Über Verbreitung und Ökologie von Sphaeriiden im Zürichsee (Mollusca: Eulamellibranchiata) |
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| Authors: | Jakob E Walter J G J Kuiper |
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| Institution: | 1. Zoologisches Museum der Universit?t Zürich, Künstlergasse 16, CH-8006, Zürich
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| Abstract: | At eight different areas on the shores of the lower part of Lake Zürich sphaeriids were collected at depths of 3, 6, 9, 12 and 15 m. 368 samples, each 1/16 m2 in size, contained 19,780 individuals, which belong to 14 species. The following points were examined: depth distributions of the species, associations between different species and the dependence of their abundance on environmental factors. Over the period of one year fish were kept away from test-sites in order to estimate their influence on the sphaeriid fauna. |
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