Toxicity of cypermethrin to Daphnia magna HB.
The acute toxic effect of the pesticide cypermethrin to Daphnia magna HB was examined. D. magna HB was exposed to cypermethrin at concentrations of 0, 1, 3, 5, 7, and 9 mg/L for 24 h. Data showed that the 24 h-LC50 of cypermthrin on D. magna HB was 4.81 mg/L. In contrast, the 24 h-LC50 of K2Cr2O7 (the national standard toxicant) to Daphnia magna was 0.38 mg/L in the current study. Results indicated that the Daphnia magna was very sensitive to pesticides. In addition, the effects of the culture condition (such as hardness, temperature and DO etc.) on Daphnia magna HB was also studied.
Sheng
Xiu-Mei
XM
College of Life Science, Central China Normal University, Wuhan 430079, China.
Xiong
Li
L
Wu
Zhen-Bin
ZB
Tang
Hong-Feng
HF
Liu
Tao
T
Wang
Yuan
Y
D000818:Animals; D003621:Daphnia / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D007306:Insecticides / Q000633:toxicity*; D007928:Lethal Dose 50; D016014:Linear Models; D011722:Pyrethrins / Q000633:toxicity*; D013696:Temperature; D013997:Time Factors
D007306:Insecticides; D011722:Pyrethrins; C017160:cypermethrin