Fig 3. Estimated body density for adult, female Weddell seals calculated from actual body mass and estimated volume.

The elliptical “cones” method estimated a higher density than both “correction equation” and “silhouette slice” methods. For reference, vertical lines show the density of seawater (black dotted line, 1.027 g cm^-3 [36]), blubber (black dashed line, 0.920 g cm^-3, this paper), and lean tissue (black dashed-dotted line, 1.1 g cm^-3 [35]).