重金属在珠江口海域两种腹足类动物组织中的分布与累积  

Heavy metals distribution and accumulation patterns in the tissues of two kinds marine gastropods in Pearl River estuary

作　　者：田磊[1,2] 张大文[1] 黄小平[1] 

机构地区：[1]中国科学院南海海洋研究所热带海洋环境动力学重点实验室,广州510301 [2]中国科学院研究生院,北京100049

出　　处：《生态学杂志》2011年第7期1491-1496,共6页Chinese Journal of Ecology

基　　金：中国科学院知识创新工程重要方向性项目(KZCXZ-YW-Q07);国家自然科学基金项目(41076069;40776086);908专项(GD908-01-03;GD908-02-02)资助

摘　　要：通过测定珠江口海域典型腹足类动物习见蛙螺(Bursa rana)和棒锥螺(Turritella bacillum)各组织器官中重金属(Cu、Zn、Pb、Cd和As)的含量,研究了腹足类动物重金属的组织分布及累积模式。结果表明:肠与肝脏重金属累积模式差异较大,腮在两种螺累积重金属的过程中可能扮演着重要角色,性腺是重金属在螺体的重要累积器官;人体通过食用习见蛙螺和棒锥螺肌肉摄入的重金属虽未超过国际食品法典委员会提出的最大容许摄入量,但重金属联合毒性的潜在危害值得引起高度关注。Based on the measurements of Cu,Zn,Pb,Cd,and As concentrations in various tissues of Bursa rana and Turritella bacillum from the Pearl River Estuary,this paper studied the distribution and accumulation patterns of the heavy metals in the tissues of the two marine gastropods in the estuary.Our results revealed that hepatopancreas and intestine had greater differences in the enrichment patterns of the heavy metals,gills could play an important role in the enrichment of the heavy metals,and gonad was an important tissue for the enrichment of the residual heavy metals.Though the heavy metals concentrations in human body via eating the two gastropod species did not exceed the tolerable intake dose proposed by the Codex Alimentarius Commission,more attention should be paid to the potential risks of the co-toxicity of the heavy metals to human health.

关 键 词：重金属 海洋腹足类 组织分布 累积模式 珠江口海域 

分 类 号：X174[环境科学与工程—环境科学]