Korean Journal of Environment and Ecology (한국환경생태학회지)

Korean Society of Environment and Ecology (한국환경생태학회)
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Benthic Marine Algal Flora and Community Structure of Eocheongdo in Western Coast of Korea

한국 서해 어청도 해조상 및 군집구조

  • Kim, Young Sik (Dept. of Marine Biotechnology, Kunsan Nat'l Univ.) ;
  • Yang, Eun A (Dept. of Marine Biotechnology, Kunsan Nat'l Univ.) ;
  • Nam, Ki Wan (Dept. of Marine Biotechnology, Kunsan Nat'l Univ.)
  • 김영식 (군산대학교 해양생물공학과) ;
  • 양은아 (군산대학교 해양생물공학과) ;
  • 남기완 (군산대학교 해양생물공학과)
  • Received : 2013.08.30
  • Accepted : 2013.12.17
  • Published : 2013.12.31
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Abstract

This study was carried out to investigate the community structure and biomass of benthic marine algae at the intertidal and subtidal zones of Eocheongdo on the western coast of Korea seasonally from July 2008 to April 2009. Total 101 species including 12 of green algae, 23 of brown algae and 66 of red algae were collected and identified. Among these species, 19 species were found throughout the year. The dominant species which contributed significantly to the total biomass were Corallina pilulifera, Gelidium elegans, Sargassum thunbergii, Sargassum fusiforme, Saccharina japonica, Sargassum honeri and Sargassum filicinum. Annual seaweed biomass in dry weight was $237.5gm^{-2}$ and maximum biomass was recorded seasonally in winter ($272.1gm^{-2}$), while minimum was recorded in summer ($204.5gm^{-2}$). The number of species and biomass of the subtidal zone were greater than those of the intertidal zone. The number of species and biomass in Eocheongdo seem to be higher than those of other islands in the western coast of Korea, due to the environmental conditions characterized by the increased transparency, and the well established rocky shore.

한국 서해안 어청도에서 조간대와 조하대에 생육하는 해조류의 생물량과 군집구조를 조사하기 위하여 2008년 6월부터 2009년 4월까지 계절별로 총 4회 현장 조사를 수행하였다. 조사결과 녹조류 12종, 갈조류 23종, 홍조류 66종이 출현하여 총 101종 채집되어 동정되었다. 이중 19종은 일 년 내내 출현하였다. 총 생물량의 많은 부분을 차지하고 있는 우점종은 작은구슬산호말(Corallina pilulifera), 우뭇가사리(Gelidium elegans), 지충이(Sargassum thunbergii), 톳(Sargassum fusiforme), 다시마(Saccharina japonica) 괭생이모자반(Sargassum honeri), 고사리모자반(Sargassum filicinum)이었다. 연간 평균 건중량은 $237.5gm^{-2}$이었으며, 최대값은 겨울에 $272.1gm^{-2}$, 최소값은 여름에 $204.5gm^{-2}$을 기록하였다. 조하대에서의 출현종과 생물량은 조간대에 비하여 많았다. 어청도에서 출현종수와 생물량은 투명도가 낮은 한국 서해 연안의 일반적 특성과 반대로 높은 투명도와 자연 암반의 발달로 인하여 한국 서해안의 다른 도서에 비하여 높은 것으로 보인다.

Keywords

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