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Hepatic urea biosynthesis in the euryhaline elasmobranch Carcharhinus leucas

  1. W. Gary Anderson1,*,
  2. Jonathan P. Good1,
  3. Richard D. Pillans2,3,
  4. Neil Hazon1,
  5. Craig E. Franklin3

Article first published online: 13 SEP 2005

DOI: 10.1002/jez.a.199

Issue

Journal of Experimental Zoology Part A: Comparative Experimental Biology

Journal of Experimental Zoology Part A: Comparative Experimental Biology

Volume 303A, Issue 10, pages 917–921, 1 October 2005

Additional Information

How to Cite

Anderson, W. G., Good, J. P., Pillans, R. D., Hazon, N. and Franklin, C. E. (2005), Hepatic urea biosynthesis in the euryhaline elasmobranch Carcharhinus leucas. J. Exp. Zool., 303A: 917–921. doi: 10.1002/jez.a.199

Author Information

  1. 1

    Department of Zoology, University of Manitoba, Duff Roblin Building, Winnipeg, Man., Canada R3T 2N2

  2. 2

    Co-operative Research Centre for Coastal Zone, Estuary and Waterway Management, Brisbane, Australia

  3. 3

    School of Life Sciences, The University of Queensland, Brisbane, Qld. 4072, Australia

*Department of Zoology, University of Manitoba, Duff Roblin Building, Winnipeg, Man., Canada R3T 2N2

Publication History

  1. Issue published online: 13 SEP 2005
  2. Article first published online: 13 SEP 2005
  3. Manuscript Accepted: 3 MAY 2005
  4. Manuscript Received: 3 JAN 2005

Funded by

  • NERC grant. Grant Number: NER/A/S/2000/01270
  • CRC Coastal Zone Estuary and Waterway Management postgraduate top-up scholarship

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Abstract

Plasma urea levels and hepatic urea production in the euryhaline bull shark, Carcharhinus leucas, acclimated to freshwater and seawater environments were measured. It was found that plasma urea concentration increased with salinity and that this increase was, in part, the result of a significant increase in hepatic production of urea. This study provides direct evidence that hepatic production of urea plays an important role in the osmoregulatory strategy of C. leucas. J. Exp. Zool. 303A:917–921, 2005. © 2005 Wiley-Liss, Inc.

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