Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16746
Size- and species-dependent variability consumption and growth rates of larvae and juveniles of three freshwater fishes Size- and species-dependent variability consumption and growth rates of larvae and juveniles of three freshwater fishes
No abstract available.
Authors
B. H. Letcher, J. A. Rice, L.B. Crowder, F. P. Binkowski
Food habits of Atlantic sturgeon off the central New Jersey coast Food habits of Atlantic sturgeon off the central New Jersey coast
Limited information exists on the marine diet of the Atlantic sturgeon Acipenser oxyrinchus oxyrinchus. We examined the food habits of 275 Atlantic sturgeon (total length, 106–203 cm) caught in the commercial fishery off the coast of New Jersey. Stomachs were provided by fishermen. Significantly more stomachs were empty in the spring than in the fall. Sand and organic debris were a major...
Authors
J. H. Johnson, D. S. Dropkin, B.E. Warkentine, J.W. Rachlin, W.D. Andrews
In memoriam: John Warren Aldrich, 1906-1995 In memoriam: John Warren Aldrich, 1906-1995
John Aldrich was born in Providence, Rhode Island, on 23 February 1906, and went to the Providence public schools. He developed a broad interest in natural history at an early age, being stimulated by his mother, a kindergarten teacher, who introduced him to nature books. His interest was strengthened by Harold L. Madison, Director of the Park Museum in Providence, an Associate ( =...
Authors
Richard C. Banks
Egg dates for Virginia birds Egg dates for Virginia birds
No abstract available.
Authors
R. B. Clapp
Identification of potential water-bearing zones by the use of borehole geophysics in the vicinity of Keystone Sanitation Superfund Site, Adams County, Pennsylvania, and Carroll County, Maryland Identification of potential water-bearing zones by the use of borehole geophysics in the vicinity of Keystone Sanitation Superfund Site, Adams County, Pennsylvania, and Carroll County, Maryland
Between April 23, 1996, and June 21, 1996, the U.S. Environmental Protection Agency contracted Haliburton-NUS, Inc., to drill four clusters of three monitoring wells near the Keystone Sanitation Superfund Site. The purpose of the wells is to allow monitoring and sampling of shallow, intermediate, and deep waterbearing zones for the purpose of determining the horizontal and vertical...
Authors
Randall W. Conger
Environment of ore deposition in the creede mining district, San Juan Mountains, Colorado: Part V. Epithermal mineralization from fluid mixing in the OH vein Environment of ore deposition in the creede mining district, San Juan Mountains, Colorado: Part V. Epithermal mineralization from fluid mixing in the OH vein
Detailed fluid inclusion studies on coarse-grained sphalerite from the OH vein, Creede, Colorado, have shown that the abrupt color changes between growth zones correspond to abrupt changes in the nature of the ore fluids. Within each growth zone, however, the composition of the fluids remained constant. The base of a distinctive orange-brown growth zone marks a sharp increase in both...
Authors
D.O. Hayba
Susceptibility of 12 lineages of chinook salmon embryo cells (CHSE-214) to four viruses from salmonid fish: implications for clinical assay sensitivity Susceptibility of 12 lineages of chinook salmon embryo cells (CHSE-214) to four viruses from salmonid fish: implications for clinical assay sensitivity
No abstract available.
Authors
P. E. McAllister
Changes in the growth hormone/insulin-like growth factor 1 axis during smolting of Altantic salmon the wild Changes in the growth hormone/insulin-like growth factor 1 axis during smolting of Altantic salmon the wild
No abstract available.
Authors
S. D. McCormick, Bjorn Thrandur Bjornsson, S. Moriyama, C. Duan
Field studies on pesticides and birds: unexpected and unique relations Field studies on pesticides and birds: unexpected and unique relations
We review the advantages and disadvantages of experimental and field studies for determining effects of pesticides on birds. Important problems or principles initially discovered in the field include effects of DDT (through its metabolite DDE) on eggshell thickness, reproductive success, and population stability; trophic-level bioaccumulation of the lipid-soluble organochlorine...
Authors
L. J. Blus, Charles J. Henny
Mercury residues in south Florida apple snails (Pomacea paludosa) Mercury residues in south Florida apple snails (Pomacea paludosa)
Mercury concentrations in the sediments of south Florida wetlands have increased three fold in the last century (Rood et al. 1993). Because south Florida is home to many endemic and endangered species, it is important to understand the potential impacts of mercury in this ecosystem's food web. Recent research by Malley et al. (1996) has shown mollusks to be sensitive indicators of methyl...
Authors
J.D. Eisemann, W. N. Beyer, R.E. Bennetts, Alexandra Morton