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Rotifer distribution in relation to temperature and oxygen content

  • Ernst Mikschi
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 52)

Abstract

Lunzer Obersee, a small lake located at an altitude of 1100 m above sea level, was investigated from July 1985 to October 1987. The rotifer community consists of 7 dominant species, 7 subdominant species and 34 species which occasionally occurred in the plankton. The dominant species show rather different demands in relation to temperature and oxygen content; e.g.: Filinia hofmanni was found at a wide range of oxygen concentrations (0.6–13.3 mg O21−1) and low temperatures (4–6 °C), living in the upper water layers (1–7 m) during spring and in the deeper, anoxic zone in summer. In contrast, Asplanchna priodonta was found at rather high oxygen contents (> 9 mg O2 l−1), and showed a wide range of temperature tolerance (4–15 °C).

On the basis of field data the temperature and oxygen requirements of several species are described and discussed.

Key words

rotifers distribution temperature oxygen content 

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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • Ernst Mikschi
    • 1
  1. 1.PerchtoldsdorfAustria

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