Ecological and Faunistic Analysis of Spirurida Order Nematodes – Zooparasites of Uzbekistan

The purpose of the research is to study species diversity and some features of life history of Spirurida order nematodes - zooparasites of Uzbekistan.

Materials and methods. Specimens of adult Spirurida order nematodes of domestic and wild animals’ population from all regions of Uzbekistan and Karakalpak Republic were collected and studied. Insects, the intermediate hosts of some species of concerned nematodes, were studied according to established methods. Some bioecological features of species Spirurata, Camallanata, Gnathostomata, Filariata suborders are analyzed.

Results and discussion. Modern species diversity of Spirurida order nematodes of Uzbekistan fish, birds and mammals was studied. The order is presented by four species Spirurata, Camallanata, Gnathostomata, Filariata in studied animals. The total amount of studied order species was 145, where 16 species were recorded in fish, 81 species in birds, and 48 species in mammals. Species of Spirurata and Filariata which are widely distributed in desired hosts in Uzbekistan biogeocoenosis are the center of Spirurida fauna. Life cycles of indicated nematodes are carried out involving intermediate and reservoir (= paratenic) hosts. Specimens of Copepoda, Ephemeroptera, Orthoptera, Coleoptera and Diptera belong to the first, carp-like fish belong to the second. Evolution of infection transfer by intermediate host to definitive promotes formation and functioning of different types of parasitic systems. 

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