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Distribution of Population Densities of Heterotrophic Bacteria and Fecal-Origin Bacterial Group in Seawater and Sediments near Samcheonpo Bay  

Park, Suhk-Hwan (Department of Biology, College of Natural Sciences, Kunsan National University)
Lee, Geon-Hyoung (Department of Biology, College of Natural Sciences, Kunsan National University)
Publication Information
Korean Journal of Environmental Biology / v.24, no.3, 2006 , pp. 258-267 More about this Journal
Abstract
Distribution of population densities of heterotrophic bacteria, E. coli, and Salmonella and Shigella in seawater and sediments at 40 stations near Samcheonpo Bay were measured for 3 times from July to December, 2003. Population densities of heterotrophic bacteria in seawater during survey periods were in the range of $1.7{\pm}0.9{\times}10^3{\sim}2.4{\pm}0.9{\times}10^5$ CFU $mL^{-1}$ and the highest density was shown at St. 34 during the sampling period of September, 2003. Population densities of heterotrophic bacteria were shown higher values on September than those of July and December at all sampling stations. Population densities of anaerobic heterotrophic bacteria in sediments during survey periods were in the range of $2.2{\pm}0.2{\times}10^3{\sim}2.0{\pm}0.2{\times}10^5$ CFU $mL^{-1}$ and their population densities at sampling stations far from Samcheonpo Bay measured lower values than those near Samcheonpo Bay. Population densities of anaerobic heterotrophic bacteria in the sediments were not affected by physico-chemical factors of upper water environment. E. coli were detected only at 8 stations in seawater and 4 stations in the sediments among 40 sampling stations on July and were not detected during September and December. Salmonella and Shigella were detected only a few stations on July and September during sampling periods.
Keywords
Samcheonpo Bay; heterotrophic bacteria; E. coli; Salmonella and Shigella; anaerobic heterotrophic bacteria;
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