Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16740
Long bone fracture management in a sandhill crane: a case report Long bone fracture management in a sandhill crane: a case report
No abstract available.
Authors
P. N. Klein, D. Thompson
Studies of sea ducks in the Atlantic flyway Studies of sea ducks in the Atlantic flyway
No abstract available.
Authors
D.G. Krementz, David F. Caithamer
Results of an experiment to lead cranes on migration behind motorized ground vehicles Results of an experiment to lead cranes on migration behind motorized ground vehicles
Ten greater sandhill cranes (Grus canadensis tabida), trained to enter and ride in a specially equipped truck, were transported at 80? days of age from their rearing site at Patuxent Wildlife Research Center (Patuxent), Maryland, to a reintroduction site located within the species? former breeding range in northern Arizona. After 5 additional weeks of training, these juvenile cranes were...
Authors
D. H. Ellis, B. Clauss, T. Watanabe, R.C. Mykut, M. Kinloch, Catherine H. Ellis
Late Paleocene and early Eocene calcareous nannofossils from three boreholes in an onshore-offshore transect from New Jersey to the Atlantic Continental Rise Late Paleocene and early Eocene calcareous nannofossils from three boreholes in an onshore-offshore transect from New Jersey to the Atlantic Continental Rise
Closely spaced, upper Paleocene and lower Eocene samples from three boreholes near Clayton, NJ, at Island Beach, NJ, and at Site 605 on the Atlantic Ocean continental rise were examined for their calcareous nannofossil content. This study documents calcareous nannofossil occurrences in Zones NP9 and NP10 and identifies biostratigraphically useful species, presents unexpected upbasin...
Authors
Laurel M. Bybell, Jean Self-Trail
The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus) The effects of experimental starter diets with different levels of soybean or menhaden oil on red drum (Sciaenops ocellatus)
Red drum reared from captive-spawned eggs were used in a 2 × 4 factorial experiment comparing eight diets with soybean oil (SBO) or menhaden oil (MHO) added to a basal diet (about 3.4% lipid from practical ingredients) at 1.5, 5.2, 9.0, or 12.7%. Triplicate groups of 20 early juveniles (mean 0.4 g) were stocked in 1000 litre fiberglass tanks supplied with filtered estuarine water (17–26...
Authors
J. W. Tucker, William A. Lellis, G. K. Vermeer, D. E. Roberts, P. N. Woodward
Genetic responses of Isonychia bicolor (Ephemeroptera: Isonychiidae) to chronic mercury pollution Genetic responses of Isonychia bicolor (Ephemeroptera: Isonychiidae) to chronic mercury pollution
The relationship between allozyme genotype and survival of nymphs of the mayfly Isonychia bicolor (Walker) when exposed to acute mercury concentrations was tested in laboratory experiments. The probability of survival and individual times-to-death were found to be significantly different among genotypes at the glucose phosphate isomerase locus, but not at the phosphoglucomutase locus...
Authors
C.D. Snyder, A.C. Hendricks
Food and prey selection of recently released American shad (Alosa sapidissima) larvae Food and prey selection of recently released American shad (Alosa sapidissima) larvae
We examined the diet composition and prey selection of 1,875 recently released American shad (Alosa sapidissima) larvae (approximately 18-d old). Larvae were collected in the Juniata River, Pennsylvania, during June in 1991 and 1992. Chironomid pupae were selected by shad larvae and were the major component in the diet in 1991 (50%) and 1992 (96%). Chironomid larvae, the second-ranked...
Authors
J. H. Johnson, D. S. Dropkin
Development of anesthetics for the mussel Elliptio complanata Development of anesthetics for the mussel Elliptio complanata
No abstract available at this time
Authors
W.A. Lellis, T.A. Plerhoples
The ontogeny of salinity tolerance in the American shad, Alosa sapidissima The ontogeny of salinity tolerance in the American shad, Alosa sapidissima
No abstract available.
Authors
Joseph D. Zydlewski, S. D. McCormick
Evidence of secondary consumption of invertebrate prey by double-crested cormorants Evidence of secondary consumption of invertebrate prey by double-crested cormorants
No abstract available.
Authors
J. H. Johnson, R. M. Ross, D. R. Smith
Contaminant concentrations and biomarker response in great blue heron eggs from 10 colonies on the upper Mississippi River, USA Contaminant concentrations and biomarker response in great blue heron eggs from 10 colonies on the upper Mississippi River, USA
In 1993, great blue heron (Ardea herodias; GBH) eggs were collected from 10 colonies on the upper Mississippi River (UMR). They were then artificially incubated until pipping and analyzed for mercury, selenium, and organochlorines. Livers of embryos were analyzed for hepatic microsomal ethoxyresorufin-O-dealkylase (EROD) activity and four measures of oxidative stress. Brains were...
Authors
T. W. Custer, R. K. Hines, M. J. Melancon, D. J. Hoffman, J.K. Wickliffe, J. W. Bickham, J.W. Martin, D.S. Henshel
Multiphase groundwater flow near cooling plutons Multiphase groundwater flow near cooling plutons
We investigate groundwater flow near cooling plutons with a computer program that can model multiphase flow, temperatures up to 1200°C, thermal pressurization, and temperature‐dependent rock properties. A series of experiments examines the effects of host‐rock permeability, size and depth of pluton emplacement, single versus multiple intrusions, the influence of a caprock, and the impact...
Authors
Daniel O. Hayba, Steven E. Ingebritsen