Biomonitoring of Mimachlamys varia transplanted to areas impacted by human activities (La Rochelle Marina, France).

摘要: Abstract The development of human activities on French Atlantic coastlines (La Rochelle) lead to chronic pollution the environment by organic (pesticides, hydrocarbons, agrochemicals) and inorganic (heavy metals) contaminants. These past years, several regulations have been implemented preserve coastal environments. purpose this study was perform biomonitoring bivalve species using an outdoor caging technique. goal our work assess impact harbour’s trace elements state health marine Mimachlamys varia. First, various molecular defence biomarkers were measured: SOD (oxidative stress), GST (detoxification process), MDA (lipid peroxidation), Laccase (immune reaction). Thus, in April 2016, scallops collected at three sites, which differ their levels pollution, after transplantation into port areas (fairing, rainwater) a control site (marsh). Bivalve samples taken sampling dates (D0, D07, D21). Biomarker assays performed digestive glands due bioaccumulation properties. second aim explore impacts pollutants placed environmental sites. After 21 days, biomarker response transplanted bivalves revealed decrease, stimulations, higher concentrations Cu, Fe, As, Co, Mn, Zn, Sn no significant variation concentration. Our ecological relevance approaches opens interesting perspectives identify M. varia such as pertinent sentinel species. selected determined could confirm ability appraise water quality hydro-systems located coastlines, areas.