Dubey, V.K., Sarkar, U.K., Pandey, A. and Lakra, W.S. 2013. Fish communities and trophic metrics as measures of ecological degradation: a case study in the tributaries of the river Ganga basin, India. Revista de Biología Tropical. 61, 3 (Sep. 2013), 1351–1363. DOI:https://doi.org/10.15517/rbt.v61i3.11964.