Fig. 3.

R* values of the species. (A, B) R* values for CO₂(aq) (A) and bicarbonate (B) of the species, indicative of their competitive abilities for inorganic carbon. R* values were estimated from the CO₂ and bicarbonate concentrations measured in the steady-state monocultures at low pCO₂. (C) Critical light intensities (I*_out) of the species, indicative of their competitive abilities for light. Critical light intensities were estimated from the light intensities penetrating through the steady-state monocultures at high pCO₂. All estimates are based on the mean±SD of the last five data points of each monoculture experiment. Sce, Scenedesmus; Chl, Chlorella; Mic, Microcystis; Mon, Monoraphidium.