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Ectothermic's ability to regulate body temperature in ghost crabs. (South Carolina Academy of Sciences Abstracts).

An ectothermic's ability to regulate its body temperature influences a variety of behavioral patterns and physiological processes (ie., predator/prey, reproduction, digestion). To better understand the thermodynamics of ectotherms we must first be able to accurately measure their body temperature. The first part of this study looked at measuring body temperature at several different places, on and inside, the ghost crab Ocypode quadrata. Our results show that both the claw and body temperatures were usually within 1/2[degrees]C of each other. The second part of the study was to document whether heat transfer occurs between different body parts. Specifically we were interested in determining whether the larger cheliped on O. quadrata and Uca pugilator influences thermoregulation. To do so, two experiments were run, one using live crabs and the other freshly dead crabs. Thermocouples were attached to the body of a crab and then its claw was immersed in an ice bath. The resultant change in the body temperature of the live crabs was compared to the change in body temperature of the dead crabs. Evidence for physiological thermoregulation was assessed from the differences from the two data sets.
Jason Bishop, Mary Crowe
Department of Biology
Coastal Carolina University
EPSCoR
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Title Annotation:crustacean research
Author:Bishop, Jason; Crowe, Mary
Publication:Bulletin of the South Carolina Academy of Science
Article Type:Brief Article
Date:Jan 1, 2003
Words:202
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