Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats

Understanding how the surface dynamics of the ocean influence the spawning and larval ecology of many large pelagic species, in particular tuna species, is a major challenge. For temperate tunas, the selection of geographically restricted spawning grounds is influenced by environmental conditions, b...

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Autores: Díaz-Barroso, Lara, Hernández Carrasco, Ismael, Orfila, Alejandro, Reglero, Patricia, Balbín, Rosa, Hidalgo, M.C., Tintoré, Joaquín, Alemany, Francesc, Alvarez Berastegui, Diego
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/272709
Acceso en línea:http://hdl.handle.net/10261/272709
https://api.elsevier.com/content/abstract/scopus_id/85127493270
Access Level:acceso abierto
Palabra clave:Finite size Lyapunov exponents
Balearic Sea
Early life ecology
Seascape ecology
Mixing activity
Thunnus thynnus
Optimal environmental window
OEW
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spelling Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitatsDíaz-Barroso, LaraHernández Carrasco, IsmaelOrfila, AlejandroReglero, PatriciaBalbín, RosaHidalgo, M.C.Tintoré, JoaquínAlemany, FrancescAlvarez Berastegui, DiegoFinite size Lyapunov exponentsBalearic SeaEarly life ecologySeascape ecologyMixing activityThunnus thynnusOptimal environmental windowOEWUnderstanding how the surface dynamics of the ocean influence the spawning and larval ecology of many large pelagic species, in particular tuna species, is a major challenge. For temperate tunas, the selection of geographically restricted spawning grounds is influenced by environmental conditions, but the influence of surface mixing properties on the early life stages of these species remains poorly understood. Here, based on ichthyoplankton samples collected over 4 yr and satellite-derived finite size Lyapunov exponents (FSLEs), we examined how horizontal mixing activity drives the probability of presence of Atlantic bluefin tuna Thunnus thynnus larvae. We further analyzed the spatial and temporal scales of the FSLE variability at which the relationship between larval presence and mesoscale activity is maximized. We found that moderate mixing activity strongly favors the spatial-temporal distribution of larval habitats, evidencing an optimal environmental window of bluefin tuna spawning and early life development within the meso scale dynamics. During the spawning season, the Balearic Sea presents a unique spatial and temporal hydrodynamic scenario within the Western Mediterranean. These results can be used for developing oceanographic indicators and improving larval abundance indices that are currently used in Atlantic bluefin tuna stock assessments.This study was funded by the BLUE-FIN TUNA project (SOCIB and IEO joint action), the PANDORA project from the EU2020 Program (Grant Agreement No 773713), and MINECO/FEDER Project MOCCA 256RTI2018-093941-B-C31). I.H.C. acknowledges the Vicenç Mut contract funded by the Government of the Balearic Islands and the European Social Fund (ESF) Operational Programme. The multimission altimeter product was produced by Ssalto/Duacs and provided by CMEMS (http://marine.copernicus.eu).Peer reviewedInter ResearchGovern de les Illes BalearsEuropean CommissionMinisterio de Economía y Competitividad (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://hdl.handle.net/10261/272709https://api.elsevier.com/content/abstract/scopus_id/85127493270reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/EC/H2020/773713https://doi.org/10.3354/meps13979Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2727092026-05-22T06:33:51Z
dc.title.none.fl_str_mv Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
title Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
spellingShingle Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
Díaz-Barroso, Lara
Finite size Lyapunov exponents
Balearic Sea
Early life ecology
Seascape ecology
Mixing activity
Thunnus thynnus
Optimal environmental window
OEW
title_short Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
title_full Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
title_fullStr Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
title_full_unstemmed Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
title_sort Singularities of surface mixing activity in the Western Mediterranean influence bluefin tuna larval habitats
dc.creator.none.fl_str_mv Díaz-Barroso, Lara
Hernández Carrasco, Ismael
Orfila, Alejandro
Reglero, Patricia
Balbín, Rosa
Hidalgo, M.C.
Tintoré, Joaquín
Alemany, Francesc
Alvarez Berastegui, Diego
author Díaz-Barroso, Lara
author_facet Díaz-Barroso, Lara
Hernández Carrasco, Ismael
Orfila, Alejandro
Reglero, Patricia
Balbín, Rosa
Hidalgo, M.C.
Tintoré, Joaquín
Alemany, Francesc
Alvarez Berastegui, Diego
author_role author
author2 Hernández Carrasco, Ismael
Orfila, Alejandro
Reglero, Patricia
Balbín, Rosa
Hidalgo, M.C.
Tintoré, Joaquín
Alemany, Francesc
Alvarez Berastegui, Diego
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Govern de les Illes Balears
European Commission
Ministerio de Economía y Competitividad (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Finite size Lyapunov exponents
Balearic Sea
Early life ecology
Seascape ecology
Mixing activity
Thunnus thynnus
Optimal environmental window
OEW
topic Finite size Lyapunov exponents
Balearic Sea
Early life ecology
Seascape ecology
Mixing activity
Thunnus thynnus
Optimal environmental window
OEW
description Understanding how the surface dynamics of the ocean influence the spawning and larval ecology of many large pelagic species, in particular tuna species, is a major challenge. For temperate tunas, the selection of geographically restricted spawning grounds is influenced by environmental conditions, but the influence of surface mixing properties on the early life stages of these species remains poorly understood. Here, based on ichthyoplankton samples collected over 4 yr and satellite-derived finite size Lyapunov exponents (FSLEs), we examined how horizontal mixing activity drives the probability of presence of Atlantic bluefin tuna Thunnus thynnus larvae. We further analyzed the spatial and temporal scales of the FSLE variability at which the relationship between larval presence and mesoscale activity is maximized. We found that moderate mixing activity strongly favors the spatial-temporal distribution of larval habitats, evidencing an optimal environmental window of bluefin tuna spawning and early life development within the meso scale dynamics. During the spawning season, the Balearic Sea presents a unique spatial and temporal hydrodynamic scenario within the Western Mediterranean. These results can be used for developing oceanographic indicators and improving larval abundance indices that are currently used in Atlantic bluefin tuna stock assessments.
publishDate 2022
dc.date.none.fl_str_mv 2022
2022
2022
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/272709
https://api.elsevier.com/content/abstract/scopus_id/85127493270
url http://hdl.handle.net/10261/272709
https://api.elsevier.com/content/abstract/scopus_id/85127493270
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/EC/H2020/773713
https://doi.org/10.3354/meps13979
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Inter Research
publisher.none.fl_str_mv Inter Research
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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