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Original Article

A Case Study of the Habitat Changes for the Fish Community due to the Restoration of Pool-Riffle Sequence

여울-소 출현 복원을 통한 다양한 어종의 서식처 변화 연구

Heung Sik Choi1
,
Jonggeun Choi2
,
Byungwoong Choi3*
최 흥식1
,
최 종근2
,
최 병웅3*
1Professor, Department of Civil Engineering, Sangji University, Wonju 26339, Korea
2Master Student, Department of Civil Engineering, Sangji University, Wonju 26339, Korea
3Research Professor, OJERI, Korea University, Seoul 02841, Korea
1상지대학교 토목공학과 교수
2상지대학교 토목공학과 석사과정
3고려대학교 오정에코리질리언스 연구원, 연구교수
* Corresponding Author
31 March 2020. pp. 53-62
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Abstract

The present study aimed to investigate the impact of the restoration of the restoration technique on fish habitat using a physical habitat simulation in the Wonju-cheon Stream, Korea. The target species were Pungtungia herzi, Zacco platypus, and Zacco Koreanus, a dominant and sub-dominant species in the Wonju-cheon Stream. The River2D model was used for the computation of the flow and the habitat suitability index model was used to estimate the quality and quantity of habitat using habitat suitability curve. To assess the impact of pool-riffle sequence on change of fish habitat, this present study conducted using the each representative distance, namely, 50 m, 100 m, 200 m, and 300 m. Simulation results indicated that the pool-reffle sequence significantly increased the habitats for the target species than the result without considering pool-riffle sequence. On average, 53% of the Weighted Usable Area (WUA) increased due to pool-riffle sequence in the study area.

Keywords
Physical habitat simulation
Pool-riffle sequence
Restoration technique
River2D model
Weighted Usable Area

본 연구는 복원기법을 다양하게 조성하였을 때 어류의 서식처의 변화를 파악하기 위하여 물리서식처 모의를 수행하였다. 대상 구간은 원주천이며, 대상 어종은 돌고기, 피라미, 참갈겨니를 대상으로 하였다. 흐름 분석은 2차원 모형인 River2D 모형을 사용하였으며, 서식처 분석은 서식처 적합도 곡선을 이용하여 서식처의 양과 질을 산정하는 서식처 적합도 모형을 사용하였다. 생태학적으로 적합한 여울-소 출현에 따른 서식처의 변화를 확인하기 위하여 조성 구간을 50 m, 100 m, 200 m, 300 m으로 설정하였다. 그 결과 대상 어종별로 약간의 차이는 발생하였지만, 여울-소 복원기법을 200 m 구간으로 설정하였을 때 서식처가 현상태와 비교하였을 때 가중가용면적이 약 53% 향상되는 것으로 나타났다.

키워드
물리 서식처 모의
여울-소 출현
복원기법
River2D 모형
가중가용면적
References
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Information
  • Publisher :Korean Society of Ecology and Infrastructure Engineering
  • Publisher(Ko) :응용생태공학회
  • Journal Title :Ecology and Resilient Infrastructure
  • Journal Title(Ko) :응용생태공학회 논문집
  • Volume : 7
  • No :1
  • Pages :53-62
  • Received Date : 2020-02-04
  • Revised Date : 2020-02-25
  • Accepted Date : 2020-02-25
  • DOI :https://doi.org/10.17820/eri.2020.7.1.053
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