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Publications

Publications from USGS science centers throughout the Southeast Region.

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Analysis of data from test-well sites along the downdip limit of freshwater in the Edwards Aquifer, San Antonio, Texas, 1985-87 Analysis of data from test-well sites along the downdip limit of freshwater in the Edwards Aquifer, San Antonio, Texas, 1985-87

Many researchers have studied the downdip limit of freshwater in the Edwards aquifer or various aspects of the saline-water zone and its relation to the freshwater zone. These studies were summarized and used to synthesize a consistent hydrologic and geochemical framework from which to interpret data from field studies. The concept derived from the previous work on the downdip limit of...
Authors
G.E. Groschen

National Water-Quality Assessment Program - South-Central Texas National Water-Quality Assessment Program - South-Central Texas

In 1991, the U.S. Geological Survey (USGS), Department of the Interior, began a National Water-Quality Assessment (NAWQA) Program. The long-term goals of the NAWQA Program are to describe the status of and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources and to identify the major natural and human factors that affect the quality of...
Authors
Water Resources Division U.S. Geological Survey

[Book review] Marine Mammals Ashore: A Field Guide for Strandings, by J. R. Geraci and V. J. Lounsbury [Book review] Marine Mammals Ashore: A Field Guide for Strandings, by J. R. Geraci and V. J. Lounsbury

Review of: Marine Mammals Ashore: A Field Guide for Strandings. J. R. Geraci and V. J. Lounsbury. 1993. Texas A&M University Sea Grant Publication TAMU-SG-93-601.
Authors
C.A. Beck

United States Geological Survey, programs in Texas United States Geological Survey, programs in Texas

Meteorologic and physiographic factors in parts of Texas combine to produce some of the most intense rainstorms in the Nation; these rainstorms cause severe, destructive floods somewhere in the State almost every year. A recent example is the catastrophic flooding in the Houston area in October 1994 that resulted in at least 22 deaths, hundreds of millions of dollars in property damage...
Authors
Water Resources Division U.S. Geological Survey

Hepatic cadmium, metal-binding proteins and bioaccumulation in bluegills exposed to aqueous cadmium Hepatic cadmium, metal-binding proteins and bioaccumulation in bluegills exposed to aqueous cadmium

We examined sublethal responses of juvenile bluegills Lepomis macrochirus to aqueous cadmium in two 28-d tests (test I, 0.0-8.4 μg Cd per liter; test II, 0.0-32.3 μg Cd per liter) in an intermittent-flow diluter. The experimental design was completely randomized, with two replicates in each of eight treatments (seven Cd exposures and one water control with 25 fish per replicate). Cadmium...
Authors
W.G. Cope, G.J. Atchison, J.G. Wiener

Cadmium, metal-binding proteins, and growth in bluegill (Lepomis macrochirus Cadmium, metal-binding proteins, and growth in bluegill (Lepomis macrochirus

We exposed juvenile bluegill (Lepomis macrochirus) to ~1000 mg∙L−1 of continuously suspended river sediment in a 28-d test with six treatments (randomized block with one sediment-free control and five sediments ranging from 1.3 to 21.4 μg Cd∙g dry weight−1). Each treatment had three replicates, each with 25 fish. Growth was reduced by exposure to suspended sediment, probably due to...
Authors
W. Gregory Cope, James G. Wiener, Mark T. Steingraeber, Gary J. Atchison
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