Description of sounds recorded from Longman's beaked whale, Indopacetus pacificus

Sounds from Longman's beaked whale, Indopacetus pacificus , were recorded during shipboard surveys of cetaceans surrounding the Hawaiian Islands archipelago; this represents the first known recording of this species. Sounds included echolocation clicks and burst pulses. Echolocation clicks were...

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Bibliographic Details
Published in:The Journal of the Acoustical Society of America 2011-11, Vol.130 (5), p.EL339-EL344
Main Authors: Rankin, Shannon, Baumann-Pickering, Simone, Yack, Tina, Barlow, Jay
Format: Article
Language:English
Subjects:
Acoustics
Acoustics - instrumentation
Animals
Cetacea
Exact sciences and technology
Fundamental areas of phenomenology (including applications)
Indopacetus pacificus
Marine
Physics
Signal Processing, Computer-Assisted
Sound Spectrography
Time Factors
Transduction
acoustical devices for the generation and reproduction of sound
Underwater sound
Vocalization, Animal - classification
Whales - physiology
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Description
Summary:Sounds from Longman's beaked whale, Indopacetus pacificus , were recorded during shipboard surveys of cetaceans surrounding the Hawaiian Islands archipelago; this represents the first known recording of this species. Sounds included echolocation clicks and burst pulses. Echolocation clicks were grouped into three categories, a 15 kHz click ( n =106), a 25 kHz click ( n =136), and a 25 kHz pulse with a frequency-modulated upsweep ( n =70). The 15 and 25 kHz clicks were relatively short (181 and 144 ms, respectively); the longer 25 kHz upswept pulse was 288 ms. Burst pulses were long (0.5 s) click trains with approximately 240 clicks/s.
ISSN:0001-4966
1520-8524
DOI:10.1121/1.3646026