Biomarker modulation associated with marine diesel contamination in the Iceland scallop (Chlamys islandica).
The decrease of ice cover in the Arctic will lead to an increase of ship traffic in the upcoming decades. Consequently, oil pollution is expected. In this context, the goals of this study were to evaluate the biological impact of marine diesel contamination and, on this basis, to determine analytical tools of interest (biomarkers) for future biomonitoring of diesel spills. Using a 7-day contamination protocol, this study investigated biochemical modulations in the digestive gland of the Iceland scallop (Chlamys islandica). Incorporation of contaminants was verified assessing haemolymph metabolites. Results showed a response of glutathione-S-transferase to contamination suggesting detoxification processes and the suitability of such a tool for diesel spill biomonitoring. The lack of modulation of superoxide dismutase activity and lipid peroxidation suggests no oxidative stress and the unsuitability of these molecular tools for biomonitoring.
Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France. t.milinkovitch@hotmail.fr.|IAMC-CNR, Istituto per l'Ambiente Marino Costiero, Consiglio Nazionale delle Ricerche, Località Sa Mardini, 09170, Torregrande, Oristano, Italy. t.milinkovitch@hotmail.fr.
Thomas
T
Milinkovitch
Akvaplan-niva, FRAM, High North Research Centre for Climate and the Environment, 9296, Tromsø, Norway. perrine.geraudie@akvaplan.niva.no.
Perrine
P
Geraudie
Akvaplan-niva, FRAM, High North Research Centre for Climate and the Environment, 9296, Tromsø, Norway. lionel.camus@akvaplan.niva.no.|Department of Engineering and Safety, UiT the Arctic University of Norway, Postboks 6050 Langnes, 9037, Tromsø, Norway. lionel.camus@akvaplan.niva.no.
Lionel
L
Camus
Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France. valerie.huet@univ-lr.fr.
Valérie
V
Huet
Littoral Environnement et Sociétés (LIENSs), UMR 7266, CNRS-Université de La Rochelle, 2 rue Olympe de Gouges, F-17042, La Rochelle Cedex 01, France. helene.thomas@univ-lr.fr.
Hélène
H
Thomas-Guyon
D000818:Animals; D015415:Biomarkers / Q000378:metabolism; D005982:Glutathione Transferase / Q000378:metabolism*; D006458:Hemolymph / Q000378:metabolism; D007055:Iceland; D015227:Lipid Peroxidation; D050216:Metabolic Detoxication, Phase I; D018384:Oxidative Stress; D049897:Pectinidae / Q000187:drug effects / Q000201:enzymology*; D059392:Petroleum Pollution; D013482:Superoxide Dismutase / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000378:metabolism* / Q000633:toxicity; D060753:Water Quality
D015415:Biomarkers; D014874:Water Pollutants, Chemical; D013482:Superoxide Dismutase; D005982:Glutathione Transferase
Digestive gland; Glutathione-S-transferase; Haemolymph metabolites; Iceland scallops; Marine diesel; Oxidative stress