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Relationship between bacterial compartment and particulate organic matter (POM) in coastal systems: An assessment using fatty acids and stable isotopes

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLIÉNART, Camilla
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorSAVOYE, Nicolas
ORCID: 0000-0001-6433-8519
IDREF: 067128637
hal.structure.identifierLaboratoire d'Océanographie Microbienne [LOMIC]
dc.contributor.authorCONAN, Pascal
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDAVID, Valérie
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
dc.contributor.authorBARBIER, Pierrick
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBICHON, Sabrina
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCHARLIER, Karine
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCOSTES, Laurence
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorDERRIENNIC, Hervé
hal.structure.identifierObservatoire aquitain des sciences de l'univers [OASU]
dc.contributor.authorFERREIRA, Sophie
hal.structure.identifierObservatoire océanologique de Banyuls [OOB]
dc.contributor.authorGUEUX, Aurore
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
hal.structure.identifierStation de Biologie Marine de Concarneau
hal.structure.identifierMuséum national d'Histoire naturelle [MNHN]
dc.contributor.authorHUBAS, Cédric
hal.structure.identifierObservatoire océanologique de Banyuls [OOB]
dc.contributor.authorMARIA, Eric
hal.structure.identifierBiologie des Organismes et Ecosystèmes Aquatiques [BOREA]
dc.contributor.authorMÉZIANE, Tarik
dc.date.accessioned2024-01-22T17:42:21Z
dc.date.available2024-01-22T17:42:21Z
dc.date.issued2020-07
dc.identifier.issn0272-7714en_US
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/187405
dc.description.abstractEnParticulate organic matter (POM) in coastal systems is a mixture of different organic matter (OM) sources originating from land and sea. Among sources, bacterial biomass plays a large role in OM processing and carbon recycling in the ocean and is often neglected as a source in common approaches. The present study proposes to use elemental and isotopic ratio of carbon and nitrogen (C:N, δ13C, δ15N) and fatty acids to investigate the relationship between bacteria and surface water POM composition of three systems with different characteristics (two marine and one estuarine) over an annual cycle. Overall, our results highlight a positive relationship between bacterial contribution and continental degraded or undergoing degradation POM for all the studied systems and an inverse relationship with pelagic primary producers. At multisystem scale, high bacterial contribution is linked to high proportion of refractory terrestrial material characterizing estuarine stations whereas in marine systems, the occurrence of bacteria is mainly linked to river POM. Over the annual cycle, bacterial markers are more abundant during the winter period characterized by larger river and/or benthic POM contribution. This seasonal pattern is mainly driven by changes in river flows and resuspension. This study highlights the importance of bacterial compartment as a component of coastal and estuarine POM. Even though these results remains semi-quantitative, similar studies in other types of systems can help to understand microbial role in OM dynamic and to better estimate bacterial source in carbon budgets and food web studies.
dc.language.isoENen_US
dc.subject.enMixing models
dc.subject.enFrench littoral
dc.subject.enFatty acids
dc.subject.enPOM dynamic
dc.subject.enBacteria
dc.subject.enδ13C
dc.subject.enδ15N
dc.title.enRelationship between bacterial compartment and particulate organic matter (POM) in coastal systems: An assessment using fatty acids and stable isotopes
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.ecss.2020.106720en_US
dc.subject.halSciences du Vivant [q-bio]/Ecologie, Environnementen_US
bordeaux.journalEstuarine, Coastal and Shelf Scienceen_US
bordeaux.page106720en_US
bordeaux.volume239en_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.sourcehal
hal.identifiermnhn-02546088
hal.version1
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exporttrue
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=Estuarine,%20Coastal%20and%20Shelf%20Science&rft.date=2020-07&rft.volume=239&rft.spage=106720&rft.epage=106720&rft.eissn=0272-7714&rft.issn=0272-7714&rft.au=LI%C3%89NART,%20Camilla&SAVOYE,%20Nicolas&CONAN,%20Pascal&DAVID,%20Val%C3%A9rie&BARBIER,%20Pierrick&rft.genre=article


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