[目的]为探讨藻毒素对水生模式动物水螅的毒性效应.[方法]以大乳头水螅(Hydra magnipapillata)为试验材料,在不同浓度的MC-LR溶液处理下,观察其急性毒性效应.[结果]MC-LR对水螅24h的半致死浓度(LC50)为12.158 mg/L,48h的LC50为4.029 mg/L,72h的LC50为1.799 mg/L.[结论]较低浓度的MC-LR溶液即可引起水螅的死亡,说明蓝藻水华产生的MC-LR对水螅等一些水生动物造成危害,甚至可致水螅等一些低等水生动物的死亡.该研究可为水体污染的检测、评价提供一定的参考依据.%[Objective] The research aimed to evaluate the toxic effect of microcystin on hydroid (aquatic animal model). [Method] Hydra magnipapillata was the test material. Under the different concentrations of MC-LR solution, its acute toxicity on Hydra magnipapillata was observed. [Result] The half lethal concentration {LC50) of MC-LR on Hydra magnipapillata at 24 h was 12. 158 mg/L, 4.029 mg/L at 48 h and 1.799 mg/L at 72 h. [ Conclusion] Hydra magnipapillnla would die when treated with the low concentration of MC-LR solution. It illustrated that MC-LR produced by cyanobacteria bloom caused the damage on some aquatic animals, and even some low-level aquatic animals died, such as Hydra magnipapillata and so on. The research provided some reference basis for the detection and assessment of water body pollution.
展开▼
