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Interactions between air-breathing marine megafauna and artisanal fisheries in Southern Iberian Atlantic waters: results from an interview survey to fishers

2022Journal article Restricted access
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dc.contributor.authorAlexandre, Sofia
dc.contributor.authorMarçalo, Ana
dc.contributor.authorMarques, Tiago A.
dc.contributor.authorPires, Alexandra
dc.contributor.authorRangel, Mafalda
dc.contributor.authorRessurreição, Adriana
dc.contributor.authorMonteiro, Pedro
dc.contributor.authorErzini, Karim
dc.contributor.authorGonçalves, Jorge Manuel Santos
dc.date.accessioned2022-09-29T13:39:03Z
dc.date.available2022-09-29T13:39:03Z
dc.date.issued2022
dc.description.abstractThe coastal waters off Western Iberia are an important fishing ground and a marine megafauna foraging area. Overlap between fishery target species and the diet of several air breathing marine megafauna species can lead to negative interactions and consequently conservation and economic issues. This work aimed to assess marine megafauna (cetaceans, marine birds, and marine turtles) – fishery interactions through face-to-face interviews to fishers of the local and coastal artisanal fisheries fleets in the landing sites of the Portuguese mainland Southern coast (Algarve). The main goal was to identify and evaluate problematic interactions known to cause bycatch or economic loss through depredation. We found that bycatch is a concern for all marine megafauna groups, but depredation problems are mostly associated with cetaceans. Of the sampled artisanal fisheries (longlines, pots and traps, bottom set-nets, and purse seine), the fishing gears of most concern were purse seine and coastal bottom set-nets. Purse seine showed problems associated with important bycatch numbers, especially of common dolphins, Delphinus delphis, while bottom set-nets have considerable bycatch of all animal groups and depredation was highly associated with bottlenose dolphins, Tursiops truncatus. Bycatch and depredation were found to be species, gear, area, and vessel size dependent. Economic loss caused by depredation led to catch and gear damage and was widely reported by bottom set-net fishers, ranging from 7% to 21% of their revenue. Higher losses were reported for local vessels in leeward (eastern) Algarve area. This study showed that the active participation of fishers provides improved localized knowledge on interactions between local and coastal fisheries and marine megafauna, allowing for the definition of specific management and mitigation strategies.pt_PT
dc.description.sponsorshipMAR-01.03.01-FEAMP-0020
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.fishres.2022.106430pt_PT
dc.identifier.issn0165-7836
dc.identifier.urihttp://hdl.handle.net/10400.1/18319
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationRecreational boat angling and spearfishing in southern continental Portugal: a scientific basis for sustainable and integrated management
dc.relationCentre of Statistics and its Applications
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relationCentre for Marine and Environmental Research
dc.subjectBycatchpt_PT
dc.subjectDepredationpt_PT
dc.subjectFisher participationpt_PT
dc.subjectInterview surveypt_PT
dc.subjectMarine megafauna-fishery interactionspt_PT
dc.titleInteractions between air-breathing marine megafauna and artisanal fisheries in Southern Iberian Atlantic waters: results from an interview survey to fisherspt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRecreational boat angling and spearfishing in southern continental Portugal: a scientific basis for sustainable and integrated management
oaire.awardTitleCentre of Statistics and its Applications
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F116307%2F2016/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F00006%2F2020/PT
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oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.citation.startPage106430pt_PT
oaire.citation.titleFisheries Researchpt_PT
oaire.citation.volume254pt_PT
oaire.fundingStream6817 - DCRRNI ID
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person.familyNameMarçalo
person.familyNameRangel
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person.familyNameGonçalves
person.givenNameAna
person.givenNameMafalda
person.givenNameAdriana
person.givenNamePedro
person.givenNameKarim
person.givenNameJorge Manuel Santos
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project.funder.nameFundação para a Ciência e a Tecnologia
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project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
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