Ключевое слово: «megino-kangalassky ulus»

Ecological monitoring of aquatic ecosystems provides valuable information on their condition under the changing level of anthropogenic load and in connection with the intensifying impact of climate warming on the territory of continuous permafrost distribution. Water quality monitoring (in particular, pH, electric conductivity, color, concentration of ions and level of nutrients) gives an idea of changes in the condition of a water body depending on the level of its pollution. In water bodies pollutants slowly settle to the bottom and accumulate in sediments. Therefore, the bottom sediments can be used to trace changes in the state of the environment in different periods of time. The article contains up-to-date information on the current state of lake ecosystems in the Me-gino-Kangalassky ulus. The new limnological, hydrochemical characteristics and composition of diatomic algae complement the existing database on Yakutia.