-4Consumption of the cistern water would result in lower 10, 30, 50 and 70 year integral doses than those computed for the consumption of Bikini cistern water in UCRL-51879, Part 5. The average concentrations in the water at FWR 4 will result in a slightly lower dose from 137Cs and 233+240Pu and a higher 2°Sr dose than computed for consumption of Bikini Island cistern water in UCRL-51879 Part 5. A number of the reef fish, mullet, were collected for radionuclide analysis from six different islands of Bikini Atoll, including Eneu, during 1977. Concentrations of specific radionuclides have been determined in the fish flesh, bones, skin, viscera, reproductive organs, gills and stomach ’ contents. The radionuclide concentrations are used to compute the radiological exposure to individuals from ingestion of marine foods. Mullet from Bikini have higher !37Cs levels associated with muscle tissue than average values found for Enewetak Atoll] fish. The mean ®°Co levels in muscle tissue of fish from both Atolls is similar and the highest concentrations are associated with reproductive organs. Plutonium concentrations in mullet from Bikini differ from those at Enewetak but. the average concentration factor for plutonium in fish muscle is similar at both Atolls. The concentrations of specific radionuclides in mullet tissue vary greatly from island to island within the Atoll and the radionuclide concentrations in the fish caught off Eneu fal] between the lowest and highest values detected in mullet at Bikini Atoll]. at Bikini is in progress. wee Updated doses from consumption. of marine foods Ul Ladin for Le. KK. Kip Ces56~ William L. Robison ’ Environmental Sciences Division lA CL Victor E. hostkia Environmental Sciences Division WLR: VEN: jre eum 5010149