River waters near to agricultural sites in the Northeastern Brazil (Maranhão State) cause genetic damage in Nile Tilapia (Oreochromis niloticus)

S. Castro, M.Luvizotto-Santos, R.R. F. Pereira, S.R. Moreira, V.V. Castelo-Branco, P.L. M. Silva, V.F. Carvalho-Costa, L.