Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean

17 pages, 9 figures, 2 tables

Detalhes bibliográficos
Autores: Laiz-Carrión, Raúl, Borrego-Santos, Ricardo, Quintanilla, José María, Quezada-Romegialli, Claudio, Malca, Estrella, Swalethorp, Rasmus, Abascal, Francisco Javier, Pennino, Maria Grazia, Vargas-Yáñez, Manuel, Johnstone, Carolina, Godoy-Bermúdez, Miguel Ángel, Die, David, Landry, Michael R.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2026
País:España
Recursos:Consejo Superior de Investigaciones Científicas (CSIC)
Repositório:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:dnet:digitalcsic_::81ac2ecaa0d3757d5aed517e9e3e024f
Acesso em linha:http://hdl.handle.net/10261/431152
Access Level:Acceso aberto
Palavra-chave:Trophic ecology
Larval growth
Southern bluefin
Albacore
Skipjack
Tuna larvae
Stable isotope
Trophic position
Isotopic niche
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
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spelling Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian oceanLaiz-Carrión, RaúlBorrego-Santos, RicardoQuintanilla, José MaríaQuezada-Romegialli, ClaudioMalca, EstrellaSwalethorp, RasmusAbascal, Francisco JavierPennino, Maria GraziaVargas-Yáñez, ManuelJohnstone, CarolinaGodoy-Bermúdez, Miguel ÁngelDie, DavidLandry, Michael R.Trophic ecologyLarval growthSouthern bluefinAlbacoreSkipjackTuna larvaeStable isotopeTrophic positionIsotopic nicheConserve and sustainably use the oceans, seas and marine resources for sustainable development17 pages, 9 figures, 2 tablesWe examined trophic ecology and its influence on larval growth variability for three scombrids, southern bluefin (Thunnus maccoyii, SBT), albacore (T. alalunga, ALB), and skipjack tunas (Katsuwonus pelamis, SKJ), that share a common spawning ground in the eastern Indian Ocean. We combined otolith-based ageing with bulk nitrogen and carbon stable isotope analysis (SIA) of individual larva. Significant interspecific differences in δ15N and δ13C indicate adaptive resource partitioning that allows these tunas to coexist during early ontogeny. Trophic position and isotopic niche were estimated with both frequentist and Bayesian approaches, enabling the evaluation of ontogenetic isotope shifts, niche overlap, and resource use in relation to growth. ALB grew fastest, had the highest trophic position, and the broadest isotopic niche. Optimally growing tuna larvae occupied the narrowest trophic niche and had lower trophic positions for all three species, supporting the hypothesis that strong trophic specialization supports better growth performance and that feeding on more efficient shorter food chains (e.g., microbial loop via appendicularians) can enhance larval fitness. Using lower C:N ratio as a proxy of larval condition found in optimal growing groups supports the broader hypothesis that growth potential is closely tied to energy allocation strategies during early ontogeny. A detailed understanding of how larval trophodynamics, niche breadth, and resource partitioning interact with growth and survival during these vulnerable stages is essential for ecosystem-based management, particularly in systems where growth rate modulates predation risk and competitive fitnessThis study was funded by: the INDITUN project PID2021/122862NB/100 UE-FEDER (R.L.-C.) and grant PRX23/00189 (R.L.-C.) supported by the Ministry of Science, Innovation and Universities (MICINN) of the Spanish government; U. S. National Science Foundation awards BLOOFINZ-IO OCE-1851558 (M.R.L.); OCE-1851558 (D.D. and E.M.); and contributes to the Second International Indian Ocean Expedition (IIOE-2 endorsed project EP046)This work contributes to the Institut de Ciències del Mar "Severo Ochoa Centre of Excellence" accreditation CEX2024-001494-S funded by AEI 10.13039/501100011033 of the Spanish Ministry of Science and InnovationPeer reviewedElsevierAgencia Estatal de Investigación (España)Ministerio de Ciencia, Innovación y Universidades (España)European CommissionNational Science Foundation (US)202620262026info:eu-repo/semantics/articlePublisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/431152reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122862NB-I00https://doi.org/10.1016/j.dsr2.2025.105585Síinfo:eu-repo/semantics/openAccessoai:dnet:digitalcsic_::81ac2ecaa0d3757d5aed517e9e3e024f2026-05-22T06:33:51Z
dc.title.none.fl_str_mv Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
title Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
spellingShingle Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
Laiz-Carrión, Raúl
Trophic ecology
Larval growth
Southern bluefin
Albacore
Skipjack
Tuna larvae
Stable isotope
Trophic position
Isotopic niche
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
title_short Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
title_full Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
title_fullStr Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
title_full_unstemmed Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
title_sort Trophic specialization enhances growth performance in larvae of southern bluefin, albacore, and skipjack tunas from the eastern Indian ocean
dc.creator.none.fl_str_mv Laiz-Carrión, Raúl
Borrego-Santos, Ricardo
Quintanilla, José María
Quezada-Romegialli, Claudio
Malca, Estrella
Swalethorp, Rasmus
Abascal, Francisco Javier
Pennino, Maria Grazia
Vargas-Yáñez, Manuel
Johnstone, Carolina
Godoy-Bermúdez, Miguel Ángel
Die, David
Landry, Michael R.
author Laiz-Carrión, Raúl
author_facet Laiz-Carrión, Raúl
Borrego-Santos, Ricardo
Quintanilla, José María
Quezada-Romegialli, Claudio
Malca, Estrella
Swalethorp, Rasmus
Abascal, Francisco Javier
Pennino, Maria Grazia
Vargas-Yáñez, Manuel
Johnstone, Carolina
Godoy-Bermúdez, Miguel Ángel
Die, David
Landry, Michael R.
author_role author
author2 Borrego-Santos, Ricardo
Quintanilla, José María
Quezada-Romegialli, Claudio
Malca, Estrella
Swalethorp, Rasmus
Abascal, Francisco Javier
Pennino, Maria Grazia
Vargas-Yáñez, Manuel
Johnstone, Carolina
Godoy-Bermúdez, Miguel Ángel
Die, David
Landry, Michael R.
author2_role author
author
author
author
author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Agencia Estatal de Investigación (España)
Ministerio de Ciencia, Innovación y Universidades (España)
European Commission
National Science Foundation (US)
dc.subject.none.fl_str_mv Trophic ecology
Larval growth
Southern bluefin
Albacore
Skipjack
Tuna larvae
Stable isotope
Trophic position
Isotopic niche
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
topic Trophic ecology
Larval growth
Southern bluefin
Albacore
Skipjack
Tuna larvae
Stable isotope
Trophic position
Isotopic niche
Conserve and sustainably use the oceans, seas and marine resources for sustainable development
description 17 pages, 9 figures, 2 tables
publishDate 2026
dc.date.none.fl_str_mv 2026
2026
2026
dc.type.none.fl_str_mv info:eu-repo/semantics/article
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/431152
url http://hdl.handle.net/10261/431152
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv #PLACEHOLDER_PARENT_METADATA_VALUE#
info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-122862NB-I00
https://doi.org/10.1016/j.dsr2.2025.105585
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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