Table 1.

Water parameters over course of experiment. (Values shown are mean ± 95% CIs. Temperature, salinity, pH (NBS scale), and CO₂ and were measured and the remaining parameters (total alkalinity (TA), CO₂ (CO₂), bicarbonate (HCO₃) and carbonate (CO₃)) calculated using CO₂sys [26] using constants from Mehrbach et al. [27] refitted by Dickson & Millero [28] and KHSO4 values from Dickson [29].)

treatment S and CO2		T (°C)	salinity	pH	CO2 (ppm)	TA (μmol per kgSW)	tCO2 (μmol per kgSW)	HCO3 (μmol per kgS W)	CO3 (μmol per kgSW)
32	present	13.0 ± 0.2	32.7 ± 0.2	8.13 ± 0.01	390 ± 0	2036 ± 44	1870 ± 38	1737 ± 34	117 ± 5
5	present	12.8 ± 0.1	5.3 ± 0.1	8.01 ± 0.01	390 ± 0	955 ± 7	950 ± 7	913 ± 6	18 ± 0.4
32	future	12.9 ± 0.1	32.7 ± 0.2	7.78 ± 0.01	1034 ± 24	2233 ± 27	2180 ± 27	2076 ± 25	63 ± 2
5	future	12.7 ± 0.1	5.1 ± 0.1	7.68 ± 0.02	1034 ± 24	1246 ± 23	1246 ± 23	1186 ± 23	11 ± 1