Lafabrie C, Pergent-Martini C, Pergent G
University of Corsica, Faculty of Sciences, Equipe Ecosystèmes Littoraux, BP 52, 20250 Corte, France.
Environ Pollut. 2008 Jan;151(1):262-8. doi: 10.1016/j.envpol.2007.01.047. Epub 2007 Apr 10.
The aim of this study is to determine metal (Cd, Co, Cr, Hg, Ni, Pb) concentrations in Posidonia oceanica tissues along the Corsican coastline. The results show that except for Cr, all the metals are preferentially accumulated in the blades; this is particularly interesting as it means that future metal analyses may be carried out only on the blades avoiding thus the removal of the shoots. Moreover, they show that metal concentrations may reflect the "background noise" of the Mediterranean Sea. Station 15 (Canari) can however be distinguished from the others due to its high Co, Cr and Ni concentrations. This result may be related to the presence of a previous asbestos mine, located near this station. Therefore, this study reinforces the usefulness and the relevance of Posidonia oceanica as a tracer of spatial metal contamination and as an interesting tool for water quality evaluation.
本研究的目的是测定科西嘉岛海岸线沿线的大叶藻组织中的金属（镉、钴、铬、汞、镍、铅）浓度。结果表明，除铬之外，所有金属均优先在叶片中积累；这一点特别有意思，因为这意味着未来的金属分析仅在叶片上进行即可，从而避免了对茎的去除。此外，结果表明金属浓度可能反映地中海的“背景噪声”。然而，15号站点（卡纳里）因其钴、铬和镍的高浓度而与其他站点不同。这一结果可能与该站点附近曾存在石棉矿有关。因此，本研究强化了大叶藻作为空间金属污染示踪剂以及水质评估有趣工具的实用性和相关性。
