Evaluation of hypotheses for explaining temporal trends in Atlantic salmon parr densities in Northeast U.S. Rivers
Tyler Wagner, John A. Sweka
2011, North American Journal of Fisheries Management (31) 340-351
Atlantic salmon Salmo salar in the USA have declined dramatically and their persistence is heavily dependent on stocking juvenile fish, predominantly fry. The success of stocking hatchery fry is evaluated annually throughout New England by electrofishing surveys targeting age-1 parr. The objective of this study was to examine temporal trends in Atlantic...
The humpbacked species richness-curve: A contingent rule for community ecology
John H. Graham, Jeffrey J. Duda
2011, International Journal of Ecology (2011)
Functional relationships involving species richness may be unimodal, monotonically increasing, monotonically decreasing, bimodal, multimodal, U-shaped, or with no discernable pattern. The unimodal relationships are the most interesting because they suggest dynamic, nonequilibrium community processes. For that reason, they are also contentious. In this paper, we provide a wide-ranging review of...
Hurricanes, sea level rise, and coastal change
Sallenger Jr.
Ping Wang, Julie D. Rosati, Tiffany M. Roberts, editor(s)
2011, Conference Paper, Coastal Sediments 2011
Sixteen hurricanes have made landfall along the U.S. east and Gulf coasts over the past decade. For most of these storms, the USGS with our partners in NASA and the U.S. Army Corps of Engineers have flown before and after lidar missions to detect changes in beaches and dunes. The...
Recent wetland land loss due to hurricanes: Improved estimates based upon multiple source images
Monica Palaseanu-Lovejoy, Christine J. Kranenburg, John Brock, John Barras
2011, Conference Paper, Proceedings of the Coastal Sediments 2011
The objective of this study was to provide a moderate resolution 30-m fractional water map of the Chenier Plain for 2003, 2006 and 2009 by using information contained in high-resolution satellite imagery of a subset of the study area. Indices and transforms pertaining to vegetation and water were created using...
Does littoral sand bypass the head of Mugu Submarine Canyon? - a modeling study
Jingping Xu, Edwin Elias, Nicole Kinsman
Ping Wang, Julie D. Rosati, Tiffany M. Roberts, editor(s)
2011, Conference Paper, Proceedings of the Coastal Sediments 2011
A newly developed sand-tracer code for the process-based model Delft3D (Deltares, The Netherlands) was used to simulate the littoral transport near the head of the Mugu Submarine Canyon in California, USA. For westerly swells, which account for more than 90% of the wave conditions in the region, the sand tracers...
Geologic controls on sediment distribution and transport pathways around the Chandeleur Islands, LA., USA
David Twichell, Elizabeth A. Pendleton, Wayne Baldwin, James Flocks, Michael Miner, Mark Kulp
2011, Conference Paper, The proceedings of the Coastal Sediments 2011
Geophysical surveys around the Chandeleur Islands provide the necessary data to map the thickness and distribution of the Holocene deposit associated with this barrier island system. This system rests uncomformably on St. Bernard Delta deposits of the Mississippi Delta plain and is thinnest under the central part of the island...
The influence of sea-level rise on fringing reef sediment dynamics: field observations and numerical modeling
Curt D. Storlazzi, Michael E. Field, Edwin Elias, M. Katherine Presto
2011, Conference Paper, The proceedings of the Coastal Sediments 2011
While most climate projections suggest that sea level may rise on the order of 0.5-1.0 m by 2100, it is not clear how fluid flow and sediment transport on fringing reefs might change in response to this rapid sea-level rise. Field observations and numerical modeling suggest that an increase in...
Recent scientific advances and their implications for sand management near San Francisco, California: The influences of the ebb tidal delta
Daniel M. Hanes, Patrick L. Barnard, Kate Dallas, Edwin Elias, Li H. Erikson, Jodi Eshleman, Jeff Hansen, Tian Jian Hsu, Fengyan Shi
2011, Conference Paper, The proceedings of the Coastal Sediments 2011
Recent research in the San Francisco, California, U.S.A., coastal region has identified the importance of the ebb tidal delta to coastal processes. A process-based numerical model is found to qualitatively reproduce the equilibrium size and shape of the delta. The ebb tidal delta itself has been contracting over the past...
Changes in Selected Metals Concentrations from the Mid-1980s to the Mid-2000s in a Stream Draining the Picher Mining District of Oklahoma
William J. Andrews, Jason R. Masoner
2011, The Open Environmental & Biological Monitoring Journal (4) 36-44
After abandonment in the late 1960s, the Picher mining district of Oklahoma, once the largest source of lead and zinc in the world, continued to be affected by severe environmental degradation, with scattered subsidence and abundant toxic metals such as cadmium and lead seeping from flooded underground mine workings and...
A case study of green tree frog population size estimation by repeated capture-mark-recapture method with individual tagging: A parametric bootstrap method vs. Jolly-Seber method
Xing Yang, Nabendu Pal, Azmy S. Ackleh, Jacoby Carter
2011, Journal of Statistical Computation and Simulation (81) 1879-1895
This paper deals with estimation of a green tree frog population in an urban setting using repeated capture–mark–recapture (CMR) method over several weeks with an individual tagging system which gives rise to a complicated generalization of the hypergeometric distribution. Based on the maximum likelihood estimation, a parametric bootstrap approach is...
Sediment concentrations, loads, and particle-size distributions in the Red River of the North and selected tributaries near Fargo, North Dakota, during the 2010 spring high-flow event
Robert A. Blanchard, Christopher A. Ellison, Joel M. Galloway, Dennis A. Evans
2011, Scientific Investigations Report 2011-5064
Lead-soft and easy to cast
S.J. Kropschot, Jeff L. Doebrich
2011, Fact Sheet 2011-3045
Water and rock geochemistry, geologic cross sections, geochemical modeling, and groundwater flow modeling for identifying the source of groundwater to Montezuma Well, a natural spring in central Arizona
Raymond H. Johnson, Ed DeWitt, Laurie Wirt, L. Rick Arnold, John D. Horton
2011, Open-File Report 2011-1063
The National Park Service (NPS) seeks additional information to better understand the source(s) of groundwater and associated groundwater flow paths to Montezuma Well in Montezuma Castle National Monument, central Arizona. The source of water to Montezuma Well, a flowing sinkhole in a desert setting, is poorly understood. Water emerges from...
Geology, Hydrology, and Water Quality of the Little Blackwater River Watershed, Dorchester County, Maryland, 2006-09
Brandon J. Fleming, Benjamin D. DeJong, Daniel J. Phelan
2011, Scientific Investigations Report 2011-5054
The Little Blackwater River watershed is a low-lying tidal watershed in Dorchester County, Maryland. The potential exists for increased residential development in a mostly agricultural watershed that drains into the Blackwater National Wildlife Refuge. Groundwater and surface-water levels were collected along with water-quality samples to document hydrologic and geochemical conditions...
Economic analysis of the 2010 U.S. Geological Survey assessment of undiscovered oil and gas in the National Petroleum Reserve in Alaska
Emil D. Attanasi, Philip A. Freeman
2011, Open-File Report 2011-1103
No abstract available....
Hydrology, water budget, and water chemistry of Lake Panasoffkee, west-central Florida
W. Scott McBride, Jason C. Bellino, Amy Swancar
2011, Scientific Investigations Report 2010-5237
Selected streamflow statistics for streamgage locations in and near Pennsylvania
Marla H. Stuckey and Mark A. Roland
2011, Open-File Report 2011-1070
Preliminary geologic map of the Cottonwood Mountain quadrangle, Iron County, Utah
Florian Maldonado, John J. Anderson, Robert F. Biek
2011, Open-File Report 2010-1334
Status of groundwater levels and storage volume in the Equus Beds aquifer near Wichita, Kansas, July 2010
Cristi V. Hansen
2011, Scientific Investigations Map 3159
Limnological Conditions and Occurrence of Taste-and-Odor Compounds in Lake William C. Bowen and Municipal Reservoir #1, Spartanburg County, South Carolina, 2006-2009
Celeste A. Journey, Jane M. Arrington, Karen M. Beaulieu, Jennifer L. Graham, Paul M. Bradley
2011, Scientific Investigations Report 2011-5060
Limnological conditions and the occurrence of taste-and-odor compounds were studied in two reservoirs in Spartanburg County, South Carolina, from May 2006 to June 2009. Lake William C. Bowen and Municipal Reservoir #1 are relatively shallow, meso-eutrophic, warm monomictic, cascading impoundments on the South Pacolet River. Overall, water-quality conditions and phytoplankton...
Patterns of larval sucker emigration from the Sprague and lower Williamson Rivers of the Upper Klamath Basin, Oregon, prior to the removal of Chiloquin Dam-2007/2008 annual report
Craig M. Ellsworth, David T. Banks, Scott P. VanderKooi
2011, Open-File Report 2011-1108
The National Map
Larry J. Sugarbaker, William J. Carswell Jr.
2011, Fact Sheet 2011-3042
Geologic framework and hydrogeology of the middle Carson River Basin, Eagle, Dayton, and Churchill Valleys, West-Central Nevada
Douglas K. Maurer
2011, Scientific Investigations Report 2011-5055
Changes in land use and water use and increasing development of water resources in the middle Carson River basin may affect flow of the river and, in turn, affect downstream water users dependent on sustained river flows to Lahontan Reservoir. The U.S. Geological Survey, in cooperation with the Bureau of...
Selected Images of the Effects of the October 15, 2006, Kiholo Bay-Mahukona, Hawai'i, Earthquakes and Recovery Efforts
Taeko Jane Takahashi, Nancy A. Ikeda, Paul G. Okubo, Maurice K. Sako, David C. Dow, Anna M. Priester, Nolan A. Steiner
2011, Data Series 506
Early on the morning of October 15, 2006, two moderate earthquakes—the largest in decades—struck the Island of Hawai‘i. The first of these, which occurred at 7:07 a.m., HST (1707 UTC), was a magnitude (M) 6.7 earthquake, centered beneath Kīholo Bay on the northwestern coast of the island (19.878°N, 155.935°W), at...
Paleomagnetic correlation of surface and subsurface basaltic lava flows and flow groups in the southern part of the Idaho National Laboratory, Idaho, with paleomagnetic data tables for drill cores
Duane E. Champion, Mary K.V. Hodges, Linda C. Davis, Marvin A. Lanphere
2011, Scientific Investigations Report 2011-5049
Paleomagnetic inclination and polarity studies have been conducted on thousands of subcore samples from 51 coreholes located at and near the Idaho National Laboratory. These studies are used to paleomagnetically characterize and correlate successive stratigraphic intervals in each corehole to similar depth intervals in adjacent coreholes. Paleomagnetic results from 83...
