Aquatic ecosystems of the lower reaches of the Zarafshan River. Diversity and ecological groups of molluscs

Abstract

Aquatic ecosystems of the lower reaches of the Zarafshan River revealed the distribution of 49 species and 2 subspecies of molluscs. They are distributed over aquatic ecosystems as follows: in the lower reaches of the Zarafshan River, 32 species and 2 subspecies are distributed, in the Navbakhorsky fish farm - 22 species and in the Khatyrchinsky fish farm - 15 species, in the Nurbuloksaysky fish farm - 22 species and in the Maidonsoysky - 18 species of mollusks. Their belonging to pelolymnophilic, peloreophilic, rheophilic, crenophilic, phytophilic, madicol, limno-crenophilic and telmatophilic ecological groups was considered.