Table 2.
Environmental conditions for the experimental treatments for the duration of the experiment: salinity, temperature, pH (total), and alkalinity were measured; dissolved inorganic carbon (DIC), bicarbonate ion (HCO−3), carbonate ion (CO2−3) and aqueous CO2 concentrations, pCO2 and saturation states of calcite (ΩCal) and aragonite (ΩArg) were calculated using CO2sys.
| Control | Mid CO2 | High CO2 | |
|---|---|---|---|
| Salinity | 30.2 (±0.2) | 30.1 (±0.1) | 30.2 (±0.0) |
| Temp (°C) | −1.65 (±0.0) | −1.65 (±0.0) | −1.65 (±0.0) |
| pHT | 7.999 (±0.006) | 7.719 (±0.011) | 7.388 (±0.007) |
| Alkalinity (μmol kg−1) | 2146.5 (±50.0) | 2149.5 (±12.0) | 2068.7 (±59.8) |
| DIC (μmol kg−1) | 2072.6 (±50.0) | 2150.1 (±13.3) | 2161.1 (±62.4) |
| HCO−3 (μmol kg−1) | 1977.7 (±48.0) | 2057.6 (±12.5) | 2025.9 (±58.6) |
| CO2-3 (μmol kg−1) | 66.6 (±1.5) | 36.2 (±0.8) | 16.7 (±0.6) |
| CO2 (μmol kg−1) | 28.4 (±1.0) | 56.3 (±1.6) | 118.5 (±3.7) |
| pCO2 (μatm) | 412.0 (±13.5) | 817.6 (±22.9) | 1722.9 (±54.2) |
| ΩCal | 1.64 (±0.03) | 0.89 (±0.02) | 0.41 (±0.02) |
| ΩArg | 1.02 (±0.02) | 0.55 (±0.01) | 0.26 (±0.01) |
Values are mean ± 1 standard deviation.