Publication Date: 1958 211-18 p. Publ: Atomic Energy Commission-Department of Defense Journal Announcement: NSA12 Availability: U. S. Government Printing Office Document Type: Book Analytic Language: English Data are summarized on the residual radioactive contamination ih the tissues of 88 fish and marine invertebrates collected from the various lagoons of the Marshall Islands 2 years after the thermonuclear explosion of March 1, 1984. (C.H.) Descriptors: ANIMALS; CONTAMINATION; FISH; MARSHALL ISLANDS; MEASURED VALUES; MICROORGANISMS; NUCLEAR EXPLOSIONS; RADIOACTIVITY; SEA; TESTING Subject Codes (NSA): BIOLOGY AND MEDICINE 10/5/233 (Item 233 from file: 087628 NSA-12-012201 109) RESIDUAL CONTAMINATION OF PLANTS, ANIMALS, SOIL, AND WATER OF THE MARSHALL ISLANDS TWO YEARS FOLLOWING OPERATION CASTLE FALLOUT. The Shorter-Term Biological Hazards of a Fallout Field Weiss, H.V.; Dunning, G.M.; Hilcken, J.A. eds. U. S. Naval Radiological Defense Lab., San Francisco Publication Date: 1958 205-10 p. Publ: Atomic Energy Commission-Department of Defense Journal Announcement: NSA12 Availability: U. S. Government Printing Office Document Type: Book Analytic Language: English A survey was made two years post-detonation to determine the persistence and fate of radioactive material in the biological systems and in the physical enviromnent of those Marshall Islands contaminated by fall-out from the March 1, 1954, thermonuclear weapon detonation. Specimens of land and marine animals, birds, vegetation, soil, and water were collected for analysis. Radioassays for gross beta and gamma activity were conducted, and in addition radiochemical determinations of individual fission products and induced activities were made. Data are tabulated. An evaluatlon is made of the potential hazard from the ingestion of contaminated materials. (C.H.) Descriptors: ANIMALS; BETA DETECTION; BIRDS; CONTAMINATION; ENVIRONMENT ; FALLOUT; FISSION PRODUCTS; GAMMA DETECTION; INTESTINE; MARSHALL ISLANDS; MEASURED VALUES; NUCLEAR EXPLOSIONS; PLANTS; RADIOACTIVITY; RADIOBIOLOGY; SEA; SOILS; TESTING; WATER Subject Codes (NSA): BIOLOGY AND MEDICINE 109) GENETIC STUDIES OF IRRADIATED NATURAL POPULATIONS OF DROSOPHILA. 1957 TESTS Stone, W.S.; Wilson, F.D. Univ. of Texas, Austin Ii. ™- Proc. Natl. Acad. Sci. U.S. vi 44. Publication Date: (1958) June 565-75 p. Journal Announcement: NSA12 Document Type: Journal Article Language: English BS>Genetic analyses were made of irradiated and control isolated populations of D. ananassae from the Pacific Proving Ground area, C3634 10/5/234 (Item 234 from file: 087558 NSA-12-012131 others of@ the Marshall Islands, and Ponape. These tests shows that the Bikini and Rongelap populations were severely damaged genetically by the direct radiations and fallout from the thermonuclear device exploded on March 1, 1954. The Rongerik atoll populations had recovered from fallout by August in 1955 -- a period roughly equivalent to 26 generations. The populations collected at Rongelap and Bikini had not recovered then, but the Rongelap population had recovered by 1956, in 40 or more generations. Because of the heavier irradiation on Bikini--including effects of the weapons tests in 1956--this population was still slightly below other Pacific Island populations even in 1957. The general relations and comparisons between these isolated island populations and other Drosophila-populations are