Click production during breathing in a sperm whale (Physeter macrocephalus).

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.

[1]  K. S. Norris,et al.  a Theory for the Function of the Spermaceti Organ of the Sperm Whale (physeter Catodon L) , 1972 .

[2]  A. Gannier,et al.  Current knowledge of the cetacean fauna of the Greek Seas , 2023, J. Cetacean Res. Manage..

[3]  P. Madsen,et al.  Male sperm whale (Physeter macrocephalus) acoustics in a high-latitude habitat: implications for echolocation and communication , 2002, Behavioral Ecology and Sociobiology.

[4]  Jonathan Gordon,et al.  Evaluation of a method for determining the length of sperm whales (Physeter catodon) from their vocalizations , 1991 .

[5]  P. E. Nachtigall,et al.  Sound production in neonate sperm whales (L) , 2003 .

[6]  Walter M. X. Zimmer,et al.  Combining data from a multisensor tag and passive sonar to determine the diving behavior of a sperm whale (Physeter macrocephalus) , 2003 .

[7]  E. J. Schenkkan,et al.  The comparative anatomy of the nasal tract and the function of the spermaceti organ in the Physeteridae (Mammalia, Odontoceti) , 1973 .

[8]  William A. Watkins,et al.  Spatial distribution of Physeter catodon (sperm whales) underwater , 1977 .

[9]  H. Whitehead,et al.  Coda communication by sperm whales (Physeter macrocephalus) off the Galápagos Islands , 1993 .

[10]  A. Thode,et al.  Depth-dependent acoustic features of diving sperm whales (Physeter macrocephalus) in the Gulf of Mexico. , 2002, The Journal of the Acoustical Society of America.

[11]  P. Madsen,et al.  The monopulsed nature of sperm whale clicks. , 2003, The Journal of the Acoustical Society of America.

[12]  Ted W. Cranford,et al.  THE SPERM WHALE'S NOSE: SEXUAL SELECTION ON A GRAND SCALE?1 , 1999 .

[13]  M. Wahlberg,et al.  Modeling of the dolphin’s clicking sound source: The influence of the critical parameters , 2004 .

[14]  John Goold,et al.  Behavioural and acoustic observations of sperm whales in Scapa Flow, Orkney Islands , 1999, Journal of the Marine Biological Association of the United Kingdom.

[15]  W. K. Gregory,et al.  The spermaceti organ and nasal passages of the sperm whale (Physeter catodon) and other odontocetes. American Museum novitates ; no. 677 , 1933 .

[16]  Mark P. Johnson,et al.  Sperm whale behaviour indicates the use of echolocation click buzzes ‘creaks’ in prey capture , 2004, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[17]  rdens Djurpark,et al.  BONY NARES AIR PRESSURE AND NASAL PLUG MUSCLE ACTIVITY DURING CLICK PRODUCTION IN THE HARBOUR PORPOISE , PHOCOENA PHOCOENA , AND THE BOTTLENOSED DOLPHIN , TURSIOPS TRUNCATUS , 2005 .

[18]  Kenneth S. Norris,et al.  Can Odontocetes Debilitate Prey with Sound? , 1983, The American Naturalist.

[19]  Bertel Møhl,et al.  Sound transmission in the nose of the sperm whale Physeter catodon. A post mortem study , 2001, Journal of Comparative Physiology A.

[20]  T. Cranford,et al.  Functional morphology and homology in the odontocete nasal complex: Implications for sound generation , 1996, Journal of morphology.

[21]  A. Gaunt,et al.  Electromyographic and Pressure Events in the Nasolaryngeal System of Dolphins during Sound Production , 1980 .

[22]  Peter L Tyack,et al.  Three-dimensional beam pattern of regular sperm whale clicks confirms bent-horn hypothesis. , 2005, The Journal of the Acoustical Society of America.

[23]  Magnus Wahlberg,et al.  The acoustic behaviour of diving sperm whales observed with a hydrophone array , 2002 .

[24]  Kenneth J. Dormer,et al.  Mechanism of sound production and air recycling in delphinids: Cineradiographic evidence , 1979 .

[25]  M. Clarke,et al.  Structure and Proportions of the Spermaceti Organ in the Sperm Whale , 1978, Journal of the Marine Biological Association of the United Kingdom.

[26]  R Payne,et al.  Sperm whale sound production studied with ultrasound time/depth-recording tags. , 2002, The Journal of experimental biology.