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Early life history of larvae and early juvenile atlantic horse mackerel trachurus trachurus off the portuguese west coast

dc.contributor.authorBeveren, Elisabeth Van
dc.contributor.authorKlein, Maria
dc.contributor.authorSerrão, Ester A.
dc.contributor.authorGonçalves, Emanuel João
dc.contributor.authorBorges, Rita Alexandra
dc.date.accessioned2016-09-30T17:54:05Z
dc.date.available2016-09-30T17:54:05Z
dc.date.issued2016
dc.description.abstractEarly life history traits (ELHTs) are key to understand recruitment patterns in marine animals. However, for reef fishes, studies on ELHTs are mainly focused on tropical systems and little is known for temperate reefs. In this study we used SMURFs (Standard Monitoring Units for the Recruitment of Reef Fishes) to collect fish in a temperate rocky reef system (Arrábida Marine Park, Portugal) on a weekly basis for three months during the recruitment period. Six sub-surface SMURFs sampled 2490 Atlantic horse mackerel (Trachurus trachurus) postlarvae and juveniles. Sagittal and lapilli otoliths were extracted from a subsample of 296 fish and ELHTs, such as size and age at settlement, growth rate and age at first secondary growth formation were examined. Additionally, we tested three growth curves and selected the best suited to back-calculate the hatching pattern based on the lengths of all sampled fish. Standard length ranged from 6.13 mm to 48.56 mm and subsampled fish were aged between 19 days to 44 days. Age and size at settlement were estimated between 19 days and 36 days for individuals of 6.13 mm and 24.95 mm, respectively. Otolith shape changed clearly with increasing age and, on average, secondary growth started to form on day 33 (±3 days). Age/length relationship was well described by a Gompertz growth model which was used to back-calculate hatching dates. Four distinct hatching cohorts were identified with fish of the earliest cohort showing a faster body and otolith growth. This study indicates that the nearshore environment might have an important role in the early growth, development and hence recruitment of Atlantic horse mackerel. Information on the early life history of Atlantic horse mackerel is key to understand recruitment processes for this economically and biologically important species.pt_PT
dc.description.sponsorshipFundação para a Ciência e a Tecnologia (FCT)pt_PT
dc.identifier.citationFisheries Research, 183, 111–118. doi: 10.1016/j.fishres.2016.05.018pt_PT
dc.identifier.doi10.1016/j.fishres.2016.05.018pt_PT
dc.identifier.issn0165-7836
dc.identifier.urihttp://hdl.handle.net/10400.12/4943
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherElsevierpt_PT
dc.relationCCMAR/Multi/04326/2013pt_PT
dc.relationRECRUITMENT PATTERNS AND PROCESSES OF REEF FISH SPECIES IN A TEMPERATE COASTAL SYSTEM
dc.relationRECOVERY AND MANAGEMENT OF WATER QUALITY IN SMALL EUTROPHIED PONDS OF THE ALGARVE
dc.relationMATRIX: Understanding temperate reef fish connectivity
dc.relationREEFFISH - Identifying the drivers of recruitment success in temperate reef fish
dc.relationStrategic Project - UI 331 - 2011-2012
dc.subjectCarangidaept_PT
dc.subjectMetamorphosispt_PT
dc.subjectHatching cohortpt_PT
dc.subjectOtolith microstructurept_PT
dc.subjectSecondary growthpt_PT
dc.subjectEarly growthpt_PT
dc.titleEarly life history of larvae and early juvenile atlantic horse mackerel trachurus trachurus off the portuguese west coastpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleRECRUITMENT PATTERNS AND PROCESSES OF REEF FISH SPECIES IN A TEMPERATE COASTAL SYSTEM
oaire.awardTitleRECOVERY AND MANAGEMENT OF WATER QUALITY IN SMALL EUTROPHIED PONDS OF THE ALGARVE
oaire.awardTitleMATRIX: Understanding temperate reef fish connectivity
oaire.awardTitleREEFFISH - Identifying the drivers of recruitment success in temperate reef fish
oaire.awardTitleStrategic Project - UI 331 - 2011-2012
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBD%2F72970%2F2010/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT//SFRH%2FBPD%2F23743%2F2005/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR%2F115226%2F2009/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/3599-PPCDT/PTDC%2FMAR-EST%2F4356%2F2012/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/PEst-OE%2FMAR%2FUI0331%2F2011/PT
oaire.citation.conferencePlaceNetherlandspt_PT
oaire.citation.endPage118pt_PT
oaire.citation.startPage111pt_PT
oaire.citation.titleFisheries Researchpt_PT
oaire.citation.volume183pt_PT
oaire.fundingStream3599-PPCDT
oaire.fundingStream3599-PPCDT
oaire.fundingStream6817 - DCRRNI ID
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/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
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.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsrestrictedAccesspt_PT
rcaap.typearticlept_PT
relation.isProjectOfPublication5c52a5ea-f212-4d51-a5b2-02abd2853d58
relation.isProjectOfPublication314683b9-94ed-4954-9a2f-1ce99f320065
relation.isProjectOfPublication3131aa3b-6046-400d-9711-48641e64b5ca
relation.isProjectOfPublicationaeb53ff1-7268-4d34-b62e-2471ff6073f4
relation.isProjectOfPublication96890d2c-1aa4-4408-9eb9-d0f1e6bcac32
relation.isProjectOfPublication.latestForDiscoveryaeb53ff1-7268-4d34-b62e-2471ff6073f4

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