Incidental capture of seabirds in Argentinean side-haul trawlers

Autores
Tamini, Leandro Luis; Chavez, Leandro Nahuel; Dellacasa, R. F.; Crawford, R.; Frere, Esteban
Año de publicación
2021
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Between April 2008 and July 2015, we conducted a total of 18 trips on five different side-haul trawlers fishing within the Argentine Exclusive Economic Zone, monitoring 486 hauls. We observed 100% of the hauls and monitored trawl cables for 136.7 hours, about 5% of the trawl effort, to identify the levels of seabird bycatch from net entanglements and collisions with trawl cables. A total of 35 net entanglements of White-chinned Petrels Procellaria aequinoctialis, Great Shearwaters Ardenna gravis, Black-browed Albatrosses Thalassarche melanophris and Southern Royal Albatross Diomedea epomophora were recorded, all of which occurred during the autumn and winter. Additionally, 656 seabird collisions against trawl cables were recorded including 39 heavy, 96 medium and 521 light. Further, we recorded nine Black-browed Albatrosses and two Great Shearwaters potentially dead. Although in the study fishery the number of deaths in the trawl cables could surpass the number of birds incidentally killed in nets, the mortality rate caused by the latter type of interaction far exceeds those observed in nets from other trawl fisheries operating in the Patagonian Shelf. Fortunately, 26% of the seabirds entangled in the net were recovered and released alive, which indicates that awareness and training in safe bird handling and release may improve captured seabird survival rates. The main objectives of this work is to highlight a little-studied source of seabird mortality by entanglement, to generate discussion on potential technical mitigation measures for side-haul trawl fisheries, and to propose crew training in safe handling and release of seabirds as an immediate mitigation measure.
Fil: Tamini, Leandro Luis. Albatross Task Force Argentina; Argentina
Fil: Chavez, Leandro Nahuel. Albatross Task Force Argentina; Argentina
Fil: Dellacasa, R. F.. Albatross Task Force Argentina; Argentina
Fil: Crawford, R.. Birdlife International; Reino Unido. Royal Society For The Protection Of Birds; Reino Unido
Fil: Frere, Esteban. Birdlife International; Reino Unido. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Materia
BYCATCH
ENTANGLEMENT
PATAGONIAN SHELF
SEABIRD CONSERVATION
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/167074
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/167074
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Incidental capture of seabirds in Argentinean side-haul trawlersTamini, Leandro LuisChavez, Leandro NahuelDellacasa, R. F.Crawford, R.Frere, EstebanBYCATCHENTANGLEMENTPATAGONIAN SHELFSEABIRD CONSERVATIONhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Between April 2008 and July 2015, we conducted a total of 18 trips on five different side-haul trawlers fishing within the Argentine Exclusive Economic Zone, monitoring 486 hauls. We observed 100% of the hauls and monitored trawl cables for 136.7 hours, about 5% of the trawl effort, to identify the levels of seabird bycatch from net entanglements and collisions with trawl cables. A total of 35 net entanglements of White-chinned Petrels Procellaria aequinoctialis, Great Shearwaters Ardenna gravis, Black-browed Albatrosses Thalassarche melanophris and Southern Royal Albatross Diomedea epomophora were recorded, all of which occurred during the autumn and winter. Additionally, 656 seabird collisions against trawl cables were recorded including 39 heavy, 96 medium and 521 light. Further, we recorded nine Black-browed Albatrosses and two Great Shearwaters potentially dead. Although in the study fishery the number of deaths in the trawl cables could surpass the number of birds incidentally killed in nets, the mortality rate caused by the latter type of interaction far exceeds those observed in nets from other trawl fisheries operating in the Patagonian Shelf. Fortunately, 26% of the seabirds entangled in the net were recovered and released alive, which indicates that awareness and training in safe bird handling and release may improve captured seabird survival rates. The main objectives of this work is to highlight a little-studied source of seabird mortality by entanglement, to generate discussion on potential technical mitigation measures for side-haul trawl fisheries, and to propose crew training in safe handling and release of seabirds as an immediate mitigation measure.Fil: Tamini, Leandro Luis. Albatross Task Force Argentina; ArgentinaFil: Chavez, Leandro Nahuel. Albatross Task Force Argentina; ArgentinaFil: Dellacasa, R. F.. Albatross Task Force Argentina; ArgentinaFil: Crawford, R.. Birdlife International; Reino Unido. Royal Society For The Protection Of Birds; Reino UnidoFil: Frere, Esteban. Birdlife International; Reino Unido. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaCambridge University Press2021-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/167074Tamini, Leandro Luis; Chavez, Leandro Nahuel; Dellacasa, R. F.; Crawford, R.; Frere, Esteban; Incidental capture of seabirds in Argentinean side-haul trawlers; Cambridge University Press; Bird Conservation International; 31; 4; 12-2021; 591-6040959-27091474-0001CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/bird-conservation-international/article/incidental-capture-of-seabirds-in-argentinean-sidehaul-trawlers/12EA314C52343D1F0577DA6567E38422info:eu-repo/semantics/altIdentifier/doi/10.1017/S0959270920000623info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:10:48Zoai:ri.conicet.gov.ar:11336/167074instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:10:49.062CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Incidental capture of seabirds in Argentinean side-haul trawlers
title Incidental capture of seabirds in Argentinean side-haul trawlers
spellingShingle Incidental capture of seabirds in Argentinean side-haul trawlers
Tamini, Leandro Luis
BYCATCH
ENTANGLEMENT
PATAGONIAN SHELF
SEABIRD CONSERVATION
title_short Incidental capture of seabirds in Argentinean side-haul trawlers
title_full Incidental capture of seabirds in Argentinean side-haul trawlers
title_fullStr Incidental capture of seabirds in Argentinean side-haul trawlers
title_full_unstemmed Incidental capture of seabirds in Argentinean side-haul trawlers
title_sort Incidental capture of seabirds in Argentinean side-haul trawlers
dc.creator.none.fl_str_mv Tamini, Leandro Luis
Chavez, Leandro Nahuel
Dellacasa, R. F.
Crawford, R.
Frere, Esteban
author Tamini, Leandro Luis
author_facet Tamini, Leandro Luis
Chavez, Leandro Nahuel
Dellacasa, R. F.
Crawford, R.
Frere, Esteban
author_role author
author2 Chavez, Leandro Nahuel
Dellacasa, R. F.
Crawford, R.
Frere, Esteban
author2_role author
author
author
author
dc.subject.none.fl_str_mv BYCATCH
ENTANGLEMENT
PATAGONIAN SHELF
SEABIRD CONSERVATION
topic BYCATCH
ENTANGLEMENT
PATAGONIAN SHELF
SEABIRD CONSERVATION
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Between April 2008 and July 2015, we conducted a total of 18 trips on five different side-haul trawlers fishing within the Argentine Exclusive Economic Zone, monitoring 486 hauls. We observed 100% of the hauls and monitored trawl cables for 136.7 hours, about 5% of the trawl effort, to identify the levels of seabird bycatch from net entanglements and collisions with trawl cables. A total of 35 net entanglements of White-chinned Petrels Procellaria aequinoctialis, Great Shearwaters Ardenna gravis, Black-browed Albatrosses Thalassarche melanophris and Southern Royal Albatross Diomedea epomophora were recorded, all of which occurred during the autumn and winter. Additionally, 656 seabird collisions against trawl cables were recorded including 39 heavy, 96 medium and 521 light. Further, we recorded nine Black-browed Albatrosses and two Great Shearwaters potentially dead. Although in the study fishery the number of deaths in the trawl cables could surpass the number of birds incidentally killed in nets, the mortality rate caused by the latter type of interaction far exceeds those observed in nets from other trawl fisheries operating in the Patagonian Shelf. Fortunately, 26% of the seabirds entangled in the net were recovered and released alive, which indicates that awareness and training in safe bird handling and release may improve captured seabird survival rates. The main objectives of this work is to highlight a little-studied source of seabird mortality by entanglement, to generate discussion on potential technical mitigation measures for side-haul trawl fisheries, and to propose crew training in safe handling and release of seabirds as an immediate mitigation measure.
Fil: Tamini, Leandro Luis. Albatross Task Force Argentina; Argentina
Fil: Chavez, Leandro Nahuel. Albatross Task Force Argentina; Argentina
Fil: Dellacasa, R. F.. Albatross Task Force Argentina; Argentina
Fil: Crawford, R.. Birdlife International; Reino Unido. Royal Society For The Protection Of Birds; Reino Unido
Fil: Frere, Esteban. Birdlife International; Reino Unido. Universidad Nacional de la Patagonia Austral. Unidad Académica Caleta Olivia. Centro de Investigaciones Puerto Deseado; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
description Between April 2008 and July 2015, we conducted a total of 18 trips on five different side-haul trawlers fishing within the Argentine Exclusive Economic Zone, monitoring 486 hauls. We observed 100% of the hauls and monitored trawl cables for 136.7 hours, about 5% of the trawl effort, to identify the levels of seabird bycatch from net entanglements and collisions with trawl cables. A total of 35 net entanglements of White-chinned Petrels Procellaria aequinoctialis, Great Shearwaters Ardenna gravis, Black-browed Albatrosses Thalassarche melanophris and Southern Royal Albatross Diomedea epomophora were recorded, all of which occurred during the autumn and winter. Additionally, 656 seabird collisions against trawl cables were recorded including 39 heavy, 96 medium and 521 light. Further, we recorded nine Black-browed Albatrosses and two Great Shearwaters potentially dead. Although in the study fishery the number of deaths in the trawl cables could surpass the number of birds incidentally killed in nets, the mortality rate caused by the latter type of interaction far exceeds those observed in nets from other trawl fisheries operating in the Patagonian Shelf. Fortunately, 26% of the seabirds entangled in the net were recovered and released alive, which indicates that awareness and training in safe bird handling and release may improve captured seabird survival rates. The main objectives of this work is to highlight a little-studied source of seabird mortality by entanglement, to generate discussion on potential technical mitigation measures for side-haul trawl fisheries, and to propose crew training in safe handling and release of seabirds as an immediate mitigation measure.
publishDate 2021
dc.date.none.fl_str_mv 2021-12
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/167074
Tamini, Leandro Luis; Chavez, Leandro Nahuel; Dellacasa, R. F.; Crawford, R.; Frere, Esteban; Incidental capture of seabirds in Argentinean side-haul trawlers; Cambridge University Press; Bird Conservation International; 31; 4; 12-2021; 591-604
0959-2709
1474-0001
CONICET Digital
CONICET
url http://hdl.handle.net/11336/167074
identifier_str_mv Tamini, Leandro Luis; Chavez, Leandro Nahuel; Dellacasa, R. F.; Crawford, R.; Frere, Esteban; Incidental capture of seabirds in Argentinean side-haul trawlers; Cambridge University Press; Bird Conservation International; 31; 4; 12-2021; 591-604
0959-2709
1474-0001
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.cambridge.org/core/journals/bird-conservation-international/article/incidental-capture-of-seabirds-in-argentinean-sidehaul-trawlers/12EA314C52343D1F0577DA6567E38422
info:eu-repo/semantics/altIdentifier/doi/10.1017/S0959270920000623
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Cambridge University Press
publisher.none.fl_str_mv Cambridge University Press
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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