Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean
International audience The emergence of longline fishing around the world has been concomitant with an increase indepredation-interactions by odontocete whales (removal of fish caught on hooks), resulting insubstantial socio-economic and ecological impacts. The extent, trends and underlying mechanis...
Published in: | Scientific Reports |
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Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2019
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Subjects: | |
Online Access: | https://hal.science/hal-02032705 https://doi.org/10.1038/s41598-018-36389-x |
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ftanrparis:oai:HAL:hal-02032705v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Portail HAL-ANR (Agence Nationale de la Recherche) |
op_collection_id |
ftanrparis |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Tixier, Paul Burch, Paul Richard, Gaëtan Olsson, Karin Welsford, Dirk Lea, Mary-Anne Hindell, Mark Guinet, Christophe Janc, Anaïs Gasco, Nicolas Duhamel, Guy Villanueva, Maria Ching Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience The emergence of longline fishing around the world has been concomitant with an increase indepredation-interactions by odontocete whales (removal of fish caught on hooks), resulting insubstantial socio-economic and ecological impacts. The extent, trends and underlying mechanismsdriving these interactions remain poorly known. Using long-term (2003–2017) datasets from sevenmajor Patagonian toothfish (Dissostichus eleginoides) longline fisheries, this study assessed the levelsand 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 fishingpatterns in explaining between-fisheries variations of probabilities of odontocete interactions wasinvestigated. While interaction levels remained globally stable since the early 2000s, they variedgreatly between fisheries from 0 to >50% of the fishing days and area. Interaction probabilities wereinfluenced by the seasonal concentration of fishing effort, size of fishing areas, density of vessels, theirmobility and the depth at which they operated. The results suggest that between-fisheries variationsof interaction probabilities are largely explained by the extent to which vessels provide whales withopportunities for interactions. Determining the natural distribution of whales will, therefore, allowfishers to implement better strategies of spatio-temporal avoidance of depredation. |
author2 |
School of Life and Environmental Sciences (Burwood Campus) Australia Deakin University Burwood Commonwealth Scientific and Industrial Research Organisation (CSIRO) (CSIRO) Commonwealth Scientific and Industrial Research Organisation (CSIRO) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre for Environment, Fisheries & Aquaculture Science UK Department of Zoology Tel Aviv University (TAU) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Institute for Marine and Antarctic Studies Hobart (IMAS) University of Tasmania Hobart, Australia (UTAS) Département Milieux et Peuplements Aquatiques Muséum national d'Histoire naturelle (MNHN) Unité Sciences et Technologies Halieutiques (STH) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Coalition of Legal Toothfish Operators Australia (COLTO) School of Environmental and Life Sciences - SELS (Callaghan, Australia) University of Newcastle Callaghan, Australia (UoN) ANR-17-CE32-0007,OrcaDepred,OrcaDepred - Evaluation des conséquences écologiques et socio-économiques de la déprédation exercée par les cétacés sur les pêcheries à la palangre : Mise en œuvre d'une approche technico-économique en vue de sa suppression(2017) |
format |
Article in Journal/Newspaper |
author |
Tixier, Paul Burch, Paul Richard, Gaëtan Olsson, Karin Welsford, Dirk Lea, Mary-Anne Hindell, Mark Guinet, Christophe Janc, Anaïs Gasco, Nicolas Duhamel, Guy Villanueva, Maria Ching Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John |
author_facet |
Tixier, Paul Burch, Paul Richard, Gaëtan Olsson, Karin Welsford, Dirk Lea, Mary-Anne Hindell, Mark Guinet, Christophe Janc, Anaïs Gasco, Nicolas Duhamel, Guy Villanueva, Maria Ching Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John |
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 |
HAL CCSD |
publishDate |
2019 |
url |
https://hal.science/hal-02032705 https://doi.org/10.1038/s41598-018-36389-x |
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 |
ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-02032705 Scientific Reports, 2019, 9 (9), pp.1904. ⟨10.1038/s41598-018-36389-x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-018-36389-x hal-02032705 https://hal.science/hal-02032705 doi:10.1038/s41598-018-36389-x PUBMEDCENTRAL: PMC6374415 |
op_doi |
https://doi.org/10.1038/s41598-018-36389-x |
container_title |
Scientific Reports |
container_volume |
9 |
container_issue |
1 |
_version_ |
1797586351124643840 |
spelling |
ftanrparis:oai:HAL:hal-02032705v1 2024-04-28T08:27:21+00:00 Commercial fishing patterns influence odontocete whale-longline interactions in the Southern Ocean Tixier, Paul Burch, Paul Richard, Gaëtan Olsson, Karin Welsford, Dirk Lea, Mary-Anne Hindell, Mark Guinet, Christophe Janc, Anaïs Gasco, Nicolas Duhamel, Guy Villanueva, Maria Ching Suberg, Lavinia Arangio, Rhys Söffker, Marta Arnould, John School of Life and Environmental Sciences (Burwood Campus) Australia Deakin University Burwood Commonwealth Scientific and Industrial Research Organisation (CSIRO) (CSIRO) Commonwealth Scientific and Industrial Research Organisation (CSIRO) Centre d'Études Biologiques de Chizé - UMR 7372 (CEBC) Institut National de la Recherche Agronomique (INRA)-La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) Centre for Environment, Fisheries & Aquaculture Science UK Department of Zoology Tel Aviv University (TAU) Australian Antarctic Division (AAD) Australian Government, Department of the Environment and Energy Institute for Marine and Antarctic Studies Hobart (IMAS) University of Tasmania Hobart, Australia (UTAS) Département Milieux et Peuplements Aquatiques Muséum national d'Histoire naturelle (MNHN) Unité Sciences et Technologies Halieutiques (STH) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Coalition of Legal Toothfish Operators Australia (COLTO) School of Environmental and Life Sciences - SELS (Callaghan, Australia) University of Newcastle Callaghan, Australia (UoN) ANR-17-CE32-0007,OrcaDepred,OrcaDepred - Evaluation des conséquences écologiques et socio-économiques de la déprédation exercée par les cétacés sur les pêcheries à la palangre : Mise en œuvre d'une approche technico-économique en vue de sa suppression(2017) 2019-12 https://hal.science/hal-02032705 https://doi.org/10.1038/s41598-018-36389-x en eng HAL CCSD Nature Publishing Group info:eu-repo/semantics/altIdentifier/doi/10.1038/s41598-018-36389-x hal-02032705 https://hal.science/hal-02032705 doi:10.1038/s41598-018-36389-x PUBMEDCENTRAL: PMC6374415 ISSN: 2045-2322 EISSN: 2045-2322 Scientific Reports https://hal.science/hal-02032705 Scientific Reports, 2019, 9 (9), pp.1904. ⟨10.1038/s41598-018-36389-x⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2019 ftanrparis https://doi.org/10.1038/s41598-018-36389-x 2024-04-09T15:23:54Z International audience The emergence of longline fishing around the world has been concomitant with an increase indepredation-interactions by odontocete whales (removal of fish caught on hooks), resulting insubstantial socio-economic and ecological impacts. The extent, trends and underlying mechanismsdriving these interactions remain poorly known. Using long-term (2003–2017) datasets from sevenmajor Patagonian toothfish (Dissostichus eleginoides) longline fisheries, this study assessed the levelsand 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 fishingpatterns in explaining between-fisheries variations of probabilities of odontocete interactions wasinvestigated. While interaction levels remained globally stable since the early 2000s, they variedgreatly between fisheries from 0 to >50% of the fishing days and area. Interaction probabilities wereinfluenced by the seasonal concentration of fishing effort, size of fishing areas, density of vessels, theirmobility and the depth at which they operated. The results suggest that between-fisheries variationsof interaction probabilities are largely explained by the extent to which vessels provide whales withopportunities for interactions. Determining the natural distribution of whales will, therefore, allowfishers 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 Portail HAL-ANR (Agence Nationale de la Recherche) Scientific Reports 9 1 |