When grown alone,the rotifers showed better population
growth on a diet of 75% Chlorella and 25% Microcystis than either
on 100% Chlorella or Microcystis. The rate of population increase
varied from to 0.1670.01 to 0.5770.03 d1 depending on diet
composition and rotifer species involved.Regardless of the
proportion of Microcystis, B. havanaensis had slightly (about16%)
higher r than B. calyciflorus.
For both B. calyciflorus and B.
havanaensis, lowest growth rates were obtained when raised only
on Microcystis. For B. calyciflorus or B. havanaensis post hoc analysis
revealed that r obtained with diets containing 75% or 100% M.
aeruginosa differed significantly (Fig. 3).