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Fig. 6. (A) Depicts the distribution of echoes and buzzes per minute as a function
of depth (bin width of 25 m) during two dives of the favorably tagged whale.
Note that the occurrence of buzzes (red bars) does not overlap with the depths
at which the highest numbers of echoes are encountered. (B) Time distribution
as function of depth (bin width of 25 m) during foraging dives. Note that the
whale spends the most time between 675 and 725 m, where the main part of the
buzzes are produced as shown in A.