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Page 4354, results 108826 - 108850

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Publication Extents

Not all publications have extents, not all extents are completely accurate
Modeling potential impacts of the Garrison Diversion Unit project on Sand Lake and Arrowwood National Wildlife Refuges: a feasibility analysis
David B. Hamilton, Gregor T. Auble, Adrian H. Farmer, James E. Roelle
1987, Report
The Garrison Diversion Unit (GDU) of the Pick-Sloan Missouri Basin program was authorized in 1965, with the purpose of diverting Missouri River water to the James River for irrigation, municipal and industrial water supply, fish and wildlife habitat, recreation, and flood control. The project was reauthorized in 1986, with the...
Persistence of DDT and metabolites in wildlife from Washington State orchards
L. J. Blus, Charles J. Henny, C. J. Stafford, R. A. Grove
1987, Archives of Environmental Contamination and Toxicology (16) 467-476
Residues of the DDT group, particularly p,p′-DDT (DDT) were detected in high or unusual amounts in some wildlife samples collected in fruit orchards near Wenatchee, Washington from 1979 to 1983. Samples of birds contained p,p′-DDE (DDE) and DDT in ratios (DDE:DDT) as low as 2.6:1 in eggs and 1.9:1 in brains....
Big Soda Lake (Nevada). 2. Pelagic sulfate reduction
Richard L. Smith, Ronald S. Oremland
1987, Limnology and Oceanography (32) 794-803
The epilimnion of hypersaline, alkaline, meromictic Big Soda Lake contains an average 58 mmol sulfate liter−1 and 0.4 µmol dissolved iron liter−1. The monimolimnion, which is permanently anoxic, has a sulfide concentration ranging seasonally from 4 to 7 mmol liter−1. Depth profiles of sulfate reduction in the monimolimnion, assayed with a 35S tracer...
Rapid assay for microbially reducible ferric iron in aquatic sediments
Derek R. Lovely, Elizabeth Philips
1987, Applied and Environmental Microbiology (53) 1536-1540
The availability of ferric iron for microbial reduction as directly determined by the activity of iron-reducing organisms was compared with its availability as determined by a newly developed chemical assay for microbially reducible iron. The chemical assay was based on the reduction of poorly crystalline ferric iron by hydroxylamine under...
Big Soda Lake (Nevada). 3. Pelagic methanogenesis and anaerobic methane oxidation
Niels Iversen, Ronald S. Oremland, Michael J. Klug
1987, Limnology and Oceanography (32) 804-814
In situ rates of methanogenesis and methane oxidation were measured in meromictic Big Soda Lake. Methane production was measured by the accumulation of methane in the headspaces of anaerobically sealed water samples; radiotracer was used to follow methane oxidation. Nearly all the methane oxidation occurred in the anoxic zones of...
Big Soda Lake (Nevada). 4. Vertical fluxes of particulate matter: Seasonality and variations across the chemocline
James E. Cloern, Brian E. Cole, Sally M. Wienke
1987, Limnology and Oceanography (32) 815-824
Vertical fluxes of particulate organic matter were measured with sediment traps above and below the chemocline of Big Soda Lake to define the seasonality of sinking losses from the mixolimnion and determine the effectiveness of the chemocline (pycnocline) as a barrier to the sinking of biogenic particles. Seasonality of sedimentation...
Elimination of super(14)C-bisazir residues in adult sea lamprey (Petromyzon marinus)
J. L. Allen, V. K. Dawson
1987, Report
Bisazir (P.P-bis(1-aziridinyl)-N-methylphosphinothioic amide), a chemosterilant, was administered to sea lampreys (Petromyzon marinus ) by intraperitoneal injection of 100 mg/kg or by immersion for 2 h in a 100- mg/L aqueous solution of the chemical. Whole body analysis of the injected lampreys showed that total residue concentrations decreased to...
The use of the National Water Data Exchange in support of estuarine and coastal programs
Owen O. Williams, Melvin D. Edwards
1987, Conference Paper, Proceedings of the Tenth National conference of the Coastal Society
The National Water Data Exchange(NAWDEX) was established by the U.S. Geological Survey in 1976. Its program is directed toward improving the exchange of water and water-related data collected and made available by hundreds of federal and non-federal agencies throughout the United States....
Growth and physiological condition of black ducks reared on acidified wetlands
Barnett A. Rattner, G.M. Haramis, Diane S. Chu, C.M. Bunck, C.G. Scanes
1987, Canadian Journal of Zoology (65) 2953-2958
Acid deposition has been identified as one of several possible factors contributing to the decline of some waterfowl populations in North America. In an effort to examine the effects of acidification on black duck (Anas rubripes) recruitment, growth and physiological condition were monitored in ducklings foraging for a 10-day trial...
Selenium contamination of the Grasslands, a major California waterfowl area
H. M. Ohlendorf, R. L. Hothem, Thomas W. Aldrich, A. J. Krynitsky
1987, Science of the Total Environment (66) 169-183
In a recent study at Kesterson Reservoir in California, selenium was shown to cause mortality and deformities in embryos of aquatic birds. The present study was conducted to determine if selenium or other contaminants in agricultural drainwater used for marsh management were likely to cause similar adverse effects in the...
The relation between human presence and occurrence of Giardia Cysts in streams in the Sierra Nevada, California
Thomas J. Suk, Stephen K. Sorenson, Peter D. Dileanis
1987, Journal of Freshwater Ecology (4) 71-75
A portable apparatus was used to filter large quantities of water from streams in California's Sierra Nevada. Samples were processed and examined for Giardia spp. Cysts of Giardia were detected in 22 of 49 (44.9 percent) samples collected at sites downstream from areas of high recreational use and in 5...
Response of wetland herbaceous communities to gradients of light and substrate following disturbance by thermal pollution
Christopher P. Dunn, Michael L. Scott
1987, Vegetatio (70) 119-124
The influence of thermal disturbance and site characteristics on distribution of herbs was studied in portions of a 3020 ha wetland in the southeastern USA. Presence-absence of 52 species in 130 0.25 m2 plots was determined from four sites with different disturbance histories and from an undisturbed site. Data from...
The 1875 eruption of Askja volcano, Iceland: Combined fractional crystallization and selective contamination in the generation of rhyolitic magma
R. Macdonald, R.S.J. Sparks, H. Sugurdsson, D.P. Mattey, D.W. Mcgarvie, R.L. Smith
1987, Mineralogical Magazine (51) 183-202
Major and trace element and Sr, Nd and O isotopic data are presented for ferrobasalts, icelandites, rhyolites, mixed pumices and silicic xenoliths of the 1875 eruption of Askja. Trace element modelling and Sr and Nd data largely confirm previous major element calculations that fractional crystallization was dominant in the generation...
In situ striped bass (Morone saxatilis) contaminant and water quality studies in the Potomac River
L. W. Hall Jr., W. S. Hall, S. J. Bushong, Roger L. Herman
1987, Aquatic Toxicology (10) 73-99
The objectives of this study were to evaluate survival of striped bass (Morone saxatilis) prolarvae and yearlings in the Potomac River by using in situ test chambers; correlate survival of both striped bass life stages with the presence of water quality conditions, inorganic contaminants, and organic contaminants and conduct histological...
U. S. Geological Survey begins seismic ground response experiments in Washington State
Arthur C. Tarr, K. W. King
1987, Earthquakes & Volcanoes (USGS) (19) 160-170
Residents of a West Seattle neighborhood must have been puzzled one Saturday morning in December 1986. Two men were leaning against the wall of a house and rhythmically pushing against it, and were being urged on by the shouts of another man standing on the roof. A horizontal seismometer was...
A wireline piston core barrel for sampling cohesionless sand and gravel below the water table
Michael M. Zapico, Samuel Vales, John A. Cherry
1987, Groundwater Monitoring & Remediation (7) 74-82
A coring device has been developed to obtain long and minimally disturbed samples of saturated cohesionless sand and gravel. The coring device, which includes a wireline and piston, was developed specifically for use during hollow-stem auger drilling but it also offers possibilities for cable tool and rotary drilling. The core...
Evidence for great Holocene earthquakes along the outer coast of Washington state
Brian F. Atwater
1987, Science (236) 942-944
Intertidal mud has buried extensive, well-vegetated lowlands in westernmost Washington at least six times in the past 7000 years. Each burial was probably occasioned by rapid tectonic subsidence in the range of 0.5 to 2.0 meters. Anomalous sheets of sand atop at least three ofthe buried lowlands suggest that tsunamis...
Geological terrains and crater frequencies on Ariel
J. B. Plescia
1987, Nature (327) 201-204
The southern hemisphere of Ariel, a satellite of Uranus, can be divided into several terrain types. Data on the size-frequency distribution of craters for those different terrain types indicate that these terrains formed over a relatively short period of time. Much information on Ariel's geological history can be gained from...
Volcanism and massive sulfide formation at a sedimented spreading center, Escanaba Trough, Gorda Ridge, northeast Pacific Ocean
Janet L. Morton, Mark L. Holmes, Randolph A. Koski
1987, Geophysical Research Letters (14) 769-772
Seismic‐reflection profiles over the sediment‐filled Escanaba Trough at the southern Gorda Ridge reveal a series of volcanic centers that pierce the sediment. The volcanic edifices are 3 to 6 km in diameter and are spaced at 15 to 20 km intervals along the axis of the trough. The volcanic intrusions...
Temporal changes in microseismicity and creep near Parkfield, California
C.M. Poley, A.G. Lindh, W. H. Bakun, S.S. Schulz
1987, Nature (327) 134-137
The 25-km-long section of the San Andreas fault near Parkfield, California ruptured in similar magnitude-6 earthquakes in 1881, 1901, 1922, 1934 and 1966. On the basis of a number of lines of seismological evidence, a section of the San Andreas fault, now termed the Parkfield preparation zone, has been identified...