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A standardized method for age estimation of little tunny (Euthynnus alletteratus) using dorsal fin spines

2024-11Journal article Restricted access
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dc.contributor.authorMuñoz-Lechuga, Rubén
dc.contributor.authorSilva, G. da
dc.contributor.authorMacias, D.
dc.contributor.authorHajjej, G.
dc.contributor.authorMassa-Gallucci, A.
dc.contributor.authorGonçalves, Jorge Manuel Santos
dc.contributor.authorLino, P. G.
dc.date.accessioned2024-11-13T10:00:12Z
dc.date.available2024-11-13T10:00:12Z
dc.date.issued2024-11
dc.description.abstractAge and growth of little tunny (Euthynnus alletteratus) were assessed by examination of annual growth increments in cross-section of first dorsal spines from 207 fish (85-1030 mm Straight Fork Length, SFL) sampled between 2017 and 2021 from the northeastern Atlantic and Mediterranean Sea. Some analysis and recommendations are provided for using the first dorsal fin spine for age estimation of little tunny. The comparative analysis of the sectioning location, with transverse sections collected at 0.5, 1.0, and 1.5 times the width of the condyle base measured from the base of the spine, showed that the 1.0 cross-section distance proved to be the most reliable option. Fish ages ranged 0-10 years old and the growth parameters estimates based on standard von Bertalanffy growth function were (for sexes combined): L infinity (asymptotic length) = 99.77 cm; k (growth coefficient) = 0.445 year- 1; and t0 (age at zero length) =- 0.072 year- 1. In order to ensure comparable results, it is crucial to implement a reproducible protocol for future studies on the age and growth of little tunny.eng
dc.identifier.doi10.1016/j.ecss.2024.108904
dc.identifier.issn0272-7714
dc.identifier.urihttp://hdl.handle.net/10400.1/26258
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relation.ispartofEstuarine, Coastal and Shelf Science
dc.rights.uriN/A
dc.subjectAgeing
dc.subjectCondyle
dc.subjectFisheries
dc.subjectGrowth modelling
dc.subjectScombridae
dc.subjectSmall tunas
dc.titleA standardized method for age estimation of little tunny (Euthynnus alletteratus) using dorsal fin spineseng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage108904
oaire.citation.titleEstuarine, Coastal and Shelf Science
oaire.citation.volume307
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameMuñoz-Lechuga
person.familyNameGonçalves
person.givenNameRubén
person.givenNameJorge Manuel Santos
person.identifier356846
person.identifier.ciencia-id1013-ED6A-65EB
person.identifier.orcid0000-0001-8148-872X
person.identifier.orcid0000-0001-7704-8190
person.identifier.ridG-5206-2011
person.identifier.scopus-author-id7103326116
relation.isAuthorOfPublicationdacfde7c-d506-47b7-bccf-9a94608468ed
relation.isAuthorOfPublicationdd7829e9-e294-4297-8fb2-adf83c8623cf
relation.isAuthorOfPublication.latestForDiscoverydacfde7c-d506-47b7-bccf-9a94608468ed

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