Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages

Bluefin tunas across the world migrate long distances to spawn in particularly warm and oligotrophic areas constrained by oceanographic fronts. The low abundance of predators in these areas increases survival chances of their early life stages, but its importance for choice of spawning habitat is un...

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Detalles Bibliográficos
Autores: Ottmann, Daniel, Fiksen, Øyvind, Martín, Melissa, Alemany, Francisco, Prieto, Laura, Alvarez Berastegui, Diego, Reglero, Patricia
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/317454
Acceso en línea:http://hdl.handle.net/10261/317454
Access Level:acceso abierto
Palabra clave:Centro Oceanográfico de Baleares
Medio Marino
fish
limnology
predation
spawning
oceanography
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spelling Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stagesOttmann, DanielFiksen, ØyvindMartín, MelissaAlemany, FranciscoPrieto, LauraAlvarez Berastegui, DiegoReglero, PatriciaCentro Oceanográfico de BalearesMedio MarinofishlimnologypredationspawningoceanographyBluefin tunas across the world migrate long distances to spawn in particularly warm and oligotrophic areas constrained by oceanographic fronts. The low abundance of predators in these areas increases survival chances of their early life stages, but its importance for choice of spawning habitat is unknown. Here, we use estimated clearance rates and data on spatial distributions of Atlantic bluefin tuna larvae Thunnus thynnus and metaephyrae of the jellyfish Pelagia noctiluca to quantify predation at a major spawning ground in the Mediterranean Sea. We found that high densities of P. noctiluca can rapidly deplete tuna eggs and preflexion larvae, but their patchy distribution and low spatial and temporal overlap results in overall low predation. The specific distribution of the spawning sites suggests that bluefin tunas may use local oceanography as cues to spawn outside areas with high predator densities.SI202320232021info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/317454reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)InglésCentro Oceanográfico de Balearesinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3174542026-05-22T06:33:51Z
dc.title.none.fl_str_mv Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
title Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
spellingShingle Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
Ottmann, Daniel
Centro Oceanográfico de Baleares
Medio Marino
fish
limnology
predation
spawning
oceanography
title_short Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
title_full Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
title_fullStr Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
title_full_unstemmed Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
title_sort Spawning site distribution of a bluefin tuna reduces jellyfish predation on early life stages
dc.creator.none.fl_str_mv Ottmann, Daniel
Fiksen, Øyvind
Martín, Melissa
Alemany, Francisco
Prieto, Laura
Alvarez Berastegui, Diego
Reglero, Patricia
author Ottmann, Daniel
author_facet Ottmann, Daniel
Fiksen, Øyvind
Martín, Melissa
Alemany, Francisco
Prieto, Laura
Alvarez Berastegui, Diego
Reglero, Patricia
author_role author
author2 Fiksen, Øyvind
Martín, Melissa
Alemany, Francisco
Prieto, Laura
Alvarez Berastegui, Diego
Reglero, Patricia
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Centro Oceanográfico de Baleares
Medio Marino
fish
limnology
predation
spawning
oceanography
topic Centro Oceanográfico de Baleares
Medio Marino
fish
limnology
predation
spawning
oceanography
description Bluefin tunas across the world migrate long distances to spawn in particularly warm and oligotrophic areas constrained by oceanographic fronts. The low abundance of predators in these areas increases survival chances of their early life stages, but its importance for choice of spawning habitat is unknown. Here, we use estimated clearance rates and data on spatial distributions of Atlantic bluefin tuna larvae Thunnus thynnus and metaephyrae of the jellyfish Pelagia noctiluca to quantify predation at a major spawning ground in the Mediterranean Sea. We found that high densities of P. noctiluca can rapidly deplete tuna eggs and preflexion larvae, but their patchy distribution and low spatial and temporal overlap results in overall low predation. The specific distribution of the spawning sites suggests that bluefin tunas may use local oceanography as cues to spawn outside areas with high predator densities.
publishDate 2021
dc.date.none.fl_str_mv 2021
2023
2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/317454
url http://hdl.handle.net/10261/317454
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Centro Oceanográfico de Baleares
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
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
_version_ 1869417857134100480
score 15,811543

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