T. Heyne, B. Tribbey, M.L. Brooks, J. Smith
1991, California Fish and Game (77) 53-54
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Page 4373, results 109301 - 109325
Publication Extents
Not all publications have extents, not all extents are completely accurateT.M. Herndon, S. D. McCormick, H. A. Bern
1991, General and Comparative Endocrinology (83) 283-289
Effects of prolactin on morphology and numbers of chloride cells in the opercular membrane of seawater-adapted tilapia (Oreochromis mossambicus) have been examined. Following five daily injections of ovine prolactin at a dose of 10 μg · g body wt−1, blood samples were taken and opercular membranes were removed and stained...
S. D. McCormick, T. Sakamoto, S. Hasegawa, T. Hirano
1991, Journal of Endocrinology (130) 87-92
The ability of insulin-like growth factor-I (IGF-I), insulin and GH to promote hypoosmoregulatory ability was examined in juvenile rainbow trout (Oncorhynchus mykiss). Following adaptation to 12 parts per thousand (p.p.t.) seawater for 5 days, fish were given a single injection of hormone or vehicle, then exposed to 29 p.p.t. for...
W.R. Garstka, W.E. Cooper Jr., K.W. Wasmund, J.E. Lovich
1991, Comparative Biochemistry and Physiology, Part A: Molecular & Integrative Physiology (98) 271-280
Survey of androgens and estrogens in serum, liver and testes of male yellow-bellied slider turtles, Trachemys (= Pseudemys) scripta, a species exhibiting dissociated gametogenesis age-dependent melanism, revealed the presence of numerous androgen precursors, androgens, androgen metabolites, and estrogens in quantities varying with season, tissue, and male coloration.The most commonly found...
Kim A. Keating, Wayne G. Brewster, Carl H. Key
1991, Journal of Wildlife Management (55) 160-171
t: We used 10 Telonics ST-3 platform transmitter terminals (PTT's) configured for wolves and ungulates to examine the performance of the Argos satellite telemetry system. Under near-optimal conditions, 68 percentile errors for location qualities (NQ) 1, 2, and 3 were 1,188, 903, and 361 m, respectively. Errors (rE) exceeded expected...
G.D. Wylie, J.R. Jones
1991, Journal of Freshwater Ecology (6) 431-437
We used water quality information from 103 Missouri reservoirs to assess their sensitivity to acidification from acidic atmospheric deposition. Total alkalinity less than 20 mg/L or a Calcite Saturation Index (CSI) of 1.0 or greater were the criteria to classify reservoirs as sensitive to acidification. Most of the...
W. F. Krise, R. L. Herman
1991, Journal of Aquatic Animal Health (3) 248-253
Juvenile Atlantic salmon Salmo salar and lake trout Salvelinus namaycush of different sizes were exposed for 96 h to water supersaturated with air. Underyearlings (Atlantic salmon shorter than 66 ± 8 mm [mean total length ± SD] and lake trout shorter than 96 mm) were resistant to high dissolved-gas pressures....
W. H. Orem, W. C. Burnett, W.M. Landing, W.B. Lyons, W. Showers
1991, Limnology and Oceanography (36) 526-543
The major postdepositional change in the sedimentary organic matter is carbohydrate biodegradation. Lignin and aliphatic substances are preserved in the sediments. Dissolved organic matter in pore waters is primarily composed of carbohydrates, reflecting the degradation of sedimentary carbohydrates. Rate constants for organic carbon degradation and sulfate reduction in sediments of...
E.V. Axtmann, S. N. Luoma
1991, Applied Geochemistry (6) 75-88
Historic discharges from the mining and smelting complex at the head-waters of the Clark Fork River have resulted in elevated Ag, Cd, Cu, Pb and Zn concentrations in the <60 μm fraction of both bed and flood-plain sediments of the river. Processes affecting the trends in longitudinal distributions of these...
T. W. H. Backman
1991, Canadian Journal of Botany (69) 1361-1371
The relation between environmental factors and leaf morphology of Zostera marina L. have long been unclear, primarily because the species is intrinsically variable. The common-garden method was used to determine the genetic, environmental, and interaction components of leaf size variation. Zostera marina consists of several ecotypes with a wide range of phenotypic plasticity. Variation...
C. A. Lemm, D. P. Lemarie
1991, Aquaculture (99) 117-126
The nutritional value of Artemia nauplii from the Great Salt Lake was effectively improved for larval striped bass (Morone saxatilis) by incorporation of unsaturated fatty acids (20: 5n-3 and 22: 6n-3) into the nauplii by the direct method of enrichment. Survival at 24 days post-hatch increased from 23% to 64% when...
H. A. Poston
1991, Progressive Fish-Culturist (53) 7-10
A 16‐week feeding experiment was conducted to measure the effects of supplemental dietary aluminum (0, 25, 50, 100, 500, 1,000, 1,500, and 2,000 mg/kg diet) on growth, survival, feed conversion, and proximate composition of Atlantic salmon (Salmo salar), mean weight 4.8 g. No significant differences (P > 0.05) in growth, survival,...
G.G. Scoppettone, G. Vinyard
1991, Book chapter, Battle against extinction: Native fish management in the American West
No abstract available...
Robert E. Gill Jr., Richard B. Lanctot, J.D. Mason, Colleen M. Handel
1991, Wader Study Group Bulletin (61) 23-36
Results from an intensive survey in 1989 of one of the two known breeding localities of Bristle-thighed Curlews Numenius tahitiensis are reported. During the pre-nesting period birds confined most of their activity to two vegetation communities: shrub meadow tundra and low shrub/tussock tundra. During nesting more than half the Curlews...
James W. Bingham
1991, Water-Resources Investigations Report 85-4276
The valley of Anguilla Brook is underlain by saturated stratified-drift deposits that, where thick and transmissive, have the potential to yield large quantities of ground water. These deposits are collectively termed the Anguilla Brook aquifer. Long-term yields of four subareas within this aquifer are estimated to range from less than...
S.J. Williams, S. Penland, A. H. Sallenger Jr., R.A. McBride, J.L. Kindlinger
1991, Conference Paper, Coastal sediments '91
A study of the barrier islands and wetlands in the deltaic plain of Louisiana is presented. Its purpose was to document rapid changes and to learn more about the processes responsible and the geologic framework within which they operate. It included systematic collection and analysis of precision nearshore hydrographic data,...
Gregory M. Clark, Robert S. Williams Jr.
1991, Water Resources Bulletin (27) 93-100
Batch-mixing experiments were used to help identify lithologic and mineralogic sources of increased concentrations of dissolved solids in water affected by surface coal mining in northwestern Colorado. Ten overburden core samples were analyzed for mineral composition and mixed with distilled water for 90 days until mineral-water equilibrium was reached. Between...
A. Keith Turner, Elisabeth M. Ervin, Joe S. Downey
Anon, editor(s)
1991, Conference Paper, High Level Radioactive Waste Management
Fully three-dimensional representations of the geologic system at Yucca Mountain have been developed using a Geoscientific Information System, which is an expansion of a traditional Geographic Information Systems. These advanced, three dimensional, representations of Yucca Mountain are required to adequately evaluate the complex geologic and hydrologic conditions surrounding the site....
Guy Gelfenbaum
1991, Conference Paper, Coastal Sediments '91
Most of the storm surge models presented in the literature are vertically averaged and calculate only the sea-surface elevation and mean flow. Whereas these models may be adequate for predicting storm surge heights for flooding purposes, they neglect the vertical structure of the flow and the boundary shear stress, which...
E.T. Endo, T. Murray
1991, Bulletin of Volcanology (53) 533-545
Seismicity is one of the most commonly monitored phenomena used to determine the state of a volcano and for the prediction of volcanic eruptions. Although several real-time earthquake-detection and data acquisition systems exist, few continuously measure seismic amplitude in circumstances where individual events are difficult to recognize or where volcanic...
Gene W. Parker, Leslie A. DeSimone
1991, Conference Paper, Air-Water Mass Transfer
Multiple-regression techniques were used to derive the reaeration coefficients estimating equation for low sloped streams: K2 = 3.83 MBAS-0.41 SL0.20 H-0.76, where K2 is the reaeration coefficient in base e units per day; MBAS is the methylene blue active substances concentration in milligrams per liter; SL is the water-surface slope...
A. H. Hofstra
1991, Geology (19) 36-40
Integrated geologic, geochemical, fluid-inclusion, and stableisotope studies of the gold deposits in the Jerritt Canyon district, Nevada, provide evidence that gold deposition was a consequence of both fluid mixing and sulfidization of host-rock iron. Chemical-reaction-path models of these ore-depositional processes confirm that the...
Brent D. Turrin, Duane E. Champion
Anon, editor(s)
1991, Conference Paper, High Level Radioactive Waste Management
K-Ar and 40Ar/39Ar ages from the Lathrop Wells volcanic center, Nevada, and from the Cima volcanic field, California, indicate that the recently reported 20-ka age estimate for the Lathrop Wells volcanic center is incorrect. Instead an age of 119??11 to 141??10 ka is indicated for the Lathrop Wells volcanic center....
Water Resources Division, U.S. Geological Survey
1991, Report
This catalog is a list of (1) books and maps that were published during 1991, and (2) articles by Geological Survey personnel in non-Geological Survey journals and books that came to our attention in 1991; it supplements the permanent catalogs "Publications of the Geological Survey, 1879-1961", "Publications of the Geological...
Anthony J. Crone, Kathleen M. Haller
1991, Journal of Structural Geology (13) 165-176
The range-front normal faults of the Lost River and Lemhi Ranges, and the Beaverhead and Tendoy Mountains in east-central Idaho and southwestern Montana have well-preserved fault scarps on Quaternary deposits along much of their lengths. Fault-scarp morphology, the age of deposits displaced by the faults, and the morphology of the...