Acute gastric dilatation and volvulus in a free-living polar bear
Steven C. Amstrup, Carol A. Nielsen
1989, Journal of Wildlife Diseases (25) 601-604
A large, adult male polar bear (Ursus maritimus) was found dead on a barrier island north of Prudhoe Bay, Alaska (USA), in June 1987. There were no external signs of trauma. A twisted distended stomach, distinctive parenchymal and fascial congestion, and significant difficulty in repositioning the...
Effect of rearing density on poststocking survival of lake trout in Lake Ontario
Joseph H. Elrod, David E. Ostergaard, Clifford P. Schneider
1989, Progressive Fish-Culturist (51) 189-193
Six paired lots of yearling lake trout (Salvelinus namaycush) reared at densities of 41,000 and 51,000 fish per raceway during their last 9 months in the hatchery were stocked in Lake Ontario. Poststocking survival of the high-density (HD) and low-density (LD) fish was not different for the 1982 year-class. However,...
[Book review] The natural history of the Point Reyes Peninsula, by J. Evans
Gary M. Fellers
1989, Wildflower (1989) 28-29
Review of: The natural history of the Point Reyes Peninsula. J. Evans. Point Reyes National Seashore Association (June 1988). ISBN: 9999705820....
Comparative studies of macrophages in salmonids
A.J. Becker Jr., L. Kobbe, K.S. Squibb, W. F. Krise
1989, Conference Paper, American Zoologist
No abstract available at this time...
Determination of arsenic and selenium in whole fish by continuous-flow hydride generation atomic absorption spectrophotometry
W. G. Brumbaugh, M.J. Walther
1989, Journal of the Association of Official Analytical Chemists (72) 484-486
A combined wet chemical and dry ash digestion and use of a continuous- flow hydride generator coupled with a flame-heated quartz cell enabled the simple, precise, and highly automated atomic absorption determination of arsenic and selenium in tissues of whole fish. Percent relative standard deviation averaged 4% for each element;...
Baleen whales and their prey in a coastal environment
John F. Piatt, David A. Methven, Alan E. Burger, Ruth L. McLagan, Vicki Mercer, Elizabeth Creelman
1989, Canadian Journal of Zoology (67) 1523-30
Patterns of abundance of humpback (Megaptera novaeangliae), fin (Balaenoptera physalus), and minke (Balaenoptera acutorostrata) whales are described in relation to the abundance of their primary prey, capelin (Mallotus villosus), during 1982–1985 at Witless Bay, Newfoundland. The abundance ratio of the three whale species was 10:1:3.5, respectively. Abundance of all whale...
Compilation of hydrologic data for the Edwards aquifer, San Antonio area, Texas, 1988, with 1934-88 summary
G.M. Nalley
1989, Edwards Underground Water District Bulletin 48
No abstract available....
Criteria for a sediment data set
Douglas G. Glysson
1989, Conference Paper
The transport of sediment through a hydrologic system or basin is an extremely complex phenomenon. Many factors affect this movement. Criteria are established for an 'ultimate' or complete sediment data set, and guidelines are given for the collection of alluvial data. The paper describes what parameters need to be measured...
Cytopathology and coagulopathy associated with viral erythrocytic necrosis in chum salmon
John R. MacMillian, D. Mulcahy, M.L. Landolt
1989, Journal of Aquatic Animal Health (1) 255-262
The 8-month cytopathologic progression of viral erythrocytic necrosis (VEN) disease in chum salmon Oncorhynchus keta is described. Single to multiple acidophilic, cytoplasmic viral inclusion bodies developed first in mature erythrocytes and then, within 1–2 months, all morphologically identifiable hemopoietic cell types contained VEN inclusions. Cytologic analysis indicated that multinucleate giant...
Remote characterization of marine bird habitats with satellite imagery
J. Christopher Haney
1989, Colonial Waterbirds (12) 67-77
Remote sensing techniques such as radar altimetry, synthetic aperture radar, coastal zone color scanning, and infrared radiometry provide effective, instantaneous, and relatively inexpensive means for characterizing critical habitats of marine birds. In order to make optimal use of satellite-derived data, the rationale for marine habitat classification is presented, and advantages...
Paleomagnetic study of the Eastern Klamath terrane, California, and implications for the tectonic history of the Klamath Mountains Province
Edward A. Mankinen, William P. Irwin, C. Sherman Gromme
1989, Journal of Geophysical Research B: Solid Earth (94) 10444-10472
Paleomagnetic study of Permian through Jurassic volcanic and sedimentary strata of the Eastern Klamath terrane has shown the remanent magnetization of many of these rocks to be prefolding and most likely primary. Similarities in magnetic declinations recorded by coeval strata over a broad area are consistent with the hypothesis that...
Pb, Sr, and Nd isotopes in seamount basalts from the Juan de Fuca Ridge and Kodiak-Bowie seamount chain, northeast Pacific
E. Hegner, M. Tatsumoto
1989, Journal of Geophysical Research Solid Earth (94) 17839-17846
Pb, Sr, and Nd isotopic ratios and their parent/daughter element concentrations for 28 basalts from 10 hotspot and nonhotspot seamounts are reported. Nd and Sr isotopic compositions (143Nd/144Nd = 0.51325–0.51304; 87Sr/86Sr = 0.70237–0.70275) plot in the envelope for Juan de Fuca-Gorda ridge basalts with tholeiitic basalts showing more depleted sources and...
Sequoias, past and future
N.L. Stephenson
1989, Sequoia Bark (16)
No abstract available at this time...
The use of non-riparian habitats by least Bell's vireos (Vireo bellii pusillus)
B.E. Kus, K.L. Miner
1989, General Technical Report PSW-110
No abstract available at this time...
Status of the flora and fauna on the Nevada Test Site in 1987
R.B. Hunter, P.A. Medica
1989, Technical Report DOE/NV/10630-2
No abstract available at this time...
Are extrusive rhyolites produced from permeable foam eruptions?
I. Friedman
1989, Bulletin of Volcanology (51) 69-71
The permeable foam hypothesis is suggested by Eichelberger el al. (1986) to explain a major loss of water from rhyolithic magmas in the volcanic conduit. Evidence for the high-water content of the major portion of the magmas is herein examined and rejected. Eichelberger's hypothesis does not take into account the...
Plumbing the depths of batholiths
E-An Zen
1989, American Journal of Science (289) 1137-1157
No abstract available....
Least squares estimation of avian molt rates
Douglas H. Johnson
1989, Biometrics (45) 657-661
A straightforward least squares method of estimating the rate at which birds molt feathers is presented, suitable for birds captured more than once during the period of molt. The date of molt onset can also be estimated. The method is applied to male and female mourning doves....
Iron-sulfur-carbon relationships in organic-carbon-rich sequences I: Cretaceous Western Interior seaway
Walter E. Dean, Michael A. Arthur
1989, American Journal of Science (289) 708-743
No abstract available....
Disposition of pentachlorophenol in rainbow trout (Salmo gairdneri): Effect of inhibition of metabolism
G. R. Stehly, W. L. Hayton
1989, Aquatic Toxicology (14) 131-148
The accumulation kinetics of pentachlorophenol (PCP) were investigated in rainbow trout (Salmo gairdneri) in the absence and presence of 25 mg/1 salicylamide, an inhibitor of PCP metabolism. After exposure to 5 μg/1 PCP over 1–96 h, the amount of PCP in the whole fish, its concentration in water and the...
Geochemical evidence for Paleozoic oil in Lower Cretaceous O Sandstone, northern Denver basin
J.L. Clayton
1989, American Association of Petroleum Geologists Bulletin (73) 977-988
Organic geochemical properties of the oil produced from the Lower Cretaceous O sandstone on the eastern flank of the Denver basin indicate that this oil has been derived from a different source rock than other Cretaceous oils in the basin. O sandstone oil is characterized by low pristane/phytane ratio, high...
Earthquakes, January-February 1989
W. J. Person
1989, Earthquakes & Volcanoes (USGS) (21) 125-127
there were no major earthquakes (7.0-7.9) during the first 2 months of the year. the USSR was the only country reporting earthquake-related deaths during this period. In the United States a magnitude 5.0 earthquake in southern California on Januray 19 caused several injuries and minor damage. ...
Retention and transport of nutrients in a third-order stream in northwestern California; hyporheic processes
F.J. Triska, V. C. Kennedy, R.J. Avanzino, G. W. Zellweger, K.E. Bencala
1989, Ecology (70) 1893-1905
Chloride and nitrate were coinjected into the surface waters of a third—order stream for 20 d to examine solute retention, and the fate of nitrate during subsurface transport. A series of wells (shallow pits) 0.5—10 m from the adjacent channel were sampled to estimate the lateral interflow of water. Two...
Origin and transport of chloride in superheated geothermal steam
A.H. Truesdell, J.R. Haizlip, H. Armannsson, F. D’Amore
1989, Geothermics (18) 295-304
Hydrogen chloride (HCl) is a known component of some volcanic gases and volcanic-related hydrothermal systems. It has recently been discovered in superheated steam in exploited geothermal systems, usually as a result of HCl-induced corrosion of well casing and steam gathering systems....
State and local response to damaging land subsidence in United States urban areas
T.L. Holzer
1989, Engineering Geology (27) 449-466
Land subsidence caused by man-induced depressuring of underground reservoirs has occurred in at least nine urban areas in the United States. Significant efforts to control it have been made in three areas: Long Beach, California; Houston-Galveston, Texas; and Santa Clara Valley, California. In these areas coastal flooding and its control...
