A note on the survey of the two lakes, Motosu-ko and Syôzi-ko:Comparison of the data of 1953 with those of 1929 and 1930

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• The results are shown in Fig. 1 and 2. In the case of Motosu-ko, an oligotrophic lake, any essential difference cannot be noticed between MIYADI'S data obtained in 1930 and the present ones in 1953. But in the case of Syôzi-ko, an eutrophic lake, changes towards a greater degree of eutrophy seem to have occurred during the twenty years since MIYADI'S observation.

• 日本陸水学会の論文

日本陸水学会 | 論文

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