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Population structure of the black seabream Spondyliosoma cantharus along the south-west Portuguese coast inferred from otolith chemistry

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dc.contributor.authorCorreia, A. T.
dc.contributor.authorGomes, P.
dc.contributor.authorGonçalves, J. M. S.
dc.contributor.authorErzini, Karim
dc.contributor.authorHamer, P. A.
dc.date.accessioned2016-12-14T16:22:27Z
dc.date.available2016-12-14T16:22:27Z
dc.date.issued2012
dc.description.abstractThe chemistry of black seabream Spondyliosoma cantharus otoliths from three main fishery grounds (Olhao, Sagres and Sesimbra) located along c. 400 km of the Portuguese south and west coasts was examined. Element:Ca ratios were determined in whole otoliths and otolith cores of young adult specimens of 23 years of age. Using the data from whole otoliths, it was possible to discriminate among S. cantharus from the three fishing grounds with an average accuracy of 91%. Differences among fishing grounds were significant for all element:Ca ratios, and otoliths from Sagres had significantly higher levels of all ratios compared to the other fishing grounds. In contrast, the chemical composition of the otolith core, representative of the larval stage, showed limited variation among the fishing grounds, with an average discrimination accuracy of only 44%, although the Mg:Ca ratio of the otolith cores was also significantly higher for the Sagres samples. The data suggest that larval stages experienced a homogenous environment consistent with an offshore oceanic spawning. Juveniles appeared to display local residency on the inshore fishing grounds, areas probably characterized by greater environmental heterogeneity. Spondyliosoma cantharus population structure is consistent with distinct local population units that share a spawning ground providing recruits to different coastal fishery areas.
dc.identifier.doi10.1111/j.1095-8649.2011.03186.x
dc.identifier.issn0022-1112
dc.identifier.otherAUT: KER00534; JGO02808;
dc.identifier.urihttp://hdl.handle.net/10400.1/8815
dc.language.isoeng
dc.peerreviewedyes
dc.publisherWiley
dc.relation.isbasedonWOS:000299374400011
dc.titlePopulation structure of the black seabream Spondyliosoma cantharus along the south-west Portuguese coast inferred from otolith chemistry
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage443
oaire.citation.issue2
oaire.citation.startPage427
oaire.citation.titleJournal Of Fish Biology
oaire.citation.volume80
person.familyNameGonçalves
person.familyNameErzini
person.givenNameJorge Manuel Santos
person.givenNameKarim
person.identifier356846
person.identifier.ciencia-id1013-ED6A-65EB
person.identifier.ciencia-idD917-7133-341A
person.identifier.orcid0000-0001-7704-8190
person.identifier.orcid0000-0002-1411-0126
person.identifier.ridG-5206-2011
person.identifier.ridM-5216-2013
person.identifier.scopus-author-id7103326116
person.identifier.scopus-author-id7004015948
rcaap.rightsrestrictedAccess
rcaap.typearticle
relation.isAuthorOfPublicationdd7829e9-e294-4297-8fb2-adf83c8623cf
relation.isAuthorOfPublicatione20f0e2d-3085-4c37-9e98-260dc9faddea
relation.isAuthorOfPublication.latestForDiscoverydd7829e9-e294-4297-8fb2-adf83c8623cf

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