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Chemical contamination data of wild populations of the bivalve Mimachlamys varia
Citable as data publication
Breitwieser M., Plumejeaud-Perreau C., Viricel A., Graber M., Murillo L., Becquet V., Churlaud C., Fruitier-Arnaudin I., Huet V., Lacroix C., Pante E., Le Floch S., Thomas-Guyon H. (2016) Chemical contamination data of wild populations of the bivalve Mimachlamys varia.

The aim of this study was to evaluate the effects of chemical contamination on an economically and ecologically important species inhabiting coasts and estuaries, the Mimachlamys varia. Here, we present the effects of a chronic contamination in a marine bivalve by combining multiple approaches that provide information on individual and population health. more

We sampled variegated scallops (Mimachlamys varia) at sites characterized by different contaminants and contamination levels to study the short-term responses of this species to physiological stress. We used biomarkers (SOD, MDA, GST, laccase, citrate synthase and phosphatases) as indicators of oxidative stress, immune system alteration, mitochondrial respiration and general metabolism. In parallel, concentration of 14 trace metals and 45 organic contaminants (PAHs, PCBs, pesticides) in tissues were measured. Scallops were collected outside and during their reproductive season to investigate temporal variability in contaminant and biomarker levels. As a source of concern, a location that was identified as a reference site on the basis of inorganic contaminant levels presented the same level of some persistent organic pollutants (DDT and its metabolites) than more impacted sites. Assessing the effects of chemical contamination on natural populations collected in situ requires the integration of i) multiple indicators of individual and population health and stress response, ii) different types of contaminants that may be present in the environment. Our active biomonitoring approach applied to natural populations of variegated scallops underlines how different locations on the infralittoral zone can display significantly distinct contamination profiles despite being geographically close. The dataset is splitted in two parts: one for biomarkers and trace elements tested on same individuals, one for organic contaminants tested on other individuals in parallel. It was not possible to test the same individuals at the sametime, because we would have been short of flesh else.

Biology > Organic (& bio-) chemistry
Marine/Coastal, Biomarkers, Biomonitoring, Chemical contamination, Contaminants, ANE, France, Pertuis Charentais, Mimachlamys varia (Linnaeus, 1758)

Geographical coverage
ANE, France, Pertuis Charentais [Marine Regions]

Temporal coverage
From March 2014 on [In Progress]

Taxonomic coverage
Mimachlamys varia (Linnaeus, 1758) [WoRMS]

Polychlorinated biphenyl (PCB) concentrations
Polycyclic aromatic hydrocarbons (PAHs)
Trace metals

Based on this dataset
Breitwieser, M. et al. (2016). Short-term and long-term biological effects of chronic chemical contamination on natural populations of a marine bivalve. PLoS One 11(3): e0150184., more

Dataset status: In Progress
Data type: Data
Data origin: Research: field survey
Metadatarecord created: 2016-10-18
Information last updated: 2016-10-28
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