Infestation of fish with the alien parasite Nicolla skrjabini (Iwanitzky, 1928) (Trematoda, Opecoelidae) in the Saratov Reservoir

Abstract

The analysis of infestation of six fish species with the alien trematode Nicolla skrjabini is presented on the basis of the results of investigations conducted in 2009–2014. The natural range of the parasite is restricted to rivers of the Azov-Black Sea and Baltic Sea basins. A high incidence of maritae of trematodes was recorded in round goby and bighead goby (Teleostei, Gobiidae) and in introduced species.