Skip to main content
U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Results

68919 results.

Alternate formats: RIS file of the first 3000 search results  |  Download all results as CSV | TSV | Excel  |  RSS feed based on this search  |  JSON version of this page of results

Page 2077, results 51901 - 51925

Show results on a map

Publication Extents

Not all publications have extents, not all extents are completely accurate
Ground-water resources and geology of Dodge County, Wisconsin
R.W. DeVaul, C.A. Harr, J.J. Schiller
1983, Wisconsin Geological & Natural History Survey Information Circular 44
The ground-water resources of Dodge County were evaluated to aid planners in meeting the needs resulting from growth in population and industry. The sand-and-gravel, Silurian dolomite, Galena-Platteville, and sandstone aquifers are the principal sources of ground water. Probable well yields from the sand- and-gravel aquifer and the Galena-Platteville aquifer range...
Trends in ground-water levels in Wisconsin through 1981
R.M. Erickson, R. D. Cotter
1983, Wisconsin Geological & Natural History Survey Information Circular 43
Hydrographs of ground-water levels in Wisconsin display fluctuations in the potentiometric surface of confined and unconfined aquifers. The graphs are plotted from periodic (weekly or monthly) measurements and from continuous recording gage records. Two hundred and ten hydrographs having periods of record of at least 5 years between 1934 and...
Geohydrologic framework of the Roswell ground-water basin, Chaves and Eddy Counties, New Mexico
G. E. Welder
1983, Technical Report 42
This report describes the geohydrology of the Roswell ground-water basin and shows the long-term hydrostatic-head changes in the aquifers. The Roswell ground-water basin consists of a carbonate artesian aquifer overlain by a leaky confining bed, which, in turn is overlain by an alluvial water-table aquifer. The water-table aquifer is hydraulically...
Reconnaissance of the quality of surface water in the Weber River basin, Utah
Kendall R. Thompson
1983, Technical Publication 76
This report on the reconnaissance of surface-water quality in the Weber River basin was prepared by the U.S. Geological Survey in cooperation with the Utah Department of Natural Resources, Division of Water Rights. The purposes of the reconnaissance were: (1) To obtain information on the general inorganic chemical characteristics of...
Reconnaissance of ground water in vicinity of Wichita Mountains southwestern Oklahoma
John S. Havens
1983, Circular 85
Urbanization and industrial growth have increased demands on water supplies in the vicinity of the Wichita Mountains in southwestern Oklahoma. The principal city, Lawton, uses surface water, supplemented by small quantities of ground water from the Arbuckle Group (Cambrian-Ordovician), for industrial and recreational use. During periods of drought, surface-water supplies...
Additions of nutrients and major ions by the atmosphere and tributaries to nearshore waters of northwestern Lake Huron
Bruce A. Manny, R.W. Owens
1983, Journal of Great Lakes Research (9) 403-420
Nutrient additions by the atmosphere and six tributaries to nearshore waters of northwestern Lake Huron were measured at weekly intervals from August 1975 to July 1976. The atmosphere contributed 43% of the nitrogen (N) and 10% of the phosphorus (P) that was added during the year. The 1975–76 atmospheric loading...
Distribution and ecology of marine turtles in waters off the southeastern United States
T. H. Fritts, W. Hoffman, M.A. McGehee
1983, Journal of Herpetology (17) 327-344
Aerial surveys of marine waters up to 222 km from shore in the Gulf of Mexico and nearby Atlantic Ocean suggest that marine turtles are largely distributed in waters less than 100 m in depth. The loggerhead turtle (Caretta caretta) was observed nearly 50 times as often in waters off...
Organochlorine residues in Atlantic coast black-crowned night-heron eggs, 1979
T. W. Custer, C.M. Bunck, T. E. Kaiser
1983, Colonial Waterbirds (6) 160-167
Eggs of Black-crowned Night-Herons (Nycticorax nycticorax) were collected in 1979 from two colonies in North Carolina, two colonies in Rhode Island, and one colony in Massachusetts. Mean concentrations of DDE and PCBs were higher in the New England samples than in those from North Carolina, Mean concentrations of organochlorine contaminants...
Organochlorine residues in common tern eggs from nine Atlantic coast colonies, 1980
T. W. Custer, R.M. Erwin, C. Stafford
1983, Colonial Waterbirds (6) 197-204
In 1980, 178 Common Tern (Sterna hirundo) eggs were collected in nine colonies from Rhode Island to North Carolina and were analyzed for organochlorines. DDE and PCBs were detected in most of the eggs. Mean concentrations of DDE and PCBs differed among colonies and seemed related to local...
Fifty-ninth Christmas Bird Count. 176. Ocean City, Md
C.S. Robbins
1983, American Zoologist (23) 129
Some organophosphorus insecticides have been reported to interfere with reproduction and even cause the decline of small mammal populations. The effects of such anticholinesterases on plasma LH concentrations were examined in male mice (Peromyscus leucopus noveboracensis) intubated with water (OW) or acephate (50 and 100 mg/kg) and sacrificed after...
Elevated DDE and toxaphene residues in fishes and birds reflect local contamination in the lower Rio Grande Valley, Texas
Donald H. White, C. A. Mitchell, H.D. Kennedy, A. J. Krynitsky, M. A. Ribick
1983, Southwestern Naturalist (28) 325-333
A potential organochlorine pesticide problem was identified near Mission, Texas, by the National Pesticide Monitoring Program. Fish samples from this site have consistently contained elevated levels of DDE since 1968. Surveys were made in 1976, 1978, and 1979 to determine the extent of organochlorine pesticide contamination in fishes and birds...
Late summer food habits of three heron species in northeastern Louisiana
K. R. Niethammer, M.S. Kaiser
1983, Colonial Waterbirds (6) 148-153
Yellow-crowned Night-Herons (Nycticorax violaceus), Little Blue Herons (Egretta caerulea), and Green-backed Herons (Butorides striatus) collected in northeastern Louisiana from July-September 1980 exhibited different diets. Yellow-crowned Night-Herons fed mostly on crayfish (74% by weight) and Green-backed Herons fed primarily on fish (93% by weight). The diet of Little Blue...
Azodrin poisoning of waterfowl in rice fields in Louisiana
Donald H. White, C. A. Mitchell, E. J. Kolbe, W.H. Ferguson
1983, Journal of Wildlife Diseases (19) 373-375
During the period 2-4 April 1981 about 100 birds, mostly ducks and geese, were found dead and dying in a rice field near Sweet Lake, Calcasieu Parish, Louisiana. Fresh specimens were collected to determine the cause of mortality. Birds were placed individually in polyethylene freezer bags, tagged, and frozen soon...
Factors affecting the distribution of mallards wintering in the Mississippi Alluvial Valley
James D. Nichols, Kenneth J. Reinecke, James E. Hines
1983, The Auk (100) 932-946
The Mississippi Alluvial Valley (MAV) is the principal wintering area for Mallards (Anas platyrhynchos) in the Mississippi Flyway. Here, we consider it a distinct habitat (sensu Fretwell 1972), i.e. fitness is relatively homogeneous among ducks within the MAV but different from that of ducks in other such habitats....
Distribution of submersed aquatic macrophytes in the tidal Potomac River
G.M. Haramis, V. Carter
1983, Aquatic Botany (15) 65-79
Results of a 3-year survey (1978?1980) and review of historic trends have shown a major decline in the number of species and the distribution of submersed aquatic macrophytes in the tidal Potomac River since the early 1900's. The freshwater tidal river is essentially devoid of plants and only very sparse...
Response of American black ducks to dietary uranium: A proposed substitute for lead shot
Susan D. Haseltine, Louis Sileo
1983, Journal of Wildlife Management (47) 1124-1129
Lead (Pb) shot has been associated with mortality in waterfowl (Trainer and Hunt 1965, Anderson 1975, Stout and Cornwell 1976) and other avian species (Benson et al. 1974, Kaiser et al. 1980, Pattee et al. 1981). Bellrose (1959) indicated that between 2 and 3% of waterfowl populations may be lost...
Osmoregulatory function in ducks following ingestion of the organophosphorus insecticide fenthion
Barnett A. Rattner, W. James Fleming, H. C. Murray
1983, Pesticide Biochemistry and Physiology (20) 246-255
Salt gland function and osmoregulation in aquatic birds drinking hyperosmotic water has been suggested to be impaired by organophosphorus insecticides. To test this hypothesis, adult black ducks (Anas rubripes) were provided various regimens of fresh or salt (1.5% NaCl) water before, during, and after ingestion of mash containing 21 ppm...