✍ Scribed by Dr. Volker Lüderitz; Andreas Nicklisch
No coin nor oath required. For personal study only.
Responses of different planktonic algae species to copper treatment were tested using semicontinuous culture and compared with studies on copper-induced changcs in species composition of phytoplankton samples. Blue-green algae exhibit lower ECloo-values than diatoms and Scened e s m us.
Thc four tested strains of Microcystis aeruginosa showed different copper sensitivity. Pour response typcs can be distinguished: 1 . rapid biomass loss after copper upplication but subsequent growth recovery; 2. fluctuations of growth but no loss of biomass at snblettial concentrations; 3. continuous recovery of growth rates after initially affected growth; 4. growth inhibition (dormancy) and recovery after inoculation into a copper-free medium.
Specics response to copper application within a phytoplankton sample agrees with pure culture
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