Improved Methods for Measuring Radioactive Tracer Accumulation and Excretion by Microarthropods, with Applications for a Mite Species, Tyrophagus Longior (Acarina, Acaridae)

摘要

Radioisotope retention measurements of exp 85 Sr and exp 51 Cr in Tyrophagus longior (Gervais) (Acari: Acaridae) were fit to 2 and 1 component models. Biological half-life for the rapid component of both radioisotopes was about 10 hours, with assimilation of exp 85 Sr being 62%. The identification of exp 51 Cr turnover as gut clearance must remain tentative. An inexpensive disposable culture chamber for measuring radioisotope retention in microarthropods is described along with details of methodology. (ERA citation 05:034171)