Rotifer distribution in relation to temperature and oxygen content

✍ Scribed by Ernst Mikschi

• Book ID: 104623593
• Publisher: Springer
• Year: 1989
• Tongue: English
• Weight: 351 KB
• Volume: 186-187
• Category: Article
• ISSN: 1573-5141
• DOI: 10.1007/bf00048914

✦ Synopsis

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 021-1) 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 02 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.