The sperm whale
Structure and proportions of the spermaceti organ in the sperm whale
... 1-9 As a basis for understanding the function of the spermaceti organ of the sperm whale, macrocephalus L., details of the structure and proportions of the head, skin, blubber and lungs [r] ...
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Physical properties of spermaceti oil in the sperm whale
... In the paper dealing with the buoyancy control function of the spermaceti organ Clarke, 1978b it is shown that the whale only needs to drop the temperature of the spermaceti oil about 3 [r] ...
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Buoyancy control as a function of the spermaceti organ in the sperm whale
... Control of buoyancy The change in temperature of spermaceti oil necessary to achieve neutral buoyancy The loss of heat from the spermaceti oil necessary to achieve neutral buoyancy The m[r] ...
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Size and shape variations of the bony components of sperm whale cochleae
... the sperm whale positions prior to the strandings are missing as well as information on surrounding naval ...of sperm whale ears between individu- als became rapidly visually evident during ...
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Size and shape variations of the bony components of sperm whale cochleae
... the sperm whale positions prior to the strandings are missing as well as information on surrounding naval ...of sperm whale ears between individu- als became rapidly visually evident during ...
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Male sperm whale acoustic behavior observed from multipaths at a single hydrophone
... These click level variations are in sync with the ICI variations, suggesting click level and ICI adjustment to the target range, as found on some smaller odontocetes, as dis- cussed below. Yet some sperm ...
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Sperm whale predator prey interactions involve chasing and buzzing, but no acoustic stunning
... for sperm whales using high resolution on-animal meas- urements to uncover the movement and echolocation behaviour before and during prey ...capture. Sperm whales produce the most powerful biological sounds ...
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Biological significance of sperm whale responses to sonar: comparison with anti predator responses
... The sperm whale has been classified as Vulnerable in the IUCN Red List of Threatened ...the sperm whale stock underwent a global population decline, which is cur- rently slowly recovering from ...
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Sperm whale sound production studied with ultrasound time/depth recording tags
... conclusion, sperm whale click production in terms of output and frequency content is unaffected by hydrostatic reductions in available air volume down to depths of at least 700 ...in sperm whales is ...
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Off-axis effects on the multipulse structure of sperm whale usual clicks with implications for sound production
... instrumented sperm whale are consistent with there being three, spatially separated exit paths for sound from the nasal ...live sperm whale that the powerful, and highly directional p1 pulse ...
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Acoustic Repertoire of Sperm Whale (Physeter macrocephalus) Bachelor Groups in the Waters Surrounding Ischia, Italy (Tyrrhenian Sea)
... of whale and dolphin ...While sperm whale vocalizations have been recorded, there has yet to be a complete description of the acoustic repertoire of the sperm whales in the ...the sperm ...
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Sperm whale diet variation by sex, location, year, social group and clan : Evidence from stable isotopes
... of sperm whales Physeter macrocephalus by measuring carbon and nitrogen isotope ratios in 106 sloughed skin samples and 10 squid beaks (Histioteuthidae ...from sperm whale ...of sperm whales ...
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Lipid class and depth specific thermal properties in the blubber of the short finned pilot whale and the pygmy sperm whale
... DISCUSSION Thermal properties of the integument in two deep-diving cetacean species, the short-finned pilot whale (G. macrorhynchus) and the pygmy sperm whale (K. breviceps), were investigated via ...
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Sperm whale codas may encode individuality as well as clan identity
... individual sperm whales throughout ...one whale for many hours, it obtains a complete record of the coda production of that animal concomitant with its movement and diving ...
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New discoveries of fossil toothed whales from Peru: our changing perspective of beaked whale and sperm whale evolution
... raptorial sperm whales able to catch preys of a relatively large size persisted until the latest ...killer whale Orcinus orca, will similarly acquire the ability to prey upon large preys, including ...
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Individual, unit and vocal clan level identity cues in sperm whale codas
... 5. Conclusion Individual differences in vocalizations are ubiquitous among animals, but the degree of stereotypy we document in one socially learned coda type (1 + 1 + 3) among an entire population of sperm ...
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First year sperm whale calves echolocate and perform long, deep dives
... diving sperm whales have a complex social structure and the biggest brains on the planet, but very litle is known about the ontogeny of their diving, foraging, echolocaton, and communicaton ...for sperm ...
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Structure, material characteristics and function of the upper respiratory tract of the pygmy sperm whale
... Miller et al., 2004), presumably to maintain buoyancy and delay SUMMARY Cetaceans are neckless, so the trachea is very short. The upper respiratory tract is separate from the mouth and pharynx, and the dorsal blowhole ...
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First records of dwarf sperm whale (Kogia sima) from the Union of the Comoros
... Dwarf sperm whales feed primarily on cephalopods and to a lesser extent on crustaceans and fishes, based on stomach con- tents of stranded animals (Ross 1979a; Cardona- Maldonado & Mignucci-Giannoni ...dwarf ...
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Methods for estimating sperm whale abundance from passive acoustic line transect surveys
... We take the linking of clicks from a survey (or transect) into click segments “known” to come from the same whale, as given. It may be that more than one segment comes from the same whale, but this we do ...
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