Virulence and persistence of rough and smooth forms of Aeromonas salmonicida inoculated into coho salmon (Oncorhynchus kisutch)
Douglas P. Anderson
1972, Journal of the Fisheries Research Board of Canada (29) 204-206
Virulent isolates of Aeromonas salmonicida showed a majority of smooth colonies, while the attenuated isolates displayed mostly rough colonies. A lesion occurred at the site of inoculation when one of the rough forms was inoculated into yearling coho salmon, but few mortalities were recorded even though the rough forms were readily recovered...
Virucidal activity of two Iodophors to salmonid viruses
Donald F. Amend, John P. Pietsch
1972, Journal of the Fisheries Research Board of Canada (29) 61-65
Wescodyne® and Betadine®, organic iodine complexes, were compared in vitro for virucidal activity against infectious hematopoietic necrosis (IHN), infectious pancreatic necrosis (IPN), and viral hemorrhagic septicemia (VHS) viruses. Both iodophors were about equally effective on all three viruses. Each iodophor completely destroyed IHN virus within 30 sec at 12 ppm iodine, and was...
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...
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...
Bedrock topography of the Connecticut River Valley near Greenfield, Massachusetts
Bruce P. Hansen
1972, Open-File Report 72-156
No abstract available....
Cloudburst floods in Utah, 1939-69
Elmer Butler, Ray E. Marsell
1972, Report
During 1939-69, 836 cloudburst floods were reported in Utah. The largest number was in 1965, when 88 floods were reported; 63 floods were reported in 1968, and 56 were reported in 1961. The smallest number of floods reported was three in 1944. In 1942, 1948, and 1950, six floods were...
Reconnaissance geologic map of the Solomon D-6 quadrangle, Seward Peninsula, Alaska
C.L. Sainsbury, Travis Hudson, Rodney Ewing, Thomas Richards
1972, Open-File Report 72-325
The Solomon D-6 15- by 30-minute quadrangle lies 20 miles northeast of Nome, Alaska, and adjoins on the east the Nome D-l quadrangle mapped by Hummel (1962b) and on the west the Solomon D-5 quadrangle mapped by Smith (1910).Placer gold has been produced from Iron Creek and many of its...
Water-quality data for the Flaming Gorge Reservoir area, Utah and Wyoming, 1969-72
E.L. Bolke, K.M. Waddell
1972, Utah Basic-Data Release 24
This report presents the basic data that were collected by the U.S. Geological Survey during a study of the chemical quality of water in Flaming Gorge Reservoir. An interpretive report will follow. The basic data were collected from the reservoir during six sampling runs between October 1970 and September 1972....
Paleomagnetism of Midway Atoll lavas and northward movement of the Pacific plate
S. Gromme, F.J. Vine
1972, Earth and Planetary Science Letters (17) 159-168
Two deep drill holes through the reef limestones of Midway Atoll penetrated 120 m and 19 m of basaltic lavas that were dated by the KAr method at 18 my. Inclinations of natural remanent magnetization have been measured...
Biological studies on the hemoflagellates Cryptobia cataractae and Cryptobia salmositica
R.E. Putz
1972, Technical Paper 63
No abstract available at this time...
Fish rhabdoviruses: Morphology and ultrastructure of North American salmonid isolates
R. W. Darlington, R. Trafford, K. Wolf
1972, Archiv Fur Die Gesamte Virusforschung (39) 257-264
The morphology and ultrastructure of three North American salmonid pathogens, Oregon sockeye salmon, chinook salmon and infectious hematopoietic necrosis viruses, were examined by thin sectioning and negative staining after growth in fathead minnow cells at 10 ° C. The viruses matured at the plasma membrane of these cells. They were...
Channel catfish virus disease: Revised
J.A. Plumb
1972, Fish Disease Leaflet 18
No abstract available at this time...
In vitro studies with Nifurpirinol (P-7138) and bacterial fish pathogens
A. J. Ross
1972, Progressive Fish-Culturist (34) 18-20
Accumulation of dieldrin in an alga (Scenedesmus obliquus), Daphnia magna, and the guppy (Poecilia reticulata)
Robert E. Reinert
1972, Journal of the Fisheries Research Board of Canada (29) 1413-1418
Scenedesmus obliquus, Daphnia magna, and Poecilia reticulata accumulated dieldrin directly from water; average concentration factors (concentration in organism, dry weight, divided by concentration in water) were 1282 for the alga, 13,954 for D. magna, and 49,307 (estimated) for the guppy. The amount accumulated by each species at equilibrium (after about...
Cheshire glass sand deposits in the Cheshire area, Massachusetts
Newton Earl Chute
1972, Open-File Report 72-68
A day and a half were spent on September 15 and 16, 1943 in a reconnaissance study of the old glass sand quarries in the Cheshire Quartzite near Cheshire, Massachusetts....
Mariner 9 television observations of Phobos and Deimos
James B. Pollack, J. Veverka, M. Noland, C. Sagan, W.K. Hartmann, T. C. Duxbury, G.H. Born, D.J. Milton, B.A. Smith
1972, Icarus (17) 394-407
Mariner 9 photographs of Phobos and Deimos have yielded new information about the orbits, rotation periods, sizes, shapes, and surface characteristics of the satellites. Both satellites appear to be in synchronous rotation. They are irregular, heavily cratered bodies whose shapes appear to have been determined largely by impact fragmentation and...
Radiative-neutron-capture gamma-ray analysis by a linear combination technique
A.B. Tanner, R.C. Bhargava, F. E. Senftle, J.M. Brinkerhoff
1972, Nuclear Instruments and Methods (102) 61-72
The linear combination technique, when applied to a gamma-ray spectrum, gives a single number indicative of the extent to which the spectral lines of a sought element are present in a complex spectrum. Spectra are taken of the sought element and of various...
Graphical methods for representing form and stability of aqueous metal ions
J.D. Hem
1972, Chemical Geology (9) 119-132
The equilibrium distributions of solute species of aluminum at 25°C and one atmosphere pressure are shown graphically in systems containing fluoride, as functions of the total dissolved aluminum and fluoride. The predominant form of complex and degree of complexing are also shown...
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...
Microcoulometric measurement of water in minerals
M. Cremer, H.N. Elsheimer, E.E. Escher
1972, Analytica Chimica Acta (60) 183-192
A DuPont Moisture Analyzer is used in a microcoulometric method for determining water in minerals. Certain modifications, which include the heating of the sample outside the instrument, protect the system from acid gases and insure the conversion of all hydrogen to water vapor. Moisture analyzer...
A probe for neutron activation analysis in a drill hole using 252Cf, and a Ge(Li) detector cooled by a melting cryogen
A.B. Tanner, R.M. Moxham, F. E. Senftle, J.A. Baicker
1972, Nuclear Instruments and Methods (100) 1-7
A sonde has been built for high-resolution measurement of natural or neutron-induced gamma rays in boreholes. The sonde is 7.3 cm in diameter and about 2.2 m in length and weighs about 16 kg. The lithium-compensated germanium semiconductor detector is stabilized at −185...
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...
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...
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-...
Structural profile of the northwestern Caribbean
William P. Dillon, J. G. Vedder, R.J. Graf
1972, Earth and Planetary Science Letters (17) 175-180
A seismic reflection and gravity profile across the continental margin of the Yucatan Peninsula, Yucatan Basin, Cayman Ridge, and Cayman Trough suggests that sediments in the Yucatan Basin consist of a thick succession of beds dominated by turbidites that overlie a thick but irregular sequence of beds, probably dominated by...
