Seepage studies of the Weber River and the Davis-Weber and Ogden Valley canals Davis and Weber Counties, Utah, 1985
L. R. Herbert, R.W. Cruff, D.W. Clark, Charles Avery
1987, Technical Publication 90
Studies of selected reaches of the Weber River, Davis-Weber Canal, and the Ogden Valley Canal in Davis and Weber Counties, Utah, were made to determine gains or losses of flow in those reaches. Three to five sets of seepage measurements were made on the river and each canal during 1985....
Seepage study of a 15.3-mile section of the central Utah canal, Pahvant Valley, Millard County, Utah
Michael Enright
1987, Technical Publication 91
Three sets of seepage measurements were made at ten canal sites and at all turnouts along a 15.3-mile section of the Central Utah Canal during the summer of 1986. The total loss for the 15.3-mile section averaged about 36 cubic feet per second or 2.4 cubic feet per second per...
Morgan Hill, California Earthquake, April 1984
Henry Spall, editor(s)
1987, Earthquake Information Bulletin (USGS) (17) 173-176
The Morgan Hill earthquake, a moderate-size (Mg=6.1, ML =6.2, M=6.2) event, was felt throughout central California on April 24, 1984. The epicenter of the earthquake was located near Halls Valley southwest of Mount Hamilton, and the event is presumed to have occurred on the Calaveras fault. Damage, however, was...
Taking the pulse of Parkfield
R. A. Kerr
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 28-29
DOSECC continental scientific drilling program
Henry Spall, editor(s)
1987, Earthquake Information Bulletin (USGS) (19) 48-55
Unreinforced masonry buildings
Henry Spall, editor(s)
1987, Earthquake Information Bulletin (USGS) (19) 178-178
An interview with Otto Nuttli
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 12-22
Raising the stakes at Mount St. Helens
R. A. Kerr
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 56-59
Earthquakes July-August 1986
Waverly J. Person
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 32-35
Earthquakes May-June 1986
Waverly J. Person
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 30-32
Delving into faults and earthquake behavior
R. A. Kerr
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 29-30
Lake Nyos was rigged for disaster
R. A. Kerr
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 22-27
Studies suggest that magmatic gas seepage had turned Lake Nyos in Cameroon into a time bomb; evidence mounts against a volcanic trigger for last August's disaster....
A detailed chronology of the most recent eruption period at Mount Hood, Oregon
Kenneth A. Cameron, P. T. Pringle
1987, Geological Society of America Bulletin (99) 845-851
The most recent eruptive period of Mount Hood volcano, the Old Maid eruptive period, was characterized by volcano-hydrologic events (hydrologic events initiated by volcanic activity) which resulted in extensive lahar inundation in the White, Sandy, and Zigzag River drainages and produced a lithic pyroclastic flow which traveled at least 9...
Debris flow/avalanches: Process, recognition, and mitigation
John E. Costa, G. F. Wieczorek
1987, Book
No abstract available....
A chronology of U.S. Geological Survey hazards warnings: 1976-1986
Paula L. Gori, Clement F. Shearer
Henry Spall, editor(s)
1987, Earthquakes & Volcanoes (USGS) (19) 4-11
Cranial nodules associated with skull fenestrations in juvenile Atlantic salmon, Salmo salar L.
M.L. Kent, S.R. Wellings, W. T. Yasutake, R.A. Elston
1987, Journal of Fish Diseases (10) 419-421
No abstract available...
Effect of differential gastric evacuation and multispecies prey items on estimates of daily energy intake in juvenile Chinook salmon
A.S. Kolak, D.W. Rondorf
1987, Environmental Biology of Fishes (19) 131-137
The caloric density of stomach contents in juvenile chinook salmon,Oncorhynchus tshawytscha, was not affected by gastric evacuation, suggesting a constant caloric density of stomach contents during evacuation. Differences in the caloric density of prey consumed did affect caloric density of stomach contents over a 24-h period. Consumption of...
Modeling of estuarne chlorophyll a from an airborne scanner
Siamak Khorram, Glenn P. Catts, James E. Cloern, Allen W. Knight
1987, IEEE Transactions on Geoscience and Remote Sensing (25) 662-669
Near simultaneous collection of 34 surface water samples and airborne multispectral scanner data provided input for regression models developed to predict surface concentrations of estuarine chlorophyll a. Two wavelength ratios were employed in model development. The ratios werechosen to capitalize on...
Flood power
1987, Book chapter, Catastrophic flooding: 18th annual geomorphology "Binghampton" symposium
Comparison of five techniques for the detection of Renibacterium salmoninarum in adult coho salmon.
R.J. Pascho, D.G. Elliott, R.W. Mallett, D. Mulcahy
1987, Transactions of the American Fisheries Society (116) 882-890
Samples of kidney, spleen, coelomic fluid, and blood from 56 sexually mature coho salmon Oncorhynchus kisutch were examined for infection by Renibacterium salmoninarum by five methods. The overall prevalence (all sample types combined) of R. salmoninarum in the fish was 100% by the enzyme-linked immunosorbent assay, 86% by the combined...
Infectious hematopoietic necrosis virus detected by separation and incubation of cells from salmonid cavity fluid.
D. Mulcahy, W.N. Batts
1987, Canadian Journal of Fisheries and Aquatic Sciences (44) 1071-1075
Infectious hematopoietic necrosis (IHN) virus is usually detected by inoculating susceptible cell cultures with cavity ("ovarian") fluid (CF) from spawning females. We identified additional adult carriers of virus in spawning populations of steelhead trout (Salmo gairdneri) and sockeye salmon (Oncorhynchus nerka) by collecting nonerythrocytic cells from CF samples by low-speed...
Enzyme-linked immunosorbent assay for a soluble antigen of Renibacterium salmoninarum, the causative agent for salmonid bacterial kidney disease
R.J. Pascho, D. Mulcahy
1987, Canadian Journal of Fisheries and Aquatic Sciences (44) 183-191
A double-antibody enzyme-linked immunosorbent assay (ELISA) for detection of a soluble fraction of Renibacterium salmoninarum was developed from components extracted from the supernatant of an R. salmoninarum broth culture. The Costar® Serocluster™ EIA microplate gave the highest absorbance and signal-to-noise ratios among seven types tested. Including Tween 80 in the...
Safe pre-release disease treatment with formalin for fall chinook salmon smolts
S.D. Smith, R. W. Gould, W.S. Zaugg, L.W. Harrell, C.V.W. Mahnken
1987, Progressive Fish-Culturist (49) 96-99
Standard formalin treatment (167 μL/L for 1 h) applied to presmolts and smolts of fall chinook salmon (Oncorhynchus tshawytscha) 80, 62, 52, 38, 24, and 10 d prior to seawater exposure did not affect freshwater growth or survival during a 20-d period in seawater. There was no consistent effect of...
Trends in spawning populations of Pacific anadromous salmonids
G.W. Konkel, J.D. McIntyre
1987, Fish and Wildlife Technical Report 9
Annual escapement records for 1968-1984 for five species of Pacific salmon-chinook (Oncorhynchus tshawytscha), coho (O. kisutch), sockeye (O. nerka), pink (O. gorbuscha), and chum (O. keta)—and steelhead (Salmo gairdneri) were obtained from published and unpublished sources and organized in a computer database. More than 25,500 escapement records were obtained for...
Basis for managing the harvest of Chinook salmon
R.R. Reisenbichler, S.R. Phelps
1987, North American Journal of Fisheries Management (7) 589-591
On the basis of estimated spawner-recruit relations for populations of chinook salmon Oncorhynchus tshawytscha from British Columbia to California, harvest fractions of 60-70% may be reasonable for stocks for which the productivities are not known. Care should be taken to detect and to avoid excessive harvest from stocks with low...
