Fig 1.
The “Laguna dei delfini” pool at the Oltremare park in Riccione (Italy).
Table 1.
Dolphins’ activities throughout the recording phase: Ordinary activity (ORD); Play activity (PLAY); Fish from the roof (FFR).
Fig 2.
Positioning of the recording device (red circle) in the “Laguna dei delfini” pool.
Fig 3.
Example of a spectrogram including multiple whistles and pulsed vocalizations.
Table 2.
SNR values.
Fig 4.
Whistle occurrences over time.
Fig 5.
Occurrences of pulsed vocalization over time.
Fig 6.
Kernel density estimation for whistles (panel A) and pulsed vocalization (panel B) distributions.
Fig 7.
Whisker plots highlighting the distributions and outliers for each class of whistles in function of the different dolphin activities.
Distribution of total whistles is reported in panel A, class 1 in panel B, class 2 in panel C, class 3 in panel D, and class 4 in panel E.
Fig 8.
Whisker plots highlighting the distributions and outliers for each class of pulsed vocalizations in function of the different dolphin activities.
Distribution of total pulsed vocalizations is reported in panel A, BPSs in panel B, ECTs in panel C, and FBS in panel D.