Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16786
Louisiana coastal GIS network: Graphical user interface for access to spatial data
Louisiana's coastal wetlands support a large percentage of the nation's seafood and fur industries, vast deposits of oil and natural gas, habitat for thousands of species of plants and animals, winter nesting grounds and migratory paths for numerous waterfowl, and many recreational resources enjoyed by residents and tourists. Louisiana's wetlands also have the highest rates of coastal erosion and
Authors
Matteson Hiland, Randolph A. McBride, Donald Davis, Dewitt Braud, Henry Streiffer, Farrell Jones, Anthony Lewis, S. Williams
Late quaternary geologic framework, north-central Gulf of Mexico
The geologic framework of the north-central Gulf of Mexico shelf is composed of multiple, stacked, delta systems. Shelf and nearshore sedimentary facies were deposited by deltaic progradation, followed by shoreface erosion and submergence. A variety of sedimentary facies has been identified, including prodelta, delta fringe, distributary, lagoonal, barrier island, and shelf sand sheet. This study
Authors
Jack L. Kindinger, Shea Penland, S. Jeffress Williams, Gregg R. Brooks, John R. Suter, Randolph A. McBride
Seroepidemiology of leptospirosis in Minnesota wolves
Serum samples (n = 457) from wolves (Canis lupus) in northern Minnesota were collected from 1972 through 1986 and were tested for antibodies against Leptospira interrogans using a microtiter agglutination test. Twelve serovars included in the study were: australis, autumnalis, ballum, bataviae, bratislava, canicola, copenhageni, grippotyphosa, hardjo, pomona, pyrogenes, and tarassovi. Fifty-two (1
Authors
M.A. Khan, S.M. Goyal, S.L. Diesch, L. D. Mech, S. H. Fritts
Isolation and phenotypic characterization of an oxidase-negative Aeromonas salmonicida causing furunculosis in coho salmon (Oncorhynchus kisutch)
An oxidase-negative Aeromonas salmonicida was isolated from coho salmon (Oncorhynchus kisutch) suffering from an epizootic of furunculosis at the state hatchery near Belfair, Washington. Typical, oxidase-positive A. salmonicida was isolated concurrently from the same population of fish. Mortality was controlled with medicated feed treatments. Evidence supporting the identification of the two types
Authors
P.F. Chapman, R.C. Cipriano, J.D. Teska
S-layer positive motile aeromonads isolated from channel catfish
Motile aeromonads are ubiquitous aquatic bacteria that can cause motile aeromonad septicemia (MAS), a disease which affects channel catfish and can produce significant economic loss. Motile aeromonads isolated from commercially-raised channel catfish were screened for production of S-layer protein in order to evaluate its potential role in natural epizootics. The S-layer protein was produced by 14
Authors
L.A. Ford
Effects of maternal and grandmaternal nutrition on deer mass and vulnerability to wolf predation
In a Minnesota ecosystem, mass of female white-tailed deer (Odocoileus virginianus) fawns and adults, and survival of adult females in the face of wolf (Canis lupus) predation, were directly related to maternal nutrition during gestation. Mass of single male fawns produced by 2-year-old females, and survival of yearlings to 2 years of age were related directly to the nutrition of their grandmother
Authors
L. D. Mech, M.E. Nelson, R.E. McRoberts
National Water-Quality Assessment Program; The Lower Susquehanna River basin
In 1991, the U.S. Geological Survey (USGS) began to implement a full-scale National Water-Quality Assessment (NAWQA) program. The three major objectives of the NAWQA program are to provide a consistent description of current waterquality conditions for a large part of the Nation's water resources, define long-term trends in water quality, and identify, describe, and explain the major factors that
Authors
K. J. Breen, R.A. Hainly, S. A. Hoffman
Hydrogeology and ground-water flow in the carbonate rocks of the Little Lehigh Creek basin, Lehigh County, Pennsylvania
The Little Lehigh Creek basin is underlain mainly by a complex assemblage of highly-deformed Cambrian and Ordovician carbonate rocks. The Leithsville Formation, Allentown Dolomite, Beekmantown Group, and Jacksonburg Limestone act as a single hydrologic unit. Ground water moves through fractures and other secondary openings and generally is under water-table conditions. Median annual ground-water d
Authors
R. A. Sloto, L.D. Cecil, L.A. Senior
Geology, geophysics, and geochronology of the Manson impact structure
A problem with the impact hypothesis for the Cretaceous/Tertiary (K/T) mass extinction is the apparent absence of an identifiable impact site. The Manson impact structure is a candidate site because of its size (the largest such structure recognized in the United States); in addition, the largest and most abundant shocked quartz grains at the K/T boundary are found relatively close by, and its age
Authors
Jack B. Hartung, Michael J. Kunk, R. R. Anderson
Current state of pollutants in the world ocean
No abstract available.
Authors
A.V. Tsyban, R. N. Sambrotto, P.F. Roscigno
Seismic interpretation of gas hydrates in the Blake Ridge Area: Natural gas research and development
No abstract available.
Authors
William P. Dillon
Paleogeography and Paleo-oceanography of the Miocene of the southeastern United States
No abstract available.
Authors
P. Popenoe