Journal of Life Science (생명과학회지)

Korean Society of Life Science (한국생명과학회)
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Characterization of Water Quality and Microbial Communities in Rivers in Changwon city

창원시 하천의 수질 및 미생물상 분석

  • Kim Sun-A (Department of Biology, Chanwon National University) ;
  • Kim Chung-Hye (Department of Biology, Chanwon National University) ;
  • Lim Byung-Ran (Department of Environmental Engineering, Myongji University) ;
  • Cho Kwang-Hyun (Department of Statistics, Chanwon National University) ;
  • Park Hee-Chang (Department of Statistics, Chanwon National University) ;
  • Joo Woo Hong (Department of Biology, Chanwon National University)
  • Published : 2006.02.01
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Abstract

The diversity of bacterial populations in rivers flowing through Changwon City, was investigated using quinone profiling. The physicochemical properties such as temperature, pH, dissolved oxygen(DO), dissolved organic carbon (DOC) and biochemical oxygen demand (BOD) were also measured in this study. Ubiquinone (UQ)-8, UQ-9 and UQ-10 were observed in all samples for the sites investigated. UQ-8 was the -predominant quinone species in rivers except for Namch'on downstream, T'owolch'on, and Kaumchongch'on in autumn, while UQ-8 was also found as major quinones in the sample except for Hanamch'on, T'owolch'on, Kaumchongch'on, and Namsanch'on in winter. A higher concentration of DOC in rivers yield high concentration of plastoquinone (PQ-9) in autumn and those of total quinones in winter, respectively. Correlation analysis also indicate that BOD is considered to be a major factor controlling the concentration of PQ in rivers.

창원시 주요하천의 미생물군집의 다양성을 quinone profile 방법을 이용하여 분석하였다. 그리고 온도, pH, 용존산소(DO), 용존탄소(DOC)와 화학적 산소 요구량(BOD)등 물리화학적 성상도 조사하였다. Ubiquinone UQ-8, UQ-9, UQ-10은 모든 조사 하천에서 관찰되었다. UQ-8은 가을의 남천하류, 토월천, 가음정천을 제외한 모든 하천에서 주요 퀴논 분자종이었으며, 겨울철에는 하남천, 토월천, 가음정천과 남산천을 제외한 하천에서 역시 주요 퀴논 분자종임이 확인되었다. DOC가 높을수록 가을철에는 plastoquinone(PQ-9)의 농도가 높았으며, 겨울에는 total quinone의 농도가 높았다. 상관분석 결과 BOD도 하천의 PQ농도를 좌우하는 주요 요인으로 확인되었다.

Keywords

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