Abstract The Araguaia River floodplain is an important biogeographic boundary between the
two largest South American biomes: the Cerrado (Brazilian Savanna) and the Amazon …

Mercury (Hg) is a chemical element widely present in the Earth's crust. However, its high
toxicity and ability to accumulate in organisms and biomagnify through food chains …

Freshwater ecosystems are essential to human and wildlife survival. They harbor a wide
biodiversity that contributes to ecosystem services. In the ecosystem of the Brazilian …

The present study assesses mercury biomagnification and the trophic structure of the
ichthyofauna from the Puruzinho Lake, Brazilian Amazon. In addition to mercury …

Seasonal flooding changes chemical and morphometric characteristics of the tropical
floodplain lakes, affecting stratification which can influence mercury dynamics. We …

Total mercury (Hg) and methylmercury (MeHg) circulation in a connected river-floodplain
system composed of two black water (a small forest river, igarapé, and Cuniã Lake) and a …

Total mercury (T-Hg) was determined in fish and wild animal meat consumed in indigenous
villages in the Brazilian Amazon region, where there is no history of gold mining. The …

Floodplain lakes are ecosystems characterised by annual flood and dry cycles. Fish ecology
is influenced by the flood pulse due to the large influx of allochthonous food resources and …

Cr contamination is a growing concern in the Amazon. Along with the rise of cattle farming in
the region, tanneries are becoming more common and threatening environmental quality …

Floodplain systems are widespread in the Amazon and several studies have evaluated
mercury biogeochemistry in these systems. The Amazon region can be considered a …