… the combined effects of water hardness and alkalinity on the … on the hardness and alkalinity
of the used media for culture. … levels of hardness and alkalinity, the growth, reproduction and …

… 20% effect concentrations (EC20s) for reproduction (Table 2). … Test organisms were obtained
from a culture (genetic strain … from the high-alkalinity waters. In the first round of chronic …

… for supplying the initial culture of Ceriodaphnia dubia and ~ … Hardness, alkalinity, and
conductivity of the test water were … Survival and reproduction of Ceriodaphnia dubia exposed to a …

… In this study, we evaluated the reproduction and survival of C. … obtained from ERL-D cultures
maintained in Lake Superior water (LSW). The hardness and alkalinity values for the LSW …

… with 20 mL of culture medium. Increased fecundity of C . … , total hardness by titration with
EDTA, total alkalinity by sulfuric … day reproduction of Ceriodaphnia in channels plotted by test …

… magna clone as well as for Ceriodaphnia dubia. Finally, the … into the effects of elevated pH
and alkalinity levels, is needed … and at 5.0 mM the net reproduction of control organisms was …

… Culture water and dilution water for the Phase I and Phase II … the alkalinity from 11 to 35
mg l −1 to test whether the low … we determined to effect daphnid reproduction and that SCN − …

… dubia, reproductive indices were more sensitke indicators of … a reconstituted water having
hardness and alkalinity of 90 and … It has been shown that, when neither food nor culture water …

… subcapitata, the cladoceran Ceriodaphnia dubia, and the … hardness water that was prepared
with a balanced alkalinity (… 25 mL of water/food ration) with reproduction being tracked to …

… Effects of various metals on survival, growth, reproduction … on Daphnia magna and
Ceriodaphnia dubia/affinis tested at two … The effects of hardness, alkalinity and pH of test water on …