The relationship between the behavioral activity and the underwater vocalization of the beluga whale (Delphinapterus leucas)
- 25 February 2012
- journal article
- Published by Pleiades Publishing Ltd in Oceanology
- Vol. 52 (1), 79-87
- https://doi.org/10.1134/s000143701201016x
Abstract
The underwater vocalizations of the beluga whale summering in Onega Bay (64°24′N, 35°49′E) were recorded in June–July of 2008. The vocalizations were classified into five major whistle types, four types of pulsed tones, click series, and noise vocalizations. To determine the relationship between the behavioral activity and the underwater vocalizations, a total of fifty-one 2 minute-long samples of the audio records were analyzed in the next six behavioral contexts: directional movements, quiet swimming, resting, social interactions, individual hunting behavior, and the exploration of hydrophones by beluga whales. The overall vocalization rate and the percentage of the main types of signals depend on the behavior of the belugas. We suggest that one of the whistle types (the “stereotype whistle”) is used by belugas for long-distance communications, while other whistle types (with the exception of “squeaks”) and three types of pulsed tones (with the exception of “vowels”) are used for short distance communication. The percentage of “squeaks” and “vowels” was equally high in all the behavioral situations. Thus, we assume that “squeaks” are contact signals. “Vowels” have a specific physical structure and probably play a role in identification signals. A high rate of the click series was observed in the process of social interactions.Keywords
This publication has 12 references indexed in Scilit:
- High-pitched tonal signals of beluga whales (Delphinapterus leucas) in a summer assemblage off Solovetskii Island in the White SeaAcoustical Physics, 2006
- Specific features of vowel-like signals of white whalesAcoustical Physics, 2004
- Summer vocalisations of adult male white whales (Delphinapterus leucas) in Svalbard, NorwayPolar Biology, 2002
- Mixed-directionality of killer whale stereotyped calls: a direction of movement cue?Behavioral Ecology and Sociobiology, 2002
- Source levels and the estimated active space of bottlenose dolphin (Tursiops truncatus) whistles in the Moray Firth, ScotlandJournal of Comparative Physiology A, 2000
- The Belukha whale : natural behavior and bioacousticsPublished by MBLWHOI Library ,1993
- Acoustic behaviour of resident killer whales (Orcinus orca) off Vancouver Island, British ColumbiaCanadian Journal of Zoology, 1989
- Low-frequency underwater hearing sensitivity in belugas, D e l p h i n a p t e r u s l e u c a sThe Journal of the Acoustical Society of America, 1988
- The relationship between behavioral activity and underwater vocalizations of the white whale, Delphinapterus leucasCanadian Journal of Zoology, 1986
- The vocal repertoire of white whales, Delphinapterus leucas, summering in Cunningham Inlet, Northwest TerritoriesCanadian Journal of Zoology, 1986