浙江大学学报（理学版）2012，Vol.39Issue(3)：338-344,7.DOI:10.3785/j.issn.1008-9497.2012.03.021
浙江沿海经济鱼类体内重金属的残留水平
Levels of heavy metals in commercial fish species from the near-shore of Zhejiang Province
摘要
Abstract
Six important commercial fish species from the near-shore of Zhejiang Province were collected in the fall of 2006. The contents of copper, lead, zinc, cadmium, chromium, mercury and arsenic in the fish muscle were determined. The result showed that the contents of different heavy metals had the sequences: zinc>copper>arsenic> lead and mercury>chromium>cadmium. The levels of heavy metals in different fishes had the following sequences through cluster analysis: mudskipper>mullet>white croaker>anchovy>bummalo>tawny puffer. The contents of heavy metals in fishes had relationship with those in seawater and sediment. But the physiological character and feeding pathway were more important when the contents of heavy metals in marine environment was relatively low. The content of mercury in fishes was related to the water layer in which they lived, it generally had the tendency that bottom>lower-middle> upper-middle. It was found out through temporal and spatial comparing that the contents of heavy metals in different fish species did not had so much large difference, it generally did not exceed two orders of magnitude. There was upper limit of metal levels which indicated that fishes could actively adjust the content of heavy metals in their bodies. The residual levels of heavy metals in these six fish species were estimated by single factor contaminant index. The result showed that the fishes from the near-shore of Zhejiang Province were seriously polluted by arsenic and the rest heavy metals were basically in good situation.关键词
鱼类/重金属/浙江沿海Key words
fish/heavy metals/near-shore of Zhejiang分类
资源环境引用本文复制引用
孙维萍,刘小涯,潘建明,翁焕新..浙江沿海经济鱼类体内重金属的残留水平[J].浙江大学学报（理学版）,2012,39(3):338-344,7.基金项目
浙江省自然科学基金资助项目(Y5110166). （Y5110166）
