새만금 방조제공사로 인한 조하대 환경과 저서동물 군집 변화

• Published in: Ocean and polar research Vol. 28; no. 4; pp. 369 - 383
• Main Authors: 안순모, 이재학, 우한준, 구본주, 이형곤, 유재원, 제종길, An, Soon-Mo, Lee, Jae-Hac, Woo, Han-Jun, Koo, Bon-Joo, Lee, Hyung-Gon, Yoo, Jae-Won, Je, Jong-Gil
• Format: Journal Article
• Language: Korean
• Published: 한국해양과학기술원 01.12.2006
• Subjects: 해양학; subtidal community; macrofauna; soft bottom; benthic environment; Saemangeum benthic ecosystem
• ISSN: 1598-141X; 2234-7313

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.