On the failure to detect haemosiderin in the melano-macrophages of dogfishScyliorhinus canicula (L.) after prolonged starvation
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.
KeywordsBlood Cell Functional Difference Teleost Fish Haemosiderin Deposit Tissue Breakdown
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- 2.Agius, C., Ph.D. Thesis, University of Stirling, Stirling 1979.Google Scholar
- 3.Agius, C., J. Zool., Lond.191 (1980) 11.Google Scholar
- 4.Agius, C., and Roberts, R. J., J. Fish Biol.19 (1981) 161.Google Scholar
- 5.Agbede, S. A., M.Sc. Thesis, University of Stirling, Stirling 1981.Google Scholar
- 6.Agius, C., J. Fish Dis.2 (1979) 337.Google Scholar
- 7.Agius, C., J. Fish Biol.18 (1981) 41.Google Scholar
- 8.Drury, R. A. B., and Wallington, E. A., Carleton's Histological Techniques. Oxford University Press, Oxford 1967.Google Scholar