The differences between the parasite fauna of Rutilus rutilus L. and Coregonus albula L. are caused by the fact that the former host is more warm-requiring and the conditions in waters of the Arctic Ocean Province of the Circumpolar Subregion are less favourable to it. On the other hand, C. Albula, which is a northern species, lives here under optimal conditions. R. rutilus is bentophytophagous and C. albula planktophagous species, which results in the differences in species composition of their parasites. Also differences in the growth and seasonal and annual changes of their parasite fauna have been observed.

Unique genetic structure of the human tapeworm Dibothriocephalus latus from the Alpine lakes region - a successful adaptation?