Translations:Beluga whale/31/en
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One foundational study recorded belugas summering in Cunningham Inlet, Canada, from 1981 to 1983. Researchers sorted 807 tonal calls and whistles into 16 contour types and classified 436 pulsed sounds as click series, pulsed tones, or noisy vocalizations. The measured whistles had mean frequencies from 2.0 to 5.9 kHz and durations from 0.25 to 1.95 seconds; pulsed tones had mean pulse-repetition rates from about 204 to 1,289 pulses per second.[1] These are measurements from a particular place, season, recording system, and classification method—not fixed limits for the species.
- ↑ Sjare, B. L., and Smith, T. G. (1986). The vocal repertoire of white whales, Delphinapterus leucas, summering in Cunningham Inlet, Northwest Territories. Canadian Journal of Zoology 64(2): 407–415.