Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Seasonal Succession Characteristic of Phytoplankton Community in Lake Doam

도암호에서 식물플랑크톤 군집의 계절적 천이 특성

  • Joung, Seung-Hyun (Han River Environmental Research Center, National Institute of Environment Research) ;
  • Park, Hae-Kyung (Water Environment Research Department, National Institute of Environment Research)
  • 정승현 (국립환경과학원 한강물환경연구소) ;
  • 박혜경 (국립환경과학원 물환경연구부)
  • Received : 2010.04.13
  • Accepted : 2010.05.25
  • Published : 2010.07.30
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Abstract

Environmental factors and phytoplankton community in Lake Doam were monthly investigated at 3 stations from April 2009 to November 2009. During the study period, the concentrated rainfalls occurred at between July and August and then the TP and turbidity were sharply increased in in-lake. A total of 91 phytoplankton species was classified and these were consisted of 38 Bacillariophyceae, 35 Chlorophyceae, 10 Cyanophyceae, and 8 other species. Bacillariophyceae and Chlorophyceae were dominated during the seasonal succession of phytoplankton community, especially summer season. Bacillariophyceae was dominated from spring season to summer season and Chlorophyceae was dominated at summer season and autumn season. However, the dominance of Cyanophyceae generally developed at summer season in eutrophic water was not observed. From the analysis of correlation coefficient between environmental factors and phytoplankton cell number, we confirmed that there was a negative correlation between turbidity and cyanobacteria cell number (P<0.01). This result indicated that turbid water acts as the inhibitor of the cyanobacteria growth than other phytoplankton community.

Keywords

References

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