实验室培养的端足类日本大螯蜚F_1代对Cd的急性毒性响应  

Acute toxic effects of spiked cadmium on first generation of Grandidierella japonica(Amphipod) cultured in laboratory

作　　者：闫启仑[1] 王睿睿[2] 韩明辅[2] 陈红星[2] 闫吉成[2] 王超[2] 

机构地区：[1]北京师范大学环境学院,北京100875 [2]国家海洋环境监测中心,辽宁大连116023 [3]大连海事大学环境科学与环境工程学院,辽宁大连116026

出　　处：《海洋环境科学》2007年第3期225-228,共4页Marine Environmental Science

基　　金：国家自然科学基金(30370271);国家海洋局青年海洋科学基金重点项目(2002106)

摘　　要：通过将实验室20℃恒温培养端足类日本大螯蜚(Grandidierella japonica)F1代个体暴露于重金属Cd加标海水中的方法,获取日本大螯蜚1周、2周、3周及4周发育阶段的24 h、48 h、72 h、96 h和10 d的死亡率,并求其各时间的半致死浓度(LC50)。实验表明,端足类日本大螯蜚F1代个体对Cd的毒理敏感性较好,但略差于野生自然个体,不同发育阶段半致死浓度不存在很大的差异,2周龄个体最适宜用于毒性检验试验。Through cadmium spiked water-only toxicity test, the mortalities of one-week,two-week,three-week and four-week juveniles of Grandidierella japonica cultured in laboratory at 20℃ constant temperature were obtained at various duration 24h,48h,72h,96h and 10d. The results showed that G. japonica is sensitive to cadmium, but the sensitivity of G. japonica cultured in laboratory is less than the field-collected. The median lethal concentrations for the various developmental stages are slightly different. Two-week juvenile is desirable attribute for the sediment toxicity testing.

关 键 词：端足类 日本大螯蜚 F1代 急性毒性 CD 

分 类 号：R992[医药卫生—毒理学] Q95-3[医药卫生—药学]