Radio tag retention and tag-related mortality among adult sockeye salmon
Kristina M. Ramstad, Carol Ann Woody
2003, North American Journal of Fisheries Management (23) 978-982
Tag retention and tag-related mortality are concerns for any tagging study but are rarely estimated. We assessed retention and mortality rates for esophageal radio tag implants in adult sockeye salmon Oncorhynchus nerka. Migrating sockeye salmon captured at the outlet of Lake Clark, Alaska, were implanted with one of four different...
Landslides and liquefaction triggered by the M 7.9 denali fault earthquake of 3 November 2002
E. L. Harp, R.W. Jibson, R. E. Kayen, D. K. Keefer, B.L. Sherrod, G. A. Carver, B.D. Collins, R.E.S. Moss, N. Sitar
2003, GSA Today (13) 4-10
The moment magnitude (M) 7.9 Denali Fault earthquake in Alaska of 3 November 2002 triggered an unusual pattern of landslides and liquefaction effects. The landslides were primarily rock falls and rock slides that ranged in volume from a few cubic meters to the 40 million-cubic-meter rock avalanche that covered much...
Aggradation of gravels in tidally influenced fluvial systems: Upper Albian (Lower Cretaceous) on the cratonic margin of the North American Western Interior foreland basin
Richard L. Brenner, Greg A. Ludvigson, B.L. Witzke, P.L. Phillips, T. S. White, David F. Ufnar, Luis A. Gonzalez, R. M. Joeckel, A. Goettemoeller, B.R. Shirk
2003, Cretaceous Research (24) 439-448
Alluvial conglomerates were widely distributed around the margin of the Early Cretaceous North American Cretaceous Western Interior Seaway (KWIS). Conglomerates, sandstones, and lesser amounts of mudstones of the upper Albian Nishnabotna Member of the Dakota Formation were deposited as fill-in valleys that were incised up to 80 m into upper...
Arctic transitions in the Land - Atmosphere System (ATLAS): Background, objectives, results, and future directions
A. D. McGuire, M. Sturm, F. S. Chapin III
2003, Journal of Geophysical Research D: Atmospheres (108)
This paper briefly reviews the background, objectives, and results of the Arctic Transitions in the Land-Atmosphere System (ATLAS) Project to date and provides thoughts on future directions. The key goal of the ATLAS Project is to improve understanding of controls over spatial and temporal variability of terrestrial processes in the...
Modeling soil thermal and carbon dynamics of a fire chronosequence in interior Alaska
Q. Zhuang, A. D. McGuire, K. P. O’Neill, J.W. Harden, V.E. Romanovsky, J. Yarie
2003, Journal of Geophysical Research D: Atmospheres (108) FFR 3-1-FFR 3-26
In this study, the dynamics of soil thermal, hydrologic, and ecosystem processes were coupled to project how the carbon budgets of boreal forests will respond to changes in atmospheric CO2, climate, and fire disturbance. The ability of the model to simulate gross primary production and ecosystem respiration was verified for...
Life and death of the resurrection plate: Evidence for its existence and subduction in the northeastern Pacific in Paleocene-Eocene time
Peter J. Haeussler, Dwight Bradley, Ray E. Wells, Marti L. Miller
2003, Geological Society of America Bulletin (115) 867-880
Onshore evidence suggests that a plate is missing from published reconstructions of the northeastern Pacific Ooean in Paleocene- Eocene time. The Resurrection plate, named for the Resurrection Peninsula ophiolite near Seward, Alaska, was located east of the Kula plate and north of the Farallon plate. We interpret coeval near-trench magmatism...
Monitoring in the nearshore: A process for making reasoned decisions
James L. Bodkin, T.A. Dean
2003, Report, EVOS Restoration Project 030687 Final Report
Over the past several years, a conceptual framework for the GEM nearshore monitoring program has been developed through a series of workshops. However, details of the proposed monitoring program, e.g. what to sample, where to sample, when to sample and at how many sites, have yet to be determined. In...
Deformation and the timing of gas generation and migration in the eastern Brooks Range foothills, Arctic National Wildlife Refuge, Alaska
T. M. Parris, R.C. Burruss, P. B. O’Sullivan
2003, American Association of Petroleum Geologists Bulletin (87) 1823-1846
Along the southeast border of the 1002 Assessment Area in the Arctic National Wildlife Refuge, Alaska, an explicit link between gas generation and deformation in the Brooks Range fold and thrust belt is provided through petrographic, fluid inclusion, and stable isotope analyses of fracture cements integrated with zircon fission-track...
Two distinct phylogenetic clades of infectious hematopoietic necrosis virus overlap within the Columbia River basin
K.A. Garver, R.M. Troyer, Gael Kurath
2003, Diseases of Aquatic Organisms (55) 187-203
Infectious hematopoietic necrosis virus (IHNV), an aquatic rhabdovirus, causes a highly lethal disease of salmonid fish in North America. To evaluate the genetic diversity of IHNV from throughout the Columbia River basin, excluding the Hagerman Valley, Idaho, the sequences of a 303 nt region of the glycoprotein gene (mid-G) of...
The 1997 eruption of Okmok Volcano, Alaska: A synthesis of remotely sensed imagery
M.R. Patrick, J. Dehn, K.R. Papp, Z. Lu, K. Dean, L. Moxey, P. Izbekov, R. Guritz
2003, Journal of Volcanology and Geothermal Research (127) 87-105
Okmok Volcano, in the eastern Aleutian Islands, erupted in February and March of 1997 producing a 6-km-long lava flow and low-level ash plumes. This caldera is one of the most active in the Aleutian Arc, and is now the focus of international multidisciplinary studies. A synthesis of remotely sensed data...
Deciphering the social structure of Marbled Murrelets from behavioral observations at sea
Suzann G. Speckman, John F. Piatt, Alan M. Springer
2003, Waterbirds (26) 266-274
We surveyed Marbled Murrelets (Brachyramphus marmoratus) daily from small boats in Auke Bay and Fritz Cove, Alaska, from May through August 1992 and 1993. Differences in numbers of juveniles and in the timing of their presence in the study area between the two years indicated that breeding phenology was late...
Post-breeding distribution of Long-tailed Ducks Clangula hyemalis from the Yukon-Kuskokwim Delta, Alaska
Margaret R. Petersen, B. J. McCaffery, Paul L. Flint
2003, Wildfowl (54) 103-113
Breeding populations of Long-tailed Ducks Clangula hyemalis have declined in western Alaska, particularly on the Yukon-Kuskokwim (Y-K) Delta, and the species is currently considered a species of particular concern by the U.S. Fish & Wildlife Service in Alaska. Potential factors that may have contributed to this decline that occurred away...
Living on the edge: Distribution of Dungeness crab Cancer magister in a recently deglaciated fjord
S. James Taggart, P.N. Hooge, Jennifer Mondragon, Elizabeth Ross Hooge, A.G. Andrews
2003, Marine Ecology Progress Series (246) 241-252
Glacier Bay, Alaska, has supported a productive Dungeness crab fishery, although the area where the fishery occurred was small relative to the remainder of the Bay. We hypothesized that 1 or more abiotic limiting factors prevented crabs from surviving in the upper Bay. We tested this hypothesis by systematically sampling...
Recurring middle Pleistocene outburst floods in east-central Alaska
D.G. Froese, D.G. Smith, J.A. Westgate, T. A. Ager, S.J. Preece, A. Sandhu, R.J. Enkin, F. Weber
2003, Quaternary Research (60) 50-62
Recurring glacial outburst floods from the Yukon-Tanana Upland are inferred from sediments exposed along the Yukon River near the mouth of Charley River in east-central Alaska. Deposits range from imbricate gravel and granules indicating flow locally extending up the Yukon valley, to more distal sediments consisting of at least 10...
Coupled heat and fluid flow modeling of the Carboniferous Kuna Basin, Alaska: Implications for the genesis of the Red Dog Pb-Zn-Ag-Ba ore district
G. Garven, Jeff P. Raffensperger, Julie A. Dumoulin, D.A. Bradley, L. E. Young, K.D. Kelley, D. L. Leach
2003, Conference Paper, Journal of Geochemical Exploration
The Red Dog deposit is a giant 175 Mton (16% Zn, 5% Pb), shale-hosted Pb-Zn-Ag-Ba ore district situated in the Carboniferous Kuna Basin, Western Brooks Range, Alaska. These SEDEX-type ores are thought to have formed in calcareous turbidites and black mudstone at elevated sub-seafloor temperatures (120-150??C) within a hydrogeologic framework...
Correlates to survival of juvenile sea otters in Prince William Sound, Alaska, 1992-1993
Brenda E. Ballachey, James L. Bodkin, S. Howlin, A. M. Doroff, A.H. Rebar
2003, Canadian Journal of Zoology (81) 1494-1510
We estimated survival of sea otters (Enhydra lutris) for 1 year post weaning during 1992-1993 in Prince William Sound (PWS), location of the 1989 Exxon Valdez oil spill. We sampled 38 pups in eastern PWS (EPWS), an unoiled area occupied by sea otters for <15 years, and 33 pups from...
Using 1-Hz GPS data to measure deformations caused by the denali fault earthquake
K.M. Larson, P. Bodin, J. Gomberg
2003, Science (300) 1421-1424
The 3 November 2002 moment magnitude 7.9 Denali fault earthquake generated large, permanent surface displacements in Alaska and large-amplitude surface waves throughout western North America. We find good agreement between strong ground-motion records integrated to displacement and 1-hertz Global Positioning System (GPS) position estimates collected ??? 140 kilometers from the...
Habitat characteristics of polar bear terrestrial maternal den sites in northern Alaska
George M. Durner, Steven C. Amstrup, Anthony S. Fischbach
2003, Arctic (56) 55-62
Polar bears (Ursus maritimus) give birth to and nurture their young in dens of ice and snow. During 1999-2001, we measured the structure of 22 dens on the coastal plain of northern Alaska after polar bear families had evacuated their dens in the spring. During the summers of 2001 and...
Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and Sarcocystis canis-like infections in marine mammals
J. P. Dubey, R. Zarnke, N. J. Thomas, S.K. Wong, W. Vanbonn, M. Briggs, J.W. Davis, R. Ewing, M. Mense, O. C. H. Kwok, S. Romand, P. Thulliez
2003, Veterinary Parasitology (116) 275-296
Toxoplasma gondii, Neospora caninum, Sarcocystis neurona, and S. canis are related protozoans that can cause mortality in many species of domestic and wild animals. Recently, T. gondii and S. neurona were recognized to cause encephalitis in marine mammals. As yet, there is no report of natural exposure of N. caninum...
Molecular status of the dusky Canada goose (Branta canadensis occidentalis): A genetic assessment of a translocation effort
Sandra L. Talbot, John M. Pearce, Barbara J. Pierson, Dirk V. Derksen, Kim T. Scribner
2003, Conservation Genetics (4) 367-381
Until recently, the dusky Canada goose (Branta canadensis occidentalis) was managedas one breeding population from the CopperRiver Delta (CRD), Alaska. Population numberson the CRD have declined precipitously over thelast three decades, due in part to changes inhabitat. In 1981, a pair of Canada geese,presumably B.c. occidentalis, wasreported...
Magma supply dynamics at Westdahl volcano, Alaska, modeled from satellite radar interferometry
Z. Lu, Timothy Masterlark, D. Dzurisin, Russ Rykhus, C. Wicks Jr.
2003, Journal of Geophysical Research B: Solid Earth (108)
A group of satellite radar interferograms that span the time period from 1991 to 2000 shows that Westdahl volcano, Alaska, deflated during its 1991-1992 eruption and is reinflating at a rate that could produce another eruption within the next several years. The rates of inflation and deflation are approximated by...
Effect of analytical conditions in wavelength dispersive electron microprobe analysis on the measurement of strontium-to-calcium (Sr/Ca) ratios in otoliths of anadromous salmonids
Christian E. Zimmerman, Roger L. Nielsen
2003, Fishery Bulletin (101) 712-718
The use of strontium-to-calcium (Sr/Ca) ratios in otoliths is becoming a standard method to describe life history type and the chronology of migrations between freshwater and seawater habitats in teleosts (e.g. Kalish, 1990; Radtke et al., 1990; Secor, 1992; Rieman et al., 1994; Radtke, 1995; Limburg, 1995; Tzeng et al....
Late Quaternary vegetation and climate history of the central Bering land bridge from St. Michael Island, western Alaska
T. A. Ager
2003, Quaternary Research (60) 19-32
Pollen analysis of a sediment core from Zagoskin Lake on St. Michael Island, northeast Bering Sea, provides a history of vegetation and climate for the central Bering land bridge and adjacent western Alaska for the past ???30,000 14C yr B.P. During the late middle Wisconsin interstadial (???30,000-26,000 14C yr B.P.)...
Marrow fat deposition and skeletal growth in caribou calves
Layne G. Adams
2003, Journal of Wildlife Management (67) 20-24
I evaluated rates of marrow fat deposition and skeletal growth of caribou (Rangifer tarandus granti) calves through 20 days of age at Denali National Park, Alaska, USA. Both were negatively correlated with late winter snowfall, indicating the prolonged effects of maternal undernutrition following severe winters. Using regression analyses, I found...
Bear-human interactions at Glacier Bay National Park and Preserve: Conflict risk assessment
Tom S. Smith, Terry D. DeBruyn, Tania Lewis, Rusty Yerxa, Steven T. Partridge
2003, Alaska Park Science (2) 20-25
Many bear-human conflicts have occurred in Alaska parks and refuges, resulting in area closures, property damage, human injury, and loss of life. Human activity in bear country has also had negative and substantial consequences for bears: disruption of their natural activity patterns, displacement from important habitats, injury, and death. It...
