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Portuguese purse seine fishery spatial and resource overlap with top predators

2019-05Journal article Restricted access
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dc.contributor.authorWise, Laura
dc.contributor.authorGalego, Catarina
dc.contributor.authorKatara, Isidora
dc.contributor.authorMarçalo, Ana
dc.contributor.authorMeirinho, Ana
dc.contributor.authorMonteiro, Silvia S.
dc.contributor.authorOliveira, Nuno
dc.contributor.authorSantos, Jorge
dc.contributor.authorRodrigues, Pedro
dc.contributor.authorAraujo, Helder
dc.contributor.authorVingada, Jose
dc.contributor.authorSilva, Alexandra
dc.date.accessioned2020-07-24T10:52:17Z
dc.date.available2020-07-24T10:52:17Z
dc.date.issued2019-05
dc.description.abstractThe Portuguese purse seine fishery, with average annual catches of 70 000 tonnes, operates mainly in coastal areas and targets small pelagic fish (SPF). Potential competition for resources may occur between the fishery and some species of marine mammals and seabirds, as suggested by observed incidental catches. For those species directly affected by the fishery, the spatial distribution of marine taxa and the fishing fleet are key pieces of information for spatial planning and management. We analysed the spatial and resource overlap between the fishery's distribution and effort, and the distribution and abundance of 6 species of top predators -seabirds (n = 4) and marine mammals (n = 2) between 2010 and 2014. Estimates of annual consumption by top predators and the fishery catch within the distributional range of one of their main prey species (sardine Sardina pilchardus) were also determined. Spatial overlap between all considered species and the fishery was low (<0.221), and only 2 species (common dolphins Delphinus delphis and Cory's shearwaters Calonectris borealis) showed high resource overlap with the fishery (>0.7). Overall, values of consumption of SPF by the top predators were of the same order of magnitude as mean annual purse seine landings for the studied area. Our results can be used for marine spatial planning, including designation of Marine Protected Areas and the development of an ecosystem-based model for the effective management of the Portuguese purse seine fishery that takes into account the consumption of natural predators.
dc.description.sponsorshipproject 'Life+ MarPro - Conservation of marine protected species in mainland Portugal' [NAT/PT/00038]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.3354/meps12656
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttp://hdl.handle.net/10400.1/14342
dc.language.isoeng
dc.peerreviewedyes
dc.publisherInter-Research
dc.relationINTERACÇÕES DA PESCA DE CERCO COM POPULAÇÕES DE PEQUENOS CETÁCEOS NA COSTA PORTUGUESA
dc.relationMARE - Marine and Environmental Sciences Centre
dc.subjectSmall Cetaceans
dc.subjectMarine Mammals
dc.subjectCount Data
dc.subjectNorth-Sea
dc.subjectSeabird
dc.subjectDiet
dc.subjectFood
dc.subjectPatterns
dc.subjectSurface
dc.subjectModels
dc.titlePortuguese purse seine fishery spatial and resource overlap with top predators
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleINTERACÇÕES DA PESCA DE CERCO COM POPULAÇÕES DE PEQUENOS CETÁCEOS NA COSTA PORTUGUESA
oaire.awardTitleMARE - Marine and Environmental Sciences Centre
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/FARH/SFRH%2FBPD%2F64889%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMAR%2F04292%2F2013/PT
oaire.citation.endPage198
oaire.citation.startPage183
oaire.citation.titleMarine Ecology Progress Series
oaire.citation.volume617
oaire.fundingStreamFARH
oaire.fundingStream6817 - DCRRNI ID
person.familyNameMarçalo
person.givenNameAna
person.identifierR-000-JHM
person.identifier.ciencia-id7314-E2C4-78A2
person.identifier.orcid0000-0002-0485-341X
person.identifier.scopus-author-id6505855915
project.funder.identifierhttp://doi.org/10.13039/501100001871
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
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication.latestForDiscovery7a0927c2-77ac-4512-9dae-a34da3f490e9
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