Mitochondrial DNA variation in chinook salmon and chum salmon detected by restriction enzyme analysis of polymerase chain reaction products
M. Cronin, R. Spearman, R. Wilmot, J. Patton, J. Bickman
1993, Canadian Journal of Fisheries and Aquatic Sciences (50) 708-715
We analyze intraspecific mitochondrial DNA variation in chinook salmon from drainages in the Yukon River, the Kenai River, and Oregon and California rivers; and chum salmon from the Yukon River and vancouver Island, and Washington rivers. For each species, three different portions of the mtDNA molecule were amplified seperately using...
Human disturbances of denning polar bears in Alaska
Steven C. Amstrup
1993, Arctic (46) 246-250
Polar bears (Ursus maritimus) give birth in dens of snow and ice. The altricial neonates cannot leave the den for >2 months post-partum and are potentially vulnerable to disturbances near dens. The coastal plain (1002) area of Alaska's Arctic National Wildlife Refuge (ANWR) lies in a region of known polar...
Seabirds of the central North Pacific
P.J. Gould, John F. Piatt
Kees Vermeer, K.T. Briggs, K.H. Morgan, D. Siegel-Causey, editor(s)
1993, Conference Paper, The status, ecology and conservation of marine birds of the North Pacific
No abstract available....
Annual and Spatial Variation of the Kelp Forest Fish Assemblage at San Nicolas Island, California
R.J. Cowen, James L. Bodkin
1993, Conference Paper, Third California Islands Symposium
The kelp forest fishes of San Nicolas Island, California were studied from 1981-1986 to examine the causes of among-site and among-year variation in the fish assemblages. Fish counts and seven physical and biological variables were recorded at six sites around the island every spring and fall. Over the study period,...
A Coast Mountains provenance for the Valdez and Orca groups, southern Alaska, based on Nd, Sr, and Pb isotopic evidence
G. L. Farmer, R. Ayuso, George Plafker
1993, Earth and Planetary Science Letters (116) 9-21
Nd, Sr, and Pb isotopic data were obtained for fourteen fine- to coarse-grained samples of accreted flysch of the Late Cretaceous and early Tertiary Valdez and Orca Groups in southern Alaska to determine the flysch provenance. Argillites and greywackes from the...
Population dynamics of the Laysan and other albatrosses in the North Pacific
Patrick J. Gould, Rod Hobbs
J. Ito, W. Shaw, R.L. Burgner, editor(s)
1993, Bulletin of the International North Pacific Fisheries Comission 53(III)
Laysan albatrosses (Diomedea immutabilis) are among the most prominent bird species which interact with commercial fisheries in the North Pacific. They are attracted to fishing nets and vessels and feed extensively on animals caught in nets, waste fish, offal, and refuse discarded from vessels. Approximately 17,500 individuals were killed in...
Status of Pacific Black Brant Branta bernicla nigricans on Wrangel Island, Russian Federation
David H. Ward, Dirk V. Derksen, Sergei Kharitonov, Mikhail Stishov, Vasily V. Baranyuk
1993, Wildfowl (44) 39-48
Abundance, distribution, and habitat selection of breeding and moulting Pacific Black Brant were studied on Wrangel Island in 1989-91. Two nests and <10 family flocks of Brant were found during ground searches in previously known nesting areas. The breeding population has declined from 1000-2000 pairs to probably <100 pairs. An...
Current status and recent dynamics of the Black Brant Branta bernicla breeding population
James S. Sedinger, Calvin J. Lensink, David H. Ward, Michael W. Anthony, Michael L. Wege, G. Vernon Byrd
1993, Wildfowl (44) 39-48
We summarize current knowledge about the distribution of Pacific Black Brant and recent dynamics of colonies, particularly on the Yukon-Kuskokwim (Y-K) Delta, Alaska. About 20,000 nests are required to produce the number of young in the autumn flight using estimates of clutch size, hatching success and gosling survival based on...
An earth remote sensing satellite- 1 Synthetic Aperture Radar Mosaic of the Tanana River Basin in Alaska
Charles E. Wivell, Coert Olmsted, Daniel R. Steinwand, Christopher Taylor
1993, Photogrammetric Engineering and Remote Sensing (59) 527-528
Because the pixel location in a line of Synthetic Aperture Radar (SAR) image data is directly related to the distance the pixel is from the radar, terrain elevations cause large displacement errors in the geo-referenced location of the pixel. This is especially true for radar systems with small angles between...
Massive sulfide metallogenesis at a late Mesozoic sediment-covered spreading axis: Evidence from the Franciscan complex and contemporary analogues
Randolph A. Koski, Roberta C. Lamons, Julie A. Dumoulin, Robin M. Bouse
1993, Geology (21) 137-140
The Island Mountain deposit, an anomalous massive sulfide in the Central belt of the Franciscan subduction complex, northern California Coast Ranges, formed during hydrothermal activity in a sediment-dominated paleo-sea-floor environment. Although the base of the massive sulfide is juxtaposed against a 500-m-wide melange band, its gradational upper contact within a...
Hydrocarbons in oil residues on beaches of islands of Prince William Sound, Alaska
K.A. Kvenvolden, F. D. Hostettler, J. B. Rapp, P.R. Carlson
1993, Marine Pollution Bulletin (26) 24-29
Aliphatic and aromatic hydrocarbons were measured on oil residues from beaches on six islands in Prince William Sound, Alaska. In addition to altered products from the Exxon Valdez oil spill of 1989, we also found, at two widely separated locations, residues that are similar to each other but chemically distinct...
Distribution, abundance, and age ratios of Wrangel Island lesser snow geese Anser caerulescens during autumn migration on the Yukon-Kuskokwim Delta, Alaska
Craig R. Ely, John Y. Takekawa, M.L. Wege
1993, Wildfowl (44) 24-32
We monitored the distribution, abundance, and productivity of Lesser Snow Geese on the Yukon-Kuskokwim (Y-K) Delta, Alaska during September and October 1991, when the geese were en route from their nesting grounds on Wrangel Island, Russia to wintering areas along the Pacific Coast. Adult geese in brood flocks were captured...
Possible connection between two Alaskan catastrophes occurring 25 yr apart (1964 and 1989)
K.A. Kvenvolden, P.R. Carlson, C. N. Threlkeld, A. Warden
1993, Geology (21) 813-816
On March 24, 1989, the Exxon Valdez supertanker grounded on Bligh Reef, spilling North Slope crude oil into Prince William Sound, Alaska. Tracking the geochemical fate of this spilled oil has revealed, in addition to weathered products from the spill, minor oil residues on beaches...
Status and ecology of kittiwakes (Rissa tridactyla and R. brevirostris) in the North Pacific
Scott A. Hatch, G.V. Byrd, D.B. Irons, G.L. Hunt Jr.
Kees Vermeer, K.T. Briggs, K.H. Morgan, D. Siegel-Causey, editor(s)
1993, Conference Paper, The status, ecology and conservation of marine birds of the North Pacific
Black-legged Kittiwakes (Rissa tridactyla) are widely distributed in the subarctic North Pacific and adjacent seas, with a total breeding population of about 2.6 million individuals. Red-legged Kittiwakes (R. brevirostris) breed in four locations, and at least 95% of their estimated world population of 230,000 birds nest on one island (St....
Autumn diet of lesser snow geese staging in northeastern Alaska
Alan W. Brackney, Jerry W. Hupp
1993, Journal of Wildlife Management (57) 55-61
The coastal plain of the Arctic National Wildlife Refuge (ANWR) is used by lesser snow geese (Chen caerulescens caerulescens) in autumn for premigratory staging. To better understand the potential impacts of human disturbance on snow geese, we investigated species composition of, and temporal and age-related variation in, their diet during...
A postulated new source for the White River Ash, Alaska: A section in Geologic studies in Alaska by the US. Geological Survey, 1990
Robert G. McGimsey, Donald H. Richter, Gregory D. DuBois, T. P. Miller
1992, Bulletin 1999
The White River Ash (Lerbekmo and others, 1968), product of two of the most voluminous pyroclastic eruptions in North America in the past 2,000 yr, blankets much of the Yukon Terrtory, Canada, and a small part of adjoining eastern Alaska. Lerbekmo and Campbell (1969) narrowed the source of the ash...
Geomorphic response to the 1989-90 eruptions of Redoubt Volcano, Alaska
J.M. Dorava
1992, Conference Paper, 1992 American Water Resources Association Annual Conference
No abstract available....
Puffins as samplers of juvenile pollock and other forage fish in the Gulf of Alaska
Scott Hatch, Gerald A. Sanger
1992, Marine Ecology Progress Series (80) 1-14
We sampled the nestling diets of tufted puffins (Fratercula cirrhata) and horned puffins (F. corniculata) in 3 years at colonies from the north-central Gulf of Alaska to the eastern Aleutian Islands, Alaska, USA. Overall, tufted puffins consumed (by weight) 41% sandlance (Ammodytes hexapterus), 22% capelin (Mallotus villosus), 19% walleye pollock...
A study of the genetic relationships within and among wolf packs using DNA fingerprinting and mitochondrial DNA
Niles Lehman, Peter Clarkson, L. David Mech, Thomas J. Meier, Robert K. Wayne
1992, Behavioral Ecology and Sociobiology (30) 83-94
DNA fingerprinting and mitochondrial DNA analyses have not been used in combination to study relatedness in natural populations. We present an approach that involves defining the mean fingerprint similarities among individuals thought to be unrelated because they have different mtDNA genotypes. Two classes of related individuals are identified by their...
Change-in-ratio
Mark S. Udevitz
Abdel H. El-Shaarawi, Walter W. Piegorsch, editor(s)
1992, Book chapter, Encyclopedia of Environmetrics, volume 1
Change-in-ratio (CIR) methods are used to estimate parameters for ecological populations subject to differential removals from population subclasses. Subclasses can be defined according to criteria such as sex, age, or size of individuals. Removals are generally in the form of closely monitored sport or commercial harvests. Estimation is based on...
Map and tables showing geochronology and whole-rock geochemistry of selected samples, Ugashik and part of Karluk quadrangles, Alaska
Frederic H. Wilson, Nora B. Shew
1992, Miscellaneous Field Studies Map 1539-E
No abstract available....
Interpretation of reconnaissance geochemical data from the Port Moller, Stepovak Bay, and Simeonof Island quadrangles, Alaska peninsula, Alaska
James G. Frisken
1992, Bulletin 1968
Pliocene paleoecologic reconstructions based on ostracode assemblages from the Sagavanirktok and Gubik formations, Alaskan North Slope
Elisabeth M. Brouwers
1992, Open-File Report 92-321
The Salt Chuck copper-palladium mine, Prince of Wales Island, southeastern Alaska
Hugh Richard Gault, Clyde Wahrhaftig, Robert Ahlberg Loney
1992, Open-File Report 92-293
Supplemental analytical results and sample locality map of stream-sediment and heavy-mineral-concentrate samples from the Craig Study Area; Craig, Dixon Entrance, Ketchikan, and Prince Rupert quadrangles, Alaska
D.E. Detra, J. M. Motooka, J. B. Cathrall
1992, Open-File Report 92-552
No abstract available....
