RT Journal Article ID 128f25674d2dc915 A1 Timakova, T. M. T1 Functioning of Bacterioplankton in Acidic Water Bodies of Karelia JF Hydrobiological Journal JO HYD YR 2000 FD 2000-12-01 VO 36 IS 6 OP 10 AB Microbiological processes of organic matter production and decomposition were studied in oligo- and meso-poly-humic water bodies of Karelia classified as acidic, slightly acidic, and neutral ones. The tendency for a decrease in organic matter primary production and biosynthetic activity of bacteria was registered with decreasing pH of water related to the deterioration of the processes of CO2 fixation both in the light and in the dark. This phenomenon was conditioned by the disruption of relationships among various forms of carbon and by almost a total absence (disappearance) of hydrocarbonate ions in the water bodies with pH = 5.5. The peculiarities of the processes of acidification occurring in oligo-humic and meso-poly-humic water bodies are considered. PB Begell House LK https://www.dl.begellhouse.com/journals/38cb2223012b73f2,250e164606a8fd59,128f25674d2dc915.html