Sounds produced by Australian Irrawaddy dolphins

van Parijs, S., Parra Vergara, G.J., and Corkeron, P.J. (2000) Sounds produced by Australian Irrawaddy dolphins. Journal of the Acoustical Society of America, 108 (4). pp. 1938-1940.

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Abstract

Sounds produced by Irrawaddy dolphins, Orcaella brevirostris, were recorded in coastal waters off northern Australia. They exhibit a varied repertoire, consisting of broadband clicks, pulsed sounds and whistles. Broad-band clicks, "creaks" and "buzz" sounds were recorded during foraging, while "squeaks" were recorded only during socializing. Both whistle types were recorded during foraging and socializing. The sounds produced by Irrawaddy dolphins do not resemble those of their nearest taxonomic relative, the killer whale, Orcinus orca. Pulsed sounds appear to resemble those produced by Sotalia and nonwhistling delphinids (e.g., Cephalorhynchus spp.). Irrawaddy dolphins exhibit a vocal repertoire that could reflect the acoustic specialization of this species to its environment. ©2000 Acoustical Society of America.

Item ID: 12070
Item Type: Article (Research - C1)
ISSN: 1520-8524
Keywords: animal acoustics; animal behavior; Irrawaddy dolphin
Date Deposited: 09 Jul 2012 01:58
FoR Codes: 06 BIOLOGICAL SCIENCES > 0699 Other Biological Sciences > 069999 Biological Sciences not elsewhere classified @ 100%
SEO Codes: 96 ENVIRONMENT > 9605 Ecosystem Assessment and Management > 960508 Ecosystem Assessment and Management of Mining Environments @ 100%
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