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주암호의 연간 ('93) 식물플랑크톤의 분포 및 현존량의 동태
이옥민,송호영 ( Ok Min Lee,Ho Young Song ) 한국하천호수학회 1995 생태와 환경 Vol.28 No.4
The distribution and standing crops of phytoplankton were ivnestigated seasonally at 5 stations in Juam lake in 1993. It was identified as total 175 taxa, and consists of 31 families, 59 genera, 151 species, 19 varieties, 4 forma and I unidentified species according to Engler`s classifi-cation system. The dominant species were Microcystis aeruginosa, Staurastrum longi-radiatum, Eudorina unicocca, Fragilaria crotonensis, Melosira ambigua and Cyclotella stelligera. The standing crops was the highest value in summer because of the appro-priate condition for the photosynthesis in irradiation and temperature. It was estimated that the nutrient level was changing from oligotrophic to eutrophic state as for the dominant species.
부착규조류를 이용한 남한강 하류수계의 생물학적 수질평가
이옥민 경기대학교 기초과학연구소 2008 기초과학논문집 Vol.21 No.-
The study was the research about the epilithic diatoms and physco-chemical factors at 5 sites of South Han river. The density of Chlorophyll-a showed from site 2 showing the highest value and the rest sites showed 12.9-10.9ug·cm^(-2), its values are a relatively low value from site 2. The values of T-N was 2.494-4.037mg·ℓ^(-1), showing from site 4 the highest value. T-P was 0.017-0.041mg·ℓ^(-1) showed the highest value from site 4. Site 5 from the DAIpo was 81.2, showing the highest value and rest of sites was from 41.6-57.0. When DAIpo was divided into grades from A to D, site 5 was B, the rest sites were C. In the grades of TDI, site 1 and 2 were grade C, site 3 and 4 showed grade D, and site 5 showed grade B. As shown above, DAIpo and TDI did not match in site 3 and 4, and the water was relatively polluted compared to la and Ib in BOD. The difference among BOD DAIpo, and TDI signifies that there has been a change in the indicator community, It can be concluded for DAIpo and TDI to be used together to determine the water pollution because DAIpo is instable with the water quality determination of the water mixed area.
Additions to the six taxa of the genus Cosmarium (Desmidiaceae, Charophyta) in Korea
이옥민 한국생태학회 2015 Journal of Ecology and Environment Vol.38 No.4
The samples were collected at lowland swamps, reservoirs, mountainous wetlands, and sphagnum bogs from 2012 to 2014. The followings were newly recorded in Korea: two species, three varieties, and one form, including six taxa of the genus Cosmarium. The newly recorded Korean species were Cosmarium bioculatum var. hians, C. bireme, C. pseudobiremum, C. nitidulum var. pseudorectangulare, C. trilobulatum f. retusum, and C. trilobulatum var. depressum. The flora of the genus Cosmarium contains 303 taxa in total in Korea. The specimens were cultured and deposited on the algal culture collection of Kyonggi University (ACKU) and National Institute of Botanical Resources (NIBR).
이옥민 경기대학교 기초과학연구소 2008 기초과학논문집 Vol.21 No.-
The study was the research about the epilithic diatoms and physco-chemical factors of North Han river and Soyang river of Yuam lake. The density of Chlorophyll-a showed from site 4 showing the highest value and the rest of sites showed 2.0-9.4ug·cm^(-2), and its values are a relatively low value. T-N was 1.67- 6.44mg·ℓ^(-1) showing from site 4 the highest value. T-P was 0.027-0.117mg·ℓ^(-1) showed the highest value from site 3. The DAIpo from Site 1 was 61.5, showing the highest value and rest of sites was from 35.5 to 56.1. When DAIpo was divided into grades from A to D, site 1 and 6 were B, site 2 and 5 were C, and site 3 and 4 were grade D. TDI was the highest; 93.9 from site 4, and the rest sites were 43.1- 78.1. In the grades of TDI, site 1,2,5, and 6 were grade B and site 3 and 4 showed grade D. As shown above, DAIpo and TDI did not match in site 2 and 5, and the water was relatively polluted compared to la and Ib in BOD. The difference among BOD DAIpo, and TDI signifies that there has been a change in the indicator community, It can be concluded for DAIpo and TDI to be used together to determine the water pollution because DAIpo is instable with the water quality determination of the water mixed area.