Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10365
Contributions of Henry Weed Fowler (1878-1965), with a brief early history of ichthyology at the Academy of Natural Sciences of Philadelphia Contributions of Henry Weed Fowler (1878-1965), with a brief early history of ichthyology at the Academy of Natural Sciences of Philadelphia
Abstract not supplied at this time
Authors
W. F. Smith-Vaniz, R.M. Peck
Control of pest species: Tree shelters help protect seedlings from nutria Control of pest species: Tree shelters help protect seedlings from nutria
Various methods of nutria preventative techniques were tested in attempts to curb the loss of seedlings due to nutria capturing. The results of testing possibly indicate that tree shelters have real potential for use in forest restoration projects on sites with moderate nutria populations. Tree shelters may even prove effective on sites with high nutria populations, as long as...
Authors
J. A. Allen, R. Boykin
Carcinogens and cancers in freshwater fishes Carcinogens and cancers in freshwater fishes
Epizootics of neoplasms in freshwater fish species are considered in relation to circumstantial and experimental evidence that suggest that some epizootics of neoplasia of hepatocellular, cholangiocellular, epidermal, and oral epithelial origin may be causally related to contaminant exposure. Although there is concern for the safety of consuming fish affected with neoplasms, this concern...
Authors
John J. Black, Paul C. Baumann
Contaminated sediments from tributaries of the Great Lakes: Chemical characterization and carcinogenic effects in medaka (Oryzias latipes) Contaminated sediments from tributaries of the Great Lakes: Chemical characterization and carcinogenic effects in medaka (Oryzias latipes)
Sediments from four inshore industrial sites and a reference site in the Great Lakes were extracted with organic solvents to produce a crude extract, which was separated on alumina into two fractions: predominantly polycyclic aromatic hydrocarbons; and predominantly nitrogencontaining polycyclic aromatic compounds. Crude extracts were redissolved in acetone and analyzed by gas...
Authors
John M. Besser, Christopher J. Schmitt, John C. Harshbarger, Paul H. Peterman, Jon A. Lebo
The influence of ambient salinity on routine metabolism in the teleost Cyprinodon variegatus Lacepède The influence of ambient salinity on routine metabolism in the teleost Cyprinodon variegatus Lacepède
Routine metabolism of the euryhaline cyprinodontid Cyprinodon variegatus Lacepede was measured at a series of ambient salinities ranging from fresh water through 100‰. Fish used had been sequentially acclimated to the test salinities (ambient temperature of 20±1° C and a 12: 12 L: D schedule). Routine metabolic rates were highest at ambient salinities from 15 to 50‰. Metabolism was...
Authors
F.G. Nordlie, S. J. Walsh, D. C. Haney, T.F. Nordlie
The impact of debris on the Florida manatee The impact of debris on the Florida manatee
The endangered Florida manatee ingests debris while feeding. From 1978 through 1986, 439 salvaged manatees were examined. Debris was in the gastrointestinal tract of 63 (14.4%) and four died as a direct result of debris ingestion. Monofilament fishing line was the most common debris found (N=49). Plastic bags, string, twine, rope, fish hooks, wire, paper, cellophane, synthetic sponges...
Authors
C.A. Beck, N.B. Barros
Low-flow characteristics of streams in North Carolina Low-flow characteristics of streams in North Carolina
No abstract available.
Authors
G. L. Giese, Mason
Water resources data, South Carolina, water year 1990 Water resources data, South Carolina, water year 1990
No abstract available.
Authors
C.S. Bennett, T.W. Cooney, K.H. Jones, P.A. Conrads
Water resources data Texas, water year 1990, volume 2. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins Water resources data Texas, water year 1990, volume 2. San Jacinto River basin, Brazos River basin, San Bernard River basin, and intervening coastal basins
No abstract available.
Authors
H.D. Buckner, W.J. Shelby
Water-quality data from continuously monitored sites in the Pamlico and Neuse River estuaries, North Carolina, 1989-90 Water-quality data from continuously monitored sites in the Pamlico and Neuse River estuaries, North Carolina, 1989-90
Beginning in April 1989, water quality measurements were made at six sites in or near Pamlico River estuary and at five sites in or near the Neuse River estuary. Measurements taken at 15-minute intervals included near-surface and near-bottom specific conductance; near-surface water temperature; and near-surface, mid-depth, and near-bottom dissolved-oxygen concentrations. Water-quality...
Authors
Ronald G. Garrett, Jerad Bales
Chemometric comparison of polychlorinated biphenyl residues and toxicologically active polychlorinated biphenyl congeners in the eggs of Forster's Terns (Sterna fosteri) Chemometric comparison of polychlorinated biphenyl residues and toxicologically active polychlorinated biphenyl congeners in the eggs of Forster's Terns (Sterna fosteri)
The separation and characterization of complex mixtures of polychlorinated biphenyls (PCBs) is approached from the perspective of a problem in chemometrics. A technique for quantitative determination of PCB congeners is described as well as an enrichment technique designed to isolate only those congener residues which induce mixed aryl hydrocarbon hydroxylase enzyme activity. A congener...
Authors
Ted R. Schwartz, David L. Stalling
Reproduction in a Western Smooth Earth Snake (Virginia valeriae elegans) from Western Kentucky Reproduction in a Western Smooth Earth Snake (Virginia valeriae elegans) from Western Kentucky
Abstract not supplied at this time
Authors
M.A. Morris, S. J. Walsh