微囊藻毒素-LR对大乳头水螅的急性毒性研究(英文)

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(Hydramagnipapillata)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对水螅的24h半致死浓度(LC50)为12.158mg/L,48h的LC50为4.029mg/L,72h的LC50为1.799mg/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。

Study on the Acute Toxicity of Microsystin-LR on Hydra magnipapillata

Objective] The research aimed to study the toxicity effect of microsystin on Hydra(aquatic animal model).Method] Hydra magnipapillata was as the experimental material.Under the different concentrations of MC-LR solution,its acute toxicity effect on Hydra magnipapillata was observed.Result] The half lethal concentration(LC50) of MC-LR on Hydra magnipapillata at 24 h was 12.158,4.029 mg/L at 48 h and 1.799 mg/L at 72 h.Conclusion] Hydra magnipapillata would die when treated by the low concentration of MC-LR solution.It illustrated that MC-LR produced by algal blooms 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.