1887

Abstract

The microbial populations of the littoral (shallow water) and profundal (deep water) surface sediments of Blelham Tarn and the South Basin of Windermere were examined. Microbial numbers (direct counts), biomass (ATP) and activity (electron transport system activity, CO evolution and [C]glucose mineralization) were consistently higher in the profundal zone of both lakes, the difference being greater and average values higher in the more productive Blelham Tarn. The interstitial water of the profundal sediments contained higher concentrations of available substrates (carbohydrate, protein and amino acids). There were marked differences in the particle size distribution of the sediments with a greater proportion of small particles (< 45 μm in size) in the profundal samples. The smaller particles from both sites were colonized by a larger number of bacteria and contained higher electron transport system activity per gram dry weight. There was a greater diversity of benthic animals in the littoral zone of both lakes but larger numbers of ciliated protozoa were observed in the profundal sediments.

Loading

Article metrics loading...

/content/journal/micro/10.1099/00221287-117-2-285
1980-04-01
2024-12-06
Loading full text...

Full text loading...

/deliver/fulltext/micro/117/2/mic-117-2-285.html?itemId=/content/journal/micro/10.1099/00221287-117-2-285&mimeType=html&fmt=ahah

References

  1. Bradford M. M. M. 1976; A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of proteindye binding.. Analytical Biochemistry 72:248–254
    [Google Scholar]
  2. Dick M. W. 1971; The ecology of Saprolegniaceae in lentic and littoral muds with a general theory of fungi in the lake ecosystem.. Journal of General Microbiology 65:325–337
    [Google Scholar]
  3. Fenchel T. 1972; Aspects of decomposer food chains in marine benthos.. Verhandlungsbericht der Deutschen Zoologischen Gesellschaft, 65 Jahresversammlung 14:14–22
    [Google Scholar]
  4. Fenchel T., Jørgensen B. B. 1977; Detritus food chains of aquatic ecosystems: the role of bacteria.. Advances in Microbial Ecology 1:1–58
    [Google Scholar]
  5. Finlay B. J., Laybourn J., Strachan I. 1979; A technique for the enumeration of benthic ciliated protozoa.. Oecologia 39:375–377
    [Google Scholar]
  6. Hargrave B. T. 1970; The effect of a depositfeeding amphipod on the metabolism of benthic microflora.. Limnology and Oceanography 15:21–30
    [Google Scholar]
  7. Hargrave B. T. 1972; Aerobic decomposition of sediment and detritus as a function of particle surface area and organic content.. Limnology and Oceanography 17:583–596
    [Google Scholar]
  8. Hargrave B. T. 1976; The central role of invertebrate faeces in sediment decomposition.. Symposia of the British Ecological Society 17:301–321
    [Google Scholar]
  9. Hobbie J. E., Crawford C. C. 1969; Bacterial uptake of organic substrate: new methods of study and application to eutrophication.. Verhandlungen der Internationalen Vereinigung für theoretische und angewandte Limnologie 17:725–730
    [Google Scholar]
  10. Jones J. G. 1971; Studies on freshwater bacteria: factors which influence the population and its activity.. Journal of Ecology 59:593–613
    [Google Scholar]
  11. Jones J. G. 1979; Microbial activity in lake sedi-ments with particular reference to electrode potential gradients.. Journal of General Microbiology 115:19–26
    [Google Scholar]
  12. Jones J. G., Simon B. M. 1975a; An investigation of errors in direct counts of aquatic bacteria by epifluorescence microscopy, with reference to a new method for dyeing membrane filters.. Journal of Applied Bacteriology 39:317–329
    [Google Scholar]
  13. Jones J. G., Simon B. M. 1975b; Some observations on the fluorometric determination of glucose in freshwater.. Limnology and Oceanography 20:882–887
    [Google Scholar]
  14. Jones J. G., Simon B. M. 1977; Increased sensitivity in the measurement of ATP in freshwater samples with a comment on the adverse effect of membrane filtration.. Freshwater Biology 7:253–260
    [Google Scholar]
  15. Jones J. G., Simon B. M. 1979; The measurement of electron transport system activity in freshwater benthic and planktonic samples.. Journal of Applied Bacteriology 46:305–315
    [Google Scholar]
  16. Jones J. G., Simon B. M. 1980; Decomposition processes in the profundal region of Blelham Tarn and the Lund Tubes.. Journal of Ecology in the Press
    [Google Scholar]
  17. Jones J. G., Orlandi M.J.L.G., Simon B. M. 1979; A microbiological study of sediments from the Cumbrian lakes.. Journal of General Microbiology 115:37–48
    [Google Scholar]
  18. Karl D. M., Holm-Hansen O. 1978; Methodology and measurement of adenylate energy charge ratios in environmental samples.. Marine Biology 48:185–197
    [Google Scholar]
  19. Kochert G. 1978; Protein determination by dye binding.. In Handbook of Phycological Methods: Physiological and Biochemical Methods pp. 92–93 Hellebust J.A, Craigie J.S. Edited by Cambridge: Cambridge University Press;
    [Google Scholar]
  20. Mackereth F. J. H., Heron J., Talling J. F. 1978; Water analysis: some revised methods for limnologists.. Freshwater Biological Association Scientific Publication36
    [Google Scholar]
  21. Marshall K. C. 1976 Interfaces in Microbial Ecology. Cambridge, Mass: Harvard University Press;
    [Google Scholar]
  22. Mortimer C. H. 1942; The exchange of dissolved substances between mud and water in lakes. Ill and IV.. Journal of Ecology 30:147–201
    [Google Scholar]
  23. North B. B. 1975; Primary amines in California coastal waters: utilization by phytoplankton.. Limnology and Oceanography 20:20–27
    [Google Scholar]
  24. Owens T. G., King F. D. 1975; The measurement of respiratory electron-transport system activity in marine zooplankton.. Marine Biology 30:27–36
    [Google Scholar]
  25. Udenfriend S., Stein S., Böhlen P., Dairman W., Leimgruber W., Weigele M. 1972; Fluorescamine: a reagent for assay of amino acids, peptides, proteins and primary amines in the picomole range.. Science 178:871–872
    [Google Scholar]
  26. Whitfield M. 1969; Eh as an operational parameter in estuarine studies.. Limnology and Oceanography 14:547–558
    [Google Scholar]
  27. Willoughby L. G. 1961; The ecology of some lower fungi at Esthwaite Water.. Transactions of the British Mycological Society 44:305–332
    [Google Scholar]
  28. Willoughby L. G. 1965; Some observations on the location of fungal activity at Blelham Tarn.. Hydrobiologia 25:352–356
    [Google Scholar]
  29. Willoughby L. G. 1969; A study of the aquatic actinomyctes of Blelham Tarn.. Hydrobiologia 34:465–483
    [Google Scholar]
  30. Willoughby L. G. 1974; The ecology of lower freshwater phycomycetes in the tube experiment at Blelham Tarn.. Veröffentlichungen des Instituts für Meeresforschung in Bremerhaven Supplement 5:175–195
    [Google Scholar]
  31. Zobell C. E. 1943; The effect of solid surfaces upon bacterial activity.. Journal of Bacteriology 46:39–56
    [Google Scholar]
/content/journal/micro/10.1099/00221287-117-2-285
Loading
/content/journal/micro/10.1099/00221287-117-2-285
Loading

Data & Media loading...

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error