Loss of nitrogenous dissolved organic matter from small lakes
Bruce A. Manny, Akira Otsuki
1981, Journal of Freshwater Ecology (1) 193-202
To determine how much organic nitrogen is lost from lakes during winter by natural processes, we collected water in fall and winter from six small lakes (area, 5-822 hectares) and separated organic matter dissolved in the water with n-butanol into three fractions--yellow organic acids, a white precipitate, and aqueous (nonextractable)...
Oxygen consumption and filtering rate of Daphnia pulex after exposure to water-soluble fractions of naphthaline, phenanthrene, No. 2 fuel oil, and coal-tar creosote
J. G. Geiger, A.L. Buikema Jr.
1981, Bulletin of Environmental Contamination and Toxicology (27) 783-789
No abstract available....
Comparative hatchability of lake trout eggs differing in contaminant burden and incubation conditions
M. J. Mac, W.H. Berlin, D. V. Rottiers
1981, Technical Paper 105
In 1972, fertilized eggs of lake trout (Salvelinus namaycush) from the Marquette (Michigan) State Fish Hatchery (where levels of contaminants are relatively low) and eggs from lake trout collected in Michigan waters of Lake Michigan near Saugatuck and Charlevoix (where levels of PCB's and DDE are elevated) were incubated at...
Simulation model of Skeletonema costatum population dynamics in northern San Francisco Bay, California
J. E. Cloern, R. T. Cheng
1981, Estuarine, Coastal and Shelf Science (12) 83-100
A pseudo-two-dimensional model is developed to simulate population dynamics of one dominant phytoplankton species (Skeletonema costatum) in northern San Francisco Bay. The model is formulated around a conceptualization of this estuary as two distinct but coupled subsystems—a deep (10–20 m)...
Introduction and summary: Chlorinated hydrocarbons as a factor in the reproduction and survival of lake trout (Salvelinus namaycush) in Lake Michigan
Wayne A. Willford, Roger A. Bergstedt, William H. Berlin, Neal R. Foster, Robert J. Hesselberg, Michael J. Mac, Dora R. May Passino, Robert E. Reinert, Donald V. Rottiers
1981, Book chapter, Chlorinated hydrocarbons as a factor in the reproduction and survival of lake trout (Salvelinus namaycush) in Lake Michigan
Although lake trout (Salvelinus namaycush) were considered extinct in Lake Michigan by the mid 1950's, control of the parasitic sea lamprey (Petromyzon marinus) and extensive restocking resulted in an abundance of hatchery-produced lake trout in the lake by the early 1970's. However, no naturally produced yearling or older lake trout...
Environmental Assessment: Activities Proposed by the San Francisco Clean Water Program at Ocean Beach, Golden Gate National Recreation Area
N. Hornor, J. A. Howell, K. Wong
1981, Report
No abstract available at this time...
The relationship of geophysical measurements to hydraulic conductivity at the Brantley damsite, New Mexico
U. Schimschal
1981, Geoexploration (19) 115-125
The objective of this study was to develop techniques to correlate hydraulic conductivity tests with geophysical logs. In addition, the relationships obtained from boreholes were correlated to surface resistivity soundings in an effort to define areas of potential high water loss at the proposed site for Brantley Dam.Hydraulic conductivity obtained...
An outbreak of duck virus enteritis (duck plague) in a captive flock of mixed waterfowl
Roy D. Montgomery, George Stein Jr., Meliton N. Novilla, Sarah S. Hurley, Robert J. Fink
1981, Avian Diseases (25) 207-213
An outbreak of duck virus enteritis occurred in a flock of captive waterfowl composed of mallards (Anas platyrhynchos), black ducks (Anas rubripes), and Canada geese (Branta canadensis). Although all three species were housed together, morbidity and mortality were confined to the 227 black ducks and Canada geese, of which 180...
Depositional and erosional features of the inner shelf, northeastern Bering Sea.
R. E. Hunter, D.R. Thor, M.L. Swisher
1981, Geologie en Mijnbouw (61) 49-62
Sonographs and bathymetric profiles from water depths less than 15m in the Nome-Solomon, Port Clarence, and Yukon Delta areas of the Alaskan Bering Sea coast show features generated by waves, currents, and drifting ice. The surficial sediments in the Nome-Solomon and Port Clarence areas range in grain size from sand...
Map showing water circulation and rates of sedimentation in the Corpus Christi 1 degree by 2 degrees quadrangle, Texas
H. L. Berryhill Jr., A. R. Trippet
1981, IMAP 1287-A
No abstract available....
Altitude of water table, Biscayne aquifer, Dade County, Florida, October 1978
L. J. Swayze
1981, Open-File Report 81-327
No abstract available....
Seismic evidence for an extensive gas-bearing layer at shallow depth, offshore from Prudhoe Bay, Alaska
G. Boucher, E. Reimnitz, E. Kempema
1981, Cold Regions Science and Technology (4) 63-71
High-resolution seismic reflection data, recorded offshore from Prudhoe Bay, Alaska, were processed digitally to determine the reflectivity structure of the uppermost layers of the seafloor. A prominent reflector, found at 27 m below the mud line (water depths 7-9 m), has a negative reflection coefficient greater than 0.5. The large...
Tertiary carbonate-dissolution cycles on the Sierra Leone Rise, eastern equatorial Atlantic Ocean
Walter E. Dean, James V. Gardner, P. Cepek
1981, Marine Geology (39) 81-101
Most of the Tertiary section on Sierra Leone Rise off northwest Africa consists of chalk, marl, and limestone that show cyclic alterations of clay-rich and clay-poor beds about 20–60 cm thick. On the basis of biostratigraphic accumulation rates, the cycles in Oligocene and Miocene chalk have periods which average about...
Water resources data for Maryland and Delaware, water year 1979
Water Resources Division, U.S. Geological Survey
1980, Water Data Report MD-DE-79-1
No abstract available....
Developing a state water plan: Ground-water conditions in Utah, spring of 1980
L. R. Herbert, R. B. Garrett, E.C. Gerhart, Judy I. Steiger, Cynthia L. Appel, V.L. Jensen, Michael Enright, S.K. Dubois, D. C. Emett, A.I. Guhman, L.J. Neff, L.G. Sultz, G. W. Sandberg
1980, Cooperative Investigations Report 19
This is the seventeenth in a series of annual reports that describe ground-water conditions in Utah. Reports in this series, prepared cooperatively by the U.S. Geological Survey and the Utah Division of Water Resources, provide data to enable interested parties to keep abreast of changing ground-water conditions.This report, like the...
Utah water use data: Public water supplies, 1960-1978
David Mills, Ronald Jibson, James Riley, David Hooper, Richard Schwarting
1980, Utah Division of Water Rights Water-Use Report 1
This report was prepared as a part of the Statewide cooperative water-resources investigation program administered jointly by the Utah Department of Natural Resources, Division of Water Rights and the United States Geological Survey. The program is conducted to meet the water administration and water-resources data needs of the State, as...
Bibliography of U.S. Geological Survey water-resources reports for Utah
1980, Utah Division of Water Rights Information Bulletin 27
This bibliography contains a complete listing to June 30, 1980, of reports relating to the water resources of Utah prepared by personnel of the U.S. Geological Survey. Discussions of the related subjects of geology, hydrology, and chemical quality of the water are included in many of the reports. The reports...
Ground-water resources and geology of Washington and Ozaukee Counties, Wisconsin
H. L. Young, W. G. Batten
1980, Wisconsin Geological & Natural History Survey Information Circular 38
Population growth is placing increased demands on water supplies in Washington and Ozaukee Counties. Water from three principal aquifers supplies most municipal, industrial, irrigation, residential, and farm water needs in these counties. These are the sand-and-gravel, Niagara, and sandstone aquifers. As much as 15 gallons per minute can be obtained...
Modern sedimentary facies of the open Pacific coast and Pleistocene analogs from Montery Bay, California
W.R. Dupre, H.E. Clifton, R. E. Hunter, Michael E. Field
Michael E. Field, et al., editor(s)
1980, Conference Paper, Quaternary depositional environments of the Pacific Coast : Pacific Coast Paleogeography Symposium 4
Depositional processes and sedimentary structures of wave-dominated Pacific coastal environments vary systematically with water depth. The depth-limited open-coast facies identifiable by their sedimentary structures are the inner shelf, barred or nonbarred nearshore, beach, and coastal dune facies. These facies are most commonly preserved in shallowing-upward progradational sequences. The...
Ground-water data for the Salt Basin, Eagle Flat, Red Light Draw, Green River Valley and Presidio Bolson in westernmost Texas
Donald E. White, Joseph S. Gates, James T. Smith, Bonnie J. Fry
1980, Report 259
From October 1971 through October 1974. the U.S. Geological Survey collected ground-water data in the basins in Texas west of the Pecos River drainage area and northwest of the Big Bend country. The basins included are, from east to west: The Presidio Bolson; the Salt Basin; Green River Valley, Eagle...
Development of Ground Water in the Houston District, Texas, 1970-1974
R.K. Gabrysch
1980, Report 241
Total withdrawals of ground water in the Houston district increased 9 percent from about 488 million gallons per day (21.4 cubic meters per second) in 1970 to about 532 million gallons per day (23.3 cubic meters per second) in 1974. The average annual rate of increase from 1960 to 1969...
Summary groundwater resources of Centre County, Pennsylvania
Charles R. Wood
1980, Water Resource Report 48
The northwest third of Centre County lies in the Appalachian Plateaus physiographic province. The higher altitudes are underlain by the Conemaugh, Allegheny, and Pottsville Groups, which consist of sandstone, shale, and thin limestone and coal beds. The average yield of nondomestic wells in the Allegheny Group is 20 gpm (gallons...
Seepage study of the West Side and West Canals, Box Elder County, Utah
R.W. Cruff
1980, Technical Publication 67
A study of the gains or losses of the West Side and West Canals from Cutler Reservoir to near Penrose, Box Elder County, Utah, was made to aid in water allocation for the canal system. Four sets of seepage measurements made in 1978 were used in the analysis. Adjustments for...
Chemical quality of water in abandoned zinc mines in northeastern Oklahoma and southeastern Kansas
Stephen J. Playton, Robert E. Davis, Roger G. McClaflin
1980, Circular 82
Onsite measurements of pH, specific conductance, and water temperature show that water in seven mine shafts in northeastern Oklahoma and southeastern Kansas is stratified. With increasing sampling depth, specific conductance and water temperature tend to increase, and pH tends to decrease. Concentrations of dissolved solids and chemical constituents in mine-shaft...
Estimated inflow and evaporation for Great Salt Lake, Utah, 1931-76, with revised model for evaluating the effects of dikes on the water and salt balance of the lake: Comprehensive water planning program
K.M. Waddell, J.D. Barton
1980, Cooperative Investigations Report 20
No abstract available....
