Evaluating enhancement of striped bass in the context of potential predation on anadromous salmonids in Coos Bay, Oregon
J. H. Johnson, A.A. Nigro, R. Temple
1992, North American Journal of Fisheries Management (12) 103-108
We describe an approach for evaluating the predation on anadromous salmonids that could result from enhancement of striped bass Morone saxatilis in Coos Bay, Oregon. Predation by striped bass on juvenile salmonids has been documented there since 1930. To provide a basis for the decision about enhancement of striped bass in Coos...
Fyke-net and gill-net size selectivities for yellow perch in Green Bay, Lake Michigan
Clifford E. Kraft, Barry L. Johnson
1992, North American Journal of Fisheries Management (12) 230-236
We estimated a fyke‐net selectivity function for yellow perch Perca flavescens in Green Bay, Lake Michigan, by comparing length‐frequency distributions of yellow perch captured in fyke nets with different mesh sizes in 1986. Using a length—girth relationship for Green Bay yellow perch, we expressed selectivity as the ratio of girth (G) to...
Effect of stocking season and technique on survival of lake trout in Lake Ontario
Joseph H. Elrod, Clifford P. Schneider
1992, North American Journal of Fisheries Management (12) 131-138
To identify the stocking season and technique that resulted in maximum contribution of hatchery‐reared lake trout Salvelinus namaycush to the population in Lake Ontario, paired lots of yearlings were stocked near shore in March, near shore in May, and offshore by helicopter in May. All mortality associated with stocking season and technique...
Lunar impact basins and crustal heterogeneity: New western limb and far side data from Galileo
Michael J.S. Belton, James W. Head III, Carle M. Pieters, Ronald Greeley, Alfred S. McEwen, G. Neukum, Kenneth P. Klaasen, C.D. Anger, M. H. Carr, C. R. Chapman, M. E. Davies, F. P. Fanale, P.J. Gierasch, R. Greenberg, A. Ingersoll, Torrence Johnson, B. Paczkowski, C.B. Pilcher, J. Veverka
1992, Science (255) 570-576
Multispectral images of the lunar western limb and far side obtained from Galileo reveal the compositional nature of several prominent lunar features and provide new information on lunar evolution. The data reveal that the ejecta from the Orientale impact basin (900 kilometers in diameter) lying outside the Cordillera Mountains was...
Groundwater use: Equilibrium between social benefits and potential environmental costs
M.R. Llamas, W. Back, J. Margat
1992, Hydrogeology Journal (1) 3-14
In many countries groundwater resources are under-appreciated and, therefore, underutilizied; whereas, in some areas they are inappropriately exploited and, therefore, over-utilized. “Over utilization” can lead to depletion in quantity or a degradation in quality or both. Obstacles to effective management include: (1) lack of knowledge of basic principles of...
Morphology of the island of Hawaii
James G. Moore, Robert K. Mark
1992, GSA Today (2) 257-262
Digital elevation data for the island of Hawaii from the U.S. Geographical Survey gridded at 30 m spacing was used to generate a slope map, a shaded relief map, and plots that compare slope and elevation for each of the five volcanoes that compose the island.These computer- generated products are...
Allochthonous impact-shocked rocks and superimposed deformations at the Beaverhead site in southwest Montana
R.B. Hargraves, Karl S. Kellogg, P.S. Fiske, S.B. Hougen
1992, GSA Special Papers (293) 225-235
Upward-pointing shatter cones in sandstones of uncertain age (Middle Proterozoic? to Lower Cambrian?) and older crystalline basement rocks are exposed over an area of approximately 25 × 8 km in southwestern Montana. These shatter cones, together with pseudotachylites and breccias of various types (particularly in basement gneisses), are inferred to...
Late Holocene tectonics and paleoseismicity, southern Cascadia subduction zone
S. H. Clarke Jr., G. A. Carver
1992, Science (255) 188-192
Holocene deformation indicative of large subduction-zone earthquakes has occurred on two large thrust fault systems in the Humboldt Bay region of northern California. Displaced stratigraphic markers record three offsets of 5 to 7 meters each on the Little Salmon fault during the past 1700 years. Smaller and less frequent Holocene...
Evidence for cenozoic crustal extension in the Bering Sea region
Alan K. Cooper, M. S. Marlow, D.W. Scholl, A.J. Stevenson
1992, Tectonics (11) 719-731
Geophysical and regional geologic data provide evidence that parts of the oceanic crust in the abyssal basins of the Bering Sea have been created or altered by crustal extension and back‐arc spreading. These processes have occurred during and since early Eocene time when the Aleutian Ridge developed and isolated oceanic...
Alleghanian development of the Goat Rock fault zone, southernmost Appalachians: Temporal compatibility with the master decollement
Mark G. Steltenpohl, S. Goldberg, T.B. Hanley, Michael J. Kunk
1992, Geology (20) 845-848
The Goat Rock and associated Bartletts Ferry fault zones, which mark the eastern margin of the Pine Mountain Grenville basement massif, are controversial due to the suggestion that they are rare exposed segments of the late Paleozoic southern Appalachian master decollement. The controversy in part stems from reported middle Paleozoic...
Earth Science for Everyone. What's under your feet? Activity Book
1992, Report
Influence of disease on a population model of mid-continent mallards
Michael D. Samuel
1992, Conference Paper, Transactions of the 57th North American Wildlife & Natural Resources Conference
No abstract available....
Evolution of sedimentary basins: Eastern Great Basin
1992, Bulletin 1988
No abstract available....
Geographic information systems
Water Resources Division, U.S. Geological Survey
1992, Report
Geographic information systems (GIS) technology can be used for scientific investigations, resource management, and developmental planning. For example, a GIS might allow emergency planners to easily calculate emergency response times in the event of a natural disaster, or a GIS might be used to find wetlands that need protection form...
Mineral resource studies along the Sierrita-Mogollon Transect, Arizona-New Mexico
1992, Bulletin 2042
No abstract available....
Techniques in fish immunology
Joanne S. Stolen, Thelma C. Fletcher, Douglas P. Anderson, Stephen L. Kaattari, Andrew F. Rowley
1992, Book
No abstract available....
Geographic Variation in Hirundo pyrrhonota (Cliff Swallow) from Northern North America
M. Ralph Browning
1992, Western Birds (23) 21-29
The number of subspecies recognized in Hirundo pyrrhonota Vieillot (Cliff Swallow) from Alaska, Canada, and the northern contiguous United States ranges from one (Peters 1960) to three (e.g., Jewett et al. 1953, Oberholser, 1920, breeding from central Alaska to the central Great Basin, and two disjunct populations of nominate pyrrhonota,...
Accommodating, balancing, and bargaining in hydropower licensing
B. L. Lamb
1992, Resource Law Notes (25) 5-10
No abstract available....
Benthic macroinvertebrate microhabitat requirements and trophic structure in southeastern streams: a literature synthesis
E.C. Webber, M.R. Struve, D.R. Bayne
1992, Report, Fisheries and Allied Aquacultures Departmental Series No. 3
No abstract available....
Section 404 and wetland alterations in the platte river basin of Colorado
D.N. Gladwin, M.E. Jennings, J. E. Roelle, D.A. Asherin
1992, Report
No abstract available....
Regional characterization and setting for the Loch Vale Watershed study
Jill S. Baron, M.A. Mast
1992, Book chapter, Biogeochemistry of a subalpine ecosystem: Loch Vale watershed
No abstract available....
Geologic sampling of the Chiricahua mountains, Arizona
E. A. Du Bray
1992, Bulletin 2021
Geochemical data for, and availability of samples collected during geologic mapping of the quadrangle....
Characteristics of a sandy depositional lobe on the outer Mississippi fan from SeaMARC IA sidescan sonar images
David C. Twichell, William C. Schwab, C. Hans Nelson, Neil H. Kenyon, Homa J. Lee
1992, Geology (20) 689-692
SeaMARC IA sidescan sonar images of the distal reaches of a depositional lobe on the Mississippi Fan show that channelized rather than unconfined transport was the dominant transport mechanism for coarse-grained sediment during the formation of this part of the deep-sea fan. Overbank sheet flow of sands was not an...
Introduction
Jill S. Baron
1992, Book chapter, Biogeochemistry of a subalpine ecosystem: Loch Vale Watershed
No abstract available....
Natural toxic waters of Poas Volcano, Costa Rica
Susan L. Brantley, Gary L. Rowe, Leonard F. Konikow, Ward E. Sanford
1992, National Geographic Research (8) 328-337
No abstract available....
