Table 1. Gross levels of beta radioactivity in reef fishes collected at Rongelap and Ailinginae Atolls, July 1957, expressed as uc/kg wet tissue* Collection date and Locality 7/11/57 Ailinginae Atoll Enibuk I. Common name Number of specimens Reef fish 32 Reef fish 51 Grouper (Plectropomus Muscle Bone .038 Liver Stomach content Whole fish .163 030 1 036 100 26 016 .022 .059 .926 oy .018 .020 .068 =&#.063 jeopardus) T/17/57 Ronge lap Atoll Rongelap I. 7/18/57 Rongelap Atoll Laatiouy god Kabelle I. Reef fish (carnivores) Reef fish (omnivores) Reef fish 73 Reef fish 11 Reef fish 36 Goatfish 14 .036 -727 -379 50 .016 .080 .038 (Mulloidichthys .028 .027 .102 .276 «125 O49 samoensis) Halfbeak (Hyporhamphus laticeps) *Ccounts were made during August 1957. ' =

Select target paragraph3