Table 4.11-— RADIOACTIVITY OF FISH FROM ALL STATIONS COMPARED BY FEEDING HABITS* Preshot Common name Postshot n Range AY. n Range Av. Damael Surgeon Butterfly Parrot Blenny 16 8 6 4 6 =0.024-1.5 0.024-0.11 0.021~0.35 0.067-2.3 0.013-0.085 0.30 0.056 0.13 0.70 0.16 24 8 6 il 3 0.22 —800 0.31-—1100 0.27 ~—570 0.091 —340 0.042 —367 Brotulid Mullet Puffer Filefish 5 i 0-0.57 0.022 0.11 0.022 1 2.8 All omnivores 46 0-2.3 0.22 57 0.042~—1100 Carnivores: Grouper Squirrel Wrasse Goatfish Eel 7 1 11 8 3 0.017-0.064 0.035-—0.14 0.017—0.33 0.031 -—0.69 0.022 —0.032 0.039 0.120 0.070 0.16 0.029 8 11 29 4 4 0.32 -22 0.14—24 0.17-79 0.14-—7.6 0.11-61 6.8 11 30 2.3 46 Goby Cardinal Snapper HRalfbeak Jack 4 7 2 1 1 0.079 —0.130 0.004-0.450 0.026--0.066 0.073 0.041 0.092 0.082 0.046 0.073 0.041 q 5 3 1 2 0.22 —98 0.10-23 2.0—12 1.3 0.17 —0.86 56 10 5.5 1.3 0.52 Smelt Flatfish Reeffish 1 1 0.044 0.013 0.044 0.018 Omnivores: All carnivores 51 Omnivores and 97 0.004 -0.69 0-2.3 0.081 0.15 3 1 5 11-160 220 13-17 300 150 120 62 130 2.8 60 220 190 47 79 0.10-—98 24 136 0.042 -1100 92 carnivores * Measured in disintegrations per minute per gram (x 1000), wet sample. Generally, in both preshot and postshot fish, the greatest amount of activity was found in the gut, with liver, skin, bone, and muscle having lesser amounts in descending order of magnitude. Exceptions to this sequence were most numerous in skin and bone counts, in which the disintegration rates were about the same. Omnivores usually had slightly more activity in the bone than in the skin, whereas the reverse was generally true in the carnivores. Other exceptions occurred in moatof the fish at Japtan and in the preshot samples from Igurin, where the activity in the livers was usually lower than in other tissues, whereas muscle radioactivity was comparatively high in proportion to other tissues and when compared with other stations. Counts in skin and bone averaged about twice the counts in muscle in preshot omnivores and carnivores. In postshct omnivores the skin and bone counts were about five times those