A Dual-Labelling Technique to Measure the Relative Assimilation Efficiencies of Invertebrates Taking up Trace Metals from Food

1 January 1990

journal article
research article
Published by JSTOR in Functional Ecology

Vol. 4 (5) , 711-717
https://doi.org/10.2307/2389740

Abstract

This paper describes a new dual-labelling technique to measure the relative assimilation efficiency of invertebrates taking up the trace metal zinc from food. The technique has the potential to be extended to other metals. The method relies on the comparison of the ratios in the food and faeces of a non-assimilated metal isotope (60Co) to a metal isotope with the potential to be assimilated (65Zn).

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