Seattle, WA : U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, 2018.
Book — 1 online resource (vi, 370 pages) : color illustrations, color maps.
"Defining essential habitats for fishes and invertebrates is an important step in managing groundfish species in Alaska waters. Species distribution models have been widely used to describe the potential habitat of species found in marine and terrestrial systems. The models themselves can take a number of forms, from relatively simple frameworks such as generalized linear or additive models to complex modeling frameworks such as Maximum Entropy Modeling (MaxEnt). We used several modeling methods and data from scientific surveys and commercial fisheries to define essential habitats for 36 species from the Gulf of Alaska. Adult, juvenile, larval and egg stages were seasonally modeled where data were available. Bottom depth was the dominant variable determining the distribution of most adult and juvenile life history stages. Sea surface temperature was the most important predictor of ichthyoplankton distribution. The model results were used to develop maps that depicted the boundaries delineating essential fish habitat for each species and life stage. These maps will be used for marine spatial planning and assessing impacts of anthropogenic activities in Alaska’s marine environment."--Publisher's website.
[Silver Spring, Md.] : U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Marine Fisheries Service, Alaska Fisheries Science Center, 2018.
Book — 1 online resource (19 pages) : color illustrations, color map
"This summary will provide an update on NOAA-AFSC's latest research on seal-vessel interactions jointly conducted with the National Park Service. This research builds on studies since 2002 on ice-associated harbor seals in Disenchantment Bay which have focused on proximate effects such as when, where, and at what distances vessels were causing disturbance. By employing GPS satellite tracking (for both seals and ships), we aim to address broader population-level effects, and in particular to better understand how vessels entering glacial ice habitats may approach and alter the haul-out behavior of nursing pups, thus potentially increasing their energetic costs of thermoregulation in the water. There is concern that chronic disturbances could reduce body mass of pups at weaning and survival, and ultimately impact population stability"--Page 5.
Anchorage, Alaska : U.S. Department of the Interior, Bureau of Land Management, 2013.
Book — 1 online resource (vi, 103 pages) : maps (some color). Digital: text file.PDF.
Section 810 summary
Mitigation and monitoring
Appendix A: Modifications and clarifications
Appendix B: Stipulations and required operating procedures
Appendix C: Final endangered and threatened species documentation.
This document finalizes the Bureau of Land Management's plan for managing 8.8 million acres of public land in the Northwest portion of the National Petroleum Reserve-Alaska. The decision by Secretary of the Interior Gale Norton as documented slightly modifies the BLM's preferred management alternative, which the Bureau described in a final Environmental Impact Statement on the management plan.
Version 1.0. - [Denver, Colo.?] : U.S. Dept. of the Interior, U.S. Geological Survey, 2001.
Book — 1 computer optical disc : col. ; 4 3/4 in.
Contains magnetotelluric (MT) and audiomagnetotelluric (AMT) data collected in Alaska between 1985 and 1992. The data from over 500 soundings was collected with computer systems that are now obsolete. Data collected in 23 Alaskan 1:250,000-scale sheets (quadrangles).