Table 1. Experimental parameters.
| pCO2 treatment | Nutrient | Measured parameters |
Calculated parameters |
Nutrient levels |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DIC (μmol kg−1 SW) | AT (μmol kg−1 SW) | pH(NIST) | Temperature(°C) | Salinity | pCO2 (μatm) | HCO3− (μmol kg−1 SW) | CO2 (μmol kg−1 SW) | CO32−(μmol kg−1 SW) | NH4+ (μΜ) | PO43− (μΜ) | NO3−(μΜ) | ||
| Control | − | 1945.8 (9.59) | 2234.8 (4.71) | 8.01 (0.01) | 28.47 (0.55) | 34.74 (0.13) | 435 (12.44) | 1721.7 (13.66) | 11.3 (0.42) | 187.3 (2.45) | 0.78 (0.37) | 0.05 (0.02) | 0.39 (0.25) |
| Control | + | 1937.8 (9.49) | 2233.8 (5.96) | 8.02 (0.01) | 28.53 (0.49) | 34.74 (0.13) | 422 (15.07) | 1710.4 (14.13) | 10.9 (0.43) | 192.3 (2.02) | 0.67 (0.32) | 0.04 (0.02) | 1.98 (0.34) |
| Intermediate | − | 2045.8 (12.22) | 2238.8 (5.25) | 7.83 (0.04) | 28.63 (0.76) | 34.74 (0.13) | 731 (78.43) | 1875.5(21.95) | 19.0 (2.09) | 129.4 (13.06) | 0.55 (0.18) | 0.04 (0.02) | 0.24 (0.13) |
| Intermediate | + | 2047.4 (12.88) | 2238.3 (4.76) | 7.82 (0.05) | 28.80 (0.72) | 34.74 (0.13) | 738 (88.59) | 1877.4 (24.40) | 19.1 (2.33) | 131.0 (12.94) | 0.60 (0.29) | 0.04 (0.02) | 1.80 (0.23) |
| High | − | 2135.0 (18.95) | 2240.4 (4.89) | 7.63 (0.04) | 28.70 (0.61) | 34.74 (0.13) | 1235 (129.49) | 2001.1(22.17) | 32.0 (3.15) | 92.9 (5.91) | 0.76 (0.55) | 0.05 (0.02) | 0.29 (0.16) |
| High | + | 2130.6 (14.89) | 2239.9 (5.20) | 7.64 (0.04) | 28.73 (0.58) | 34.74 (0.13) | 1190 (110.60) | 1994.7 (18.18) | 30.8 (2.67) | 87.8 (4.85) | 0.54 (0.18) | 0.04 (0.02) | 1.71 (0.68) |
Values are given as mean ± S.D. Carbonate system parameters were calculated using measured values of total alkalinity (AT), total dissolved inorganic carbon (DIC), temperature and salinity on CO2calc software52.