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Environmental effects of realistic pesticide mixtures on natural biofilm communities with different exposure histories

dc.rights.licenseopenen_US
dc.contributor.authorKIM TIAM, Sandra
dc.contributor.authorTIAM, Sandra Kim
dc.contributor.authorMORIN, Soizic
dc.contributor.authorPESCE, Stephane
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorFEURTET-MAZEL, Agnes
dc.contributor.authorMOREIRA, Aurélie
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGONZALEZ, Patrice
ORCID: 0000-0003-2628-2993
IDREF: 14341917X
dc.contributor.authorMAZZELLA, Nicolas
dc.date.accessioned2024-04-16T09:39:36Z
dc.date.available2024-04-16T09:39:36Z
dc.date.issued2014-01-02
dc.identifier.issn0048-9697en_US
dc.identifier.urihttps://www.researchgate.net/publication/259586866_Environmental_effects_of_realistic_pesticide_mixtures_on_natural_biofilm_communities_with_different_exposure_histories
dc.identifier.urioai:crossref.org:10.1016/j.scitotenv.2013.12.060
dc.identifier.urioai:researchgate.net:259586866
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199086
dc.description.abstractEnThis study deals with the use of Polar Organic Chemical Integrative Sampler (POCIS) extracts to assess the impact of low-dose pesticide mixtures on natural biofilm communities originating from either a chronically contaminated or a reference field site. To investigate how natural biofilm communities, pre-exposed to pesticides in situ or not might respond to environmentally realistic changes in pesticide pressure, they were exposed to either clean water or to POCIS extracts (PE) in order to represent toxic pressure with a realistic pesticide mixture directly isolated from the field. The impacts of PE were assessed on structure, physiology and growth of biofilms. Initial levels of tolerance of phototrophic communities to PE were also estimated at day 0. PE exposure led to negative effects on diatom growth kinetics independently of in-field biofilm exposure history. In contrast, the impacts observed on dry weight, ash-free dry mass and algal fluorescence-related parameters followed different trends depending on biofilm origin. Exposure to PE induced changes in diatom assemblages for the biofilm originating from the reference field site with higher relative abundance of Eolimna minima and Nitzschia palea with PE exposure. Initial tolerance of phototrophic communities to PE was 8-fold higher for the biofilm originating from the chronically contaminated site compared to the reference field site. The use of POCIS extracts allowed us to highlight both chronic impacts of low doses of a mixture of pesticides on natural communities with regard to biofilm exposure history as well as initial levels of tolerance of phototrophic communities.
dc.language.isoENen_US
dc.sourcecrossref
dc.sourceresearchgate
dc.title.enEnvironmental effects of realistic pesticide mixtures on natural biofilm communities with different exposure histories
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.scitotenv.2013.12.060en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalScience of the Total Environmenten_US
bordeaux.page496-506en_US
bordeaux.volume473-474en_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.sourcedissemin
hal.popularnonen_US
hal.audienceInternationaleen_US
hal.exportfalse
workflow.import.sourcedissemin
dc.rights.ccPas de Licence CCen_US
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