Growth and survival of Atlantic salmon fed various starter diets
C. A. Lemm, M. A. Hendrix
1981, Progressive Fish-Culturist (43) 195-199
Growth and survival were compared for groups of first‐feeding fry of Atlantic salmon (Salmo salar) fed various commercially available and experimental starter diets. In two separate 8‐ to 9‐week studies, survival was highest (more than 90%) in fish fed a semimoist closed‐formula commercial diet (BioDiet). In one study, fish grew...
Two-mica granites of northeastern Nevada
D. E. Lee, R. W. Kistler, I. Friedman, R. E. Van Loenen
1981, Journal of Geophysical Research Solid Earth (86) 10607-10616
The field settings are described and analytical data are presented for six two-mica granites from north-eastern Nevada. High δ18O and 87Sr/86Sr values indicate that all are S-type granites, derived from continental crust. The major element chemistry and accessory mineral contents of these rocks also are characteristic of S-type granites. Chemical, X...
Textural and structural evidence for a predeformation hydrothermal origin of the Tungsten Queen Deposit, Hamme District, North Carolina
M. P. Foose, J. F. Slack, T. Casadevall
1980, Economic Geology (75) 515-522
The Hamme tungsten district is composed of a series of steeply dipping quartz-wolframite veins in the Piedmont of North Carolina. Veins are concentrated near the border of the lower Paleozoic Vance County pluton, along its western contact with green-schist-facies metapelites and metavolcanic rocks of the Carolina slate belt. One of...
Effects of diet on survival and growth of the Atlantic silverside
A.D. Beck, Hugh A. Poston
1980, Progressive Fish-Culturist (42) 138-143
Effects of two live and seven prepared diets on the survival and growth of postlarval and juvenile Atlantic silversides (Menidia menidia) were determined. Two experiments were conducted, one with 23-day-old postlarvae and one with 57-day-old juveniles. In both experiments, growth rate and survival were greatest on the live diet of brine shrimp (Artemia salina) nauplii. Survival was lowest...
[Book review] Endangered Birds: Management techniques for preserving threatened species
R.C. Erickson
1980, The Auk (97) 209-209
This volume contains the proceedings of a symposium held at the University of Wisconsin-Madison, during 17-20 August 1977. In the words of the book's editor, Stanley Temple, the symposium "offered a unique opportunity for leading scientists from around the world to meet and share their experiences with endangered birds." That...
Serologic and hematologic values of wild coyotes in Wisconsin
G. J. Smith, O.J. Rongstad
1980, Journal of Wildlife Diseases (16) 491-497
Blood samples were obtained from 30 coyotes (Canis latrans) captured in northern Wisconsin in conjunction with radio-telemetry studies. Samples were assayed for seven hematologic values, seven serum chemistries, serum albumin, globulin and total protein. Results are given with respect to sex and age and are compared with available data for...
Consistency in habitat preference of forest bird species
B.R. Noon, D.K. Dawson, D.B. Inkley, C.S. Robbins, S.H. Anderson
1980, Transactions of the North American Wildlife and Natural Resources Conference (45) 226-244
The important management conclusion that follows from our results is that the habitat requirements of most forest bird species, although quite specific for each species, apply generally throughout their breeding ranges. Thus a habitat management program that proves beneficial in one part of the breeding range of a species...
Toxic effects of endrin and toxaphene on the southern leopard frog Rana sphenocephala
R.J. Hall, D. Swineford
1980, Environmental Pollution (Series A) (23) 53-65
Eggs, larvae and sub-adults of the southern leopard frog Rana sphenocephala were exposed to endrin and toxaphene. Exposure was in water by a continuous-flow technique, following standards that have been used successfully in the study of fish and invertebrates. R. sphenocephala is more sensitive to both pesticides than are higher vertebrates but is slightly...
Reproduction and residue accumulation in black ducks fed toxaphene
S. D. Haseltine, M. T. Finley, E. Cromartie
1980, Archives of Environmental Contamination and Toxicology (9) 461-471
Three sets of 15 pairs of black ducks (Anas rubripes) were given 0, 10, or 50 ppm toxaphene in a dry mash diet for a period of 19 months, which included two breeding seasons. Survival of adults was not affected, but the weights of treated males were depressed during the...
Paleolimnology of two lakes in the Klutlan Glacier region, Yukon Territory, Canada
J.P. Bradbury, M.C. Whiteside
1980, Quaternary Research (14) 149-168
Lakes developed on progressively younger end moraines of the Klutlan Glacier were initially assumed to have originated shortly after moraine emplacement and to have persisted to the present. Limnological differences between lakes on old vs young moraines were thought to result from limnological maturation within the lakes and ponds themselves...
Identification of bedforms in lower Cook Inlet, Alaska
A.H. Bouma, M.L. Rappeport, R.C. Orlando, M. A. Hampton
1980, Sedimentary Geology (26) 157-177
The seafloor of the central part of lower Cook Inlet, Alaska, is characterized by the presence of different sizes and types of bedforms. The bedforms in the sandy sediments include straight-crested to sinuous to lunate ripples, small, medium, and large sand waves, sand ridges, sand ribbons, and sand patches. In...
Development and use of a mathematical model of the San Bernardino Valley ground-water basin, California
William F. Hardt, C. B. Hutchinson
1980, Open-File Report 80-576
Part of the San Bernardino urbanized area in California overlies formerly swampy lands with a history of flowing wells. This area , upgradient from and adjacent to the San Jacinto fault, contains a zone in an alluvial ground-water basin that is under artesian pressure. Since 1945, withdrawals have exceeded recharge...
Grinnell and Sperry Glaciers, Glacier National Park, Montana: A record of vanishing ice
Arthur Johnson
1980, Professional Paper 1180
Grinnell and Sperry Glaciers, in Glacier National Park, Mont., have both shrunk considerably since their discovery in 1887 and 1895, respectively. This shrinkage, a reflection of climatic conditions, is evident when photographs taken at the time of discovery are compared with later photographs. Annual precipitation and terminus-recession measurements, together with...
Hydrologic analysis of the proposed Badger-Beaver Creeks artificial-recharge project: Morgan County, Colorado
Alan W. Burns
1980, Water-Resources Investigations Report 80-46
A hydrologic analysis of the proposed Badger-Beaver Creeks artificial-recharge project in Morgan County, Colo., was made with the aid of three digital computer models: A canal-distribution model, a ground-water flow model, and a stream-aquifer model. Statistical summaries of probable diversions from the South Platte River based on a 27-year period...
Geothermal resources in the Banbury Hot Springs area, Twin Falls County, Idaho
R.E. Lewis, H.W. Young
1980, Open-File Report 80-563
Thermal water (30.0 to 72.0 degrees Celsius) is produced from 26 wells and 2 springs in the vicinity of Banbury Hot Springs near Buhl, Idaho. Thermal water is used for space heating of private residences, catfish and tropical fish production, greenhouse operation, swimming pools, and therapeutic baths. In 1979, 10...
The microzonation of the Memphis, Tennessee area
Sunil Sharma, William D. Kovacs
1980, Open-File Report 80-914
Although the probability of a major earthquake in the central U.S. is only one-tenth of the Californian events, any such event is expected to result in damage ten times greater than that anticipated in California. The city of Memphis, which is situated very close to the inferred epicenter of one...
Water resources of the Port Gamble Indian Reservation, Washington
W. E. Lum II
1980, Water-Resources Investigations Report 79-66
This report provides information on the water resources of the Port Gamble Indian Reservation, Washington, including ground- and surface-water quality and quantity data and interpretations of the data. This information was gathered to provide a base for management and protection of the water resources of the reservation.Ground water in the...
Trends in the distribution of recent foraminifera in San Francisco Bay
R.E. Arnal, P. J. Quinterno, T. J. Conomos, Ralph Gram
1980, Cushman Foundation Special Publication (19) 17-39
Much of the bathymetry of the southern part of San Francisco Bay reflects the drainage pattern of late Pleistocene streams. Holocene estuarine silt and clay cover most of the bay floor; relict eolian and deltaic sand occurs along the eastern shore; sandy patches are present in the main channel owing...
Aeromagnetic and radio echo ice-sounding measurements show much greater area of the Dufek intrusion, Antarctica
John C. Behrendt, D.J. Drewry, E. Jankowski, M. S. Grim
1980, Science (209) 1014-1017
A combined aeromagnetic and radio echo ice-sounding survey made in 1978 in Antarctica over the Dufek layered mafic intrusion suggests a minimum area of the intrusion of about 50,000 square kilometers, making it comparable in size with the Bushveld Complex of Africa. Comparisons of the magnetic and...
Pollution ecology of breeding great blue herons in the Columbia Basin, Oregon and Washington
L. J. Blus, Charles J. Henny, T. E. Kaiser
1980, Murrelet (61) 63-71
Approximately 40 pairs of Great Blue Herons (Ardea herodias) formerly nested in trees on or near Blalock Island about 95 km downstream from Richland, Washington, in the Columbia River (Nehls 1972 ). In conjunction with construction of the John Day Lock and Dam and before creating Lake Umatilla in 1968,...
Stability of sulfur slopes on Io
Gary D. Clow, M. H. Carr
1980, Icarus (44) 268-279
The mechanical properties of elemental sulfur are such that the upper crust of Io cannot be primarily sulfur. For heat flows in the range 100–1000 ergs cm−2, sec−1, sulfur becomes ductile within several hundred meters of the surface and would prevent the formation of calderas with depths greater than this....
Need for new sensors to map lithologic units
Lawrence C. Rowan
Anthony R. Barringer, editor(s)
1980, Sixth Annual Pecora Symposium and Exposition 106-107
One of the most important contributions that remote sensing can make to mineral energy explorations to provide data from satellites to augment regional geological mapping. Geologic maps, which show information on the subsurface, are the main basis for formulating models of resource genesis that guide exploration. However, conventional...
Ecological survey of the night monkey, Aotus trivirgatus, in Formosa Province, Argentina
G. B. Rathbun, M. Gache
1980, Primates (21) 211-219
Transect surveys were carried out in northern Argentina during October and November 1977 in order to determine the distribution and abundance ofAotus trivirgatus. The monkeys were seen in pairs with one to two recent young and occurred at a density of approximately six family groups/km2.Aotus was only found in relatively moist,...
The 1977 eruption of Kilauea volcano, Hawaii
R. B. Moore, Rosalind Tuthill Helz, D. Dzurisin, G. P. Eaton, R. Y. Koyanagi, P. W. Lipman, J. P. Lockwood, G. S. Puniwai
1980, Journal of Volcanology and Geothermal Research (7) 189-210
Kilauea volcano began to erupt on September 13, 1977, after a 21.5-month period of quiescence. Harmonic tremor in the upper and central east rift zone and rapid deflation of the summit area occurred for 22 hours before the outbreak of surface activity. On the first night, spatter ramparts formed along...
Crystallization history of Kilauea Iki lava lake as seen in drill core recovered in 1967-1979
Rosalind Tuthill Helz
1980, Bulletin Volcanologique (43) 675-701
Kilauea Iki lava lake formed during the 1959 summit eruption, one of the most picritic eruptions of Kilauea Volcano in the twentieth century. Since 1959 the 110 to 122 m thick lake has cooled slowly, developing steadily thickening upper and lower crusts, with a lens of more molten lava in...
