James L. Bodkin, Kimberly A. Kloecker
1999, Report
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Publication Extents
Not all publications have extents, not all extents are completely accurateJames L. Bodkin, Kimberly A. Kloecker, A. Burdin
1999, Report
C.C. Krueger, R.L. Wilmot, R.J. Everett
1999, Transactions of the American Fisheries Society (128) 49-57
Anadromous northern Dolly Varden Salvelinus malma support a summer subsistence fishery in Beaufort Sea coastal waters. These same waters coincide with areas of oil and gas exploration and development. The purpose of this study was to assess variation in stock origins of Dolly Varden collected from sites along 400 km...
J.M. Dorava, A.M. Milner
1999, Environmental Management (23) 217-230
Numerous drainages supporting productive salmon habitat are surrounded by active volcanoes on the west side of Cook Inlet in south-central Alaska. Eruptions have caused massive quantities of flowing water and sediment to enter the river channels emanating from glaciers and snowfields on these volcanoes. Extensive damage to riparian and aquatic...
J.L. Nielsen
1999, ICES Journal of Marine Science (56) 449-458
Changes in genetic variation across a species range may indicate patterns of population structure resulting from past ecological and demographic events that are otherwise difficult to infer and thus provide insight into evolutionary development. Genetic data is used, drawn from 11 microsatellite loci amplified from anadromous steelhead (Oncorhynchus mykiss) sampled...
F. D. Hostettler, R.J. Rosenbauer, K.A. Kvenvolden
1999, Conference Paper, Organic Geochemistry
Geochemical correlation and differentiation of hydrocarbons from crude oils and coals is difficult. The complex mixture of the hydrocarbon constituents and the dynamic nature of these constituents in the environment as they weather contribute to this difficulty A new parameter, the polycyclic aromatic hydrocarbon (PAH) refractory index, is defined here...
R.V. Densmore, G.P. Juday, J.C. Zasada
1999, Canadian Journal of Forest Research (29) 413-423
Site-preparation and regeneration methods for white spruce (Picea glauca (Moench) Voss) were tested near Fairbanks, Alaska, on two upland sites which had been burned in a wildfire and salvage logged. After 5 and 10 years, white spruce regeneration did not differ among the four scarification methods but tended to be...
J.W. Short, K.A. Kvenvolden, P.R. Carlson, F. D. Hostettler, R.J. Rosenbauer, B.A. Wright
1999, Environmental Science & Technology (33) 34-42
The source of the background hydrocarbons in benthic sediments of Prince William Sound (PWS), AK, where the 1989 Exxon Valdez oil spill (EVOS) occurred, has been ascribed to oil seeps in coastal areas of the Gulf of Alaska (GOA). We present evidence that coal is a more plausible source, including...
R. W. Saltus, T. L. Hudson, G. G. Connard
1999, GSA Today (9) 1-6
A new, publicly available aeromagnetic data compilation spanning Alaska enables analysis of the regional crustal character of this tectonically diverse and poorly understood part of the North American Cordillera. The merged data were upward-continued by 10 km (mathematically smoothed without assumptions about sources) to enhance crustal-scale magnetic features and facilitate...
Hiroyuki Kumagai, B. A. Chouet
1999, Geophysical Journal International (138)
Long-period (LP) events have been widely observed in relation to magmatic and hydrothermal activities in volcanic areas. LP waveforms characterized by their harmonic signature have been interpreted as oscillations of a fluid-filled resonator, and mixtures of liquid and gas in the form of bubbly liquids have been mainly assumed for...
Stephani Zador, John F. Piatt
1999, Condor (101) 149-152
We observed Common Murres (Uria aalge) at two breeding sites in lower Cook Inlet, Alaska, to determine whether food availability was reflected in their time-budgets at each colony. Catches of forage fish in nets and relative biomass were greater around a murre colony that has been increasing for the past...
Mark S. Udevitz
Gerald W. Garner, Steven C. Amstrup, Jeffrey L. Laake, Bryan F.J. Manly, Lyman L. McDonald, Donna G. Robertson, editor(s)
1999, Conference Paper, Marine mammal survey and assessment methods
Surveys of aggregation sites can provide unbiased estimates of annual trends in population size if the proportion of the population counted at these sites does not vary systematically among years. However, counts at these sites tend to be highly variable and resulting trend estimates typically have poor precision. I developed...
Susan M. Karl
1999, Open-File Report 96-53
No abstract available....
Cameron Rombach
1999, Open-File Report 99-354
No abstract available....
Rosa Meehan, G. Vernon Byrd, George J. Divoky, John F. Piatt
Gunter Weller, Patricia A. Anderson, editor(s)
1999, Conference Paper, Assessing the consequences of climate change for Alaska and the Bering Sea region
Seabirds are prominent and highly visible components of marine ecosystems that will be affected by global climate change. The Bering Sea region is particularly important to seabirds; populations there are larger and more diverse than in any similar region in North America—over 90% of seabirds breeding in the continental United...
John Watermolen
1999, Report
This data set has been superseded by huc2m. This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to...
John Watermolen
1999, Report
This file contains hydrologic unit boundaries and codes for the conterminous United States along with Alaska, Hawaii, Puerto Rico and the U.S. Virgin Islands. It was revised for inclusion in the National Atlas of the United States of America, and updated to match the streams file created by the USGS...
Andrei G. Degtyarev, S.M. Sleptsov, S.P. Troev, John M. Pearce, Margaret R. Petersen
1999, Casarca (5) 249-262
No abstract available....
Roseann V. Densmore, Kenneth F. Karle
1999, Conference Paper, Proceedings: High altitude revegetation workshop No. 13; Information series no. 89
Placer mining for gold has severely disturbed many riparian ecosystems in northern regions. We are conducting a long-term project to test methods to promote restoration of a placer-mined watershed in Denali National Park and Preserve. The project included hydrological restoration of the unstable and excessively confined stream with heavy equipment....
Martin D. Robards, Jill A. Anthony, George A. Rose, John F. Piatt
1999, Journal of Experimental Marine Biology and Ecology (242) 245-258
Mean dry-weight energy values of adult Pacific sand lance (Ammodytes hexapterus) peaked in spring and early summer (20.91 kJg−1 for males, 21.08 kJg−1 for females), then declined by about 25% during late summer and fall (15.91 kJg−1 for males, 15.74 kJg−1 for females). Late summer declines in energy density paralleled...
R. Ian Goudie, Margaret R. Petersen, Gregory J. Robertson
1999, Occasional Paper of the Canadian Wildlife Service
In November 1995... a full-day symposium on the biology of sea ducks was held. The papers in this volume were presented at this symposium. It is hoped that by synthesizing this information, more informed management decisions for sea ducks may emerge. The symposium contents help to emphasize the seriousness of...
Gail V. Irvine, Daniel H. Mann, Jeffrey W. Short
1999, Marine Pollution Bulletin (38) 572-584
For at least 5 yr after the Exxon Valdez spill, relatively unweathered oil mousse has persisted on the exposed rocky shores of Shelikof Strait 500 km from Prince William Sound, Alaska. Previously it was thought that oil would be rapidly removed from such geomorphic settings by wave action. Oil mousse...
Julie A. Dumoulin
1999, Open-File Report 98-34-CC
Carboniferous and older carbonate rocks are potential hydrocarbon reservoir facies for four plays in the 1002 area of the Arctic National Wildlife Refuge. These rocks include several units in the pre-Carboniferous basement and the Carboniferous Lisburne Group. Data from exploratory wells west of the 1002 area, outcrops south of the...
Peter J. Haeussler, L. Dilley
1999, Book chapter, American Institute of Professional Geologists Annual Meeting Field Trip
No abstract available....
Martin D. Robards, John F. Piatt, G.A. Rose
1999, Journal of Fish Biology (54) 1050-1068
Pacific sand lance Ammodytes hexapterus in Kachemak Bay, Alaska, showed no sexual dimorphism in length-to-weight (gonad-free) ratio or length-at-age relationship. Most matured in their second year, males earlier in the season than females, but females (31%) attained a higher gonadosomatic index than males (21%). Sand lance spawned intertidally once each...