Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 9967
Plant community structure in an oligohaline tidal marsh
An oligohaline tidal marsh on the northern shore of Lake Pontchartrain, LA was characterized with respect to the distributions and abundances of plant species over spatial and temporal gradients using Detrended Correspondence Analysis (DCA). In addition, the species distributions were correlated to several physical environmental factors using Detrended Canonical Correspondence Analysis (DCCA). The
Authors
J.S. Brewer, J.B. Grace
National water summary 1987: Hydrologic events and water supply and use
Water use in the United States, as measured by freshwater withdrawals in 1985, averaged 338,000 Mgal/d (million gallons per day), which is enough water to cover the 48 conterminous States to a depth of about 2.4 inches. Only 92,300 Mgal/d, or 27.3 percent of the water withdrawn, was consumptive use and thus lost to immediate further use; the remainder of the withdrawals (72.7 percent) was return f
By
Water Resources Mission Area, Water Availability and Use Science Program, Central Midwest Water Science Center, Dakota Water Science Center, Kansas Water Science Center, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center
Water resources data, North Carolina, water year 1989
Water resources data for the 1989 water year for North Carolina consists of records of stage, discharge and water quality of streams; stage and contents of lakes and reservoirs; and ground-water levels. This report contains discharge records for 178 gaging stations and stage and contents for 26 lakes and reservoirs; water quality for 26 gaging stations and 10 miscellaneous sites; continuous daily
Authors
B.C. Ragland, R.G. Barker, W.H. Eddins, A.J. Padyk, J.F. Rinehardt
Water resources data, South Carolina, water year 1989
No abstract available.
Authors
C.S. Bennett, T.W. Cooney, K.H. Jones, B.W. Church, G.L. Murray
Modeling coastal Louisiana's vulnerability to oil and toxic chemical spills
No abstract available.
Authors
Floyd O. Stayner, James B. Johnston, James D. Scurry
Streamside habitats in southern forested wetlands: Their role and implications for management
The value of streamside forests to fish and wildlife and the influence of forest management on their value have been recognized in a general sense for decades. However, in today’s climate of increasing environmental regulation and intensive forest management, there is need for more detailed understanding of the value of streamside forests to fish and wildlife. Dickson and Huntley (1987:38) describ
Authors
Rebecca J. Howard, James A. Allen
Modeling bottomland forest and wildlife habitat changes in Louisiana's Atchafalaya Basin
No abstract available.
Authors
Michael S. Brody, William H. Conner, L. Pearlstine, Wiley M. Kitchens
Sensitivity of endemic Snake River cutthroat trout to acidity and elevated aluminum
Acidic episodes in waters of the western USA, do not last as long and are not as intense as those in the eastern USA, but we found that the native western cutthroat trout Oncorhynchus clarki is sensitive to even brief reductions in pH. In laboratory studies, fish were exposed to acidity (pH 4.5–6.5) alone or in the presence of aluminum during the first 7 d of the freshly fertilized egg, eyed embry
Authors
D. F. Woodward, Aïda M. Farag, M.E. Mueller, E. E. Little, F. A. Vertucci
Analysis of fish bile with HPLC — fluorescence to determine environmental exposure to benzo(a)pyrene
Brown bullhead from the Black River, Ohio, have a high incidence of liver neoplasia which is associated with elevated concentrations of polynuclear aromatic hydrocarbons (PAHs) in the sediment. We evaluated the use of biliary concentrations of benzo(a)pyrene [B(a)P] equivalents as a means for determining PAH exposure. Bile was collected from 16 brown bullheads and 8 common carp taken from each of
Authors
Eric P. Johnston, Paul C. Baumann
Comparison of aquifer storage coefficients computed using anisotropic and isotropic analytical models
No abstract available.
Authors
Vicente Quinones-Aponte
Trends in wintering canvasback populations at Catahoula Lake, Louisiana
Aerial survey data (1968-1989) and water gauge readings (1958-1989) were examined to detennine trends in and relationships between canvasback (Aythya valisineria) populations and water levels at Catahoula Lake, Louisiana. Wintering canvasback populations at Catahoula Lake have increased over the past 21 years. A peak population estimate of 78,000 canvasbacks was recorded in January 1988. There was
Authors
Dennis W. Woolington, James W. Emfinger