Effect of hydrochemical indicators of Sangzor river water on mollusk population indicators

Abstract

The article presents information about the influence of hydrochemical parameters of Sangzor river water on mollusk population parameters. The hydrochemical indicators of the water of the Sangzor River are oil and oil products, the level of mineralization is not higher than REM, and the water temperature, flow speed, clarity are favorable for bivalve mollusks of the families Unionidae and Sorbiculidae and bubble growth was determine to be high. Its downstream is in the water after the city of Jizzakh (Khairabad) oil and oil products, mineralization level is higher than REM, pollution of water environment factors, weight, shell length, height, and bubble growth of bivalve mollusks of Unionidae and Sorbiculidae families were determined to be small, affecting the growth of shells to a certain extent as limiting factors.