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철원북방 DMZ 내의 중영양호 토교저수지의 생태학적 연구 5. 경안천 ( 팔당호 ) 과 토교저수지에서 식물플랑크톤의 크기별 현존량과 Chlorophyll α 의 계절 변동
한명수(Myung Soo Han),최영길(Yong Keel Choi),김세화(Se Wha Kim),이경(Kyung Lee),유광일(Kwang Il Yoo),이후랑(Hu Rang Lee),홍성수(Sung Su Hong),김영옥(Young Ok Kim) 한국환경생물학회 2002 환경생물 : 환경생물학회지 Vol.20 No.1
N/A With physico-chemical environmental factors such as temperature, DO, pH, conductivity and nutrients, size fractionated of phytoplankton standing crops and chlorophyll α concentrations(>8㎛, 3∼8㎛ and <3㎛) and their relationships were investigated at each station of Kyungan Stream and Togyo Reservoir from April to November in 1997. The two sampling sites showed different nutrient status: Kyungan Stream was eutrophic, while Togyo Reservoir was mesotrophic. Large sizes of phytoplankton and chl. α were higher in Kyungan Stream, opposite to those of Togyo Reservoir; Standing crops of phytoplankton(>8㎛) and chl. α(3∼8㎛) were high in Kyungan Stream, while phytoplankton(3∼8㎛) and chl. α(<3㎛) were abundant in Togyo Reservoir. These results imply that phytoplankton community in the highly eutrophicated water mainly comprised the large filamentous and/or colonial algae, such as Microcystis spp. and Aphanizomenon flos-aquae, which easily enriched by nutrients loading.