Finding eggs of the nematode Dioctophyme renale (Goeze, 1782) (Nematoda, Dioctophymidae) in the North of Western Siberia in the late Holocene

A parasitological analysis was carried out on 29 samples of dog coprolites, soil and manure obtained from the cultural layer of the Mangazeya settlement (66°42'N, 82°16'E), which dates back to 1601–1670s (end of the late Holocene). For the first time in the north of Western Siberia, eggs of the nematode Dioctophyme renale (Goeze, 1782), which infects the kidneys of carnivores, were found in coprolites of dogs (Canis familiaris L., 1758). Currently, this species is not recorded in the helminth fauna of the region. The giant kidney worm could have entered the region with dogs brought by the Russian population from European Russia during the development of Siberia, however, the introduction of the helminth did not lead to the formation of a new stable natural focus of dioctophymiasis.