The results of electron-microscopic study of diatom algae composition on the submerged macrophyte Potamogeton perfoliatus L. in two large bays of Lake Teletskoye are presented. A total of 40 species were revealed, of which only eight were found in both bays. It was defined that the composition of diatoms in Kamga Bay, which is larger in area and length, is more diverse than in Kyga Bay. It was assumed, that the lake pelagic zone can influence on this process due to smaller size of the latter.
Keywords: diatom algae, phytoperiphyton, Potamogeton perfoliatus, Lake Teletskoye, Altai Mountains
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