Long-term researches of specific activity of 137Cs at a pike perch (Lucioperca lucioperca L. ) from Kanevskoe reservoir and cooling-pond of ChNPP are summed up. Distribution of 137Cs on organs and tissues of a pike perch occurred more slowly. than at the majority of other species of fishes. https://midwaysportes.shop/product-category/lacrosse-balls/