Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Seasonal Variations of Water Quality and Phytoplankton of 4 Lagoons in the East Coast of Korea

동해안 4개 석호의 수질과 식물플랑크톤 계절별 변화에 관한 연구

  • 문병렬 ((주)코비 KORBI 환경연구소) ;
  • 전현진 ((주)코비 KORBI 환경연구소) ;
  • 전숙례 ((주)코비 KORBI 환경연구소) ;
  • 이재선 ((주)코비 KORBI 환경연구소) ;
  • 신지은 ((주)코비 KORBI 환경연구소) ;
  • 안지혜 ((주)코비 KORBI 환경연구소) ;
  • 양용운 (계명문화대학교 소방환경안전과) ;
  • 현문식 ((주)코비 KORBI 환경연구소) ;
  • 김미아 ((주)코비 KORBI 환경연구소)
  • Received : 2014.11.18
  • Accepted : 2015.03.30
  • Published : 2015.09.30
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Abstract

The seasonal variation of phytoplankton communities and its standing crops in accordance with environmental factors were investigated at Yeongrang-ho, Cheongcho-ho, Mae-ho and Hyang-ho which are located in the East coast of Korea during April to October 2011. High concentrations of T-N and T-P were observed in four lagoons due to the inflowing nutrients from farmlands and residential areas near lagoons. Nutrient salts mainly composed of nitrogen and phosphate caused the eutrophication of the lakes, leading to the robust growth of phytoplankton. During the period of investigation, 64 to 107 taxa of phytoplankton were observed in four lagoons. Diatoms were the most dominant species with high density. Non-point pollution source was estimated as the main cause of water pollution of lagoons. Trophic states of lagoons evaluated using the value of TSI and TSIKO indicated that all the investigated lagoons were in the eutrophication state.

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