130
The common dolphin whistles are emitted usually between 3 and 23.51 kHz and
duration between 0.01 and 2.1 s (Ansmann et al. 2007; Petrella et al. 2012). Whistles
recorded in the western South Atlantic presented frequency range between 4.07 and
31.46 kHz and duration between 0.11 and 1.73 s (Fig. 5.18).
Acoustic studies with common dolphin whistles parameters are still rare and
punctual. In Brazilian waters, this was the first effort to investigate common dolphin
whistles repertoire. Moreover, in the current scenario of the taxonomic genus, the
bioacoustics is a tool to help the classification of these dolphins and their phylogenetic relationships.
Fig. 5.17 Delphinus delphis photographed off the Brazilian coast (Reproduced with permission of
Pedro Fruet)
Fig. 5.16 Examples of spectrograms of (a) whistle, (b) clicks and (c) burst sound of bottlenose
dolphin
A. Andriolo et al.
The common dolphin whistles are emitted usually between 3 and 23.51 kHz and
duration between 0.01 and 2.1 s (Ansmann et al. 2007; Petrella et al. 2012). Whistles
recorded in the western South Atlantic presented frequency range between 4.07 and
31.46 kHz and duration between 0.11 and 1.73 s (Fig. 5.18).
Acoustic studies with common dolphin whistles parameters are still rare and
punctual. In Brazilian waters, this was the first effort to investigate common dolphin
whistles repertoire. Moreover, in the current scenario of the taxonomic genus, the
bioacoustics is a tool to help the classification of these dolphins and their phylogenetic relationships.
Fig. 5.17 Delphinus delphis photographed off the Brazilian coast (Reproduced with permission of
Pedro Fruet)
Fig. 5.16 Examples of spectrograms of (a) whistle, (b) clicks and (c) burst sound of bottlenose
dolphin
A. Andriolo et al.