Table 1 Carbonate system parameters (mean ± SE) registered at each experimental treatment combining two nominal levels of pH (Control = 8.0 and reduced pH ~ 7.7) and temperature dominating in Tongoy Bay, Chile, during the experimental period (14 °C) and under warmer conditions (18 °C).
Carbonate System Parameter | 14 °C | 18 °C | ||
---|---|---|---|---|
pH ~ 8.0 | pH ~ 7.7 | pH ~ 8.0 | pH ~ 7.7 | |
Temperature (°C) | 14.13 ± 0.19 | 14.08 ± 0.14 | 18.13 ± 0.11 | 18.14 ± 0.13 |
Salinity (PSU) | 34.48 ± 1.78 | 35.86 ± 0.50 | 33.28 ± 1.97 | 34.00 ± 0.68 |
pHNBS | 8.058 ± 0.017 | 7.754 ± 0.027 | 8.032 ± 0.041 | 7.720 ± 0.021 |
Total alkalinity (µmol kg−1) | 1580.41 ± 206 | 1778.14 ± 127 | 1666.75 ± 117 | 1695.96 ± 133 |
pCO2 (µatm) | 367.77 ± 62 | 891.26 ± 77 | 435.96 ± 74 | 969.48 ± 74 |
Ωcalcite | 2.07 ± 0.24 | 1.28 ± 0.13 | 2.29 ± 0.09 | 1.25 ± 0.13 |