Radiation risk of mortality and reduced lifespan of daphnids gamma-irradiated at low doses

«Radiation and Risk», 2011, vol. 20, no. 1, pp.34-40


Sarapultseva E.I. – Associated Professor, PhD, C. Sc., Biol. Obninsk Institute of Nuclear Power Engineering National Research Nuclear. University “MEPHI”. Contacts: Studgorodok-1, Obninsk, Kaluga region, 249040 Russia. Tel.: +7(48439) 9-60-42; e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .
Gorski A.I.1 – Lead. Researcher, C. Sc., Phys.-Math. Medical Radiological Research Center of the Russian Ministry of Health and Social Development, Obninsk.
Malina J.J. – PG student. Obninsk Institute of Nuclear Power Engineering National Research Nuclear University “MEPHI”.


The results of daily based observations for the crustaceans Daphnia magna populations, irradiated at doses of 0.01; 0.1 and 1.0 Gy have been presented. The tables of lifespan have been used for the analysis of the daphnids’ survival. The dynamics of the proportion of survivors after acute gama-irradiation and the duration of daphnids' live span have been compared. Irradiation at dose of 0.1 Gy and more resulted in significant increased risk of daphnids’ mortality and shorten of their lifespan.

Key words
Ionizing radiation, low doses, radiation risks, lifespan, Daphnia magna.


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