Korean Journal of Ecology and Environment (생태와환경)

The Korean Society of Limnology (한국수생태학회)
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Analyses of Community Structure of Phytoplankton in Reservoirs Located in the Geum River Watershed in South Korea

금강 유역 호소에서 출현하는 식물플랑크톤 군집구조 특성 분석

  • Choi, Yong Bum (Department of Environmental Engineering, Sangji University) ;
  • Shin, Yoon Keun (Department of Environmental Engineering, Sangji University)
  • Received : 2021.06.18
  • Accepted : 2021.11.18
  • Published : 2021.12.31
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Abstract

The present study investigated species richness and phytoplankton community structure in lakes in the Geum River Basin during autumn and spring seasons. Surveys were conducted between September and November 2019, and between April and May 2020, which corresponded to the autumn and spring seasons, respectively, to explore the distribution characteristics of the species. A total of 49 species of phytoplankton belonging to 31 genera and seven classes were identified in Cho Pyeong-ji, 51 species belonging to 29 genera and six classes were identified in Song Ak-ji, 49 species belonging to 32 genera and seven classes were identified in Cheong Cheon-ji, 82 species belonging to 45 genera and six classes were identified in Ye Dangji, and 70 species belonging to 40 genera and six classes were identified in Ganwol Lake. A total of 43 species belonging to 74 genera and seven classes were identified. The ranges of phytoplankton standing crop were as follows: 223~3533 cells mL-1 in Cho Pyeong-ji, 881~176018 cells mL-1 in Song Ak-ji, 402~6139 cells mL-1 in Cheong Cheon-ji, 262~10460 cells mL-1 in Ye Dang-ji, and 20413~330695 cells mL-1 in Ganwol Lake. Phytoplankton diversity in Cho Pyeong-ji, Song Ak-ji, Cheong Cheon-ji, Ye Dang-ji, and Ganwol Lake were 1.10~2.60, 0.56~2.03, 0.21~2.03, 0.65~2.57, and 0.44~1.12, respectively. Phytoplankton species richness in Cho Pyeong-ji, Song Ak-ji, Cheong Cheon-ji, Ye Dang-ji, and Ganwol Lake were 1.91~4.99, 1.82~3.26, 1.26~4.17, 2.07~5.37, and 1.90~2.43, respectively. Phytoplankton evenness indices in Cho Pyeong-ji, Song Ak-ji, Cheong Cheon-ji, Ye Dang-ji, and Ganwol Lake were 0.38~0.78, 0.18~0.69, 0.08~0.71, 0.22~0.72, and 0.14~0.38, respectively. Phytoplankton dominance indices in Cho Pyeong-ji, Song Ak-ji, Cheong Cheon-ji, Ye Dang-ji, and Ganwol Lake were 0.40~0.83, 0.55~0.96, 0.44~0.99, 0.42~0.93, and 0.89~0.97, respectively.

본 연구는 금강 유역 호소들의 추계시기와 춘계시기의 식물플랑크톤의 종조성 및 군집구조를 조사하고 분포특성을 파악하고자 2019년 9월과 11월, 2020년 4월과 5월에 현장 조사를 실시하였다. 식물플랑크톤은 초평지 7강 31속 49종, 송악지 6강 29속 51종, 청천지 7강 32속 49종, 예당지 6강 45속 82종, 간월호 6강 40속 70종이 출현하였으며, 총 7강 74속 143종이 출현하였다. 식물플랑크톤 현존량은 초평지 223~3,533 cells mL-1, 송악지 881~176,018 cells mL-1, 청천지 402~6,139 cells mL-1, 예당지 262~10,460 cells mL-1, 간월호 20,413~330,695 cells mL-1의 범위였다. 조사한 5개 호소 중 출현종수가 가장 높은 호소는 간월호였고 가장 낮은 호소는 초평지와 청천지였으며 식물플랑크톤 평균 현존량이 가장 높은 호소는 간월호였고 가장 낮은 호소는 초평지였다. 종다양성지수는 초평지 1.10~2.60, 송악지 0.56~2.03, 청천지 0.21~2.03, 예당지 0.65~2.57, 간월호 0.44~1.12의 범위였다. 풍부도지수는 초평지 1.91~4.99, 송악지 1.82~3.26, 청천지 1.26~4.17, 예당지 2.07~5.37, 간월호 1.90~2.43의 범위였다. 균등 도지수는 초평지 0.38~0.78, 송악지 0.18~0.69, 청천지 0.08~0.71, 예당지 0.22~0.72, 간월호 0.14~0.38 범위였다. 우점도지수는 초평지 0.40~0.83, 송악지 0.55~0.96, 청천지 0.44~0.99, 예당지 0.42~0.93, 간월호 0.89~0.97 범위였다.

Keywords

Acknowledgement

상지대학교 대학원 지원에 의하여 수행된 연구임.

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