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: 3099
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
Tsunami generation by pyroclastic flow during the 3500-year B.P. caldera-forming eruption of Aniakchak Volcano, Alaska Tsunami generation by pyroclastic flow during the 3500-year B.P. caldera-forming eruption of Aniakchak Volcano, Alaska
A discontinuous pumiceous sand, a few centimeters to tens of centimeters thick, is located up to 15 m above mean high tide within Holocene peat along the northern Bristol Bay coastline of Alaska. The bed consists of fine-to-coarse, poorly to moderately well-sorted, pumice-bearing sand near the top of a 2-m-thick peat sequence. The sand bed contains rip-up clasts of peat and tephra and is...
Authors
Christopher F. Waythomas, Christina A. Neal
Preliminary geologic map of the Chugach National Forest special study area, Alaska Preliminary geologic map of the Chugach National Forest special study area, Alaska
In 1990, both the U.S. Geological Survey and U.S. Bureau of Mines were contacted by the Chugach National Forest (CNF) for the purpose of providing mineral resource information for the CNF Master Plan during the planning period fiscal years 1991-1994. This information is to address the terms and requirements of the 1986 Settlement Agreement and to provide mineral and geologic information...
Authors
Steven W. Nelson, Marti L. Miller, Peter J. Haeussler, Lawrence W. Snee, Patti J. Philips, Carol Huber
Managing Pacific salmon escapements: The gaps between theory and reality Managing Pacific salmon escapements: The gaps between theory and reality
There are myriad challenges to estimating intrinsic production capacity for Pacific salmon populations that are heavily exploited and/or suffering from habitat alteration. Likewise, it is difficult to determine whether perceived decreases in production are due to harvest, habitat, or hatchery influences, natural variation, or some combination of all four. There are dramatic gaps between...
Authors
E. Eric Knudsen
Alaska resource data file: Tanacross quadrangle Alaska resource data file: Tanacross quadrangle
No abstract available.
Authors
Cheryl Cameron
Sustainable fisheries management: Pacific salmon Sustainable fisheries management: Pacific salmon
What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. This collection of papers examines the state of...
Alaska resource data file: Ketchikan quadrangle Alaska resource data file: Ketchikan quadrangle
No abstract available.
Authors
H. C. Berg
Vocalizations of the Kittlitz's Murrelet Vocalizations of the Kittlitz's Murrelet
We present the first documentation of Kittlitz's Murrelet (Brachyramphus brevirostris) vocalizations, based on recordings made in Glacier Bay, Alaska, in 1994. We identified two apparently related types of calls: groan and quack. The Kittlitz's Murrelet calls were markedly different from the most common calls of the congeneric Marbled Murrelet (Brachyramphus marmoratus), but shared...
Authors
Thomas I. van Pelt, John F. Piatt, Gus B. Van Vliet
Populations and productivity of seabirds at South Marble Island, Glacier Bay, Alaska, during May-July, 1999 Populations and productivity of seabirds at South Marble Island, Glacier Bay, Alaska, during May-July, 1999
In the course of directed research on glaucous-winged gulls, we investigated the numbers and activities of all breeding and non-breeding seabirds associated with South Marble Island in Glacier Bay, Alaska, during mid-May to late July, 1999. Most observations were made from the island; additional observations were made during transportation to and from the island. Data were collected on...
Authors
Stephani Zador, John F. Piatt
Behaviour and ecology of sea ducks Behaviour and ecology of sea ducks
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 some conservation issues facing sea ducks, notably the possible endangerment of...
Authors
R. Ian Goudie, Margaret R. Petersen, Gregory J. Robertson
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
Geology of Unga Island and the northwestern part of Popof Island: Chapter 2 in A geological and geophysical study of the gold-silver vein system of Unga Island, Southwestern Alaska Geology of Unga Island and the northwestern part of Popof Island: Chapter 2 in A geological and geophysical study of the gold-silver vein system of Unga Island, Southwestern Alaska
The first geologic map of Unga Island was published by Atwood (1911; scale 1:250,000), who correctly inferred the middle Tertiary age of the volcanic rocks and made the important distinction between the lava flows and the intrusive domes. Although Burk's (1964) reconnaissance map of the Alaska Peninsula (scale 1:250,000) has been modified in some respects, it does correct Atwood's map by...
Authors
James R. Riehle, Frederic H. Wilson, Nora B. Shew, Willis H. White