The relation of periphytic and planktonic algal growth in an estuary to hydrographic factors
Eugene Brummer Welch, Richard M. Emery, Robert I. Matsuda, William A. Dawson
1972, Limnology and Oceanography (17) 731-737
No abstract available....
Destruction of the ecosystem in the Great Lakes and possibilities for its reconstruction
Stanford H. Smith
Remedios W. Moore, editor(s)
1972, Book chapter, Progress in fishery and food science
This paper is a review of the sequence of events within the Great Lakes and their drainage to provide a basis for interpreting probable cause-and-effect relations between events of settlement and changes in the ecosystem of the Great Lakes. Possibilities of restoration of the lakes are discussed. A plan to...
Laboratory animal medical subject headings
C.M. Lang, B.C. Bullock, J.S. Cass, L.A. Griner, C.W. McPherson, S. F. Snieszko, M. Terry
1972, Book
No abstract available at this time...
Duck hepatitis virus Interactions with DDT and dieldrin in adult mallards
Milton Friend, D.O. Trainer
1972, Bulletin of Environmental Contamination and Toxicology (7) 202-206
There has been considerable speculation regarding possible imteractlons within biological systems between synthetic environmental pollutants and infectious disease agents (1-11). This type of interaction has been studied in our laboratory using the mallard, Anas platyrhynchos, as a test species (5,6). Since adult ducks are refractory to the overt manifestations of...
Biological studies on the hemoflagellates Cryptobia cataractae and Cryptobia salmositica
R.E. Putz
1972, Technical Paper 63
No abstract available at this time...
Channel catfish virus disease: Revised
J.A. Plumb
1972, Fish Disease Leaflet 18
No abstract available at this time...
Ion-product constant of water to 350°
J.R. Fisher, H.L. Barnes
1972, Journal of Physical Chemistry (76) 90-99
No abstract available....
Reconnaissance geologic map of the Cedaredge area, Delta County, Colorado
W. J. Hail Jr.
1972, IMAP 697
No abstract available....
Annual compilation and analysis of hydrologic data for urban studies in the Austin, Texas, metropolitan area, 1970
J. K. VanZandt
1972, Report
No abstract available. ...
Seasonal population characteristics of the opossum shrimp, Mysis relicta, in southeastern Lake Michigan, 1970-71
James B. Reynolds, G.M. DeGraeve
1972, Proceedings of the 15th Conference on Great Lakes Research (15) 117-131
This study of depth distribution, abundance, growth, reproduction and standing crop of the opossum shrimp, Mysis relicta, in southeastern Lake Michigan was based on monthly samples collected from August 1970 through July 1971 (except February and March). Population density was usually low at 10-20 fathoms, moderate at 25-30 fathoms and...
Survey for infectious hematopoietic necrosis (IHN) virus in Washington salmon
Donald F. Amend, James W. Wood
1972, Progressive Fish-Culturist (34) 143-147
A virus disease of juvenile sockeye salmon (Oncorhynchus nerka) has been a problem in Washington hatcheries since first reported by Rucker [9] in 1953. Presumably, the same disease has occurred in Oregon, and it is now referred to as the Oregon, and it is now referred to as the Oregon...
Age, growth, reproduction, and food of the burbot, Lota lota (Linnaeus), in southwestern Lake Superior
Merryll M. Bailey
1972, Transactions of the American Fisheries Society (101) 667-674
This study was based on 1,285 burbot (Lota lota) collected in three areas in southwestern Lake Superior in 1966-69. Age was determined from otoliths, the marginal zones of which were opaque from December to May and translucent from June to November. Average lengths of the age groups and annual increments...
A recent record of the meadow jumping mouse, Zapus hudsonius, in subarctic Canada
Gary Krapu, David L. Traugher
1972, American Midland Naturalist (88) 467-467
The occurrence of Zapus hudsonius is confirmed for the area lying N of the Mackenzie River and Great Slave Lake....
Water-resources reconnaissance of Anaktuvuk Pass, Alaska
Charles E. Sloan
1972, Open-File Report 72-348
A hydrologic reconnaissance was made of Anaktuvuk pass in the central Brooks Range during the summer of 1971 to help develop a water supply for the village school. Winter icings and summer flow conditions in Contact Creek both indicate that ground water is present beneath the creek bed. A well-site...
Sediment transport and deposition, Walnut and Pacheco Creeks, Contra Costa County, California, August 1965-April 1970
George Porterfield
1972, Open-File Report 72-302
Average annual sediment discharge in Pacheco Creek basin, Contra Costa County, Calif., was larger during August 1965-April 1970 than the historical annual sediment discharge (1909-62) by a factor of about 1.3. This increas in sediment discharge is attributed primarily to an increased frequency of peak streamflows and to a larger...
[Book review] Veterinary Clinical Pathology
L. N. Locke
1972, Journal of Wildlife Diseases (8) 108-108
No abstract available. ...
An adjustable radio-package for ducks
T.J. Dwyer
1972, Bird-Banding (43) 282-284
No abstract available....
Production and standing crop of Hexagenia (Ephemeroptera) in a large reservoir
P.L. Hudson, G.A. Swanson
1972, Studies in Natural Sciences (1) 1-42
Population dynamics of the mayflies, Hexagenia limbata (Serville) and Hexagenia bilineata (Say), were studied in Lewis and Clark Lake from 1962 to 1969. Nymphs that hatched in June and July emerged as adults in 13-14 months (titled 1-year cycle) and nymphs hatched in late August or September emerged in 22...
The martian atmosphere: Mariner 9 television experiment progress report
C.B. Leovy, G.A. Briggs, A.T. Young, B.A. Smith, James B. Pollack, E.N. Shipley, R.L. Wildey
1972, Icarus (17) 373-393
Atmospheric phenomena appearing in the Mariner 9 television pictures are discussed in detail. The surface of the planet was heavily obscured by a global dust storm during the first month in orbit. Brightness data during this period can be fitted by a semi-infinite...
Mass spectrometric analysis of organic compounds, water and volatile constituents in the atmosphere and surface of Mars: The Viking Mars Lander
Duwayne M. Anderson, K. Biemann, Leslie E. Orgel, John Oro, Tobias Owen, Garson P. Shulman, Priestley Toulmin III, H. C. Urey
1972, Icarus (16) 111-138
An experiment centering around a mass spectrometer is described, which is aimed at the identification of organic substances present in the top 10 cm of the surface of Mars and an analysis of the atmosphere for major and minor constituents as well as isotopic abundances. In addition, an indication of...
Silicate melt inclusions and glasses in lunar soil fragments from the Luna 16 core sample
E. Roedder, P.W. Weiblen
1972, Earth and Planetary Science Letters (13) 272-285
More than 2000 fragments were studied microscopically, and electron microprobe analyses were made of 39 selected areas, from a few square mm of polished surface, through 75- to 425-μm fragments of lunar soil from two samples of the Luna 16 core. The...
Imaging experiment: The Viking Mars orbiter
M. H. Carr, W.A. Baum, G.A. Briggs, H. Masursky, D.W. Wise, D. R. Montgomery
1972, Icarus (16) 17-33
The general objectives of the Imaging Experiment on the Viking Orbiter are to aid the selection of Viking Lander sites, to map and monitor the chosen sites during lander operations, to aid in the selection of future landing sites, and to extend our...
The geologic setting of the Luna 16 landing site
J.F. McCauley, D. H. Scott
1972, Earth and Planetary Science Letters (13) 225-232
The Luna 16 landing site is similar in its geologic setting to Apollos 11 and 12. All three sites are located on basaltic mare fill which occurs mostly within multi-ring basins formed by impact earlier in the moon's history. A regolith developed...
Prospects for earthquake prediction and control
J. H. Healy, W.H.K. Lee, L. C. Pakiser, C.B. Raleigh, M.D. Wood
1972, Tectonophysics (14) 319-332
The San Andreas fault is viewed, according to the concepts of seafloor spreading and plate tectonics, as a transform fault that separates the Pacific and North American plates and along which relative movements of 2 to 6 cm/year have been taking place. The resulting strain can be released by creep,...
Fluorination of 1,2,3-, 1,2,4-, and 1,3,5-trihalobenzenes with potassium fluoride in dimethyl sulfone
R.H. Shiley, D. R. Dickerson, G. C. Finger
1972, Journal of Fluorine Chemistry (2) 19-26
Three trifluorobenzenes were prepared by reaction of the corresponding trichlorobenzenes with potassium fluoride or pottassium fluoride-cesium fluoride mixtures in dimethyl sulfone. Molar yields were 12.8% for 1,2,3-, 8.3% for 1,2,4-, and 56.2% for 1,3,5-. Improved yields of the 1,2,3- (23.9%) and the 1,2,4-...
