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Born small, die young: Intrinsic, size-selective mortality in marine larval fish

2015Journal article Open access
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dc.contributor.authorGarrido, Susana
dc.contributor.authorBen-Hamadou, Radhouan
dc.contributor.authorSantos, A. Miguel P.
dc.contributor.authorFerreira, S.
dc.contributor.authorM A Teodosio
dc.contributor.authorCotano, U.
dc.contributor.authorIrigoien, X.
dc.contributor.authorPeck, M. A.
dc.contributor.authorSaiz, E.
dc.contributor.authorRe, P.
dc.date.accessioned2018-12-07T14:53:17Z
dc.date.available2018-12-07T14:53:17Z
dc.date.issued2015
dc.description.abstractMortality during the early stages is a major cause of the natural variations in the size and recruitment strength of marine fish populations. In this study, the relation between the size-at-hatch and early survival was assessed using laboratory experiments and on field-caught larvae of the European sardine (Sardina pilchardus). Larval size-at-hatch was not related to the egg size but was significantly, positively related to the diameter of the otolith-at-hatch. Otolith diameter-athatch was also significantly correlated with survival-at-age in fed and unfed larvae in the laboratory. For sardine larvae collected in the Bay of Biscay during the spring of 2008, otolith radius-at-hatch was also significantly related to viability. Larval mortality has frequently been related to adverse environmental conditions and intrinsic factors affecting feeding ability and vulnerability to predators. Our study offers evidence indicating that a significant portion of fish mortality occurs during the endogenous (yolk) and mixed (yolk /prey) feeding period in the absence of predators, revealing that marine fish with high fecundity, such as small pelagics, can spawn a relatively large amount of eggs resulting in small larvae with no chances to survive. Our findings help to better understand the mass mortalities occurring at early stages of marine fish.
dc.description.sponsorshipProject VITAL [PTDC/MAR/111304/2009]; Portuguese Foundation for Science and Technology (FCT) [SFRH/BPD/38332/2007]; project MODELA [PTDC/MAR/098643/2008]; EU [227799]
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1038/srep17065
dc.identifier.issn2045-2322
dc.identifier.urihttp://hdl.handle.net/10400.1/11440
dc.language.isoeng
dc.peerreviewedyes
dc.publisherNature Publishing Group
dc.relationVital rates of pelagic fish larvae (VITAL)
dc.relationTAXAS VITAIS DE LARVAS DE PEIXES NECESSÁRIAS À MODELAÇÃO DA DINÂMICA LARVAR NO ECOSSISTEMA DE AFLORAMENTO COSTEIRO IBÉRICO
dc.relationAssociation of European Marine Biological Laboratories
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectSardine Sardina-Pilchardus
dc.subjectCod Gadus-Morhua
dc.subjectEarly-life-history
dc.subjectAtlantic cod
dc.subjectClupea-Harengus
dc.subjectEgg size
dc.subjectPostsettlement survivorship
dc.subjectRecruitment variability
dc.subjectGrowth
dc.subjectTemperature
dc.titleBorn small, die young: Intrinsic, size-selective mortality in marine larval fish
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleVital rates of pelagic fish larvae (VITAL)
oaire.awardTitleTAXAS VITAIS DE LARVAS DE PEIXES NECESSÁRIAS À MODELAÇÃO DA DINÂMICA LARVAR NO ECOSSISTEMA DE AFLORAMENTO COSTEIRO IBÉRICO
oaire.awardTitleAssociation of European Marine Biological Laboratories
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F111304%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F38332%2F2007/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F098643%2F2008/PT
oaire.awardURIinfo:eu-repo/grantAgreement/EC/FP7/227799/EU
oaire.citation.issue29
oaire.citation.startPage17065
oaire.citation.titleScientific Reports
oaire.citation.volume5
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStreamFP7
person.familyNameBen-Hamadou
person.familyNameSantos
person.familyNameTeodosio
person.givenNameRadhouan
person.givenNameA. Miguel P.
person.givenNameMaria
person.identifier290283
person.identifier.ciencia-id541E-93D0-BFC3
person.identifier.ciencia-idAF10-647B-65FB
person.identifier.orcid0000-0003-2686-5822
person.identifier.orcid0000-0001-9401-3504
person.identifier.orcid0000-0002-0939-9885
person.identifier.ridF-8192-2011
person.identifier.ridG-6030-2011
person.identifier.ridB-5077-2013
person.identifier.scopus-author-id15764751100
person.identifier.scopus-author-id25926746100
person.identifier.scopus-author-id56196396700
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100008530
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameEuropean Commission
rcaap.rightsopenAccess
rcaap.typearticle
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