Herbicide Toxicity on Fish: Emphasis on Glyphosate & Almix

Herbicidal toxicity on fish with special reference to Glyphosate and Almix was studied based on ultrastructural changes, histopathological lesions, histochemical alterations, changes in enzymatic activities in some organs of teleostean carnivorous fishes e.g., Channa punctatus and Anabas testudineus at the dose of sublethal concentrations 4.0 mg/l and 66.66 mg/l respectively for a period of 45 days under laboratory condition (aquaria) and 750 g/acre and 8 g/acre respectively in the field condition (pond). The degree of toxicity of Glyphosate and Almix in the laboratory condition was much more severe than in the field condition as observed through ultramicroscopic, histological, histochemical and enzymological studies.