Abstract
The toxicity of cadmium and zinc mixtures at concentrations ranging from 0.1 to 10,000 μg/L was investigated against the survival of the free-living cercarial stage of the parasitic fluke Diplostomum spathaceum. Cercariae were exposed to metal mixtures of equal concentration, metal mixtures of unequal concentration, and low-dose pretreatment followed by high-dose exposure mixtures. Under all exposures cercarial survival was increased compared to that achieved with single metals. At exposures with metal mixture of equal concentration in the range 0.1–100 μg/L survival was increased compared to that achieved by controls. The mechanism of metal toxicity and their effects on cercarial survival are discussed.
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Received: 17 November 2001/Accepted: 4 February 2002
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Morley, N., Crane, M. & Lewis, J. Toxicity of Cadmium and Zinc Mixtures to Diplostomum spathaceum (Trematoda: Diplostomidae) Cercarial Survival. Arch. Environ. Contam. Toxicol. 43, 28–33 (2002). https://doi.org/10.1007/s00244-002-1244-x
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DOI: https://doi.org/10.1007/s00244-002-1244-x