[Accumulation and release of technetium in marine organisms: (1) Palaemon elegans]

The prawn Palaemon elegans, when exposed to seawater containing 95mTc0-4, accumulates technetium to a low extent (concentration factor less than 10). Release occurs following biphasic kinetics, most of the radioactivity being eliminated at a fast rate. Biological half-lives have been calculated for water temperatures of 10 degrees and 20 degrees C.