eng Nature https://archimer.ifremer.fr/doc/00481/59242/61961.pdf https://archimer.ifremer.fr/doc/00481/59242/61962.pdf https://archimer.ifremer.fr/doc/00481/59242/61963.pdf https://archimer.ifremer.fr/doc/00481/59242/61964.pdf https://archimer.ifremer.fr/doc/00481/59242/61965.pdf https://archimer.ifremer.fr/doc/00481/59242/61966.pdf doi:10.1038/s41598-018-36389-x https://archimer.ifremer.fr/doc/00481/59242/ info:eu-repo/semantics/openAccess restricted use Scientific Reports (2045-2322) (Nature), 2019-02 , Vol. 9 , N. 1904 , P. 11p. text Publication info:eu-repo/semantics/article 2019 ftarchimer https://doi.org/10.1038/s41598-018-36389-x 2021-09-23T20:32:06Z The emergence of longline fishing around the world has been concomitant with an increase in depredation-interactions by odontocete whales (removal of fish caught on hooks), resulting in substantial socio-economic and ecological impacts. The extent, trends and underlying mechanisms driving these interactions remain poorly known. Using long-term (2003–2017) datasets from seven major Patagonian toothfish (Dissostichus eleginoides) longline fisheries, this study assessed the levels and inter-annual trends of sperm whale (Physeter macrocephalus) and/or killer whale (Orcinus orca) interactions as proportions of fishing time (days) and fishing area (spatial cells). The role of fishing patterns in explaining between-fisheries variations of probabilities of odontocete interactions was investigated. While interaction levels remained globally stable since the early 2000s, they varied greatly between fisheries from 0 to >50% of the fishing days and area. Interaction probabilities were influenced by the seasonal concentration of fishing effort, size of fishing areas, density of vessels, their mobility and the depth at which they operated. The results suggest that between-fisheries variations of interaction probabilities are largely explained by the extent to which vessels provide whales with opportunities for interactions. Determining the natural distribution of whales will, therefore, allow fishers to implement better strategies of spatio-temporal avoidance of depredation. Article in Journal/Newspaper Killer Whale Orca Orcinus orca Patagonian Toothfish Physeter macrocephalus Southern Ocean Sperm whale Killer whale Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Southern Ocean Scientific Reports 9 1 |
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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 |
description |
The emergence of longline fishing around the world has been concomitant with an increase in depredation-interactions by odontocete whales (removal of fish caught on hooks), resulting in substantial socio-economic and ecological impacts. The extent, trends and underlying mechanisms driving these interactions remain poorly known. Using long-term (2003–2017) datasets from seven major Patagonian toothfish (Dissostichus eleginoides) longline fisheries, this study assessed the levels and inter-annual trends of sperm whale (Physeter macrocephalus) and/or killer whale (Orcinus orca) interactions as proportions of fishing time (days) and fishing area (spatial cells). The role of fishing patterns in explaining between-fisheries variations of probabilities of odontocete interactions was investigated. While interaction levels remained globally stable since the early 2000s, they varied greatly between fisheries from 0 to >50% of the fishing days and area. Interaction probabilities were influenced by the seasonal concentration of fishing effort, size of fishing areas, density of vessels, their mobility and the depth at which they operated. The results suggest that between-fisheries variations of interaction probabilities are largely explained by the extent to which vessels provide whales with opportunities for interactions. Determining the natural distribution of whales will, therefore, allow fishers to implement better strategies of spatio-temporal avoidance of depredation. |
format |
Article in Journal/Newspaper |
author |
Tixier, Paul Burch, Paul Richard, Gaetan Olsson, Karin Welsford, Dirk Lea, Mary-anne Hindell, Mark A. Guinet, Christophe Janc, Anais Gasco, Nicolas Duhamel, Guy Villanueva, Ching-maria Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John P.y. |
spellingShingle |
Tixier, Paul Burch, Paul Richard, Gaetan Olsson, Karin Welsford, Dirk Lea, Mary-anne Hindell, Mark A. Guinet, Christophe Janc, Anais Gasco, Nicolas Duhamel, Guy Villanueva, Ching-maria Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John P.y. Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
author_facet |
Tixier, Paul Burch, Paul Richard, Gaetan Olsson, Karin Welsford, Dirk Lea, Mary-anne Hindell, Mark A. Guinet, Christophe Janc, Anais Gasco, Nicolas Duhamel, Guy Villanueva, Ching-maria Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John P.y. |
author_sort |
Tixier, Paul |
title |
Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
title_short |
Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
title_full |
Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
title_fullStr |
Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
title_full_unstemmed |
Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
title_sort |
commercial fishing patterns influence odontocete whale-longline interactions in the southern ocean |
publisher |
Nature |
publishDate |
2019 |
url |
https://archimer.ifremer.fr/doc/00481/59242/61961.pdf https://archimer.ifremer.fr/doc/00481/59242/61962.pdf https://archimer.ifremer.fr/doc/00481/59242/61963.pdf https://archimer.ifremer.fr/doc/00481/59242/61964.pdf https://archimer.ifremer.fr/doc/00481/59242/61965.pdf https://archimer.ifremer.fr/doc/00481/59242/61966.pdf https://doi.org/10.1038/s41598-018-36389-x https://archimer.ifremer.fr/doc/00481/59242/ |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Killer Whale Orca Orcinus orca Patagonian Toothfish Physeter macrocephalus Southern Ocean Sperm whale Killer whale |
genre_facet |
Killer Whale Orca Orcinus orca Patagonian Toothfish Physeter macrocephalus Southern Ocean Sperm whale Killer whale |
op_source |
Scientific Reports (2045-2322) (Nature), 2019-02 , Vol. 9 , N. 1904 , P. 11p. |
op_relation |
https://archimer.ifremer.fr/doc/00481/59242/61961.pdf https://archimer.ifremer.fr/doc/00481/59242/61962.pdf https://archimer.ifremer.fr/doc/00481/59242/61963.pdf https://archimer.ifremer.fr/doc/00481/59242/61964.pdf https://archimer.ifremer.fr/doc/00481/59242/61965.pdf https://archimer.ifremer.fr/doc/00481/59242/61966.pdf doi:10.1038/s41598-018-36389-x https://archimer.ifremer.fr/doc/00481/59242/ |
op_rights |
info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1038/s41598-018-36389-x |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
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1766057514479124480 |