생태와환경 (Korean Journal of Ecology and Environment)

  • 제51권4호
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  • Pages.354-364
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  • 2018
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  • 2288-1115(pISSN)
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  • 2288-1123(eISSN)
한국수생태학회 (The Korean Society of Limnology)
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강우에 따른 중랑천 어류군집의 시공간적 분포 특성

Spatial and Temporal Distribution of Fish Communities with Rainfall in Jungrang Stream

  • 이승현 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 정현기 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 신현선 (농촌진흥청 연구정책국 기후변화팀) ;
  • 김진영 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 박상숙 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 신유나 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 문정숙 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 이수웅 (국립환경과학원 물환경공학연구과 유역생태연구팀) ;
  • 이재관 (국립환경과학원 물환경연구부)
  • Lee, Seung-Hyun (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Jeong, Hyun-Gi (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Shin, Hyun-Seon (Climate Change Team, R&D Coordination Division, Rural Development of Administration) ;
  • Kim, Jin-young (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Pak, Sangsuk (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Shin, Yuna (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Moon, Jeong-Suk (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Lee, Su-Woong (Watershed Ecology Research Team, National Institute of Environmental Research) ;
  • Lee, Jae-Kwan (Water Environment Research Department, National Institute of Environmental Research)
  • 투고 : 2018.10.29
  • 심사 : 2018.12.12
  • 발행 : 2018.12.31
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초록

본 연구는 2008년부터 2016년까지 한강 지류 중랑천을 대상으로 수환경 변화에 따른 어류 군집 양상을 파악하고자 실시하였다. 조사결과, 중랑천에서 서식하는 어류는 총 9과 37종 8,421개체로 나타났으며 과별 출현 종수는 잉어과에서 23종(62.2%)으로 가장 많은 종이 출현하였고, 생태계교란종 및 외래종은 모두 강우기 후 출현하는 특성을 보였다. 수질변화에 따르면, BOD, EC, TN, TP의 변화는 강우량의 증가에 따라 감소하는 양상을 보이는 반면, SS 변화는 증가하는 양상을 보였다. 지점간 CA결과 한강 본류와 인접한 St. 7과 St. 1, 3, 5가 어류의 출현양상 차이를 보였으며, PCA 분석결과 상류에서 하류, 강우기 전과 후의 어류출현양상과 유기오염지표의 변화 양상을 보였다.

In this study, we surveyed the fish community at the four sites(St. 1, 3, 5, 7) in Jungrang Stream from 2008 to 2016. We found 37 species grouped into nine families. There were three exotic species; Cyprinus carpio, Carassius cuvieri and Micropterus salmoides after rainfall. Dominant species was Zacco platypus (57.3%) and subdominant species was Carassius auratus(10.4%) in a community. The water quality, surveyed at the six sites(St. 1, 2, 3, 4, 5, 6), based on eight factors(Water temperature, pH, DO, BOD, SS, EC, TN and TP), largely varied depending on each site and period. Minimum values in four factors(BOD, EC, TN and TP) were observed in rainy season, indicating an ionic and nutrient dilution of stream water by precipitation. In contrast, a maximum value in SS was occurred in rainy season at St. 2 and St. 5. The precipitation, Maximum value observed in July ($497.5{\pm}297.2mm$), minimum value in January ($12.9{\pm}8.6mm$). In July and August, the precipitation was divided into before and after the rainfall season in Jungrang stream. Using cluster analysis three fish sites (St. 1, 3, 5) were identified as significantly influence 11 fish species; Hemiculter eigenmanni, Squalidus japonicus coreanus, Hemibarbus labeo, Gnathopogon strigatus, Pungtungia herzi, Rhynchocypris oxycephalus, Pseudogobio esocinus, Pseudorasbora parva, Cyprinus carpio, Carassius auratus and Zacco platypus by rainfall.

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과제정보

연구 과제 주관 기관 : 국립환경과학원

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