Abstract
Salinity and temperature are two of the major factors controlling the growth rate of microalgae. In this study, the effect of salinity and temperature on the growth of marine microalgae; Chlorella capsulata and Skeletonema costatum were investigated to optimize the microalgal biomass production. These species were cultured at different salinities (20, 25 and 30 ‰) and temperatures (20, 25 and 30°C). Skeletonema costatum and Chlorella capsulata had significantly higher (p<0.05) growth rate when cultured at salinities of 30 and 25 ‰, respectively. In terms of temperature, the highest (p<0.05) growth rate was observed in Skeletonema costatum and Chlorella capsulata cultivated at temperatures of 30 and 25°C, respectively. This study indicated that Skeletonema costatum was suitable to marine condition, whereas Chlorella capsulata showed optimum growth at lower salinity and temperature. In addition, can be concluded, Chlorella capsulata and Skeletonema costatum can be considered as suitable species for large outdoor micro algal cultivation.International Journal of Life Sciences 10 (1) : 2016; 40-44
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