Contents of radionuclides and heavy metals in fish roe of commercial fish of the Zaporizhya reservoir

Abstract

Comprehensive radiation-toxicological studies of fish roe of some commercial fish of the Zaporizhya Reser-voir were conducted. It was found that the greatest number of 137Cs (4,5 Bq/kg) and 90Sr (3,2 Bq/kg) was accumu-lated by fish roe of perch. Heavy metals (cadmium, copper, zinc and lead), and natural radionuclides 226Ra and 232Th were accumulated to a greater amount of bream fish roe.

Keywords

• radionuclides
• heavy metals
• fish
• fish roe
• the Zaporizhya Reservoir