• Medicine, Biology
  • Published in Pesticides monitoring journal 1979

DDT in northern pike (Esox lucius) from the Richelieu River, Québec, Canada, 1974-75.

  title={DDT in northern pike (Esox lucius) from the Richelieu River, Qu{\'e}bec, Canada, 1974-75.},
  author={Sylvie Boileau and Marc. Baril and J G Alary},
  journal={Pesticides monitoring journal},
  volume={13 3},
Concentrations of DDT, TDE, DDE, and sigma DDT were determined in homogenized whole fish samples of 129 northern pike (Esox lucius). These fish were netted between June 1974 and June 1975 in the first 10 km of the Richelieu River flowing in Canadian territory. Two years after the banning of DDT, sigma DDT levels ranged from 0.2 ppm fresh body weight in two-year-old specimens to 1.5 ppm in a six-year-old pike. Residues increased greatly with age, and significant seasonal variations in the sigma… CONTINUE READING