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Identifying populations of the blue jack mackerel (Trachurus picturatus) in the Northeast Atlantic by using geometric morphometrics and otolith shape analysis

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dc.contributor.authorVasconcelos, Joana
dc.contributor.authorVieira, Ana Rita
dc.contributor.authorSequeira, Vera
dc.contributor.authorGonzález, José A.
dc.contributor.authorKaufmann, Manfred
dc.contributor.authorGordo, Leonel
dc.date.accessioned2019-06-25T12:24:58Z
dc.date.available2019-06-25T12:24:58Z
dc.date.issued2018
dc.description.abstractThe population structure of the blue jack mackerel (Trachurus picturatus, Osteichthyes, Carangidae), in the northeast Atlantic is still unknown. To identify any distinct population units, three areas were selected: waters off Madeira, Peniche (mainland Portugal), and the Canary Islands. Knowledge of population structure is an aspect of the population dynamics of a species that is essential to effectively assess the existence of stocks and manage fisheries. In this study, geometric morphometrics and otolith shape analysis were successfully applied for population identification. Multivariate analysis of variance (MANOVA) revealed no body shape differences between males and females in each area studied, and therefore the sexes were combined for the analysis. The results of the discriminant analysis showed that a low misclassification occurred among areas; 78.0% of individuals were correctly classified. MANOVA performed on the otolith normalized elliptic Fourier descriptors revealed significant areal differences, but no difference between sexes. An overall classification success of 73.3% in the canonical discriminant analysis was achieved. These results indicate the usefulness of both otolith and body shape analysis for differentiation of blue jack mackerel stocks from the northeast Atlantic and indicate the existence of at least three distinguishable populations of this species.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.7755/FB.116.1.9pt_PT
dc.identifier.issn0090-0656
dc.identifier.urihttp://hdl.handle.net/10451/38848
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.titleIdentifying populations of the blue jack mackerel (Trachurus picturatus) in the Northeast Atlantic by using geometric morphometrics and otolith shape analysispt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage92pt_PT
oaire.citation.issue1pt_PT
oaire.citation.startPage81pt_PT
oaire.citation.titleFishery Bulletinpt_PT
oaire.citation.volume116pt_PT
person.familyNameVasconcelos
person.familyNameVieira
person.familyNameSequeira
person.familyNameGordo
person.givenNameJoana
person.givenNameAna Rita
person.givenNameVera
person.givenNameLeonel
person.identifier934239
person.identifier.ciencia-idEE13-2152-BBFC
person.identifier.ciencia-id5418-2378-F22F
person.identifier.ciencia-id3515-0C30-9186
person.identifier.orcid0000-0003-3880-2554
person.identifier.orcid0000-0002-5640-7999
person.identifier.orcid0000-0001-7173-4982
person.identifier.orcid0000-0002-9144-6061
person.identifier.ridB-1677-2012
person.identifier.ridB-1673-2012
person.identifier.ridB-3604-2012
person.identifier.scopus-author-id55619972800
person.identifier.scopus-author-id26637827200
person.identifier.scopus-author-id24077692000
person.identifier.scopus-author-id6602175866
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication81373b6f-cc32-4f9a-87a1-27512d7867a4
relation.isAuthorOfPublicationea21b366-fb02-44de-9d03-f358913c9ff0
relation.isAuthorOfPublicationd02f69b6-31c4-4391-92fb-9882a6e96e5e
relation.isAuthorOfPublicationb34d7764-5cf9-4901-914b-26954d5059ae
relation.isAuthorOfPublication.latestForDiscoveryb34d7764-5cf9-4901-914b-26954d5059ae

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