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Depredation in pelagic surface longlines in the Atlantic and Indian Oceans

2018Artigo científico Acesso aberto
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dc.contributor.authorMuñoz-Lechuga, Rubén
dc.contributor.authorCoelho, Rui
dc.date.accessioned2020-12-03T10:23:19Z
dc.date.available2020-12-03T10:23:19Z
dc.date.issued2018
dc.description.abstractDepredation has aroused great interest over the last few decades, mainly due to the expansion of distant fishing, in particular longlines. For this study, captures and depredation records were taken by scientific observers on board Portuguese commercial longline vessels in the Atlantic and Indian Oceans between 2011 and 2016. A total of 1,336 fishing sets were monitored, with a total of 86,183 fish captured, including 1,681 depredation events. The percentage of depredation tended to increase along the time series, except in the last year where a decrease was noted. Significant differences between sizes of swordfish Xiphias gladius damaged by predators were observed in the Indian Ocean but not in the Atlantic. The highest proportions of depredation were observed on tuna and small pelagic fishes in both oceans. For swordfish, the effects of spatial variables were significant on the rate of depredation events. The results provide an overview of the depredation patterns in the Portuguese pelagic longline fishery in the Atlantic and Indian Oceans, which can inform and improve fisheries management and contribute to the development of effective mitigation measures to reduce the impacts of depredation on fisheries.pt_PT
dc.description.sponsorshipFCT IF/00253/2014pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1111/fme.12320pt_PT
dc.identifier.issn0969-997X
dc.identifier.urihttp://hdl.handle.net/10400.1/14866
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherWileypt_PT
dc.relation.publisherversionhttps://onlinelibrary.wiley.com/doi/full/10.1111/fme.12320pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectAtlantic Oceanpt_PT
dc.subjectDepredationpt_PT
dc.subjectIndian Oceanpt_PT
dc.subjectPelagic longline fisheriespt_PT
dc.titleDepredation in pelagic surface longlines in the Atlantic and Indian Oceanspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage440pt_PT
oaire.citation.issue6pt_PT
oaire.citation.startPage429pt_PT
oaire.citation.titleFisheries Management and Ecologypt_PT
oaire.citation.volume25pt_PT
person.familyNameCoelho
person.givenNameRui
person.identifier134638
person.identifier.ciencia-idDC1A-20B7-EAC0
person.identifier.orcid0000-0003-3813-5157
person.identifier.ridC-1163-2008
person.identifier.scopus-author-id56257111100
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isAuthorOfPublication.latestForDiscovery6366aa1b-1301-43a3-b2b0-1280311ac95f

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