Water ecosystems of especially protected natural territories in Karelia

The stability of species composition and structure of hydrobiological communities of ecosystems of Lakes Munozero, Urozero and Kamennoe over the past 40 years marked. Fish of the boreal plain complex in ichthyofauna of lakes dominate (in abundance and biomass). By the level of quantitative development of plankton and benthos Lakes Urozero and Kamennoe can be characterized as oligotrophic water bodies, Lake Munozero - mesotrophic. Marked differences in the number and biomass beyond the natural inter-annual fluctuations are not observed.