TABLE 1.

Carbonate system parameters of control and experimental tanks. The pH was measured daily for each of the four control and four experimental tanks, (n = 29 per tank), Alkalinity and salinity were measured weekly including day one and the last day of the experiments (n = 6 per tank). Means are presented with ± as standard error.

Treatment	pCO2 (µatm)	pH	Alkalinity (µmol kg−1)	Salinity (PSU)
Control	1,083 ± 48	7.621 ± 0.019	2068 ± 7	30 ± 0.4
Elevated CO2	1767 ± 94	7.422 ± 0.022	2066 ± 4	30.1 ± 0.4