Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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A Survey on Fish Habitat Conditions of Domestic Rivers and Construction of Its Database

국내 어류 서식환경 조사 및 데이터베이스 구축

  • Jung, Jin-Hong (Environment Engineering Research Division, Korea Institute of Construction Technology) ;
  • Park, Ji-Young (Environment Engineering Research Division, Korea Institute of Construction Technology) ;
  • Yoon, Young-Han (Environment Engineering Research Division, Korea Institute of Construction Technology) ;
  • Lim, Hyun-Man (Environment Engineering Research Division, Korea Institute of Construction Technology) ;
  • Kim, Weon-Jae (Environment Engineering Research Division, Korea Institute of Construction Technology)
  • 정진홍 (한국건설기술연구원 환경연구실) ;
  • 박지영 (한국건설기술연구원 환경연구실) ;
  • 윤영한 (한국건설기술연구원 환경연구실) ;
  • 임현만 (한국건설기술연구원 환경연구실) ;
  • 김원재 (한국건설기술연구원 환경연구실)
  • Received : 2013.01.23
  • Accepted : 2014.03.03
  • Published : 2014.03.31
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Abstract

In order to restore an ecologically damaged river, freshwater fish which inhabit at the target aquatic ecosystem have a great applicability as one of the essential indicators. Although the informations about the habitat conditions of freshwater fish are key elements reflecting biological, physical, and chemical properties of the aquatic environment, because of the lack of preceding related research and insufficient database with scattered data, they have not been applied effectively for the ecological river restoration projects in Korea. To cope with these problems, based on the nation-wide detailed investigation for domestic freshwater fish habitat conditions, we have selected 70 species considering the possibility for the candidates of flagship species, constructed a database for their population, physical, and chemical habitat properties, and suggested its application methodology for the river restoration projects. In particular, the utilization of the database has been enhanced by the additional statistical analysis to present their resistance and optimum ranges for physical, and chemical habitat properties respectively. It is expected that the database constructed in this study can be utilized for the calculation and evaluation of the appropriate ecological flow rate and target water quality for the selected flagship species (fish), and the basic data for the restoration of river environment.

수생태적 건전성이 훼손된 하천을 자연형 생태하천으로 복원하고자 할 경우, 대상 수생태계에 서식하고 있는 담수어류는 핵심적 지표생물로서의 활용 가능성이 매우 크다. 어류의 서식환경에 대한 정보는 수환경의 생물학적 및 물리 화학적 특성을 반영할 수 있는 핵심적 요소임에도 불구하고 관련 연구가 미비하고 기존 데이터 또한 산재해 있는 등 데이터베이스(DB)화가 미흡하여 생태하천 복원사업의 추진 과정에서 이를 충분히 연계하지 못하고 있는 실정이다. 이러한 문제에 대응하기 위하여 국내에 서식하고 있는 주요 담수어종의 서식환경에 대한 전국 규모의 상세조사 결과를 바탕으로, 깃대종으로서의 활용도가 높을 것으로 판단되는 70종을 선정하여 각 어종별로 개체군 특성, 물리적 및 이화학적 서식특성을 DB화하고, 이를 생태하천 조성사업에 활용하는 방안을 제시하였다. 특히, 물리적, 이화학적 서식환경에 대해서는 서식범위와 최적범위를 산출하는 통계분석을 추가 수행하여 DB의 활용성을 제고하였다. 본 연구에서 구축한 DB는 생태하천 복원시 선정된 깃대종(어류)에 적합한 생태유량과 목표수질의 산정, 평가 및 서식환경 복원을 위한 기초자료로 활용될 수 있을 것으로 기대된다.

Keywords

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