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Hydrobiologia

, Volume 58, Issue 3, pp 271–275 | Cite as

Starvation and growth in the gastropod Planorbarius corneus (L.)

  • F. Moriarty
Article

Abstract

The effect of different degrees of partial starvation on growth was studied in the fresh-water gastropodPlanorbarius corneus (L.). Two indices of growth were used, fresh weight and shell diameter, and for both indices the rate of growth decreased proportionately at least as much as the proportion of time that food was absent. This suggests that growth is not regulated in this species, and some doubts are expressed about the validity of results with other invertebrate species that suggest growth is regulated.

Keywords

Planorbarius corneus growth starvation 

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References

  1. Calow, P. 1973. On the regulatory nature of individual growth: some observations from freshwater snails. J. Zool., Lond. 170: 415–428.Google Scholar
  2. Hubbell, S. P., 1971. Of sowbugs and systems: the ecological bionergetics of a terrestrial isopod. In Systems analysis and simulation in ecology, vol. I. 269–324. Patten, B. C. (Ed.), New York and London, Academic Press.Google Scholar
  3. Snedecor, G. W. & Cochran, W. G. 1956. Statistical methods applied to experiments in agriculture and biology. Ames, Iowa, Iowa State College Press.Google Scholar

Copyright information

© Dr. W. Junk b. v. publishers 1978

Authors and Affiliations

  • F. Moriarty
    • 1
  1. 1.Monks Wood Experimental StationInstitute of Terrestrial EcologyEngland

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