Body Temperature of Dermochelys coriacea: Warm Turtle from Cold Water

  title={Body Temperature of Dermochelys coriacea: Warm Turtle from Cold Water},
  author={Wayne Frair and Robert G. Ackman and Nicholas Mrosovsky},
  pages={791 - 793}
The deep body temperature of a leatherback turtle, Dermochelys coriacea, taken out of cold water, was 18�C above the water temperature. A large size favoring heat retention from muscular activity is probably responsible for this differential. Cooling rates (k) in water, measured on a second animal, were in the order of 0.001�C per minute per degree of difference between body and ambient temperature. 
Anatomical Evidence for a Counter-current Heat Exchanger in the Leatherback Turtle (Dermochelys coriacea)
FRAIR et al.1 have recently given strong circumstantial evidence that leatherback turtles (Dermochelys coriacea) can maintain a deep body temperature at least 18° C higher than the ambient
Thermal and biochemical characteristics of the lipids of the leatherback turtle Dermochelys coriacea : evidence of endothermy
The lipids of leatherbacks exhibit features which are consistent with maintenance of a core temperature above ambient levels when in cool waters, and leatherback adipose tissues show levels of unsaturation in neutral lipid fractions intermediate between those of seals and sheep.
Body temperature of the loggerhead sea turtle Caretta caretta and the leatherback sea turtle Dermochelys coriacea during nesting
AbstractBody temperatures of loggerhead and leatherback turtles recorded during nesting excursions were found to be greater than sea temperatures. Leatherback turtles exhibited greater temperature
Metabolism of leatherback turtles, gigantothermy, and thermoregulation of dinosaurs
It is indicated that leatherbacks can use large body size, peripheral tissues as insulation, and circulatory changes, to maintain warm temperatures in the North Atlantic and to avoid overheating in the tropics.
Body temperatures of leatherback turtles (Dermochelys coriacea) in temperate waters off Nova Scotia, Canada
The leatherback sea turtle, Dermochelys coriacea (Vandelli, 1761), has the most extensive range of any reptile, migrating from tropical and subtropical nesting areas to distant foraging habitats, i...
Thermal Biology of Sea Turtles
The role of temperature in determining sexual differentiation of the embryos, incubation duration, emergence from the nest, activity, growth, survival, hibernation, internesting interval and distribution of sea turtles is discussed.
The dark side of light. Light pollution kills leatherback turtle hatchlings
The effect of light pollution on leatherback turtle hatchlings in Tobago and the measures for their protection are discussed.


Thermoregulation in a Brooding Female Indian Python, Python molurus bivittatus
At varying environmental temperatures, measurements of body temperatures and gas exchange of a female Indian python show that during the brooding period this animal can regulate its body temperature by physiological means analogous to those in endotherms.
Regulation of body temperature by the bluefin tuna.
Physiological thermoregulation in turtles.
Peripheral vascular responses to heating and cooling appear to represent a means of changing functional insulation and may contribute to the thermoregulatory capacities of turtles under natural conditions.
Heating and cooling rates in four species of turtles.
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    Comparative biochemistry and physiology. A, Comparative physiology
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Body temperature of dinosaurs and its relationships to their extinction
As dinosaur skeletons resemble those of birds, the soft parts may also have been similar. Hence dinosaurs may have had separate arterial and venous circulations and may have been to some extent
Growth and Function of the Subcutaneous Fat of the Elephant Seal
In elephant seals (Mirounga leonina, Linn.), there is an enormous development of the hypodermis in which all the dissectible body fat is deposited, and its excessive depletion would almost certainly lead to death in the aquatic environment.
  • Robert T Barker
  • Environmental Science, Geography
    Evolution; international journal of organic evolution
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The fossil evidence strongly suggests that no small dinosaurs ever existed in either Jurassic or Cretaceous, and the most convincing proof of the lack of truly small dinosaur species is their absence in the carefully studied microvertebrate concentrates.
and P
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