标题：Impact study of M’zar submarine emissary (Agadir Bay, Morocco): Trace metals accumulation (Cd, Pb and Hg) and biochemical response of marine MolluskDonax trunculus(Linnaeus, 1758),
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2015
卷号：6
期号：8
页码：2292-2300
出版社：University of Mohammed Premier Oujda
摘要：The environmental quality of M.zar beach, subjected to effluent from a wastewater treatment plant and the proximity of Souss Oued estuary providing agricultural and fertilized compounds, was assessed in two different sites (S1, situated in the south of Oued souss estuary and S2 in the south of M.zar plant submarine emissary outfall) between 2009 and 2011, focusing on metal contamination (Cd, Hg, Pb) in Donax trunculus (Linnaeus, 1758) soft tissues. In addition, associated toxicological effects were assessed using a multibiomarker approach (catalase, acetylcholinestrerase, glutathione S-transferase, Malondialdehyd). D. trunculus from both sites shows different seasonal and spatial biochemical responses and heavy metals bioaccumulation pattern. The clams responded differently to metal contamination with different biomarker responses showing a clear site trend, suggesting different sources and/or magnitudes of contamination. Mercury was a source of oxidative stress in clams of both sites with a significant influence on neurotoxicity and antioxidant defense and enhancement of lipid peroxidation
