【摘要】 汞可以通过鱼类富集,危害人类健康。为了解东寨港红树林区鱼类的汞含量及其生物质量,本研究对林区内14种主要鱼类和不同环境介质的汞含量进行了分析。研究发现,鱼肉汞平均含量为67.7 ng.g-1,变化范围为34.9~154.9 ng.g-1。海水、红树植物叶片、沉积物中汞含量分别为0.4μg.L-1、153.9 ng.g-1、314.1 ng.g-1。相对于海水,鱼对环境中的汞具有明显的生物富集作用,鱼体汞含量与其食物来源和生活习性有关,杂食性鱼类汞含量高于植食性鱼类和肉食性鱼类汞含量。所有鱼类体内的生物质量指数均<1,可安全食用。更多还原

【Abstract】 Mercury can threat human health through fish enrichment.In order to understand the mercury concentration and biological quality of major fish species in Dongzhaigang mangrove forest area of Hainan,this paper analyzed the mercury concentrations of 14 main fish species and different environmental media in this forest area.It was detected that the mercury concentration in fish muscle was 34.9-154.9 ng·g-1,with an average of 67.7 ng·g-1,and that in sea water,mangrove leaves,and sediments was 0.4 μg·L-1,153.9 ng·g-1,and 314.1 ng·g-1,respectively.Relative to sea water,the fishes enriched more mercury from the environment.The mercury concentration in the fishes was related to their food sources and living habits.Omnivorous fish had higher mercury concentration than herbivorous fish and carnivorous fish.All the fishes had the biological quality index lower than 1,being safe as foods.更多还原