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How annual course of photoperiod shapes seasonal behavior of diploid and triploid oysters, Crassostrea gigas

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorPAYTON, Laura
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSOW, Mohamedou
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMASSABUAU, Jean-Charles
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCIRET, Pierre
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorTRAN, Damien
dc.date.accessioned2024-09-23T12:38:05Z
dc.date.available2024-09-23T12:38:05Z
dc.date.issued2017-10-11
dc.identifier.issn1932-6203en_US
dc.identifier.urioai:crossref.org:10.1371/journal.pone.0185918
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/201742
dc.description.abstractEnIn this work, we study if ploidy (i.e. number of copies of chromosomes) in the oyster Crassostrea gigas may introduce differences in behavior and in its synchronization by the annual photoperiod. To answer to the question about the effect of the seasonal course of the photoperiod on the behavior of C. gigas according to its ploidy, we quantified valve activity by HFNI valvometry in situ for 1 year in both diploid and triploid oysters. Chronobiological analyses of daily, tidal and lunar rhythms were performed according the annual change of the photoperiod. In parallel, growth and gametogenesis status were measured and spawning events were detected by valvometry. The results showed that triploids had reduced gametogenesis, without spawning events, and approximately three times more growth than diploids. These differences in physiological efforts could explain the result that photoperiod (daylength and/or direction of daylength) differentially drives and modulates seasonal behavior of diploid and triploid oysters. Most differences were observed during long days (spring and summer), where triploids showed longer valve opening duration but lower opening amplitude, stronger daily rhythm and weaker tidal rhythm. During this period, diploids did major gametogenesis and spawning whereas triploids did maximal growth. Differences were also observed in terms of moonlight rhythmicity and neap-spring tidal cycle rhythmicity. We suggest that the seasonal change of photoperiod differentially synchronizes oyster behavior and biological rhythms according to physiological needs based on ploidy.
dc.language.isoENen_US
dc.sourcecrossref
dc.title.enHow annual course of photoperiod shapes seasonal behavior of diploid and triploid oysters, Crassostrea gigas
dc.typeArticle de revueen_US
dc.identifier.doi10.1371/journal.pone.0185918en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalPLoS ONEen_US
bordeaux.pagee0185918en_US
bordeaux.volume12en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.issue10en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamEAen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04706020
hal.version1
hal.date.transferred2024-09-23T12:38:08Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccCC BYen_US
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