@article{Guhl1994Seaso-8326,
  year={1994},
  doi={10.1111/j.1574-6941.1994.tb00115.x},
  title={Seasonal development ciliate communities in of hypolimnetic a eutrophic pond},
  number={4},
  volume={14},
  journal={FEMS Microbiology Ecology},
  pages={293--306},
  author={Guhl, Barbara E. and Finlay, Bland J. and Schink, Bernhard}
}

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    <dc:contributor>Finlay, Bland J.</dc:contributor>
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    <dcterms:abstract xml:lang="deu">The ciliated protozoan communities in the hypolimnion of a highly productive pond were investigated over two years. Three physiological groups could be distinguished: (a) microaerobic ciliates which tracked the oxic-anoxic boundary within the stratified water column; (b) anaerobic ciliates with endosymbiotic methanogens; and (c) anaerobes without endosymbiotic methanogens. Both groups of anaerobes were confined to the anoxic zone of the hypolimnion. Community biomass was dominated by microaerobic ciliates which had on average 20 times larger cells than anaerobic ciliates. Abundance and biomass of microaerobic ciliates decreased over the summer, while anaerobic ciliates increased. This  reflected a spatial shift in the availability of inorganic nutrients and, as a result, of ciliate food from the epi- and metalimnion to the hypolimnion. The low biomass production of anaerobic ciliates was consistent with the low theoretical growth efficiency of anaerobic metabolism. Ciliate species displayed characteristic spatial and seasonal distribution patterns within the water column which were similar in both years investigated. Spatial and temporal distribution was mainly governed by two factors: (1) the distribution of dissolved oxygen; and (2) the availability of food. Distribution patterns were not related to chemical gradients other than the oxygen gradient, but they were correlated with the distribution of major food sources.</dcterms:abstract>
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    <dc:creator>Finlay, Bland J.</dc:creator>
    <dcterms:issued>1994</dcterms:issued>
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    <dc:contributor>Schink, Bernhard</dc:contributor>
    <dc:creator>Guhl, Barbara E.</dc:creator>
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    <dc:contributor>Guhl, Barbara E.</dc:contributor>
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    <dc:creator>Schink, Bernhard</dc:creator>
    <dcterms:title>Seasonal development ciliate communities in of hypolimnetic a eutrophic pond</dcterms:title>
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    <dcterms:bibliographicCitation>First publ. in: FEMS Microbiology Ecology 14 (1994), pp. 293-306</dcterms:bibliographicCitation>
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