Changes in the structure of fish assemblages in streams along an undisturbed-impacted gradient, upper Paraná River basin, Central Brazil
Alesandra Martins Dias and Francisco Leonardo Tejerina-Garro
A new genus and species of Heroini (Perciformes: Cichlidae) from the early Eocene of southern South America
Patricia Alano Perez, Maria Claudia Malabarba and Cecilia del Papa
Spatial choice is biased by chemical cues from conspecifics in the speckeled worm eel Myrophis punctatus
Rodrigo Egydio Barreto, Maria Fernanda Coelho Junqueira, Tan Tjui-Yeuw and Gilson Luiz Volpato
Reproductive tactics used by the Lambari Astyanax aff. fasciatus in three water supply reservoirs in the same geographic region of the upper Iguaçu River
Juliano Pilotto Abelardino da Silva, Adriane Esquivel Muelbert, Elton Celton de Oliveira and Luís Fernando Fávaro
Redescription of Astyanax erythropterus (Holmberg, 1891) (Teleostei: Characiformes: Characidae) from La Plata basin in Argentina
Paula Soneira, Jorge Casciotta, Adriana Almirón, Liliana Ciotek and Pablo Giorgis