Effects of empirical versus model-based reflectance calibration on automated analysis of imaging spectrometer data: a case study from the Drum Mountains, Utah
John L. Dwyer, Fred A. Kruse, Adam B. Lefkoff
1995, Photogrammetric Engineering and Remote Sensing (61) 1247-1254
Data collected by the Airborne Visible/Infrared Imaging Spectrometer (AVIRIS) have been calibrated to surface reflectance using an empirical method and an atmospheric model-based method. Single spectra extracted from both calibrated data sets for locations with known mineralogy compared favorably with laboratory and field spectral measurements of samples from the same...
Factors affecting microbial 2,4,6-trinitrotoluene mineralization in contaminated soil
P. M. Bradley, F. H. Chapelle
1995, Environmental Science & Technology (29) 802-806
No abstract available....
Composition of precipitation, bulk deposition, and runoff at a granitic bedrock catchment in the Loch Vale watershed, Colorado, USA
David W. Clow, M. Alisa Mast
1995, Biogeochemistry of seasonally snow-covered catchments. Proc. symposium, Boulder, 1995 (228) 235-242
The chemical composition of precipitation, bulk deposition, and runoff from a 30-m2 granitic bedrock catchment in the Loch Vale Watershed in Rocky Mountain National Park was monitored over a 6-week period in the summer of 1994 to determine the importance of dry deposition in the alpine zone. Concentrations of acid...
Spatial trends in Pearson Type III statistical parameters
R.W. Lichty, M.R. Karlinger
1995, Journal of Hydraulic Engineering (121) 672-678
Spatial trends in the statistical parameters (mean, standard deviation, and skewness coefficient) of a Pearson Type III distribution of the logarithms of annual flood peaks for small rural basins (less than 90 km2) are delineated using a climate factor CT, (T=2-, 25-, and 100-yr recurrence intervals), which quantifies the effects...
Thermodynamics of gas and steam-blast eruptions
L.G. Mastin
1995, Bulletin of Volcanology (57) 85-98
Eruptions of gas or steam and non-juvenile debris are common in volcanic and hydrothermal areas. From reports of non-juvenile eruptions or eruptive sequences world-wide, at least three types (or end-members) can be identified: (1) those involving rock and liquid water initially at boiling-point temperatures (‘boiling-point eruptions’); (2) those powered...
Techniques for determining pressure in the hydrothermal diamond- anvil cell: behavior and identification of ice polymorphs (I, III, V, VI)
H.T. Haselton Jr., Chou I-Ming, A.H. Shen, William A. Bassett
1995, American Mineralogist (80) 1302-1306
For H2O densities > 1.0 g/cm3, a determination of the ice melting temperature provides the density information required to calculate the P-T path that the sample in a hydrothermal diamond-anvil cell follows when the sample is heated isochorically. The principal difficulty is the identification of the polymorph because of metastable...
Annotated bibliography of methodology for assessment of undiscovered oil and gas resources
Ronald R. Charpentier, G.L. Dolton, G. F. Ulmishek
1995, Nonrenewable Resources (4) 154-186
An annotated bibliography of methodology of assessment of undiscovered oil and gas resources is presented as a useful reference for those engaged in resource assessment. The articles that are included deal only with quantitative assessment of undiscovered or inferred resources. the articles in this bibliography are classified largely according to...
Exposure of a late cretaceous layered mafic-felsic magma system in the central Sierra Nevada batholith, California
D.S. Coleman, A. F. Glazner, J.S. Miller, K.J. Bradford, T. P. Frost, J.L. Joye, C.A. Bachl
1995, Contributions to Mineralogy and Petrology (120) 129-136
New U-Pb zircon ages for the Lamarck Granodiorite, associated synplutonic gabbro and diorite plutons, and two large mafic intrusive complexes that underlie them in the Sierra Nevada batholith are 92??1 Ma. These ages establish the Late Cretaceous as a period of extensive mafic-felsic magmatism in the central part of the...
Population biology of the Florida manatee: An overview
Thomas J. O'Shea, B.B. Ackerman
Thomas J. O'Shea, B.B. Ackerman, H. Franklin Percival, editor(s)
1995, Information and Technology Report 1
In the following overview we discuss progress toward meeting the three objectives of the 1992 workshop: to provide a synthesis of existing information about manatee population biology; to evaluate the strengths and weaknesses of current data sets and approaches to research on manatee population biology; and to provide recommendations for...
Estimation of survival of adult Florida manatees in the Crystal River, at Blue Spring, and on the Atlantic Coast
Thomas J. O'Shea, Catherine A. Langtimm
Thomas J. O'Shea, B.B. Ackerman, H. Franklin Percival, editor(s)
1995, Information and Technology Report 1
We applied Cormack-Jolly-Seber open population models to manatee (Trichechus manatus latirostris) photo-identification databases to estimate adult survival probabilities. The computer programs JOLLY and RECAPCO were used to estimate survival of 677 individuals in three study areas: Crystal River (winters 1977-78 to 1990-91), Blue Spring (winters 1977-78 to 1990-91), and the...
Integration of manatee life-history data and population modeling
L.L. Eberhardt, Thomas J. O'Shea
Thomas J. O'Shea, B.B. Ackerman, H. Franklin Percival, editor(s)
1995, Information and Technology Report 1
Aerial counts and the number of deaths have been a major focus of attention in attempts to understand the population status of the Florida manatee (Trichechus manatus latirostris). Uncertainties associated with these data have made interpretation difficult. However, knowledge of manatee life-history attributes increased and now permits the development of...
Beach erosion and coastal development at Rincón, Puerto Rico
E. Robert Thieler, Rafael W. Rodriguez, Milton Carlo
1995, Shore & Beach (63) 18-28
No abstract available....
Abundance, distribution and population status of Marbled Murrelets in Alaska
John F. Piatt, Nancy L. Naslund
C. John Ralph, George L. Hunt Jr., Martin G. Raphael, John F. Piatt, editor(s)
1995, Book chapter, Ecology and conservation of the marbled Murrelet (<i>USDA Forest Service General Technical Report PSW-GTR-j52</i>)
Ship-based surveys conducted throughout Alaska during the 1970's and 1980's, and more recent small boat surveys conducted in the northern Gulf of Alaska, suggest that about 280,000 murrelets reside in Alaska during summer. Most Marbled Murrelets are concentrated offshore of large tracts of coastal coniferous forests in southeast Alaska, Prince...
Lake trout (Salvelinus namaycush) populations in Lake Superior and their restoration in 1959-1993
Michael J. Hansen, James W. Peck, Richard G. Schorfhaar, James H. Selgeby, Donald R. Schreiner, Stephen T. Schram, Bruce L. Swanson, Wayne R. MacCallum, Mary K. Burnham-Curtis, Gary L. Curtis, John W. Heinrich, Robert J. Young
1995, Journal of Great Lakes Research (21) 152-175
Naturally-reproducing populations of lake trout (Salvelinus namaycush) have been reestablished in most of Lake Superior, but have not been restored to 1929-1943 average abundance. Progress toward lake trout restoration in Lake Superior is described, management actions are reviewed, and the effectiveness of those actions is evaluated; especially stocking lake trout...
Size limitation on zebra mussels consumed by freshwater drum may preclude the effectiveness of drum as a biological controller
John R. P. French III, Joy G. Love
1995, Journal of Freshwater Ecology (10) 379-383
The septa lengths of bivalve shells were used to estimate shell lengths of the largest zebra mussels (Dreissena polymorpha) crushed and consumed by freshwater drum (Aplodinotus grunniens) to determine if size limitation could preclude the effectiveness of drum as a biological controller of the zebra mussel. We examined gut samples...
Population recovery and natural recruitment of lake trout at Gull Island Shoal, Lake Superior, 1964-1992
Stephen T. Schram, James H. Selgeby, Charles R. Bronte, Bruce L. Swanson
1995, Journal of Great Lakes Research (21) 225-232
We documented an increase in the abundance of wild lake trout (Salvelinus namaycush) at Gull Island Shoal in western Lake Superior and examined the relationship between parental-stock size and recruitment of age-0 fish in 1964–1992. Abundance of adult wild female lake trout and densities of age-0 fish both increased during...
Induced root-suckering shows potential for reestablishing riparian trees (New Mexico)
L.S. Ischinger, P.B. Shafroth
1995, Restoration & Management Notes (13) 121-121
No abstract available....
Fisheries management to reduce contaminant consumption
Craig A. Stow, Stephen R. Carpenter, Charles P. Madenjian, Lisa A. Eby, Leland J. Jackson
1995, BioScience (45) 752-758
This paper concludes that contaminants in Lake Michigan fishes are likely to remain above detectable levels for some time. Some interest groups have called for measures ranging from additional effluent controls to a ban on the industrial use of chlorine. Such measures, however well intended, are likely to have little...
Winter diet of lake herring (Coregonus artedi) in western Lake Superior
Jason Link, James H. Selgeby, Michael H. Hoff, Craig Haskell
1995, Journal of Great Lakes Research (21) 395-399
Lake herring (Coregonus artedi) and zooplankton samples were simultaneously collected through the ice in the Apostle Islands region of western Lake Superior to provide information on the winter feeding ecology of lake herring. Zooplankton constituted the entire diet of the 38 lake herring collected for this study. We found no...
Geomorphic requirements for establishment and maintenance of cottonwood forest
J.M. Friedman, G.T. Auble, M. L. Scott
1995, Conference Paper, Proceedings of the 46th Annual Meeting of the Great Plains Agricultural Council, Council Publication No. 149
No abstract available....
Genetic strategies for lake trout rehabilitation: a synthesis
Mary K. Burnham-Curtis, Charles C. Krueger, Donald R. Schreiner, James E. Johnson, Thomas J. Stewart, Ross M. Horrall, Wayne R. MacCallum, Roger Kenyon, Robert E. Lange
1995, Journal of Great Lakes Research (21) 477-486
The goal of lake trout rehabilitation efforts in the Great Lakes has been to reestablish inshore lake trout (Salvelinus namaycush) populations to self-sustaining levels. A combination of sea lamprey control, stocking of hatchery-reared lake trout, and catch restrictions were used to enhance remnant lake trout stocks in Lake Superior and...
Planktivory by alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) on microcrustacean zooplankton and dreissenid (Bivalvia: Dreissenidae) veligers in southern Lake Ontario
Edward L. Mills, Robert O’Gorman, Edward F. Roseman, Connie Adams, Randall W. Owens
1995, Canadian Journal of Fisheries and Aquatic Sciences (52) 925-935
The objective of this study was to describe the diet of young-of-the-year and adult alewife (Alosa pseudoharengus) and rainbow smelt (Osmerus mordax) in nearshore waters coincident with the colonization of Lake Ontario by Dreissena. Laboratory experiments and field observations indicated that alewife and rainbow smelt consumed dreissenid veligers and that the...
Survival of lake trout eggs on reputed spawning grounds in Lakes Huron and Superior: In situ incubation, 1987-1988
Bruce A. Manny, Thomas A. Edsall, James W. Peck, Gregory W. Kennedy, Anthony M. Frank
1995, Journal of Great Lakes Research (21) 302-312
Lake trout reproduce widely in Lake Superior but little in Lake Huron. We examined whether survival of lake trout eggs and fry in either lake was reduced by physical disturbances and swim-up mortality. Eggs were collected from feral lake trout in Lake Superior and placed in 108 plastic incubators. A...
Predation on Mysis relicta by slimy sculpins (Cottus cognatus) in southern Lake Ontario
Randall W. Owens, Peter G. Weber
1995, Journal of Great Lakes Research (21) 275-283
Mysis relicta and Diporeia dominated the diet of slimy sculpins (Cottus cognatus) caught at depths of 55, 75, and 95 m at two locations in southern Lake Ontario. Length of prey was positively correlated with length of slimy sculpin. At a given depth, mean...
Comparison of lake trout-egg survival at inshore and offshore and shallow-water and deepwater sites in Lake Superior
Randy L. Eshenroder, Charles R. Bronte, James W. Peck
1995, Journal of Great Lakes Research (21) 313-322
We incubated lake trout (Salvelinus namaycush) eggs over winter at shallow (10 m) and deep locations (20 m) on Gull Island Shoal, Lake Superior; at a shallow-water (10 m) site off the mainland (Bark Point); and in flowing Great Lakes water at two laboratories. Survival to hatch was significantly higher...
