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Mitonuclear genetics reveals a novel perspective on the stock structure and fishery management of skipjack tuna (Katsuwonus pelamis) in the Atlantic Ocean

2025-04-11Journal article Open access
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datacite.subject.fosCiências Naturais::Ciências Biológicas
datacite.subject.sdg14:Proteger a Vida Marinha
dc.contributor.authorQueiroz-Brito, Maria Clara G.
dc.contributor.authorMendonça, Fernando F.
dc.contributor.authorRobalo, Joana
dc.contributor.authorArocha, Freddy
dc.contributor.authorDiaha, N’Guessan Constance
dc.contributor.authorAmandé, Monin Justin
dc.contributor.authorSow, Fambaye Ngom
dc.contributor.authorAngueko, Davy
dc.contributor.authorTravassos, Paulo
dc.contributor.authorTorres, Rodrigo A.
dc.date.accessioned2025-07-17T14:09:05Z
dc.date.available2025-07-17T14:09:05Z
dc.date.issued2025-04-11
dc.description.abstractThe skipjack tuna, Katsuwonus pelamis is the worldwide most fished and economically significant tuna species. In the Atlantic Ocean, the management strategy of the International Commission for the Conservation of Atlantic Tunas (ICCAT) includes two stocks: (a) eastern (SKJ-E) and (b) western (SKJ-W) stocks. However, the genetic cohesiveness between these stocks remains poorly understood. Here, we provide this information through mitochondrial [control region (CR)] and nuclear (intron S7) data. In both markers, high genetic diversity and no contraction signals in effective population sizes were found, supporting the species conservation status as ‘Least Concern’ by the IUCN and the results of the latest ICCAT assessment of the two stocks. In general, no well-defined genetic-geographic structure was detected, which may be explained by the specie life history strategies, such as large population effective sizes and migratory behavior, with a broad geographical distribution, that reduce the isolation, inbreeding, and genetic drift effects. However, pairwise FST values within and between the Eastern and Western Atlantic suggest some weak to moderate genetic differentiation. These results involved mainly the Eastern Temperate Zone, represented herein by the Azores archipelago. It is important to highlight that higher differentiation levels were found between sites from different stocks. In addition, the CR data revealed a weak but significant genetic differentiation between the eastern and western stocks (FST = 0.0006). These results can be used to improve and support the ICCAT management strategies of skipjack tuna stocks, highlighting the need for a reevaluation and possible alignment between Eastern and Western Atlantic management actions. Similar content being viewed by otherspor
dc.description.sponsorshipFundação para a Ciência e Tecnologia - FCT
dc.identifier.citationQueiroz-Brito, M. C. G., Torres, R. A., Mendonça, F. F., Robalo, J. I., Arocha, F., Diaha, N. C., Amandé, M. J., Sow, F. N., Angueko, D., & Travassos, P. (2025). Mitonuclear genetics reveals a novel perspective on the stock structure and fishery management of skipjack tuna (Katsuwonus pelamis) in the Atlantic Ocean. Reviews in Fish Biology and Fisheries, 35(2), 929–942. https://doi.org/10.1007/s11160-025-09941-y
dc.identifier.doi10.1007/s11160-025-09941-y
dc.identifier.issn0960-3166
dc.identifier.issn1573-5184
dc.identifier.urihttp://hdl.handle.net/10400.12/13562
dc.language.isoeng
dc.peerreviewedyes
dc.publisherSpringer Science and Business Media LLC
dc.relationUIDB/04292/2020
dc.relationUIDP/04292/2020
dc.relation.hasversionhttps://link.springer.com/article/10.1007/s11160-025-09941-y
dc.relation.ispartofReviews in Fish Biology and Fisheries
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectConservation
dc.subjectFishery stocks
dc.subjectGenetic cohesiveness
dc.subjectPopulation structure
dc.subjectSkipjack tuna
dc.titleMitonuclear genetics reveals a novel perspective on the stock structure and fishery management of skipjack tuna (Katsuwonus pelamis) in the Atlantic Oceaneng
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage14
oaire.citation.issue2
oaire.citation.startPage1
oaire.citation.titleReviews in Fish Biology and Fisheries
oaire.citation.volume35
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameRobalo
person.givenNameJoana
person.identifier.ciencia-idD211-4FAD-537A
person.identifier.orcid0000-0002-7470-0574
person.identifier.ridN-9960-2014
person.identifier.scopus-author-id6506759340
relation.isAuthorOfPublicationd63f1a4f-73dd-4ef4-9b2f-9a3ba322097c
relation.isAuthorOfPublication.latestForDiscoveryd63f1a4f-73dd-4ef4-9b2f-9a3ba322097c

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