Figure 4. Effect of mine (MS) and synthetic (SS) seepage on 3 brood reproduction of Moinodaphnia macleayi.

Results are normalized to the percent of control response, and are expressed as mean ± standard error (n = 10 per tested concentration). Mine seepage toxicity data from Harford et al. [8] are also plotted. Mean ± standard error (n = 10) control offspring per adult and percent adult survival for the present study were as follows: MS–20±2.4, 80% survival; SS–34±2.3, 90% survival.