하천 내 물리적 서식처의 생물학적 평가를 위한 저서동물 하천하상지수(BMSI)의 개발

Development of Benthic Macroinvertebrates Streambed Index (BMSI) for Bioassessment of Stream Physical Habitat

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  • ABSTRACT

    This study was conducted to develop a Benthic macroinvertebrates streambed index (BMSI) based on the response of the community to the substrate type of streambed. Analyzing the seasonal (Spring and Fall) data (11,367 sampling units) surveyed and collected during 2008~2014 at 960 sites in South Korea, we estimated the lithophility of 191 taxa. BMSI was composed of the lithophilic value, indicator weight value and individual abundance frequency. It showed an extremely significant correlation (r = -0.8, p<0.001) with the mean grain size (in phi-value) of the streambed.

  • KEYWORD

    Benthic macroinvertebrates , BMSI , Physical habitat , Streambed , Substratum