水界における細菌群の呼吸量推定法〔英文〕

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  • TEZUKA Yasuhiko
    Laboratoy of the Science of Living, Faculty of Science, Tokyo Metropolitan University

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タイトル別名
  • A METHOD FOR ESTIMATING BACTERIAL RESPIRATION IN NATURAL WATER
  • スイカイ ニ オケル サイキングン ノ コキュウリョウ スイテイホウ エイブン

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TEZUKA Yasuhiko (Laboratory of the Science of Living, Faculty of Science, Tokyo Metropolitan University). A method for estimating bacterial respiration in natural water. Jap. J. Ecol. 18,60-65 (1968). A new method is described whereby the bacterial respiration in natural water taken from the eutrophic lake can be estimated. The bacterial population is separated to some extent from other planktonic organisms by size fractionation using a Millipore filter of 8 or 5 μ porosity. Based on the respiratory activity of the bacterial population thus obtained and the change in the size of the bacterial population in the natural water, the bacterial respiration in the natural water can be calculated. By comparing the respiration of the bacterial population with that of the total planktonic organisms including the bacteria, the role of the bacterial population in the mineralization process can be estimated. The results of some experiments showed that the percentage of bacterial respiration to total plankton respiration varied widely from sample to sample in the range of 6 to 55. Problems associated with this method were also checked or discussed.

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