Cadmium 함유수가 Microcosm 내의 개체군 동태에 미치는 영향 = Effect of Cadmium Dissolved Water to Individual Movement in the Microcosm

다국어 초록 (Multilingual Abstract)

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.