INFESTATION OF LOWER CRUSTACEANS (COPEPODA, CLADOCERA) WITH MICROSPORIDIANS (MICROSPORIDIA) IN WESTERN SIBERIA
The search for intermediate hosts of microsporidians of bloodsucking mosquitoes of the family Culicidae with complicated two-host developmental cycles in Western Siberia resulted in revealing of 19 microsporidian species in crustaceans. Crustacean microsporidians are represented as by specialized parasites of crustacean, being or being not related to microsporidians parasitizing mosquitoes, and by parasites of mosquitoes having only a part of their complicate life cycle in crustaceans. Sequencing of ssrDNA of microsporidins from copepods had demonstrated that <i>Acanthocyclops venustus</i> Norman et Scott can be an intermediate host of <i>Amblyospora rugosa</i> Simakova et Pankova, 2005 from mosquitoes <i>Oc. cataphylla</i> Dyar., and <i>Acantocyclops reductus</i> (Chappuis) can be an intermediate host of <i>Trichoctosporea pygopellita</i> Larsson, 1994, a parasite of the mosquito <i>Oc. excrucians</i> (Walker). According to their fine structure, microsporidians from <i>Daphnia</i> Muller belong to the genera <i>Bervaldia</i> Larsson, 1981 and <i>Agglomerata</i> Larrson et Yan, 1988. The infestation rate in natural population of crustaceans was low, constituting about 2 %. The maximal infestation rate was observed in temporary reservoirs since late April till early May.