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Reduced global genetic differentiation of exploited marine fish species

2021-04Journal article Open access
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dc.contributor.authorGandra, Miguel
dc.contributor.authorAssis, Jorge
dc.contributor.authorRamos Martins, Manuel
dc.contributor.authorAbecasis, David
dc.date.accessioned2021-06-21T15:44:54Z
dc.date.available2021-06-21T15:44:54Z
dc.date.issued2021-04
dc.description.abstractKnowledge on genetic structure is key to understand species connectivity patterns and to define the spatiotemporal scales over which conservation management plans should be designed and implemented. The distribution of genetic diversity (within and among populations) greatly influences species ability to cope and adapt to environmental changes, ultimately determining their long-term resilience to ecological disturbances. Yet, the drivers shaping connectivity and structure in marine fish populations remain elusive, as are the effects of fishing activities on genetic subdivision. To investigate these questions, we conducted a meta-analysis and compiled genetic differentiation data (FST/ΦST estimates) for more than 170 fish species from over 200 published studies globally distributed. We modeled the effects of multiple life-history traits, distance metrics, and methodological factors on observed population differentiation indices and specifically tested whether any signal arising from different exposure to fishing exploitation could be detected. Although the myriad of variables shaping genetic structure makes it challenging to isolate the influence of single drivers, results showed a significant correlation between commercial importance and genetic structure, with widespread lower population differentiation in commercially exploited species. Moreover, models indicate that variables commonly used as proxy for connectivity, such as larval pelagic duration, might be insufficient, and suggest that deep-sea species may disperse further. Overall, these results contribute to the growing body of knowledge on marine genetic connectivity and suggest a potential effect of commercial fisheries on the homogenization of genetic diversity, highlighting the need for additional research focused on dispersal ecology to ensure long-term sustainability of exploited marine species.pt_PT
dc.description.sponsorshipMAR-01.04.02-FEAMP-0015, UIDB/04326/2020, PTDC/BIA-CBI/6515/2020, DL57/2016/CP1361/CT0035, DL 57/2016/CP1361/CT0036pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1093/molbev/msaa299pt_PT
dc.identifier.eissn1537-1719
dc.identifier.urihttp://hdl.handle.net/10400.1/16329
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherOxford university presspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectPhylogeographypt_PT
dc.subjectConnectivitypt_PT
dc.subjectDispersalpt_PT
dc.subjectFisheriespt_PT
dc.subjectF-STpt_PT
dc.titleReduced global genetic differentiation of exploited marine fish speciespt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage1412pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage1402pt_PT
oaire.citation.titleMolecular Biology and Evolutionpt_PT
oaire.citation.volume38pt_PT
person.familyNameGandra
person.familyNameAssis
person.familyNameRamos Martins
person.familyNameAbecasis
person.givenNameMiguel
person.givenNameJorge
person.givenNameManuel
person.givenNameDavid
person.identifier298405
person.identifier.ciencia-id4F1A-6372-FA55
person.identifier.ciencia-id5C1D-05B6-29F7
person.identifier.ciencia-id7E1E-B2F7-B966
person.identifier.orcid0000-0003-1506-5141
person.identifier.orcid0000-0002-6624-4820
person.identifier.orcid0000-0001-6477-2518
person.identifier.orcid0000-0002-9802-8153
person.identifier.ridG-9688-2012
person.identifier.ridB-2871-2012
person.identifier.scopus-author-id53463298700
person.identifier.scopus-author-id23017767300
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
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relation.isAuthorOfPublication.latestForDiscoveryef3e9a91-cff1-419d-af31-4bc2800897dd

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