OFFICIAL USE ONLY IIT. B. GROSS ACTIVITY Marine Organisms and Birds Graph Three indicates the general level of activity in fish at Rongelap Atoll and the decline of activity with time. 2 Tables Seven and Eight report the results of NRDL analysis for the February 1955 survey. 1956 surveys! 3 Tables Nine and Ten are for the February Tables Eleven and Twelve show the analyses by HASL.7? 6 The data show a significant higher concentration of gross activity in the livers of fish and in the crustacean muscles. Tables Eight (a) and Ten (a) show the gross activity in birds 3, 4 and fowls. me OFFICIAL USE ONLY