Expedition on board RV "I.D. Papanin", July 11-16, 2018, Southern Baikal (shallow-water zone) and Maloye More.

The expedition was carried out within the framework of the programs "Studies of Evolutionary, Ecological and Molecular-Biological Aspects of Silica-Dependent Chromista as Main Members of Silica Cycle in Aquatic Ecosystems" and "Assessment and Forecast of Ecological State of Lake Baikal and Adjacent Territories under Conditions of Anthropogenic Impact and Climate Change" on board RV "I.D. Papanin" on July 11-16, 2018 in the shallow-water zone of Southern Baikal and Maloye More. The aim of the expedition was to study growth dynamics of algal and bacterial communities in Maloye More Strait and littoral area of Southern Baikal using suc methods as microscopy, cultivation and molecular biology. The researchers collected 64 water samples and 15 phytoplankton samples for the analysis of chemical characteristics of water, its temperature and transparency, total number of bacteria and cultivated heterotrophs, species composition and abundance of phytoplankton and for cultivation of diatoms and obtaining of total DNA of microalgae and bacteria. They also analyzed spatial distribution of summer phytoplankton species in the 0-7 m layer based on microscopic analysis of quantitative net samples with the dominance of diatoms Synedra acus and Aulacoseira baicalensis and dinoflagellates Ceratium hirundinella and Anabaenaand.