James L. Bodkin, L.B. Browne
1992, California Fish and Game (78) 136-144
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Page 4258, results 106426 - 106450
Publication Extents
Not all publications have extents, not all extents are completely accurateJ. R. Winton
1992, Report, Proceedings of U.S.-Japan meeting on aquaculture
No abstract available ...
Arthur D. Bradfield
1992, Water-Resources Investigations Report 92-4018
The hydrology of Cave Springs, the second largest spring in East Tennessee was investigated from July 1987 to September 1989. Wells near the spring supply about 5 million gallons per day of potable water to people in Hamilton County near Chattanooga. Discharge from the spring averaged about 13.5 cubic feet...
D. V. Rottiers, Lori A. Redell, H.E. Booke, S. Amaral
1992, Transactions of the American Fisheries Society (121) 132-136
American shad Alosa sapidissima from the Columbia River on the Pacific coast and the Delaware River on the Atlantic coast were reared from 3 June to 24 October 1986 in two adjacent hypalon‐lined ponds. Although fish from the Columbia River were introduced into ponds 29 d after those from the Delaware River,...
C. F. Chung, Donald A. Singer, W. David Menzie
1992, Economic Geology (87) 1174-1179
A critical part of the exploration for mineral deposits or of quantitative mineral resource assessments is the estimation of how large undiscoveredeposits might be. Typically, this problem is addressed using grade and tonnage models in which a major source of variation in possible sizes is accounted for by the differences...
C. F. Chung, C. W. Jefferson, D.A. Singer
1992, Economic Geology (87) 194-197
No abstract available....
John E. Miller, Jacqueline F. Savino, Robert K. Neely
1992, Journal of Freshwater Ecology (7) 127-136
Interspecific competition for a food resource (fish eggs) was examined in a laboratory setting between two common benthic organisms of the Great Lakes, the slimy sculpin (Cottus cognatus) and crayfish (Orconectes virilis). In monospecific tests, the median egg predation in aquarium microcosms ranged from 2.5 eggs/d for the...
Larry J. Schmidt, Robert J. Hesselberg
1992, Archives of Environmental Contamination and Toxicology (23) 37-44
The 209 polychlorinated biphenyl (PCB) congeners exhibit a wide range in toxicity to fish, birds, and mammals. This paper discusses the use of gas chromatography/mass spectrometry negative chemical ionization (GC/MS-NCI) to quantify congeners of highly suspected toxicity such as IUPAC #77 (3,3',4,4'-tetrachlorobiphenyl) and #126 (3,3',4,4',5-pentachlorobiphenyl). GC/MS analysis time needed to...
Charles O. Hatcher, Roann E. Ogawa, Thomas P. Poe, John R. P. French III
1992, Journal of Freshwater Ecology (7) 257-269
Samples of lake sediment, macrozoobenthos, and fish were collected during 1983 and 1984 near a coal ash disposal basin situated on the western shoreline of Lake Erie. Neutron activation analysis was used to determine if potentially toxic trace elements were present in higher concentrations at stations near the basin...
Michael J. Mac, T.R. Schwartz
1992, Chemosphere (25) 189-192
Eggs of feral lake trout collected in Lake Michigan were reared under laboratory conditions and monitored for egg hatchability, physical abnormalities, and survival of fry. Subsamples of eggs were also analyzed for PCB congeners. A negative correlation was found between egg hatchability and total PCBs but expressing PCB dose as...
Kyle J. Hartman, Bruce Vondracek, Donna L. Parrish, Kenneth M. Muth
1992, Journal of Great Lakes Research (18) 43-50
Emerald shiner (Notropis atherinoides) and spottail shiner (N. hudsonius) were abundant historically in western Lake Erie. Recent changes in the fish community suggest that shiners may not compete favorably with the invading white perch (Morone americana) or the gizzard shad (Dorosoma cepedianum). We examined the diets of emerald and spottail...
Edward H. Brown Jr., Gary W. Eck
1992, Polskie Archiwum Hydrobiologii (39) 289-297
Density-dependent recruitment of the bloater (Coregonus hoyi) in Lake Michigan during and after recovery of the population in about 1977-1983 was best reflected in the fit of the Beverton-Holt recruitment function to age -1 and -2 recruits and estimated eggs of parents surveyed with trawls. A lower growth rate...
James P. Hickey, Andrew J. Aldridge IV, Dora R. Passino-Reader, Anthony M. Frank
1992, Drug Information Journal (26) 487-495
The National Fisheries Research Center- Great Lakes has developed an interactive computer program that uses the structure of an organic molecule to predict its acute toxicity to four aquatic species. The expert system software, written in the muLISP language, identifies the skeletal structures and substituent groups of an organic molecule...
Jacqueline F. Savino, Elizabeth A. Marschall, Roy A. Stein
1992, Oecologia (89) 153-160
Bluegill (Lepomis macrochira) growth varies inconsistently with plant density. In laboratory and field experiments, we explored mechanisms underlying bluegill growth as a function of plant and invertebrate density. In the laboratory, bluegills captured more chironomids (Chironomus riparius) than damselflies (Enallagma spp. and Ischnura spp.), but energy intake per...
J. K. Odum, F. T. Lee, J.W. Stone
1992, International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts (29) 73-76
[No abstract available]...
J.K. Böhlke, J.J. Irwin
1992, Geochimica et Cosmochimica Acta (56) 187-201
Ar, Kr, Xe, Cl, Br, I, and K abundances and isotopic compositions have been measured in microscopic fluid inclusions in minerals by noble gas mass spectrometry following neutron irradiation and laser extraction. The laser microprobe noble gas mass spectrometric (LMNGMS) technique was quantified by use of microstandards, including air-filled capillary...
J.D. Teska, R. C. Cipriano, W. B. Schill
1992, Journal of Wildlife Diseases (28) 515-520
Cytochrome oxidase variants of the bacterial fish pathogen, Aeromonas salmonicida, were characterized for genetic and molecular homology with cytochrome oxidase-positive isolates that typically induce furunculosis in salmonids. Protein and lipopolysaccharide moieties of the cytochrome oxidase-negative variants were similar to their typical counterparts, based on...
Wes Hildreth, Robert E. Drake
1992, Bulletin of Volcanology (54) 93-125
Quizapu is a flank vent of the basalt-to-rhyodacite Holocene stratocone, Cerro Azul, and lies at the focus of a complex Quaternary volcanic field on the Andean volcanic front. The Quizapu vent originated in 1846 when 5 km3 of hornblende-dacite magma erupted effusively with little accompanying tephra....
George E. Ulrech, Mitchell W. Reynolds, Richard B. Taylor
1992, Conference Paper, ASTM Special Technical Publication
Establishing modern scientific and technical standards for geologic maps and their derivative map products is vital to both producers and users of such maps as we move into an age of digital cartography. Application of earth-science data in complex geographic information systems, acceleration of geologic map production, and reduction of...
D. Kirk Nordstrom, R.H. McNutt, I. Puigdomenech, John A.T. Smellie, M. Wolf
1992, Journal of Geochemical Exploration (45) 249-287
Surface and ground waters, collected over a period of three years from the Osamu Utsumi uranium mine and the Morro do Ferro thorium/rare-earth element (Th/REE) deposits, were analyzed and interpreted to identify the major hydrogeochemical processes. These results provided information on the current geochemical evolution of ground...
Derek R. Lovley, Elizabeth J.P. Phillips
1992, Environmental Science & Technology (26) 2228-2234
Enzymatic uranium reduction by Desulfovibrio desulfuricans readily removed uranium from solution in a batch system or when D. desulfuricans was separated from the bulk of the uranium-containing water by a semipermeable membrane. Uranium reduction continued at concentrations as high as 24 mM. Of a variety of potentially inhibiting anions and...
R. O. Castle, T.D. Gilmore
1992, Geological Society of America Bulletin (104) 1577-1591
Recently recovered archival leveling data from southwestern Arizona and adjacent parts of California compel major revisions in the configuration and interpretation of the southern California uplift, both at its culmination and following its partial collapse. Re-examination of the older vertical-control record indicates that...
C. Sancetta, M. Lyle, L. Heusser, R. Zahn, J.P. Bradbury
1992, Quaternary Research (38) 359-370
A core 120 km off the coast of southern Oregon was examined for changes in lithology, diatoms, and pollen over the past 30,000 yr. Primary production during the late Pleistocene was about half that of the Holocene. Evidence from diatoms and pollen indicates that summer upwelling was much weaker, implying...
D.A. Vroblesky, T.M. Yanosky, F.R. Siegel
1992, Environmental Geology and Water Sciences (19) 71-74
The wood of tuliptrees (Liriodendron tulipifera L.) growing above groundwater contamination from a hazardous-waste landfill in Maryland contained elevated concentrations of potassium (K). The groundwater contamination also contained elevated concentrations of dissolved K, as well as arsenic (As), cadmium (Cd), chloride (Cl), iron (Fe), manganese (Mn), zinc (Zn), and organic...
R. A. Ayuso, Joseph G. Arth
1992, Contributions to Mineralogy and Petrology (111) 1-23
Five Devonian plutons (West Charleston, Echo Pond, Nulhegan, Derby, and Willoughby) that constitute the Northeast Kingdom batholith in Vermont show wide ranges in elemental abundances and ratios consistent with major crustal contributions during their evolution. The batholith consists of metaluminous quartz gabbro, diorite and quartz monzodiorite, peraluminous granodiorite and granite,...