Fig. 6.

Cell density during the short-term acclimation experiment with N. salina. Flow rates of liquid media were switched simultaneously with changing the concentration of CO₂ supplied such that cultures receiving high CO₂ always had about twice the flow rate (and twice the growth rate) as cultures receiving low CO₂ in order to maintain constant cell densities. Starting cell densities for the high CO₂ cultures were a little higher than for the low CO₂ culture, but densities did not change after the CO₂ switched. Error bars represent the SE of the mean, n = 3