Institute for Environmental Studies, VU University, Amsterdam, The Netherlands.
Arch Environ Contam Toxicol. 2010 Oct;59(3):464-77. doi: 10.1007/s00244-010-9489-2. Epub 2010 Mar 10.
Trace elements (Fe, Mn, Al, Zn, Cr, Cu, Ni, Pb, Cd, Hg, and As) and stable isotope ratios (delta(13)C and delta(15)N) were analyzed in sediments, invertebrates, and fishes from a tropical coastal lagoon influenced by iron ore mining and processing activities to assess the differences in trace element accumulation patterns among species and to investigate relations with trophic levels of the organisms involved. Overall significant negative relations between trophic level (given by (15)N) and trace element concentrations in gastropods and crustaceans showed differences in internal controls of trace element accumulation among the species of different trophic positions, leading to trace element dilution. Generally, no significant relation between delta(15)N and trace element concentrations was observed among fish species, probably due to omnivory in a number of species as well as fast growth. Trace element accumulation was observed in the fish tissues, with higher levels of most trace elements found in liver compared with muscle and gill. Levels of Fe, Mn, Al, and Hg in invertebrates, and Fe and Cu in fish livers, were comparable with levels in organisms and tissues from other contaminated areas. Trace element levels in fish muscle were below the international safety baseline standards for human consumption.
微量元素（Fe、Mn、Al、Zn、Cr、Cu、Ni、Pb、Cd、Hg 和 As）和稳定同位素比值（δ(13)C 和 δ(15)N）在受铁矿开采和加工活动影响的热带沿海泻湖的沉积物、无脊椎动物和鱼类中进行了分析，以评估不同物种中微量元素积累模式的差异，并研究其与所涉及生物体营养水平的关系。总体而言，腹足类和甲壳类动物的营养水平（由 δ(15)N 表示）与微量元素浓度之间存在显著负相关，这表明不同营养位置的物种之间对微量元素积累的内部控制存在差异，导致微量元素稀释。一般来说，鱼类物种之间的 δ(15)N 和微量元素浓度之间没有观察到显著关系，这可能是由于一些物种的杂食性以及快速生长所致。在鱼类组织中观察到了微量元素的积累，肝脏中的大多数微量元素含量高于肌肉和鳃。无脊椎动物中的 Fe、Mn、Al 和 Hg，以及鱼类肝脏中的 Fe 和 Cu，与其他污染地区的生物和组织中的含量相当。鱼类肌肉中的微量元素含量低于国际安全基线标准，可供人类食用。
