Geographical and biological analysis of the water quality of Bovan lake, Serbia

In this work we performed a complex geographical analysis of the Bovan lake basin, Serbia, as well as an analysis of the physical, chemical and biological parameters of water reservoir during one-year period. The results classify the ecosystem as polytrophic. The degree of saprobity is oligosaprobic - beta mesosaprobic, with a catarobic degree in winter, classifying the water as the 3rd - 4th class of quality. Due to the presence of organic residues, a domination of heterotrophic bacteria in comparison to oligotrophic bacteria is evident. The ability of autopurification is weak. The results indicate the need for continual monitoring of the water quality and environmental protection of Bovan lake.