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Age and growth of the blue shark (Prionace glauca) in the Indian Ocean

2019-03Journal article Open access
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dc.contributor.authorAndrade, Inês
dc.contributor.authorRosa, D.
dc.contributor.authorMuñoz-Lechuga, R.
dc.contributor.authorCoelho, Rui
dc.date.accessioned2020-07-22T19:01:41Z
dc.date.available2020-07-22T19:01:41Z
dc.date.issued2019-03
dc.description.abstractSince there is still a lack of biological information regarding Prionace glauca in the Indian Ocean, specifically in terms of age estimation and growth modelling, the age and growth of this species was studied by analysing vertebral samples. All samples were collected from specimens captured by pelagic longliners between March 2013 and September 2016, with sizes ranging from 82 to 301 cm fork length (LF). Two growth models were fitted to the age data, a three-parameter von Bertalanffy growth function (VBGF) re-parameterized to calculate L0 (size at birth) and a two-parameter VBGF with a fixed L0. The latter was considered the most adequate to describe the growth of the species, with the estimated parameters being L∞ = 283.8 cm LF, k  = 0.13 year−1 for males and L∞ = 290.6 cm LF, k = 0.12 year−1 for females. These results suggest that females have a slower growth than males. The maximum age estimated was 25 years, representing the oldest attributed age to this species so far. Further work is needed regarding P. glauca in the Indian Ocean, but this study adds important life-history information that can contribute for the management and conservation of the species.pt_PT
dc.description.sponsorshipIF/00253/2014) from the Portuguese Foundation for Science and Technologypt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.doi10.1016/j.fishres.2018.11.019pt_PT
dc.identifier.urihttp://hdl.handle.net/10400.1/14116
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relation.publisherversionhttps://doi.org/10.1016/j.fishres.2018.11.019pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/pt_PT
dc.subjectBycatchpt_PT
dc.subjectElasmobranchspt_PT
dc.subjectFisheriespt_PT
dc.subjectGrowth modellingpt_PT
dc.subjectPelagic longlinept_PT
dc.titleAge and growth of the blue shark (Prionace glauca) in the Indian Oceanpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage246pt_PT
oaire.citation.startPage238pt_PT
oaire.citation.titleFisheries Researchpt_PT
oaire.citation.volume211pt_PT
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
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT
relation.isAuthorOfPublication6366aa1b-1301-43a3-b2b0-1280311ac95f
relation.isAuthorOfPublication.latestForDiscovery6366aa1b-1301-43a3-b2b0-1280311ac95f

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