Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Length of stay, survival, habitat use and migration characteristics of fall migrant Soras on the Patuxent River marsh as determined by radio telemetry Length of stay, survival, habitat use and migration characteristics of fall migrant Soras on the Patuxent River marsh as determined by radio telemetry
No abstract available.
Authors
G. Michael Haramis, Gregory D. Kearns
Campsite survey implications for managing designated campsites at Great Smoky Mountains National Park Campsite survey implications for managing designated campsites at Great Smoky Mountains National Park
Backcountry campsites and shelters in Great Smoky Mountains National Park were surveyed in 1993 as part of a new impact monitoring program. A total of 395 campsites and shelters were located and assessed, including 309 legal campsites located at 84 designated campgrounds, 68 illegal campsites, and 18 shelters. Primary campsite management problems identified by the survey include: (1)...
Authors
J. L. Marion, Y.-F. Leung
Effects of contaminants on Double-crested Cormorant reproduction in Green Bay, Wisconsin, USA Effects of contaminants on Double-crested Cormorant reproduction in Green Bay, Wisconsin, USA
In 1994 and 1995, Double-crested Cormorants Phalacrocorax auritus were monitored from egg-laying through 12 days of age at Cat Island, Green Bay, Wisconsin, USA. Sample eggs at hatching were analysed for organochlorines (including total PCBs, PCB congeners, and DDE), hepatic microsomal ethoxyresorufin-O-dealkylase (EROD) activity in livers of embryos, and eggshell thickness. The number...
Authors
T. W. Custer, Christine M. Custer, K. L. Stromborg, M. J. Melancon
Windrow composting as an effective method to dispose of large numbers of fish Windrow composting as an effective method to dispose of large numbers of fish
During July 1998, at the USGS Leetown Science Center, Kearneysville, West Virginia, an epizootic occurred in 16-month-old Atlantic salmon (Salmo salar). The cause ofmortality was diagnosed as furunculosis, a serious disease in salmonid fishes caused by the bacterium Aeromonas salmonicida. The fish were being maintained as part ofongoing research and were held in uncovered 30-m-Iong...
Authors
L.C.I. Tabb, C. E. Starliper, E. B. Shotts, J. Everson, A.W. Palmisano
New seismic images of the cascadia subduction zone from cruise SO 108-ORWELL New seismic images of the cascadia subduction zone from cruise SO 108-ORWELL
In April and May 1996, a geophysical study of the Cascadia continental margin off Oregon and Washington was conducted aboard the German R/V Sonne. This cooperative experiment by GEOMAR and the USGS acquired wide-angle reflection and refraction seismic data, using ocean-bottom seismometers (OBS) and hydrophones (OBH), and multichannel seismic reflection (MCS) data. The main goal of this...
Authors
E.R. Flueh, M. A. Fisher, J. Bialas, J.R. Childs, D. Klaeschen, Nina Kukowski, T. Parsons, D.W. Scholl, Uri S. ten Brink, A.M. Trehu, N. Vidal
Evidence for growth hormone/insulin-like growth factor I axis regulation of seawater acclimation in the euryhaline teleost Fundulus heteroclitus Evidence for growth hormone/insulin-like growth factor I axis regulation of seawater acclimation in the euryhaline teleost Fundulus heteroclitus
The ability of ovine growth hormone (oGH), recombinant bovine insulin-like growth factor I (rbIGF-I), recombinant human insulin-like growth factor II (rhIGF-II), and bovine insulin to increase hypoosmoregulatory capacity in the euryhaline teleostFundulus heteroclituswas examined. Fish acclimated to brackish water (BW, 10 ppt salinity, 320 mOsm/kg H2O) were injected with a single dose of...
Authors
J. M. Mancera, S. D. McCormick
Control of furunculosis and enteric redmouth disease in sea-run Atlantic salmon broodstock in the Connecticut and Merrimack Rivers Control of furunculosis and enteric redmouth disease in sea-run Atlantic salmon broodstock in the Connecticut and Merrimack Rivers
Adult sea‐run Atlantic salmon Salmo salar captured and transported to Richard Cronin National Salmon Station (Sunderland, Massachusetts), Nashua National Fish Hatchery (Nashua, New Hampshire), and Whittemore State Fish Hatchery (Waterford, Connecticut) during 1986–1992 were treated with oxolinic acid and a bacterin. The bacterin was developed against furunculosis and enteric redmouth...
Authors
L.A. Ford, P.A. Barbash, R. C. Cipriano
Paleozoic orogens in New England, USA Paleozoic orogens in New England, USA
Stratigraphy and isotope geochronology in the crystalline core of the Appalachians suggest revised interpretations of the extent, nature and timing of Paleozoic orogens in New England. Five major episodes of magmatism, deformation, and high-grade regional metamorphism are recognized: Taconian (455-442 Ma), Acadian (423-385 Ma), Neo-Acadian (366-350 Ma), Late Pennsylvanian (300-290 Ma)...
Authors
Peter Robinson, Robert D. Tucker, Dwight Bradley, H. N. Berry, P. H. Osberg
Studies on the bacterial flora of native freshwater bivalves from the Ohio River Studies on the bacterial flora of native freshwater bivalves from the Ohio River
No abstract available.
Authors
C. E. Starliper, R. Villella, P. Morrison, J. Mathias
A comparison of triploid induction validation techniques A comparison of triploid induction validation techniques
Triploidy induction is a technique that allows genetic manipulation of chromosome number to control reproduction and potentially create faster‐growing animals; however, most methods for inducing polyploidy are not 100% effective. Using sunshine bass (white bass Morone chrysops ♀ × striped bass M. saxatilis ♂) as a model, we cross‐validated the most common verification techniques: DNA...
Authors
R.M. Harrell, W. Van Heukelem, J.H. Kerby
An inter-comparison test of an RD Instruments' workhorse ADCP mounted in a new trawl-resistant bottom mount, an RD instruments' broadband ADCP and Vector measuring current meter An inter-comparison test of an RD Instruments' workhorse ADCP mounted in a new trawl-resistant bottom mount, an RD instruments' broadband ADCP and Vector measuring current meter
No abstract available.
Authors
M. Martini, P. Clay
Fish communities and their relation to physical and chemical characteristics of streams from selected environmental settings in the Lower Susquehanna River basin, 1993-95 Fish communities and their relation to physical and chemical characteristics of streams from selected environmental settings in the Lower Susquehanna River basin, 1993-95
Studies of fish-community composition were conducted annually in selected reaches (from 100 to 303 meters in length) on seven streams from June 1993 to June 1995 within the Lower Susquehanna River Basin. In 1994, additional reaches were selected on three of the streams, resulting in a total of 28 samples. The study reaches were selected on the basis of type of bedrock and land use/land...
Authors
Michael D. Bilger, Robin A. Brightbill