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大通湖及东洞庭湖区生物体重金属的水平及其生态评价
引用本文:祝云龙,姜加虎,黄群,孙占东,王红娟. 大通湖及东洞庭湖区生物体重金属的水平及其生态评价[J]. 湖泊科学, 2007, 19(6): 690-697
作者姓名:祝云龙  姜加虎  黄群  孙占东  王红娟
作者单位:1. 中国科学院南京地理与湖泊研究所,南京,210008;中国科学院研究生院,北京,100049
2. 中国科学院南京地理与湖泊研究所,南京,210008
基金项目:国土资源部地质调查项目 , 湖南省环境保护局项目
摘    要:于2005年11月采集了大通湖及东洞庭湖区湖水和水生生物样品,并测定了水和水生生物样品中重金属(Cd、Pb、Hg、As)的含量,并对湖区生物体重金属进行了污染评价.研究结果表明,大通湖及东洞庭湖区湖水中重金属含量较小,绝大部分采样点水质都属于国家Ⅰ类水标准;水生生物体内CD、Pb含量为虾>螺>鱼,Hg的含量为鱼>螺>虾,As的含量为螺>虾>鱼;而鱼类重金属含量则为底栖鱼类>中上层鱼类,肉食性鱼类>植食性鱼类.大通湖及东洞庭湖区生物体中CD、Pb的污染指数为虾>螺>鱼,Hg的污染指数则为鱼>螺>虾,As的污染指数则为螺>虾>鱼.

关 键 词:水生生物  重金属含量  生态评价  洞庭湖  大通湖  洞庭湖区  生物体内  重金属  水平  生态评价  ecological assessment  Lake  content  污染指数  植食性  肉食性鱼类  中上层鱼类  标准  国家  水质  采样点  金属含量  结果  研究
收稿时间:2006-11-28
修稿时间:2007-01-25

The heavy metal content in organisms at Lake Dongting and its ecolcogical assessment
ZHU Yunlong,JIANG Jiahu,HUANG Qun,SUN Zhandong and WANG Hongjuan. The heavy metal content in organisms at Lake Dongting and its ecolcogical assessment[J]. Journal of Lake Science, 2007, 19(6): 690-697
Authors:ZHU Yunlong  JIANG Jiahu  HUANG Qun  SUN Zhandong  WANG Hongjuan
Affiliation:Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;Graduate School of Chinese Academy of Sciences, Beijing 100049, P. R. China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China,Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China and Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, P. R. China;Graduate School of Chinese Academy of Sciences, Beijing 100049, P. R. China
Abstract:Based on the monitoring data obtained from Lake Dongting in November 2005,the concentrations of the heavy metals in water and organisms were analyzed,and the pollution assessment of heavy metals in organisms was made.The results showed that the concentrations ot heavy metals in water were lower than Type I of the People's Republic of China,the concentrations of heavy metals in Penaeus vannamei Booen were higher than in Bellamya quadrata and in fish,and the concentrations of heavy metals in demersal fish were higher than that in pelagic fish, and the concentrations of heavy metals in predatory fish were higher than that in herbivorous fishes.In Lake Dongting,the pollution indexes of Cd,Pb,As in Penaeus vannamei were higher than that in Bellamya quadrata, and higher than that in fishes;the pollution indexes of Hg in fish were higher than that in Bellamya quadrata,and in Penaeus vannamei.
Keywords:Aquatic organisms  heavy metals' content  ecological assessment  Lake Donting
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