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Response of organisms to total Fe. a Survival of mountain white fish was a less sensitive endpoint than growth measured in individual fry mass. b Reduced survival and mass of boreal toad tadpoles were observed at 3831 μg/L total iron. c Population size of Lumbriculus worms was reduced in the 1145 μg/L treatment levels when compared to controls. All experimental units started at 16 individuals. Asterisks denote treatment means significantly less than control (p < 0.05)
