B chromosome and NORs polymorphism in Callichthys callichthys (Linnaeus, 1758) (Siluriformes: Callichthyidae) from upper Paraná River, Brazil

by Konerat,Jocicléia Thums, Bueno,Vanessa, Baumgartner,Lucas, Martins-Santos,Isabel Cristina, Margarido,Vladimir Pavan
Published 2014

Evidence of the color pattern variation in populations of Gymnotus pantanal (Gymnotiformes) from three streams in the upper Paraná River basin, Brazil

by Frana,Vitor André, Graça,Weferson Júnio da, Gubiani,Éder André, Konerat,Jocicléia Thums, Margarido,Vladimir Pavan
Published 2011