Synecology of the Rotifera of the River Murray, South Australia

Abstract

Ecological data are presented on the planktonic Rotifera of the lower tract of the River Murray in South Australia. Thirty-five species are recorded. These are predominantly cosmopolitan limno- plankters; their synecology in the Murray, and that of the zooplankton per se reflects the variability of habitat conditions in a river that is alkaline (pH 7.5-8.7), turbid (10-225 nephelometric turbidity units) and moderately saline (0.2-1.0 g/l).