Incidental catch of marine birds and mammals in fishing nets off Newfoundland, Canada
John F. Piatt, David N. Nettleship
1987, Marine Pollution Bulletin (18) 344-349
Summer surveys of the incidental catch of marine birds and mammals in fishing nets around the east coast of Newfoundland indicated that over 100 000 animals were killed in nets during a 4-year period (1981–1984). Composition of catches depended on foraging behaviour, regional abundance, and the degree of foraging aggregation...
Copulation and mate guarding in the Northern Fulmar
Scott A. Hatch
1987, The Auk (104) 450-461
I studied the timing and frequency of copulation in mated pairs and the occurrence of extra-pair copulation (EPC) among Northern Fulmars (Fulmarus glacialis) for 2 yr. Copulation peaked 24 days before laying, a few days before females departed on a prelaying exodus of about 3 weeks. I estimated that females...
Development and evaluation of a system for tracking wildlife by satellite
S.G. Fancy, L.F. Pank, David C. Douglas, Catherine H. Curby, Gerald W. Garner, Steven C. Amstrup, Wayne L. Regelin
Mary Rose, editor(s)
1987, Conference Paper, Herbivore nutrition research: Research papers presented at the second International symposium on the nutrition of herbivores
No abstract available....
An inexpensive device for recording animal behavior
Craig R. Ely
1987, Wildlife Society Bulletin (15) 264-265
Recording animal behavior is tedious and time consuming when behaviors are recorded on tape and transcribed to data sheets. Data loggers circumvent these problems, but can be prohibitively expensive and may require extensive programming (see Hensler et al. [1986]). I describe an inexpensive, efficient alternative for recording behavioral observations....
Columbia Glacier, Alaska: Changes in velocity 1977-1986
R. M. Krimmel, B. H. Vaughn
1987, Journal of Geophysical Research Solid Earth (92) 8961-8968
The Columbia Glacier, a grounded, iceberg-calving tidewater glacier near Valdez, Alaska, began to retreat about 1977. Drastic retreat occurred in 1984, and by early 1986, retreat amounted to 2 km. The glacier has thinned more than 100 m since 1974 at a point 4 km behind the 1974 terminus position....
Anchor ice, seabed freezing, and sediment dynamics in shallow arctic seas
E. Reimnitz, E. W. Kempema, P. W. Barnes
1987, Journal of Geophysical Research-Oceans (92) 14671-14678
Diving investigations confirm previous circumstantial evidence of seafloor freezing and anchor ice accretion during freeze-up storms in the Alaskan Beaufort Sea. These related bottom types were found to be continuous from shore to 2-m depth and spotty to 4.5-m depth. Spotty anchor ice occurred as pillow-shaped crystal aggregates on buried...
Geology and origin of the Death Valley uranium deposit, Seward Peninsula, Alaska
Kendell A. Dickinson, Kenneth D. Cunningham, Thomas A. Ager
1987, Economic Geology (82) 1558-1574
A uranium deposit discovered in 1977 in western Alaska, by means of airborne radiometric data, is the largest known in Alaska on the basis of industry reserve estimates. At about latitude 65 degrees N, it is the most northerly known sandstone-type uranium deposit in the world. The deposit lies in...
Coal deposits of the United States
Nelson W. John
1987, International Journal of Coal Geology (8) 355-365
The coal fields of the Unites States can be divided into six major provinces. The Appalachian and Interior Provinces contain dominantly bituminous coal in strata of Pennsylvanian age. The coal seams are relatively thin and are mined both by surface and...
Mortalities of kelp-forest fishes associated with large oceanic waves off central California, 1982-1983
James L. Bodkin, Glenn R. VanBlaricom, Ronald J. Jameson
1987, Environmental Biology of Fishes (18) 73-76
Observations of three incidents of the mass mortality of nearshore fishes are reported; each corresponded to periods of high-amplitude, long-period swells during the 1982-1983 El Niño event along the coast of central California. Members of the nearshore kelp forest fish assemblage, primarily of the genus Sebastes, accounted for 96%...
Ice erosion of a sea-floor knickpoint at the inner edge of the stamukhi zone, Beaufort Sea, Alaska
P. W. Barnes, J.L. Asbury, D.M. Rearic, C.R. Ross
1987, Marine Geology (76) 207-222
In 1981 and 1982, detailed bathymetric and side-scan sonar surveys were made of an area of the sea floor north of Prudhoe Bay, Alaska, to study the changing characteristics of the seabed at the inner boundary of the stamukhi zone, the...
Gravity anomaly at a Pleistocene lake bed in NW Alaska interpreted by analogy with Greenland's Lake Taserssauq and its floating ice tongue
D.F. Barnes
1987, Journal of Geophysical Research Solid Earth (92) 8976-8984
A possible example of a very deep glacial excavation is provided by a distinctive gravity low located at the front of a valley glacier that once flowed into glacial Lake Aniuk (formerly Lake Noatak) in the western Brooks Range. Geologic and geophysical data suggest that sediments or ice filling a...
Gray whale and walrus feeding excavation on the Bering Shelf, Alaska
C.H. Nelson, K.R. Johnson, J. H. Barber Jr.
1987, Journal of Sedimentary Petrology (57) 419-430
Sidescan sonar has been used to delineate benthic feeding structures of the California gray whale ( Eschrichtius robustus ) and Pacific walrus ( Odobenus rosmarus divergens ) on the northeastern Bering Shelf. The gray whales (average mouth length, 2.0 m), when suction feeding...
Fabric and its relation to sedimentologic and physical properties of near-surface sediment, Shelikof Strait and Alsek prodelta, Alaska
M.E. Torresan, W. C. Schwab
1987, Journal of Sedimentary Petrology (57) 408-418
To investigate the possible relation between the fabric (microstructural arrangement of particles) of a fine-grained sedimentary deposit and the depositional and environmental processes of that deposit, the fabric of sediment samples from the sea floor of two different depositional settings, Shelikof Strait and...
Faces from the past: Frederic Morton Chamberlain (1867-1921), pioneer fishery biologist of the American West
M.R. Jennings
1987, Fisheries (12) 22-29
The life of Frederic Morton Chamberlain (1867–1921) was marked by his many contributions to fishery science. As an assistant with the old U.S. Bureau of Fisheries, he pioneered life history studies of salmon in California and Alaska, and assisted in the collection of hundreds of thousands of natural history specimens...
New perspectives on the eruption of 1912 in the valley of ten thousand smokes, Katmai National Park, Alaska
W. Hildreth
1987, Bulletin of Volcanology (49) 680-693
New data extend our understanding of the 1912 eruption, its backfilled vent complex at Novarupta, and magma-storage systems beneath adjacent stratovolcanoes. Initial Plinian rhyolite fallout is confined to a narrow downwind sector, and its maximum thickness may occur as far as 13 km from source. In contrast, the partly contemporaneous...
Autumn staging of cackling Canada geese on the Alaska Peninsula
James S. Sedinger, Karen S. Bollinger
1987, Wildfowl (38) 13-18
Cackling Canada Geese Branta canadensis minima undergo a long (2,800 km) migration between their autumn staging areas on the Alaska Peninsula and wintering areas in Oregon and California. Adults and young lost an average of 543 g during this migratory flight. Weight gains between fledging and autumn migration are essential...
Evaluation of the stability of gas hydrates in Northern Alaska
A. Kamath, S. P. Godbole, R. D. Ostermann, T. S. Collett
1987, Cold Regions Science and Technology (14) 107-119
The factors which control the distribution of in situ gas hydrate deposits in colder regions such as Northern Alaska include; mean annual surface temperatures (MAST), geothermal gradients above and below the base of permafrost, subsurface pressures, gas composition, pore-fluid salinity and the soil condition. Currently existing data on the above...
Devastating tsunami inspires efforts to reduce future tsunami destruction
P. A. Lockridge
1987, Earthquakes & Volcanoes (USGS) (19) 60-64
The beacon from landmark Scotch Cap lighthouse pierced the moonless night of April 1, 1946, in Alaska's remote Aleutain Island chain. In the reinforced concrete lighthouse, five men were engaged in various support operations connected with the maintenance of the 80,000 candlepower beam. Perched atop a building constructed 5 years...
Three volcanoes erupt in Alaska
T. P. Miller
1987, Earthquakes & Volcanoes (USGS) (19) 192-198
Alaska has over 40 historically active volcanoes and normally averages one eruption a year. Alaskan volcanoes were unusually active in 1986. Augustine, Pavlof, and Akutan volcaneos all erupted vigorously; at one time in April, all three were erupting. ...
Petrogenesis of gabbronorite at Yakobi and northwest Chichagof Islands, Alaska
G. R. Himmelberg, R. A. Loney, P.I. Nabelek
1987, Geological Society of America Bulletin (98) 265-279
On Yakobi Island and at Mirror Harbor on the northwest coast of Chichagof Island, gabbronorite occurs as irregular bodies, as much as 5.5 km in maximum dimension, mostly within a 40 to 43 m.y. composite pluton consisting largely of tonalite. The gab-bronorites are the host rocks for a magmatic nickel-copper...
Analysis of time series of glacier speed: Columbia Glacier, Alaska
R. A. Walters, W. W. Dunlap
1987, Journal of Geophysical Research Solid Earth (92) 8969-8975
During the summers of 1984 and 1985, laser measurements were made of the distance from a reference location to markers on the surface of the lower reach of Columbia Glacier, Alaska. The data have numerous gaps, mostly because of inclement weather. The laser measurements were corrected for variations in atmospheric...
Earthquakes; November-December 1987
W. J. Person
1987, Earthquakes & Volcanoes (USGS) (19) 218-221
There were two major earthquakes during the last two months of the year, both in the Gulf of Alaska. Earthquake-related deaths were reported from Mexico, Japan and Indonesia. Southern California was hit by two strong earthquakes; both caused damage and some injuries. ...
Common Murre (Uria aalge) attendance patterns at Cape St. Mary's, Newfoundland
John F. Piatt, Ruth L. McLagan
1987, Canadian Journal of Zoology (65) 1530-1534
Attendance patterns of common murres (Uria aalge) at Cape St. Mary's, Newfoundland, were observed during hatching to post-fledging periods of 1980 to 1984. Six study plots on breeding ledges (ca. 450 birds total) and a "club" on the water were monitored for seasonal fluctuations in numbers attending. Attendance on ledges...
Dehydration of seabird prey during transport to the colony: Effects on wet weight energy densities
W.A. Montevecchi, John F. Piatt
1987, Canadian Journal of Zoology (65) 2822-2824
We present evidence to indicate that dehydration of prey transported by seabirds from capture sites at sea to chicks at colonies inflates estimates of wet weight energy densities. These findings and a comparison of wet and dry weight energy densities reported in the literature emphasize the importance of (i) accurate...
Adult survival and productivity of Northern Fulmars in Alaska
Scott A. Hatch
1987, The Condor (89) 685-696
The population dynamics of Northern Fulmars (Fulmarus glacialis) were studied at the Semidi Islands in the western Gulf of Alaska. Fulmars occurred in a broad range of color phases, and annual survival was estimated from the return of birds in the rarer plumage classes. A raw estimate of mean annual...
