Acute toxic effects of ammonia-N and nitrite-N on Procypris rabaudi Tchang.

In this experiment,the effects of nitrite and non-ion ammonia on juveniles of Procypris rabaudi were studied.The results showed that the 96h LC50 with 95 % confidence limits of non-ion ammonia for Procypris rabaudi were 2.32 mg/L(1.72-3.24 mg/L),and the same values of nitrite were 1.06 mg/L(0.79-1.42 mg/L).