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High connectivity of the Crocodile Shark between the Atlantic and Southwest Indian Oceans: highlights for conservation

2015-02Journal article Open access
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dc.contributor.authorda Silva Ferrette, Bruno Lopes
dc.contributor.authorMendonca, Fernando Fernandes
dc.contributor.authorCoelho, Rui
dc.contributor.authorVasconcelos de Oliveira, Paulo Guilherme
dc.contributor.authorVieira Hazin, Fabio Hissa
dc.contributor.authorRomanov, Evgeny V.
dc.contributor.authorOliveira, Claudio
dc.contributor.authorSantos, Miguel Neves
dc.contributor.authorForesti, Fausto
dc.date.accessioned2018-12-07T14:53:02Z
dc.date.available2018-12-07T14:53:02Z
dc.date.issued2015-02
dc.description.abstractAmong the various shark species that are captured as bycatch in commercial fishing operations, the group of pelagic sharks is still one of the least studied and known. Within those, the crocodile shark, Pseudocarcharias kamoharai, a small-sized lamnid shark, is occasionally caught by longline vessels in certain regions of the tropical oceans worldwide. However, the population dynamics of this species, as well as the impact of fishing mortality on its stocks, are still unknown, with the crocodile shark currently one of the least studied of all pelagic sharks. Given this, the present study aimed to assess the population structure of P. kamoharai in several regions of the Atlantic and Indian Oceans using genetic molecular markers. The nucleotide composition of the mitochondrial DNA control region of 255 individuals was analyzed, and 31 haplotypes were found, with an estimated diversity Hd = 0.627, and a nucleotide diversity pi = 0.00167. An analysis of molecular variance (AMOVA) revealed a fixation index phi(ST) = -0.01118, representing an absence of population structure among the sampled regions of the Atlantic Ocean, and between the Atlantic and Indian Oceans. These results show a high degree of gene flow between the studied areas, with a single genetic stock and reduced population variability. In panmictic populations, conservation efforts can be concentrated in more restricted areas, being these representative of the total biodiversity of the species. When necessary, this strategy could be applied to the genetic maintenance of P. kamoharai.
dc.description.sponsorshipFoundation for Research Support of the Sao Paulo State - FAPESP [2011/23787-0, 2010/51903-2]; Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/93936/2013]; Foundation for Research Support of the Sao Paulo State - FAPESP [2011/23787-0, 2010/51903-2]; Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/93936/2013]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1371/journal.pone.0117549
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10400.1/11320
dc.language.isoeng
dc.peerreviewedyes
dc.publisherPublic Library of Science
dc.relationDEVELOPMENT OF SCIENCE-BASED ADVICE FOR THE PROMOTION OF SUSTAINABLE PELAGIC LONGLINE FISHERIES OF HIGHLY MIGRATORY SPECIES IN THE ATLANTIC AND INDIAN OCEANS: BIOLOGY, ECOLOGY,MODELING AND STOCK ASSESSMENT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectGulf-Of-Mexico
dc.subjectMitochondrial-Dna
dc.subjectRhizoprionodon-Lalandii
dc.subjectPopulation-genetics
dc.subjectNorthwest Atlantic
dc.subjectStatistical tests
dc.subjectWestern Atlantic
dc.subjectRhincodon-typus
dc.subjectWhale shark
dc.subjectPhylogeography
dc.titleHigh connectivity of the Crocodile Shark between the Atlantic and Southwest Indian Oceans: highlights for conservation
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleDEVELOPMENT OF SCIENCE-BASED ADVICE FOR THE PROMOTION OF SUSTAINABLE PELAGIC LONGLINE FISHERIES OF HIGHLY MIGRATORY SPECIES IN THE ATLANTIC AND INDIAN OCEANS: BIOLOGY, ECOLOGY,MODELING AND STOCK ASSESSMENT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F93936%2F2013/PT
oaire.citation.issue2
oaire.citation.startPagee0117549
oaire.citation.titlePLoS ONE
oaire.citation.volume10
person.familyNameCoelho
person.givenNameRui
person.identifier134638
person.identifier.ciencia-idDC1A-20B7-EAC0
person.identifier.orcid0000-0003-3813-5157
person.identifier.ridC-1163-2008
person.identifier.scopus-author-id56257111100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccess
rcaap.typearticle
relation.isAuthorOfPublication6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isAuthorOfPublication.latestForDiscovery6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isProjectOfPublication0f238d30-d806-4ac5-b4a4-bad78224bb87
relation.isProjectOfPublication.latestForDiscovery0f238d30-d806-4ac5-b4a4-bad78224bb87

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