Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16733
Epidermal tumors of rainbow smelt with associated virus Epidermal tumors of rainbow smelt with associated virus
Epithelial tumors of the skin occurred in landlocked populations of rainbow smelt (Osmerus mordax) in several lakes in New Hampshire (USA) during the spawning runs. Histologically, these were noninvasive epithelial cell lesions. Herpesvirus-like particles could be seen in the nucleus and cytoplasm. The lesions occurred in both males and females. Prevalence, which varied annually, was as...
Authors
R. L. Herman, C.N. Burke, S. Perry
Comparative behaviour and dietary effects in early life phases of American sturgeons Comparative behaviour and dietary effects in early life phases of American sturgeons
Experiments were conducted with the larvae and early juveniles of three species of sturgeon to determine effects of diet and development on swimming and foraging behaviour as well as depth distribution in 100-L aquaria. About 500 hatchlings were placed in each tank with two or three replicates of three or six diet treatments, including live and dry feeds. Eight types of swimming or...
Authors
R. M. Ross, R. M. Bennett
Contaminant exposure, biochemical, and histopathological biomarkers in white suckers from contaminated and reference sites in the Sheboygan River, Wisconsin Contaminant exposure, biochemical, and histopathological biomarkers in white suckers from contaminated and reference sites in the Sheboygan River, Wisconsin
Fish populations of the lower Sheboygan River, located in east-central Wisconsin, are considered impaired under the Great Lakes Water Quality Agreement between the United States and Canada. Pollutants in the Sheboygan River system include: polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), and heavy metals. This study compared general health and biochemical...
Authors
C.S. Schrank, S.M. Cormier, V. S. Blazer
Absorption of dietary dieldrin by striped bass Absorption of dietary dieldrin by striped bass
No abstract available.
Authors
C.R. Santerre, V. S. Blazer, N. Khanna, R.E. Reinert, F.T. Barrows
Growth of red drum, Sciaenops ocellatus, to maturity on experimental diets Growth of red drum, Sciaenops ocellatus, to maturity on experimental diets
Red drum, Sciaenops ocellatus, were raised from juveniles averaging 2.5 g to adults averaging 6.1 kg. Growth rates with simple experimental starter and grower feeds were similar to those with one of the best-performing commercial starter feeds for marine fish. Over the size range of 4.3-2,243 g, experimental feed cost per unit of growth gradually increased from $0.88/kg to $ 1.54/kg live...
Authors
J. W. Tucker, W.A. Lellis, G. K. Vermeer, D. E. Roberts, P. N. Woodward
Digital geologic map and mineral deposits of the Lake Superior region: Minnesota, Wisconsin, Michigan Digital geologic map and mineral deposits of the Lake Superior region: Minnesota, Wisconsin, Michigan
No abstract available.
Authors
W.F. Cannon, T. H. Kress, D. M. Sutphin, G. B. Morey, Joyce Meints
Mapping the sea floor geology offshore of the New York-New Jersey metropolitan area using sidescan-sonar: Preliminary report Mapping the sea floor geology offshore of the New York-New Jersey metropolitan area using sidescan-sonar: Preliminary report
No abstract available.
Authors
William C. Schwab, W. Corso, M. A. Allison, B. Butman, J. F. Denny, L. Lotto, W. W. Danforth, D.S. Foster, T.F. O’Brien, D. A. Nichols, B.J. Irwin, K. F. Parolski
Water-quality assessment of the Lower Susquehanna River Basin, Pennsylvania and Maryland: Design and implementation of water-quality studies, 1992-95 Water-quality assessment of the Lower Susquehanna River Basin, Pennsylvania and Maryland: Design and implementation of water-quality studies, 1992-95
From 1992 through 1995, nearly 1,200 water-quality samples from about 500 sites were collected, processed, and analyzed for the U.S. Geological Survey's (USGS) National Water-Quality Assessment (NAWQA) Program in the Lower Susquehanna River Basin in Pennsylvania and Maryland. Sites were selected and samples were collected for 28 integrated water-quality studies designed to provide a...
Authors
Steven F. Siwiec, Robert A. Hainly, Bruce D. Lindsey, Michael D. Bilger, Robin A. Brightbill
Herbicide concentrations in and loads transported by the Conestoga River and Pequea Creek, Lancaster County, Pennsylvania, 1992-95 Herbicide concentrations in and loads transported by the Conestoga River and Pequea Creek, Lancaster County, Pennsylvania, 1992-95
Water samples were collected from four streams in Lancaster County from 1992 through 1995 and analyzed for selected herbicides. Samples were collected from the Little Conestoga Creek near Churchtown, Mill Creek (a tributary to the Conestoga River) at Elshelman Mill Road near Lyndon, the Conestoga River at Conestoga, and Pequea Creek at Martic Forge. Most samples were collected from...
Authors
Lloyd A. Reed, Edward H. Koerkle, Charles S. Takita
Metals, pesticides, and semivolatile organic compounds in sediment in Valley Forge National Historical Park, Montgomery County, Pennsylvania Metals, pesticides, and semivolatile organic compounds in sediment in Valley Forge National Historical Park, Montgomery County, Pennsylvania
The Schuylkill River flows through Valley Forge National Historical Park in Lower Providence and West Norriton Townships in Montgomery County, Pa. The concentration of selected metals, pesticides, semivolatile organic compounds, and total carbon in stream-bottom sediments from Valley Forge National Historical Park were determined for samples collected once at 12 sites in and around the...
Authors
Andrew G. Reif, Ronald A. Sloto
Modified level II streambed-scour analysis for structure I-70-35-5245 crossing Big Walnut Creek in Putnam County, Indiana Modified level II streambed-scour analysis for structure I-70-35-5245 crossing Big Walnut Creek in Putnam County, Indiana
Level II scour evaluations follow a process in which hydrologic, hydraulic, and sedimenttransport data are evaluated to calculate the depth of scour that may result when a given discharge is routed through a bridge opening. The results of the modified Level II analysis for structure 1-70-35-5245 on Interstate 70 crossing Big Walnut Creek in Pumam.County, Indiana, are presented. The site...
Authors
B.A. Robinson, D. C. Voelker, R. L. Miller