Identification of the toxic agent in metal-contaminated sediments from Manitouwadge Lake, Ontario, using toxicityaccumulation relationships in Hyalella azteca

@inproceedings{Borgmann1997IdentificationOT,
  title={Identification of the toxic agent in metal-contaminated sediments from Manitouwadge Lake, Ontario, using toxicityaccumulation relationships in Hyalella azteca},
  author={Uwe Borgmann and Warren P. Norwood},
  year={1997}
}
Toxicity of sediments from Manitouwadge Lake, Ontario, to Hyalella correlated closely with bioaccumulation of zinc but not copper. Bioaccumulation in 1-week exposures was sufficient to infer chronic zinc toxicity. Close similarity between toxicity-accumulation relationships from Manitouwadge Lake and those obtained from zinc-spiked Hamilton Harbour sediments indicate that toxicity is due to zinc itself and not some other chemical that correlates with zinc in sediments. Sediment concentrations… CONTINUE READING