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Incubation of fertilized eggs in water containing 0.001-0.05 ppm of cadmium resulted in decreased swelling of the eggs, extended development time (delayed hatching) and reduced survival of embryos compared with the control. The proportion of normal, live hatched fry also was reduced in Cd 2+ solutions (8-35%) with respect to the control (86-88%). Acute toxicity tests revealed high individual...