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Cadmium 함유수가 Microcosm 내의 개체군 동태에 미치는 영향
위인선,이종빈,수등융일 (須藤隆一),도삼유평 (稻森悠平),조경,나명석,위성욱 ( In Sun Wui,Jong Bin Lee,Ryuichi Sudo,Yuhei Inamori,Kyung Cho,Myung Seok Na,Seong Uk Wui ) 한국환경생물학회 1997 환경생물 : 환경생물학회지 Vol.15 No.2
This study was conducted to provide environmental assessment method to the effect of chemical using aquatic model ecosystem. Microcosm is one of the culture system containing three species bioorganism, Chlorella vulgaris as a producer, Cyclidium glaucoma as a consumer, Psendomonas putida as a decomposer. This system is very simple, stable small-size ecosystem and shows high reproductivity and reflectivity to the natural ecosystem. It is purposed for evaluating 1) analysis method of population fluctuation, 2) culture condition, based on characteristics of individual species that selected from natural water. In order to investigate what variation bring out in the system after addition of cadmium in the culture system, population fluctuation was analyzed. When each species cultured in microcosm containig cadmium, it began to be affected by Cd 50 ㎎/ℓ Chlorella vulgaris, 0.5 ㎎/ℓ Cyclidium glaucoma, 5.0 ㎎/ℓ Pseudomonas putida in early time of culture.
위인선,전순배,이종빈,나명석 ( In Sun Wui,Soon Bai Chun,Jong Bin Lee,Myung Suk Ra ) 한국환경생물학회 1993 환경생물 : 환경생물학회지 Vol.11 No.1
The factor analysis was applied to examine the effects of enviromental conditions on microbial populations in Kwangyang Bay from February to December, 1990. For this purpose, 17 abiotic and biotic parameters were determined for samples obtained from fifteen sites. Ecosystem in Kwangyang bay was regulated by 5 factors for four season. The microbial population was influenced mainly by the inflow fresh water, nitrogenous nutrients and water temperature. The overall size of microbial population was greater than that obtained in 1982.
수환경오염에 대한 수서곤충 (水棲昆蟲) 지표종에 (指標種) 관한 연구 - 영산강을 중심으로 -
위인선,나철호,이종빈,백순기 ( In Sun Wui,Chul Ho Ra,Jong Bin Lee,Soon Ki Baik ) 한국환경생물학회 1991 환경생물 : 환경생물학회지 Vol.9 No.1
Aquatic insects were researched from 18 sites in the Yongsan River System from August, 1988 to July, 1989. The monthly distribution and distributional pattern of the aquatic insects according to the environmental factors were investigated. Sensitivity, tolernace range and pollution tolerance index associated with each species were investigated. Also in order to use as a indicator organism, 36 species were selected and optimal BOD value and realtive frequencies of occurence were computed and examined. Polution tolerance indicies of mayflies ranged from 0.5∼5, stonflies from 0 to 2, caddisflies from 0 to 3.5, beetles from 1.5 to 3.5 and flies from 0 to 5. Chironomus showed the highest optimal BOD value of 23.7㎎/ℓ, and at that concentration the realtive frequency was 48.7, but it was represented by from 0.8 to 12.7㎎/ℓ and 17.4 to 57.2% in other species. Bioindicators were Drunella aculea, D. criptomeria of Ephemeroptera, Yoraperla KUa, Pteronarcys sacchalina, Archynopteryx KUa, Perlodes sp., Megarcys ochracea, Kiotina decorata, Sweltsa nikkoensis, Taenionema KUa, T. CUa of Plecoptera, Rhyacophila of Trichoptera, Tipula, Eriocera and Anthoca of Diptera in Ⅰ degree, and Serratella rufa and Chironomus in Ⅳ degree of water quality.
조류생산잠재력조사 방법개발에 의한 육수환경의 부영양화 방지대책에 관한 연구(I) -순수분리종의 형태 및 증식특성-
위인선,나철호,이종빈,주현수 한국환경보건학회 1997 한국환경보건학회지 Vol.23 No.1
The isolation, morphological study and growth characteristics of the algae were investigated from Lake Chuam. The isolated algae were applied the Agal Growth Potential test. The method of isolation and purification of the algae were used to Agar plating(AP), nutrient enrichment(NE), dilution(DI) and micro capillary technique(MC). Total isolated algae were 21 species. They were composed of Cyanophyceae, Dinophyceae, Bacillariophyceae, Euglenophyceae and Chlorophyceae. The numbers of algal strain by isolation technique were highest in dilution(21 species), and those of the rests were showed in order of NE > MC > AP. The sizes of isolated Selenastrum and Scenedesmus were $1.8\pm 1.4 \mu m$, $3.3\pm 0.9 \mu m$ in diameter and $6.4\pm 2.3 \mu m$, $13.6\pm 1.9 \mu m$ in length respectively. The morphology of isolated algae and NIES-collection strain was very similar each other, but the size was smaller isolated algae than that of NIES-collection. The optimum culture condition of isolated Selenastrum and Scenedesmus was about 30$\circ$C(25$\circ$C-35$\circ$C) in temperature and the maximum growth was appeared between 7,000 lux and 8,000 lux in the light intensity. The comparison of $\mu$(specific growth rate) on the concentration of nutrients such as nitrate and phosphate, isolated Selenastrum was appeared maximum it at 1.0 mg $NO_3-N/l$ but NIES-collection strain was showed 95% of maximum it at same nitrate concentration. Maximum g of isolated algae and NIES-collection strain in Scenedesmus onto nitrate concentration were very similar with the result of selenastrum. The specific growth rates of isolated algae and NIES-collection strain on the gradient concentration of phosphate were showed 0.72/day and 0.70/day at 0.02 mg $PO_4-P/l$ in Selenastrum but those of Scenedesmus were appeared 0.61/day and 0.57/day at same concentration $PO_4-P$.