Document Type: Journal Article Language: English Journal Announcement: EDB7607 Subfile: INS (US Atomindex input); (Technical Information Center). ERA (Energy Research Abstracts); TIC Country of Origin: United States : Abstract: X radiography and autoradiography of thin vertical sections were used to estimate the growth rate of a specimen of Favites virens from Bikini Lagoon. Discrete bands of radioactivity were identifiable with specific nuclear test series. The coral growth rate of 8.0 mm year/sup -1/ determined by autoradiography is in good agreement with the rate of 8.1 +- 2.2 mm year/sup -1/ derived from the ‘’seasonal’’ alternating light and dark bands on x radiographs. With these bands as growth rate indicators, the coral was sectioned into yearly increments and analyzed by low-level, nondestructive gamma spectrometry, radiochemical techniques, and mass spectrometry to reconstruct the variations in the concentration of transuranics and other radionuclides in the marine environment at Bikini since 1954. From the concentration data retained in this indicator species, the exchange rate of radionuclides between the lagoon and the open ocean is computed to be longer than exchange rates based on physical circulation data. There is no constant ratio of plutonium isotopes in the coral growth sections, suggesting that the redistributions of the several plutonium isotopes in the environment may be governed by different biogeochemical processes. Increased levels of /sup 210/Po (/sup 210/Pb) were found in test-year growth sections, contradicting previous arguments that no /sup 210/Pb has resulted from weapons testing. Major Descriptors: (auth); *CORALS -- ANIMAL GROWTH Descriptors: AUTORADIOGRAPHY; BIKINI; BIOLOGICAL INDICATORS; LEAD 210; NUCLEAR EXPLOSIONS; PLUTONIUM ISOTOPES; POLONIUM 210; QUANTITY RATIO; RADIOISOTOPES; SHAS; TRANSURANIUM ELEMENTS; X-RAY RADIOGRAPHY Broader Terms: ACTINIDE ISOTOPES; ALPHA DECAY RADIOISOTOPES; ANIMALS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CNIDARIA; DAYS LIVING RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; EXPLOSIONS; GROWTH; HEAVY NUCLEI; INDUSTRIAL RADIOGRAPHY; INVERTEBRATES; ISLANDS; ISOTOPES; LEAD ISOTOPES; MARSHALL ISLANDS; MATERIALS TESTING; NONDESTRUCTIVE TESTING; NUCLEI; POLONIUM ISOTOPES; RADIOISOTOPES; SURFACE WATERS; TESTING; YEARS LIVING RADIOISOTOPES Subject Categories: 520100* -- Environment, Aquatic -- Basic Studies -(-1989) 560172 -- Radiation Effects -- Nuclide Kinetics & Toxicology -(-1987) -- Earth Sciences C21 -- Tissue Distribution, Radionuclides Metabolism, Toxicology & Removal of 10/5/998 (Item 698 from file: 103) 00106419 EDB-76-043474 Title: Distribution of the Hawaiian ghost crab, Fellows, D.P. ‘ Author(s): Affiliation: Univ. of Hawaii, Honolulu Source: Pac. Sci. (United States) v 29:3. Publication Date: 1975 p 257-258 Document Type: Journal Article Language: English Journal Announcement: EDB7607 Subfile: TIC (Technical ~ Ocypode laevis Dana 10 -- Coden: PASCA 900! \ Animals INIS Subject Categories: B30* Information Center). Country of Origin: United States Abstract: The presence of a small breeding population of Ocypode laevis at Enewetak Atoll, Marshall Islands, is reported, and morphological and behavioral comparisons are made with the Hawaiian O. laevis. Previous distribution records for the species are discussed and corrected.; Major Descriptors: *CRUSTACEANS -- GENETIC VARIABILITY; *ENIWETOK -ECOLOGY Descriptors: MARSHALL ISLANDS; POPULATION DYNAMICS; RANGE; REPRODUCTION Broader Terms: ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; BIOLOGICAL