WATER QUALITY OF THE KACHA RIVER (KRASNOYARSK) ACCORDING TO THE STATE OF ZOOBENTHOS COMMUNITIES
Abstract
The article provides an assessment of water quality and degree of water pollution of the left tributary of the
Yenisei river - Kacha river near Krasnoyarsk on the basis of qualitative and quantitative characteristics of
zoobenthos. In the composition of zoobenthos 45 species were found, among which chironomids reached the
highest species diversity - 60%. Based on the obtained index values (biotic, saprobidity), the water quality of the
Kacha river can be characterized as “polluted”, the ecosystem condition corresponds to anthropogenic ecological
regression
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