High Concentrations of Transuranics and Natural Radioactive Elements In the Branchial Hearts of the Cephalopod Octopus vulgaris

Abstract

Data are reported which show elevated levels of plutonium and americium in the branchial hearts of the common cephalopod Octopus vulgaris. These levels were verified in both a laboratory experiment and in environmental samples. At the same time data for certain naturally-occurring radioactive isotopes of thorium, polonium and lead are given for comparison. Attention is d ~r e c t e d to the potential of these small organs as monitors of transuranics and, probably, certain other elements in the marine environment.