Changes in mortality of lake trout (Salvelinus namaycush) in Michigan waters of Lake Superior in relation to sea lamprey (Petromyzon marinus) predation, 1968-78
Richard L. Pycha
1980, Canadian Journal of Fisheries and Aquatic Sciences (37) 2063-2073
Total mortality rates of lake trout (Salvelinus namaycush) of age VII and older from eastern Lake Superior were estimated from catch curves of age distributions each year in 1968–78. The instantaneous rate of total mortality Z varied from 0.62 to 2.31 in close synchrony with sea lamprey (Petromyzon marinus) wounding rates on lake...
Development and survival of embryos of lake herring at different constant oxygen concentrations and temperatures
L.T. Brooke, P.J. Colby
1980, Progressive Fish-Culturist (42) 3-9
Eggs of lake herring (Coregonus artedii) were incubated in a continuous-flow system at four constant water temperatures (2-8°C) and five dissolved oxygen (DO) concentrations (1-12 mg/L). In comparison with incubation time at 12 mg/L DO, time to median hatch was significantly longer (P<0.05) at 2 mg/L at 6°C (no hatch...
Minerals, lands, and geology for the common defence and general welfare, Volume 2, 1879-1904 : A history of geology in relation to the development of public-land, federal-science, and mapping policies and the development of mineral resources in the United States during the first 25 years of the U.S. Geological Survey
Mary C. Rabbitt
1980, Book
In the traditional view of the Survey's first 25 years, which are the subject of much of this volume, John Wesley Powell, with his broad view of science and advanced ideas of land and water in the West, is the heroic figure. Clarence King is dismissed as brilliant but with...
Tectonic stresses in the lithosphere: constraints provided by the experimental deformation of rocks.
S. H. Kirby
1980, Journal of Geophysical Research Solid Earth (85) 6353-6363
The strengths of rocks clearly place an upper limit on the stress that can be sustained by the upper half of the lithosphere. Laboratory data on rock rheology are generally lacking at intermediate temperatures and pressures on the important rock types expected in the lithosphere, so a definitive accounting of...
Classification of sea lamprey (Petromyzon marinus) attack marks on Great Lakes lake trout (Salvelinus namaycush)
Everett Louis King Jr.
1980, Canadian Journal of Fisheries and Aquatic Sciences (37) 1989-2006
Criteria for the classification of marks inflicted by sea lamprey (Petromyzon marinus) into nine categories were developed from laboratory studies in an attempt to refine the classification system used in field assessment work. These criteria were based on characteristics of the attachment site that could be identified under field conditions...
Human disturbance at water sources of desert bighorn sheep
D.M. Leslie, C. L. Douglas
1980, Wildlife Society Bulletin (8) 284-290
Foods of breeding tricolored blackbirds in agricultural areas of Merced County, California
J. P. Skorupa, R. L. Hothem, R. W. DeHaven
1980, Condor (82) 465-467
No abstract available....
Drinking and construction of water catchments by the desert tortoise, Gopherus agassizii, in the Mojave Desert
P.A. Medica, R.B. Bury, R. Luckenbach
1980, Herpetologica (36) 301-304
Epizootic of coccidiosis in free-flying lesser scaup (Aythya affinis)
R. M. Windingstad, M.E. McDonald, Louis N. Locke, S.M. Kerr, J.A. Sinn
1980, Avian Diseases (24) 1044-1049
A coccidiosis epizootic has occurred in lesser scaup (Aythya affinis) at Bluestem Reservoir in eastern Nebraska during the spring in each of three recent years: 1976-1978. Losses peaked during the period from mid-March through April. As much as 29% of the peak population of scaup using the reservoir died. Necropsies...
Type C botulism losses at Horicon National Wildlife Refuge, 1978
R. M. Windingstad, R. M. Duncan, R.L. Drieslein
1980, Transactions of the Wisconsin Academy of Sciences, Arts, and Letters (68) 208-211
Avian botulism was responsible for the death of over 6,000 waterfowl at Horicon National Wildlife Refuge in Wisconsin in 1978. The outbreak occurred in early fall on a flooded 250 hectare fallow agricultural area on the northeast end of the refuge. The species most severely affected was the green-winged teal...
Wildlife hazards from Furadan 3G applications to rice in Texas
Edward L. Flickinger, Kirke A. King, W.F. Stout, M.M. Mohn
1980, Journal of Wildlife Management (44) 190-197
Mortality of birds, fish, frogs, crayfish, earthworms, and nontarget insects occurred in rice fields after treatments of Furadan 3G granules in 3 Texas counties in 1970 and 1973-75. Three western sandpipers (Ereunetes mauri), 1 pectoral sandpiper (Erolia melanotos), and 2 red-winged blackbirds (Agelaius phoeniceus) were found dead or moribund between...
Effect of leaching on apparent digestion coefficients of feedstuffs for salmonids
R. R. Smith, M. C. Peterson, A. C. Allred
1980, Progressive Fish-Culturist (42) 195-199
Fecal excretions were collected from rainbow trout (Salmo gairdneri) in metabolism chambers. In this method of collection the daily excretion is suspended in about 1 L of water. Aliquots of the suspension were separated into solid and liquid fractions by settling, centrifuging, or filtering. Solid and liquid fractions and the...
Human disturbance at water sources of desert bighorn sheep
David M. Leslie Jr., C. L. Douglas
1980, Technical Report CPSU/UNLV 010/12
No abstract available at this time...
Hydrogeologic data for Eureka Springs landfill and adjacent area, north-central Hillsborough County, Florida, 1969-73
A. D. Duerr, Joseph William Stewart
1980, Open-File Report 80-70
Well location and construction data are summarized for 218 wells in the Eureka Springs landfill and adjacent areas in north-central Hillsborough County, FL. Most of the data are for 88 wells within the immediate vicinity of the landfill. Water-quality data are presented for 93 of the wells and 13 surface-water...
Geohydrology of southwestern Kansas
Edwin D. Gutentag, David H. Lobmeyer, Steven E. Slagle
1980, Open-File Report 80-218
Southwestern Kansas is one of the principal areas of ground-water development for irrigation in the State, and many reports are available concerning ground-water conditions in the area. The purposes of this investigation were to consolidate and update data, to determine the extent and effects of irrigation development on the ground-water...
Geophysical, lithologic, and water-quality data from Superior Dry Lake, San Bernardino County, California
Roger D. Dockter
1980, Open-File Report 80-1029
No abstract available....
Flood risks and the willingness to purchase flood insurance
M.R. Karlinger, E. D. Attanasi
1980, Water Resources Research (16) 617-622
Computer simulation experiments were conducted to determine the effects of alternative sources of uncertainty on the willingness to pay for flood insurance. Two alternative insurance protection schemes were investigated: coinsurance and fixed coverage. The question investigated here is to what extent does the insurance scheme influence how purchasers respond to...
Water resources data for Maryland and Delaware, water year 1978
Water Resources Division, U.S. Geological Survey
1979, Water Data Report MD-DE-78-1
No abstract available....
Developing a state water plan: Ground-water conditions in Utah, spring of 1979
Don Price, W.N. Jibson, P. Kay Contratto, R. W. Mower, Judy I. Steiger, V.L. Jensen, M. D. ReMillard, D. C. Emett, C.T. Sumison, P.A. Carroll, L.J. Neff, G. W. Sandberg, L. R. Herbert
1979, Cooperative Investigations Report 18
This report is the sixteenth 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...
Geology and groundwater resources of Monroe County, Pennsylvania
Orville B. Lloyd Jr., Louis D. Carswell
1979, Water Resource Report 47
Monroe County is on the eastern border of Pennsylvania and includes much of the area popularly called the Poconos. It is an area long used for outdoor recreation and includes a part of the Delaware Water Gap National Recreation Area. Water resources in the county are derived from precipitation. The...
Water resources of the central Powder River area of southeastern Montana
W. Roger Miller
1979, Bulletin 108
Geology and groundwater resources of western Crawford County, Pennsylvania
George R. Schiner, John T. Gallaher
1979, Water Resource Report 46
Western Crawford County is in northwestern Pennsylvania. The project area is 15 to 20 miles south of Lake Erie and is bordered on the west by Ohio. Drift of Pleistocene age (Wisconsinan Age) covers most of the area, which is a maturely dissected plateau. The drift in the upland area...
Environment of ore deposition in the Creede mining district, San Juan Mountains, Colorado; Part IV, source of fluids, from oxygen, hydrogen, and carbon isotope studies
P. M. Bethke, R. O. Rye
1979, Economic Geology (74) 1832-1851
The hydrogen isotopic composition of fluids responsible for formation of the near-surface silver-base metal vein deposits at Creede was measured by direct analysis of inclusion fluids in sphalerite, quartz, and rhodochrosite and was estimated from analyses of illite and chlorite. The oxygen isotopic composition was determined directly on inclusion fluids...
Reconnaissance of chemical quality of surface water and fluvial sediment in the Dirty Devil River basin, Utah
James C. Mundorff
1979, Technical Publication 65
The water-quality reconnaissance in the Dirty Devil River basin, covered an area of about 4,300 square miles (11,100 square kilometers). were obtained by the U.S. Geological Survey one or more times at 104 during the period July 1975 to September 1976; and during visits to 34 sites during the same...
A digital model for simulation of ground-water hydrology in the Houston area, Texas
Walter R. Meyer, Jerry E. Carr
1979, Limited Printing Report 103
This report documents the construction and calibration of a digital model for the simulation of hydrologic conditions in the Chicot and Evangeline aquifers in the Houston area of southeastern Texas. The model is a five-layer finite-difference model, with a grid pattern of 63 x 67 nodes representing an area of...
