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Sounds of Indo-Pacific humpback dolphins (Sousa chinensis) in West Hong Kong: A preliminary description

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Abstract
  • Vocalizations of Indo-Pacific humpback dolphins (Sousa chinensis) in west Hong Kong waters were described from 12 recordings in 2010. A broadband hydrophone system recorded sounds. Vocalizations were characterized as broadband click trains, burst pulses, and narrowband frequency modulated sounds, including whistles generally similar to those of some other delphinid cetaceans. A comparison of results to previous humpback dolphin sound descriptions for Moreton Bay, Australia found broad similarities except for the apparent absence of “quacks” and “grunts” in the present study, which are of low frequency and thus were possibly masked by anthropogenic and other low frequency noise in the Hong Kong habitat.
  • This is the publisher’s final pdf. The published article is copyrighted by Acoustical Society of America and can be found at: http://asadl.org/jasa/resource/1/jasman.
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  • Sims, P. Q., Vaughn, R., Hung, S. K., & Würsig, B. (2012, January). Sounds of Indo-Pacific humpback dolphins (Sousa chinensis) in West Hong Kong: A preliminary description. Journal of the Acoustical Society of America, 131(1), EL48-EL53. doi:10.1121/1.3663281
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  • 131
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  • 1
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Déclaration de droits
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  • The Agriculture, Fisheries, and Conservation Department of the Hong Kong SAR Government gave funding support and data collection assistance. P.Q.S. thanks the National Science Foundation for helping fund this project as part of a Research Experience for Undergraduates program (REU) at Texas A&M University at Galveston.
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