1887

Abstract

Migrations of ciliated protozoa between the benthos and water column of a productive lake are reversible and linked to seasonal changes in oxygen availability. Maximum densities of planktonic populations are maintained for periods of several months at depths where the oxygen concentration is l mgl or less. With the possible exception of one genus () there was no evidence for periodic vertical migration within a season. The supposed unconditional requirement for oxygen in large free-living ciliates is questioned.

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/content/journal/micro/10.1099/00221287-123-1-173
1981-03-01
2024-12-07
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References

  1. Bick H. 1972 Ciliated Protozoa Geneva: World Health Organization;
    [Google Scholar]
  2. Birge E.A., Juday C. 1911 The Inland Lakes of Wisconsin Wisconsin Geological and Natural History Survey, Bull. 23, Sci. Ser. No. 7 Madison, Wisconsin
    [Google Scholar]
  3. Corliss J.O. 1979 The Ciliated Protozoa, 2nd edn.. New York: Pergamon Press;
    [Google Scholar]
  4. Davison W. 1977; Sampling and handling pro-cedures for the polarographic measurement of oxygen in hypolimnetic waters. Freshwater Biology 7:393–401
    [Google Scholar]
  5. Davison W. 1980; The supply of iron and man-ganese to an anoxic lake basin. Nature, London in the Press
    [Google Scholar]
  6. Fenchel T., Perry T., Thane A. 1977; Anaerobiosis and symbiosis with bacteria in freeliving ciliates. Journal of Protozoology 24:154–163
    [Google Scholar]
  7. Finlay B.J. 1980; Temporal and vertical distri-bution of ciliophoran communities in the benthos of a small eutrophic loch with particular reference to the redox profile. Freshwater Biology 10:15–34
    [Google Scholar]
  8. Finlay B.J., Laybourn J., Strachan I. 1979; A technique for the enumeration of benthic ciliated protozoa. Oecologia 39:375–377
    [Google Scholar]
  9. Goulder R. 1974; The seasonal and spatial distribution of some benthic ciliated protozoa in Esthwaite Water. Freshwater Biology 4:127–147
    [Google Scholar]
  10. Goulder R. 1980; The ecology of two species of primitive ciliated protozoa commonly found in standing waters (Loxodes magnus Stokes and L. striatus Penard). Hydrobiologia 72:131–158
    [Google Scholar]
  11. Heaney S.I. 1974; A pneumatically-operated sampler for close intervals of depth. Freshwater Biology 4: 103:106
    [Google Scholar]
  12. Heaney S.I., Talling J.F. 1980; Ceratium hirundinella - ecology of a complex, mobile, and successful plant. Report of the Freshwater Biological Association 48:27–40
    [Google Scholar]
  13. Jones J.G. 1978; The distribution of some freshwater planktonic bacteria in two stratified eutrophic lakes. Freshwater Biology 8:127–140
    [Google Scholar]
  14. Lindeman R.L. 1942; Experimental simulation of winter anaerobiosis in a senescent lake. Ecology 23:1–13
    [Google Scholar]
  15. Mortimer C.H. 1941; The exchange of dissolved substances between mud and water in lakes. Journal of Ecology 29:280–329
    [Google Scholar]
  16. Muller M. 1980; The hydrogenosome. In The Eukaryotic Microbial Cell. Edited by Gooday G.W., Lloyd D., Trinci A.P.J. Cambridge University Press;
    [Google Scholar]
  17. De Puytorac P., Njiné T. 1970; Sur l’ultrastruc- ture des Loxodes (Cilies Holotriches). Protistologica 6:427–444
    [Google Scholar]
  18. Webb M.G. 1961; The effects of thermal stratification on the distribution of benthic protozoa in Esthwaite Water. Journal of Animal Ecology 30:137–151
    [Google Scholar]
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