QUICK SEARCH:   [advanced] Author: Keyword(s):
Home     Help     Feedback     Subscriptions     Archive     Search     Table of Contents

This Article Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Email this article to a friend Similar articles in this journal Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Google Scholar Articles by GREENAWAY, P. Search for Related Content PubMed Articles by GREENAWAY, P.

Journal of Experimental Biology 87,237-246 (1980)
Published by Company of Biologists 1980

Water Balance and Urine Production in the Australian Arid-Zone Crab Holthuisana Transversa

PETER GREENAWAY ¹

¹ School of Zoology, University of New South Wales, P.O. Box 1, Kensington, N.S.W. 2033, Australia

The permeability to tritiated water (hourly exchange fraction = 0·164) and the rate of urine flow (0·47% body weight/day) are lower than recorded in other freshwater decapods. The calculated net osmotic water flux (2·71% body weight/day) is 5 times the water output in the urine, indicating that there is extrarenal excretion of water. Water balance is maintained in the absence of urine production, again indicating an extrarenal excretory site. Water turnover is greater for crabs in burrows than for crabs kept in air of 98% R.H., indicating relatively favourable conditions of moisture availability at the base of the burrow.

This article has been cited by other articles:

				S. Morris and M. D. Ahern Regulation of urine reprocessing in the maintenance of sodium and water balance in the terrestrial Christmas Island red crab Gecarcoidea natalis investigated under field conditions J. Exp. Biol., August 15, 2003; 206(16): 2869 - 2881. [Abstract] [Full Text] [PDF]