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