THE STATE OF THE BENTHIC FAUNA OF THE LAKE ONEGA BAYS UNDER COMMERCIAL CULTIVATION OF RAINBOW TROUT
Comparative biological characteristics of the benthic fauna of the Svyatuha and Unitskaya Bays of Lake Onega are presented. These water bodies differ in hydrological parameters and are studied poorly. The state of the benthic fauna of the bays, with the cultivation of commercial rainbow trout are determined. The Unitskaya Bay (with benthic biomass 1,22 g/m<sup>2</sup>) should be characterized by the trophic scale as α-oligotrophic water ecosystem. The Svyatuha Bay (with biomass 2,28 g/m<sup>2</sup>) acquires β-oligotrophic lake status with the α-mezotrophic traits.