Publications
Read publications and other informational products to learn more about USGS science occurring in the Mississippi Basin.
Filter Total Items: 5583
Fishes of the night. Part 2. The weakly electric gymnotoids Fishes of the night. Part 2. The weakly electric gymnotoids
Abstract not supplied at this time
Authors
L.G. Nico
A Systematic Revision of the Neotropical Catfish Family Ageneiosidae (Teleostei: Ostariophysi: Siluriformes) A Systematic Revision of the Neotropical Catfish Family Ageneiosidae (Teleostei: Ostariophysi: Siluriformes)
Abstract not supplied at this time
Authors
S. J. Walsh
Suggestions to authors of the reports of the United States Geological Survey Suggestions to authors of the reports of the United States Geological Survey
Suggestions to Authors (STA) is used as the writing style guide for the U.S. Geological Survey (USGS) technical reports and maps. The STA is widely distributed in paper outside of the USGS as a basic scientific writing style guide for scientists, students, and editors. The goal of STA is to help writers present information as clearly as possible explaining punctuation rules, suggesting...
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 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
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
Relocation, repatriation, and translocation of amphibians and reptiles: Are they conservation strategies that work? Relocation, repatriation, and translocation of amphibians and reptiles: Are they conservation strategies that work?
Abstract not supplied at this time
Authors
C.K. Dodd, R.A. Seigel
National water summary 1988–89 — Hydrologic events and floods and droughts National water summary 1988–89 — Hydrologic events and floods and droughts
National Water Summary 1988-89 - Hydrologic Events and Floods and Droughts documents the occurrence in the United States, Puerto Rico, and the U.S. Virgin Islands of two types of extreme hydrologic events floods and droughts on the basis of analysis of stream-discharge data. This report details, for the first time, the areal extent of the most notable floods and droughts in each State...
By
Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center, Utah Water Science Center, Dakota Water Science Center, Central Midwest Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center, Central Plains Water Science Center