Seasonal flux and assemblage composition of planktic foraminifera from the northern Gulf of Mexico, 2008–14
Caitlin E. Reynolds, Julie N. Richey
2016, Open-File Report 2016-1115
The U.S. Geological Survey anchored a sediment trap in the northern Gulf of Mexico in January 2008 to collect seasonal time-series data on the flux and assemblage composition of live planktic foraminifers. This report provides an update of the previous time-series data to include continuous results from January 2013 through...
Agricultural irrigated land-use inventory for the counties in the Suwannee River Water Management District in Florida, 2015
Richard L. Marella, Joann F. Dixon, Darbi R. Berry
2016, Open-File Report 2016-1111
A detailed inventory of irrigated crop acreage is not available at the level of resolution needed to accurately estimate agricultural water use or to project future water demands in many Florida counties. A detailed digital map and summary of irrigated acreage during the 2015 growing season was developed for 13...
Catalog of microscopic organisms of the Everglades, Part 1—The cyanobacteria
Barry H. Rosen, Jan Mares
2016, Open-File Report 2016-1114
The microscopic organisms of the Everglades include numerous prokaryotic organisms, including the eubacteria, such as the cyanobacteria and non-photosynthetic bacteria, as well as several eukaryotic algae and protozoa that form the base of the food web. This report is part 1 in a series of reports that describe microscopic organisms...
Relative distribution and abundance of fishes and crayfish in 2010 and 2014 prior to saltcedar (Tamarix ssp.) removal in the Amargosa River Canyon, southeastern California
Mark E. Hereford
2016, Open-File Report 2016-1112
The Amargosa River Canyon, located in the Mojave Desert of southeastern California, contains the longest perennial reach of the Amargosa River. Because of its diverse flora and fauna, it has been designated as an Area of Critical Environmental Concern and a Wild and Scenic River by the Bureau of Land...
Hurricane Sandy washover deposits on southern Long Beach Island, New Jersey
James M. Bishop, Bruce M. Richmond, Nicholas J. Zaremba, Brent D. Lunghino, Haunani H. Kane
2016, Open-File Report 2016-1090
Sedimentologic and topographic data from Hurricane Sandy washover deposits were collected from southern Long Beach Island, New Jersey, in order to document changes to the barrier-island beaches, dunes, and coastal wetlands caused by Hurricane Sandy and subsequent storm events. These data will provide a baseline dataset for use in future...
Near-field receiving water monitoring of trace metals and a benthic community near the Palo Alto Regional Water Quality Control Plant in south San Francisco Bay, California; 2015
Daniel J. Cain, Janet K. Thompson, Jeffrey Crauder, Francis Parchaso, A. Robin Stewart, Matthew A. Turner, Michelle I. Hornberger, Samuel N. Luoma
2016, Open-File Report 2016-1118
Trace-metal concentrations in sediment and in the clam Macoma petalum (formerly reported as Macoma balthica), clam reproductive activity, and benthic macroinvertebrate community structure were investigated in a mudflat 1 kilometer south of the discharge of the Palo Alto Regional Water Quality Control Plant (PARWQCP) in South San Francisco Bay,...
The structure and composition of Holocene coral reefs in the Middle Florida Keys
Lauren T. Toth, Anastasios Stathakopoulos, Ilsa B. Kuffner
2016, Open-File Report 2016-1074
The Florida Keys reef tract (FKRT) is the largest coral-reef ecosystem in the continental United States. The modern FKRT extends for 362 kilometers along the coast of South Florida from Dry Tortugas National Park in the southwest, through the Florida Keys National Marine Sanctuary (FKNMS), to Fowey Rocks reef in...
Pacific walrus coastal haulout database, 1852-2016— Background report
Anthony S. Fischbach, Anatoly A. Kochnev, Joel L. Garlich-Miller, Chadwick V. Jay
2016, Open-File Report 2016-1108
Walruses are large benthic predators that rest out of water between foraging bouts. Coastal “haulouts” (places where walruses rest) are formed by adult males in summer and sometimes by females and young when sea ice is absent, and are often used repeatedly across seasons and years. Understanding the geography and historical...
Input-form data for the U.S. Geological Survey assessment of the Mississippian Barnett Shale of the Bend Arch-Fort Worth Basin Province, 2015
Kristen R. Marra, Ronald R. Charpentier, Christopher J. Schenk, Michael D. Lewan, Heidi M. Leathers-Miller, Timothy R. Klett, Stephanie B. Gaswirth, Phuong A. Le, Tracey J. Mercier, Janet K. Pitman, Marilyn E. Tennyson
2016, Open-File Report 2016-1097
In 2015, the U.S. Geological Survey (USGS) released an updated assessment of undiscovered, technically recoverable shale gas and shale oil resources of the Mississippian Barnett Shale in north-central Texas (Marra and others, 2015). The Barnett Shale was assessed using the standard continuous (unconventional) methodology established by the USGS for two...
Low-flow frequency and flow duration of selected South Carolina streams in the Savannah and Salkehatchie River Basins through March 2014
Toby D. Feaster, Wladmir B. Guimaraes
2016, Open-File Report 2016-1101
An ongoing understanding of streamflow characteristics of the rivers and streams in South Carolina is important for the protection and preservation of the State’s water resources. Information concerning the low-flow characteristics of streams is especially important during critical flow periods, such as during the historic droughts that South Carolina has...
Report from the workshop on climate downscaling and its application in high Hawaiian Islands, September 16–17, 2015
David A. Helweg, Victoria Keener, Jeff M. Burgett
2016, Open-File Report 2016-1102
In the subtropical and tropical Pacific islands, changing climate is predicted to influence precipitation and freshwater availability, and thus is predicted to impact ecosystems goods and services available to ecosystems and human communities. The small size of high Hawaiian Islands, plus their complex microlandscapes, require downscaling of global climate models...
Structure of the 1906 near-surface rupture zone of the San Andreas Fault, San Francisco Peninsula segment, near Woodside, California
C.M. Rosa, R. D. Catchings, M. J. Rymer, Karen Grove, M. R. Goldman
2016, Open-File Report 2016-1063
High-resolution seismic-reflection and refraction images of the 1906 surface rupture zone of the San Andreas Fault near Woodside, California reveal evidence for one or more additional near-surface (within about 3 meters [m] depth) fault strands within about 25 m of the 1906 surface rupture. The 1906 surface rupture above the...
Identifying bird and reptile vulnerabilities to climate change in the southwestern United States
James R. Hatten, J. Tomasz Giermakowski, Jennifer A. Holmes, Erika M. Nowak, Matthew J. Johnson, Kirsten E. Ironside, Charles van Riper III, Michael Peters, Charles Truettner, Kenneth L. Cole
2016, Open-File Report 2016-1085
Current and future breeding ranges of 15 bird and 16 reptile species were modeled in the Southwestern United States. Rather than taking a broad-scale, vulnerability-assessment approach, we created a species distribution model (SDM) for each focal species incorporating climatic, landscape, and plant variables. Baseline climate (1940–2009) was characterized with Parameter-elevation...
Assessing landslide potential on coastal bluffs near Mukilteo, Washington—Geologic site characterization for hydrologic monitoring
Benjamin B. Mirus, Joel B. Smith, Benjamin Stark, York Lewis, Abigail Michel, Rex L. Baum
2016, Open-File Report 2016-1082
During the summer 2015, the U.S. Geological Survey collected geologic and geotechnical data for two sites on coastal bluffs along the eastern shore of Puget Sound, Washington. The U.S. Geological Survey also installed hydrologic instrumentation at the sites and collected specimens for laboratory testing. The two sites are located on...
Updated logistic regression equations for the calculation of post-fire debris-flow likelihood in the western United States
Dennis M. Staley, Jacquelyn A. Negri, Jason W. Kean, Jayme L. Laber, Anne C. Tillery, Ann M. Youberg
2016, Open-File Report 2016-1106
Wildfire can significantly alter the hydrologic response of a watershed to the extent that even modest rainstorms can generate dangerous flash floods and debris flows. To reduce public exposure to hazard, the U.S. Geological Survey produces post-fire debris-flow hazard assessments for select fires in the western United States. We use...
Mercury concentrations in water and mercury and selenium concentrations in fish from Brownlee Reservoir and selected sites in the Boise and Snake Rivers, Idaho and Oregon, 2013–15
Marshall L. Williams, Dorene E. MacCoy
2016, Open-File Report 2016-1098
Mercury (Hg) analyses were conducted on samples of sport fish and water collected from selected sampling sites in Brownlee Reservoir and the Boise and Snake Rivers to meet National Pollution Discharge and Elimination System (NPDES) permit requirements for the City of Boise, Idaho, between 2013 and 2015. City of...
Jaguar taxonomy and genetic diversity for southern Arizona, United States, and Sonora, Mexico
Melanie Culver, Alexander Ochoa Hein
2016, Open-File Report 2016-1109
Executive SummaryThe jaguar is the largest Neotropical felid and the only extant representative of the genus Panthera in the Americas. In recorded history, the jaguars range has extended from the Southern United States, throughout Mexico, to Central and South America, and they occupy a wide variety of habitats. A previous...
Relation between Enterococcus concentrations and turbidity in fresh and saline recreational waters, coastal Horry County, South Carolina, 2003–04
James Landmeyer, Thomas J. Garigen
2016, Open-File Report 2016-1015
Bacteria related to the intestinal tract of humans and other warm-blooded animals have been detected in fresh and saline surface waters used for recreational purposes in coastal areas of Horry County, South Carolina, since the early 2000s. Specifically, concentrations of the facultative anaerobic organism, Enterococcus, have been observed to exceed...
Evaluating water management scenarios to support habitat management for the Cape Sable seaside sparrow
James M. Beerens, Stephanie S. Romañach, Mark McKelvy
2016, Open-File Report 2016-1107
The endangered Cape Sable seaside sparrow (Ammodramus maritimus mirabilis) is endemic to south Florida and a key indicator species of marl prairie, a highly diverse freshwater community in the Florida Everglades. Maintenance and creation of suitable habitat is seen as the most important pathway to the persistence of the six...
QRev—Software for computation and quality assurance of acoustic doppler current profiler moving-boat streamflow measurements—Technical manual for version 2.8
David S. Mueller
2016, Open-File Report 2016-1068
The software program, QRev applies common and consistent computational algorithms combined with automated filtering and quality assessment of the data to improve the quality and efficiency of streamflow measurements and helps ensure that U.S. Geological Survey streamflow measurements are consistent, accurate, and independent of the manufacturer of the instrument used...
Estimating juvenile Chinook salmon (Oncorhynchus tshawytscha) abundance from beach seine data collected in the Sacramento–San Joaquin Delta and San Francisco Bay, California
Russell W. Perry, Joseph E. Kirsch, A. Noble Hendrix
2016, Open-File Report 2016-1099
Resource managers rely on abundance or density metrics derived from beach seine surveys to make vital decisions that affect fish population dynamics and assemblage structure. However, abundance and density metrics may be biased by imperfect capture and lack of geographic closure during sampling. Currently, there is considerable uncertainty about the...
Gravity and magnetic studies of the eastern Mojave Desert, California and Nevada
Kevin M. Denton, David A. Ponce
2016, Open-File Report 2016-1070
IntroductionFrom May 2011 to August 2014, the U.S. Geological Survey (USGS) collected gravity data at more than 2,300 stations and physical property measurements on more than 640 rock samples from outcrops in the eastern Mojave Desert, California and Nevada. Gravity, magnetic, and physical-property data are used to study and locate...
Preliminary peak stage and streamflow data at selected U.S. Geological Survey streamgages for flooding in the central and southeastern United States during December 2015 and January 2016
Robert R. Holmes Jr., Kara M. Watson, Thomas E. Harris
2016, Open-File Report 2016-1092
Flooding occurred in the central and southeastern United States during December 2015 and January 2016. The flooding was the result of more than 20 inches of rain falling in a 19 day period from December 12 to December 31, 2015. U.S. Geological Survey streamgages recorded 23 peaks of record during...
Building groundwater modeling capacity in Mongolia
Joshua F. Valder, Janet M. Carter, Mark T. Anderson, Kyle W. Davis, Michelle A. Haynes, Dorjsuren Dechinlhundev
2016, Open-File Report 2016-1096
Ulaanbaatar, the capital city of Mongolia (fig. 1), is dependent on groundwater for its municipal and industrial water supply. The population of Mongolia is about 3 million people, with about one-half the population residing in or near Ulaanbaatar (World Population Review, 2016). Groundwater is drawn from a network of shallow...
Herpetological monitoring and assessment on the Trinity River, Trinity County, California—Final report
Melissa L. Snover, M. J. Adams
2016, Open-File Report 2016-1089
The primary goal of the Trinity River Restoration Program is to rehabilitate the fisheries on the dam-controlled Trinity River. However, maintaining and enhancing other wildlife populations through the restoration initiative is also a key objective. Foothill yellow-legged frogs (Rana boylii) and western pond turtles (Actinemys marmorata) have been identified...
