Geomorphic Framework to assess changes to aquatic habitat due to flow regulation and channel and floodplain alteration, Cedar River, Washington
Andrew S. Gendaszek, Christopher S. Magirl, Christiana R. Czuba, Christopher P. Konrad, Rand Little
2010, Report
Flow regulation, bank armoring, and floodplain alteration since the early 20th century have contributed to significant changes in the hydrologic regime and geomorphic processes of the Cedar River in Washington State. The Cedar River originates in the Cascade Range, provides drinking water to the Seattle metropolitan area, and supports several...
Mechanical suppression of northern pike (Esox lucius) populations in small Arizona reservoirs
Yuliya Kuzmenko, Timofy Spesiviy, Scott A. Bonar
2010, Fisheries Research Report 01-10
Introduced populations of northern pike Esox lucius have provided angling opportunities in the western United States (McMahon and Bennett 1996). However, the northern pike is a voracious piscivore and its large size, high fecundity, and broad physiological tolerance make it capable of drastically altering ecosystems it invades (Marchetti et al....
Glacier modeling in support of field observations of mass balance at South Cascade Glacier, Washington, USA
Edward G. Josberger, William R. Bidlake
2010, Report
The long-term USGS measurement and reporting of mass balance at South Cascade Glacier was assisted in balance years 2006 and 2007 by a new mass balance model. The model incorporates a temperature-index melt computation and accumulation is modeled from glacier air temperature and gaged precipitation at a remote site. Mass...
Human enteric viruses in groundwater indicate offshore transport of human sewage to coral reefs of the Upper Florida Keys
J. Carrie Futch, Dale W. Griffin, Erin K. Lipp
2010, Environmental Microbiology (12) 964-974
To address the issue of human sewage reaching corals along the main reef of the Florida Keys, samples were collected from surface water, groundwater and coral [surface mucopolysaccharide layers (SML)] along a 10 km transect near Key Largo, FL. Samples were collected semi-annually between July 2003 and September 2005 and...
Use of regression‐based models to map sensitivity of aquatic resources to atmospheric deposition in Yosemite National Park, USA
David W. Clow, Leora Nanus, Brian Huggett
2010, Water Resources Research (46)
An abundance of exposed bedrock, sparse soil and vegetation, and fast hydrologic flushing rates make aquatic ecosystems in Yosemite National Park susceptible to nutrient enrichment and episodic acidification due to atmospheric deposition of nitrogen (N) and sulfur (S). In this study, multiple linear regression (MLR) models were created to estimate...
Prioritization of high-production volume (HPV) chemicals for assessing water resources
James Pankow, John Zogorski, Joshua Valder, Wentai Luo
2010, Report
PDF version of a presentation on assessing water resources given at the 2010 National Water-Quality Monitoring Conference....
Groundwater-surface water interactions within the Chehalis River Basin: presentation ot the Chehalis Basin Partnership
Andy Gendaszek
2010, Report
PDF of a presentation on the groundwater - surface water interactions in the Chehalis River Basin in Washington state....
Water-quality, water-level, and discharge data associated with the Mississippi embayment agricultural chemical-transport study, 2006-2008
Melinda S. Dalton, Claire E. Rose, Richard H. Coupe
2010, Data Series 546
In 2006, the Agricultural Chemicals: Sources, Transport and Fate study team (Agricultural Chemicals Team, ACT) of the U.S. Geological Survey National Water-Quality Assessment Program began a study in northwestern Mississippi to evaluate the influence of surface-water recharge on the occurrence of agriculturally related nutrients and pesticides in the Mississippi River...
Are wolves saving Yellowstone's aspen? A landscape-level test of a behaviorally mediated trophic cascade
Matthew J. Kauffman, Jedediah F. Brodie, Erik S. Jules
2010, Ecology (91) 2742-2755
Behaviorally mediated trophic cascades (BMTCs) occur when the fear of predation among herbivores enhances plant productivity. Based primarily on systems involving small-bodied predators, BMTCs have been proposed as both strong and ubiquitous in natural ecosystems. Recently, however, synthetic work has suggested that the existence of BMTCs may be mediated by...
Quarterly wildlife mortality report: October 2009 to December 2009
Anne Ballmann, C. LeAnn White, Krysten Schuler, Jennifer Bradsby
2010, Wildlife Disease Association Newsletter 6-8
No abstract available....
Discussion of "Natural hydrograph of the Missouri River near Sioux City and the least tern and piping plover" by Donald G. Jorgensen
D. Catlin, R. Jacobson, M. Sherfy, M. Anteau, J. Felio, J. Fraser, C. Lott, T. Shaffer, J. Stucker
2010, Journal of Hydrologic Engineering (15) 1076-1078
The author analyzed stream-flow data from a single gauging station to predict preengineering flooding frequency for "sandbar islands adjacent to stream gauge on the Missouri River at Sioux City." He predicted dates that sandbars would be exposed and discussed his results relative to reproduction by least terns (Sternula antillarum) and...
Surveys for presence of Oregon spotted frog (Rana pretiosa): background information and field methods
Christopher A. Pearl, David Clayton, Lauri Turner
2010, Report
The Oregon spotted frog (Rana pretiosa) is the most aquatic of the native frogs in the Pacific Northwest. The common name derives from the pattern of black, ragged-edged spots set against a brown or red ground color on the dorsum of adult frogs. Oregon spotted frogs are generally associated with...
Sexual difference in PCB concentrations of lake trout (Salvelinus namaycush) from Lake Ontario
Charles P. Madenjian, Michael J. Keir, D. Michael Whittle, George E. Noguchi
2010, Science of the Total Environment (408) 1725-1730
We determined polychlorinated biphenyl (PCB) concentrations in 61 female lake trout (Salvelinus namaycush) and 71 male lake trout from Lake Ontario (Ontario, Canada and New York, United States). To estimate the expected change in PCB concentration due to spawning, PCB concentrations in gonads and in somatic tissue of lake trout...
Scientific drilling into the San Andreas Fault Zone
Mark Zoback, Stephen Hickman, William Ellsworth
2010, Eos, Transactions, American Geophysical Union (91) 197-199
This year, the world has faced energetic and destructive earthquakes almost every month. In January, an M = 7.0 event rocked Haiti, killing an estimated 230,000 people. In February, an M = 8.8 earthquake and tsunami claimed over 500 lives and caused billions of dollars of damage in Chile. Fatal...
Analysis of nonvolcanic tremor on the San Andreas Fault near Parkfield, CA using U.S. Geological Survey Parkfield Seismic Array
Jon B. Fletcher, Lawrence M. Baker
2010, Journal of Geophysical Research B: Solid Earth (115)
Reports by Nadeau and Dolenc (2005) that tremor had been detected near Cholame Valley spawned an effort to use UPSAR (U. S. Geological Survey Parkfield Seismic Array) to study characteristics of tremor. UPSAR was modified to record three channels of velocity at 40–50 sps continuously in January 2005 and ran...
Wind-enhanced resuspension in the shallow waters of South San Francisco Bay: Mechanisms and potential implications for cohesive sediment transport
Andreas Brand, Jessica R. Lacy, Kevin Hsu, Daniel Hoover, Steve Gladding, Mark T. Stacey
2010, Journal of Geophysical Research C: Oceans (115)
We investigated the driving forces of sediment dynamics at the shoals in South San Francisco Bay. Two stations were deployed along a line perpendicular to a 14 m deep channel, 1000 and 2000 m from the middle of the channel. Station depths were 2.59 and 2.19 m below mean lower...
Quasi-periodic recurrence of large earthquakes on the southern San Andreas fault
Katherine M. Scharer, Glenn P. Biasi, Ray J. Weldon II, Tom E. Fumal
2010, Geology (38) 555-558
It has been 153 yr since the last large earthquake on the southern San Andreas fault (California, United States), but the average interseismic interval is only ~100 yr. If the recurrence of large earthquakes is periodic, rather than random or clustered, the length of this period is notable and would...
Decline of shortjaw cisco in Lake Superior: the role of overfishing and risk of extinction
Charles R. Bronte, Michael H. Hoff, Owen T. Gorman, Wayne E. Thogmartin, Philip J. Schneeberger, Thomas N. Todd
2010, Transactions of the American Fisheries Society (139) 735-748
Recent reviews have further documented the decline of the shortjaw cisco Coregonus zenithicus in Lake Superior. This fish was the most abundant deepwater cisco species in Lake Superior in the early 1920s but presently makes up less than 1% of all deepwater ciscoes (i.e., including shortjaw cisco, bloater C. hoyi,...
Coherence of Mach fronts during heterogeneous supershear earthquake rupture propagation: Simulations and comparison with observations
A. Bizzarri, Eric M. Dunham, P. Spudich
2010, Journal of Geophysical Research B: Solid Earth (115) B08301
We study how heterogeneous rupture propagation affects the coherence of shear and Rayleigh Mach wavefronts radiated by supershear earthquakes. We address this question using numerical simulations of ruptures on a planar, vertical strike-slip fault embedded in a three-dimensional, homogeneous, linear elastic half-space. Ruptures propagate spontaneously in accordance with a linear...
Thiamine status and culture of rainbow smelt (Osmerus mordax) from Owasco Lake, New York
Marc A. Chalupnicki, H. George Ketola, Micheal H. Zehfus, Jonathan R. Crosswait, Jacques Rinchard, James E. McKenna Jr.
2010, Journal of Freshwater Ecology (25) 211-217
In 2005, 2008, and 2009, eggs were collected for analysis of total thiamine fiom 2, 58, and 30 gravid rainbow smelt (Osmerus mordax) captured in Edgewater Creek, Owasco Lake, New York, respectively. Mean egg thiamine concentrations (nmollg i standard error) in 2005, 2008, and 2009 were 6.0 ± 1.8, 13.3...
Isolation and characterization of eight novel microsatellite loci in the double-crested cormorant (Phalacrocorax auritus)
Dacey Mercer, Susan Haig, Thomas Mullins
2010, Conservation Genetics Resources (2) 119-121
We describe the isolation and characterization of eight microsatellite loci from the double-crested cormorant (Phalacrocorax auritus). Genetic variability was assessed using 60 individuals from three populations. All loci were variable with the number of alleles ranging from two to 17 per locus, and observed heterozygosity varying from 0.05 to 0.89....
Time-averaged paleomagnetic field at the equator: Complete data and results from the Galapagos Islands, Ecuador
Sherman Gromme, Edward A. Mankinen, Michel Prevot
2010, Geochemistry, Geophysics, Geosystems (11)
We present here the complete paleomagnetic laboratory results from a collection of approximately 1500 oriented cores from all 16 of the Galapagos Islands, Ecuador, collected by Allan Cox in 1964–1965 but nearly all previously unpublished. The islands are located in the eastern Pacific Ocean within 1.4° of latitude from the...
Geophysical Research Letters: New policies improve top-cited geosciences journal
Eric Calais, Noah Diffenbaugh, Paolo D'Odorico, Ruth Harris, Wolfgang Knorr, Benoit Lavraud, Anne Mueller, William Peterson, Eric Rignot, Meric Srokosz, Peter Strutton, Geoff Tyndall, Michael Wysession, Paul Williams
2010, Eos, Transactions, American Geophysical Union (91) 337-337
Geophysical Research Letters (GRL) is the American Geophysical Union's premier journal of fast, groundbreaking communication. It rapidly publishes high- impact,letter-length articles, and it is the top-cited multidisciplinary geosciences journal over the past 10 years, with an impact factor that increased again in 2009, to 3.204. For manuscripts submitted to GRL,...
Rapid middle Miocene extension and unroofing of the southern Ruby Mountains, Nevada
Joseph P. Colgan, Keith A. Howard, Robert J. Fleck, Joseph L. Wooden
2010, Tectonics (29)
Paleozoic rocks in the northern Ruby Mountains were metamorphosed during Mesozoic crustal shortening and Cenozoic magmatism, but equivalent strata in the southern Ruby Mountains were never buried deeper than stratigraphic depths prior to exhumation in the footwall of a west dipping brittle normal fault. In the southern Ruby Mountains, Miocene...
Worldwide status of burbot and conservation measures
Martin A. Stapanian, Vaughn L. Paragamian, Charles P. Madenjian, James R. Jackson, Jyrki Lappalainen, Matthew J. Evenson, Matthew D. Neufeld
2010, Fish and Fisheries (11) 34-56
Although burbot (Lota lota Gadidae) are widespread and abundant throughout much of their natural range, there are many populations that have been extirpated, endangered or are in serious decline. Due in part to the species’ lack of popularity as a game and commercial fish, few regions consider burbot in management...
