Complete Carbonate Chemistry.

<p>Experimental salinity and temperature were 31 and 18^°C, respectively. Primary treatment levels for saturation state and P_CO2 are noted in the left two columns. Total alkalinity (Talk), Dissolved inorganic carbon (DIC), Bicarbonate ion (HCO₃), Carbonate ion (CO₃) are all reported in μmol kg^-1. P_CO2 is in μatm. Treatment (trt) combinations in bold indicate those used for the respiration rate measurements. Asterisk denotes a preservation problem with this sample, and therefore P_CO2 was greatly elevated relative to the initial treatment. The control was freshly seawater bubbled with CO₂-reduced air for 24 hours.</p><p>Carbonate chemistry of experimental treatments and control.