| Title |
Identification of Algal Growth Limiting Nutrient in some Artificial Lakes of Korea by Algal Growth Potential Spike Test |
| Authors |
박혜경 ; 이문호 ; 류재근 ( Hae Kyung Park ; Mun Ho Lee ; Jae Keun Ryu ) |
| Abstract |
Algal Growth Potential spike tests for Paldang reservoir, lake Soyang, lake Chungju, lake Daecheong were carried out in order to identify algal growth limiting constituents, determine biological availability of algal growth limiting nutrients, and quantify the biological response to changes in concentrations of algal growth limiting constituents. Lake Chungju, South Han river and North Han river of Paldang reservoir were identified as extremely phosphorus-limited waters for algal growth. In lake Daecheong and lake Soyang, the primary limiting nutrient is phosphorus and when 0.050 ㎎P/ℓ is added limiting nutrient changed to nitrogen. Among the tested lakes, Kyungan river and Daecheong lake waters supported much increases in biomass up to 0.734 and 0.640㎎ dry weight of Selenastrum capricornutum/ℓ respectively due to the each ㎍ P/ℓ addition if other constituents are in excess. |