Water Content

  • Eric B. Edney
Part of the Zoophysiology and Ecology book series (ZOOPHYSIOLOGY, volume 9)


Over 99% of all the molecules in a living arthropod are water molecules, but because of the very high molecular weights of the large organic molecules of animal tissues, water content expressed as a precentage of total weight is very much less than its mole fraction—about 70%. In fact, as Table 1 shows, water content is very variable, both within and between species of arthropods, and we may briefly consider the reasons for such variability.


Permeability Dust Hydration Depression Dehydration 


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Copyright information

© Springer-Verlag Berlin Heidelberg 1977

Authors and Affiliations

  • Eric B. Edney
    • 1
  1. 1.Laboratory of Nuclear Medicine and Radiation BiologyUniversity of CaliforniaLos AngelesUSA

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