We examined whether the sensitivity of Ceriodaphnia dubia to copper toxicity was
influenced by the hardness of the water in which they were reared or in which they were …

The effects of physicochemical conditions, such as pH, water hardness, flow rates and
natural organic substances on the sensitivity of Ceriodaphnia dubia to the toxic effects of …

The effects of diet, water hardness, and population source on acute toxicity, and diet and
water hardness on chronic toxicity of copper (Cu) to Ceriodaphnia dubia were evaluated. A …

The purpose of this study was to evaluate the effects of four diets on the results of seven-day
Ceriodaphnia dubia toxicity tests. Survival and reproduction were used as indices to detect …

This study determined the influence of key water chemistry parameters (pH, alkalinity,
dissolved organic carbon [DOC], and hardness) on the aqueous speciation of copper and …

The majority of metal toxicity data available for freshwater organisms have been generated
in laboratory water at pH> 6.5 and hardness> 50 mg/L as CaCO3. Extrapolation of these …

Due to the increased popularity of zooplankton toxicity tests, it is important to investigate
potential confounding factors. Though zooplankton food has been studied extensively to …

Chlamydomonas reinhardtii and Ceriodaphnia dubia were used to evaluate effects of
seasonal changes in the water chemistry (DOC, alkalinity, hardness) of a freshwater pond …

Acute and chronic bioassays were conducted to determine the effects of copper, lead, and
zinc mixtures on Ceriodaphnia dubia and Daphnia carinata. Copper, lead, and zinc …

The mitigating effect of increasing hardness on metal toxicity is reflected in water quality
criteria in the United States over the range of 25–400 mgl− 1 (as CaCO3). However, waters …