Effects of cadmium on a microbial food chain, Chlamydomonas reinhardii and Tetrahymena vorax.


A steady-state microbial food chain consisting of the green alga Chlamydomonas reinhardii and the ciliated protozoan Tetrahymena vorax was established in a two-stage, nitrogen-limited chemostat. The lowest concentration of cadmium which produced a toxic effect at the population level was between 7.5 and 10 micrograms l-1. The algal population acclimated to… (More)


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