Microbial processes in proval bay of the lake Baikal

The general number of microorganisms, rate of dark fixation of CO2 and photosynthesis have been defined in the water and coastal sediments of Proval bay of the Lake Baikal. In the spring the total count of microorganisms do not decrease with depth, as well as rates of dark fixation of CO2 and photosynthesis. High values of rate of dark fixation (0.6-1µg С dm-3 d-1) are revealed during intensive water flowering. It can be considered as indicator of high activity of heterotrophic microbial community of water.