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Effects of digenean trematodes and heterotrophic bacteria on mortality and burying capability of the common cockle Cerastoderma edule (L.)

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBLANCHET, Hugues
IDREF: 086160648
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorRAYMOND, Natalie
IDREF: 160370981
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDE MONTAUDOUIN, Xavier
IDREF: 075931664
dc.contributor.authorCAPDEPUY, Michèle
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBACHELET, Guy
dc.date.accessioned2023-09-18T08:23:25Z
dc.date.available2023-09-18T08:23:25Z
dc.date.issued2003-08-26
dc.identifier.issn0022-0981en_US
dc.identifier.urioai:crossref.org:10.1016/s0022-0981(03)00215-6
dc.identifier.uriorcid:0000-0003-4431-4207:10.1016/s0022-0981(03)00215-6
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/183694
dc.description.abstractEnPopulation dynamics of marine invertebrates is controlled by a variety of abiotic and biotic factors. Among these, some have received lesser attention from marine ecologists because of their ‘discrete’ nature. This is the case of parasitism and bacterial load. In the present study, we focused on the role that both digenean trematodes and heterotrophic aerobic bacteria might play in the mortality and burying behaviour of cockles, Cerastoderma edule. The bivalves were sampled monthly during 1 year from two sites in Arcachon Bay (French Atlantic coast). Mortality rates were assessed after transferring in the laboratory normally buried and unburied (i.e. found lying at the sediment surface at low tide) cockles. Their digenean and bacterial loads were determined for both positions (normally buried and unburied). Mortality rate was significantly higher for cockles found out of the sediment at low tide, suggesting that this abnormal position was a prelude to cockles' death. Comparison of digenean load of cockles showed no significant difference between buried and unburied bivalves. In contrast, bacterial load was significantly higher in unburied cockles than in normally buried animals. The effect of high concentration of a marine bacterial strain (Pseudomonas fluorescens) on cockles' burying behaviour and mortality was tested in the laboratory. Results showed that these bacteria could trigger the emergence of animals from the sediment but did not cause cockles' death. These field observations and laboratory experiments suggest that bacteria, rather than digenean trematodes, could play a role in the emergence of cockles and, hence, affect their survival in the wild.
dc.language.isoENen_US
dc.sourcecrossref
dc.sourceorcid
dc.title.enEffects of digenean trematodes and heterotrophic bacteria on mortality and burying capability of the common cockle Cerastoderma edule (L.)
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/s0022-0981(03)00215-6en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalJournal of Experimental Marine Biology and Ecologyen_US
bordeaux.page89-105en_US
bordeaux.volume293en_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-04209671
hal.version1
hal.date.transferred2023-09-18T08:23:32Z
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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