Density, Biotope Distribution and Ecological Groups of Bivalve Mollusks in the Аccess Сhannels to Tuyatortar and Jizzakh Reservoirs

10 species and 2 subspecies of bivalve mollusks were found in the Tuyatortar channel, 8 species and 2 subspecies were found in the Jizzakh channel. Eight species of peloreophiles <em>(Corbicula cor, S. purpurea, S.fluminalis, Corbiculina tibetensis, C.ferghanensis, Sinanodonta gibba, S.orbicularis, S. puerorum)</em> are commonly met in Tuyatortar channel, accounting for 67% of the total mollusks. Rheophiles include 2 species <em>(Colletopterum syreum sogdianum, C. bacterianum)</em> (16.5%), 2 species <em>(Colletopterum ponderosum volgense, Colletopterum kokandicum)</em>, pelolemnofil accounts for 16.5%.

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