摘要
根据2006年5—7月贝类体内重金属含量和海洋环境背景值的调查资料分别分析了海州湾、吕泗、嵊泗和舟山海产贝类重金属与环境中重金属含量之间的关系。结果表明:影响贝类体内重金属Hg,Cd和Pb含量的主要因素是水体中的重金属含量而不是沉积物中的重金属含量;重金属在贝类体内的富集程度由高至低依次为Cd>Hg>Pb;不同贝类对重金属富集效果比较,紫贻贝(Mytiluse dulis)对重金属富集效果最为明显,红螺(Rapana bezoar)对重金属富集效果较其它物种较轻。
Based on the data from investigation in the Haizhou Bay, Lvsi, Shengsi and Zhoushan areas during May-July, 2006. We studied relationship of the marine environment with shellfish quality on heavy metals from three aspects, and environmental conditions affecting on the heavy mental change in shellfish; enrichment of different heavy metals in shellfish and enrichment of different species absorbing heavy metals. According to the result of our study, it is water heavy metals but not sediment heavy metal that affect the level of Cd, Hg and Pb in shellfish body. The level of Pb enrichment in shellfish body was clearly lower than the level of Cd whereat that of Hg was medium. Diffusion of Cd from water to shellfish body produced higher level of Cd enrichment in the shellfish body. Comparing the enrichment of heavy metals among different species, Mytilus edulis showed the most clearl enrichment whereas Rapana bezoa showed the least.
出处
《海洋通报》
CAS
CSCD
北大核心
2007年第5期117-120,共4页
Marine Science Bulletin
基金
国家"十五"科技攻关计划(2001BA603B)
2005年度上海市财政项目.
关键词
贝类
重金属
生物富集
水质
沉积物
Shellfish
heavy metal
enrichment
water quality
sediment
