BIOMONITORING LAKE CHEBARKUL WATER ON MACROPHYTE COMMUNITY, RUSSIA
Keywords:
Aquatic Macrophytes, Macrophyte Biodiversity, Trophic Status, BiomonitoringAbstract
The article studies macrophyte biodiversity in Lake Chebarkul (Russia) and the influence of water chemistry on it. The macrophyte community composition is sensitive to any environmental changes. Higher or lower trophic status is the most important factor responsible for changing taxons of high environmental value (sensitive taxon) into potentially ruderal species. This is typical for the areas with an increased anthropogenic impact on the lake. This paper identifies species diversity, the taxonomic structure
of aquatic flora for each section of the lake. Macrophytes were studied along the lake shore both with the
help of qualitative and quantitative analysis. The lake flora was listed for each lake profile, and then the
general list of differences and similarities for all the studied sites was compiled. The final flora list includes
about 90 spices plants. According to the study results, the macrophyte species composition of the studied
sites is different. 59 % of the total number of taxa was present at all sites, while 9 % of them, mostly sensitive
taxa, were found only in a group of points with relatively clean water. However, the overgrowth was highest
in the fourth group (102 %), slightly lower at the points of the third group (92 %) and significantly lower in
the second (58 %) and first (44 %) groups. The article considers the possibility of bioindication quality with
the biomass of common macrophytes- Potamogéton lucens L., P. obtusifolius, P. pusillus, P. crispus and
Phragmites australis L. of Lake Chebarkul (Russia).