Body size and weight (average ±1SE) of individuals and empty shells of C. concholepas reared under different pCO2 treatments.

Live individuals were exposed for 83 days and fed ad libitum with mussels. Differences among levels of pCO2 treatments were not significant for any measurement.The individuals were obtained in the field and then exposed for 83 (live individuals) and 30 (empty shells) days under the experimental levels of pCO2. Initial and final sizes, wet, dry and buoyant weight and the corresponding growth, deposition and dissolution rates were compared by one-way ANOVAs and similar superscripts indicate lack of significant differences between treatments (P>0.05). See text for details.