Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
권호 표지

Phytoplankton Community and the Evaluation of Water Quality Status in So-ok Stream, the Inflowing Stream to Daechung Lake

대청호의 유입지천인 소옥천의 식물플랑크톤 군집 분석 및 수질영양단계 평가

  • Kim, Ok-Jin (Department of Life Science, Kyonggi University) ;
  • Lee, Ok-Min (Department of Life Science, Kyonggi University)
  • 김옥진 (경기대학교 생명과학과) ;
  • 이옥민 (경기대학교 생명과학과)
  • Received : 2010.12.14
  • Accepted : 2011.06.09
  • Published : 2011.06.30
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Abstract

The study analyzed the physico-chemical quality of water and the resident phytoplankton community, and evaluated the water trophic status in So-ok stream flowing into Daechung lake from October 2007 to July 2008. Algal blooming by cyanophytes and diatoms continued throughout the year, with Microcystis aeruginosa and Aulacoseira granulata being prevalent. Ten taxa that are indicators of polluted water, including Oscillatoria limosa appeared. Results based on (Trophic status index) TSI and (Lake trophic status index) LTSI evaluations of water quality status indicated mesotrophication.

본 연구는 2007년 10월부터 2008년 7월까지 대청호의 중요 유입지천인 소옥천에 대해 이화학적 수질, 식물플랑크톤 군집을 분석하고 수질영양단계를 평가하였다. 식물플랑크톤은 Microcystis aeruginosa와 Aulacoseira granulata 등 수화원인종의 출현빈도가 높아 잠재적으로 남조류 및 규조류에 의한 녹조현상이 연중 지속될 수 있을 것으로 판단된다. 또한 Oscillatoria limasa를 포함한 10분류군의 오염수역 지표종이 출현하였다. TSI (Trophic Status Index)와 LTSI (Lake Trophic Status Index)에 의한 수질영양단계 평가 결과, TSI는 중부영양~부영양화단계, LTSI는 중부영양단계~과영양단계로 평가되었다.

Keywords

Acknowledgement

Supported by : 한국연구재단

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