The growth potential of single-celled marine Chlorophycean microalgae in modified saline karst water culture media

Abstract

Chlorella sp. and Nannochloropsis sp. as two common single-celled marine Chlorophycean microalgae were cultivated in modified saline karst water culture media. The survival and growth of those two microalgae were the objectives of this study. There were three different modified nutrients in saline karst water applied for Chlorella sp. and Nannochloropsis sp. cultivation. The result shows that the highest density of Chlorella sp. was shown on the fourth day, but dropped sharply to the tenth day, and had the potential to increase at the end of the observation. The highest density of Nannochloropsis sp. was reached on the sixth day, then decreased slightly and stabilized, even showing an increase at the end of the observation. Overall, Chlorella sp. and Nannochloropsis sp. showed different adaptation patterns for survival and growth on modified saline karst water culture media.