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Sustainable harvesting alone cannot prevent decline of the green crab fishery in Portugal

2024-12-09Journal article Restricted access
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dc.contributor.authorMonteiro, João Nuno
dc.contributor.authorRoa-Ureta, Ruben
dc.contributor.authorOvelheiro, Andreia
dc.contributor.authorTeodosio, Maria
dc.contributor.authorLeitão, Francisco
dc.date.accessioned2025-01-04T10:56:54Z
dc.date.available2025-01-04T10:56:54Z
dc.date.issued2024-12-09
dc.description.abstractEstuarine fisheries are of high regional socio-economic importance worldwide, by providing an important livelihood for many families. The Portuguese green crab (Carcinus maenas) fishery was assessed using a socio-economic assessment to understand the importance of the fishery and a stock assessment analysis to determine the exploitation status of the fishery during 1960-2020. Fisher knowledge revealed that crab fishing was a family affair that provided a livelihood for hundreds of families directly targeting crabs, with catches exported to Spain during 1960-1990s, and in later years, crab demand increased as bait for octopus fishing. Despite its socio-economic importance, the fishery was regulated without a scientific basis and economic value of crabs remained similar through time. Annual landings never exceeded sustainable catch rates, but engagement in the crab fishery declined due to low economic value of crabs compared to other fisheries and regulatory hurdles. Consequently, the number of fishermen declined to 20-30 elderly men fishing on the largest estuaries, with the fishery currently on the verge of extinction. Fishers pointed to a reduction in the minimum landing size and enforcement of crab-specific trap regulations as ways to avert fishery decline. Such changes would stimulate recruitment of new crab fishers, while reducing fishing pressure on other estuarine resources through fisheries diversification.eng
dc.description.sponsorshipDL57/2016/CP1361/CT0008; SFRH/BD/06336/2021; 16-01-04-FMP-0005
dc.identifier.doi10.1111/fme.12777
dc.identifier.eissn1365-2400
dc.identifier.issn0969-997X
dc.identifier.urihttp://hdl.handle.net/10400.1/26578
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relationClimate-mediated shifts in marine resources: an eco-socio-economic approach to assess vulnerability of fisheries to Climate Change.
dc.relationCentre for Marine and Environmental Research
dc.relationAlgarve Centre for Marine Sciences
dc.relationAlgarve Centre for Marine Sciences
dc.relation.ispartofFisheries Management and Ecology
dc.rights.uriN/A
dc.subjectCarcinus maenas
dc.subjectEstuarine fishery
dc.subjectExploitation status
dc.subjectFishing domain
dc.subjectSocio-economic assessment
dc.titleSustainable harvesting alone cannot prevent decline of the green crab fishery in Portugaleng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleClimate-mediated shifts in marine resources: an eco-socio-economic approach to assess vulnerability of fisheries to Climate Change.
oaire.awardTitleCentre for Marine and Environmental Research
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardTitleAlgarve Centre for Marine Sciences
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/CEEC IND5ed/2022.04803.CEECIND%2FCP1729%2FCT0006/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0101%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F04326%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F04326%2F2020/PT
oaire.citation.titleFisheries Management and Ecology
oaire.fundingStreamCEEC IND5ed
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMonteiro
person.familyNameRoa-Ureta
person.familyNameOvelheiro
person.familyNameTeodosio
person.familyNameLeitão
person.givenNameJoão Nuno
person.givenNameRuben
person.givenNameAndreia
person.givenNameMaria
person.givenNameFrancisco
person.identifier633647
person.identifier620214
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person.identifier.ciencia-id9516-FB49-B62C
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.ciencia-id3E1C-DBC2-42D5
person.identifier.orcid0000-0003-1328-7592
person.identifier.orcid0000-0002-9620-5224
person.identifier.orcid0000-0002-4528-6300
person.identifier.orcid0000-0002-0939-9885
person.identifier.orcid0000-0003-4983-9782
person.identifier.ridB-5077-2013
person.identifier.ridM-3980-2013
person.identifier.scopus-author-id7003338522
person.identifier.scopus-author-id56196396700
person.identifier.scopus-author-id7003991946
project.funder.identifierhttp://doi.org/10.13039/501100001871
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project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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