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ACCUMULATION OF 137Cs BY AEDES AEGYPTI LARVAE AND THE EFFECT OF POTASSIUM CONCENTRATION

Published online by Cambridge University Press:  31 May 2012

J. E. Guthrie  and
A. Z. Burzynski
J. E. Guthrie
Affiliation:
Environmental Control, Health and Safety Division, Whiteshell Nuclear Research Establishment, Atomic Energy of Canada Limited, Pinawa, Manitoba
A. Z. Burzynski
Affiliation:
Environmental Control, Health and Safety Division, Whiteshell Nuclear Research Establishment, Atomic Energy of Canada Limited, Pinawa, Manitoba
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Abstract

Radiocesium accumulation by Aedes aegypti larvae was greater at 25 °C, than at 20 °C. The activity density (c.p.m./mg dry wt.) of the adults was the same for both sexes, as was the nuclide’s elimination rate. The amount of 137Cs accumulated by the larval instars was inversely proportional to the concentration of potassium in the rearing medium, the suppression of 137Cs uptake being greater at 25 °C than at 20 °C. The possibility that larvae may accumulate 137Cs via the anal papillae and the gut, is briefly discussed.

Type
Articles
Information
The Canadian Entomologist , Volume 104 , Issue 3 , March 1972 , pp. 411 - 416
Copyright
Copyright © Entomological Society of Canada 1972

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