【摘要】 对采自长江口九段沙湿地的雌性和雄性中华绒螯蟹身体肌肉、肝胰腺和性腺中重金属和有机氯农药的含量分布进行了研究。结果表明,雌蟹肝胰腺和性腺对Pb、Cd、Cr、As的富集能力较强,而雄蟹肝胰腺对Cd、As的富集能力较强。DDTs和BHCs的个体富集能力性别差异不明显,但是表现出肝胰腺>性腺≥肌肉的器官分布差异。BHCs中β-BHC的异常高值和α-BHC与γ-BHC的比值小于3,说明中华绒螯蟹体内的BHCs具有较长的环境存留时间,并可能有林丹的新近输入。(DDE+DDD)/DDT的比值远大于1,说明该地区中华绒鳌蟹洄游和生活的水体环境中没有新的DDTs污染源。更多还原

【Abstract】 Concentrations and distributions of heavy metals and organochlorine pesticides were determined in the anatomical parts(body muscle,liver and pancreas,gonad) of adult male and female mitten crab,collected from Jiuduansha intertidal wetland of Yangtze River Estuary in December 2004.As the results indicated,gonad and liver-pancreas of adult female mitten crab showed higher bioaccumulative abilities on Pb,Cd,Cr and As,while for the male crab,the liver-pancreas part had higher bioaccumulative ability on Cd and As.The male and female crab did not show different accumulative abilities on DDTs and BHCs,but for the anatomical parts,the accumulative abilities on these two kinds of organochlorine pesticides followed the rules of liver-pancreas > gonad ≥body muscle.On average,β-BHC occupying the most part of BHC,and the ratios of α-BHC/γ-BHC smaller than 3,together indicated that the aquatic environment for mitten crab living has long been exposed to BHCs pollution,and newly polluted by lindane.The ratios of(DDE+DDD)/DDT were much larger than 1,which indicated that the mitten crab was not newly polluted by DDTs.更多还原