The exact size of the wetland area of South America is not known but may comprise as much
as 20% of the sub-continent, with river floodplains and intermittent interfluvial wetlands as …

On 25th January 2019, the tailings dam of the Brumadinho iron mine operated by Vale S/A
failed catastrophically. The death toll stood at 259 and 11 people remained missing as of …

Fishery ecology conservation in South America is a pressing issue. The biodiversity of
fishes, just as with all other groups of plants and animals, is far from fully known. Continuing …

Stretching more than seven million square kilometers, the Amazon River basin is the largest
river basin in the world and discharges about one-sixth of all freshwater from the continents …

The São Francisco River is strategically important due to its hydroelectric potential and for
bringing the largest water body of Brazilian Semiarid region, supplying water for irrigation …

Heavy metals are considered major pollutants of aquatic environments due to the difficulty of
metabolization and the bioaccumulative potential in tissues of aquatic organisms, especially …

Abstract The La Plata basin is the second largest basin of South America and has supported
important river fisheries for more than a century. In this paper, we evaluate for the first time …

We used metadata on nine reproductive traits of 67 species of Brazilian iteroparous,
oviparous, teleost freshwater fishes to test phenotypes associations to discriminate species …

Melanomacrophage centres (MMCs) are formed by macrophage aggregates containing
pigments such as hemosiderin, melanin and lipofuscin. MMCs are found in animals such as …

Surubim, Pseudoplatystoma corruscans, is the most valuable commercial and recreational
fish in the São Francisco River, but little is known about adult migration and spawning …