Skip to main content
U.S. flag

An official website of the United States government

Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10420

Long-term growth enhancement of baldcypress (Taxodium distichum) from municipal wastewater application Long-term growth enhancement of baldcypress (Taxodium distichum) from municipal wastewater application

Tree ring analysis was used to document the long-term effects of municipal wastewater on the growth rate of baldcypress (Taxodium distichum (L.) Rich.]. The study site, a swamp in St. Martin Parish, Louisiana, has received municipal wastewater for the last 40 years. Growth chronologies from 1920 to 1992 were developed from cross-dated tree core samples taken from treated and control...
Authors
I.D. Hesse, J.W. Day, T.W. Doyle

Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks Common and scientific names of aquatic invertebrates from the United States and Canada: Mollusks

This edition of Common and Scientific Names of Invertebrates from the United States and Canada: Mollusks represents the efforts of 15 molluscan taxonomic specialists in compiling a comprehensive checklist of the mollusks found in North America and Canada and their vernacular names. Built upon the success of the first edition, the authors have updated the nomenclature to reflect recent...
Authors
D. D. Turgeon, J.F. Quinn, A.E. Bogan, E. V. Coan, F.G. Hochberg, W.G. Lyons, P. M. Mikkelsen, R. J. Neves, C. F. E. Roper, G. Rosenberg, B. Roth, A. Scheltema, F.G. Thompson, M. Vecchione, J.D. Williams

Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test Assessing sediment toxicity from navigational pools of the Upper Mississippi River using a 28-day Hyalella azteca test

To assess the extent of sediment contamination in the Upper Mississippi River (UMR) system after the flood of 1993, sediment samples were collected from 24 of the 26 navigational pools in the river and from one site in the Saint Croix River in the summer of 1994. Whole-sediment tests were conducted with the amphipod Hyalella azteca for 28 days measuring the effects on survival, growth...
Authors
N.E. Kemble, E.L. Brunson, T.J. Canfield, F.J. Dwyer, C.G. Ingersoll

Toxic equivalency factors (TEFs) for PCBs, PCDDs, PCDFs for humans and wildlife Toxic equivalency factors (TEFs) for PCBs, PCDDs, PCDFs for humans and wildlife

An expert meeting was organized by the World Health Organization (WHO) and held in Stockholm on 15-18 June 1997. The objective of this meeting was to derive consensus toxic equivalency factors (TEFs) for polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) and dioxinlike polychlorinated biphenyls (PCBs) for both human, fish, and wildlife risk assessment. Based on existing...
Authors
M. Van den Berg, L. Birnbaum, A. T. C. Bosveld, B. Brunstrom, P. Cook, M. Feeley, J. P. Giesy, A. Hanberg, R. Hasegawa, S. W. Kennedy, T. Kubiak, J. C. Larsen, F. X. R. Van Leeuwen, A. K. D. Liem, C. Nolt, R. E. Peterson, L. Poellinger, S. Safe, D. Schrenk, Donald E. Tillitt, M. Tysklind, M. Younes, F. Waern, T. Zacharewski

Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95 Water quality in the Ozark Plateaus, Arkansas, Kansas, Missouri, and Oklahoma, 1992-95

This report is intended to summarize major findings that emerged between 1992 and 1995 from the water-quality assessment of the Ozark Plateaus Study Unit and to relate these findings to water-quality issues of regional and national concern. The information is primarily intended for those who are involved in water-resource management. Yet, the information contained here may also interest...
Authors
James C. Petersen, James C. Adamski, Richard W. Bell, Jerri V. Davis, Suzanne R. Femmer, David A. Freiwald, Robert L. Joseph

Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri Riparian-vegetation controls on the spatial pattern of stream-channel instability, Little Piney Creek, Missouri

The role of riparian vegetation is assessed quantitatively by using a five-decade record of valley bottom vegetation and channel dynamics developed from historical aerial photography. A 12-kilometer reach of a typical Ozarks stream was mapped using aerial photographs from 1938, 1948, 1955, 1965, 1976, and 1989; maps were then analyzed in a digital geographic information system. Analysis...
Authors
Robert B. Jacobson, Aaron L. Pugh

Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach Assessing sediments from Upper Mississippi River navigational pools using a benthic invertebrate community evaluation and the sediment quality triad approach

Benthic invertebrate samples were collected from 23 pools in the Upper Mississippi River (UMR) and from one station in the Saint Croix River (SCR) as part of a study to assess the effects of the extensive flooding of 1993 on sediment contamination in the UMR system. Sediment contaminants of concern included both organic and inorganic compounds. Oligochaetes and chironomids constituted...
Authors
T.J. Canfield, E.L. Brunson, F.J. Dwyer, C.G. Ingersoll, N.E. Kemble

Computed discharges at five sites in lower Laguna Madre near Port Isabel, Texas, June 1997 Computed discharges at five sites in lower Laguna Madre near Port Isabel, Texas, June 1997

The Texas Water Development Board (TWDB), Texas Parks and Wildlife Department (TPWD), and Texas Natural Resource Conservation Commission (TNRCC) are charged by the Texas Legislature with determining freshwater inflows required to maintain the ecological health of streams, bays, and estuaries in Texas. To determine required inflows, the three agencies collect data and conduct studies on...
Authors
Jeffrey W. East, R.S. Solis, D.J. Ockerman

Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States Source and transport of desethylatrazine and desisopropylatrazine to groundwater of the midwestern United States

Based on usage of the parent compounds and studies of their dissipation in corn fields, atrazine (6-chloro-N-ethyl-N'-(1-methylethyl-1,3,5-triazine-2,4-diamine)), cyanazine (2-[[4-chloro-6-(ethylamino)-1,3,5-triazin-2-yl]amino]-2-methylpropionitrile), and simazine (6-chloro-N,N'diethyl-1,3,5-triazine-2,4-diamine) are thought to be the important contributors of desethylatrazine (6-chloro...
Authors
E.M. Thurman, D.W. Kolpin, D. A. Goolsby, M. T. Meyer
Was this page helpful?