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    Huggenberger, Stefan André, Michel and Oelschläger, Helmut H. A. 2016. The nose of the sperm whale: overviews of functional design, structural homologies and evolution. Journal of the Marine Biological Association of the United Kingdom, Vol. 96, Issue. 04, p. 783.


    Song, Zhongchang Xu, Xiao Dong, Jianchen Xing, Luru Zhang, Meng Liu, Xuecheng Zhang, Yu Li, Songhai and Berggren, Per 2015. Acoustic property reconstruction of a pygmy sperm whale (Kogia breviceps) forehead based on computed tomography imaging. The Journal of the Acoustical Society of America, Vol. 138, Issue. 5, p. 3129.


    Thornton, Steven W. Mclellan, William A. Rommel, Sentiel A. Dillaman, Richard M. Nowacek, Douglas P. Koopman, Heather N. and Ann Pabst, D. 2015. Morphology of the Nasal Apparatus in Pygmy (Kogia Breviceps) and Dwarf (K. Sima) Sperm Whales. The Anatomical Record, Vol. 298, Issue. 7, p. 1301.


    Kielhorn, Caitlin E. Dillaman, Richard M. Kinsey, Stephen T. McLellan, William A. Mark Gay, D. Dearolf, Jennifer L. and Ann Pabst, D. 2013. Locomotor muscle profile of a deep (Kogia breviceps) versus shallow (Tursiops truncatus) diving cetacean. Journal of Morphology, Vol. 274, Issue. 6, p. 663.


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    Wahlberg, Magnus Beedholm, Kristian Heerfordt, Anders and Mo̸hl, Bertel 2011. Characteristics of biosonar signals from the northern bottlenose whale, Hyperoodon ampullatus. The Journal of the Acoustical Society of America, Vol. 130, Issue. 5, p. 3077.


    Zenteno-Savín, Tania Vázquez-medina, José Pablo Cantú-Medellín, Nadiezhda Ponganis, Paul J. and Elsner, Robert 2011. Oxidative Stress in Aquatic Ecosystems.


    Mcalpine, Donald F. 2009. Encyclopedia of Marine Mammals.


    Bloodworth, Brian E. and Odell, Daniel K. 2008. Kogia Breviceps (Cetacea: Kogiidae). Mammalian Species, Vol. 819, p. 1.


    MORISAKA, T. and CONNOR, R. C. 2007. Predation by killer whales (Orcinus orca) and the evolution of whistle loss and narrow-band high frequency clicks in odontocetes. Journal of Evolutionary Biology, Vol. 20, Issue. 4, p. 1439.


    Santos, M. B. Pierce, G. J. Lopez, A. Reid, R. J. Ridoux, V. and Mente, E. 2006. PYGMY SPERM WHALES KOGIA BREVICEPS IN THE NORTHEAST ATLANTIC: NEW INFORMATION ON STOMACH CONTENTS AND STRANDINGS. Marine Mammal Science, Vol. 22, Issue. 3, p. 600.


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  • Journal of the Marine Biological Association of the United Kingdom, Volume 83, Issue 2
  • April 2003, pp. 241-263

Production and control of sound by the small sperm whales, Kogia breviceps and K. sima and their implications for other Cetacea

  • M.R. Clarke (a1)
  • DOI: http://dx.doi.org/10.1017/S0025315403007045h
  • Published online: 01 March 2003
Abstract

The detailed anatomy of the noses of Kogia breviceps and K. sima (Kogiidae: Cetacea) is described in greater detail than previously. Probable functions of component parts of the nose are deduced from their geometry and physical properties of the tissues. It is concluded that control of the air making the sound is similar to that found in scottish bagpipes with a single reed, that sounds are produced by air being forced from the vocal valve and is resonated in an unusual chamber having cords and membranes, similar to human vocal cords. It is then reflected by air filled ‘mirrors’ and conducted and intensified through a megaphone-like ‘horn’ which is surrounded by air and contains tissues rich in spermaceti oil. Sound then passes through the melon where, by changes in temperature of the spermaceti oil, it is actively focused and possibly scanned. Thermal properties of Kogia spermaceti oil are described and related to previously made sound velocity and density measurements. The way sound production and reflection can continue while large variations of pressure are experienced during deep dives, is suggested. A structure for controlling the temperature of the melon is described. It is considered unlikely that the spermaceti oil is used for buoyancy control in Kogia. Some comparisons are drawn with Physeter catodon, Xiphius and Tursiops and some implications for research on other cetaceans are outlined.

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Journal of the Marine Biological Association of the United Kingdom
  • ISSN: 0025-3154
  • EISSN: 1469-7769
  • URL: /core/journals/journal-of-the-marine-biological-association-of-the-united-kingdom
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