TY - JOUR T1 - Diet and trophic structure of the fish fauna in a subtropical ecosystem: impoundment effects JO - Neotropical Ichthyology A1 - Delariva, Rosilene Luciana A1 - Hahn, Norma Segatti A1 - Kashiwaqui, Elaine Antoniassi Luiz SN - 1679-6225 UL - 10.1590/S1679-62252013000400017 VL - 11 Y1 - 2013 PB - Brasil ER -