Composição e distribuição longitudinal da ictiofauna do rio Parati-Mirim (RJ) e aspectos sobre a reprodução das principais espécies

Abstract

Composition and longitudinal distribution of the ichthyofauna from Rio Parati-Mirim, a coastal stream in Southeastern Brazil, were verified. Fieldwork was realized bimonthly at 4 stations along the stream. Twenty-two species were registed and their constance and relative abundance data were analized. The population structure studied by the distribution of lenght classes was presented to 9 species. The duration and timing of the period of reproduction of the main fish species were determined.