Peacock bass (Cichla spp.) originates from the Neotropical environments of Brazil and
Venezuela but, through trade and smuggling for aquarium keeping, sport fishing and …

The Paraíba do Sul river is located in one of the most developed part of Brazil and receives
many organic and industrial effluents directly affecting the ichthyofauna. Concentration of …

This study aimed to evaluate environmental influences on fish distribution and to assess the
extent to which concepts in river ecology accommodate levels of spatio-temporal …

Gill anomalies in three common fish species of different taxonomic order, habitat dwelling
and feeding habits (one C haraciformes, O ligosarcus hepsetus; one S iluriformes, H …

Streams are under environmental pressures acting at different scales that influence the
ecological organisation of their fish assemblages. However, the relative influence of the …

The pike-characin Oligosarcus is a group of Characidae composed of 22 species, which
have mostly allopatric distributed species in southeastern South America and sympatric …

We test the hypothesis that predatory benthic fishes play a similar ecological role in different
estuaries by displaying the same feeding strategy. We used whitemouth croaker …

We determined in this study the habitat preferences of seven native fish species in a
regulated river in Southeastern Brazil. We tested the hypothesis that fishes differ in habitat …

Foram analisados a relação peso-comprimento e o fator de condição de Oligosarcus
hepsetus no Rio Grande do Parque Estadual da Serra do Mar-Núcleo Santa Virgínia, São …

As estruturas teciduais do trato gastrintestinal de Pimelodus maculatus La Cepède, 1803,
do reservatório de Funil (22º30'-22º35'S; 44º35'-44º40'W) foram descritas através das …