21 01~ +-he 1969 Altholugh none the X–ray trations lected cular 63 emitter Ni, this or 1970 radionucliile of 80 d/in/g dry weight in 1967 (Beasley interest the clam In addition, and is therefore Another of approximately among This rad.ionuclide has radionuclides was of the ‘nepa’cop.]ncreas of spiny (Fig. 4). trator Tne spiny of silver another lobster isotopes potentially a half–life of 92 years. from Ni. 1970) . spectrum in 1969 is a known 1963) . 63 first ‘ and Held, collected t a half-life the gamma-ray hepctopancreas 60C0 of for the (Beasley lobsters (Seymour, as it does Ni, identified detected col– is of parti- 63 at Bikini first sediment 10.!3m Ag, with been in concen– for the presence radionuclide, 125 years, time organism for Nickel–63 1969). it has analyzed found Crater accumulated an indicator long-lived the since kidney was in Bravo and Held, as a tracer s:’mples were Thus , 108m with concen– Ag is useful long–lived tracer, its indicator water is present at low concentrations; organism. Tritiurn in well maximumL value found at Nani 1., whereas was 2 pCi/ml, taken Bikini in 1970 in 1969 was at Bikini T. U. and Eneu or 4300 Islands 600 T. L“. (Table irom well-points 4 and These and cistern values 5 and fall within 15) . from the at Eneu tritium units, the concentration or approximately and from the well than 400 14 pCi/ml, the Samples cistern all contained the range at less of tritium