The role of water exchange between a stream channel and its hyporheic zone in nitrogen cycling at the terrestrial-aquatic interface
F.J. Triska, J.H. Duff, R.J. Avanzino
1993, Hydrobiologia (251) 167-184
The subsurface riparian zone was examined as an ecotone with two interfaces. Inland is a terrestrial boundary, where transport of water and dissolved solutes is toward the channel and controlled by watershed hydrology. Streamside is an aquatic boundary, where exchange of surface water and dissolved solutes is bi-directional and flux...
Sediment resuspension, redeposition, and focusing in a small dimictic reservoir
W.F. James, J.W. Barko
1993, Canadian Journal of Fisheries and Aquatic Sciences (50) 1023-1028
Rates of seston (dry mass) sedimentation, estimated from sediment traps (ST rates) and sediment cores (SC rates), were determined at four water depths to examine seasonal and annual sedimentation patterns in Eau Galle Reservoir, Wisconsin (USA). Annual ST rates overestimated annual SC rates at water depths less-than-or-equal-to 4 m, suggesting...
A geochemical atlas of North Carolina, USA
J.C. Reid
1993, Journal of Geochemical Exploration (47) 11-27
A geochemical atlas of North Carolina, U.S.A., was prepared using National Uranium Resource Evaluation (NURE) stream-sediment data. Before termination of the NURE program, sampling of nearly the entire state (48,666 square miles of land area) was completed and geochemical analyses were obtained.The NURE data are applicable to mineral exploration, agriculture,...
Constraints in the hot-dry-rock resources of the united states
John Sass, Marianne Guffanti
Anon, editor(s)
1993, Conference Paper, Transactions - Geothermal Resources Council
As with hydrothermal systems, the western U.S has higher HDR potential overall than the eastern U.S. because geothermal gradients on average are higher in the west. Nevertheless, some attractive exploration targets occur in the eastern U.S. The most favorable target in the eastern U.S. (defined here to include the Great...
Morphometric differentiation of American shad and white sucker eggs from riverine samples
R. M. Ross, R. M. Bennett
1993, Journal of Freshwater Ecology (8) 121-125
We developed a statistical method to distinguish the large demersal eggs of American shad from those of white sucker in riverine samples using egg morphometric analysis. Eggs were first screened by total diameter in deionized water according to ranges reported in the published literature. Differences in relative yolk...
Use of chemistry and stable sulfur isotopes to determine sources of trends in sulfate of Colorado lakes
J.T. Turk, K. Campbell, N.E. Spahr
1993, Water, Air, & Soil Pollution (67) 415-431
The chemistry of lakes in the Mt. Zukel Wilderness Area (MZWA) and the Weminuche Wilderness Area (WWA) of Colorado has been monitored since 1985. The initial results indicate that changes have occurred in the chemistry of some lakes in both areas. Increased concentration of sulfate in lakes may be related...
Gas buildup in Lake Nyos, Cameroon: The recharge process and its consequences
William C. Evans, G.W. Kling, M. L. Tuttle, G. Tanyileke, L. D. White
1993, Applied Geochemistry (8) 207-221
The gases dissolved in Lake Nyos, Cameroon, were quantified recently (December 1989 and September 1990) by two independent techniques: in-situ measurements using a newly designed probe and laboratory analyses of samples collected in pre-evacuated stainless steel cylinders. The highest concentrations of CO2 and CH4 were...
Distribution of stable isotopes in ground water in the Rialto-Colton basin, California
Linda R. Woolfenden
1993, Conference Paper, Management of Irrigation and Drainage Systems : Integrated Perspectives
Since 1982, imported water originating in the Sierra Nevada has been used to recharge the Rialto-Colton ground-water basin, about 100 km east of Los Angeles. Stable isotopes of oxygen (oxygen-18) and hydrogen (deuterium) were used to determine the disposition of artificially recharged, imported water within the basin. Delta oxygen-18 ratios...
Geohydrologic systems in Kansas — Geohydrology of the lower aquifer unit in the western interior plains aquifer system
L. J. Combs, Cristi V. Hansen, R. J. Wolf
1993, Hydrologic Atlas 722-I
No abstract available....
Interactions between ground water and wetlands, southern shore of Lake Michigan, USA
Robert J. Shedlock, Douglas A. Wilcox, Todd A. Thompson, David A. Cohen
1993, Journal of Hydrology (141) 127-155
Wetlands between, and within, dune-beach complexes along the south shore of Lake Michigan are strongly affected by ground water. The hydrogeology of the glacial drift aquifer system in a 26 km2 area was investigated to determine the effects of ground water on the hydrology and hydrochemistry of Cowles Bog and its...
The role of permafrost and seasonal frost in the hydrology of northern wetlands in North America
M.-K. Woo, Thomas C. Winter
1993, Journal of Hydrology (141) 5-31
Wetlands are a common landscape feature in the Arctic, Subarctic, and north Temperate zones of North America. In all three-zones, the occurrnce of seasonal frost results in similar surface-water processes in the early spring. For example, surface ice and snow generally melt before the soil frost thaws, causing melt water...
Stable isotope enrichment in paleowaters of the southeast Atlantic coastal plain, United States
Niel Plummer
1993, Science (262) 2016-2020
Paleowaters from the Floridan aquifer system in the southeastern Atlantic coastal plain have higher D/H and 18O/16O ratios than local Holocene ground water. Maximum...
Evaluation of the extent of contaminated sediments in the west branch of the Grand Calumet river, Indiana-Illinois, USA
R.A. Cahill, M.T. Unger
1993, Conference Paper, Water Science and Technology
The extent of contamination in river sediments is often not rigorously evaluated. In many cases, only surface sediment samples are taken. In other cases, entire sediment cores are composited for analysis, an approach that limits the ability to identify discrete zones of contamination. In addition, few studies include information on...
Duck nest success on Conservation Reserve Program land in the prairie pothole region
H.A. Kantrud
1993, Journal of Soil and Water Conservation (48) 238-242
Habitat fragmentation from intensified farming has concentrated nesting waterfowl and their predators in the remaining, relatively small untitled habitats of the prairie pothole region in the United States. The areas of land that have been enrolled in the Conservation Reserve Program (CRP) in this area could help disperse these concentrations...
Crude oil in a shallow sand and gravel aquifer—I. Hydrogeology and inorganic geochemistry
P.C. Bennett, D.E. Siegel, M.J. Baedecker, M. F. Hult
1993, Applied Geochemistry (8) 529-549
Changes in the distribution of inorganic solutes in a shallow ground water contaminated by crude oil document a series of geochemical reactions initiated by biodegradation of the oil. Upgradient of an oil body floating on the water table, oxidation of oil to carbonic acid dissolves carbonate minerals in the aquifer...
Least tern and piping plover nesting at sand pits in Nebraska
John G. Sidle, E.M. Kirsch
1993, Colonial Waterbirds (16) 139-148
Endangered Least Terns (Sterna antillarum) and threatened Piping Plovers (Charadrius melodus) nest at commercial sand and gravel mining operations (sand pits) along the Platte River system in Nebraska. Sandbar habitat has been disappearing since the early 1900's along the Platte River system, but numbers of sand pits have increased. We...
Population structure, body mass, activity, and orientation of an aquatic snake (Seminatrix pygaea) during a drought
C.K. Dodd Jr.
1993, Canadian Journal of Zoology (71) 1281-1288
The snout – vent length, tail length, weight, sex, activity, and orientation of a population of swamp snakes (Seminatrix pygaea) in north – central Florida were recorded from 1985 through 1990. A small temporary pond was monitored for 1343 days, using a drift fence – pitfall trap sampling regime. I...
Water resources data, Connecticut, water year 1992
M.A. Cervione Jr., B.S. Davies III, J.R. Bohr, B.W. Hunter
1993, Water Data Report CT-92-1
Water resources data for the 1992 water year for Connecticut consist of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels of ground-water wells. Specifically, it contains: (1) discharge records for 44 streamflow-gaging stations, and for 1 tidal...
Observations on sexing and aging ducks using wings
Samuel M. Carney
1993, Report
This report presents information on the development, testing, and limitations of procedures described in the report titled: "Species, age and sex identification of ducks using wing plumage" (Carney 1992). Studies of duck wings begin in 1958 led to the development of most of these procedures (Carney and Geis 1960, Carney...
Reconnaissance investigation of water quality, bottom sediment, and biota associated with irrigation drainage in the Pine River Project area, Southern Ute Indian Reservation, southwestern Colorado and northwestern New Mexico, 1988-89
D. L. Butler, R. P. Krueger, B. C. Osmundson, A. L. Thompson, J. J. Formea, D. W. Wickman
1993, Water-Resources Investigations Report 92-4188
During 1988-89, water, bottom sediment, biota, soil, and plants were sampled for a reconnaissance investigation of the Pine River Project area in southwestern Colorado. Irrigation drainage does not seem to be a major source of dissolved solids in streams. Concentrations of manganese, mercury, and selenium exceeded drinking-water regulations in some...
Continuous flow measurements using fixed ultrasonic meters
Rick Oltmann
1993, Interagency Ecological Program Newsletter (Summer 1993) 4-4
USGS has or soon will be installing four continuous flow-monitoring stations in the delta that will use ultrasonic velocity meters (DVM). Funding for the stations has been provided by USGS, DWR, USBR, and Contra Costa Water District....
Survival, habitat use, and movements of female northern pintails radio-marked in the Suisun Marsh, California. Final Report, National Fish and Wildlife Foundation and California Waterfowl Association
M. R. Miller, D.L. Orthmeyer, Michael L. Casazza, M.R. McLandress, D.P. Connelly
1993, Report
No abstract available at this time...
Probabalistic projections for recovery of the endangered Cui-ui
John M. Emlen, Thomas A. Strekal, Chester C. Buchanan
1993, North American Journal of Aquaculture (13) 467-474
The cui-ui Chamistes cujus, a lake sucker found in only Pyramid Lake, Nevada, is listed as endangered under the U.S. Endangered Species Act, and a recovery plan has been formulated in an effort to save it. We used a population simulation model that incorporated environmental stochasticity in water availability to...
Using a GIS to link digital spatial data and the precipitation-runoff modeling system, Gunnison River Basin, Colorado
William A. Battaglin, Gerhard Kuhn, Randolph S. Parker
1993, Conference Paper, Proceedings of the Second international conference/workshop on Integrating geographic information systems and environmental modeling
The U.S. Geological Survey Precipitation-Runoff Modeling System, a modular, distributed-parameter, watershed-modeling system, is being applied to 20 smaller watersheds within the Gunnison River basin. The model is used to derive a daily water balance for subareas in a watershed, ultimately...
Spawning and rearing habitat use by white sturgeons in the Columbia River downstream from McNary Dam
Michael J. Parsley, Lance G. Beckman, George T. McCabe Jr.
1993, Transactions of the American Fisheries Society (122) 217-227
Spawning and rearing habitats used by white sturgeons Acipenser transmontanuswere described from water temperature, depth, and velocity measurements and substrate types present at sites where eggs, larvae, young-of-the-year, and juveniles (ages 1–7) were collected. Spawning and egg incubation occurred in the swiftest water available (mean water column velocity, 0.8–2.8 m/s),...
