Distribution and ecology of unionidae and corbisulidae families in the lower course of the Zarafshon river
Abstract
For the first time, we found out that 10 species are distributed in the lower reaches of the Zarafshan River in Navoi region, 7 species near the Tudakol reservoir, and 4 species after Bukhara city. There are 2 species in rocky biotopes of the river, 5 species in sandy areas, and 8 species in muddy areas. The species Sinanodonta gibba, Sinanodonta ruerorum and Sinanodonta orbicularis were recorded for the first time in the river biotopes. Bivalve molluscs belonging to the peloreophile and rheophile ecological groups are distributed in the coastal water ecosystems of the Zarafshan River. It was determined that peloreophiles make up 80% and rheophiles make up 20%. The abundance of peloreophiles has influenced the abundance of muddy biotopes suitable for mollusks in this area.
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