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SLS ( Sodium Lauryl Sulfate ) 가 Microcosm 내의 개체군 동태에 미치는 영향
위인선(In Sun Wui),이종빈(Jong Bin Lee),수등융일,도삼유평,조경(Kyung Cho),나명석(Myung Suk Ra),위성욱(Seong Uk Wui) 한국환경생물학회 1998 환경생물 : 환경생물학회지 Vol.16 No.3
We investigated each individual movement in the microcosm when synthetic detergent, SLS (sodium lauryl sulfate), was inflowed in the system. The microcosm is one of a small model ecosystem containing biotic species which selected from natural aquatic ecosystem and maintaining as culture system under controlled condition. As a result of inflowing SLS in the system 14 days after subculture (stabilizing stage), individuals of producer Chlorella vulgaris and decomposer Pseudomonas putida were stable at 10.0㎎/ℓ SLS. But, consumer Cyclidium glaucoma was begun to affect at 2.5 ㎎/ℓ SLS and this individual was disappeared in the system at 5.0 ㎎/ℓ SLS. This study was purposed for suggestion to one of environmental assessment method by using model system as investigation of individual movement in the microcosm after treating detergent, one of a aquatic pollutant.
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.
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.