Publications
These publications showcase the significant science conducted in our Science Centers.
Filter Total Items: 16758
Construction aggregates Construction aggregates
Part of a special section on industrial minerals in 1993. The 1993 production of construction aggregates increased 6.3 percent over the 1992 figure, to reach 2.01 Gt. This represents the highest estimated annual production of combined crushed stone and construction sand and gravel ever recorded in the U.S. The outlook for construction aggregates and the issues facing the industry are...
Authors
V.V. Tepordei
Brown-headed cowbird Molothrus ater Brown-headed cowbird Molothrus ater
No abstract available.
Authors
C.S. Robbins
Common tern (Sterna hirundo) Common tern (Sterna hirundo)
No abstract available.
Authors
J. A. Spendelow
Capture-recapture methods for bird population studies Capture-recapture methods for bird population studies
No abstract available.
Authors
J.D. Nichols
The ninety-fourth Christmas bird count. Georgia/Florida The ninety-fourth Christmas bird count. Georgia/Florida
No abstract available.
Authors
P.W. Sykes
Quality and environmental research Quality and environmental research
No abstract available.
Authors
D.L. Trauger
Ontogeny and evolution of salinity tolerance in anadromous salmonids: Hormones and heterochrony Ontogeny and evolution of salinity tolerance in anadromous salmonids: Hormones and heterochrony
Use of estuaries and oceans by salmonids varies greatly, from no use in nonanadromous species, to movement toward the sea soon after hatching and emergence in some Pacific salmon. This variation is accompanied by large differences in the ontogeny of salinity tolerance among salmonids. Some species acquire increased salinity tolerance early in development, whereas others develop this...
Authors
S. D. McCormick
Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion Duration of protection against Aeromonas salmonicida brook trout immunostimulated with glucan or chitosan by injection or immersion
Brook trout (Salvelinus fontinalis) were given the immunostimulants glucan or chitosan by single injections or by a 30‐min immersion to induce protection against the fish disease furunculosis. At 1, 2, 3, 7, 14, 21, and 28 d after immunostimulation, sublots from these groups were challenged by a 1‐min bath exposure to a 48‐h culture of Aeromonas salmonicida. All four groups showed high...
Authors
D. P. Anderson