Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
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Benthic Environment and Macrofaunal Community Changes During the Dike Construction in Saemangeum Subtidal Area, Korea

새만금 방조제공사로 인한 조하대 환경과 저서동물 군집 변화

  • An, Soon-Mo (Division of Earth Environmental System, Pusan National University) ;
  • Lee, Jae-Hac (Marine Environment Research Department, KORDI) ;
  • Woo, Han-Jun (Marine Environment Research Department, KORDI) ;
  • Koo, Bon-Joo (Marine Environment Research Department, KORDI) ;
  • Lee, Hyung-Gon (Marine Environment Research Department, KORDI) ;
  • Yoo, Jae-Won (Korea Institute of Coastal Ecology, Inc., Department of Oceanography, Inha University) ;
  • Je, Jong-Gil (The National Assembly of the Republic of Korea)
  • 안순모 (부산대학교 지구환경시스템학부) ;
  • 이재학 (한국해양연구원 해양환경연구본부) ;
  • 우한준 (한국해양연구원 해양환경연구본부) ;
  • 구본주 (한국해양연구원 해양환경연구본부) ;
  • 이형곤 (한국해양연구원 해양환경연구본부) ;
  • 유재원 (인하대학교 해양과학과 한국연안환경생태연구소) ;
  • 제종길 (대한민국국회)
  • Published : 2006.12.31
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Abstract

The Saemangeum project is one of the biggest reclamation efforts in Korea and may cause coastal ecosystem change due to altered environments and habitat loss. Since February 2002, benthic environment and community structure in the Saemangeum studied area were studied to assess the influence of the project on macrofaunal community. The result of seasonal study from February, 2002 to August 2005 is reported here. Overall, changes of species numbers and dominant species of benthic animals in the periods before (1988) and after $(2002{\sim}2005)$ the Saemangeum dike construction were not evident both inside and outside the dike. However, local environmental and community change were noted The partial completion of Saemangeum dike $(4^{th}\;dike)$ in June 2003 altered water circulation and sediment deposition patterns both inside and outside the dike. Fine sediment was accumulated inside and outside the $4^{th}$ dike while coarse sediment dominated near the main channel (Sinsi gate). Benthic community resl)ended to the altered sediment type in these areas. Species number and diversity in both site was low compared to other sites. The dominant species in these areas were composed of the benthos that had not commonly occurred in the Saemangeum subtidal area.

Keywords

References

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