~7From at least six (6) stations on the rim of the atoll, collections of marine forms from the intertidal and Shallow reef areas should be obtained for analysis of their radioisotope content. These collections should include the following: a. Resident fishes with various feeding habits. b. Invertebrates representative of the area, such as clams, coral, snaile, and crustaceans. c. Aquatic plants in the intertidal and shallow water areas. Plankton samples should be taken from a grid of stations about the lagoon. Plankton samples from the surface, thermocline, and near the bottom are needed to evaluate the role planktonic forms play in the translocation of radioactive materials. Water samples from the same locations where plankton samples are obtained should be taken to establish the radiation level of the sea water. Dredged samples from the lagoon bottom should be obtained for evaluation of the bottom sediment and of the forms of life living in the deeper parts of the lagoon. A careful survey of the terrestrial fauna and flora should be made to evaluate any changes that have