Table 3. Seawater carbonate chemistry parameters estimated in experimental tanks and mixing sumps for each CO2 level in both experiments.
| CO2 level | Temp (°C) | pH NBS/NIST | pCO2 (ppm) | DIC (μmol/KgSW) | TA (μmol/Kg SW) | ΩArag |
|---|---|---|---|---|---|---|
| High | ||||||
| Tank | 25.58 | 7.70 | 936 | 2109.95 | 2245.28 | 1.52 |
| (0.58) | (0.02) | (13.86) | (1.65) | (0.04) | ||
| Sump | 25.58 | 7.70 | 936 | 2108.72 | 2243.99 | 1.51 |
| (0.59) | (0.03) | (11.87) | (2.71) | (0.01) | ||
| Medium | ||||||
| Tank | 25.58 | 7.86 | 540 | 2036.55 | 2241.37 | 2.13 |
| (0.58) | (0.03) | (13.77) | (2.06) | (0.05) | ||
| Sump | 25.58 | 7.86 | 540 | 2036.34 | 2241.15 | 2.11 |
| (0.59) | (0.04) | (12.57) | (8.41) | (0.02) | ||
| Ambient | ||||||
| Tank | 25.58 | 8.16 | 380 | 1862.20 | 2236.27 | 3.74 |
| (0.58) | (0.02) | (12.09) | (3.96) | (0.08) | ||
| Sump | 25.58 | 8.16 | 380 | 1865.6 | 2240.11 | 3.74 |
| (0.59) | (0.03) | (12.45) | (4.65) | (0.02) | ||
PCO2 = partial pressure of CO2; DIC = Total dissolved inorganic carbon; TA = Total alkalinity; ΩArag: Aragonite saturation state. Salinity of 34.46 was used for the calculations using the CO2SYS computer software. Values are means [n = 12 (3 samples collected every 4 hours during a 24 hr period)] ± SE.