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用甲氰菊酯对罗氏沼虾幼体进行急性毒性试验。在30℃水温条件下,甲氰菊酯对罗氏沼虾Z1,Z2,Z4,Z6,Z8幼体的24hEC50分别为0.050,0.040,0.035,0.030,0.028μg/L,在26℃条件下,分别为0.080,0.069,0.060,0.050,0.035μg/L随着发育期的递进,幼体对甲氰菊酯变得更加敏感,对于同一期的幼体来说,甲氰菊酯的毒性随水温的升高而增强。