Soil microbial community profiles and functional diversity in limestone cedar glades
Jennifer M. Cartwright, E. Kudjo Dzantor, Bahram Momen
2016, Catena (147) 216-224
Rock outcrop ecosystems, such as limestone cedar glades (LCGs), are known for their rare and endemic plant species adapted to high levels of abiotic stress. Soils in LCGs are thin (< 25 cm), soil-moisture conditions fluctuate seasonally between xeric and saturated, and summer soil temperatures commonly exceed 48 °C. The...
Water resources of Livingston Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2016, Fact Sheet 2016-3048
Information concerning the availability, use, and quality of water in Livingston Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability,...
The effect of submerged aquatic vegetation expansion on a declining turbidity trend in the Sacramento-San Joaquin River Delta
E.L. Hestir, David H. Schoellhamer, Jonathan Greenberg, Tara L. Morgan-King, S.L. Ustin
2016, Estuaries and Coasts (39) 1100-1112
Submerged aquatic vegetation (SAV) has well-documented effects on water clarity. SAV beds can slow water movement and reduce bed shear stress, promoting sedimentation and reducing suspension. However, estuaries have multiple controls on turbidity that make it difficult to determine the effect of SAV on water clarity. In this study, we...
Water resources of St. Helena Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2016, Fact Sheet 2016-3047
Information concerning the availability, use, and quality of water in St. Helena Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the...
Comparison of benthos and plankton for selected areas of concern and non-areas of concern in western Lake Michigan Rivers and Harbors in 2012
Barbara C. Scudder Eikenberry, Amanda H. Bell, Hayley T. Olds, Daniel J. Burns
2016, Scientific Investigations Report 2016-5090
Recent data are lacking to assess whether impairments still exist at four of Wisconsin’s largest Lake Michigan harbors that were designated as Areas of Concern (AOCs) in the late 1980s due to sediment contamination and multiple Beneficial Use Impairments (BUIs), such as those affecting benthos (macroinvertebrates) and plankton (zooplankton and...
Identifying key climate and environmental factors affecting rates of post-fire big sagebrush (Artemisia tridentata) recovery in the northern Columbia Basin, USA
Douglas J. Shinneman, Susan K. McIlroy
2016, International Journal of Wildland Fire (25) 933-945
Sagebrush steppe of North America is considered highly imperilled, in part owing to increased fire frequency. Sagebrush ecosystems support numerous species, and it is important to understand those factors that affect rates of post-fire sagebrush recovery. We explored recovery of Wyoming big sagebrush (Artemisia tridentata ssp.wyomingensis) and basin big sagebrush (A....
Environmental toxicology without chemistry and publications without discourse: Linked impediments to better science
Christopher A. Mebane, Joseph S. Meyer
2016, Environmental Toxicology and Chemistry (35) 1335-1336
No abstract available....
Water resources of Tangipahoa Parish, Louisiana
Vincent E. White, Lawrence B. Prakken
2016, Fact Sheet 2016-3049
Information concerning the availability, use, and quality of water in Tangipahoa Parish, Louisiana, is critical for proper water-resource management. The purpose of this fact sheet is to present information that can be used by water managers, parish residents, and others for stewardship of this vital resource. Information on the availability,...
Evaluation of National Atmospheric Deposition Program measurements for colocated sites CO89 and CO98 at Rocky Mountain National Park, water years 2010–14
Gregory A. Wetherbee
2016, Scientific Investigations Report 2016-5051
Atmospheric wet-deposition monitoring in Rocky Mountain National Park included precipitation depth and aqueous chemical measurements at colocated National Atmospheric Deposition Program/National Trends Network (NADP/NTN) sites CO89 and CO98 (Loch Vale) during water years 2010–14 (study period). The colocated sites were separated by approximately 6.5 meters horizontally and 0.5 meter in...
Variability of bed drag on cohesive beds under wave action
Ilgar Safak
2016, Water (8)
Drag force at the bed acting on water flow is a major control on water circulation and sediment transport. Bed drag has been thoroughly studied in sandy waters, but less so in muddy coastal waters. The variation of bed drag on a muddy shelf is investigated here using field observations...
Lake transparency: a window into decadal variations in dissolved organic carbon concentrations in Lakes of Acadia National Park, Maine
Collin S. Roesler, Charles W. Culbertson
2016, Book chapter, Aquatic nutrient biogeochemistry and microbial ecology: A dual perspective
A forty year time series of Secchi depth observations from approximately 25 lakes in Acadia National Park, Maine, USA, evidences large variations in transparency between lakes but relatively little seasonal cycle within lakes. However, there are coherent patterns over the time series, suggesting large scale processes are responsible. It has...
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...
Evaluation of a floating fish guidance structure at a hydrodynamically complex river junction in the Sacramento-San Joaquin River Delta, California, USA
Jason G. Romine, Russell W. Perry, Adam C. Pope, Paul Stumpner, Theresa L. Liedtke, Kevin K. Kumagai, Ryan L. Reeves
2016, Marine and Freshwater Research (68) 878-888
Survival of out-migrating juvenile Chinook salmon (Oncorhynchus tshawytscha) in the Sacramento–San Joaquin River delta, California, USA, varies by migration route. Survival of salmonids that enter the interior and southern Delta can be as low as half that of salmonids that remain in the main-stem Sacramento River. Reducing entrainment into the...
Characterization of mean transit time at large springs in the Upper Colorado River Basin, USA: A tool for assessing groundwater discharge vulnerability
John E. Solder, Bernard J. Stolp, Victor M. Heilweil, David D. Susong
2016, Hydrogeology Journal (24) 2017-2033
Environmental tracers (noble gases, tritium, industrial gases, stable isotopes, and radio-carbon) and hydrogeology were interpreted to determine groundwater transit-time distribution and calculate mean transit time (MTT) with lumped parameter modeling at 19 large springs distributed throughout the Upper Colorado River Basin (UCRB), USA. The predictive value of the MTT to...
Water-quality trends and constituent-transport analysis for selected sampling sites in the Milltown Reservoir/Clark Fork River Superfund Site in the upper Clark Fork Basin, Montana, water years 1996–2015
Steven K. Sando, Aldo V. Vecchia
2016, Scientific Investigations Report 2016-5100
During the extended history of mining in the upper Clark Fork Basin in Montana, large amounts of waste materials enriched with metallic contaminants (cadmium, copper, lead, and zinc) and the metalloid trace element arsenic were generated from mining operations near Butte and milling and smelting operations near Anaconda. Extensive deposition...
An international borderland of concern: Conservation of biodiversity in the Lower Rio Grande Valley
David M. Leslie Jr.
2016, Scientific Investigations Report 2016-5078
The Lower Rio Grande Valley (LRGV) of southern Texas is located on the United States-Mexico borderland and represents a 240-kilometer (150-mile) linear stretch that ends at the Gulf of Mexico. The LRGV represents a unique transition between temperate and tropical conditions and, as such, sustains an exceptionally high diversity of...
Internal loading of phosphorus in western Lake Erie
Gerald Matisoff, Eliza M. Kaltenberg, Rebecca L. Steely, Stephanie K. Hummel, Jinyu Seo, Kenneth J. Gibbons, Thomas B. Bridgeman, Youngwoo Seo, Mohsen Behbahani, William F. James, Laura Johnson, Phuong Doan, Maria Dittrich, Mary Anne Evans, Justin D. Chaffin
2016, Journal of Great Lakes Research (42) 775-788
This study applied eight techniques to obtain estimates of the diffusive flux of phosphorus (P) from bottom sediments throughout the western basin of Lake Erie. The flux was quantified from both aerobic and anaerobic incubations of whole cores; by monitoring the water encapsulated in bottom chambers; from pore water concentration...
Island characteristics within wetlands influence waterbird nest success and abundance
C. Alex Hartman, Joshua T. Ackerman, Mark P. Herzog
2016, Journal of Wildlife Management (80) 1177-1188
Coastal waterbird populations are threatened by habitat loss and degradation from urban and agricultural development and forecasted sea level rise associated with climate change. Remaining wetlands often must be managed to ensure that waterbird habitat needs, and other ecosystem functions, are met. For many waterbirds, the availability of island nesting...
Mining-related sediment and soil contamination in a large Superfund site: Characterization, habitat implications, and remediation
Kyle E. Juracek, K. D. Drake
2016, Environmental Management (58) 721-740
Historical mining activity (1850–1970) in the now inactive Tri-State Mining District provided an ongoing source of lead and zinc to the environment including the US Environmental Protection Agency Superfund site located in Cherokee County, southeast Kansas, USA. The resultant contamination adversely affected biota and caused human health problems and risks....
Time-varying land subsidence detected by radar altimetry: California, Taiwan and north China
Cheinway Hwang, Yuande Yang, Ricky Kao, Jiancheng Han, C.K. Shum, Devin L. Galloway, Michelle Sneed, Wei-Chia Hung, Yung-Sheng Cheng, Fei Li
2016, Scientific Reports (6) 1-12
Contemporary applications of radar altimetry include sea-level rise, ocean circulation, marine gravity, and ice sheet elevation change. Unlike InSAR and GNSS, which are widely used to map surface deformation, altimetry is neither reliant on highly temporally-correlated ground features nor as limited by the available spatial coverage, and can provide long-term...
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...
Effects of aquifer storage and recovery activities on water quality in the Little Arkansas River and Equus Beds Aquifer, south-central Kansas, 2011–14
Mandy L. Stone, Jessica D. Garrett, Barry C. Poulton, Andrew C. Ziegler
2016, Scientific Investigations Report 2016-5042
The Equus Beds aquifer in south-central Kansas is aprimary water source for the city of Wichita. The Equus Beds aquifer storage and recovery (ASR) project was developed to help the city of Wichita meet increasing current (2016) and future water demands. The Equus Beds ASR project pumps water out of...
Benefits of prescribed flows for salmon smolt survival enhancement vary longitudinally in a highly managed river system
Ian Courter, Thomas Garrison, Tobias J. Kock, Russell W. Perry, David Child, Joel Hubble
2016, River Research and Applications (32) 1999-2008
The influence of streamflow on survival of emigrating juvenile Pacific salmonids Oncorhynchus spp. (smolts) is a major concern for water managers throughout the northeast Pacific Rim. However, few studies have quantified flow effects on smolt survival, and available information does not indicate a consistent flow–survival relationship within the typical range of flows...
Spatial and temporal assessment of back-barrier erosion on Cumberland Island National Seashore, Georgia, 2011–2013
Daniel L. Calhoun, Jeffrey W. Riley
2016, Scientific Investigations Report 2016-5071
Much research has been conducted to better understand erosion and accretion processes for the seaward zones of coastal barrier islands; however, at Cumberland Island National Seashore, Georgia, the greater management concern is the effect that erosion is having on the resources of the island’s western shoreline, or the back barrier....
