Fishionary

A blog about fish words!

By Abigail Lynch

A blog about fish words!

endotherm

Thermoregulation

June 19, 2015 by abby

Thermoregulation is the process by which an organism controls its internal temperature.  Fish have many different mechanisms for regulating their temperature.  Most fish are ectothermic, using their environmental temperature to manage their body temperature, but some fish are endothermic, having the metabolic ability to internally manage temperature.  Poikilothermic fish are ectotherms which have no control over … [Read more…]

Posted in: T Tagged: ectotherm, endotherm, eurytherm, poikilotherm, stenotherm, temperature, thermoregulation

Endotherm

April 10, 2015 by abby

Unlike ectotherms, which rely upon environmental temperatures, endotherms are able to metabolically control their body temperature.  This thermoregulatory strategy is rare among fish but is present in tunas and some sharks, including the Great White Shark (Carcharodon carcharias) and Shortfin Mako Shark (Isurus oxyrinchus).  Endothermic tunas and sharks use a network of capillaries in their swimming muscles, … [Read more…]

Posted in: E Tagged: endotherm, endothermic, temperature, thermoregulation

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