Biokinetics of Radiocbalt in the Asterioid Asterias rubens (Echinodermata): Sea Water and Food Exposures

摘要

Uptake and loss of cobalt-57 were investigated in the starfish Asterias rubens, in order to assess its value as a sentinel organism for nearshore radionuclide contamina- tion. Whole-body uptake from sea water was linear over a 32-day exposure period and reached wet weight concen- tration factor (CF) of 23±5. Bioaccumulation of ~57Co was dependent upon body compartment, the aboral part of the body wall concentrating cobalt to the greatest degree (wet weight CF:77±16).