Dynamics of hydrological and hydrochemical indicators of the Ust-Kamenogorsk reservoir in 2020-2024
DOI:
https://doi.org/10.62687/NSJ.1.1.2025.7Keywords:
Ust-Kamenogorsk Reservoir, hydrological regime, hydrochemical indicators, water quality, biogenic substances, mineralization.Abstract
Abstract. This article presents the results of studies on the hydrochemical and hydrological regime of the Ust-Kamenogorsk Reservoir over the past five years. The aim of the study was to assess the dynamics of hydrological and hydrochemical indicators of the Ust-Kamenogorsk Reservoir during 2020-2024 in order to identify trends in water quality changes and habitat conditions for hydrobionts. The research was based on systematic observations of water level fluctuations and laboratory analyses of water samples collected from the upper, middle, and lower parts of the reservoir during the spring-summer seasons. The study included measurements of physicochemical parameters (pH, dissolved oxygen, CO₂, organic matter, biogenic elements, and mineralization) using standard hydrochemical analytical methods.
The results showed that the average annual water level varied slightly over the five-year period, indicating a stable hydrological regime. All parameters complied with the fishery water quality standards. A slight increase in oxygen content and stabilization of biogenic compounds was observed. Thus, it was established that the hydrological and hydrochemical regimes of the Ust-Kamenogorsk Reservoir remain stable, providing favorable conditions for the reproduction and habitation of aquatic organisms, confirming its importance as a fishery water body.
