(Downloading may take up to 30 seconds.
If the slide opens in your browser, select File -> Save As to save it.)
Click on image to view larger version.

Fig. 9. Modeled changes in mechanical work stroke1 against drag,
buoyancy, inertia (surge acceleration) and all three combined during ascent
and horizontal swimming at the bottom (109 m), based on dive parameters for a
Brünnich's guillemot (BRGU 13; Figs
3,
6 and
7;
Table 1) and drag of a frozen
Brünnich's guillemot (Fig.
1A). The depth of neutral buoyancy was estimated as 71 m
(Fig. 3A). Values at the bottom
were based on an estimated mean speed of 1.76 m s1.