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Classification of Microhabitats based on Habitat Orientation Groups of Benthic Macroinvertebrate Communities

저서성 대형무척추동물의 서식 특성에 따른 미소서식처 유형화

  • Kim, Jungwoo (Department of Life Science, Kyonggi University) ;
  • Kim, Ah Reum (Department of Life Science, Kyonggi University) ;
  • Kong, Dongsoo (Department of Life Science, Kyonggi University)
  • 김정우 (경기대학교 생명과학과) ;
  • 김아름 (경기대학교 생명과학과) ;
  • 공동수 (경기대학교 생명과학과)
  • Received : 2017.09.25
  • Accepted : 2017.11.27
  • Published : 2017.11.30

Abstract

Many restoration projects are underway to revive disturbed streams. In order to achieve successful stream restoration, a variety of microhabitats should be created to promote biological diversity. Research on biological classification of microhabitats is essential for biological diversity. However, research on classification using only physical environmental factors has been carried out. The purpose of this study is to classify and quantify the microhabitat of the stream by using macroinvertebrates systematically. In this study, eight wadeable streams and four non-wadeable streams were surveyed to identify the benthic macroinvertebrates in these various microhabitats. Among the physical environmental factors (current velocity, water depth, substrate), the particle size of the substrate was the most influential factor in the emergence of the Habitat Orientaion Groups. Among the HOGs, clinger and burrower were highly correlated with physical environment factors and showed the opposite tendency. The distribution of clinger and burrower according to the physical environmental factors showed two tendencies based on the current velocity (0.3 m/s) and water depth (0.4 m). In addition, the particle size of the substrate showed three trends (${\leq}-5.0$, -5.0 < mean diameter ${\leq}-2.0$, > -2.0). Based on the abundance tendency of these two HOGs, the microhabitats were classified into nine types, from a eupotamic microhabitat to a lentic microhabitat. Classification of the microhabitats using HOGs can be employed for creating microhabitats to promote biological diversity in future stream restoration plans.

Acknowledgement

Supported by : 경기대학교

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