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논문 기본 정보

자료유형
학술저널
저자정보
안광국 (충남대학교 생명과학부) 이재연 (충남대학교 생명과학부) 배대열 (충남대학교 생명과학부) 김자현 (충남대학교 생명과학부) 황순진 (건국대학교 환경과학과) 원두희 ([주]생태조사단 부설 두희자연환경연구소) 이재관 (국립환경과학원 환경진단연구부) 김창수 (국립환경과학원 환경진단연구부)
저널정보
한국물환경학회 수질보전 수질보전 제22권 제5호
발행연도
2006.1
수록면
796 - 804 (9page)

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The objective of this research was to develop ecological multi-metric models using natural fish assemblages for a diagnosis of current stream health condition, and apply the model to nationwide lotic ecosystems of the Geum River, the Youngsan River, and the Sumjin River. The ecological stream health model was based on the index of biological integrity (IBI), which was originally developed in North American streams by Karr (1981), and the Rapid Bioassessment Protocol (RBP), which was scientifically established by the US EPA (1999). The metric numbers and metric attributes were partially changed for the regional applications, so the scoring criteria was modified for the assessment. Overall, metric values, based on the IBI calculations, reflected conventional water quality characteristics, based on nutrient regime, and agreed with results of staticeco-toxicity tests. Some stations impaired in terms of stream health were identified by the IBI approach, and also major key stressors affecting the stream health were identified by additional evaluations of physical habitats. Our preliminary results suggested that biological integrity in stream ecosystems was largely disturbed by habitat degradation as well as chemical pollutions. This new approach would be used as a key tool for ecological restorations and species conservations in the degraded aquatic ecosystems in Korea and applied for elucidating major causes of ecological disturbances. Ultimately, this approach provides us an effective management strategy of stream ecosystems through establishments of ecological networks in various watersheds.

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