Differences in additional physiological parameters determined by circular vs. elliptical truncated cones.

Mean ± SE total body volume, surface area, surface area-to-volume ratios, buoyant force, and calculated density in Weddell seals (N = 11). Surface area remains the same between circular and elliptical cones. Buoyancy was calculated following Webb et al. [9], and density was calculated using measured MT. Asterisk indicates a significant difference in estimated parameter using circular versus elliptical models (paired t-tests; all P