한반도 하구역 부착돌말류의 공간적 분포

서지정보

ㆍ발행기관 : 한국하천호수학회 ㆍ수록지정보 : 생태와 환경 / 51권 / 1호
ㆍ저자명 : 김하경, 조인환, 김영효, 이민혁, 김용재, 원두희, 황수옥, 변정환, 황순진, 김백호

목차

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

영어 초록

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.

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