Infestation of Alien Cyprinid Fishes with Trematode Opisthorchis felineus Rivolta, 1884 in the Middle Ob River Basin

The data on infestation of muscles of alien fish species with metacercariae of trematode Opisthorchis felineus Rivolta, 1884 in the Middle Ob River basin are presented. It is shown that bleak and bream are susceptible to infestation with the larvae of cat liver fluke Opisthorchis felineus, but the rates of infestation are low even in the hotbed of opisthorchiasis.