Table 1. Summary of average calculated and measured parameters for the experimental treatments.

CALCULATED PARAMETERS
pCO2 (gas-e)	(ppm-v)	424	426	940	888
	SE	10	11	10	14
	Range	349–537	334–522	824–1059	730–1018
	n	24	22	27	26
pHC		8.09	8.10	7.80	7.77
	SE	0.01	0.01	0.01	0.01
	Range	7.93–8.16	7.96–8.19	7.76–7.85	7.69–7.85
	n	24	22	27	26
[CO32−]	(μM)	413	363	233	170
	SE	13	12	4	5
	Range	249–470	239–435	204–268	130–218
	n	24	22	27	26
[HCO3−]	(μM)	2069	2104	2338	2090
	SE	24	28	19	27
	Range	1797–2232	1873–2317	2240–2542	1857–2329
	n	24	22	27	26
[CO2] (SW)	(μM)	10.2	11.2	22.6	23.4
	SE	0.2	0.3	0.2	0.4
	Range	8.4–12.7	8.8–13.6	19.9–25.4	19.1–27.0
	n	24	22	27	26
ΩA		6.8	5.8	3.8	2.7
	SE	0.2	0.2	0.1	0.1
	Range	4.1–7.7	3.8–7.0	3.4–4.4	2.1–3.5
	n	24	22	27	26
MEASURED PARAMETERS
Sal		35.15	35.30	34.88	35.04
	SE	0.05	0.05	0.04	0.04
	Range	34.50–36.50	34.60–36.70	34.00–35.50	34.30–35.80
	n	81	81	78	78
T	(°C)	31.9	28.1	31.8	28.0
	SE	0.1	0.1	0.1	0.1
	Range	31.0–32.7	27.5–29.1	31.1–32.1	27.7–28.3
	n	81	81	78	78
pHM		8.14	8.08	7.89	7.82
	SE	0.01	0.01	0.01	0.01
	Range	8.00–8.28	8.01–8.18	7.75–8.21	7.62–8.18
	n	81	81	78	78
TA	(μM)	3024	2948	2878	2493
	SE	51	50	26	36
	Range	2404–3217	2459–3239	2723–3118	2190–2821
	n	24	22	27	26
DIC	(μM)	2492	2478	2593	2283
	SE	36	37	22	31
	Range	2065–2672	2133–2723	2470–2814	2017–2563
	n	24	22	27	26

Abbreviations: ‘pCO_{2 (gas-e)}’ = pCO₂ of the mixed gas in equilibrium with the experimental seawaters; ‘pH_C’ = calculated pH; ‘[CO₃²⁻]’ = carbonate ion concentration; ‘[HCO₃⁻]’ = bicarbonate ion concentration; [CO₂] _(SW); ‘Ω_A’ = aragonite saturation state; ‘Sal’ = salinity; ‘T’ = temperature, ‘pH_M’ = measured pH; ‘TA’ = total alkalinity, ‘DIC’ = dissolved inorganic carbon; ‘SE’ = standard error of the mean; ‘n’ = number of observations.