Composition and Morphology of Scaly Golden Algae Left-Bank Volga Tributaries

Based on electron-microscope studies of the phytoplankton of two left-bank tributaries of the Cheboksary reservoir, 30 species of silica-scaled chrysophytes from the Chrysophyceae class, including 3 species new for the Russian flora and 1 species potentially new for science, have been found. Data on the abundance and biomass of phytoplankton with the role of chrysophyte algae are presented. The dominance of silica-scaled chrysophytes in spring and early summer algocenoses of the Kerzhenets River is noted.