Korean Journal of Environmental Biology (환경생물)

Korean Society of Environmental Biology (한국환경생물학회)
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International and domestic research trends in longitudinal connectivity evaluations of aquatic ecosystems, and the applicability analysis of fish-based models

수생태계 종적 연결성 평가를 위한 국내외 연구 현황 및 어류기반 종적 연속성 평가모델 적용성 분석

  • Kim, Ji Yoon (Department of Bioscience and Biotechnology, Chungnam National University) ;
  • Kim, Jai-Gu (Environment Solution Partners) ;
  • Bae, Dae-Yeul (Chungrok Environmental Ecosystem Research Institute) ;
  • Kim, Hye-Jin (Department of Bioscience and Biotechnology, Chungnam National University) ;
  • Kim, Jeong-Eun (Department of Bioscience and Biotechnology, Chungnam National University) ;
  • Lee, Ho-Seong (Department of Bioscience and Biotechnology, Chungnam National University) ;
  • Lim, Jun-Young (Department of Bioscience and Biotechnology, Chungnam National University) ;
  • An, Kwang-Guk (Department of Bioscience and Biotechnology, Chungnam National University)
  • 김지윤 (충남대학교 생명시스템과학대학 생명과학과) ;
  • 김재구 ((주) 엔솔파트너스) ;
  • 배대열 (청록환경생태연구소) ;
  • 김혜진 (충남대학교 생명시스템과학대학 생명과학과) ;
  • 김정은 (충남대학교 생명시스템과학대학 생명과학과) ;
  • 이호성 (충남대학교 생명시스템과학대학 생명과학과) ;
  • 임준영 (충남대학교 생명시스템과학대학 생명과학과) ;
  • 안광국 (충남대학교 생명시스템과학대학 생명과학과)
  • Received : 2020.11.02
  • Accepted : 2020.12.10
  • Published : 2020.12.31
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Abstract

Recently, stream longitudinal connectivity has been a topic of investigation due to the frequent disconnections and the impact of aquatic ecosystems caused by the construction of small and medium-sized weirs and various artificial structures (fishways) directly influencing the stream ecosystem health. In this study, the international and domestic research trends of the longitudinal connectivity in aquatic ecosystems were evaluated and the applicability of fish-based longitudinal connectivity models used in developed countries was analyzed. For these purposes, we analyzed the current status of research on longitudinal connectivity and structural problems, fish monitoring methodology, monitoring approaches, longitudinal disconnectivity of fish movement, and biodiversity. In addition, we analyzed the current status and some technical limitations of physical habitat suitability evaluation, ecology-based water flow, eco-hydrological modeling for fish habitat connectivity, and the s/w program development for agent-based model. Numerous references, data, and various reports were examined to identify worldwide longitudinal stream connectivity evaluation models in European and non-European countries. The international approaches to longitudinal connectivity evaluations were categorized into five phases including 1) an approach integrating fish community and artificial structure surveys (two types input variables), 2) field monitoring approaches, 3) a stream geomorphological approach, 4) an artificial structure-based DB analytical approach, and 5) other approaches. the overall evaluation of survey methodologies and applicability for longitudinal stream connectivity suggested that the ICE model (Information sur la Continuite Ecologique) and the ICF model (Index de Connectivitat Fluvial), widely used in European countries, were appropriate for the application of longitudinal connectivity evaluations in Korean streams.

최근, 우리나라에서는 하천에 중소형 보(Weir) 및 각종 구조물(어도) 건설이 건설되면서 수생태계의 단절 및 훼손이 보고되고 있고, 이들은 수생태계 건강도에 직접적으로 영향을 주면서 수생태계의 종적 연결성 평가가 중요한 이슈가 되었다. 본 연구에서는 수생태 건강성 확보를 위한 일환으로 수생태계 종적 연결성 평가를 위한 국내외 연구 현황, 선진국의 어류 기반 종적 연속성 평가모델 개발 및 현장 적용성에 대한 분석을 실시하였다. 이를 위해, 우리나라에서 하천의 종적 연결성 현황 및 구조적 문제점, 어류 모니터링 기법 및 현황, 종적 측면의 어류 이동성 단절 및 종 다양성 영향에 대한 현황분석을 하였다. 또한, 물리적 서식지 적합도 평가, 환경생태유량 평가 및 어류 서식처 모의를 위한 생태-수리모델링의 기술적 한계 등에 대한 연구 현황을 분석하였다. 또한, 어류 유영력 기반 이동성 분석 및 행위자 기반(ABM) 어류행동예측 프로그램개발에 대한 현재 기술의 한계성도 제시하였다. 전 세계에서 적용된 하천 종적 연결성 평가모델 및 기법(프로토콜)에 대해 문헌, 자료 및 다양한 모델을 종합적으로 검토한 결과에 따르면, 첫째, 하천 구조물과 어류 유영속도, 점프력 등의 지표 기반 평가기법, 둘째, 직접 현장 어류조사 및 모니터링 기법, 셋째, 하천지형학적 접근방식 평가 기법 및 구조물 기반 DB 구축기법 및 넷째, 하천 연계성 지수 평가법 등으로 분석되었다. 종적 연결성 평가모델의 조사방법론 및 적용성 평가 결과에 따르면, 유럽권의 ICE 모델(Information sur la Continuite Ecologique)과 ICF 모델(Index de Connectivitat Fluvial)을 우리나라에 수정보완하여 적용할 경우 적절할 것으로 평가되었다.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원 수생태계 건강성 확보 기술개발사업의 지원을 받아 연구되었습니다(과제번호: 2020003050004).

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