The aim of this study was to verify whether taxonomic and functional composition of stream
fishes vary under three different preservation conditions of riparian zone: preserved (PRE) …

This study was carried out to develop and apply a fish-based biotic integrity index to assess
lowland streams in a highly deforested region of the Upper Paraná River basin. Fifty-six first …

In the Neotropics, the effect of agriculture on freshwater habitats is still poorly understood,
particularly with respect to sugarcane expansion to meet increased ethanol demands. The …

Considering th e morphology, diet and spatial distribution of Satanoperca pappaterra and
Crenicichla britskii (Perciformes: Cichlidae) in the Upper Paraná River floodplain (Brazil) …

Species interactions can modulate the diversity and enhance the stability of biological
communities in aquatic ecosystems. Despite previous efforts to describe fish interactions in …

Ecological speciation is well-known from adaptive radiations in cichlid fishes inhabiting
lentic ecosystems throughout the African rift valley and Central America. Here, we …

Feeding behavior and habitat use of two species of pike cichlids, or mataguaros,(Crenicichla
lugubris and C. aff. wallacii) were studied in the río Cinaruco, a floodplain river in the …

A multimetric, fish-based Index of Biotic Integrity (IBI) was developed and tested to assess
the ecological status of streams with different riparian conditions in the Piracicaba River …

Ontogenetic diet shifts were compared among five sympatric pike cichlids Crenicichla in a
subtropical South American stream using stable C and N isotopes and tissue stoichiometry …

O objetivo deste estudo foi caracterizar a dieta das espécies de peixes mais abundantes no
córrego Franco (Ivinhema, MS). Os peixes foram capturados mensalmente, no período de …