The evaluation of the effects of environmental factors on natural communities has been one
of the principal approaches in ecology; although, over the past decade, increasing …

In the present study, we describe the diets of the fish assemblages in two streams in the
Maringá region of Paraná that are under the influence of different anthropic impacts. We also …

Riparian vegetation plays an important role in providing energy to small watercourses and
maintaining ecological processes through organic matter input and together with …

In this study, we made an inventory of the stream and headwater ichthyofauna of the left
bank of the Itaipu Dam Reservoir, located in the lower part of the Upper Paraná River basin …

The structure of freshwater assemblages may be driven directly by urbanization or indirectly
by a reduction in environmental heterogeneity (EH). Disentangling the effects of …

Urban activities pollute aquatic ecosystems, and the integrity of organisms such as fish. The
use of cytological techniques, such as the analysis of blood cellular integrity using the …

AIM: The present study analyzed the spatial variation in fish species richness and
composition in streams of the Ivinhema River basin, Upper Paraná basin, determining the …

Urbanization results in major changes in stream morphology, hydrology, and water quality;
the consequences on fish assemblage of Neotropical urban streams remain poorly …

The environmental impacts caused by fish farming can lead to changes in aquatic
ecosystems, especially in fish communities. In this study, we investigated possible changes …

The present study evaluated the water quality of a polluted pond through the analysis of in
vitro mucociliary transport, hematological parameters, and biomarkers of cyto-genotoxicity in …