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ELIMINATION RATE OF RADIOCESIUM BY AN AQUATIC HEMIPTERAN LETHOCERUS AMERICANUS*

Published online by Cambridge University Press:  31 May 2012

J. E. Guthrie  and
R. A. Brust
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Abstract

Radionuclides may be used as ecological tracers to study trophic–level relationships. To use cesium-137 to investigate the role of the giant water bug, Lethocerus americanus (Leidy), in the food-web of a small pond, it was necessary to measure the elimination rate of the nuclide. The experimental determination of the elimination rate of cesium-137 in fourth instar and adult water bugs, and the calculation of the fraction of ingested food assimilated is described.

Type
Research Article
Information
The Canadian Entomologist , Volume 101 , Issue 8 , August 1969 , pp. 856 - 861
Copyright
Copyright © Entomological Society of Canada 1969

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Footnotes

*

Presented at the Annual Meeting of the Entomological Society of Canada, 26–28 August 1968, Saskatoon.

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