Fig. 7. Respiratory and kinematic parameters associated with lunge frequency. (A)
Foraging dives that involved more lunges required longer dive durations (MnA,
r2=0.77, P<0.001; MnB,
r2=0.65, P<0.001) and (B) more bottom time
(MnA, r2=0.83, P<0.001; MnB,
r2=0.77, P<0.001). (C) A significant
correlation was found between the number of lunges executed per dive and the
number of post-dive recovery breaths (MnA, r2=0.83,
P<0.001; MnB, r2=0.63, P<0.001).
(D) Post-dive surface time increased with lunge frequency (MnA,
r2=0.52, P<0.001; MnB,
r2=0.43, P<0.001). (E) Lunge frequency was
associated with a steeper ascent following the lunge bout (D; MnA,
r2=0.73, P<0.001; MnB,
r2=0.72, P<0.001) and a steeper descent during
the subsequent dive (D; MnA, r2=0.42, P<0.001;
MnB, r2=0.66, P<0.001). Black lines, MnB; gray
lines, MnA.