Present condition of zooplankton and macrozoobenthos communities of lake Segozero in areas of trout farm location

Our data analysis has shown that, according to the quantitative development of planktonic fauna in summer and autumn of 2013, the sites of the studied Segozero Lake can be classified as а-mesotrophic (site number 5) and oligotrophic types (site number 6). Saprobity indices amounted to 1,47 (site number 5) and 1,41 (site number 6), which corresponds to the class of oligosaprobic water bodies (pure natural water). According to the level of macrozoobenthos, quantitative development of investigated areas of Segozero Lake can be characterized as oligotrophic ones.