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Journal Article

Ein neues Verfahren zur Untersuchung der bakteriellen Besiedlung grundwasserführender sandiger Sedimente

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Marxsen,  Jürgen
Limnological River Station Schlitz, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Marxsen, J. (1982). Ein neues Verfahren zur Untersuchung der bakteriellen Besiedlung grundwasserführender sandiger Sedimente. Archiv für Hydrobiologie, 95(1/4), 221-233.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-CB95-8
Abstract
Abstract Containers of stainless steel nets with sterilized sand (0.40-0.80 mm grain size) were placed in a pumping tube at 4.0 m depth in groundwater-bearing sediments, so that the quantity of bacteria in the sandy fraction of these sediment layers could be measured. Three months after the beginning of the experiments, when rather stable populations had developed, 0.16-0.31 * 109 bacteria per ml and 0.0030-0.0056 mg bacterial dry weight per ml were found. The bacterial biomass amounted to 0.21-0.32 % of the total organic matter. The interstitial bacteria are supposed to amount to less than 1 % of the total number of bacteria in the investigated substrate.