Fig. 3. Shell CO2 mobilization (mmol) as a function of whole-body
lactate (mmol) for hatchling Chelydra serpentina, Chrysemys picta and
Graptemys geographica, and adult Chrysemys picta submerged
in anoxic water at 3°C. Values are means ± S.E.M.;
sample sizes are listed above the bars. Data for adult Chrysemys
picta are from Warburton and Jackson
(1995).