land area and physical parameters of the environment, especially the climate, soil, and ground water. The shrubs and trees, man, birds, rats, and land crabs are among the more conspicuous elements of the terrestrial biota, whereas climatic events, the soils, and the availability of ground water are the most important physical pomponents of the ecosystem. Major Descriptors: *ENIWETOK -- TERRESTRIAL ECOSYSTEMS Descriptors: BASELINE ECOLOGY; BIRDS; CLIMATES; CRABS; GROUND WATER; MAN; RATS; SHRUBS; SOILS; TREES ‘ Broader Terms: ANIMALS; AQUATIC ORGANISMS; ARTHROPODS; CRUSTACEANS; DECAPODS; ECOLOGY; ECOSYSTEMS; HYDROGEN COMPOUNDS; INVERTEBRATES; ISLANDS; MAMMALS; MARSHALL ISLANDS; MICRONESIA; OCEANIA; OXYGEN COMPOUNDS; PLANTS; PRIMATES; RODENTS; VERTEBRATES; WATER Subject Categories: 510500* Use Studies -- (-1989) -- Environment, Terrestrial -- Site Resource & 10/5/427 (Item 127 from file: 103) 02200452 ERA-13-045739; EDB-88-143190 Title: Trophic relationships in Enewetak Atoll Author(s): Burch, Marshall, B.L.; Affiliation: Univ. N.; Gerber, Helfrich, of Rhode P. R.P.; (eds.) Island, Devaney, Kingston D.M.; Reese, E.S.; (USA) Title: The natural history of Enewetak Atoll: Volume 1, The ecosystem: Environments, Corporate Source: biotas, and processes Hawaii Univ. at Manoa, Scientific and Technical Information, Publication Date: 1987 p 181-186 Report Number(s): DOE/EV/00703-T1-Vol.1 Order Number: DE87006110 Document Type: Analytic of a Report Language: English Journal Announcement: EDB8808 Availability: NTIS, PC All/MF AOl; Subfile: ERA Honolulu Oak Ridge, 1. (Energy Research Abstracts). Country of Origin: United States JMT (USA) TN USDOE Office of (DOE contractor) Country of Publication: United States Abstract: Some of the biologists who were attracted to Enewetak Atoll after the marine research laboratory opened have been studying species that are typical of reef environs and plentiful in this setting. Some have been interested in ecological features, particularly those of the well-developed windward reefs; and some, who have focused on the reef areas as an ecological subsystem, have been interested in the processes of the atoll as a whole. They start by noting three contrasting environments in this large, but typical, atoll. First, there are the coral reefs and knolls, the former almost completely enclosing the atoll, the latter scattered through the lagoon and numbering over 2000. Then there are the open waters of the lagoon. lagoon benthic environment Finally, there “is the (other than the coral knolls). In a real sense, and in comparison with the rest, the reefs and knolls are very productive, even though the oceanic waters surrounding the atoll are low in nutrients and organic food sources. Major Descriptors: *ENIWETOK -- BASELINE ECOLOGY Descriptors: BENTHOS; CORALS; ECOSYSTEMS; NUTRIENTS; Broader Terms: AQUATIC ORGANISMS; CNIDARIA; ECOLOGY; ISLANDS; MICRONESIA; OCEANIA 520500 (-1989) -- Environment, -- Environment, Aquatic -- Site Resource & Use Studies -- 10/5/428 02200451 (Item 128 from file: 103) ERA-13-045738; EDB-88-143189 Author(s): Marsh, Title: Terrestrial -- Site Resource & Reef processes: Helfrich, P. J.A. (eds.) energy and materials flux Jr.; Devaney, mre 2. fh ML D.M.; Reese, E.S.; Burch, B.L.; 9003742 Subject Categories: 510500* Use Studies -- (-1989) SITE CHARACTERIZATION ISLANDS; MARSHALL