Table 1 System parameters used in the chemostat experiments
Parameter | Description | Carbon-limited chemostats | Light-limited chemostats | Units |
|---|---|---|---|---|
D | Dilution rate | 0.011 | 0.011 | h−1 |
I in | Incident irradiance | 50 | 25 | μmol photons m−2 s−1 |
z m | Mixing depth | 0.05 | 0.05 | m |
K bg | Background turbiditya | 8 to 12.5 | 4 to 9 | m−1 |
T | Temperature | 21.5 | 21.5 | °C |
a | Gas flow rate | 25 | 25 | l h−1 |
γ | Constant of proportionality for gas influxa | 1.4 × 10−4 to 2.0 × 10−4 | 1.4 × 10−4 to 2.0 × 10−4 | l−1 |
pCO2 | Partial pressure of CO2 in gas inflow | 200 | 1000 to 1250 | p.p.m. |
[CO2]in | Concentration of dissolved CO2 at influx | 8 | 29 | μmol l−1 |
[CARB]in | Summed concentration of bicarbonate and carbonate at influx | 500 | 2000 | μmol l−1 |
ALKin | Alkalinity at influx | 0.80 | 2.1 | mEq l−1 |