Causes of varied sediment gravity flow types on the Alsek Prodelta, northeast Gulf of Alaska
William C. Schwab, Homa J. Lee, Bruce F. Molnia
1988, Marine Geotechnology (7) 317-342
Slope failures and subsequent mass movements have been identified in Holocene glaciomarine sediment on declivities less than 1.3° on the Alsek prodelta, Gulf of Alaska. Isolated collapse features cover less than 10 percent of a nearshore sand deposit, in water depths less than 40 m. In contrast, sediment gravity flow...
Absence of strain accumulation in the Shumagin seismic gap, Alaska, 1980-1987
M. Lisowski, J.C. Savage, W.H. Prescott, W.K. Gross
1988, Journal of Geophysical Research Solid Earth (93) 7909-7922
Measurements of the deformation of a trilateration network in the Shumagin seismic gap in the interval 1980–1987 failed to detect any significant strain accumulation (observed extension rate in the direction of plate convergence 0.00±0.03 μstrain/yr). Dislocation models of the subduction process and measurements at a comparable network at a known...
Ocean plateau-seamount origin of basaltic rocks, Angayucham terrane, central Alaska
F. Barker, D. L. Jones, J. R. Budahn, P.J. Coney
1988, Journal of Geology (96) 368-374
The Angayucham terrane of north-central Alaska (immediately S of the Brooks Range) is a large (ca. 500 km E-W), allochthonous complex of Devonian to Lower Jurassic pillow basalt, diabase sills, gabbro plutons, and chert. The mafic rocks are transitional normal-to-enriched, mid-ocean-ridge (MORB) type tholeiites (TiO2 1.2-3.4%, Nb 7-23 ppm, Ta...
Earthquakes, March-April 1988
W. J. Person
1988, Earthquakes & Volcanoes (USGS) (20) 167-171
There were two major earthquakes (7.0-7.9) during this reporting period. the first, a magnitude 7.6, was centered in the Gulf of Alaska on March 6 and the second, a magnitude 7.0, occurred near the coast of southern Peru on April 12. In the United States, the largest earthquake was the magnitude...
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...
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...
Summer spawning in the fourhorn sculpin, Myoxocephalus quadricornis, from Alaska
S.R. Goldberg, W. T. Yasutake, R.L. West
1987, Canadian Field-Naturalist (101) 457-457
Histological ovarian analysis indicates summer spawning occurs in Myoxocephalus quadricornis (Fourhorn Sculpin) from Alaska. Previous studies have shown this species spawns during winter in the Baltic Sea; the data presented herein suggests that geographical variation may occur in the timing of spawning of this species....
Tetlin National Wildlife Refuge land cover mapping project users guide
Carl J. Markon
1987, Report
Title III of the Alaska National Interest Lands Conservation Act of 1980 (ANILCA, 1980) established the Tetlin National Wildlife Refuge (TNWR). Section 304 of the Act requires the Secretary of Interior to "prepare, and from time to time revise, a comprehensive conservation plan" for the refuge. Before developing a plan...
Nesting by pomarine jaegers near Barrow, Alaska, 1971
Thomas W. Custer, Frank A. Pitelka
1987, Journal of Field Ornithology (58) 225-230
An estimated 5.7 pairs of pomarine jaegers km -2 (14.8 mi -2) nested near Barrow, Alaska, in 1971. Hatching success of 67 eggs (34 nests) was 57%. Fledging success of 44 nestlings (26 nests) was 32%. An estimated 0.4 young survived to 25 d of age per nesting attempt....
Arctic National Wildlife Refuge, Alaska, Coastal Plain Resource Assessment: Report and recommendation to the Congress of the United States and final legislative environmental impact statement
U.S. Fish and Wildlife Service
1987, Report
The Arctic National Wildlife Refuge, in the northeastern corner of Alaska, was first established as the Arctic National Wildlife Range by Public Land Order 2214 in 1960, for the purpose of preserving unique wildlife, wilderness, and recreational values. The original 8.9-millionacre Range was withdrawn from all forms of appropriation under...
Checklist of vertebrates of the United States, the U.S. territories, and Canada
Richard C. Banks, Roy W. McDiarmid, Alfred L. Gardner
1987, Resource Publication 166
On 30 January 1980 the Policy Group of the 1978 Interagency Agreement on Classifications and Inventory established a work group on fish and wildlife species names. The participating agencies were the Fish and Wildlife Service, Forest Service, Bureau of Land Management, Geological Survey, and Soil Conservation Service. The...
Accretion of southern Alaska
John W. Hillhouse
1987, Tectonophysics (139) 107-122
Paleomagnetic data from southern Alaska indicate that the Wrangellia and Peninsular terranes collided with central Alaska probably by 65 Ma ago and certainly no later than 55 Ma ago. The accretion of these terranes to the mainland was followed by the arrival of the Ghost Rocks volcanic assemblage at the...
Quaternary geologic map of the Ugashik, Bristol Bay, and western part of Karluk quadrangles, Alaska
R. L. Detterman, Frederic H. Wilson, M. E. Yount, T. P. Miller
1987, IMAP 1801
Arctic, Alaska, vegetation and land cover, 1981
Water Resources Division, U.S. Geological Survey
1987, Land Use and Land Cover 207
Vegetation and land cover, Tetlin National Wildlife Refuge, Alaska
Water Resources Division, U.S. Geological Survey
1987, IMAP 1813
No abstract available....
Geologic map of the Ugashik, Bristol Bay, and western part of Karluk quadrangles, Alaska
Robert L. Detterman, J. E. Case, Frederic H. Wilson, M. E. Yount
1987, IMAP 1685
Analytical results and sample locality map of rock samples from the White Mountains Recreation Area, Livengood and Circle quadrangles, east-central Alaska
S. J. Sutley, Jean Ryder, T.D. Light, F. R. Weber
1987, Open-File Report 87-284
Index to limnological data for southcentral Alaska Lakes
M.A. Maurer, P. F. Woods
1987, Open-File Report 87-529
South-central Alaska lakes are a valuable natural resource and provide a variety of recreational opportunities to the public. Lakeside development has increased significantly in the past 10 years and several south-central Alaskan lakes have documented pollution problems. Cultural eutrophication, the process by which man-induced nutrient loading to a lake results...
Alaska ground-water quality
R. J. Madison, T.J. McElhone, Chester Zenone
1987, Open-File Report 87-712
Activities of the Alaska District, Water Resources Division, U.S. Geological Survey, 1987
E. F. Snyder (compiler)
1987, Open-File Report 87-38
Hydrologic data collection activities by the U.S. Geological Survey in Alaska are described. Seventeen projects were active in 1987. Each description includes information on period of project, project chief, funding sources, location, purpose, current status, and published or planned reports. The compilation also contains a bibliography of reports published by...
1987 annual report on Alaska's mineral resources
Diedra Bohn, editor(s)
1987, Circular 1012
Water resources near Dillingham in the Bristol Bay Area, Alaska
R. L. Glass
1987, Water-Resources Investigations Report 87-4141
Dillingham, the largest community in the Bristol Bay area of Alaska, lies near the confluence of the Wood and Nushagak Rivers. Mean annual discharges for the Wood and Nushagak Rivers are 4,824 and 22,650 cu ft/sec. Flows generally are greatest in May through July and lowest in January through April....
Surficial geologic map of the Anchorage B-7 NE quadrangle, Alaska
L. A. Yehle, H. R. Schmoll
1987, Open-File Report 87-416
No abstract available....
