Eutrophication has impacted water bodies around the world. Knowledge on how to manage and restore these systems is urgently needed in order to of this work was to analyze the evolution of the eutrophication process in an urban tropical reservoir, using a 15-year time series (with occasional interruptions). The dataset comprised monthly sampling of several environmental variables and the phytoplankton community. We found a continuous process of water quality deterioration, mainly related to increasing levels of nutrient and phytoplankton biomass, as well as decreasing water transparency, even after the installation of a municipal wastewater treatment plant. The ongoing eutrophication resulted in a steep trend of increasing cyanobacteria biomass that turned from a seasonal appearance into more persistent blooms in the most recent decades, while the relative contribution of other algal phyla to total phytoplankton biomass declined, which resulted in a loss of phytoplankton diversity. Phosphorus was the major determinant of the persistent blooms. Even though nitrogen concentrations were very high in this system

The current study monitored the water quality of a tropical reservoir (Vargem das Flores) used to supply potable water to seven cities in the metropolitan area of Belo Horizonte, Minas Gerais, southeast Brazil.

Ocorrência de oocistos de Cryptosporidium spp e cistos de Giardia sp e sua associação com Escherichia coli, Enterococcus spp indicadores bacteriológicos e turbidez em um reservatório tropical Occurrence of Cryptosporidium spp oocysts and Giardia sp cysts and their association with Escherichia coli , Enterococcus spp and turbidity in a tropical reservoir