Publications
Publications from USGS science centers throughout the Southeast Region.
Filter Total Items: 10365
Rainfall-soil moisture relations in landslide-prone areas of a tropical rain forest, Puerto Rico Rainfall-soil moisture relations in landslide-prone areas of a tropical rain forest, Puerto Rico
Soil moisture conditions are not well documented in steep, tropical landslide-prone terrain. In the 11,330 ha Caribbean National Forest (CNF) in northeastern Puerto Rico more than 170 landslides that occurred from one to approximately 60 years ago have been mapped. Most of these landslides are shallow, with failure depths of 0.5 ot 7 m, and are associated with periods of intense...
Authors
Matthew C. Larsen, Angel J. Torres-Sanchez
Behavioral indicators of sublethal toxicity in rainbow trout Behavioral indicators of sublethal toxicity in rainbow trout
Four measures of behavior-spontaneous swimming activity, swimming capacity, feeding behavior, and vulnerability to predation-were assessed as indicators of sublethal toxicity in rainbow trout (Oncorhynchus mykiss) in 96-hr exposures to sublethal concentrations of six agricultural chemicals: carbaryl, chlordane, dimethylamine salt of 2,4-dichlorophenoxyacetic acid (2,4-DMA), tributyl
Authors
Edward E. Little, Richard D. Archeski, Boris A. Flerov, Vera I. Kozlovskaya
Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record Eocene-Oligocene sea-level changes on the New Jersey coastal plain linked to the deep-sea record
We use magnetostratigraphy and Sr-isotope stratigraphy to improve stratigraphic control for the Eocene to Oligocene of the New Jersey coastal plain (ACGS4 borehole). Magnetostratigraphy in many cases is complicated in outcrop sections of shallow-water (
Authors
Kenneth G. Miller, Dennis V. Kent, Andrew N. Brower, Laurel M. Bybell, Mark D. Feigenson, Richard K. Olsson, Richard Z. Poore
A computer program for GEOphysical log data MANagement and plotting (GEOMAN) A computer program for GEOphysical log data MANagement and plotting (GEOMAN)
No abstract available.
Authors
I. E. Arroyo, Sigfredo Torres-Gonzalez, Ramon A. Carrasquillo
Caretta rafinesque, loggerhead sea turtles Caretta rafinesque, loggerhead sea turtles
No abstract available.
Authors
C.K. Dodd
Current tank useful for observing small stream fishes Current tank useful for observing small stream fishes
Abstract not supplied at this time
Authors
N.M. Burkhead, J.D. Williams
Research on the Okaloosa darter focuses on competition and habitat use Research on the Okaloosa darter focuses on competition and habitat use
Abstract not supplied at this time
Authors
N.M. Burkhead, J.D. Williams
Automatic tracer-dilution method used for stage-discharge ratings and streamflow hydrographs on small Iowa streams Automatic tracer-dilution method used for stage-discharge ratings and streamflow hydrographs on small Iowa streams
An automatic system was designed to concurrently measure stage and discharge for the purpose of developing stage-discharge ratings and high flow hydrographs on small streams. Stage, or gage height, is recorded by an analog-to-digital recorder and discharge is determined by the constant-rate tracer-dilution method The system measures flow above a base stage set by the user. To test the
Authors
P. J. Soenksen
Water-resources potential of the freshwater lens at Key West, Florida Water-resources potential of the freshwater lens at Key West, Florida
The island of Key West lies at the end of the Florida Keys, about 150 miles southwest of Miami. The public-water supply for the island is provided by the Florida Keys Aqueduct Authority Well Field near Miami. However, there are many privately owned wells on the island that tap the local fresh ground-water lens for potable and nonpotable water supply. The number of people who use water...
Authors
D.J. McKenzie