Akmukhanova N.R., Bolatkhan K., Bauyenova M.O., Sadvakasova A.K., Zayadan B.K. Bioindication on the basis of microalgae of recreational areas of Lake Alakol

Al-Farabi Kazakh national university, Kazakhstan, Almaty

Abstract

One of the most representative indicators of the state of aquatic ecosystems is the structure of phytoplankton, the structural characteristics of which are widely used in the biomonitoring system. The object
of study was the salt Alakol lake near the villages of Akshi, Koktuma, Kabanbay and Koktal. These areas,
in the process of recreational use, are subject to the greatest anthropogenic impact, so the biological
assessment of lake water in these areas is most relevant. In this regard, the purpose of our research work
was to study the species diversity of the algal flora of Lake Alakol. An analysis of the flora composition
of the algal flora of Lake Alakol revealed that the species diversity of the algoflora in them determines
the diatoms, green, blue-green, euglenic and cryptophyte algae that make up more than 89 species. The
conducted water quality assessment using indicator organisms revealed -mesosaprobic character of water, which allowed to conclude about moderate contamination of the surveyed lake areas. The scientific
significance of the study is to study the species diversity of microalgae and cyanobacteria of this object.
The practical significance of research is that the results obtained are necessary for forecasting and developing recommendations for the conservation and normal functioning of natural complexes.
Key words: bioindication, algoflora, Alakol, microalgae, saprobity