Helminth communities of Coregonus lavaretus (Salmonidae: Coregoninae) from Lake Kamennoye (Kostomuksha State Nature Reserve, Russia)

Macroecological models are useful for assessing trends in variability developing monitoring strategies of successional changes and anthropogenic transformation aquatic ecosystems. Modelling the relationships generalised population indices also makes possible to reveal qualitative differences structure parasite component communities. We analysed helminth communities Coregonus lavaretus from a natural water body, Lake Kamennoye (Kostomuksha State Nature Reserve, Russia). The community metazoan parasites C. was represented by nine species. Infection with cestodes (two species), nematodes (three trematodes (one species) reflects presence zooplankton, insects molluscs diet fish, while infection trematode larvae occurs percutaneous penetration. complete ITS1-5.8S-ITS2 cluster rRNA gene sequenced order identify larvae. Metacercariae Diplostomum sp. LIN 5 were most abundant among them. Using populational approaches, we described species richness diversity infra- parasites. composition community, distribution accumulation rate richness, between intensity prevalence. Five (Diplostomum LIN5, Tylodelphys immer, Crepidostomum farionis, Proteocephalus longicollis, Raphidascaris acus) considered as core other helminths satellite conclude that infra-communities play key role formation abundance parasitic lavaretus. Infra-communities younger age groups characterised paucity relatively high parasites, which is probably consequence their diverse diet. In older increases but declines, indicating pronounced dietary specialisation. An analysis characteristics indicates Kamennoye, fairly stable, stability entire lake ecosystem.