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KMID : 0364819910290060402
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Korean Journal of Microbiology
1991 Volume.29 No. 6 p.402 ~ p.407
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Determination of Marine Bacterial Number and Biovolume in the Intertidal Zone of the Yellow Sea near Kunsan, Korea
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Abstract
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1
As a baseline survey to clarify the structure and function of bacterial populations in the intertidal waters of the Yellow Sea near Kunsan in 1987/1988, annual variation of bacterial number and biovolume was estimated by AODC method. Rod-shaped bacteria were more than 74% of all cells during the investigation period. Average biovolume of sampled bacteria ranged from 3.19±0.59X 10-2 to 6.19±0.76X 10-2 pm´ for coccoid bacteria, and from 4.57±0. 17X10-´ to 12.94±0.21X 10-2 pm´ for rod-shaped ones. It showed that larger biovolume occurred at surface in case of coccoid bacteria, while at bottom in case of rod-shaped ones. There was little correlation between population density and biovolume. Diameters of cells were below 0.5 pm among 77-89% of all measured coccoid bacteria, and lengthes of cells more than 70% of all measured rod-shaped ones were below 1 pm. It explains the high percentage of "mini-bacteria" was distributed in the investigation area.
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