Hydrogen and oxygen isotope exchange reactions between clay minerals and water
J. R. O’Neil, Y.K. Kharaka
1976, Geochimica et Cosmochimica Acta (40) 241-246
The extent of hydrogen and oxygen isotope exchange between clay minerals and water has been measured in the temperature range 100–350° for bomb runs of up to almost 2 years. Hydrogen isotope exchange between water and the clays was demonstrable at...
Resource data bases-Resource assessment
A. L. Clark
1976, Computers & Geosciences (2) 309-311
The U.S. Geological Survey's Office of Resource Analysis is developing computer methods for the handling of mineral-resources data in order to provide improved means for addressing and manipulating data. These methods include: computerized data files and predictive resource models. Data files contain the raw or disaggregated information on mineral deposits...
U-Th-Pb and Rb-Sr systematics of Allende and U-Th-Pb systematics of Orgueil
M. Tatsumoto, D.M. Unruh, G. A. Desborough
1976, Geochimica et Cosmochimica Acta (40) 617-634
U-Th-Pb systematics study of Allende inclusions showed that U, Th and Sr concentrations in Ca, Al (pyroxene)-rich chondrules and white and pinkish-white aggregate separates of Allende are five to ten times higher than those of the matrix, whereas Mg (olivine)-rich chondrules have U and Th concentrations about twice as high...
The national coal-resources data system of the U.S. geological survey
M.D. Carter
1976, Computers & Geosciences (2) 331-340
The National Coal Resources Data System (NCRDS) was designed by the U.S. Geological Survey (USGS) to meet the increasing demands for rapid retrieval of information on coal location, quantity, quality, and accessibility. An interactive conversational query system devised by the USGS retrieves information from the data bank through a standard...
RESIN, a FORTRAN IV program for determining the area of influence of samples or drill holes in resource target search
D.A. Singer
1976, Computers & Geosciences (2) 249-260
A FORTRAN IV program that calculates the area of influence of drill holes or samples with respect to the size and shape of elliptical or circular resource targets is presented. Program options include determination of the degree to which areas within a region have been explored and estimation of probabilities...
Geologic history of Cape Cod, Massachusetts
Water Resources Division, U.S. Geological Survey
1976, Report
Cape Cod, a sandy peninsula built mostly during the Ice Age, juts into the Atlantic Ocean like a crooked arm. Because of its exposed location, Cape Cod was visited by many early explorers. Although clear-cut evidence is lacking, the Vikings may have sighted this land about 1,000 years ago. It...
Lithium, nature's lightest metal
Water Resources Division, U.S. Geological Survey
1976, Report
[Book review] One Time Harvest: Reflections on Coal and our Future, by Mike Jacobs
Douglas H. Johnson
1976, North Dakota History (43) 101-102
Review of: One time harvest: reflections on coal and our future. Mike Jacobs. 1975. Indiana University. 300 p....
Glomerular mesangial fibrosis in hatchery-reared rainbow trout (Salmo gairdneri)
D.E. Hinton, R.T. Jones, R. L. Herman
1976, Journal of the Fisheries Research Board of Canada (33) 2551-2559
Light and electron microscopic studies were performed on tissues of hatchery-reared rainbow trout (Salmo gairdneri) having a disease of currently unknown etiology with external symptoms of severe edema which causes increased mortality rate. Comparison with unaffected trout tissues revealed loss of cellularity in glomerular tufts with a replacement of mesangial...
An acute septicaemic disease of brown trout (Salmo trutta) and Atlantic salmon (Salmo salar) caused by a Pasteurella-like organism
T. Hastein, G. L. Bullock
1976, Journal of Fish Biology (8) 23-26
Ulcerations of the skin associated with haemorrhagic petechiae of liver and kidneys, were the main signs of disease affecting salmon and brown trout in Norway. A death rate of 15–20% was estimated for the 5 month period of mid-March-August, although mortalities occurred throughout the year. Bacteriological examinations, involving 36 isolates,...
Utilization of satellite data for inventorying prairie ponds and lakes
E.A. Work, D.S. Gilmer
1976, Photogrammetric Engineering and Remote Sensing (42) 685-694
By using data acquired by LANDSAT-1 (formerly ERTS- 1), studies were conducted in extracting information necessary for formulating management decisions relating to migratory waterfowl. Management decisions are based in part on an assessment ofhabitat characteristics, specifically numbers, distribution, and quality of ponds and lakes in the prime breeding range. This...
A relationship between avian carcasses and living invertebrates in the epizootiology of avian botulism
Ruth M. Duncan, Wayne I. Jensen
1976, Journal of Wildlife Diseases (12) 116-126
A survey of the sources of Clostridium botulinum type C toxin possibly utilized as food by aquatic birds in an epizootic area of avian botulism in northern Utah showed that living aquatic and terrestrial invertebrates normally found in close association with dead, decomposing birds commonly carried the toxin. Of 461 samples associated...
Female homogamety in grass carp (Ctenopharyngodon idella) determined by gynogenesis
Jon G. Stanley
1976, Journal of the Fisheries Research Board of Canada (33) 1372-1374
Gynogenesis occurred in eggs of grass carp (Ctenopharyngodon idella) treated with X-irradiated milt from goldfish (Carassius auratus). Gynogenetic offspring were females, which indicates functional female homogamety in grass carp. Five of these gynogenetic fish were used as an egg source for a second generation of artificially gynogenetic fish. The percentage...
Diseases: A threat to our waterfowl
Milton Friend
1976, Ducks Unlimited (40) 36-37
No abstract available....
Morphology of androgenetic and gynogenetic grass carp, Ctenopharyngodon idella (Valenciennes)
J.C. Stanley, D.E. Schultz
1976, Journal of Fish Biology (9) 523-528
Crosses between female carp x male grass carp resulted in androgenetic grass carp and hybrids. Fertilizing grass carp eggs with carp milt that had been irradiated with ultraviolet light for 15 min at 1.0 mW/cm2 produced gynogenetic grass carp. We compared the morphology of experimental progeny with that of the parental...
Optimum level of dietary biotin for growth, feed utilization, and swimming stamina of fingerling lake trout (Salvelinus namaycush)
H. A. Poston
1976, Journal of the Fisheries Research Board of Canada (33) 1803-1806
Triplicate lots of fingerling lake trout (Salvelinus namaycush) held at 9 C for 20 wk were fed a semipurified basal diet supplemented with 1% spray-dried egg white or d-biotin at concentrations of 0.1, 0.5, 1.0, or 5.0 ppm. Trout fed the basal diet, either alone or with egg white, grew more slowly and...
Infection and mortality in captive wild-trapped canvasback ducks
R. M. Kocan, Matthew C. Perry
1976, Journal of Wildlife Diseases (12) 30-33
Fungal, bacterial and malarial infections, as well as malnutrition caused heavy mortality in a group of wild-trapped canvasbacks (Aythya valisineria) held in 10 × 3 × 2 m open water pens. Deaths occurred between 21 and 158 days after confinement and were associated...
Let us face the truth: Or a new look at diseases of fishes
S. F. Snieszko
1976, Fisheries (1) 17-18
No abstract available....
An outbreak of erysipelas in eared grebes (Podiceps nigricollis)
Wayne I. Jensen, Sally E. Cotter
1976, Journal of Wildlife Diseases (12) 583-586
An outbreak of erysipelas killed an estimated 5,000 aquatic birds on Great Salt Lake (Utah) in late November, 1975. Although several thousand ducks and gulls were using the lake, at least 99 percent of the victims were eared grebes. A hypothetical explanation for the selective mortality is offered....
Avian botulism epizootiology on sewage oxidation ponds in Utah
Daniel W. Moulton, Wayne I. Jensen, Sondra K. Stewart
1976, Journal of Wildlife Management (40) 735-742
In the microenvironment concept of avian botulism epizootiology, it is hypothesized that invertebrate carcasses may serve both as a substrate for toxin production by Clostridium botulinum type C and as a vehicle for toxin transmission to water birds. We field-tested that hypothesis by attempting to induce botulism in wing-clipped mallard...
Reproduction by Uta stansburiana in southern Nevada
P.A. Medica, F.B. Turner
1976, Journal of Herpetology (10) 123-128
Combating waterfowl diseases
Milton Friend
1976, Ducks Unlimited (40) 44-46
No abstract available....
Fine structure of an unidentified protozoon in the epithelium of rainbow trout exposed to water with Myxosoma cerebralis
S.B. Daniels, R. L. Herman, C.N. Burke
1976, Journal of Protozoology (23) 402-410
An intracellular protozoon was discovered in the epithelium of young rainbow trout (Salmo gairdneri) exposed for as short a time as 1 hr to water known to contain infective stages of Myxosoma cerebralis. Light- and electron-microscopic examination of this tissue revealed what appeared to be a proliferative stage (presumptive schizont) of a...
Capturing and marking howler monkeys for field behavioral studies
N.J. Scott Jr., A.F. Scott, L.A. Malmgren
1976, Primates (17) 527-533
Methods for capturing and marking howler monkeys for ecological studies are discussed. Systems for capturing and handling animals are compared. A dart with liquid Sernylan for capture and Sernylan or Ketamine as a holding drug was preferred to darts using powdered succinylcholine chloride (SCC) and ether. The effectiveness of both...
Teton Dam flood of June 1976, Menan Buttes quadrangle, Idaho
Cecil A. Thomas, Herman A. Ray, William A. Harenberg
1976, Hydrologic Atlas 570
The failure of the Teton Dam caused extreme flooding along the Teton River, Henrys Fork, and Snake River in southeastern Idaho on June 5-8, 1976. No flooding occurred downstream from American Falls Reservoir. The inundated areas and maximum water-surface elevations are shown in a series of 17 hydrologic atlases. The...
