SILVA, A. F. DA; CRUZ, C. DA; REZENDE, F. R. L. DE; YAMAUCHI, A. K. F.; PITELLI, R. A. <b&gt;Copper sulfate acute ecotoxicity and environmental risk for tropical fish. Acta Scientiarum. Biological Sciences, v. 36, n. 4, p. 377-381, 3 out. 2014.