Biota Neotropica 16(3): e20150151, 2016 www.scielo.br/bn ISSN 1676-0611 (online edition) inventory Inventory of the fish fauna from Ivaí River basin, Paraná State, Brazil Augusto Frota1,2,4, Gabriel de Carvalho Deprá1,2, Letícia Machado Petenucci1 & Weferson Júnio da Graça1,3 1Universidade Estadual de Maringá, Coleção Ictiológica do Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Av. Colombo, 5790. CEP 87020-900. Maringá, PR, Brasil. 2Universidade Estadual de Maringá, Programa de Pós-Graduação em Ecologia de Ambientes Aquáticos Continentais, Av. Colombo, 5790. CEP 87020-900. Maringá, PR, Brasil. 3Universidade Estadual de Maringá, Centro de Ciências Biológicas, Departamento de Biologia e Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Av. Colombo, 5790. CEP 87020-900. Maringá, PR, Brasil. 4Corresponding author: Augusto Frota, e-mail:
[email protected] FROTA, A., DEPRÁ, G.C., PETENUCCI, L.M., GRAÇA, W.J. Inventory of the fish fauna from Ivaí River basin, Paraná State, Brazil. 16(3): e20150151. http://dx.doi.org/10.1590/1676-0611-BN-2015-0151 Abstract: We compiled data on fish fauna of the Ivaí River basin from recent specialised literature, standardised sampling and records of species deposited in fish collections. There were 118 fish species of eight orders and 29 families. Of these, 100 species are autochthonous (84.8%), 13, allochthonous (11.0%) and five, exotic (4.2%). The main causes for the occurrence of non-native species are escapes from aquaculture, introduction for fishing purposes and the construction of the Itaipu hydroelectric plant. The predominance of small and medium-sized Characiformes and Siluriformes, including 13 species new to science, accounts for approximately 11.0% of all species and 13.0% of all native species.