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한강 하류 수역의 식물플랑크톤의 계절적 분포와 우점종에 관한 연구
문병렬,이옥민 경기대학교 부설 기초과학연구소 2005 경기대학교 기초과학논문집 Vol.18 No.1
We investigated seasonally the distribution of phytoplankton and physico-chemical factors at four stations of downstream water in Han-river from April to October 2004. The phytoplankton collected in this study was totally 135 taxa that belongs to 4 phylums 4 classes 13 orders 5 suborders 19 families 2 subfamilies 52 genera 120 species 1 subspecies 14 varieties. Chrysophytes revealed to the dominant division that they occupied 72 taxa as 53.3% among totally occurring taxa. The indicator of clean water was Surirella splendida, and the indicator of pollition water was 20 taxa including Oscillatoria formosa in this study. In the seasonal analysis of water quality and phytoplanktons, it was appeared that the downstream waters of Han-river was polluted deeply at summer and autumn.
Sujeong Min,Si Woo Lee,Byeong-Ryeol Choi,Chang Gyu Park,Si Hyeock Lee,Deok Ho Kwon 한국응용곤충학회 2014 한국응용곤충학회 학술대회논문집 Vol.2014 No.10
Nilaparvata lugens Stål is one of the important migratory pests of rice paddy fields in Korea. Resistance levels to nine insecticides were monitored in 12 local strains and correlation analysis was conducted to determine cross-resistance relationships among the tested insecticides. The local strains revealed 1.3- to 28.0-, 1.6- to 6.0-, 2.8- to 237.0-, 0.6- to 0.9-, and 0.7- to 1.3-fold resistance to carbamates, organophosphates, neonicotinoids, fipronil and etofenprox, respectively. Organophosphates revealed moderate correlations with benzofuranyl methylcarbamate (r = 0.566 - 0.614, p > 0.01). Three neonicotinoids were not correlated each other, but imidacloprid and clothianidin were moderately correlated with several benzofuranyl methylcarbamate and organophosphate insecticides (r = 0.590 - 0.705, p > 0.05), indicating that unknown common factors (such as detoxification enzymes) might contribute to resistance to both insecticides. Fipronil and etofenprox exhibited low levels of resistance and cross-resistance with other insecticides, suggesting their potential as an effective insecticide for field application. Resistance level monitoring and correlation analysis would be valuable for the selection of appropriate insecticides to control insecticide-resistant N. lugenes, a typical migratory pest in Korea.
한국산 미기록종을 포함한 팔장고말속식물 (녹조식물)에 대한 분류학적 연구
문병렬 ( Byeong Ryeol Moon ),이옥민 ( Ok Min Lee ) 한국하천호수학회 2004 생태와 환경 Vol.37 No.3
While more than 1,000 taxa in Staurastrum were found worldwide, in Korea only 119 taxa, of 68 species 42 varieties 9 forms, were reported so far. In this study, 23 taxa (19 species 4 varieties) of Staurastrum were collected from 15 freshwaters in Korea from Feb. through Nov., 2003. Among these taxa, 12 were newly recorded to Korea. Therefore, the total number of Staurastrum in Korea should be 131 taxa, of 77 species 45 varieties 9 forms, adding 12 newly found taxa. Most of the collected species were coincided with the characteristics previously described, but the sizes of 8 taxa including S. affine were smaller than those previously described. The 7 taxa including S. cerastesa have shown a little dissimilarity in the morphology of semicell and the decoration of cell wall.