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TEMPORAL AND SPATIAL CHANGES OF LIMNOLOGICAL VARIABLES FROM MONJOLINHO RESERVOIR (UFSCAR CAMPUS). This study described changes of limnological variables (suspended material, turbidity, temperature, dissolved oxygen, BOD5, pH, organic and inorganic carbon, electrical conductivity, total organic nitrogen, nitrate, nitrite, ammonium and total and dissolved phosphorous) of Monjolinho Reservoir and Monjolinho River, both located inside the UFSCar campus. Water was collected superficially (each two weeks) in three sampling station. We observed a temporal variation, mainly due to the rain, for the variables: suspended material, turbidity, temperature, inorganic and organic carbon, nitrate, ammonium and total organic nitrogen as well as total and dissolved phosphorous. Dissolved oxygen, pH and nitrite showed differences in the spatial pattern between the two studied river sites. The BOD values were different between the upstream river and the reservoir sites. In the sampling sites, water physical and chemical variables showed values in conformity with the legislation, although, based on phosphorus total concentrations, a trophic status index classifies the studied system as eutrophic. Besides, others studies showed an environmental degradation towards the river mouth, due to anthropogenic cause.

Alterações Espaciais e Temporais de Variáveis Limnológicas do Reservatório do Monjolinho (Campus da UFSCAR)