금강에서의 조류의 영양염 섭취 속도에 관한 연구

A study on uptake rate of nutrients by algae in the Keum river.

The purpose of this study is to investigate the interrelationship between algae and nutrients in the Keum river. The field survey for sampling was conducted in the Keum river in July, 1998. The relationship between Chlorophyll a and nutrients, maximum uptake rate (Vmax) and maximum specific growth rate (μmax) for ammonia nitrogen and phosphate were obtained through the culture work of phytoplankton in the laboratory. Maximum uptake rates(Vmax) for ammonia nitrogen and phosphate phosphorus is 0.4400㎍-at/ℓ/hr , 0.1652㎍-at/ℓ/hr, respectively. Half-saturation constants for ammonia nitrogen and phosphate phosphorus is 2.6915㎍-at/ℓ/hr, 2.6167㎍-at/ℓ/hr, respectively. Maximum specific growth rate (μmax) for ammonia nitrogen and phosphate phosphorus is 1.0425/hr, 1.5177/hr, respectively. Half-saturation constants for ammonia nitrogen and phosphate phosphorus is 0.0363 mg/l, 0.0442 mg/l, respectively.