Carbonate chemistry.

Average (± 1 SD) carbonate chemistry parameters in incubation bottles after a 24-hour acclimation period (T0) and after an additional 24-hour incubation (Tf) in control (no krill added) and treatment (+Krill) bottles bubbled with ambient (Amb) and high concentrations of CO2. DIC, dissolved inorganic carbon; AT, total alkalinity; ΩAr, aragonite saturation state. Note two of ten samples (n = 8) were lost for the Tf High+krill treatment.