Fig. 8.

Mean net Ca²⁺ (a) and titratable alkalinity (b) fluxes (μmol g⁻¹ h⁻¹ ± SEM) as a function of ambient [HCO₃ ⁻] for egg masses of the pond snail L. stagnalis. Values are for day 7 egg masses that were fluxed for 24 h. There was no apparent relationship between Ca²⁺ or TA net flux and [HCO₃ ⁻]. Sample size is indicated for respective [HCO₃ ⁻] above each data point