It can be noted that unlike bred Atlantic salmon, the wild Pacific chum and pink salmon caught in the Kuril waters have high concentrations of lead. While the lead content in the bred salmon fillets from both the Atlantic and Eastern Pacific (Canada) ranges between 0.02 and 0.15 ppm, it increases in the muscles of Kuril Western Pacific salmon from 0.45 ppm in male pink salmon to 0.78 ppm in female chum.