Document Detail

Click production during breathing in a sperm whale (Physeter macrocephalus).
MedLine Citation:
PMID:  16419786     Owner:  NLM     Status:  MEDLINE    
A sperm whale (Physeter macrocephalus) was observed at the surface with above- and underwater video and synchronized underwater sound recordings. During seven instances the whale ventilated its lungs while clicking. From this observation it is inferred that click production is achieved by pressurizing air in the right nasal passage, pneumatically disconnected from the lungs and the left nasal passage, and that air flows anterior through the phonic lips into the distal air sac. The capability of breathing and clicking at the same time is unique among studied odontocetes and relates to the extreme asymmetry of the sperm whale sound-producing forehead.
Magnus Wahlberg; Alexandros Frantzis; Paraskevi Alexiadou; Peter T Madsen; Bertel Møhl
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  118     ISSN:  0001-4966     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2006-01-19     Completed Date:  2006-02-27     Revised Date:  2006-12-27    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3404-7     Citation Subset:  IM    
Department of Zoophysiology, Aarhus University, C. F. Møllers Alle Building 131, DK-8000 Aarhus C, Denmark.
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MeSH Terms
Lung / physiology
Nasal Cavity / physiology
Respiratory Mechanics / physiology*
Sperm Whale / physiology*
Video Recording
Vocalization, Animal / physiology*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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