Figure 2
From: Fin whale (Balaenoptera physalus) migration in Australian waters using passive acoustic monitoring
Spectrograms of an example of the three different pulse displays recorded by IMOS or Curtin USR’s: (a) the repeated pattern 20 Hz classic pulses (pygmy blue whale signals in the background), (b) the doublet train pulse display, and (c) the back-beat pulse display.
