Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery

The gillnet fishery in the Bay of Biscay has the highest bycatch of common dolphins (Delphinus delphis). However, the variety of vessels and fishing methods complicates understanding their susceptibility to incidental catches due to low sampling coverage. Given the voluntary nature of Remote Electro...

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Detalles Bibliográficos
Autores: Cuende, E., Basterretxea, M., Brotons, J.M., Urtizberea, A., Louzao, M.
Tipo de recurso: artículo
Fecha de publicación:2025
País:España
Institución:Universitat Politècnica de Catalunya (UPC)
Repositorio:UPCommons. Portal del coneixement obert de la UPC
Idioma:inglés
OAI Identifier:oai:upcommons.upc.edu:2117/452170
Acceso en línea:https://hdl.handle.net/2117/452170
https://dx.doi.org/10.5821/iwp.2025.24.13975
Access Level:acceso abierto
Palabra clave:Oceanography -- Research -- Spain -- Biscay
Oceanography -- Equipment and supplies
Underwater acoustics -- Spain -- Biscay
Fishing -- Spain -- Biscay
Biscay, Bay of (France and Spain)
Passive acoustic monitoring
Cetacean bycatch
High frecuency long term recorder
Artisanal fishery
Oceanografia -- Investigació -- País Basc -- Biscaia
Oceanografia -- Aparells i instruments
Acústica submarina -- País Basc -- Biscaia
Pesca -- País Basc -- Biscaia
Biscaia, Golf de (França i País Basc)
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Oceanografia
Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Pesca
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spelling Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fisheryCuende, E.Basterretxea, M.Brotons, J.M.Urtizberea, A.Louzao, M.Oceanography -- Research -- Spain -- BiscayOceanography -- Equipment and suppliesUnderwater acoustics -- Spain -- BiscayFishing -- Spain -- BiscayBiscay, Bay of (France and Spain)Passive acoustic monitoringCetacean bycatchHigh frecuency long term recorderArtisanal fisheryOceanografia -- Investigació -- País Basc -- BiscaiaOceanografia -- Aparells i instrumentsAcústica submarina -- País Basc -- BiscaiaPesca -- País Basc -- BiscaiaBiscaia, Golf de (França i País Basc)Àrees temàtiques de la UPC::Enginyeria civil::Geologia::OceanografiaÀrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesuraÀrees temàtiques de la UPC::Enginyeria agroalimentària::PescaThe gillnet fishery in the Bay of Biscay has the highest bycatch of common dolphins (Delphinus delphis). However, the variety of vessels and fishing methods complicates understanding their susceptibility to incidental catches due to low sampling coverage. Given the voluntary nature of Remote Electronic Monitoring (REM) camera installation, passive acoustic monitoring (PAM) remains the best approach to deepen our understanding of cetacean-fishing gear interactions in the Basque gillnet fishery. In this study, two pilot deployments of hydrophones were conducted on an artisanal vessel using gillnets off the Biscayan coast in 2024. Analysis of the recordings indicated a high presence of bottlenose dolphins (Tursiops truncatus) in August, consistent with previous studies on their distribution along the Basque coast, while no other cetaceans such as common dolphins, striped dolphins (Stenella coeruleoalba), or porpoises (Phocoena phocoena) were detected. Variations in hydrophone depth and the presence of vessels in the area affected recording quality. Future studies should increase recording days and optimize recording parameters. This study demonstrated that hydrophones perform adequately when attached to fishing nets in Basque fisheries, allowing for the investigation of interactions with small cetaceans in this area. Understanding the acoustic behaviour of cetaceans near fishing nets can reveal interaction mechanisms and inform the development of more targeted mitigation measures.Peer ReviewedSARTI20252025-01-0120262026-01-30journal articlehttp://purl.org/coar/resource_type/c_6501NAhttp://purl.org/coar/version/c_be7fb7dd8ff6fe43info:eu-repo/semantics/articleapplication/pdfhttps://hdl.handle.net/2117/452170https://dx.doi.org/10.5821/iwp.2025.24.13975reponame:UPCommons. Portal del coneixement obert de la UPCinstname:Universitat Politècnica de Catalunya (UPC)Inglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessoai:upcommons.upc.edu:2117/4521702026-05-27T15:37:01Z
dc.title.none.fl_str_mv Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
title Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
spellingShingle Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
Cuende, E.
Oceanography -- Research -- Spain -- Biscay
Oceanography -- Equipment and supplies
Underwater acoustics -- Spain -- Biscay
Fishing -- Spain -- Biscay
Biscay, Bay of (France and Spain)
Passive acoustic monitoring
Cetacean bycatch
High frecuency long term recorder
Artisanal fishery
Oceanografia -- Investigació -- País Basc -- Biscaia
Oceanografia -- Aparells i instruments
Acústica submarina -- País Basc -- Biscaia
Pesca -- País Basc -- Biscaia
Biscaia, Golf de (França i País Basc)
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Oceanografia
Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Pesca
title_short Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
title_full Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
title_fullStr Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
title_full_unstemmed Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
title_sort Utilizing passive acoustic monitoring to deepen understanding of cetacean-fishing gear interactions in the basque gillnet fishery
dc.creator.none.fl_str_mv Cuende, E.
Basterretxea, M.
Brotons, J.M.
Urtizberea, A.
Louzao, M.
author Cuende, E.
author_facet Cuende, E.
Basterretxea, M.
Brotons, J.M.
Urtizberea, A.
Louzao, M.
author_role author
author2 Basterretxea, M.
Brotons, J.M.
Urtizberea, A.
Louzao, M.
author2_role author
author
author
author
dc.subject.none.fl_str_mv Oceanography -- Research -- Spain -- Biscay
Oceanography -- Equipment and supplies
Underwater acoustics -- Spain -- Biscay
Fishing -- Spain -- Biscay
Biscay, Bay of (France and Spain)
Passive acoustic monitoring
Cetacean bycatch
High frecuency long term recorder
Artisanal fishery
Oceanografia -- Investigació -- País Basc -- Biscaia
Oceanografia -- Aparells i instruments
Acústica submarina -- País Basc -- Biscaia
Pesca -- País Basc -- Biscaia
Biscaia, Golf de (França i País Basc)
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Oceanografia
Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Pesca
topic Oceanography -- Research -- Spain -- Biscay
Oceanography -- Equipment and supplies
Underwater acoustics -- Spain -- Biscay
Fishing -- Spain -- Biscay
Biscay, Bay of (France and Spain)
Passive acoustic monitoring
Cetacean bycatch
High frecuency long term recorder
Artisanal fishery
Oceanografia -- Investigació -- País Basc -- Biscaia
Oceanografia -- Aparells i instruments
Acústica submarina -- País Basc -- Biscaia
Pesca -- País Basc -- Biscaia
Biscaia, Golf de (França i País Basc)
Àrees temàtiques de la UPC::Enginyeria civil::Geologia::Oceanografia
Àrees temàtiques de la UPC::Enginyeria electrònica::Instrumentació i mesura
Àrees temàtiques de la UPC::Enginyeria agroalimentària::Pesca
description The gillnet fishery in the Bay of Biscay has the highest bycatch of common dolphins (Delphinus delphis). However, the variety of vessels and fishing methods complicates understanding their susceptibility to incidental catches due to low sampling coverage. Given the voluntary nature of Remote Electronic Monitoring (REM) camera installation, passive acoustic monitoring (PAM) remains the best approach to deepen our understanding of cetacean-fishing gear interactions in the Basque gillnet fishery. In this study, two pilot deployments of hydrophones were conducted on an artisanal vessel using gillnets off the Biscayan coast in 2024. Analysis of the recordings indicated a high presence of bottlenose dolphins (Tursiops truncatus) in August, consistent with previous studies on their distribution along the Basque coast, while no other cetaceans such as common dolphins, striped dolphins (Stenella coeruleoalba), or porpoises (Phocoena phocoena) were detected. Variations in hydrophone depth and the presence of vessels in the area affected recording quality. Future studies should increase recording days and optimize recording parameters. This study demonstrated that hydrophones perform adequately when attached to fishing nets in Basque fisheries, allowing for the investigation of interactions with small cetaceans in this area. Understanding the acoustic behaviour of cetaceans near fishing nets can reveal interaction mechanisms and inform the development of more targeted mitigation measures.
publishDate 2025
dc.date.none.fl_str_mv 2025
2025-01-01
2026
2026-01-30
dc.type.none.fl_str_mv journal article
http://purl.org/coar/resource_type/c_6501
NA
http://purl.org/coar/version/c_be7fb7dd8ff6fe43
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv https://hdl.handle.net/2117/452170
https://dx.doi.org/10.5821/iwp.2025.24.13975
url https://hdl.handle.net/2117/452170
https://dx.doi.org/10.5821/iwp.2025.24.13975
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv SARTI
publisher.none.fl_str_mv SARTI
dc.source.none.fl_str_mv reponame:UPCommons. Portal del coneixement obert de la UPC
instname:Universitat Politècnica de Catalunya (UPC)
instname_str Universitat Politècnica de Catalunya (UPC)
reponame_str UPCommons. Portal del coneixement obert de la UPC
collection UPCommons. Portal del coneixement obert de la UPC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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