Journal of Environmental Health Sciences (한국환경보건학회지)

Korean Society of Environmental Health (한국환경보건학회)
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Investigation of Zooplankton Communities in Streams in Northern Gyeonggi-do Province

경기북부 주요 하천 내 동물플랑크톤 군집특성 조사 연구

  • Go, Soon-Mi (Gyeonggi-do Institute of Health & Environment) ;
  • Im, Heung-Bin (Gyeonggi-do Institute of Health & Environment) ;
  • Jung, Eun-Hee (Gyeonggi-do Institute of Health & Environment) ;
  • Kim, Tae-Yuel (Gyeonggi-do Institute of Health & Environment) ;
  • Kim, Jae-Kwang (Gyeonggi-do Institute of Health & Environment) ;
  • Choi, Jeong-In (Gyeonggi-do Institute of Health & Environment) ;
  • Lee, Ho-Jung (Gyeonggi-do Institute of Health & Environment) ;
  • Oh, Jo-Gyo (Gyeonggi-do Institute of Health & Environment)
  • 고순미 (경기도 보건환경연구원 북부지원) ;
  • 임흥빈 (경기도 보건환경연구원 북부지원) ;
  • 정은희 (경기도 보건환경연구원 북부지원) ;
  • 김태열 (경기도 보건환경연구원 북부지원) ;
  • 김재광 (경기도 보건환경연구원 북부지원) ;
  • 최정인 (경기도 보건환경연구원 북부지원) ;
  • 이호정 (경기도 보건환경연구원 북부지원) ;
  • 오조교 (경기도 보건환경연구원 북부지원)
  • Received : 2019.06.19
  • Accepted : 2019.07.16
  • Published : 2019.10.31
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Abstract

Objectives: Zooplankton communities play important roles in aquatic ecosystems as secondary producers that graze on phytoplankton and in turn are preyed upon by planktivorous and juvenile fish. They can shift their distribution, species composition, and abundance in response to environmental changes. Therefore zooplankton communities are important for understanding the energy flow in aquatic ecosystems and can be valuable indicators of environmental conditions. However, zooplankton in streams are still not well-studied, especially in northern Gyeonggi-do Province. This study aims to investigate the zooplankton communities in major streams in northern Gyeonggi-do Province. Methods: Zooplankton is important in the nutrient cycle and energy flow of aquatic ecosystems. Therefore, we surveyed zooplankton and measured temperature, DO, BOD, COD, T-N, T-P, and Chl-a in major streams (Sincheon, Gongneungcheon, Wangsukcheon, and Gapyeongcheon Streams) and stagnant water (Gomoji Reservoir). Results: The water quality in Gapyeongcheon Stream was the highest grade, while that of Gomoji Reservoir was mesoeutrophic and eutrophic during the research period. In the zooplankton community, Nauplius, Rotaria, and Monostyla spp. were dominant in Sincheon, Gongneungcheon, and Wangsukcheon Streams, and the dominance index was also high. In the case of Gapyeongcheon Stream, it was found that water quality and aquatic ecosystem health were good, and the lowest dominance index reflected this. In Gomoji Reservoir, Polyarthra spp., Nauplius, and Bosmina longirostris, which can be easily observed as eutrophication progresses, showed a high dominance rate. Therefore, it is necessary to monitor the progress of eutrophication in further research. Conclusions: We collected data on the zooplankton communities in streams and investigated their characteristics. As a result, specific species were found to be dominant at each survey sites and some of them are known to be observed as eutrophication progresses. Therefore, we should investigate the zooplankton community of streams around us and apply ecological stream management.

Keywords

References

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