Bacterial decomposition of organic matter in lacustrine sediments

  • V. G. Drabkova
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 15)


The investigations were carried out in lakes situated in the forest zone (Karelian Isthmus, Baltic zone, South Ural) and in the forest-steppe (South Ural) of the USSR. The lakes differ in their bioproductivity and in the intensity of their human influence. The amount of organic matter accumulating in the sediments is closely related to production and decomposition processes in the trophogenic layer. Processes of organic matter transformation were found to be most active in the uppermost sediment. The quantity of bacteria shows no correlation with the organic matter content of the sediment. Increase in organic matter, up to 70–80% of dry weight, is often accompanied by a decrease in bottom bacteria. The intensity of aerobic decomposition of the labile organic matter can be judged from the oxygen demand of the sediments. However, it is important to differentiate between chemical and biological oxidation processes. The quantity of bottom bacteria correlates closely with the value of oxygen consumption only in cases of high sediment redox potentials


paleolimnology organic matter bacteria aerobic decomposition oxygen consumption 


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  1. Edwards, R. W. & Rolley, H. L., 1965. Oxygen consumption of river muds. J. Ecol. 53: 1–19CrossRefGoogle Scholar
  2. Gambarjan, M. E., 1962. Method for analyzing the intensity of the destruction of organic matter in sediments of deep lakes (in Russian). Microbiology 31: 895–898Google Scholar
  3. Hargrave, B. T ., 1975. The importance of total and mixed-layer depth in the supply of organic material to bottom communities. Symp. Biol. Hung. 15: 157–165.Google Scholar
  4. Hayes, F. R. & Anthony, E. H., 1959. Lake water and sediment. VI. The standing crop of bacteria in lake sediments and its place in the classification of lakes. Limnol. Oceanogr. 4: 299–315.CrossRefGoogle Scholar
  5. Kuznetzov, S. I., 1950. Microbiological characteristics of the destruction of organic matter in mud sediments (in Russian). Transaction of the laboratory of sapropel sediments 4: 15–28Google Scholar
  6. Ohle, W ., 1956. Bioactivity production and energy utilization of lakes. Limnol. Oceanogr. 1: 139–149.CrossRefGoogle Scholar
  7. Romanenko, V. I. & Romanenko, V. A., 1969. Destruction of organic matter in sediments of the Rybinsk reservoir. In: Physiology of water organisms and their role in the organic matter circulation (in Russian): 24–31.Google Scholar
  8. Rýbak, J. I., 1966. Method for analyzing the microstratification in the near-bottom water layers. Bulletin de l’Academie Polonaise des sciences 14: 321–325Google Scholar

Copyright information

© Dr W. Junk Publisher, The Hague 1983

Authors and Affiliations

  • V. G. Drabkova
    • 1
  1. 1.Institute of Lake ResearchAcademy of Sciences of the U.S.S.R.LeningradUSSR

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