Experimental & Applied Acarology

, Volume 15, Issue 4, pp 219–231 | Cite as

Seasonal lipid contents of Antarctic microarthropods

  • Peter Convey
Article

Abstract

A technique for the accurate determination of lipid content of very small quantities of biological tissue was applied to two Antarctic oribatid mites,Alaskozetes antarcticus andHalozetes belgicae, and a collembolan,Cryptopygus antarcticus. Analysis of monthly samples of the three species, collected between November 1989 and March 1991, revealed little evidence of any seasonal pattern of lipid deposition or use. MaleAlaskozetes were the only exception, showing very low lipid levels for a short period of the austral summer, followed by rapid deposition before the onset of winter. Mean lipid contents of the three species over the study period were 10–15% of mean dry weight. There was evidence of a seasonal pattern of egg formation and oviposition in bothAlaskozetes andHalozetes, but this was not reflected in the observed lipid levels. Feeding activity was mostly restricted to the summer months (November–March); a temporary resumption of feeding in winter (late August 1990) was followed by an increase in lipid content in both sexes ofAlaskozetes.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. Barnes, H. and Blackstock, J., 1973. Estimation of lipids in marine animals and tissues: detailed investigation of the sulphophosphovanillin method for ‘total’ lipids. J. Exp. Mar. Biol. Ecol., 12: 103–118.Google Scholar
  2. Bligh, E.G. and Dyer, W.J., 1959. A rapid method of total lipid extraction and purification. Can. J. Biochem. Physiol., 37: 911–917.Google Scholar
  3. Block, W., 1984. Terrestrial microbiology, invertebrates and ecosystems. In: R.M. Laws (Editor), Antarctic Ecology, Vol. I. Academic Press, London, pp. 163–236.Google Scholar
  4. Block, W., 1990. Cold tolerance of insects and other arthropods. Phil. Trans. R. Soc. Lond. B., 326: 613–633.Google Scholar
  5. Burn, A.J., 1981. Feeding and growth in the Antarctic collembolanCryptopygus antarcticus. Oikos, 36: 59–64.Google Scholar
  6. Burn, A.J., 1986. Feeding rates of the cryptostigmatid miteAlaskozetes antarcticus (Michael). Br. Antarct. Surv. Bull., 71: 11–17.Google Scholar
  7. Cannon, R.J.C. and Block, W., 1988. Cold tolerance of microarthropods. Biol. Rev., 63: 23–77.Google Scholar
  8. Clarke, A., 1983. Life in cold water: the physiological ecology of polar marine ectotherms. Oceanogr. Mar. Biol. Ann. Rev., 21: 341–453.Google Scholar
  9. Clarke, A., Ellis-Evans, j.C., Sanders, M.W. and Holmes, L.J., 1989. Patterns of energy storage inPseudoboekella poppei (Crustacea, Copepoda) from two contrasting lakes on Signy Island, Antarctica. Hydrobiologia, 172: 183–191.Google Scholar
  10. Clarke, A., Holmes, L.J. and Gore, D.J., 1992. Proximate and elemental composition of gelatinous Zooplankton from the Southern Ocean. J. Exp. Mar. Biol. Ecol., 155: 55–68.Google Scholar
  11. Foelix, R.F., 1982. Biology of Spiders. Harvard University Press, Cambridge, MA, 306 pp.Google Scholar
  12. Gilbert, L.I. and O'Connor, J.D., 1970. Lipid metabolism and transport in arthropods. In: M. Florkin and B.T. Scheer (Editors), Chemical Zoology, Vol. V. Academic Press, London, pp. 229–253.Google Scholar
  13. Sargent, J.R. and Henderson, R.J., 1986. Lipids. In: E.D.S. Corner and S.C.M. O'Hara (Editors), The Biological Chemistry of Marine Copepods. Oxford University Press, Oxford, pp. 59–108.Google Scholar
  14. Testerink, G.J., 1981. Starvation in a field population of litter-inhabiting Collembola—methods for determining food reserves in small arthropods. Pedobiologia, 21: 427–433.Google Scholar
  15. Wigglesworth, V.B., 1972. The circulatory system and associated tissues. In: The Principles of Insect Physiology, 7th ed. Chapman and Hall, London.Google Scholar
  16. Young, S.R. and Block, W., 1980. Some factors affecting metabolic rate in an Antarctic mite. Oikos, 34: 178–185.Google Scholar

Copyright information

© Elsevier Science Publishers B. V 1992

Authors and Affiliations

  • Peter Convey
    • 1
  1. 1.Natural Environment Research CouncilBritish Antarctic SurveyCambridgeUK

Personalised recommendations