Table VII. Radioisotopes in Fish Caught by Japanese Fishermen, 1954-1957) uuc/g (wet tissue) Fish Tissue Date Locality Fe55 Big eye tuna Muscle 6/56 So. Pacific 21,40 Red muscle” moms Red muscle 10/56 " " Liver mM a i 5000. 500. woos Liver 6/56 no 5430. 36. som Kidney mM " 40000. 531. " Spleen mooN " Kidney 6-7/54 " " " Muscle oN " " Liver 6/56 Muscle 6/57 Carp " " 1200. " 3800. Cdil3m sg 137 3.1 700. 120. 12. 60.6 27700. " " sr90 1.8 mos Yellow fin " " zn85 " Maebashi 33. 1000. .0014 40. .017