Anajjar El Mehdi, Chiffoleau Jean-François, Bergayou Hafida, Moukrim Abdelatif, Burgeot Thierry, Cheggour Mohamed
Laboratoire Eau et Environnement, Faculté des Sciences, Ibn Zohr University, Agadir, Morocco.
Bull Environ Contam Toxicol. 2008 Mar;80(3):283-8. doi: 10.1007/s00128-008-9364-2. Epub 2008 Feb 22.
Concentrations of seven metals (Cd, Cu, Cr, Pb, Ni, Zn, Hg) were monitored monthly during 2 years in two bivalves, Cerastoderma edule and Scrobicularia plana collected from the Souss Estuary (South Morocco) before and after the commissioning of a sewage treatment plant in November 2002. According to trace metals, changes in concentrations were observed mainly in S. plana, characterised by a decrease of Cu, Hg and Pb when Cd was clearly increasing. Conversely, no clear changes were observed in C. edule during the same periods. This study suggests the use of S. plana in the monitoring of trace metal contamination of such coastal marine environments.
在2002年11月一座污水处理厂投产前后的两年时间里，每月监测从摩洛哥南部苏斯河口采集的两种双壳贝类（砂海螂和扁平拟蟹守螺）体内七种金属（镉、铜、铬、铅、镍、锌、汞）的浓度。根据痕量金属情况，主要在扁平拟蟹守螺中观察到浓度变化，其特征是铜、汞和铅含量下降，而镉含量明显上升。相反，同期在砂海螂中未观察到明显变化。本研究表明可利用扁平拟蟹守螺来监测此类沿海海洋环境中的痕量金属污染。
