Pisces, Siluriformes, Ictaluridae, Ictalurus punctatus (Rafinesque, 1818): first record in middle Paranapanema river reservoir, aquaculture and exotic species dispersion

Abstract

This is the first report of Ictalurus punctatus in the middle Paranapanema river basin; the occurrence of this species may be associated with the expansion of pisciculture in cage farms in the Brazilian territory as a whole.