Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16905
Altitude and configuration of the potentiometric surface in Upper Elk Creek watershed, Chester County, Pennsylvania, January through June 1999 Altitude and configuration of the potentiometric surface in Upper Elk Creek watershed, Chester County, Pennsylvania, January through June 1999
No abstract available
Authors
Abdul Mohammad
Altitude and configuration of the potentiometric surface in Warwick and East Nantmeal townships, Chester County, Pennsylvania, July through December 1998 Altitude and configuration of the potentiometric surface in Warwick and East Nantmeal townships, Chester County, Pennsylvania, July through December 1998
No abstract available
Authors
Cynthia J. Rowland
Neophylax kolodskii (Trichoptera: Uenoidae), a new species from the Great Smoky Mountains National Park, U.S.A Neophylax kolodskii (Trichoptera: Uenoidae), a new species from the Great Smoky Mountains National Park, U.S.A
Neophylax kolodskii sp. n. from Great Smoky Mountains National Park is described and illustrated from adult specimens.
Authors
C.R. Parker
Microsatellite DNA markers for the study of Allegheny woodrat (Neotoma magister) populations and cross-species amplification the genus Neotoma Microsatellite DNA markers for the study of Allegheny woodrat (Neotoma magister) populations and cross-species amplification the genus Neotoma
The Allegheny woodrat (Neotoma magister) is a colony-forming murid rodent inhabiting rock outcrops, cliff and talus slopes, and caves within the Central and Southern Appalachians of North America (Hall 1981). The species is currently considered threatened, endangered, or at risk throughout its range purportedly due to the direct or indirect effects of human-fragmented landscapes...
Authors
S.B. Castleberry, T.L. King, P.B. Wood, W.M. Ford
Correlation of transforming growth factor-β messenger RNA (TGF-β mRNA) expression with cellular immunoassays in Triamcinolone-treated captive hybrid striped bass Correlation of transforming growth factor-β messenger RNA (TGF-β mRNA) expression with cellular immunoassays in Triamcinolone-treated captive hybrid striped bass
Assessing fish immune status with molecular markers has been hampered by a lack of specific reagents. A quantitative polymerase chain reaction (PCR) method (reverse transcription quantitative–competitive PCR, RT-qcPCR) for measuring transforming growth factor-β (TGF-β) transcription from a broad range of teleost fish has recently been developed. The quantitative PCR now permits...
Authors
Craig A. Harms, Christopher A. Ottinger, Suzanne Kennedy-Stoskopf
Modeling sand bank formation around tidal headlands Modeling sand bank formation around tidal headlands
Sandbanks are often found in the vicinity of coastal headlands around which tidal flows are strong enough to generate significant tidally-forced residual eddies, typically with scales of 2-10 km. One popular hypothesis is that these sandbanks are generated by a 'tidal stirring' mechanism in which the inward-directed pressure gradient associated with these residual eddies produces an...
Authors
Richard P. Signell, Courtney K. Harris
Mitochondrial DNA diversity North American and European Atlantic salmon with emphasis on the downeast rivers of Maine Mitochondrial DNA diversity North American and European Atlantic salmon with emphasis on the downeast rivers of Maine
The displacement loop and NADH-1 dehydrogenase regions of mitochondrial DNA (mtDNA) were amplified by the polymerase chain reaction in 954 Atlantic salmon and digested with 40 restriction endonucleases. Variation was detected with 10 enzymes, resulting in 21 composite haplotypes which were strongly patterned geographically with a major discontinuity observed between most North American...
Authors
T.L. King, A.P. Spidle, M.S. Eackles, B.A. Lubinski, W. B. Schill
Observations of health indices used to monitor a tailwater trout fishery Observations of health indices used to monitor a tailwater trout fishery
Health of the population of rainbow trout Oncorhynchus mykiss in the San Juan River tailwater was monitored to determine the effects of potential crowding from a reduced winter flow test at Navajo Dam, northwestern New Mexico. A systematic necropsy-based health profile provided a rapid method to detect gross changes in the health of the fish population. The health assessment index (HAI)...
Authors
R.J. Sutton, C.A. Caldwell, V. S. Blazer
The effects of egg oiling on fish consumption by double-crested cormorants on Little Galloo Island, Lake Ontario The effects of egg oiling on fish consumption by double-crested cormorants on Little Galloo Island, Lake Ontario
No abstract available at this time
Authors
J. H. Johnson, R. M. Ross, J. Farquhar
Modeling surface trapped river plumes: A sensitivity study Modeling surface trapped river plumes: A sensitivity study
To better understand the requirements for realistic regional simulation of river plumes in the Gulf of Maine, we test the sensitivity of the Blumberg-Mellor hydrodynamic model to choice of advection scheme, grid resolution, and wind, using idealized geometry and forcing. The test case discharges 1500 m3/s of fresh water into a uniform 32 psu ocean along a straight shelf at 43?? north...
Authors
Jason Hyatt, Richard P. Signell