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Role of macrofauna on benthic oxygen consumption in sandy sediments of a high-energy tidal beach

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCHARBONNIER, Celine
IDREF: 176318933
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLAVESQUE, Nicolas
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorANSCHUTZ, Pierre
ORCID: 0000-0001-5331-7974
IDREF: 076300331
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBACHELET, Guy
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLECROART, Pascal
dc.date.accessioned2024-05-27T10:09:30Z
dc.date.available2024-05-27T10:09:30Z
dc.date.issued2016-03-01
dc.identifier.issn0278-4343en_US
dc.identifier.urihttps://www.researchgate.net/publication/298434760_Role_of_macrofauna_on_benthic_oxygen_consumption_in_sandy_sediments_of_a_high-energy_tidal_beach
dc.identifier.urioai:researchgate.net:298434760
dc.identifier.urioai:crossref.org:10.1016/j.csr.2016.03.017
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/200067
dc.description.abstractEnSandy beaches exposed to tide and waves are characterized by low abundance and diversity of benthic macrofauna, because of high-energy conditions. This is the reason why there are few studies on benthic communities living in such highly dynamic environments. It has been shown recently that tidal sandy beaches may act as biogeochemical reactors. Marine organic matter that is supplied in the sand during each flood tide is efficiently mineralized through aerobic respiration. In order to quantify the role of macrofauna in the whole beach benthic respiration, we studied the macrofauna and the pore water oxygen content of an exposed sandy beach (Truc Vert, SW of France) during four seasons in 2011. The results showed that macrofauna was characterised by a low number of species of specialized organisms such as the crustaceans Eurydice naylori and Gastrosaccus spp. and the polychaetes Ophelia bicornis and Scolelepis squamata. The distribution and abundance of macrofauna were clearly affected by exposure degree and emersion time. The combined monitoring of benthic macrofauna and pore waters chemistry allowed us to estimate (1) the macrofauna oxygen uptake, calculated with a standard allometric relationship using biomass data, and (2) the total benthic oxygen uptake, calculated from the oxygen deficit measured in pore waters. This revealed that benthic macrofauna respiration represented a variable but low (<10%) contribution to the total benthic oxygen consumption This suggests that oxygen was mainly consumed by microbial respiration.
dc.language.isoENen_US
dc.sourceresearchgate
dc.sourcecrossref
dc.title.enRole of macrofauna on benthic oxygen consumption in sandy sediments of a high-energy tidal beach
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.csr.2016.03.017en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalContinental Shelf Researchen_US
bordeaux.hal.laboratoriesEPOC : Environnements et Paléoenvironnements Océaniques et Continentaux - UMR 5805en_US
bordeaux.institutionUniversité de Bordeauxen_US
bordeaux.institutionCNRSen_US
bordeaux.teamECOBIOCen_US
bordeaux.peerReviewedouien_US
bordeaux.inpressnonen_US
bordeaux.import.sourcedissemin
hal.identifierhal-04588945
hal.version1
hal.date.transferred2024-05-27T10:09:32Z
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=Continental%20Shelf%20Research&rft.date=2016-03-01&rft.eissn=0278-4343&rft.issn=0278-4343&rft.au=CHARBONNIER,%20Celine&LAVESQUE,%20Nicolas&ANSCHUTZ,%20Pierre&BACHELET,%20Guy&LECROART,%20Pascal&rft.genre=article


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