The Influence of Abiotic Factors on the Biodiversity and Distribution of Bivalves in the Aquatic Ecosystems of the Sangzar River, Basin and Springs

In this article, in the process of studying the influence of abiotic factors on the biological diversity and distribution of species of bivalve molluscs in the water ecosystems of the Sangzar river, basin and springs, the density of Kuiperipisidium genus compared to species belonging to the genus Euglesia in Qamishsay springs was determined. The molluscs distributed in Eyzbulok formed 2 different ecological groups, 40% of 2 types of peloreophiles (Euglesa hissarica, E. turanica) were distributed in underwater muds, and 60% of 3 types of crenophiles (Kuiperipisidium terekense, K. sogdianum, K. behningi) were found in springs. 5 species of bivalve molluscs, belonging to the families Euglesidae and Pisididae, are distributed in springs in the stream, 3 species belonging to the family Pisididae are widespread euribionts and 2 species belonging to the family Euglesidae are stenabiont species. Kuiperipisidium terekense, Kuiperipisidium issykkulense and Kuiperipisidium sogdianum species belonging to the Kuiperipisidium genus of the Pisididae family are distributed in Tuyuqsoy springs. The density of these species is high in the springs, and their density is low in the ditches. For example, the density of Kuiperipisidium terekense 2.8, Kuiperipisidium issykkulense 2.9 and Kuiperipisidium sogdianum 3.1 per 1 m2 in springs and springs, while Kuiperipisidium terekense 2.1, Kuiperipisidium issykkulense 1.9 and Kuiperipisidium sogdianum has been found to spread from 1.9.