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Choi, Seung-ik,Ahn Tae-seok,Kenje Kato 江原大學校 附設 環境硏究所 1999 環境硏究 Vol.16 No.-
The development of computer-assisted image analysis has made it possible to measure the size of large numbers of bacterial particles. Using this approach, we elucidated diurnal changes in bacterial size distribution in L. Soyang, Korea. An apparent increase of badterial cell size was found during the daytime both in August and October for surface waters, where significant photosynthetic activity was observed. An increase in cell number was also confirmed. Thus, tight coupling between bacterial growth activity, cell size increase and photosynthetic activity was suggested In addition, a nocturnal increase in bacterial cell size was suggested in this lake, where bacterial doubling time was as short as several hours.