With land-use (cover) and water quality, the distributional characteristics of epilithic diatom communities were studied with 193 samples from estuaries of Korean peninsula between 2015 and 2016. Of total 394 taxa classified, Nitzschia perminuta (19.6%) and N. inconspicua (14.0%) were the 1st and 2nd dominant species. Using a cluster analysis, the epilithic diatom communities of Korean estuaries were divided into four groups (G1-G4). Ecological characteristics of each group were followed: G1 was located in estuaries of the East Sea, and characterized by high forest land-use and high DO and low nutrients; G2 was the eastern part of the South Sea, and characterized by low turbidity and nutrients; G3 was the western part of the South Sea, and characterized by high agriculture, low electric conductivity and low salinity; G4 was the Yellow Sea, and characterized by high nutrients. The environmental factors having significant correlation with diatom distributions were as follows: TN to G1, turbidity to G2, agriculture to G3, and TP to G4. Moreover, the important factors affecting the occurrence of indicator species were forest land-use for Fragilaria construens var. venter in G1, turbidity for Rhoicosphenia abbreviata in G2, urban land- use and total phosphorus (TP) for Bacillaria paradoxa and Hantzschia amphioxys of G3, and TP and turbidity for N. ovalis and Stephanodiscus invistatus of G4. These results collectively indicate that the distribution of epilithic diatom communities in Korean peninsula was largely effected by water quality and land cover/use.

Abstract
 서 론
 재료 및 방 법
  1. 조사지점 및 부착돌말 군집분석
  2. 환경요인 조사
  3. 데이터 분석
 결과 및 고 찰
  1. 부착돌말류의 출현특성
  2. 군집 그룹별 환경요인 특성
  3. 부착돌말 분포와 환경요인과의 관계
  4. 부착돌말 분포에 대한 환경요인의 영향
  5. 부착돌말의 출현 예측
 결 론
 References

• 김하경(한양대학교 환경과학과) | Kim, Ha-Kyung (Department of Environmental Science, Hanyang University)
• 조인환(한양대학교 환경과학과) | In-Hwan Cho (Department of Environmental Science, Hanyang University)
• 김영효(한양대학교 환경과학과) | Young-Hyo Kim (Department of Environmental Science, Hanyang University,)
• 이민혁(한양대학교 환경과학과, 생태조사단) | Min-Hyuk Lee (Department of Environmental Science, Hanyang University, Doohee Institute of Ecological Research)
• 김용재(대진대학교 생명과학과) | Yong-Jae Kim (Department of Life Science, Daejin University)
• 원두희(생태조사단) | Du-Hee Won (Doohee Institute of Ecological Research)
• 황수옥(K-waters, Korea Water Resources Corporation) | Su-Ok Hwang (4K-waters, Korea Water Resources Corporation)
• 변정환(국립환경과학원 한강물환경연구소, 한양대학교 생명과학과) | Jung-Hwan Byun (Han River Environment Research Center, National Institute of Environmental Research, Department of Life Science, Hanyang University)
• 황순진(건국대학교 환경보건학과) | Soon-Jin Hwang (Department of Environmental Science, Konkuk University)
• 김백호(한양대학교 생명과학과) | Baik-Ho Kim (Department of Life Science, Hanyang University) Corresponding author