Publications
USGS research activities relevant to Alaska have yielded more than 9400 historical publications. This page features some of the most recent newsworthy research findings.
Filter Total Items: 3111
Alaska resource data file: Livengood quadrangle Alaska resource data file: Livengood quadrangle
No abstract available.
Authors
C. J. Freeman, Janet Schaefer
Alaska resource data file: Kotzebue quadrangle Alaska resource data file: Kotzebue quadrangle
No abstract available.
Authors
Anita Williams
Alaska resource data file: Blying Sound quadrangle Alaska resource data file: Blying Sound quadrangle
No abstract available.
Authors
Jeff Huber
The needs of salmon and steelhead in balancing their conservation and use The needs of salmon and steelhead in balancing their conservation and use
Over the past 100 years, Pacific salmon Oncorhynchus spp. and steelhead trout O. mykiss populations in the Pacific Northwest have experienced dramatic declines as a result of human population growth and associated development of the region's natural resources. Any strategy to reverse those declines will depend on achieving consensus among a diverse group of stakeholders willing to (1)...
Authors
Carl V. Burger
Reproductive characteristics of migratory golden eagles in Denali National Park, Alaska Reproductive characteristics of migratory golden eagles in Denali National Park, Alaska
We describe reproductive characteristics of Golden Eagles (Aquila chrysaetos) breeding in Denali National Park, Alaska during an entire snowshoe hare (Lepus americanus) cycle, 1988-1997. Data on nesting eagles were collected at 58 to 72 nesting areas annually using two aerial surveys. Surveys were conducted during the incubation period to determine occupancy and nesting activities and...
Authors
Carol L. McIntyre, Layne G. Adams
An aerial survey method to estimate sea otter abundance An aerial survey method to estimate sea otter abundance
Sea otters (Enhydra lutris) occur in shallow coastal habitats and can be highly visible on the sea surface. They generally rest in groups and their detection depends on factors that include sea conditions, viewing platform, observer technique and skill, distance, habitat and group size. While visible on the surface, they are difficult to see while diving and may dive in response to an...
Authors
James L. Bodkin, Mark S. Udevitz
Intertidal clam diversity, size, abundance, and biomass in Glacier Bay National Park and Preserve, 1999 Annual Report Intertidal clam diversity, size, abundance, and biomass in Glacier Bay National Park and Preserve, 1999 Annual Report
No abstract available.
Authors
James L. Bodkin, Kimberly A. Kloecker
Fluctuating asymmetry and genetic diversity in sea otters (Enhydra lutris) Fluctuating asymmetry and genetic diversity in sea otters (Enhydra lutris)
No abstract available.
Authors
James L. Bodkin, Kimberly A. Kloecker, A. Burdin
Measurements of Taku River, Alaska during Tulsequah Lake outburst floods Measurements of Taku River, Alaska during Tulsequah Lake outburst floods
No abstract available.
Authors
Randy H. Host, Joseph M. Dorava
Multi-year persistence of oil mousse on high energy beaches distant from the Exxon Valdez spill origin Multi-year persistence of oil mousse on high energy beaches distant from the Exxon Valdez spill origin
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 persists at sites in Katmai National Park and Preserve (NP&P) where it was stranded high...
Authors
Gail V. Irvine, Daniel H. Mann, Jeffrey W. Short
Maturation, fecundity, and intertidal spawning of Pacific sand lance in the northern Gulf of Alaska Maturation, fecundity, and intertidal spawning of Pacific sand lance in the northern Gulf of Alaska
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 year in late September and October...
Authors
Martin D. Robards, John F. Piatt, G.A. Rose
The adrenocorical stress-response of Black-legged Kittiwake chicks in relation to dietary restrictions The adrenocorical stress-response of Black-legged Kittiwake chicks in relation to dietary restrictions
In this study we examined hormonal responses of Black-legged Kittiwake (Rissatridactyla) chicks to experimental variations in energy content and nutritional quality (low or high lipid to protein ratio, LPR) of their food. Starting at the age of 10 days, chicks were fed either high or low LPR fish at 30, 50, 70 and 100% of ad libitum energy intake. After 20 days of treatment, chicks were...
Authors
A.S. Kitaysky, John F. Piatt, J.C. Wingfield, M. Romano