Assessment of ecological state of water bodies of Altai territory using hydro-optical methods and biotesting
The paper investigates the possibilities of a combination of optical methods and biotestingfor the assessment of ecological state of natural water ecosystems. As natural reservoirs, five lakes(Gorkoe, Bezymyannoe, Lapunikha, Bolshoe Ostrovnoe, Novenkoe) from 4 regions of Altai Krai (Mamontovskiy, Uglovskiy, Rubtsovskiy and Loktevskiy) were taken. The study determined the optical parameters that provideecological assessment of a water body: concentration of chlorophyll «a» (the trophic state of the reservoir), photosynthetic activity of algae (or their life status), dissolved organic and suspended inorganic matter. In this work, we applied methods of biotesting, based on the change in luminescence intensity of luminous bacteria. Optical and biological characteristics obtained in the research allowed us to assess the condition of the objects, on the one hand, by the parameters of condition of environment (optical parameters) and, on the other hand, by the indicators characterizing the state of the biota (bioluminescence methods). The combination of control methods offered in this paper allows to quickly identify the most unfavorable objects from the ecological point of view and solve the problem of the necessity of other analytical procedures.