State of geterotrophic bakterioplankton in coastal zone of Svyatoe and Beloe lakes in natural and historical park "Kosinskiy" (Moscow city) in 2011

From December 2010 to December 2011 it was investigated the total number of bacteria, number of bacteria with active electronic and transport chain, quantity the saprotrophic bacteria, and also concentration of chlorophyll “a” and some other hydrochemical parameters in water tests from a surface layer in lakes Svyatoe and Beloe, located in Kosino-Ukhtomskiy district of Moscow. It is revealed that at these lakes there is numerous actively functioning geterotrophic bacterioplankton, and its quantity considerably increased in comparison with observed in the thirties of last century the staff of Kosinskiy limnological station. Seasonal dynamics of bacterioplankton development in Kosinskiy lakes significantly changed since then. Maximum of number of TsTH+ of bacteria in Svyatoe lake had for the end of August, and in Beloe lake - for the end of December. The greatest size of TsTH+ cells of bacteria from total number of bacterioplankton in both lakes was observed at the end of August. The maximum number of cells with damaged membrane ("dead") from total of viable cells in Svyatoe and Beloe lakes it was observed in summer, at the end of July, at the most high temperature of water in lakes.