J. P. Fleskes
1991, Prairie Naturalist (23) 49-50
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Page 4371, results 109251 - 109275
Publication Extents
Not all publications have extents, not all extents are completely accurateGary M. Fellers, Virginia Norris
1991, Park Science (11) 20-21
J. W. van Wagtendonk
1991, Fire Management Notes (52) 10-15
H. A. Poston, R.C. Williams
1991, Progressive Fish-Culturist (53) 111-113
A 4‐week trial was conducted to determine the optimal feeding level in percent body weight of a commercially prepared, practical diet for early feeding fry of Atlantic salmon (Salmo salar) in an ozonated water reuse system at 17–18°C. Triplicate groups of swimup (0.19‐g) fry were fed one of seven levels...
L.A. Ford
1991, Journal of Wildlife Diseases (27) 557-561
Motile aeromonads are ubiquitous aquatic bacteria that can cause motile aeromonad septicemia (MAS), a disease which affects channel catfish and can produce significant economic loss. Motile aeromonads isolated from commercially-raised channel catfish were screened for production of S-layer protein in order to evaluate...
Maria E. Markiw
1991, Aquaculture (92) 1-6
Various developmental stages of eyed eggs and newly hatched sac fry of rainbow trout (Oncorhynchus mykiss) were exposed to several concentrations of laboratory produced spores of the triactinomyxon stage of Myxobolus cerebralis, the infective stage of salmonid whirling disease. Exposed eggs and sac fry and appropriate unexposed controls were examined microscopically...
S. G. Hughes
1991, Aquaculture (93) 57-62
A 12-week feeding study was conducted to determine if either whole or dehulled lupin flour could be used as an economical replacement for full-fat soybean meal (FFSM) in a ration for rainbow trout (Oncorhynchus mykiss) and to determine if it was necessary to replace the soybean oil lost when FFSM...
C. Schonewald-Cox, R. Azari, S. Blume
1991, Conservation Biology (5) 491-495
Many mammalian carnivores are in local or global decline. To slow this process, continued planning to protect these species is warranted, Still, the data bases that we have at our disposal do not adequately document population requirements for space at scales appropriate for conservation planning. To illustrate this problem, we...
D.B. Wangaard, John P. McDonell, Carl V. Burger, R.L. Wilmot
1991, Progressive Fish-Culturist (53) 251-255
Laboratory simulation of water temperature regimes that occur in subarctic rivers through winter necessitates the ability to maintain near‐freezing conditions. A heat‐exchanging apparatus is described that provided a convenient means of simulating the range of temperatures (0.5–12°C) that incubating eggs of salmon (Oncorhynchus spp.) typically experience in south‐central Alaskan watersheds. The...
H. A. Poston
1991, Progressive Fish-Culturist (53) 224-228
First‐feeding Atlantic salmon (Salmo salar) were fed different levels (0, 2, 4, 6, and 8% of diet) of feed‐grade lecithin with and without 0.3% supplemental choline in a diet containing a sodium proteinate form of autoclaved isolated soybean protein. After 14 weeks at 9.2°C, Atlantic salmon fed 6% lecithin with...
James L. Bodkin, Ronald J. Jameson
1991, Canadian Journal of Zoology (69) 1149-1155
At monthly intervals from February 1980 through December 1986, a 14.5-km section of central California coastline was systematically surveyed for beach-cast carcasses of marine birds and mammals. Five hundred and fifty-four bird carcasses and 194 marine mammal carcasses were found. Common murres, western grebes, and Brandt's cormorants composed 45% of...
H. A. Poston
1991, Progressive Fish-Culturist (53) 85-90
Fry of rainbow trout (Oncorhynchus mykiss) were fed, from first feeding (mean weight, 0.12 g), basal diets containing either a nonautoclaved (raw) sodium proteinate form of isolated soy protein (ISP) or the same ISP autoclaved at 0.56 kg/cm2 and l 10°C for 30 min. In the three‐way factorial, 16‐week study, I...
S. G. Hughes
1991, Progressive Fish-Culturist (53) 15-17
The feed intake of first‐feeding spring chinook salmon (Oncorhynchus tshawytscha) changed significantly when the amino acid glycine or the ammonium‐containing trimethylamine was added to experimental diets in a 2‐week feeding trial. Glycine enhanced feed consumption, whereas trimethylamine (which occurs in rancid fish meals and oils) decreased it. This effect of...
G. L. Rumsey, J.E. Kinsella, K. J. Shetty, S. G. Hughes
1991, Animal Feed Science and Technology (33) 177-183
The potential of using yeast nitrogen in fish feeds to replace proteins from conventional sources is an attractive option to nutritionists, feed manufacturers and fish farmers. Experiments were conducted to determine the effects of high dietary levels of brewer's dried yeast, with 20% of its protein represented by nucleic acid...
W. B. Collins, T. S. Smith
1991, Arctic (44) 217-222
Various methods were investigated for assessing the relationship between wind-hardened snow (upsik) and forage availability to reindeer. Mean bottom area of individual craters was not a function of depth, hardness or integrated hardness. Individual crater area was partially dependent on specific cratering time (r2 = .60). Cratering time per active...
T. D. Swindle, J. N. Grossman, C.T. Olinger, D.H. Garrison
1991, Geochimica et Cosmochimica Acta (55) 3723-3734
We have performed INAA, petrographie, and noble gas analyses on seventeen chondrules from the Semarkona meteorite (LL3.0) primarily to study the relationship of the I-Xe system to other measured properties. We observe a range of ≥10 Ma in apparent I-Xe ages....
R. L. Herman, H. L. Kincaid
1991, Progressive Fish-Culturist (53) 157-161
Lake trout (Salvelinus namaycush) and Atlantic salmon (Salmo salar) fed 30 mg β‐estradiol/kg of feed for 100 d from first feeding had liver and kidney pathology similar to but much less severe than that previously reported for rainbow trout (Oncorhynchus mykiss). Mortality was not affected. Both lake trout and Atlantic...
P.A.H. Scowen, P.L. Roeder, Rosalind Tuthill Helz
1991, Contributions to Mineralogy and Petrology (107) 8-20
Chromite mainly occurs as tiny inclusions within or at the edges of olivine phenocrysts in the 1959 Kilauea Iki lava lake. Liquilus chromite compositions are only preserved in scoria that was rapidly quenched from eruption temperatures. Analyses of drill core taken from the lava lake in 1960, 1961, 1975, 1979,...
M. Ehlers, D. D. Greenlee, T. Smith, J. Star
1991, Photogrammetric Engineering and Remote Sensing (57) 669-675
CT: Theintegration of remote sensing tools and technology with the spatial analysis orientation of geographic information systems is a complex task. In this paper, we focus on the issues of making data available and useful to the user. In part, this involves a set of problems which reflect on the...
William N. Batts, Marsha L. Landolt, James R. Winton
1991, Applied and Environmental Microbiology (57) 1379-1385
The fish rhabdovirus infectious hematopoietic necrosis virus (IHNV) was rapidly inactivated by extremely low concentrations of iodine in water. A 99.9% virus reduction was obtained in 7.5 s when virus (105PFU/ml) and iodine (0.1 mg/liter, final concentration) were combined in distilled-deionized or hatchery water. Iodine efficacy decreased at pHs greater...
J. L. Bartholomew, M.R. Arkoosh, J. S. Rohovec
1991, Journal of Aquatic Animal Health (3) 254-259
The specificity of the antibody response of salmonids to Renibacterium salmoninarum antigens was demonstrated by western blotting techniques that utilized a monoclonal antibody against salmonid immunoglobulin. In this study, the specificity of the response in immunized chinook salmon Oncorhynchus tshawytschawas compared with the response in naturally infected chinook salmon and...
R.E. Stoiber
1991, Earthquakes & Volcanoes (USGS) (22) 147-148
Volcanologists are accustomed to looking at the record in the rocks to read volcanic history. They map the extent of airfalls, the thickness and distribution of ignimrites and mudflows, and the nature and extent of lava flows. From these data they infer the story of previous eruptive episodes that are...
J. Oliver
1991, Earthquakes & Volcanoes (USGS) (22) 106-108
When I was a graduate student around 1950 I used to read the entire Bulletin of the Seismological Society of America. it was a pwoerful and inspiring educational experience, with an effect quite different from that of the more usual process of looking up a few articles in the chain...
D. W. Folger
1991, Conference Paper, Geological hazards: Proceedings of Beijing International Symposium
No abstract available....
H. Sigurdsson
1991, Earthquakes & Volcanoes (USGS) (22) 142-146
Ever since 1935, when C.F Richter devised the earthquake magnitude scale that bears his name, seismologists have been able to view energy release from earthquakes in a systematic and quantitative manner. The benefits have been obvious in terms of assessing seismic gaps and the spatial and temporal trends of earthquake...