Table 2.

Calcification data from Comeau et al. [1] and calculated values for the [DIC] : [H⁺] ratio.

conditions	[DIC]	[H+]	[DIC] : [H+] ratio	mean coral G	mean CCA G	coral G (light)	coral G (dark)	CCA G (light)	CCA G (dark)
	(μmol kg−1)	(nmol kg−1)	([DIC] × [H+]−1) × 103	(mg CaCO3 d−1 cm−2)	(mg CaCO3 d−1 cm−2)	(μg CaCO3 h−1 cm−2)	(μg CaCO3 h−1 cm−2)	(μg CaCO3 h−1 cm−2)	(μg CaCO3 h−1 cm−2)
low CO32−	2374	36.31	65	0.8	0.1	33	12	−9	−70
	1807	23.99	75	1.1	0.4	35	0	−65	−30
	1120	15.85	71	0.68	−0.2	−2	−4	−48	−143
medium CO32−	2529	12.30	206	1.5	0.8	65	36	70	43
	1969	9.12	216	1.9	1.7	48	12	8	−30
	1277	6.46	198	1.4	0.2	18	13	−25	−83
high CO32−	2729	7.41	368	2.1	2.1	112	50	118	115
	2190	5.62	389	1	0.9	70	47	60	58
	1563	3.89	402	1.5	2.1	43	48	26	11