Abstract
Results obtained in the thematic project FAPESP 2016/14227-5 demonstrated that: 1) the waters of the alkaline lakes of the Pantanal of Nhecolândia systematically present high concentrations of dissolved As (up to 3000 µg L-1); 2) despite the extreme conditions, these lakes are home to an abundant microbial community; 3) higher dissolved As concentrations are generally found in lakes where…