%0 Journal Article
%T Dynamics of bacterioplankton in water bodies contaminated with nitrogen
%A Ievgeniia Starosyla
%J Limnological Papers
%D 2007
%I 
%R 10.2478/v10232-011-0010-3
%X There have been presented the results of the microbiological research for 2003-2005 into the cascade of ponds in the dendropark Aleksandriya (the town of Belaya Tserkov). The water of thereof had concentration of mineral nitrogen typical of hypertrophic water bodies (69.9-413.9 mg N/l). The amount of oxygen dissolved in the water was equal to 48.5-7.2%. The number and biomass of the bacterioplankton in ponds varied from 3.4 to 23.2 ¡Á 106/cells ml-1, from 64.6 to 412.4 ¦Ìg C/l-1 respectively. During the whole period of the observation rod-shaped bacteria prevailed in the number and biomass of the bacterioplankton (68.0-85.0% and 62.8-77.1% accordingly); coccal forms reached 9.7-22.1% of the total number and 12.7-28.0% of the biomass of bacteria; curve-shaped bacteria - 0.9-18.9% and 1.9-23.3% respectively. The average volumes of rod-shaped bacteria amounted to 0.054 ¦Ìm3, cocci - 0.074 ¦Ìm3, curve-shaped cells to 0.191 ¦Ìm3. In the most contaminated pond where ammonia nitrogen reduced, the volumes of cells, number and biomass of bacterioplankton rose, which indicated active processes of assimilation N-NH4 by bacteria using it to synthesize amino acids.
%K number
%K biomass
%K morphological forms
%K size cells of bacterioplankton
%K mineral nitrogen
%U http://versita.metapress.com/content/d472344r436667v2/?p=8a43bd2befe04443a105b65ed45cee9a&pi=9