农业环境科学学报Issue(9)：1640-1645,6.DOI:10.11654/jaes.2015.09.002
Cd2+对伸展摇蚊及黄色羽摇蚊幼虫的毒性效应研究
Toxic Effects of Cadmium on Larvae of Chironomus riparius and Chironomus flaviplumus
摘要
Abstract
Chironomidae are important organisms indicating the quality of water environment. Here acute(96 h)and chronic(20 d)toxicity experiments were carried out to determine the toxicity of Cd2+on the larvae of Chironomus riparius and Chironomus flaviplumus, following the standard methods in the guideline GB/T 27859—2011(Chemicals-Sediment-water chironomid toxicity test:Spiked sediment method). The mortality, emergence rate, emergence time, and mentum deformity rate were observed. The 96 h LC50 values of cadmium to three instar C. riparius and C. flaviplumus larvae were 22.39 mg·L-1 and 33.41 mg·L-1, respectively. The 20 d LC50 values of Cd to C. riparius and C. flaviplumus were correspondingly 226.26 mg·kg-1 and 351.84 mg·kg-1. Their survival rate and mentum deformity rate were significantly positive correlated to Cd2+concentration(P<0.01). Emergence time of C. riparius was not significantly affected by Cd2+in the sediment, whereas that of C. flaviplumus was significantly positively correlated to Cd2+concentration(P<0.05). However, the mortality and mentum de-formity rates indicated that C. riparius was more sensitive to cadmium than C. flaviplumus.关键词
伸展摇蚊/黄色羽摇蚊/Cd2+/毒性试验/LC50Key words
Chironomus riparius/Chironomus flaviplumus/Cd2+/toxicity test/LC50分类
资源环境引用本文复制引用
邓鑫,周祥,刘志红,李晓军,台培东..Cd2+对伸展摇蚊及黄色羽摇蚊幼虫的毒性效应研究[J].农业环境科学学报,2015,(9):1640-1645,6.基金项目
国家科技重大专项（2012ZX07505-001）；国家自然科学基金项目 （）
