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      • KCI등재후보

        1967 - '68년 의암인공호에 있어서 식물성플랑크톤의 금계변화

        정영호,계응 한국육수학회 1969 생태와 환경 Vol.2 No.1·2

        In this study, phytoplanktons collected monthly from three stations A, B and C of Ui-am Reservoir for six months (from April through October except July in 1968) were clarified and those were compared with planktons identified previously before the Reservoir was completed. The plankton samples were identified and classified by Engler's Classification System. On this reports, it resulted in 4 phyla, 4 classes, 3 subclasses, 13 orders, 4 suborders, 20 families, 47 genera, 109 species, 29 varieties and 1 form. Of them, 21 species, 9 varieties and 1 form were recorded in this paper for the first time. As a result of the above, 1 class, 3 orders, 2 suborders, 5 families, 11 genera, 56 species are newly added to the phytoplankton flora for the area of the Chun-chon Reservoir. Up to the present, therefore, the phytoplankton flora of this area is reported 239 species which are composed of 185 species, 1 subspecies, 50 varieties, 3 forms belonging to 4 phyla, 4 classes, 3 subclasses, 15 orders, 7 suborders, 29 families, 68 genera For this Reservoir, the total kinds of phytoplankton species in May were the greatest, in September the least. As compared with the number of species occurred in April, May and June in 1967 (when the Reservoir was not completed), the kinds of species of the station C tend to increase and that of station A and B to decrease.

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        漢江의 Microflora에 關한 硏究(第2報) : 春川 및 淸平貯水池를 中心으로 한 漢江의 植物性 plankton과 그 季節的 消長 The phytoplanktons and its seasonal variation in the area of the Chun-chon and the Chung-pyong reservoir of the Han River

        鄭英昊,桂應瑞,朴德煥 한국식물학회 1968 Journal of Plant Biology Vol.11 No.2

        The Han River was investigated monthly from April through Septemher, 1967 at Chunchon reservoir, Shin-yean, So-yang, Chung-pyong reservoir, Yang-soo-ri and Gi-doo-won to clarify the phytoplankton and to study its seasonal variation. At the same time, vertical distribution of phytoplankton was also studied from June through September at Chun-chon and Chung-pyong reservoir. The results obtained are as follows: As the environmental conditions, water temperature, dissolved oxygen, pH, and transparency were determined. The plankton samples collected from six stations were identified and classified by Engler's classification system. It resulted in 4 phyla, 4 classes, 3 subclasses, 13 orders, 27 families, 5 tribes, 71 genera, 222 species, 1 subspecies, 51 varieties and 2 forms. The total number of Phytoplankton identified was 276. Of them, 84 species, 1 subspecies 26 varieties, 2 forms were recorded in this paper for the first time. Considering with the habitat of the total number of phytoplanktons, the highest percentage of Limnoplankton existed in the Chung-pyong reservoir. It suggests that the Chung-pyong reservoir is becoming to have the character of lake. The planktons appeared comnonly during six months at six stations belong to Chrysophyta including 22 species in 11 genera. Among these 22 species. Navicula, consists of 6 species, was the most abundant. The number of species identified uniquely at each station were 5 species in the Chun-chon reservoir, 6 in Chung-pyong and Yang-soo-ri, 8 at Shin-yean, 11 at So-yang, and 18 at Gi-doo-won. The number of species occurred at all stations were 29 in spring, 42 in Autumn and during investigation period. The maximum production of total phytoplankton was generally shown in the late spring and the early fall with differences in quantity at six collecting stations. In the Chun-chon reservoir, the high concentration of approximately 1,190,000 cells per litter in the months of August and September was due to the increase of Chrysophyte genus, Melosira and the highest concentration of approximately 2,000,000 in July at Gi-doo-won was caused Chlorophyte genus, Secenedesmus. The Chun-chon reservoir of three years old was different from the Chung-pyong reservoir of 25 years old with respect to increase in Melosira genus in August and September. After the completion of the Ui-am reservoir, though there was an increase in total density, the number of species of phytoplankton was not changed. It suggests that Ui-am reservoir is similar to the Chun-chon reservoir under the influence of the latter. The density of total phytoplankton was generally high at the depth of 2m to 5m for the two reservoirs.

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