1 Institute of Zoology, Azerbaijan National Academy of Sciences
2 Institute of Bioresources, Nakhichivan Branch of Azerbaijan National Academy of Sciences
The article presents information about macrozoobenthos of some reservoirs of Nahichevan AP. During the study 135 species belonging to 18 taxonomic groups were revealed. From them 60 species belong to the Diptera, 19 species to Coleoptera, 16 species of woodlice. The biomass of macrozoobenthos of the reservoirs varied within 0.46-1.71g/m2, and the number within 70-778 spec./m2. Maximum development was registered in the lake Batabat No 2, and the sanitary and ecological state of the water bodies was studied as well.