PARASITIC INVASION OF ALIEN PARASITE <i>NICOLLA SKRJABINI</i> (IWANITZKY, 1928) (TREMATODA, OPECOELIDAE) INTO FISH OF SARATOV RESERVOIR
Infestation analyzes for trematoda Nicolla skrjabini based on research results made during 2009-2014 in 6 fish species of Saratov Reservoir is given. The natural range of parasite is restricted by the rivers of the Azov - Black Sea and Baltic basins. A high incidence of trematoda in the round goby and bighead goby (Teleostei, Gobiidae), and invasive fish species of the reservoir is registered.