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The sterol composition of some shark livers

  • R. J. Morris (a1), J. A. Ballantine (a2) and J. C. Roberts (a2)


The results of detailed sterol analyses on the livers of seven species of sharks are presented. The sharks appear to have a very specific requirement for cholesterol as their sole component sterol (> 99 % total sterols), which several species of bony fish do not. In fact, from their sterol composition, sharks appear more similar to terrestrial vertebrate classes than bony fish. If, as has been suggested, sterol composition is a measure of evolutionary advancement, then this work presents biochemical evidence that sharks are not as primitive as has sometimes been assumed.



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Avrova, N. F., Obukhova, E. L. & Kreps, E. M., 1979. Gangliosides in the brain of fish and representatives of other vertebrate classes. In Physiology and Biochemistry of Marine and reshwater Animals (ed. Kreps, E. M.), pp. 130155. Laningrad: Nauka. [In Russian.]
Ballantine, J. A., Roberts, J. C. & Morris, R. J., 1975. Sterols of the cockle Cerastoderma edule, evaluation of thermostable liquid phases for the gas chromatography-mass spectrometric analysis of the trimethylsilyl ethers of marine sterols. Journal of Chromatography, 103, 289304.
Ballantine, J. A., Roberts, J. C. & Morris, R. J., 1976. Marine sterols. III. The sterol compositions of oceanic jellyfish. The use of gas chromatography-mass spectrometry techniques to identify unresolved components. Biomedical Mass Spectrometry, 3, 1420.
Ballantine, J. A., Lavis, A., Roberts, J. C., Morris, R. J., Elsworth, J. F. & Cragg, G. M. L., 1978. Marine sterols. VII. The sterol compositions of oceanic and coastal marine Annelida species. Comparative Biochemistry and Physiology, 61B, 4347.
Ballantine, J. A., Lavis, A. & Morris, R. J., 1979. Sterols of the phytoplankton – effects of illumination and growth stage. Phytochemistry, 18, 14591466.
Bergmann, W., 1962. Sterols, their structure and distribution. In Comparative Biochemistry, vol. 3 (ed. Florkin, M. and Mason, H. S.), pp. 103162. Academic Press.
Folch, J., Lees, M. & Sloane Stanley, G. H., 1957. A simple method for the isolation and purification of total lipids from animal tissues. Journal of Biological Chemistry, 226, 497509.
Goad, L. J., 1976. The sterols of marine algae and invertebrate animals. In Biochemical and Biophysical Perspectives in Marine Biology, vol. 3 (ed. Malins, D. C. and Sargent, J. R.), pp. 213318. Academic Press.
Gruber, S. H., 1977. The visual system of sharks: adaptions and capability. American Zoologist, 17, 453469.
Kreps, E. M., 1981. Brain lipids of elasmobranchs (an essay on comparative neurobiology). Comparative Biochemistry and Physiology, 68B, 363367.
Kreps, E. M., Avrova, N. F., Chebotareva, M. A., Chirkovskaya, E. V., Levitina, M. V., Pomazanskaya, L. F. & Pravdina, N. I., 1975. Some aspects of comparative biochemistry of brain lipids in teleost and elasmobranch fish. Comparative Biochemistry and Physiology, 52B, 293299.
Kreps, E. M., Avrova, N. F., Zabelinskii, S. A., Kruglova, E. E., Levitina, M. V., Obukhova, E. A., Pomazanskaya, L. F., Pravdina, N. I., Chebotareva, M. A. & Chirkov-ZKAYA, E. V., 1977. The biochemical evolution of the vertebrate brain. Journal of Evolutionary Biochemistry and Physiology, 13, 384394. [Translated from Russian, Consultants Bureau, New York.]
Morris, R. J., 1973 a. Changes in the lipid composition of Acanthephyra purpurea Milne Edwards (Crustacea: Decapoda) during its diurnal migration: a preliminary investigation. Journal of Experimental Marine Biology and Ecology, 13, 5561.
Morris, R. J., 1973 b. The Lipids of Marine Zooplankton. Ph.D. Thesis, University of Southampton.
Morris, R. J., Ballantine, J. A., Roberts, J. C. & Lavis, A., 1982. The sterols of some marine teleosts. Comparative Biochemistry and Physiology, 73B, 481484.
Moss, S. A., 1977. Feeding mechanisms in sharks. American Zoologist, 17, 355364.
Nes, W. R., 1974. Role of sterols in membranes. Lipids, 9, 596612.
Northcutt, R. G., 1977. Elasmobranch central nervous system organization and its possible evolutionary significance. American Zoologist, 17, 411429.
Pang, P. K. T., Griffith, R. W. & Atz, J. W., 1977. Osmoregulation in elasmobranchs. American Zoologist, 17, 365377.
Pomazanskaya, L. F., Chirkovskaya, E. V., Pravdina, N. I., Kruglova, E. E., Chebotareva, M. A. & Kreps, E. M., 1979. Phospholipids in the brain of fish and of other vertebrate classes. In Physiology and Biochemistry of Marine and Freshwater Animals (ed. Kreps, E. M.), pp. 2287. Leningrad: Nauka. [In Russian.]
Popper, A. N. & Fay, R. R., 1977. Structure and function of the elasmobranch auditory system. American Zoologist, 17, 443452.
Whitney, J.O'C., 1969. Sterols, fatty acids and sterol content in eggs and heptopancreas of the blue crab Callinectes sapidus (Rathbun). Acta embryologiae et morphologiae experimentalis, 1969, 111121.
Wourms, J. P., 1977. Reproduction and development in chondrichthyan fishes. American Zoologist, 17, 379410.

The sterol composition of some shark livers

  • R. J. Morris (a1), J. A. Ballantine (a2) and J. C. Roberts (a2)


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