TY - SER AU - Franco-de-Sá,J.F.O. AU - Val,A.L. TI - Copper toxicity for Scinax ruber and Rhinella granulosa (Amphibia: Anura)of the Amazon: potential of biotic ligand model to predict toxicity in urban streams KW - ANFIBIO KW - COBRE KW - TOXIDEZ KW - POLUIÇÃO DA AGUA ER -