Fig. 8. Body acceleration (grey dots) and pitch (red dots) as a function of depth. Values are shown in the first 200 m of the water column and thus only show data for descent (A) and ascent (B). Positive acceleration is always in the direction of forward motion of the body. Thick lines represent the mean of each respective parameter at a particular depth. The orange vertical line denotes the mean depth where gait transition from fluking to gliding occurs during descent (21±7 m, N=28) and during ascent (30±5 m, N=28).