Table 1. Experimental parameters (mean±SD), monitored each day of each 4-day pCO2 incubations (n = 4) beside TA, which was sampled at the end of each experiment (n = 1).
Measured Input Parameters | Calculated (n = 4) | ||||||||||||
T [°C](n = 4) | TP [µmolkg−1](n = 4) | TSi [µmolkg−1](n = 4) | pH (NBS)(n = 4) | DIC [µmolkg−1](n = 4) | TA [µmolkg−1](n = 1) | TA[µmol kg−1] | pCO2[µatm] | CO2(aq)[µmol kg−1] | HCO3 –[µmol kg−1] | CO3 2−[µmol kg−1] | ΩCa | Revelle factor | |
pCO2 treatment | |||||||||||||
432 µatm | 25.9±0.2 | 0.08±0.01 | 27.19±0.28 | 8.22±0.01 | 2343±43 | 2710 | 2709±43 | 432±17 | 12.0±0.5 | 2060±41 | 271±5 | 6.52±0.12 | 9.54±0.12 |
1141 µatm | 26.0±0.4 | 0.04±0.01 | 23.31±0.58 | 7.85±0.01 | 2468±21 | 2622 | 2617±23 | 1141±28 | 31.5±0.8 | 2307±20 | 129±3 | 3.11±0.08 | 14.12±0.16 |
2151 µatm | 25.9±0.4 | 0.09±0.01 | 23.51±0.86 | 7.60±0.03 | 2603±36 | 2651 | 2654±28 | 2151±179 | 59.2±4.5 | 2465±35 | 78.7±3.7 | 1.90±0.09 | 16.81±0.17 |
Abbreviations: TP = total phosphorus, TSi = total silicate, DIC = dissolved inorganic carbon, TA = total alkalinity, pCO2 = partial pressure of CO2, ΩCa = saturation state of calcite, Revelle factor = (ΔCO2(aq)/CO2(aq))/(ΔDIC/DIC).
All measured input parameters, beside TA, were used for CO2SYS calculations.