Toxicity of contaminated sediments in dilution series with control sediments
M.K. Nelson, P.F. Landrum, G.A. Burton Jr., S.J. Klaine, E.A. Crecelius, T.D. Byl, Duane C. Gossiaux, V.N. Tsymbal, L. Cleveland, Christopher G. Ingersoll, G. Sasson-Brickson
1993, Chemosphere (27) 1789-1812
The use of dilutions has been the foundation of our approach for assessing contaminated water, and accordingly, it may be important to establish similar or parallel approaches for sediment dilutions. Test organism responses to dilution gradients can identify the degree of necessary sediment alteration to reduce the toxicity. Using whole...
Comparison of episodic acidification of Mid-Atlantic Upland and Coastal Plain streams
Anne K. O’Brien, Karen C. Rice, Margaret M. Kennedy, Owen P. Bricker
1993, Water Resources Research (29) 3029-3039
Episodic acidification was examined in five mid-Atlantic watersheds representing three physiographic provinces: Coastal Plain, Valley and Ridge, and Blue Ridge. Each of the watersheds receives a similar loading of atmospheric pollutants (SO42− and NO3−) and is underlain by different bedrock type. The purpose of this research was to quantify and compare...
Acid Rain
Owen P. Bricker, Karen C. Rice
1993, Annual Review of Earth and Planetary Sciences (21) 151-174
Acid deposition, or acid rain as it is more commonly referred to, has become a widely publicized environmental issue in the U.S. over the past decade. The term usually conjures up images of fish kills, dying forests, "dead" lakes, and damage to monuments and other historic artifacts. The primary cause...
Uptake of planar polychlorinated biphenyls and 2,3,7,8-substituted polychlorinated dibenzofurans and dibenzo-p-dioxins by birds nesting in the lower Fox River and Green Bay, Wisconsin, USA
Gerald T. Ankley, Gerald J. Niemi, Keith B. Lodge, Hallett J. Harris, Donald L. Beaver, Donald E. Tillitt, Ted R. Schwartz, John P. Giesy, Paul D. Jones, Cynthia Hagley
1993, Archives of Environmental Contamination and Toxicology (24) 332-344
The uptake of persistent polychlorinated hydrocarbons (PCHs) by four avian species was investigated at upper trophic levels of two aquatic food chains of the lower Fox River and Green Bay, Wisconsin. Accumulation of total and specific planar polychlorinated biphenyls (PCBs), polychlorinated dibenzofurans (PCDFs), polychlorinated dibenzo-p-dioxin (PCDDs), and H411E rat hepatoma...
Ground-water hydrology of the upper Sevier River Basin, south-central Utah, and simulation of ground-water flow in the valley-fill in Panguitch Valley.
Susan A. Thiros, William C. Brothers
1993, Technical Publication 102
The ground-water hydrology of the upper Sevier River basin, primarily of the unconsolidated valley-fill aquifers, was studied from 1988 to 1989. Recharge to the valley-fill aquifers is mostly by seepage from surface-water sources. Changes in soil-moisture content am water levels were measured in Panguitch Valley both at a flood-irrigated and...
Use of mesocosm data to predict effects in aquatic ecosystems: Limits to interpretation: Chapter 16
Thomas W. La Point, James F. Fairchild
Robert L. Graney, James H. Kennedy, John H. Rodgers Jr., editor(s)
1993, Book chapter, Aquatic mesocosm studies in ecological risk assessment
Aquatic mesocosm studies are being used to refute a presumption of risk derived from laboratory toxicity tests conducted under the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA). Mesocosm studies incorporate many biological, chemical and physical characteristics of natural ecosystems. Hence, they serve as realistic surrogates of natural ecosystems and allow...
Challenges in real-time data collection at active volcanoes in the Pacific Northwest, the Philippines, and Alaska [abs.]
J.M. Dorava, B.A. May
1993, Book chapter, American Water Resources Association, Alaska Chapter Proceedings of 1993 Annual Conference
Coupled effects of vertical mixing and benthic grazing on phytoplankton populations in shallow, turbid estuaries
Jeffrey R. Koseff, Jacqueline K. Holen, Stephen G. Monismith, James E. Cloern
1993, Journal of Marine Research (51) 843-868
Coastal ocean waters tend to have very different patterns of phytoplankton biomass variability from the open ocean, and the connections between physical variability and phytoplankton bloom dynamics are less well established for these shallow systems. Predictions of biological responses to physical variability in these environments is inherently difficult because the...
1993 Annual Report: San Francisco estuary regional monitoring program for trace substances
B. Thompson, Jessica Lacy, Dane Hardin, Tom Grovhaug, K. Taberski, Alan D. Jassby, James E. Cloern, J. Caffrey, B. Cole, David H. Schoellhamer
1993, Report
This first annual report of the San Francisco Estuary Regional Monitoring Program contains the results of monitoring measurements made in 1993. Measurements of conventional water quality parameters and trace contaminant concentrations were made at 16 stations throughout the Estuary three times during the year: the wet period (March), during declining...
Research and education to improve surface and ground-water quality of a claypan soil--Proceedings of agricultural research to protect water quality
E.E. Alberts, D. W. Blevins, N. K. Kitchen, Tony Prato
1993, Conference Paper
No abstract available....
Organic carbon sources and sinks in San Francisco Bay: variability induced by river flow
Alan D. Jassby, T.M. Powell, James E. Cloern
1993, Marine Ecology Progress Series (95) 39-54
Sources and sinks of organic carbon for San Francisco Bay (California, USA) were estimated for 1980. Sources for the southern reach were dominated by phytoplankton and benthic microalgal production. River loading of organic matter was an additional important factor in the...
Map projections
Water Resources Division, U.S. Geological Survey
1993, Report
A map projection is used to portray all or part of the round Earth on a flat surface. This cannot be done without some distortion. Every projection has its own set of advantages and disadvantages. There is no "best" projection. The mapmaker must select the one best suited to the...
Global Change
Water Resources Division, U.S. Geological Survey
1993, Report
Global change is a relatively new area of scientific study using research from many disciplines to determine how Earth systems change, and to assess the influence of human activity on these changes. This teaching packet consists of a poster and three activity sheets. In teaching these activities four themes are...
Exploring maps
Water Resources Division, U.S. Geological Survey
1993, Report
Exploring Maps is an interdisciplinary set of materials on mapping for grades 7-12. Students will learn basic mapmaking and map reading skills and will see how maps can answer fundamental geographic questions: "Where am I?" "What else is here?" "Where am I going?"...
Digital Elevation Models
Water Resources Division, U.S. Geological Survey
1993, Data Users Guide 5
The Earth Science Information Center (ESIC) distributes digital cartographic/geographic data files produced by the U.S. Geological Survey (USGS) as part of the National Mapping Program. Digital cartographic data files may be grouped into four basic types. The first of these, called a Digital Line Graph (DLG), is the line map...
Complex interactions of multiple aquatic consumers: an experimental mesocosm manipulation
William B. Richardson, Stephen T. Threlkeld
1993, Canadian Journal of Fisheries and Aquatic Sciences (50) 29-42
In 7-m3 outdoor tanks filled with lake water, the presence/absence of omnivorous young-of-the- year Micropterus salmoides), zooplanktivorous Menidia beryllina , and herbivorous larval Hyla chrysocelis was experimentally manipulated. A cross-classified design was used to assess the interactive effects of these vertebrate consumers on the experimental food webs....
Earthquakes & Volcanoes, Volume 23, Number 6, 1992
Water Resources Division, U.S. Geological Survey
David W. Gordon, editor(s)
1993, Report
Earthquakes and Volcanoes is published bimonthly by the U.S. Geological Survey to provide current information on earthquakes and seismology, volcanoes, and related natural hazards of interest to both generalized and specialized readers....
The U.S. Board on Geographic Names publications catalog
Water Resources Division, U.S. Geological Survey
1993, Report
This catalog highlights the various publications produced by the BGN and summarizes their contents. Some of these publications are free; others are reasonably priced. All publications and their prices are on a separate price list included with this catalog. This price list will be updated as needed to reflect new...
Digital orthophotos
Water Resources Division, U.S. Geological Survey
1993, Report
A digital orthophoto is a digital image of an aerial photograph with displacements caused by the camera angle and the terrain removed. It, thus, combines the image characteristics of a photograph with the geometric qualities of a map....
Water Resources Data, New Jersey, Water Year 1992, Volume 2. Ground-Water Data
W.R. Bauersfeld, W.D. Jones, C.E. Gurney
1993, Water Data Report NJ-92-2
Water Resources data for the 1992 water year for New Jersey consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. Volume 2 contains records of ground-water levels from 225 wells...
Water Resources Data, New Jersey, Water Year 1992, Volume 1. Surface-Water Data
W.R. Bauersfeld, E.W. Moshinsky, C.E. Gurney
1993, Water Data Report NJ-92-1
Water resources data for the 1992 water year for New Jersey consists of records of stage, discharge, and water quality of streams; stage, contents, and water quality of lakes and reservoirs; and water levels and water quality of ground water. This volume of the report contains discharge records for 99...
The United States Geological Survey: A vision for the 21st century
Water Resources Division, U.S. Geological Survey
1993, Report
Leadership in Earth science for sustained global health, welfare, and prosperity. We envision a U.S. Geological Survey that is a global leader in relevant, innovative, and interdisciplinary Earth science. We shall conduct collaborative, impartial, multi-scale scientific investigations into the Earth's systems and conditions through a spectrum of basic to applied...
Distribution, abundance, and resting microhabitat of burbot on Julian's Reef, southwestern Lake Michigan
Thomas A. Edsall, Gregory W. Kennedy, William H. Horns
1993, Transactions of the American Fisheries Society (122) 560-574
We used a remotely operated submersible vehicle equipped with a color video camera to videotape the lake bed and document the distribution and abundance of burbot Lota lota on a 156‐hectare portion of Julianˈs Reef in southwestern Lake Michigan. The substrates and bathymetry of the study area had been mapped recently by...
Toxicity of sediments and pore water from Brunswick Estuary, Georgia
Parley V. Winger, Peter J. Lasier, Harvey Geitner
1993, Archives of Environmental Contamination and Toxicology (25) 371-376
A chlor-alkali plant in Brunswick, Georgia, USA, discharged >2 kg mercury/d into a tributary of the Turtle River-Brunswick Estuary from 1966 to 1971. Mercury concentrations in sediments collected in 1989 along the tributary near the chlor-alkali plant ranged from 1 to 27 μg/g (dry weight), with the highest concentrations found...
Environmental contaminants in canvasbacks wintering on San Francisco Bay, California
A.K. Miles, H. M. Ohlendorf
1993, California Fish and Game (79) 28-38
The concentrations of 11 trace elements, 21 organochlorines, 13 polycyclic aromatic hydrocarbons, and 13 aliphatic hydrocarbons were determined in canvasbacks (Aythya valisineria) wintering on San Francisco Bay, California during 1988. With the exception of Se, concentrations of potentially toxic elements were low. Similarly, concentrations of most organic compounds were near...
