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Thinking of fish population discrimination: population average phenotype vs. population phenotypes

2021Journal article Open access
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dc.contributor.authorVasconcelos, Joana
dc.contributor.authorJurado-Ruzafa, Alba
dc.contributor.authorOtero-Ferrer, José Luis
dc.contributor.authorLombarte, Antoni
dc.contributor.authorRiera, Rodrigo
dc.contributor.authorTuset, Víctor M.
dc.date.accessioned2022-06-20T09:12:59Z
dc.date.available2022-06-20T09:12:59Z
dc.date.issued2021
dc.description.abstractThe genetic polymorphism and phenotypic variation are key in ecology and evolution. The morphological variability of the contour of fish otoliths has been extensively used for the delimitation of stocks. These studies are conventionally based on average phenotype using elliptic Fourier analysis and lineal discriminant analysis as classifier. Considering new analytical options, such as the wavelet transform and non-parametric algorithms, we here analyzed the otolith shape of Trachurus picturatus (blue jack mackerel) from mainland Portugal, Madeira, and the Canaries. We explore the phenotypic variation throughout a latitudinal gradient, establish a hypothesis to explain this variability based on the reaction norms, and determine how the use of average phenotype and/or morphotypes influences in the delimitation of stocks. Four morphotypes were identified in all regions, with an increase of phenotypes in warmer waters. The findings demonstrated that stocks were clearly separated with classification rates over 90%. The use of morphotypes, revealed seasonal variations in their frequencies and per region. The presence of shared phenotypes in different proportions among fishing grounds may open new management approaches in migratory species. These results show the importance of the phenotypic diversity in fisheries management.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVasconcelos, J., Jurado-Ruzafa, A., Otero-Ferrer, J. L., Lombarte, A., Riera, R., & Tuset, V. M. (2021). Thinking of fish population discrimination: population average phenotype vs. population phenotypes. Frontiers in Marine Science, 1489. https://doi.org/10.3389/fmars.2021.740296pt_PT
dc.identifier.doi10.3389/fmars.2021.740296pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.13/4335
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherFrontiers Mediapt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectOtolith contour analysispt_PT
dc.subjectWaveletspt_PT
dc.subjectMedium pelagic fishpt_PT
dc.subjectStockspt_PT
dc.subjectNorth and Central East Atlanticpt_PT
dc.subject.pt_PT
dc.subjectFaculdade de Ciências da Vidapt_PT
dc.titleThinking of fish population discrimination: population average phenotype vs. population phenotypespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.titleFrontiers in Marine Sciencept_PT
oaire.citation.volume8pt_PT
person.familyNameVasconcelos
person.familyNameRIERA
person.givenNameJoana
person.givenNameRODRIGO
person.identifier934239
person.identifier131658
person.identifier.ciencia-idEE13-2152-BBFC
person.identifier.ciencia-idCC16-7DB1-47E7
person.identifier.orcid0000-0003-3880-2554
person.identifier.orcid0000-0003-1264-1625
person.identifier.ridI-4260-2013
person.identifier.scopus-author-id55619972800
person.identifier.scopus-author-id7003416980
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6f45f776-a559-4b82-8170-6d5d362a4247
relation.isAuthorOfPublication7a38f34f-230e-40e8-9160-7b4f5888caa0
relation.isAuthorOfPublication.latestForDiscovery7a38f34f-230e-40e8-9160-7b4f5888caa0

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