Evaluation of habitat suitability index models for riverine life stages of American shad, with proposed models for premigratory juveniles
R. M. Ross, T. W. H. Backman, R. M. Bennett
1993, Biological Report 14
No abstract available at this time...
Ecologically correlated morphological variation in tadpoles of the leopard frog, Rana chiricahuensis
R.D. Jennings, N.J. Scott Jr.
1993, Journal of Herpetology (27) 285-293
Interspecific differences in tadpole morphology among leopard frogs of the Rana pipiens complex may represent adaptations to larval habitats. We documented variation in tadpole morphology among populations of R. chiricahuensis and compared intraspecific patterns of variation to those among species. Traits that exhibit similar patterns of variation in intraspecific and...
Resistance of different salmonid fishes correlates with isolation of Aeromonas salmonicida from external mucus
R. C. Cipriano, L.A. Ford
1993, Research Information Bulletin 99
No abstract available at this time...
Low survival rate of Atlantic salmon eggs believed due to Cytophaga psychrophila
R. C. Cipriano, L.A. Ford, J.D. Teska
1993, Research Information Bulletin 100
No abstract available at this time...
Mass mortality of abalone Haliotis cracherodii on the California Channel Islands: Tests of epidemiological hypotheses
K. D. Lafferty, A. M. Kuris
1993, Marine Ecology Progress Series (96) 239-248
No abstract available....
U.S.-Soviet Collaborative Geological and Geophysical Survey of the Mid-Atlantic Ridge near 31 degrees N, the Petrov Fracture Zone
Kim D. Klitgord, Leonard V. Dmitriev, John F. Casey, Sergei Silantiev, Kevin Johnson
1993, Open-File Report 1994-007
IntroductionIn February 1989, the first formal U.S.-Soviet joint marine geologic-geophysical study in 10 years was undertaken along the Mid-Atlantic Ridge near 31°N on the 12th Cruise of the RN Akademik Boris Petrov of the Vernadsky Institute of Geochemistry (USSR Academy of Sciences, Moscow). This survey was initiated as part of...
Factors influencing the distribution of blackchin tilapia Sarotherodon melanotherodon (Osteichthyes: Cichlidae) in the Indian River system, Florida
Dawn P. Jennings, J.D. Williams
1993, Northeast Gulf Science (12) 111-117
The blackchin tilapia, Sarotherodon melanotheron, was first collected from the Indian River system, in Brevard County, Florida, in 1980. Since its introduction, this species has expanded its range northward along the coast approximately 37 km, to just north of Whites Point, Brevard County, and southward about 68 km to Vero...
Answering questions about desert tortoises: a guide for people who work with the public
K.H. Berry
1993, Book
No abstract available at this time...
Modeling the response of native steelhead to hatchery supplementation programs in an Idaho River
Alan Byrne, T.C. Bjornn, J.D. McIntyre
1993, North American Journal of Fisheries Management (12) 62-78
A life history model was used to predict the response of native steelhead Oncorhynchus mykiss in the Lochsa River, Idaho, to long-term supplementation with hatchery fry and smolts. The four key factors affecting the response of the native fish to a stocking program were (1) the number of native spawners,...
Deep hydraulic fracturing stress measurements in the KTB (Germany) and Cajon Pass (USA) Scientific Drilling Projects: A summary
J. Baumgartner, J. H. Healy, F. H. Rummel, Mark D. Zoback
1993, Conference Paper, 7th ISRM Congress
The determination of in situ stresses along deep vertical profiles was declared a key issue for two scientific deep drilling projects:the German Continental Deep Drilling Project (KTB) situated in northeast Bavaria in an area of complex variscian thrust tectonics andthe CAJON PASS Project, located only about 4 km from...
Precipitation-chemistry measurements from the California Acid Deposition Monitoring Program, 1985-1990
Charles L. Blanchard, Kathy A. Tonnessen
1993, Atmospheric Environment (27) 1755-1763
The configuration of the California Acid Deposition Monitoring Program (CADMP) precipitation network is described and quality assurance results summarized. Comparison of CADMP and the National Acid Deposition Program/National Trends Network (NADP/NTN) data at four parallel sites indicated that mean depth-weighted differences were less than 3 μeq ℓ−1 for all ions,...
Effects of horizontal velocity variations on ultrasonic velocity measurements in open channels
E.D. Swain
1992, Water-Resources Investigations Report 91-4200
Use of an ultrasonic velocity meter to determine discharge in open channels involves measuring the velocity in a line between transducers in the stream and relating that velocity to the average velocity in the stream. The standard method of calculating average velocity in the channel assumes that the velocity profile...
Effects of dried wastewater-treatment sludge application on ground-water quality in South Dade County, Florida
Barbara Howie
1992, Water-Resources Investigations Report 91-4135
Four test fields in the south Dade agricultural area were studied to determine the effects of sludge application on ground-water quality. Two fields had been cultivated for 10 years or more, and two had not been farmed for at least 10 years. The fields were representative of the area's two...
Hydrogeology and Migration of Septic-Tank Effluent in the Surficial Aquifer System in the Northern Midlands Area, Palm Beach County, Florida
Wesley L. Miller
1992, Water-Resources Investigations Report 91-4175
The northern Midlands area in Palm Beach County is an area of expected residential growth, but its flat topography, poor drainage, and near-surface marl layers retard rainfall infiltration and cause frequent flooding. Public water supplies and sewer services are not planned for the area, thus, residents must rely on domestic...
Water resources data Maryland and Delaware, water year 1992, Volume 1. Surface-water data
R.W. James, R.H. Simmons, B.F. Strain, J.F. Hornlein
1992, Water Data Report MD-DE-92-1
No abstract available....
Water resources data Maryland and Delaware, water year 1992, Volume 2: Ground-water data
R.W. James, M.J. Smigaj
1992, Water Data Report MD-DE-92-2
No abstract available....
Food preferences of spring-migrating blue-winged teal in southwestern Louisiana
Scott W. Manley, W.L. Hohman, J.L. Moore, David Richard
1992, Proceedings of the Annual Conference of the Southeastern Association of Fish and Wildlife Agencies 46-56
We studied effects of pair status, molt intensity, and year on food selection by migrating male blue-winged teal (Anas discors) in southwestern Louisiana during springs 1990 and 1991. Diets consisted primarily of animal foods; but plant material, consisting mostly of seeds, comprised as much as 44%. There was no difference...
Chapter 4: Cretaceous thrusting and Neogene block rotation in the northern Portneuf Range region, southeastern Idaho
Karl S. Kellogg
1992, Memoir of the Geological Society of America (179) 95-113
The Putnam thrust has long been recognized as an important Mesozoic structure in the northern Portneuf Range, southeastern Idaho. At most localities, the thrust places Ordovician rocks above Permian and Pennsylvanian rocks, although near its southeastern extent, it ramps laterally downsection to the southeast. At its southeasternmost exposures, Cambrian rocks...
A theoretical model for the flux of radon from rock to ground water
Richard B. Wanty, Errol P. Lawrence, Linda C. Gundersen
1992, GSA Special Papers (271)
A model is derived to predict the abundance of 222Rn in ground water in contact with a rock of known uranium content. The model assumes that secular equilibrium is attained in the rock-water system as a whole, but is independent of any microscopic geometric properties of the system. The key...
American swallow-tail kite
J. Allen, Wayne Norling
1992, Louisiana Conservationist (44) 29-30
No abstract available...
Knowledge-based GIS: An expert system approach for managing wetlands
Wei Ji, James B. Johnston, Marcia McNiff, Loyd C. Mitchell
1992, Geo Info Systems (10) 60-64
No abstract available...
Analyzing vegetation dynamics of land systems with satellite data
Jeffery C. Eidenshink, Robert H. Haas
1992, Geocarto International (7) 53-61
Large area assessment of vegetation conditions is a major requirement for understanding the impact of weather on food, fiber, and forage production. The distribution of vegetation is largely associated with climate, terrain characteristics, and human activity. The interpretation of vegetation dynamics from satellite data can be improved by stratifying the...
A postulated new source for the White River Ash, Alaska: A section in Geologic studies in Alaska by the US. Geological Survey, 1990
Robert G. McGimsey, Donald H. Richter, Gregory D. DuBois, T. P. Miller
1992, Bulletin 1999
The White River Ash (Lerbekmo and others, 1968), product of two of the most voluminous pyroclastic eruptions in North America in the past 2,000 yr, blankets much of the Yukon Terrtory, Canada, and a small part of adjoining eastern Alaska. Lerbekmo and Campbell (1969) narrowed the source of the ash...
Tracing watershed weathering reactions with 13C
Carol Kendall, M.A. Mast, Karen C. Rice
1992, Conference Paper, Proceedings of the 7th International Symposium on Water-Rock Interaction: WRI-7
No abstract available....
Toxicity of agricultural subsurface drainwater from the San Joaquin Valley, California to juvenile chinook salmon and striped bass
Michael K. Saiki, Mark R. Jennings, Raymond H. Wiedmeyer
1992, Transactions of the American Fisheries Society (121) 78-93
Juvenile chinook salmon Oncorhynchus tshawytscha (40-50 mm total length, TL) and striped bass Morone saxatilis (30-40 mm TL) were exposed to serial dilutions (100, 50, 25, and 12.5%) of agricultural subsurface drainwater (WWD), reconstituted drainwater (RWWD), and reconstituted seawater (IO). Agricultural subsurface drainwater contained naturally elevated concentrations of major ions...