Khudyy O. The condition of ichthyofauna in the Dnister reservoir as influenced by anthropogenous factors

The object - ichthyofauna of the Dnister reservoir . The purpose of work consist in finding-out of features of the structurally functional organization of the Dnister reservoir ichthyocoenosis in conditions of complex economic use of the given reservoir. Methods - ichthyologecal. Results - features of transformation ichthyofauna different sites of the river Dnestr owing to action of hydraulic engineering construction, salt pollution and introduction has been investigated. As a result of the lead researches the species structure of ichthyofauna the top and average Dnestr (dams Dnestr hydroelectric power station are higher) is specified. Two species new to region - Pseudorasbora parva (Schlegel) and Gasterosteus aculeatus Lіnnaeus, dams earlier unregister above in the city of Novodnestrovsk are revealed. Morphological variability bream, roach and other mass species of the fishes, caused by stopping of drain in conditions of hydroecosistem of the Dnestr current foothill site is investigated. Models of linear both weight growth bream and roach from the Dnister reservoir are created. Branch – ichthyology, hydroecology.