Table 1. Seawater parameters for the three different pH treatments.
| pHNBS | T (°C) | Sal | AT (µeq kg−1) | pCO2 (µatm) | ΩCa | ΩAr |
| 8.12±0.06 | 20.5±1 | 35.38±0.06 | 2073±4 | 413 | 3.674 | 2.392 |
| 7.80±0.01 | 20.5±1 | 35.38±0.06 | 2073±4 | 952 | 1.949 | 1.269 |
| 7.60±0.01 | 20.5±1 | 35.38±0.06 | 2073±4 | 1572 | 1.277 | 0.831 |
pHNBS, temperature (T), salinity (Sal) and total alkalinity (AT) were measured directly and used to compute partial pressure levels of carbon dioxide (pCO2) and seawater saturation states for calcite and aragonite (ΩCa and ΩAr respectively) using CO2SYS. Means ± S.E.