On June 16-18, 2017, we hosted at the Station the main contractors of the grant: “Mechanisms that affect the flow of matter and energy from phytoplankton to zooplankton in freshwater ecosystems”, which is conducted at Hydrobiological Station. The meeting was attended by: Jolanta Ejsmont-Karabin (Nencki Institute of Experimental Biology PAS), Maciej Karpowicz (University in Bialystok), Zoja Gorelysheva (Republican Center for Radiation Control and Environmental Monitoring of the Republic of Belarus), Varos Petrosyen and Irina Feniova (Severtsov Institute of Ecology and Evolution), Piotr Dawidowicz (Warsaw University), Piotr Ignaciuk, Mikhail Gladyshev (Institute of Biophysics, SB RAS), Ramesh Gulati (Nederlands Institute of Ecology) (TJ)