Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10365
Contraction scour at a bridge over Wolf Creek, Iowa Contraction scour at a bridge over Wolf Creek, Iowa
Contraction scour at the State Highway 14 bridge over Wolf Creek in south-central Iowa was caused by a large flood on September 14 and 15, 1992. The bridge is a 30.5-m, single-span steel structure supported by vertical-wall concrete abutments with wingwalls. Approximately 6 meters of scour resulted from the flood. The peak discharge was estimated by water-surface profile analysis to be 2...
Authors
Edward E. Fischer
North American box turtles (Terrapene) listed under CITES Appendix II North American box turtles (Terrapene) listed under CITES Appendix II
Abstract not supplied at this time
Authors
C.K. Dodd
Reptiles and amphibians in the endangered longleaf pine ecosystem Reptiles and amphibians in the endangered longleaf pine ecosystem
The Coastal Plain of the southeastern United States contains a rich diversity of reptiles and amphibians (herpetofauna). Of the 290 species native to the Southeast, 170 (74 amphibians, 96 reptiles) are found within the range of the remnant longleaf pine (Pinus palustris) ecosystem (Fig. 1). Many of these species are not found elsewhere, particularly those amphibians that require...
Authors
C. Kenneth Dodd
United States Geological Survey, programs in South Carolina United States Geological Survey, programs in South Carolina
No abstract available.
Authors
Water Resources Division U.S. Geological Survey
A survey of recent results in passive sampling of water and air by semipermeable membrane devices A survey of recent results in passive sampling of water and air by semipermeable membrane devices
A survey is presented of some recent results for passive sampling of water and air for trace organic contaminants using lipid-filled semipermeable membrane devices (SPMDs). Results of water sampling for trace organochlorine compounds using simultaneously exposed SPMDs and the most universally applied biomonitor (bivalves) are discussed. In general, the total amounts of accumulated...
Authors
Harry F. Prest, James N. Huckins, Jimmie D. Petty, Sirpa Herve, Jaakko Paasivirta, Pertti Heinonen
Acute toxicity of ammonia (NH3-N) in sewage effluent to Chironomus riparius: II. Using a generalized linear model Acute toxicity of ammonia (NH3-N) in sewage effluent to Chironomus riparius: II. Using a generalized linear model
Toxicity of un-ionized ammonia (NH3-N) to the midge, Chironomus riparius was compared, using laboratory culture (well) water and sewage effluent (≈0.4 mg/L NH3-N) in two 96-h, static-renewal toxicity experiments. A generalized linear model was used for data analysis. For the first and second experiments, respectively, LC50 values were 9.4 mg/L (Test 1A) and 6.6 mg/L (Test 2A) for ammonia...
Authors
D.P. Monda, D.L. Galat, S.E. Finger, M.S. Kaiser
Population biology of the Florida manatee: An overview Population biology of the Florida manatee: An overview
In the following overview we discuss progress toward meeting the three objectives of the 1992 workshop: to provide a synthesis of existing information about manatee population biology; to evaluate the strengths and weaknesses of current data sets and approaches to research on manatee population biology; and to provide recommendations for research. We discuss progress in six topics that...
Authors
Thomas J. O'Shea, B.B. Ackerman
Amphibians Amphibians
Amphibians are ecologically important in most freshwater and terrestrial habitats in the United States: they can be numerous, function as both predators and prey, and constitute great biomass. Amphibians have certain physiological (e.g., permeable skin) and ecological (e.g., complex life cycle) traits that could justify their use as bioindicators of environmental health. For example...
Authors
R. Bruce Bury, P. Stephen Corn, C. Kenneth Dodd, Roy W. McDiarmid, Norman J. Scott
Etheostoma (Ulocentra) scotti (OSTEICHTHYS: PERCIDAE), a new darter from the Etowah River system in Georgia Etheostoma (Ulocentra) scotti (OSTEICHTHYS: PERCIDAE), a new darter from the Etowah River system in Georgia
Abstract not supplied at this time
Authors
B.H. Bauer, D.A. Etnier, N.M. Burkhead
Species-specifc patterns of hyperostis in marine teleost fishes Species-specifc patterns of hyperostis in marine teleost fishes
Abstract not supplied at this time
Authors
W. F. Smith-Vaniz, L.S. Kaufman, J. Glowacki