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The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
The USGS provides unbiased, objective, and impartial scientific information upon which our audiences, including resource managers, planners, and other entities, rely.
Browse more than 5,500 book chapters authored by our scientists over the past 100+ year history of the USGS and refine search by topic, location, year, and advanced search.
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Response of salmonid fish to artificial infection with chum salmon virus Response of salmonid fish to artificial infection with chum salmon virus
In the fall of 1978, a reovirus was isolated from normal-appearing adult chum salmon (Oncorhynchus keta) returning to the Tokushibetsu Hatchery in Hokkaido, Japan (Winton et al 1981). The chum salmon virus (CSW) was recovered in the chinook salmon (Oncorhynchus tshawytscha) embryo cell line (CHSE-214) where it replicated at 15-20 C, producing foci of syncytia in the monolayer. Electron...
Authors
J. R. Winton, C.N. Lannan, M. Yoshimizu, T. Kimura
Riverine and deepwater habitats for diving ducks Riverine and deepwater habitats for diving ducks
No abstract available.
Authors
C. E. Korschgen
Selected toxic trace-element and pesticide concentrations in water, sediment, and biota from the southern Tulare Lake area near Kern National Wildlife Refuge, California Selected toxic trace-element and pesticide concentrations in water, sediment, and biota from the southern Tulare Lake area near Kern National Wildlife Refuge, California
No abstract available.
Authors
R. A. Schroeder, D. Palawski, J. P. Skorupa
Selenium and small mammal populations at Kesterson reservoir Selenium and small mammal populations at Kesterson reservoir
No abstract available.
Authors
D. R. Clark
Selenium in relation to wildlife and agricultural drainage water Selenium in relation to wildlife and agricultural drainage water
No abstract available.
Authors
H. M. Ohlendorf, J. P. Skorupa
Serology for the microbiological examination of fish and shellfish Serology for the microbiological examination of fish and shellfish
No abstract available at this time
Authors
W. B. Schill, G. L. Bullock, D. P. Anderson
Snowy owl Snowy owl
The snowy owl is a rare to uncommon, irregular winter visitor in the northeastern United States, decreasing southward in abundance except during incursion years, when it is more common and widely distributed. Although snowy owls are recorded in northern New England every winter, major incursions occur at approximately three to four year intervals. Limiting factors include food, habitat...
Authors
D.G. Smith, D. H. Ellis
Stable carbon isotopes in vernal pool aquatics of differing photosynthetic pathways Stable carbon isotopes in vernal pool aquatics of differing photosynthetic pathways
No abstract available at this time
Authors
Jon E. Keeley
Statistical considerations in designing raptor surveys Statistical considerations in designing raptor surveys
Careful sampling design is required to obtain useful estimates of raptor abundance. Well-defined objectives, selection of appropriate sample units and sampling scheme, and attention to detail to reduce extraneous sources of variability and error are all important considerations in designing a raptor survey.
Authors
G.W. Pendleton
Status and conservation of North American raptors migrating to the neotropics Status and conservation of North American raptors migrating to the neotropics
No abstract available.
Authors
S.E. Senner, M.R. Fuller
Structural evolution of the southeastern portion of the Anadarko Basin region Structural evolution of the southeastern portion of the Anadarko Basin region
Field investigations in the Lake Classen-Turner Falls, Oklahoma, area of the northern Arbuckle anticline, on the southeastern margin of the Anadarko basin, indicate that transpressional (oblique compressional) deformation of Late Pennsylvanian age dominated the structural development of this area. The Arbuckle anticline is detached along the NW -trending, SW -dipping, left-reverse...
Authors
William J. Perry
Structure and tectonostratigraphy of the eastern Blue Ridge and western Piedmont Structure and tectonostratigraphy of the eastern Blue Ridge and western Piedmont
No abstract available
Authors
A. E. Nelson, J. Wright Horton