퇴적층의 온도별 배양에 따른 조류군집 형성과 이취미물질 발생 특성 (Formation of Phytoplankton Community and Occurrences of Odorous Compounds for Sediment Incubation by Water Temperature)

서지정보

· 발행기관 : 한국물환경학회
· 수록지 정보 : 한국물환경학회지 / 31권 / 5호 / 460 ~ 467페이지
· 저자명 : 김용진, 윤석제, 김헌년, 황문영, 박진락, 이병천, 이재관

초록

We analyzed the formation of phytoplankton community and the occurences of odorus compound from benthic cyanobacteria in North, South Han-River, Paldang-Lake and Kyeongan-Stream sediments. Sediments were incubated in different water temperature. Akinetes were found (0~500 cells/g) with the highest number on sediment in Yangsoo railroad bridge (YC). The result showed that Anabaena ranged between 0.02~0.53×103 cells/mL in Sambong (SB), YC, Mukhyen-Stream (MS), Paldang-Lake (P2) and Kyeongan-Stream (KK). The total 68 taxa of phytoplankton were observed during the incubation period. A standing crop of phytoplankton was in the range of 0.13~8.97×103 cells/mL and Microcystis appeared in SB, YC, P2 and KK sites with 20~25°C temperature. In South Han-River (P3), Oscillatoria tenuis was dominant at 25°C temperature. The concentration of geosmin was the highest in SB-15°C (25.5 ng/L), and the concentration of 2-MIB was the highest in P3-25°C (286.8 ng/L). Odorous compounds were detected in all the temperature conditions from each site. Our results indicate that the dominant benthic cyanobacteria (O. tenuis, O. limosa, Phormidium tenue and Pseudanabaena limnetica) have high correlation with the occurrence odorous compounds and 2-MIB.

영어초록

We analyzed the formation of phytoplankton community and the occurences of odorus compound from benthic cyanobacteria in North, South Han-River, Paldang-Lake and Kyeongan-Stream sediments. Sediments were incubated in different water temperature. Akinetes were found (0~500 cells/g) with the highest number on sediment in Yangsoo railroad bridge (YC). The result showed that Anabaena ranged between 0.02~0.53×103 cells/mL in Sambong (SB), YC, Mukhyen-Stream (MS), Paldang-Lake (P2) and Kyeongan-Stream (KK). The total 68 taxa of phytoplankton were observed during the incubation period. A standing crop of phytoplankton was in the range of 0.13~8.97×103 cells/mL and Microcystis appeared in SB, YC, P2 and KK sites with 20~25°C temperature. In South Han-River (P3), Oscillatoria tenuis was dominant at 25°C temperature. The concentration of geosmin was the highest in SB-15°C (25.5 ng/L), and the concentration of 2-MIB was the highest in P3-25°C (286.8 ng/L). Odorous compounds were detected in all the temperature conditions from each site. Our results indicate that the dominant benthic cyanobacteria (O. tenuis, O. limosa, Phormidium tenue and Pseudanabaena limnetica) have high correlation with the occurrence odorous compounds and 2-MIB.

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