Aix-Marseille University, Mediterranean Institute of Oceanography (MIO), CNRS/INSU UMR 7294, 13288 Marseille, Cedex 09, France.
Mar Pollut Bull. 2012 May;64(5):974-83. doi: 10.1016/j.marpolbul.2012.02.014. Epub 2012 Mar 7.
Consumption of marine organisms represents one of the main exposure sources of contaminants for human populations. To obtain a global view of the contamination in commercial fish in the NW Mediterranean Sea, we analysed four types of priority contaminants (PCBs, PBDEs, Hg and (137)Cs) in the European hake, Merluccius merluccius, from the Gulf of Lions in relation with organism's trophic level (δ(15)N). All contaminants presented a significant increase in concentration in hake muscle with trophic level. However, obvious differences between contaminants were evidenced. Biomagnification factors (BMF and FWMF) along the hake food web were higher for Hg and CB-153 than for BDE-47 and (137)Cs, and increase in contaminant concentration with trophic level occurred at different rates depending on contaminants. Such differences of biomagnification patterns can be related to physico-chemical properties of the different contaminants.
食用海洋生物是人类接触污染物的主要来源之一。为了全面了解西北地中海商业鱼类的污染情况，我们分析了来自法国隆格多克-鲁西永地区（Gulf of Lions）的欧洲无须鳕（Merluccius merluccius）体内四种优先污染物（多氯联苯、多溴联苯醚、汞和 137 铯）与生物体营养级（δ(15)N）之间的关系。所有污染物在无须鳕肌肉中的浓度均随营养级显著增加。然而，不同污染物之间存在明显差异。汞和 CB-153 的生物放大因子（BMF 和 FWMF）高于 BDE-47 和 137 铯，而且污染物浓度随营养级增加的速率因污染物而异。这种生物放大模式的差异可能与不同污染物的物理化学性质有关。
