JOURNAL OF PLANKTON RESEARCH | VOLUME 14 | NUMBER 3 | PAGES 379-391 | 1992
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research-article |
Growth of Daphnia magna in the laboratory in relation to the nutritional state of its food species, Chlamydomonas reinhardtii
Department of Ecology and Evolutionary Biology, U-42, The University of Connecticut Storrs, CT 06268 1Present address:Department of Zoology, University of Otago PO Box 56, Dunedin, New Zealand 2Philadelphia Academy of Natural Sciences, 19th and Parkway Philadelphia, PA 19103, USA
Received on May 12, 1990; accepted on August 7, 1991 Growth rates and fecundities of Daphnia magna in the laboratory were higher, and mortalities were lower, when the animals were fed on log-phase cells of Chlamydomonas reinhardtii than on nitrogen- or phosphorus-limited cells. The effect appears to be related to the nutritional adequacy of the algae, rather than to their production of toxic or inhibitory substances, but it was not related directly to their nitrogen content or growth rates.