Glyphosate (N-phosphonomethyl glycine) is a broad spectrum systemic herbicide used extensively in weed control. The present study was designed to evaluate the toxicity effect of glyphosate on 300 post juveniles (50g±0.96g; 22cm±0.02) of Clarias gariepinus (Burchell, 1822) after exposure to acute concentration levels of 31, 33, 35, 37 and 39 mg glyphosate/L of clean water. The experiment was completely randomized as each treatment were all replicated thrice. Glyphosate toxicity (96 hr LC50) ...
