Modern state of zooplankton and macrozoobenthos communities of the lake Verhnee Kuito (north Karelia) in the placement of trout farm

Our data analysis has shown that, according to the quantitative development of planktonic fauna in summer and autumn of 2014, the site studied of the lake Kuito can be classified as oligotrophic type. Saprobity indices amounted to 1.48 (June) and 1.35 (September) that corresponds to the class oligosaprobic water bodies. Among the representatives of mass species are northern fauna ( Daphnia cristata Sars, Holopedium gibberum Zaddach, Eudiaptomus gracilis (Sars) and a number of eurytopic organisms ( Mesocyclops leuckarti (Claus), Chydorus sphaericus (O.F. Muller), Bosmina longirostris (O.F. Muller)). According to the level of the quantitative development of macrozoobenthos investigated area can be characterized as oligotrophic.