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Publications

Publications from USGS science centers throughout the Southeast Region.

Filter Total Items: 10362

Mortality estimates of striped bass caught in Albemarle Sound and Roanoke River, North Carolina Mortality estimates of striped bass caught in Albemarle Sound and Roanoke River, North Carolina

A statistical analysis of the age composition of striped bass Morone saxatilis harvested in Albemarle Sound and the Roanoke River, North Carolina. indicated that in 1988–1992 the population experienced a relatively high rate of total mortality. Age-3 and older fish were estimated to have been fully vulnerable to fishing mortality and to have experienced a total instantaneous mortality...
Authors
Robert M. Dorazio

Water resources data, South Carolina, water year 1995 Water resources data, South Carolina, water year 1995

No abstract available.
Authors
T.W. Cooney, P.A. Drewes, K.H. Jones, J.W. Gissendanner, B.W. Church

Using a geographic information system and scanning technology to create high-resolution land-use data sets Using a geographic information system and scanning technology to create high-resolution land-use data sets

A geographic information system (GIS) procedure was developed to compile low-altitude aerial photography, digitized data, and land-use data from U.S. Department of Agriculture Consolidated Farm Service Agency (CFSA) offices into a high-resolution (approximately 5 meters) land-use GIS data set. The aerial photography consisted of 35-mm slides which were scanned into tagged information...
Authors
Craig A. Harvey, Dana W. Kolpin, William A. Battaglin

Technology transfer opportunities : new development : new protocol verifies sterility of newly hatched fish Technology transfer opportunities : new development : new protocol verifies sterility of newly hatched fish

U.S. Geological Survey's Biological Resources Disicipline scientists have developed a procedure that could save commercial producers of triploid grass carp between $2000 and $3000 per pond. Since 1983, triploid grass carp have been commercially available for managing aquatic weeds that can cause water quality problems, replace native plants, or impede recreational and commercial use of...
Authors
J.A. Jenkins

A sexing technique for California Gulls breeding at Bamforth Lake, Wyoming (Una tecnica para determinar sexos en larus californicus reproduciendose en el Lago Bamforth, Wyoming) A sexing technique for California Gulls breeding at Bamforth Lake, Wyoming (Una tecnica para determinar sexos en larus californicus reproduciendose en el Lago Bamforth, Wyoming)

We used morphological characteristics to determine the sex of California Gulls (Larus californicus) nesting at Bamforth Lake, Wyoming. Using univariate and multivariate techniques, we evaluated sexual dimorphism in five external measurements taken from 614 California Gulls: bill length, bill depth, head-bill length, tarsus length, and body mass. Males were significantly larger than...
Authors
Bruce H. Pugesek

Interactions of mercury with dissolved organic carbon in the Florida Everglades Interactions of mercury with dissolved organic carbon in the Florida Everglades

There has been increased awareness by both public and scientific communities over mercury contamination of game fish in South Florida. Effective management strategies for dealing with this problem will require a more thorough understanding of the factors and processes that result in the generation and transport of mercury, and control its reactivity in the Everglades. The role of mercury
Authors
George R. Aiken, Michael M. Reddy
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