Keyword: «irtysh river»

the work is devoted to assessing the water quality of the Irtysh River in the territory of the city of Tobolsk using the bio-indicator method. The results of this work are of practical importance for improving the system of monitoring and environmental management. The relevance of this study lies in the fact that water resources have begun to be used in disproportionate amounts, for this reason, today, the biological study of natural waters in the interest of protecting the hydrosphere and improving its nature management becomes important.

The study of bioecological features of the common lower Irtysh perca was conducted in the vicinity of the village of Sumkino in 2019. The caught ichthyomaterial was subjected to morphological and biological analysis. As a result of ball's research, the specificity of indicators of native perch in comparison with individuals.