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dc.rights.licenseopenen_US
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
dc.contributor.authorDAIRAIN, Annabelle
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMAIRE, Olivier
IDREF: 111161525
hal.structure.identifierCentre Hospitalier Régional Universitaire de Besançon [CHRU Besançon]
dc.contributor.authorMEYNARD, Guillaume
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
dc.contributor.authorORVAIN, Francis
dc.date.accessioned2024-03-20T13:11:13Z
dc.date.available2024-03-20T13:11:13Z
dc.date.issued2020
dc.identifier.issn0048-9697en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/188878
dc.description.abstractEnIn coastal environments, bioturbators greatly influence the physical and biogeochemical properties of sediments with consequences for central ecological processes such as erosion dynamics. In addition to their direct impact on sediment stability, bioturbators can have an impact on sediment erosion processes by modulating the growth of microphytobenthic organisms that stabilise the surface layer of sediments. The direct and indirect influences of bioturbators on sediment dynamics depend on the magnitude of their activity and inherently on their physiological state. Bioturbators are infected by various parasites, which have a substantial impact on their physiology and behaviour. However, the knock-on effects of parasites on key ecosystem functions like sediment dynamics remain poorly studied. We conducted flume experiments to investigate the indirect influence of the trematode Bucephalus minimus parasitising the common cockle Cerastoderma edule on the dynamics of sandy sediments enriched or not with microphytobenthos (MPB). Cockles modified bed roughness, sediment surface erodibility and hence destabilised sandy sediments. In sediments not enriched with MPB, both unparasitised and parasitised organisms had a similar impact on the stability of sandy sediments. In contrast, parasitism slightly reduced the destabilisation effect of cockles in MPB-enriched sediments. In the latter, parasitised cockles did not interfere with MPB growth whereas unparasitised organisms constrained the microalgae development. However, the enrichment of the surface layers of sandy sediments with MPB did not modulate the erosion dynamics of these environments. Thus, the lower destabilisation effect of parasitised cockles was not here linked to a stabilisation effect of MPB. When standardised for length, parasitised cockles were lighter than unparasitised organisms. Weakened cockles may have had a lower bioturbation potential than unparasitised conspecifics. If so, the influence parasitised cockles had on sediment erodibility and sediment roughness may have been reduced. The absence of a parasitism effect on the dynamics of MPB-unenriched sediments remains nonetheless unclear.
dc.language.isoENen_US
dc.subject.enCockle
dc.subject.enParasitism
dc.subject.enBioturbation
dc.subject.enMicrophytobenthos
dc.subject.enErosion
dc.subject.enRoughness
dc.subject.enSediment erodability
dc.title.enDoes parasitism influence sediment stability? Evaluation of trait-mediated effects of the trematode Bucephalus minimus on the key role of cockles Cerastoderma edule in sediment erosion dynamics
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.scitotenv.2020.139307en_US
dc.subject.halSciences de l'environnementen_US
dc.subject.halPlanète et Univers [physics]/Sciences de la Terreen_US
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnement/Interactions entre organismesen_US
bordeaux.journalScience of the Total Environmenten_US
bordeaux.page139307en_US
bordeaux.volume733en_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamEAen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcehal
hal.identifierhal-03793607
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcehal
dc.rights.ccPas de Licence CCen_US
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20of%20the%20Total%20Environment&rft.date=2020&rft.volume=733&rft.spage=139307&rft.epage=139307&rft.eissn=0048-9697&rft.issn=0048-9697&rft.au=DAIRAIN,%20Annabelle&MAIRE,%20Olivier&MEYNARD,%20Guillaume&ORVAIN,%20Francis&rft.genre=article


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