The most salient current feature of the electric energy sector in Brazil is the pressing need for
expansion. In this context, the hydroelectric resources of the Amazon region are considered …

The biogeographic regions Amazonia and the Pantanal, two areas of high biodiversity
importance, have a link to each other through an ecotone formed by the upstream part of the …

A major threat to river dolphins in Brazil is habitat loss and fragmentation as a result of the
construction of hydroelectric dams. We examine the degree of overlap between the …

The Amazon rivers constitute the largest river basin in the world, with a high level of
biodiversity. The Tocantins River is one of the most important rivers in this region, which has …

In Brazil, measurements of suspended sediment transport have been undertaken regularly
since 1970 at a number of stations located on the main rivers. The database resulting from …

Understanding the hydrosedimentological dynamics of tropical rivers is a challenge in the
Amazon due to its remote and difficult-to-access areas. This study was based on data …

To date, the vast majority of river sedimentology study has relied on two main categories of
observation: direct observation of shallow trenches, cut faces and cores or geophysical …

Radium isotopes have been used to trace nutrient, carbon, and trace metal fluxes inputs
from ocean margins. However, these approaches require a full accounting of radium …

The present study aimed to fit the sediment rating curves in three sampling points of the
Pandeiros River (Brazil), as well as to establish models for estimating the suspended solids …

Abstract The Tocantins River contributes∼ 5% of the total flux of water to the Amazon River
plume in the Atlantic Ocean. Here, we evaluate monthly variability in the composition and …