TAXONOMIC FLORISTIC ANALYSIS OF PHYTOPLANKTON OF OPEN WATER BODIES OF BUKHARA REGION

Abstract

The aim was to study and assess the qualitative and quantitative composition of phytoplankton in surface water bodies of the Bukhara region. It was found that Bacillariophyta (34 species), Chlorophyta (20 species), Cyanophyta (15 species), rarely Dinophyta (5 species), Englenophyta (1 species) were found more often in Lake Tudakul and the Kuyumazar reservoir. The highest total phytoplankton abundance in the water of both reservoirs was Cyanophyta, and the highest phytoplankton biomass was recorded in Bacillariophyta and Chlorophyta. At the same time, Englenophyta and Dinophyta were not found in the waters of the Kuyumazar reservoir. In the phytoplankton samples from Lake Tudakul, planktonic freshwater-brackish-water forms b-mesosaprobic predominated; brackish-water b- and b- and α-mesosaprobic species of algae prevailed