DREDGING IMPACT ON THE LAKE MANZHEROK (REPUBLIC OF ALTAY) HYDRO/ BIOLOGICAL AND SANITARY/MICRO/BIOLOGICAL CHARACTERISTICS by Dmitry M. Bezmaternykh, Vladimir V. Kirillov, Nadezhda I. Yermolaeva, Laura M. Kipryanova, Lyubov V. Yanygina, Elena Y. Mitrofanova, Olga N. Vdovina, Anton V. Kotovschikov, Evgeniya Y. Zarubina