European Research on Cetaceans (1988)
(...) The free-swinging bullae of odontocetes are very massive, their specific weight being twice that of the other skull bones. This feature led Yamada (1953) to his theory that the…
Functional morphology of the nasal complex in the harbor porpoise (Phocoena phocoena L.)
Huggenberger, Stefan; Rauschmann, Michael A.; Vogl, Thomas J.; Oelschläger, Helmut H. A.
Anatomical Record (2009)
Toothed whales (Odontoceti, Cetacea) are the only aquatic mammals known to echolocate, and probably all of them are able to produce click sounds and to synthesize their echoes into a…
Functional morphology and homology in the odontocete nasal complex: Implications for sound generation
Cranford, T. W.; Amundin, M.; Norris, K. S.
Journal of Morphology (1996)
The site and physiologic mechanism(s) responsible for the generation of odontocete biosonar signals have eluded investigators for decades. To address these issues we subjected postmortem toothed whale heads to interrogation…
Facial anatomy and potential function of facial structures for sound production in the harbor porpoise (Phocoena phocoena) and Dall’s porpoise (Phocoenoides dalli)
Curry, Barbara E.
Can. J. Zool. (1992)
Structural modifications of the odontocete skull and nasal passages have shifted the position of the facial bones and associated soft anatomy to the dorsal aspect of the head. The facial…
The acoustic world of harbor porpoises
Wahlberg, Magnus; Linnenschmidt, Meike; Madsen, Peter; Wisniewska, Danuta; Miller, Lee
Amer. Scientist (2015)
Abstract currently unavailable
Assessment of the effect of natural and anthropogenic aquatic noise on vaquita (Phocoena sinus) through a numerical simulation
Castellazzi, Giovanni; Krysl, Petr; Rojas, Lorenzo; Cranford, Ted W.
Advances in Experimental Medicine and Biology (2012)
Phocoena sinus (vaquita) is a small marine harbor porpoise endemic to the Gulf of California that is believed to be the most endangered cetacean in the world as reported by…
Morphology of the odontocete melon and its implications for acoustic function
McKenna, Megan F.; Cranford, Ted W.; Berta, Annalisa; Pyenson, Nicholas D.
Marine Mammal Science (2011)
Toothed whales (crown Odontoceti) are unique among mammals in their ability to echolocate underwater, using specialized tissue structures. The melon, a structure composed of fat and connective tissue, is an…
Investigations on cetacean sonar VII: Underwater sounds of Neophocaena phocaenoides of the Japanese coastal population
Kamminga, C.; Kataoka, T.; Engelsma, F. J.
Aquatic Mammals (1986)
This paper describes the sonar sounds from four captive Neophocaena, two males and two females, which were tape recorded and processed with regard to their behaviour in the time and…
Characteristics of echolocation signals used by a harbour porpoise (Phocoena phocoena) in a target detection experiment
Teilmann, Jonas; Miller, Lee A.; Kirketerp, Tim; Kastelein, Ronald A.; Madsen, Peter T.; Nielsen, Bjarke K.; Au, Whitlow W. L.
Aquatic Mammals (2002)
The characteristics of echolocation signals used by a harbour porpoise (Phocoena phocoena) during a target detection experiment are described. A water-filled steel sphere (either 5.08 or 7.62 cm in diameter)…
Investigations on cetacean sonar XI: Intrinsic comparison of the wave shapes of some members of the Phocoenidae family
Kamminga, C.; Cohen Stuart, A.; Silber, G. K.
Aquatic Mammals (1996)
A comparison of the acoustic waveforms of three different species, Phocoena phocoena, Phocoena sinus and Neophocaena phocaenoides of the sub-family Phocoeninae is made with the species Phocoenoides dalli of the…