Science research workers A. Dashdorj, M.M. Kojov and A.V. Samarina initiated and conducted zooplankton research work in Hovsgol Lake. In 1990, Professor A. Dulmaa published “Biological principal of the lake farming in Mongolia” book and recorded 300 species of zooplankton. Nowadays, the zooplankton research study changed and started to use them for the indicator of the water quality, their importance/role in food chain and the ecological significance besides studying the zooplankton’s species richness.
