MACROPHYTES OF LAKE PESTROYE OF KYZYLZHAR DISTRICT OF THE NORTH-KAZAKHSTAN REGION FOR ASSESSING WATER QUALITY BY BIOINDICATING METHODS OF RESEARCH

Abstract

The constant increase in the variety of pollutants complicates the chemical methods for analyzing pollution of water bodies every year, which also require large financial costs, therefore, to determine the presence of pollutants in ecosystems, biological indication has become increasingly used, which is an operational, informative and reliable diagnostic method, less expensive and labor intensive compared to chemical methods. North Kazakhstan region has large areas of water resources that are the habitat for many organisms, and is also used as drinking water by the population, for agricultural needs - the assessment of the suitability of a reservoir for various needs is very important. The article presents the results of a study of the lakes of the Kyzylzhar district with bioindication research methods. The taxonomic composition of macrophytes was established. The species similarity of vegetation was determined using the Jacquard coefficient. An assessment is made of the water quality of the studied lakes based on the floristic composition of hydromacrophytes.