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The Effects Of Calcium Concentration And Food Levels On Daphnia, Fawn Goodberry
The Effects Of Calcium Concentration And Food Levels On Daphnia, Fawn Goodberry
Biology Theses
Many physiological processes of Daphnia are negatively affected at low calcium concentrations. The concentration of calcium within lake water influences how Daphnia populations will survive and reproduce in natural environments. An experiment was designed to test the effects of calcium concentration and food level on the growth and reproduction of a Daphnia hybrid. Daphnia pulex x Daphnia pulicaria were reared in a soft water medium at three calcium concentrations (2.5mg/L, 1.0mg/L, 0.50mg/L) and high and low food levels (5.6 x 105 and 5.6 x 104 cells of the algae Ankistrodesmus sp.) in a 2 x 3 factorial …