ACUTE TOXICITY OF THE HERBICIDE GLYPHOSATE TO FISH

The objective of this study was to evaluate the acute toxicity of three commercial products with the herbicide glyphosate as active ingredient on two species of freshwater fish: auratus L. , and Oncorhynchus mykiss W. Static bioassays were used for toxicity testing. The experimental concentrations of the commercial herbicides were more high than the recommended doses to control weeds, showing a very low toxicity on both species of fish, with the experimental conditions used. Probably the current use of this herbicide would not be too hazardous to these fish species.