Popis: |
Effects of salinity and temperature on the population growth of the marine phytoplankton,Chlorella saccharophila, were examined in order to find out the optimum levels of these factorsaffecting its growth.Salinity experiments were conducted at 14 levels from 0 to 60% under 22 to 25°C, with a 12L:12D photoperiod. The Chlorella population grew well at salinities between 15 and 35%, andthe best growth was found at 25%. The algae grew slowly under the salinities of 5, 45, 50, and55%, but exhibited almost no growth in 0 and 60%.In the case of the temperature experiments, 7 levels, with 5°C intervals, between 14 to 32°Cwere prepared under a salinity of 25% and a photoperiod of 12L:12D. The algae grew well at17, 20, and 23°C; but grew slowly at 26, 29, 32 and 14°C. The best growth was found around20~23°C. |