Actualistic models of mantle metasomatism documented in a composite xenolith from Dish Hill, California
J. E. Nielson, J. R. Budahn, D.M. Unruh, H. G. Wilshire
1993, Geochimica et Cosmochimica Acta (57) 105-121
Major and trace-element whole rock and mineral variations in composite hornblendite-peridotite xenolith Ba-2-1, from Dish Hill, CA, are due to a single event of metasomatism in the mantle. The hornblendite is the crystallized selvage of a dike conduit charged with incompatible-element-enriched hydrous mafic magma. The magma infiltrated the refractory peridotite...
Variations in northern Sierra Nevada streamflow. Implications of climate change
A. Pupacko
1993, Water Resources Bulletin (29) 283-290
Historical records of streamflow for an eastward- and a westward-draining stream in the northern Sierra Nevada have been analyzed for evidence of changes in runoff characteristics and patterns of variability. A trend of increasing and more variable winter streamflow began in the mid-1960s. Mean monthly streamflow during December through March...
Pesticides in shallow groundwater in the Delmarva Peninsula
M.T. Koterba, W.S.L. Banks, R. J. Shedlock
1993, Journal of Environmental Quality (22) 500-518
A regional study of the areal and depth distribution of pesticides in shallow groundwater in the Delmarva Peninsula of Delaware, Maryland, and Virginia was done to (i) relate the pesticides detected to landscape and shallow subsurface features, and (ii) evaluate aquifer vulnerability and the potential...
Worldwide distribution of subaquatic gas hydrates
K.A. Kvenvolden, G.D. Ginsburg, V.A. Soloviev
1993, Geo-Marine Letters (13) 32-40
Sediments containing natural gas hydrates occur worldwide on continental and insular slopes and rises of active and passive margins, on continental shelves of polar regions, and in deep-water (> 300 m) environments of inland lakes and seas. The potential amount of methane in natural gas hydrates is enormous, with current...
Late Pleistocene Vertebrates and Other Fossils from Epiguruk, Northwestern Alaska
T. D. Hamilton, G.M. Ashley, K. M. Reed, C. E. Schweger
1993, Quaternary Research (39) 381-389
Sediments exposed at Epiguruk, a large cutbank on the Kobuk River about 170 km inland from Kotzebue Sound, record multiple episodes of glacial-age alluviation followed by interstadial downcutting and formation of paleosols. Vertebrate remains from Epiguruk include mammoth, bison, caribou, an equid, a canid, arctic ground squirrel, lemmings, and voles....
Age and growth of juvenile white sturgeon in the Columbia River downstream from McNary Dam
Allen I. Miller, P.J. Anders, M.J. Parsley, C.R. Sprague, J.J. Warren, L.G. Beckman
1993, Report, Status and habitat requirements of white sturgeon populations in the Columbia River downstream from McNary Dam
No abstract available...
Survival in pond water of four reoviruses isolated from aquatic animals
Yolanda J. Brady, John A. Plumb, J. R. Winton
1993, Journal of Applied Aquaculture (2) 85-92
The viabilities of golden shiner virus (GSV), chum salmon virus (CSV), oyster reovirus 13P2 (13P2). and catfish reovirus (CRV) were compared following viruses incubation in pond water samples held at 4°. 20°, 25°, and 30°C for one month. At the three higher temperatures tested, viral infectivity was lost by day...
Where lava meets the sea; Kilauea Volcano, Hawaii
T. N. Mattox
1993, Earthquakes & Volcanoes (USGS) (24) 160-177
Active volcanoes on the island of Hawai'i provide scientists with exceptional opportunities to observe volcanic phenomena at close range. Such an opportunity occurred on November 24, 1992, when geologists from the Hawaiian Volcano Observatory (HVO) witnessed spectacular explosive interactions between lava and seawater on the southeast coast of the island....
Monitoring of in-river migration of smolts from two groups of spring Chinook salmon (Oncorhynchus tshawytscha) with different profiles of Renibacterium salmoninarum infection
R.J. Pascho, D.G. Elliott, S. Achord
1993, Book chapter, Broodstock management and egg and larval quality: A science in aquaculture international conference
No abstract available....
Freshwater mussels of the Chattahoochee and Flint rivers
J.D. Williams, J. Brim-Box
Kathryn J. Hatcher, editor(s)
1993, Conference Paper, Proceedings of the 1993 Georgia Water Resources Conference
No abstract available....
Earthquakes, November-December 1992
W. J. Person
1993, Earthquakes & Volcanoes (USGS) (24) 43-48
There were two major earthquakes (7.0≤M<8.0) during the last two months of the year, a magntidue 7.5 earthquake on December 12 in the Flores region, Indonesia, and a magnitude 7.0 earthquake on December 20 in the Banda Sea. Earthquakes caused fatalities in China and Indonesia. The greatest number of deaths...
Polychlorinated biphenyls in Great Lakes lake trout and their eggs: relations to survival and congener composition 1979-1988
Michael J. Mac, Ted R. Schwartz, Carol C. Edsall, Anthony M. Frank
1993, Journal of Great Lakes Research (19) 752-765
Eggs taken from lake trout (Salvelinus namaycush) captured from various Great Lakes between 1979 and 1988 were analyzed for individual polychlorinated biphenyl (PCB) congeners. Eggs from the same fish had been previously reared through hatching and early fry development to ascertain egg quality. Tissues from a subsample of the adult...
Fecundity of walleyes in western Lake Erie, 1966 and 1990-91
Kenneth M. Muth, Brian S. Ickes
1993, Journal of Great Lakes Research (19) 715-719
Ovaries were collected from walleyes (Stizostedion vitreum vitreum) in western Lake Erie just prior to spawning in 1990 and 1991 to determine current fecundity. Results were compared with fecundity determined in 1966 prior to stock rehabilitation when walleye abundance was lower and fish size at age was greater. Fecundity estimates...
Applications of bioenergetics models to fish ecology and management: where do we go from here?
Michael J. Hansen, Daniel Boisclair, Stephen B. Brandt, Steven W. Hewett, James F. Kitchell, Martyn C. Lucas, John J. Ney
1993, Transactions of the American Fisheries Society (122) 1019-1030
Papers and panel discussions given during a 1992 symposium on bioenergetics models are summarized. Bioenergetics models have been applied to a variety of research and management questions related to fish stocks, populations, food webs, and ecosystems. Applications include estimates of the intensity and dynamics of predator-prey interactions, nutrient...
Dynamics of a yellow perch population in western Lake Superior
Charles R. Bronte, James H. Selgeby, Donald V. Swedberg
1993, North American Journal of Fisheries Management (13) 511-523
Yellow perch Perca flavescens were sampled annually in 1973–1988 with bottom trawls in Chequamegon Bay, Lake Superior. Biomass averaged l.6 kg/hectare. Fish l–3 years old made up 64% of the biomass, whereas fish of harvestable size (≥4 years old) made up only 31% of the biomass. Year-class strength was variable among years,...
Factors affecting feeding behavior and survival of juvenile lake trout in the Great Lakes
Jacqueline F. Savino, Mary G. Henry, Harold L. Kincaid
1993, Transactions of the American Fisheries Society (122) 366-377
We explored the importance of experience with feeding on live prey, of cataracts, of strain, and of maternally transferred contaminants for the feeding rate and predator avoidance behavior of young lake trout Salvelinus namaycush. Hatchery-reared and feral juvenile lake trout were tested separately as predators on lake trout fry in tanks...
How well can fishes prey on zebra mussels in eastern North America?
John R. P. French III
1993, Fisheries (18) 13-19
Literature on mollusk-eating fishes was reviewed to determine the potential for different species of fish to control zebra mussels in eastern North America. At least six species are potential predators of zebra mussels because they possess (1) both upper and lower pharyngeal teeth or (2) lower pharyngeal teeth and chewing...
Activated mutatox assay for detection of genotoxic substances
B. Thomas Johnson
1993, Environmental Toxicology (8) 103-113
No abstract available....
Evaluation of acid mine drainage with the rapid bioassessment protocol
A. Hendricks, M. Miller, C. Snyder
1993, Conference Paper, Bulletin of the North American Benthological Society
No abstract available at this time...
Evaluation of five anesthetics on striped bass
C. A. Lemm
1993, Resource Publication 196
No abstract available....
Hydraulics of Alaska steeppass fishway model A40
M. Odeh
1993, Research Information Bulletin 95
No abstract available at this time...
Avian community responses to cottonwood revegetation along the Rio Grande in New Mexico
G.H. Farley, L. M. Ellis, J.N. Stuart, N.J. Scott
1993, Conference Paper, New Mexico Journal of Science
No abstract available at this time...
Resistance of different salmonid fishes correlates with isolation of Aeromonas salmonicida from external mucus
R. C. Cipriano, L.A. Ford
1993, Research Information Bulletin 99
No abstract available at this time...
[Book Review] Chance, Chaos, and More, by David Ruelle
Douglas H. Johnson
1993, Prairie Naturalist (25) 359-360
Review of: Chance and Chaos. David Ruelle. Princeton University Press (April 5, 1993). 214 p. ISBN-10: 0691021007....
Cleat development in coals of the Upper Cretaceous Mesaverde Formation, Pilot Butte area, Wind River Reservation, Wyoming
R. C. Johnson, A.C. Clark, R.J. Szmajter
1993, Conference Paper, Oil and gas and other resources of the Wind River Basin, Wyoming; Special symposium
The cleat system developed in low-rank (mean viltrinite reflectance of 0.43 to 0.5 percent) coal beds in the Upper Cretaceous Mesaverde Formation was studied in outcrop and in coreholes drilled for coalbed methane evaluation near Pilot Butte in the central part of the Wind River Reservation. Cleats are the...
