Fig. 7
From: Advantageous characteristics of the diatom Chaetoceros gracilis as a sustainable biofuel producer
Open-air large-scale cultivation of C. gracilis. a Changes in cell density. DT designates doubling time between two consecutive time points. b Changes in ambient air, water temperatures, and irradiance (green, black, and red lines, respectively). c Changes in pH, salinity, and volume of culture medium (black, red and blue lines, respectively). Experiment performed from August 3 to 7, 2015