Experientia

, Volume 39, Issue 1, pp 64–66 | Cite as

On the failure to detect haemosiderin in the melano-macrophages of dogfishScyliorhinus canicula (L.) after prolonged starvation

  • C. Agius
Short Communications Biochemistry

Summary

When teleost fish are starved, the number of melano-macrophages increases markedly within the spleen and kidney. This increased pigment deposition is almost certainly a consequence of catabolic tissue breakdown. One of the pigments, haemosiderin, resulting from the breakdown of haemoglobin of red blood cells, accumulates almost exclusively in the melano-macrophages of the spleen but not within the kidney melano-macrophages. In contrast when elasmobranchs, as exemplified by the dogfishScyliorhinus canicula are starved, melano-macrophages accumulated predominantly in the liver and to a lesser extent in the spleen. However no haemosiderin deposits could be detected in the melano-macrophages of either of these two organs. This is suggestive of functional differences between the melanomacrophages of elasmobranchs and teleosts.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

Refences

  1. 2.
    Agius, C., Ph.D. Thesis, University of Stirling, Stirling 1979.Google Scholar
  2. 3.
    Agius, C., J. Zool., Lond.191 (1980) 11.Google Scholar
  3. 4.
    Agius, C., and Roberts, R. J., J. Fish Biol.19 (1981) 161.Google Scholar
  4. 5.
    Agbede, S. A., M.Sc. Thesis, University of Stirling, Stirling 1981.Google Scholar
  5. 6.
    Agius, C., J. Fish Dis.2 (1979) 337.Google Scholar
  6. 7.
    Agius, C., J. Fish Biol.18 (1981) 41.Google Scholar
  7. 8.
    Drury, R. A. B., and Wallington, E. A., Carleton's Histological Techniques. Oxford University Press, Oxford 1967.Google Scholar

Copyright information

© Birkhäuser Verlag 1983

Authors and Affiliations

  • C. Agius
    • 1
  1. 1.Institute of AquacultureUniversity of StirlingStirling(Scotland)

Personalised recommendations