Descriptors: ACETYLENE; BIOSYNTHESIS; CORALS; ENIWETOK; METABOLISM; NITROGEN; NITROGEN COMPOUNDS; NUTRIENTS; PLANKTON; PRODUCTIVITY Broader Terms: ALKYNES; ANIMALS; AQUATIC ORGANISMS; BIOMASS; CNIDARIA; CRYOGENIC FLUIDS; ELEMENTS; ENERGY SOURCES; FLUIDS; HYDROCARBONS; INVERTEBRATES; ISLANDS; MARSHALL ISLANDS; NONMETALS; ORGANIC COMPOUNDS; PLANTS; RENEWABLE ENERGY SOURCES; SYNTHESIS ‘ Subject Categories: 520200* -- Environment, Monitoring & Transport -- (-1989) 550500 -- Metabolism 550700 10/5/991 00138685 Author(s): Aquatic -- Chemicals -- Microbiology ’ (Item 691 from file: 103) ERA-01-026481; EDB-76-076543 Gold, K. Title: Accumulation and transport of minerals by marine protozoa. Progress report, September 1, 1975--August 31, 1976 Corporate Source: New York Aquarium, Marine Sciences Publication Date: May 1976 Brooklyn (USA). Osborn Labs. of p 9 Report Number(s): C00-3390-27 Contract Number (DOE): E(11-1)-3390 Document Type: Report Language: English Journal Announcement: EDB7610 Availability: Dep. NTIS $3.50. Subfile: Center). ERA (Energy Research Abstracts); TIC (Technical Information Country of Origin: United States Country of Publication: United States Abstract: The agglutinated Tintinnida have the unique ability among ciliates to incorporate particles into their loricae that are in the same size range as silts. The ecological significance of this form of Mineral accumulation lies in biological concentration and cycling of radionuclides, metals, or other toxic substances from the sediments or water to the biota. Loricae have been characterized on the basis of the particulate matter accumulated: predominantly non-biogenic origin; predominantly biogenic origin, especially coccoliths; a combination of non-biogenic and biogenic materials, the latter including a variety of materials, e.g., fragments of protozoan shells, coccoliths, and diatom frustules; hyaline or clear mineral-free structures, generally without adhering particles. Electron probe analysis was used to identify the chemical constituents of the principal non-biogenic grains on specimens from the eastern coast of the U. S. The predominant mineral constituent was silicon, probably in the form of quartz. The particles utilized by a benthic foraminiferan, an amoeba from the same region, were also the same type and in the same size range. In contrast to the accumulation of Si-containing particles, the principal mineral found in the irregularly-shaped grains on specimens from Eniwetok Atoll wa’ calcium probably as calcium carbonate.; Major Descriptors: *CALCIUM -- BIOLOGICAL ACCUMULATION; *CALCIUM -DISTRIBUTION; *MINERALS -- BIOLOGICAL ACCUMULATION; *MINERALS -DISTRIBUTION; *PROTOZOA -- SHELLS; *SHELLS -- CHEMICAL COMPOSITION; *SILICON -- BIOLOGICAL ACCUMULATION; *SILICON -- DISTRIBUTION Descriptors: BENTHOS; ELECTRON PROBES; SILT Broader Terms: ALKALINE EARTH METALS; ANIMALS; AQUATIC ORGANISMS; INVERTEBRATES; METALS; MICROORGANISMS; PROBES; SEMIMETALS Subject Categories: (-1989) 520100* -- Environment, Aquatic -- Basic Studies -- 10/5/992 (Item 692 from file: 103) 00129900 INS-04-017188; ERA-01-024725; EDB-76-067479 Author(s): Gudiksen, P.H.; Crites, T.R.; Robison, W.L. Title: External dose estimates for future Bikini Atoll inhabitants Radiation) Corporate Lab. Source: California Univ., ELEMENTS; Livermore (USA). (Gamma Lawrence Livermore