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Cockle population dynamics: recruitment predicts adult biomass, not the inverse

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMAGALHAES, Luisa
dc.contributor.authorFREITAS, Rosa
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDE MONTAUDOUIN, Xavier
IDREF: 075931664
dc.date.accessioned2023-09-13T09:31:16Z
dc.date.available2023-09-13T09:31:16Z
dc.date.issued2016-01-07
dc.identifier.issn0025-3162en_US
dc.identifier.urihttps://www.researchgate.net/publication/289586761_Cockle_population_dynamics_recruitment_predicts_adult_biomass_not_the_inverse
dc.identifier.urioai:researchgate.net:289586761
dc.identifier.urioai:crossref.org:10.1007/s00227-015-2809-3
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/183659
dc.description.abstractEnBivalves are an essential component of marine ecosystems, playing an important role in community maintenance. The abundance of an exploited bivalve population depends on the balance between inputs (reproduction/recruitment and growth) and outputs (mortality and fishery removals). Reproduction and subsequent successful recruitment are crucial for population sustainability. In the present study, the reciprocal relationship between recruitment (operationally defined as retention on a 1-mm sieve) and adult stock size was studied using a 17-year database (1997–2014) on an unexploited Cerastoderma edule population in a national nature reserve in Arcachon Bay, France. Results showed that cockle recruitment in a temperate climate with mild winters is rather unrelated to temperature in the previous months, but depends on recruitment timing. When temperature reached 14 °C in May, stimulating early recruitment, recruit density was high (500–1000 ind m−2), and the resulting cohort had a relatively long lifespan (>1 year) with high associated secondary production. Conversely, when temperature reached 14 °C in June, recruitment occurred later (June), recruit density was lower (0–500 ind m−2), and the cohort had a shorter lifespan (<4 months) with a consequent low secondary production. Adult spawner biomass was not positively correlated with recruitment, and the spawner biomass at the time of recruitment did not negatively affect recruitment. More than previous studies, the present study showed that factors driving cockle recruitment success are highly site-dependent, temperatures at the site being only one component.
dc.language.isoENen_US
dc.sourceresearchgate
dc.sourcecrossref
dc.title.enCockle population dynamics: recruitment predicts adult biomass, not the inverse
dc.typeArticle de revueen_US
dc.identifier.doi10.1007/s00227-015-2809-3en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalMarine Biologyen_US
bordeaux.volume163en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue1en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04205935
hal.version1
hal.date.transferred2023-09-13T09:31:17Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Marine%20Biology&rft.date=2016-01-07&rft.volume=163&rft.issue=1&rft.eissn=0025-3162&rft.issn=0025-3162&rft.au=MAGALHAES,%20Luisa&FREITAS,%20Rosa&DE%20MONTAUDOUIN,%20Xavier&rft.genre=article


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