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Page 4687, results 117151 - 117175

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Not all publications have extents, not all extents are completely accurate
Hydrologic reconnaissance of the Chilkat River basin, Southeast Alaska; with special reference to the Alaska Chilkat Bald Eagle Preserve
E. F. Bugliosi
1988, Water-Resources Investigations Report 88-4023
The Chilkat River Basin of Alaska is characterized by glaciers, highly dissected mountains with steep-gradient streams, and braided rivers in broad, alluvium-filled valleys. Orographic effects and a wide seasonal range in temperature cause variations in the amount and distribution of precipitation, and thus in the resulting runoff and streamflow. Seeps...
Simulation of three lahars in the Mount St Helens area, Washington using a one-dimensional, unsteady-state streamflow model
Antonius Laenen, R. P. Hansen
1988, Water-Resources Investigations Report 88-4004
A one-dimensional, unsteady-state, open-channel model was used to analytically reproduce three lahar events. Factors contributing to the success of the modeling were: (1) the lahars were confined to a channel, (2) channel roughness was defined by field information, and (3) the volume of the flow remained relatively unchanged for the...
Estimates of gains and losses for reservoirs on the Snake River from Blackfoot to Milner, Idaho, for selected periods, 1912 to 1983
L.C. Kjelstrom
1988, Water-Resources Investigations Report 87-4063
Croplands in the semiarid central part of the Snake River Plain are dependent on the availability of irrigation water, most of which comes from the Snake River. Allocation of irrigation water from the river requires that gains and losses be determined for American Falls Reservoir, Lake Walcott, and Milner Lake....
American wild celery (Vallisneria americana): Ecological considerations for restoration
C. E. Korschgen, W. L. Green
1988, Technical Report 19
The success of vegetation management programs for waterfowl is dependent on knowing the physical and physiological requirements of target species. Lakes and riverine impoundments that contain an abundance of the American wildcelery (Vallisneria americana ) have traditionally been favored by canvasbacks (Aythya valisineria ) and other waterfowl...
Geophysical study of a magma chamber near Mussau Island, Papua New Guinea
Shawn V. Dadisman, M. S. Marlow
1988, Book chapter, Geology and offshore resources of Pacific Island Arcs: New Ireland and Manus Region, Papa New Guinea
Analysis of a 24-channel seismic-reflection data collected near Mussau Island, Papua New Guinea, shows a high-amplitude, negative-polarity reflection that we believe is from the top of a magma chamber.  The reflecting horizon lies at a depth of about 4.4 s subbottom and can be traced laterally for 2.6 km.  On...
Seasonal growth of the exotic submersed macrophyte Nitellopsis obtusa in the Detroit River of the Great Lakes
S. Jerrine Nichols, Donald W. Schloesser, James W. Geis
1988, Canadian Journal of Botany (66) 116-118
Seasonal growth and occurrence of an exotic submersed aquatic macrophyte, Nitellopsis obtusa, was monitored at the head of the Detroit River of the Great Lakes from June 1984 to April 1985.Nitellopsis obtusa first appeared in early July, increased in biomass from July to September, remained at relatively high biomass from September to...
Feeding ecology of canvasbacks staging on Pool 7 of the Upper Mississippi River
C. E. Korschgen, L. S. George, W. L. Green
M.W. Weller, editor(s)
1988, Book chapter, Waterfowl in winter
Foods consumed by canvasback ducks (Aythya valisineria), food availability, and energetic relationships were studied on Navigation Pool 7 of the upper Mississippi River in 1978, 1979, and 1980. Canvasbacks fed primarily upon winter buds of American wildcelery (Vallisneria americana) and tubers of stiff arrowhead (Sagittaria rigida). In 1980, waterfowl consumed...
Russelspringer. [Elephant-shrew]
G. B. Rathbun, R. Fons
B. Grzimek, editor(s)
1988, Book chapter, Grzimeks Enzyklopadie Saugetiere. [Grzimek's Mammal Encyclopedia]
No abstract available at this time...
Toxic substances and survival of Lake Michigan salmonids: field and laboratory approaches
Michael J. Mac
Marlene S. Evans, editor(s)
1988, Book chapter, Toxic contaminants and ecosystem health: a Great Lakes focus
An examination is made of the effects of chemical contaminants on the reproduction of fish from the Great Lakes. Routes of contaminant exposure are outlined; andlake trout and chinook salmon mortality are discussed with respect to evidence showing contaminant involvement....
Why did they quit?
L. E. Holland Bartels, R.C. Hubley Jr.
1988, Fisheries (13) 32-34
No abstract available....