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Effects of copper and cadmium spiked-sediments on embryonic development of Japanese medaka (Oryzias latipes)

dc.rights.licenseopenen_US
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBARJHOUX, Iris
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorBAUDRIMONT, Magalie
IDREF: 105696722
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorMORIN, Bénédicte
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorLANDI, Laure
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorGONZALEZ, Patrice
ORCID: 0000-0003-2628-2993
IDREF: 14341917X
hal.structure.identifierEnvironnements et Paléoenvironnements OCéaniques [EPOC]
dc.contributor.authorCACHOT, Jérôme
ORCID: 0000-0002-1492-9684
IDREF: 19667672X
dc.date.accessioned2024-04-16T09:02:43Z
dc.date.available2024-04-16T09:02:43Z
dc.date.issued2012-01-30
dc.identifier.issn0147-6513en_US
dc.identifier.urihttps://www.researchgate.net/publication/221797939_Effects_of_copper_and_cadmium_spiked-sediments_on_embryonic_development_of_Japanese_medaka_Oryzias_latipes
dc.identifier.urioai:researchgate.net:221797939
dc.identifier.urioai:crossref.org:10.1016/j.ecoenv.2012.01.011
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/199079
dc.description.abstractEnBecause of their high capacity to accumulate contaminants such as persistent organic pollutants and heavy metals, aquatic sediments are considered as a long-term source of contamination for aquatic organisms. In compliance with the increasing interest both for sediment quality evaluation and the use of fish early life stage (ELS) toxicity assays, we proposed an embryo-larval test to evaluate embryotoxicity and genotoxicity of sediment-bound contaminants. Pre-blastula stage medaka (Oryzias latipes) embryos were exposed by static sediment contact to two model heavy metals (cadmium and copper) at environmental concentrations during the whole 10-day embryonic development. Lethal and sub-lethal effects were recorded in both embryos and larvae for 20 days post fertilisation (dpf) using several global toxicity and phenotypic endpoints. The comet assay was also performed on medaka prolarvae to evaluate genotoxic effects of the tested chemicals. Environmental concentrations of cadmium (Cd) and copper (Cu) did not affect embryo and larval survival. However, both heavy metals significantly induced morphological abnormalities, particularly spinal and cardiovascular deformities. Cd but not Cu induced tachycardia. Both heavy metals induced a significant increase in DNA damage at all tested concentrations. Resulting LOEC values for Cd and Cu corresponded to 1.9 and 8.5 μg/g d.w. sediment, respectively. Although metal bioavailability is probably lower for naturally contaminated sediments, the relatively low toxicity thresholds for both Cd and Cu raise the question of possible risk for fish embryos developing in direct contact to sediments. This study demonstrates the applicability, sensitivity and relevance of the Japanese medaka embryo-larval assay (MELA) to evaluate sediment hazardous potency at environmental concentrations of heavy metals.
dc.language.isoENen_US
dc.sourceresearchgate
dc.sourcecrossref
dc.title.enEffects of copper and cadmium spiked-sediments on embryonic development of Japanese medaka (Oryzias latipes)
dc.typeArticle de revueen_US
dc.identifier.doi10.1016/j.ecoenv.2012.01.011en_US
dc.subject.halSciences de l'environnementen_US
bordeaux.journalEcotoxicology and Environmental Safetyen_US
bordeaux.page272-282en_US
bordeaux.volume79en_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
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Ecotoxicology%20and%20Environmental%20Safety&rft.date=2012-01-30&rft.volume=79&rft.spage=272-282&rft.epage=272-282&rft.eissn=0147-6513&rft.issn=0147-6513&rft.au=BARJHOUX,%20Iris&BAUDRIMONT,%20Magalie&MORIN,%20B%C3%A9n%C3%A9dicte&LANDI,%20Laure&GONZALEZ,%20Patrice&rft.genre=article


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