The effect of light attractor color in pelagic longline fisheries

Detalhes bibliográficos
Autor(a) principal: Afonso, André S.
Data de Publicação: 2021
Outros Autores: Mourato, Bruno, Hazin, Humberto, Hazin, Fábio H.V.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.8/5994
Resumo: The authors acknowledge funding provided by Financiadora de Estudos e Projetos – FINEP, Coordenaçao ˜ para o Aperfeiçoamento de Pessoal do Ensino Superior – CAPES CIMAR-II, Conselho Nacional de Desenvolvimento Científico e Tecnologico ´ – CNPq (ref. 445810/2015- 7), Fundaçao ˜ para a Ciˆencia e Tecnologia – FCT (ref. UID/ MAR/ 04292/2013), and the Integrated Programme of SR&TD “Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (ref. Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020 and European Union through the European Regional Development Fund. The authors are deeply thankful to two anonymous reviewers who helped to improve the overall quality of the manuscript.
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spelling The effect of light attractor color in pelagic longline fisheriesBycatch mitigationConservationFish attractorLongline selectivityTuna fisheriesThe authors acknowledge funding provided by Financiadora de Estudos e Projetos – FINEP, Coordenaçao ˜ para o Aperfeiçoamento de Pessoal do Ensino Superior – CAPES CIMAR-II, Conselho Nacional de Desenvolvimento Científico e Tecnologico ´ – CNPq (ref. 445810/2015- 7), Fundaçao ˜ para a Ciˆencia e Tecnologia – FCT (ref. UID/ MAR/ 04292/2013), and the Integrated Programme of SR&TD “Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (ref. Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020 and European Union through the European Regional Development Fund. The authors are deeply thankful to two anonymous reviewers who helped to improve the overall quality of the manuscript.Improving the selectivity of the fishing gear is one of the most promising methods to mitigate deleterious impacts of longline fisheries upon bycatch species. Light lures have recently become widespread in epipelagic longline fisheries since they increase the catch rates of valuable target species such as swordfish and tunas. Yet, little is known about their effect upon the incidence of bycatch. Here, we compared the catchability of target and bycatch species in a pelagic longline fishery targeting swordfish and tunas equipped with light attractors with three different colors to ascertain if any of the light attractor colors would enhance the selectivity of the fishing gear. A total of 3488 individuals were caught across 57 fishing sets. The proportion of target species to bycatch species was high (58–65 %) in each color treatment. Overall, green attractors (peak wavelength at 525 nm) exhibited the highest catch rates of target species, but they were also responsible for the highest incidence of bycatch, rendering 73 % and 82 % of the blue shark and sea turtle catch, respectively. Blue (peak wavelength at 465 nm) and white attractors caught significantly less individuals of both target and bycatch species. Further, significant interactions between light attractor color and the intensity of lunar illumination were observed for most species analyzed. Differences in the catchability of bycatch such as blue sharks and white marlins across attractor color treatments were more conspicuous at high lunar illumination levels (i.e. full moon periods), when white attractors rendered the lowest catch of these taxa. In contrast, the catchability of target species such as swordfish, yellowfin tuna and albacore showed greater differences between treatments at low illumination levels (i.e. new moon periods). The observed differences in the performance of the three light attractor colors across the lunar cycle might provide an opportunity to mitigate bycatch incidence in longline fisheries. Yet, further research is required to fully understand the combined effects of light lures and lunar illumination on the behavioral responses of pelagic species.ElsevierIC-OnlineAfonso, André S.Mourato, BrunoHazin, HumbertoHazin, Fábio H.V.2021-08-03T13:29:58Z20212021-01-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.8/5994engAndré S. Afonso, Bruno Mourato, Humberto Hazin, Fábio H.V. Hazin, The effect of light attractor color in pelagic longline fisheries, Fisheries Research, Volume 235, 2021, 105822, ISSN 0165-7836, https://doi.org/10.1016/j.fishres.2020.105822.0165-783610.1016/j.fishres.2020.105822metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-01-17T15:52:09Zoai:iconline.ipleiria.pt:10400.8/5994Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T01:49:20.729803Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv The effect of light attractor color in pelagic longline fisheries
title The effect of light attractor color in pelagic longline fisheries
spellingShingle The effect of light attractor color in pelagic longline fisheries
Afonso, André S.
Bycatch mitigation
Conservation
Fish attractor
Longline selectivity
Tuna fisheries
title_short The effect of light attractor color in pelagic longline fisheries
title_full The effect of light attractor color in pelagic longline fisheries
title_fullStr The effect of light attractor color in pelagic longline fisheries
title_full_unstemmed The effect of light attractor color in pelagic longline fisheries
title_sort The effect of light attractor color in pelagic longline fisheries
author Afonso, André S.
author_facet Afonso, André S.
Mourato, Bruno
Hazin, Humberto
Hazin, Fábio H.V.
author_role author
author2 Mourato, Bruno
Hazin, Humberto
Hazin, Fábio H.V.
author2_role author
author
author
dc.contributor.none.fl_str_mv IC-Online
dc.contributor.author.fl_str_mv Afonso, André S.
Mourato, Bruno
Hazin, Humberto
Hazin, Fábio H.V.
dc.subject.por.fl_str_mv Bycatch mitigation
Conservation
Fish attractor
Longline selectivity
Tuna fisheries
topic Bycatch mitigation
Conservation
Fish attractor
Longline selectivity
Tuna fisheries
description The authors acknowledge funding provided by Financiadora de Estudos e Projetos – FINEP, Coordenaçao ˜ para o Aperfeiçoamento de Pessoal do Ensino Superior – CAPES CIMAR-II, Conselho Nacional de Desenvolvimento Científico e Tecnologico ´ – CNPq (ref. 445810/2015- 7), Fundaçao ˜ para a Ciˆencia e Tecnologia – FCT (ref. UID/ MAR/ 04292/2013), and the Integrated Programme of SR&TD “Smart Valorization of Endogenous Marine Biological Resources Under a Changing Climate” (ref. Centro-01-0145-FEDER-000018), co-funded by Centro 2020 program, Portugal 2020 and European Union through the European Regional Development Fund. The authors are deeply thankful to two anonymous reviewers who helped to improve the overall quality of the manuscript.
publishDate 2021
dc.date.none.fl_str_mv 2021-08-03T13:29:58Z
2021
2021-01-01T00:00:00Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://hdl.handle.net/10400.8/5994
url http://hdl.handle.net/10400.8/5994
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv André S. Afonso, Bruno Mourato, Humberto Hazin, Fábio H.V. Hazin, The effect of light attractor color in pelagic longline fisheries, Fisheries Research, Volume 235, 2021, 105822, ISSN 0165-7836, https://doi.org/10.1016/j.fishres.2020.105822.
0165-7836
10.1016/j.fishres.2020.105822
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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