The paper presents the first results of a comprehensive study of plankton communities in Lake Murakanskoye, located in the National Park “Onezhskoye Pomorie”. The qualitative and quantitative indicators of phyto- and zooplankton are shows, and the structure of the communities is considered. It was revealed that plankton communities in the summer of 2023 were characterized by a poor species composition and low overall quantitative development — the average biomass of phytoplankton was 0.34 ± 0.09 g/m, zooplankton — 509.1 ± 112.4 mg/m. The main background of zooplankton in terms of quantitative composition is copepods, in the phytoplankton composition diatoms and green microalgae are prevailed. Based on the plankton development indicators, the lake is characterized as oligotrophic.
Iu.V. Malkhasian (Wed,) studied this question.