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Shifts in frequency-modulated pulses recorded during an encounter with Blainville's beaked whales (Mesoplodon densirostris)
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2016
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Source: The Journal of the Acoustical Society of America, 140(2), EL166-EL171
[PDF-1.40 MB]
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Journal Title:The Journal of the Acoustical Society of America
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Description:Echolocation signals produced by beaked whales (family: Ziphiidae) include frequency-modulated (FM) pulses that appear to have species-specific characteristics. To date there has been no established evidence that a single species of beaked whale might produce more than one type of FM pulse. In 2014 a group of Blainville's beaked whales (Mesoplodon densirostris) were sighted off of Southern California; recordings included FM pulses with significant increases in peak frequency, center frequency, and −10 dB bandwidth relative to FM pulses previously attributed to this species. This research suggests there may be greater variation in received beaked whale FM pulses than previously understood.
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Source:The Journal of the Acoustical Society of America, 140(2), EL166-EL171
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ISSN:0001-4966;1520-8524;
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Rights Information:Other
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