Bathythermal habitat use by strains of Great Lakes- and Finger Lakes-origin lake trout in Lake Huron after a change in prey fish abundance and composition
Roger A. Bergstedt, Ray L. Argyle, Charles C. Krueger, William W. Taylor
2012, Transactions of the American Fisheries Society (141) 263-274
A study conducted in Lake Huron during October 1998–June 2001 found that strains of Great Lakes-origin (GLO) lake trout Salvelinus namaycush occupied significantly higher temperatures than did Finger Lakes-origin (FLO; New York) lake trout based on data from archival (or data storage) telemetry tags that recorded only temperature. During 2002...
Crustal seismicity and the earthquake catalog maximum moment magnitudes (Mcmax) in stable continental regions (SCRs): Correlation with the seismic velocity of the lithosphere
Walter D. Mooney, Jeroen Ritsema, Yong Keun Hwang
2012, Earth and Planetary Science Letters (357-358) 78-83
A joint analysis of global seismicity and seismic tomography indicates that the seismic potential of continental intraplate regions is correlated with the seismic properties of the lithosphere. Archean and Early Proterozoic cratons with cold, stable continental lithospheric roots have fewer crustal earthquakes and a lower maximum earthquake catalog moment magnitude...
Application of a bioenergetics model for hatchery production: Largemouth bass fed commercial diets
Isak J. Csargo, Michael L. Brown, Steven R. Chipps
2012, North American Journal of Aquaculture (74) 352-359
Fish bioenergetics models based on natural prey items have been widely used to address research and management questions. However, few attempts have been made to evaluate and apply bioenergetics models to hatchery-reared fish receiving commercial feeds that contain substantially higher energy densities than natural prey. In this study, we evaluated...
Highly efficient amplification of chronic wasting disease agent by protein misfolding cyclical amplification with beads (PMCAb)
Chad J. Johnson, Judd M. Aiken, Debbie McKenzie, Michael D. Samuel, Joel A. Pedersen
2012, PLoS ONE (7)
Protein misfolding cyclic amplification (PMCA) has emerged as an important technique for detecting low levels of pathogenic prion protein in biological samples. The method exploits the ability of the pathogenic prion protein to convert the normal prion protein to a proteinase K-resistant conformation. Inclusion of Teflon® beads in the PMCA...
Hydromechanical effects of continental glaciation on groundwater systems
C. E. Neuzil
2012, Geofluids (12) 22-37
Hydromechanical effects of continental ice sheets may involve considerably more than the widely recognized direct compression of overridden terrains by ice load. Lithospheric flexure, which lags ice advance and retreat, appears capable of causing comparable or greater stress changes. Together, direct and flexural loading may increase fluid pressures by tens...
Hotspot: the Snake River Geothermal Drilling Project--initial report
J.W. Shervais, D. Nielson, T. Lachmar, E. H. Christiansen, L. Morgan, Wayne C. Shanks, C. Delahunty, D.R. Schmitt, L.M. Liberty, D.D. Blackwell, J. M. Glen, J.A. Kessler, K.E. Potter, M.M. Jean, C.J. Sant, T. Freeman
2012, Geothermal Resources Council Transactions (36) 767-772
The Snake River volcanic province (SRP) overlies a thermal anomaly that extends deep into the mantle; it represents one of the highest heat flow provinces in North America. The primary goal of this project is to evaluate geothermal potential in three distinct settings: (1) Kimama site: inferred high sub-aquifer geothermal...
Hydrogeomorphology of the hyporheic zone: stream solute and fine particle interactions with a dynamic streambed
J. W. Harvey, J.D. Drummond, R.L. Martin, L.E. McPhillips, A.I. Packman, D.J. Jerolmack, S.H. Stonedahl, A.F. Aubeneau, A.H. Sawyer, L. G. Larsen, C.R. Tobias
2012, Journal of Geophysical Research: Biogeosciences (117)
Hyporheic flow in streams has typically been studied separately from geomorphic processes. We investigated interactions between bed mobility and dynamic hyporheic storage of solutes and fine particles in a sand-bed stream before, during, and after a flood. A conservatively transported solute tracer (bromide) and a fine particles tracer (5 μm...
Response by anglers to a differential harvest regulation on three black bass species at Skiatook Lake, Oklahoma
James M. Long, Randy G. Hyler, William L. Fisher
2012, Proceedings of the Oklahoma Academy of Science (92) 9-20
Angler responses to a differential harvest regulation on black bass, Micropterus spp. at Skiatook Lake, Oklahoma was assessed from 1997 to 1999. This regulation allowed anglers to harvest 15 spotted bass, M. punctulatus (Rafinesque) of any size and six largemouth bass, M. salmoides (Lacepède) and smallmouth bass, M. dolomieu Lacepède...
Interdisciplinary research produces results in understanding planetary dunes
Timothy N. Titus, Rosalyn K. Hayward, Cynthia L. Dinwiddie
2012, Eos, Transactions, American Geophysical Union (93) 367-367
Third International Planetary Dunes Workshop: Remote Sensing and Image Analysis of Planetary Dunes; Flagstaff, Arizona, 12–16 June 2012. This workshop, the third in a biennial series, was convened as a means of bringing together terrestrial and planetary researchers from diverse backgrounds with the goal of fostering collaborative interdisciplinary research. The...
Downscaling future climate projections to the watershed scale: A north San Francisco Bay estuary case study
Elisabeth Micheli, Lorraine Flint, Alan Flint, Stuart Weiss, Morgan Kennedy
2012, San Francisco Estuary and Watershed Science (10)
We modeled the hydrology of basins draining into the northern portion of the San Francisco Bay Estuary (North San Pablo Bay) using a regional water balance model (Basin Characterization Model; BCM) to estimate potential effects of climate change at the watershed scale. The BCM calculates water balance components, including runoff,...
Estimating discharge measurement uncertainty using the interpolated variance estimator
T. Cohn, J. Kiang, R. Mason Jr.
2012, Journal of Hydraulic Engineering (139) 502-510
Methods for quantifying the uncertainty in discharge measurements typically identify various sources of uncertainty and then estimate the uncertainty from each of these sources by applying the results of empirical or laboratory studies. If actual measurement conditions are not consistent with those encountered in the empirical or laboratory studies, these...
Directional connectivity in hydrology and ecology
Laurel G. Larsen, Jungyill Choi, Martha K. Nungesser, Judson W. Harvey
2012, Ecological Applications (22) 2204-2220
Quantifying hydrologic and ecological connectivity has contributed to understanding transport and dispersal processes and assessing ecosystem degradation or restoration potential. However, there has been little synthesis across disciplines. The growing field of ecohydrology and recent recognition that loss of hydrologic connectivity is leading to a global decline in biodiversity underscore...
Common clay and shale
R.L. Virta
2012, Mining Engineering (64) 45-46
Common clay is a natural, fine-grained material composed of hydrous aluminum silicates. Shale is a laminated sedimentary rock formed by the consolidation of clay, mud and/or silt....
Low genetic diversity and minimal population substructure in the endangered Florida manatee: implications for conservation
Kimberly Pause Tucker, Margaret E. Hunter, Robert K. Bonde, James D. Austin, Ann Marie Clark, Cathy A. Beck, Peter M. McGuire, Madan K. Oli
2012, Journal of Mammalogy (93) 1504-1511
Species of management concern that have been affected by human activities typically are characterized by low genetic diversity, which can adversely affect their ability to adapt to environmental changes. We used 18 microsatellite markers to genotype 362 Florida manatees (Trichechus manatus latirostris), and investigated genetic diversity, population structure, and estimated...
Borates
R.D. Crangle Jr.
2012, Mining Engineering (64) 39-40
Four minerals represent 90 percent of the borates used by industry worldwide — the sodium borates, tincal and kernite; the calcium borate, colemanite; and the sodium-calcium borate, ulexite....
Bulk rock composition and geochemistry of olivine-hosted melt inclusions in the Grey Porri Tuff and selected lavas of the Monte dei Porri volcano, Salina, Aeolian Islands, southern Italy
Angela L. Doherty, Robert J. Bodnar, Benedetto De Vivo, Wendy A. Bohrson, Harvey E. Belkin, Antonia Messina, Robert J. Tracy
2012, Central European Journal of Geosciences (4) 338-355
The Aeolian Islands are an arcuate chain of submarine seamounts and volcanic islands, lying just north of Sicily in southern Italy. The second largest of the islands, Salina, exhibits a wide range of compositional variation in its erupted products, from basaltic lavas to rhyolitic pumice. The Monte dei Porri eruptions...
Linking soil moisture balance and source-responsive models to estimate diffuse and preferential components of groundwater recharge
M.O. Cuthbert, R. Mackay, J. R. Nimmo
2012, Hydrology and Earth System Sciences (9) 8455-8492
Results are presented of a detailed study into the vadose zone and shallow water table hydrodynamics of a field site in Shropshire, UK. A conceptual model is developed and tested using a range of numerical models, including a modified soil moisture balance model (SMBM) for estimating groundwater recharge in the...
Direct U-Pb dating of Cretaceous and Paleocene dinosaur bones, San Juan Basin, New Mexico: COMMENT
Alan E. Koenig, Spencer G. Lucas, Leonid A. Neymark, Andrew B. Heckert, Robert M. Sullivan, Steven E. Jasinski, Denver W. Fowler
2012, Geology (40) e262-e262
Based on U-Pb dating of two dinosaur bones from the San Juan Basin of New Mexico (United States), Fassett et al. (2011) claim to provide the first successful direct dating of fossil bones and to establish the presence of Paleocene dinosaurs. Fassett et al. ignore previously published work that directly...
Arsenic speciation in food chains from mid-Atlantic hydrothermal vents
Vivien F. Taylor, Brian P. Jackson, Matthew R. Siegfried, Jana Navratilova, Kevin A. Francesconi, Julie Kirshtein, Mary Voytek
2012, Environmental Chemistry (9) 130-138
Arsenic concentration and speciation were determined in benthic fauna collected from the Mid-Atlantic Ridge hydrothermal vents. The shrimp species, Rimicaris exoculata, the vent chimney-dwelling mussel, Bathymodiolus azoricus, Branchipolynoe seepensis, a commensal worm of B. azoricus and the gastropod Peltospira smaragdina showed variations in As concentration and in stable isotope (δ13C...
From Caprio's lilacs to the USA National Phenology Network
Mark D. Schwartz, Julio L. Betancourt, Jake F. Weltzin
2012, Frontiers in Ecology and the Environment (10) 324-327
Continental-scale monitoring is vital for understanding and adapting to temporal changes in seasonal climate and associated phenological responses. The success of monitoring programs will depend on recruiting, retaining, and managing members of the public to routinely collect phenological observations according to standardized protocols. Here, we trace the development of infrastructure...
Advances in carbonate exploration and reservoir analysis
J. Garland, J.E. Neilson, S.E. Laubach, Katherine J. Whidden, editor(s)
2012, Book
Carbonate reservoirs contain an increasingly important percentage of the world’s hydrocarbon reserves. This volume presents key recent advances in carbonate exploration and reservoir analysis. As well as a comprehensive overview of the trends in carbonate over the years, the volume focuses on four key areas: (1) emerging plays and techniques with...
A brief review of the construction aggregates market
Jason Christopher Willett
2012, Stone, Sand & Gravel Review (2012) 25-27
The U.S. Geological Survey defines the construction aggregates industry as those companies that mine and process crushed stone and/or construction sand and gravel. Aggregates have been used from the earliest times of our civilization for a variety of purposes - construction being the major use. As construction aggregates, crushed stone...
Evidence of late-summer mating readiness and early sexual maturation in migratory tree-roosting bats found dead at wind turbines
P.M. Cryan, J.W. Jameson, E.F. Baerwald, C.K.R. Willis, R.M.R. Barclay, E.A. Snider, E.G. Crichton
2012, PLoS ONE (7)
Understanding animal mating systems is an important component of their conservation, yet the precise mating times for many species of bats are unknown. The aim of this study was to better understand the details and timing of reproductive events in species of bats that die most frequently at wind turbines...
Estimating the benefits of land imagery in environmental applications: a case study in nonpoint source pollution of groundwater
Richard L. Bernknopf, William M. Forney, Ronald P. Raunikar, Shruti K. Mishra
Ramanan Laxminarayan, Molly K. Maccauley, editor(s)
2012, Book chapter, The value of information
Moderate-resolution land imagery (MRLI) is crucial to a more complete assessment of the cumulative, landscape-level effect of agricultural land use and land cover on environmental quality. If this improved assessment yields a net social benefit, then that benefit reflects the value of information (VOI) from MRLI. Environmental quality and the...
INTERMAGNET and magnetic observatories
Jeffrey J. Love, Arnaud Chulliat
2012, EPOS Newsletter (12) 2-2
A magnetic observatory is a specially designed ground-based facility that supports time-series measurement of the Earth’s magnetic field. Observatory data record a superposition of time-dependent signals related to a fantastic diversity of physical processes in the Earth’s core, mantle, lithosphere, ocean, ionosphere, magnetosphere, and, even, the Sun and solar wind....
