Figure 2. Oxygen evolution rate of the different algae: A. Padinaaustralis, Halimedasimulans and Mastophorarosea subjected to different treatments 12:12 LD and continuous light 12:12 LL

From

The Daily Light-dark Cycle of Photosynthetic Oxygen Evolution in Three Species of Tropical Calcareous Algae

Alvin P. Monotilla, Serafin M. Geson, Paul Isaac O. Dizon, Danilo T. Dy

Journal of Aquatic Science. 2015, 3(1), 14-18