Reservoirs have been built in almost all of the hydrographic basins of Brazil. Their purposes
include water supply for cities, irrigation and mainly, generation of electricity. There are more …

Brazil has more than 700 large reservoirs distributed in all of the major river basins of South
America. Most dams were constructed to produce electricity. Although these reservoirs favor …

Abstract In South America, the introduction of peacock-bass (Cichla), a voracious predator
fish, has been an underestimated threat for native fish communities. Although this predator is …

Habitat homogenization is one of the most important drivers of change in riverine fauna.
Therefore, the aim of this study was to determine whether habitat homogenization influences …

Landscape and site-scale data analyses aid the interpretation of biological data and thereby
help us develop more cost-effective natural resource management strategies. Our study …

A fish survey in 35 stream reaches (from 1st to 3rd order) with physicochemical and habitat
assessment in the São José dos Dourados system, southeastern Brazil, was conducted …

Studies investigating fish/macrophyte associations in the neotropics are rare. Aquatic
vegetation enhances structural complexity of the environment, potentially influencing …

This research characterised feeding ecology of fishes associated with patches of Egeria
najas and Egeria densa, two submerged macrophytes, in Rosana Reservoir, Upper Paraná …

ABSTRACT The Paranapanema River is a major tributary of the upper Paraná river basin.
Eleven hydropower dams regulate its main course, but no study has investigated fish …

The presence of aquatic macrophytes is a key factor in the selection of habitats by fish in
floodplain lakes because these plants enhance the physical and biological complexities of …