The use of model organisms is important for basic and applied sciences. Several laboratory
species of fishes are used to develop advanced technologies, such as the zebrafish (Danio …

Tropical river basins have experienced dramatically increased hydropower development
over the last 20 years. These alterations have the potential to cause changes in hydrologic …

Climate change is now recognized as a reality and along with human pressures such as
river fragmentation by dams, amplifies the threats to freshwater ecosystems and their …

Natural river flow provides the conditions required to sustain freshwater ecosystems, and the
greater the departure from the natural regime, the greater the loss of those ecosystems. In …

Low flow velocity disrupts the potential fish migration passages in a reservoir, and causes
reservoirs to become labyrinths for migratory fish. Previous studies showed that fish …

A revision of the genus Salminus, excluding the large-sized species S. brasiliensis and S.
franciscanus, is presented. In addition to the two large-sized species, four additional …

Abstract The Red Devil Cichlid Amphilophus labiatus (Günther 1864), native to Lake
Nicaragua and Lake Managua in Central America, is widely cultivated as an attractive, yet …

Freshwater fish reproduce annually in environments that provide favourable conditions for
spawning and larval survival and growth. Thus, the aims of this study were to use long-term …

The objective of this study was to use larval density data to investigate the temporal
reproductive pattern and use of different biotopes of the Paraná River as areas of …

The emergence of non-native species as a threat to local biodiversity is a pressing concern
that warrants immediate attention. Our study reports the first record of the non-native fish …