Habitat selection and spawning success of walleye in a tributary to Owasco Lake, New York
Marc A. Chalupnicki, James H. Johnson, James E. McKenna Jr., Dawn E. Dittman
2010, North American Journal of Fisheries Management (30) 170-178
Walleyes Sander vitreus are stocked into Owasco Lake, New York, to provide a sport fishery, but the population must be sustained by annual hatchery supplementation despite the presence of appropriate habitat. Therefore, we evaluated walleye spawning success in Dutch Hollow Brook, a tributary of Owasco Lake, to determine whether early...
Peat
L.E. Apodaca
2010, Mining Engineering (62) 66-66
In 2009, domestic production of peat, excluding Alaska, was estimated to be 610 kt (672,000 st), compared with 615 kt (678,000 st) in 2008. In 2009, imports decreased to 906 kt (999,000 st) compared with 936 kt (1 million st) in 2008, and exports were estimated to have increased to...
Magnesium compounds
D.A. Kramer
2010, Mining Engineering (62) 62-63
Seawater and natural brines accounted for about 40 percent of U.S. magnesium compounds production in 2009. Dead-burned magnesia was produced by Martin Marietta Magnesia Specialties from well brines in Michigan. Caustic-calcined magnesia was recovered from seawater by Premier Chemicals in Florida, from well brines in Michigan by Martin Marietta and...
Potash
S.M. Jasinski
2010, Mining Engineering (62) 69-70
In 2009, the world potash market deteriorated as world demand, trade and sales fell dramatically. After potash prices reached record high levels in 2008, many consumers and dealers delayed purchases until the price dropped. Potash prices did not recede as quickly as other fertilizer commodities, which led to further increases...
Policies and practices of beach monitoring in the Great Lakes, USA: a critical review
Meredith B. Nevers, Richard L. Whitman
2010, Journal of Environmental Monitoring (12) 581-590
Beaches throughout the Great Lakes are monitored for fecal indicator bacteria (typically Escherichia coli) in order to protect the public from potential sewage contamination. Currently, there is no universal standard for sample collection and analysis or results interpretation. Monitoring policies are developed by individual beach management jurisdictions, and applications are...
The effect of error in theoretical Earth tide on calibration of borehole strainmeters
John O. Langbein
2010, Geophysical Research Letters (37)
Since the installation of borehole strainmeters into the ground locally distorts the strain in the rock, these strainmeters require calibration from a known source which typically is the Earth tide. Consequently, the accuracy of the observed strain changes from borehole strainmeters depends upon the calibration derived from modeling the Earth...
Low-altitude aerial color digital photographic survey of the San Andreas Fault
David K. Lynch, Kenneth W. Hudnut, David S.P. Dearborn
2010, Seismological Research Letters (81) 453-459
Ever since 1858, when Gaspard-Félix Tournachon (pen name Félix Nadar) took the first aerial photograph (Professional Aerial Photographers Association 2009), the scientific value and popular appeal of such pictures have been widely recognized. Indeed, Nadar patented the idea of using aerial photographs in mapmaking and surveying. Since then, aerial imagery...
Summer stream water temperature models for Great Lakes streams: New York
James E. McKenna, Ryan S. Butryn, Richard P. McDonald
2010, Transactions of the American Fisheries Society (139) 1399-1414
Temperature is one of the most important environmental influences on aquatic organisms. It is a primary driver of physiological rates and many abiotic processes. However, despite extensive research and measurements, synoptic estimates of water temperature are not available for most regions, limiting our ability to make systemwide and large-scale assessments...
A short-term look at potential changes in Lake Michigan slimy sculpin diets
John R. P. French III, Richard G. Stickel, Beth A. Stockdale, M. Glen Black
2010, Journal of Great Lakes Research (36) 376-379
Diporeia hoyi and Mysis relicta are the most important prey items of slimy sculpins (Cottus cognatus) in the Great Lakes. Slimy sculpins were collected from dreissenid-infested bottoms off seven Lake Michigan ports at depths of 27–73 m in fall 2003 to study their lake-wide diets. Relatively large dreissenid biomass occurred...
Archiving strategy for USGS EROS center and our future direction
John Faundeen
2010, Conference Paper, Proceedings of the 2010 Roadmap for Digital Preservation Interoperability Framework Workshop
The U. S. Geological Survey's Earth Resources Observation and Science Center has the responsibility to acquire, manage, and preserve our Nation's land observations. These records are obtained primarily from airplanes and satellites dating back to the 1930s. The ability to compare landscapes from the past with current information enables change...
230Th/U dating of a late Pleistocene alluvial fan along the southern San Andreas fault
Kathryn E.K. Fletcher, Warren D. Sharp, Katherine J. Kendrick, Whitney M. Behr, Kenneth W. Hudnut, Thomas C. Hanks
2010, GSA Bulletin (122) 1347-1359
U-series dating of pedogenic carbonate-clast coatings provides a reliable, precise minimum age of 45.1 ± 0.6 ka (2σ) for the T2 geomorphic surface of the Biskra Palms alluvial fan, Coachella Valley, California. Concordant ages for multiple subsamples from individual carbonate coatings provide evidence that the 238U-234U-230Th system has remained closed...
Precise tremor source locations and amplitude variations along the lower-crustal central San Andreas Fault
David R. Shelly, Jeanne L. Hardebeck
2010, Geophysical Research Letters (37)
We precisely locate 88 tremor families along the central San Andreas Fault using a 3D velocity model and numerous P and S wave arrival times estimated from seismogram stacks of up to 400 events per tremor family. Maximum tremor amplitudes vary along the fault by at least a factor of...
Importance of benthic production to fish populations in Lake Mead prior to the establishment of quagga mussels
John Umek, Sudeep Chandra, Michael Rosen, Marion Wittmann, Joe Sullivan, Erik Orsak
2010, Lake and Reservoir Management (26) 293-305
Limnologists recently have developed an interest in quantifying benthic resource contributions to higher-level consumers. Much of this research focuses on natural lakes with very little research in reservoirs. In this study, we provide a contemporary snapshot of the food web structure of Lake Mead to evaluate the contribution of benthic...
Testing mixing models of old and young groundwater in a tropical lowland rain forest with environmental tracers
D. Kip Solomon, David P. Genereux, Niel Plummer, Eurybiades Busenberg
2010, Water Resources Research (46)
We tested three models of mixing between old interbasin groundwater flow (IGF) and young, locally derived groundwater in a lowland rain forest in Costa Rica using a large suite of environmental tracers. We focus on the young fraction of water using the transient tracers CFC‐11, CFC‐12, CFC‐113, SF6, 3H, and bomb 14C....
Relationship and variation of qPCR and culturable enterococci estimates in ambient surface waters are predictable
Richard L. Whitman, Zhongfu Ge, Meredith B. Nevers, Alexandria B. Boehm, Eunice C. Chern, Richard A. Haugland, Ashley M. Lukasik, Marirosa Molina, Kasia Przybyla-Kelly, Dawn A. Shively, Emily M. White, Richard G. Zepp, Muruleedhara N. Byappanahalli
2010, Environmental Science & Technology (44) 5049-5054
The quantitative polymerase chain reaction (qPCR) method provides rapid estimates of fecal indicator bacteria densities that have been indicated to be useful in the assessment of water quality. Primarily because this method provides faster results than standard culture-based methods, the U.S. Environmental Protection Agency is currently considering its use as...
New plant records from the Hawaiian Archipelago
Forest Starr, Kim Starr, Lloyd L. Loope
Neal L. Evenhuis, Lucius G. Eldredge, editor(s)
2010, Bishop Museum Occasional Papers: Records of the Hawaii Biological Survey for 2008 (107) 61-68
The following contributions include 19 new plant records for the islands of Kure Atoll (1), Midway Atoll (7), Lāna‘i (9), Kaho‘olawe (1), and Maui (1). The records are comprised of one new state record and 18 new island records. All but one of the records are non-natives. Images of most...
Industrial sand and gravel
T.P. Dolley
2010, Mining Engineering (62) 56-56
Domestic production of industrial sand and gravel in 2009 was about 27 Mt (30 million st), declining by 10 percent compared with 2008. Certain end uses of industrial sand and gravel, such as foundry and glassmaking sand, may have declined by a factor greater than 10 percent in 2009. U.S....
Gemstones
D.W. Olson
2010, Mining Engineering (62) 50-51
Information on the gemstones industry in 2009 is presented. Specifically, details on U.S. production of natural gemstones and laboratory-created, simulant, and treated gemstones; consumption and uses of gemstones; gemstone prices; imports and exports of gemstones; and the outlook for the sector are provided....
Groundwater hydrology--coastal flow
Ward E. Sanford
2010, Nature Geoscience (3) 671-672
How groundwater flow varies when long-term external conditions change is little documented. Geochemical evidence shows that sea-level rise at the end of the last glacial period led to a shift in the flow patterns of coastal groundwater beneath Florida....
Mineral resource of the month: cesium
Marc A. Angulo
2010, Earth (55) 29-29
The article offers information on cesium, a golden alkali metal derived from the Latin word caesium which means bluish gray. It mentions that cesium is the first element discovered with the use of spectroscopy. It adds that the leading producer and supplier of cesium is Canada and there are 50,000...
Large-scale coastal change in the Columbia River littoral cell: an overview
Guy Gelfenbaum, George M. Kaminsky
2010, Marine Geology (273) 1-10
This overview introduces large-scale coastal change in the Columbia River littoral cell (CRLC). Covering 165 km of the southwest Washington and northwest Oregon coasts, the littoral cell is made up of wide low-sloping dissipative beaches, broad coastal dunes and barrier plains, three large estuaries, and is bounded by rocky headlands....
Current challenges using models to forecast seawater intrusion: lessons from the Eastern Shore of Virginia, USA
Ward E. Sanford, Jason P. Pope
2010, Hydrogeology Journal (18) 73-93
A three-dimensional model of the aquifer system of the Eastern Shore of Virginia, USA was calibrated to reproduce historical water levels and forecast the potential for saltwater intrusion. Future scenarios were simulated with two pumping schemes to predict potential areas of saltwater intrusion. Simulations suggest that only a few wells...
Orientation-independent, nongeometric-mean measures of seismic intensity from two horizontal components of motion
David M. Boore
2010, Bulletin of the Seismological Society of America (100) 1830-1835
New measures of spectral intensity based on the horizontal components of ground shaking are introduced. These new measures are independent of the in situ orientation of the recordings and encompass the full range of spectral amplitudes over all possible rotation angles. Unlike previously introduced measures that are also orientation independent,...
New software methods in radar ornithology using WSR-88D weather data and potential application to monitoring effects of climate change on bird migration
Reginald Mead, John Paxton, Richard S. Sojda
David A. Swayne, Wanhong Yang, A.A. Voinov, A. Rizzoli, T. Filatova, editor(s)
2010, Conference Paper, 2010 International Congress on Environmental Modelling and Software; Modelling for Environment's Sake, Fifth Biennial Meeting, Ottawa, Canada
Radar ornithology has provided tools for studying the movement of birds, especially related to migration. Researchers have presented qualitative evidence suggesting that birds, or at least migration events, can be identified using large broad scale radars such as the WSR-88D used in the NEXRAD weather surveillance system. This is potentially...
Geologic characteristics and movement of the Meadow Creek landslide, part of the Coal Hill landslide complex, western Kane County, Utah
Francis X. Ashland, Greg N. McDonald
Stephanie M. Carney, David E. Tabet, Cari L. Johnson, editor(s)
2010, Utah Geological Association Publication 39: Geology of South-Central Utah 38-60
The Meadow Creek landslide, part of the Coal Hill landslide complex in western Kane County, Utah, is about 1.7 miles (2.7 km) wide and 1.3 miles (2.1 km) long and contains six smaller historical slides. The upper part of the Meadow Creek landslide is gently sloping and consists of...
