Phytoplankton community and algal toxicity at a recurring bloom in Sullivan Bay, Kabetogama Lake, Minnesota, USA
Victoria Christensen, Ryan P. Maki, Erin A. Stelzer, Jack E. Norland, Eakalak Khan
2019, Scientific Reports (9)
Kabetogama Lake in Voyageurs National Park, Minnesota, USA suffers from recurring late summer algal blooms that often contain toxin-producing cyanobacteria. Previous research identified the toxin microcystin in blooms, but we wanted to better understand how the algal and cyanobacterial community changed throughout an open water season and how changes in...
Updates to the Madison Lake (Minnesota) CE–QUAL–W2 water-quality model for assessing algal community dynamics
Erik A. Smith, Richard L. Kiesling
2019, Scientific Investigations Report 2019-5124
A previously developed CE–QUAL–W2 model for Madison Lake, Minnesota, simulated the algal community dynamics, water quality, and fish habitat suitability of Madison Lake under recent (2014) meteorological conditions. Additionally, this previously developed model simulated the complex interplay between external nutrient loading, internal nutrient loading from sediment release of phosphorus, and...
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—2018
Daniel J. Cain, Janet K. Thompson, Francis Parchaso, Sarah Pearson, Robin Stewart, Matthew A. Turner, Kelly H. Shrader, Emily L. Zierdt Smith, Samuel N. Luoma
2019, Open-File Report 2019-1084
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, Calif. This report includes...
Evaluation of potential sources of sauger Sander canadensis for reintroduction into Lake Erie
Travis Hartman, Jeff Tyson, Kevin Page, Wendylee Stott
2019, Journal of Great Lakes Research (45) 1299-1309
Sauger (Sander canadensis) supported recreational and commercial fisheries in Lake Erie until the fishery collapsed in the early-1950s, with extirpation of sauger occurring soon after. Previous attempts to rebuild populations via stocking programs were unsuccessful, and the reasons for lack of success are unclear. The Ohio Department of Natural Resources-Division...
Submergence responses of cool-season annual plants and potential for fish habitat
G Coppola, Leandro E. Miranda, ME Colvin, HR Hatcher, Marcus A. Lashley
2019, North American Journal of Fisheries Management (39) 1269-1276
Unnatural water regimes of flood control reservoirs limit vegetation establishment in littoral zones and produce mudflats with low structural complexity insufficient for many juvenile fishes. One strategy to enhance habitat on mudflats is to sow cool-season plants to provide submerged structure when inundated. However, how long the structure of these...
Streambed flux measurement informed by distributed temperature sensing leads to a significantly different characterization of groundwater discharge
Troy E. Gilmore, Mari-Vaughn V. Johnson, J Korus, Aaron R. Mittelstet, Martin A. Briggs, V. Zlotnik, S. Corcoran
2019, Water (11)
Groundwater discharge though streambeds is often focused toward discrete zones, indicating that preliminary reconnaissance may be useful for capturing the full spectrum of groundwater discharge rates using point-scale quantitative methods. However, many direct-contact reconnaissance techniques can be time consuming, and remote sensing (e.g. thermal infrared) typically does not penetrate the...
Changes in long-term water quality of Baltimore streams are associated with both gray and green infrastructure
Alexander J. Reisinger, Ellen L Woytowitz, Emily H. Majcher, Emma J. Rosi, Kenneth T. Belt, Jonathan M. Duncan, Sujay S. Kaushal, Peter M. Groffman
2019, Limnology and Oceanography journal (64) S60-S76
The steadily rising global urban population has placed substantial strain on urban water quality, and this strain is projected to increase for the foreseeable future. Considerable attention has been given to the hydrological and physico-chemical effects of urbanization on stream ecosystems. However, due to the relative infancy of the field...
Mercury source changes and food web shifts alter contamination signatures of predatory fish from Lake Michigan
Ryan F. Lepak, Joel C. Hoffman, Sarah E. Janssen, David P. Krabbenhoft, Jacob M. Ogorek, John F. DeWild, Michael T. Tate, Christopher L. Babiarz, Runsheng Yin, Elizabeth W Murphy, Daniel R Engstrom, James P. Hurley
2019, Proceedings of the National Academy of Sciences (116) 23600-23608
To understand the impact reduced mercury (Hg) loading and invasive species have had on methylmercury bioaccumulation in predator fish of Lake Michigan, we reconstructed bioaccumulation trends from a fish archive (1978 to 2012). By measuring fish Hg stable isotope ratios, we related temporal changes in Hg concentrations to varying Hg...
Copula theory as a generalized framework for flow-duration curve-based streamflow estimates in ungaged and partially gaged catchments
Scott C. Worland, Scott Steinschneider, William H. Farmer, William H. Asquith, Rodney Knight
2019, Water Resources Research (55) 9378-9397
Flow‐duration curve (FDC) based streamflow estimation methods involve estimating an FDC at an ungaged or partially gaged location and using the time series of nonexceedance probabilities estimated from donor streamgage sites to generate estimates of streamflow. We develop a mathematical framework to illustrate the connection between copulas and prior FDC‐based...
Multipurpose oxbows as a nitrate export reduction practice in the agricultural Midwest
Keith E. Schilling, Karen Wilke, Clay Pierce, Keegan Kult, Aleshia Kenny
2019, Agricultural & Environmental Letters (4)
Core IdeasOxbows reduce nitrate export from agricultural fields to adjacent rivers and streams.Oxbows are important habitat for wildlife, including the endangered Topeka shiner.Oxbows have largely disappeared from midwestern landscapes modified for agriculture.Restoring multipurpose oxbows provides multiple benefits in the agricultural Midwest.Nutrient export from the agricultural...
2017 Monitoring and tracking wet nitrogen deposition at Rocky Mountain National Park
Kristi Morris, M. Alisa Mast, Gregory A. Wetherbee, Jill S. Baron, Jim Cheatham, Jim Bromberg, Lisa Devore, James Hou, Kristi Gebhart, Mike Bell, David Gay, Michael Olson, Timothy Weinmann, Daniel Bowker
2019, Natural Resource Report 2019/1905
The Colorado Department of Public Health and Environment (CDPHE), the National Park Service (NPS), and the U.S. Environmental Protection Agency (EPA) issued the Nitrogen Deposition Reduction Plan (NDRP) in 2007 to address the effects and trends of nitrogen deposition at Rocky Mountain National Park (RMNP). The agencies chose a glidepath...
Chemical composition of formation water in shale and tight reservoirs: A basin-scale perspective
Yousif Kharaka, Kathleen Gans, Elisabeth Rowan, James Thordsen, Christopher H. Conaway, Madalyn S. Blondes, Mark A. Engle
2019, Book chapter, Shale: Subsurface Science and Engineering
No abstract available....
2D micromodel study of clogging behavior of fine-grained particles associated with gas hydrate production in NGHP-02 gas hydrate reservoir sediments
S.C. Cao, Junbong Jang, William F. Waite, Timothy Collett, Jenni Junger, P. Kumar
2019, Journal of Marine and Petroleum Geology (108) 714-730
Fine-grained particles (fines) commonly coexist with coarse-grained sediments that host gas hydrate. These fines can be mobilized by liquid and gas flow during gas hydrate production. Once mobilized, fines can clog pore throats and reduce reservoir permeability. Even where particle sizes are smaller than pore-throat sizes, clogs can form due...
Reactive transport modeling to understand attenuation of arsenic concentrations in anoxic groundwater during Fe(II) oxidation by nitrate
Douglas B. Kent, Richard L. Smith, James Jamieson, J.K. Bohlke, Deborah A. Repert, Henning Prommer
2019, Book chapter, Environmental Arsenic in a Changing World
A previously published field-experimental investigation showed that injection of nitrate in anoxic groundwater that contained aqueous and sediment-bound Fe(II) diminished concentrations of As(V) and As(III) to below drinking-water limits. In the current study, reactive transport modeling confirmed that the observed attenuation was consistent with oxidation of Fe(II) by nitrate, leading...
Toward a theory of connectivity among depressional wetlands of the great plains
Gene Albanese, David A. Haukos
2019, Book chapter, Disturbance ecology and biological diversity: Context, nature and scale
Functions of inland, freshwater depressional wetlands of the Great Plains are driven by natural disturbance in the form of fluctuating water levels or shifts between wet and dry ecological states. The geographically isolated prairie potholes and playas form broad-scale systems or networks that support biodiversity and provide ecological goods and...
A conceptual framework for the identification and characterization of lacustrine spawning habitats for native lake charr Salvelinus namaycush
Stephen Riley, J. E. Marsden, M. S. Ridgway, Christopher Konrad, Steve A. Farha, Thomas R. Binder, Trevor A. Middel, Peter C. Esselman, Charles C. Krueger
2019, Environmental Biology of Fishes (102) 1533-1557
Lake charr Salvelinus namaycush are endemic to the formerly glaciated regions of North America and spawn primarily in lakes, unlike most other Salmoninae. Spawning habitats for lake charr are thought to be characterized by relatively large substrate particle sizes which provide sufficient interstitial spaces for egg incubation, but little is...
Summary of hydrologic testing, wellbore-flow data, and expanded water-level and water-quality data, 2011–15, Fort Irwin National Training Center, San Bernardino County, California
Joseph M. Nawikas, Jill N. Densmore, David R. O'Leary, David C. Buesch, John A. Izbicki
2019, Scientific Investigations Report 2019-5091
In view of the U.S. Army’s historical reliance and plans to increase demands on groundwater to supply its operations at Fort Irwin National Training Center (NTC), California, coupled with the continuing water-level declines in some developed groundwater basins as a result of pumping, the U.S. Geological Survey (USGS), in cooperation...
Riverscape correlates for distribution of threatened spotfin chub Erimonax monachus in the Tennessee River Basin, USA
Joshuah S. Perkin, W. Keith Gibbs, Josey Lee Ridgway, S. Bradford Cook
2019, Endangered Species Research (40) 91-105
Globally, aquatic biodiversity is imperiled at an increasing rate, especially in diversity hotspots such as the southeastern USA. The spotfin chub Erimonax monachus is a federally threatened minnow with a disjunct distribution resulting from numerous impoundments on the Tennessee River and its tributaries in the heart of the southeastern USA. Recovery actions...
Age and growth of Freshwater Drum and Gizzard Shad occupying two reservoir-river complexes with different groundwater contributions
J Dattilo, D. E. Shoup, Shannon K. Brewer
2019, North American Journal of Fisheries Management (39) 1132-1142
Restoring groundwater flow is a management option that improves water temperature regimes and benefits fishes. Although this strategy applies more readily to river systems, the thermal character of reservoirs is heavily influenced by inflowing rivers. We examined differences in age, structure, and growth of both Freshwater...
Evolutionary dynamics of Ceratonova species (Cnidaria: Myxozoa) reveal different host adaptation strategies
Rachel B. Breyta, Stephen D Atkinson, Jerri L Bartholomew
2019, Infection, Genetics and Evolution (78)
The myxozoan parasite Ceratonova shasta is an important pathogen that infects multiple species of Pacific salmonids. Ongoing genetic surveillance has revealed stable host-parasite relationships throughout the parasite's endemic range. We applied Bayesian phylogenetics to test specific hypotheses about the evolution of these host-parasite relationships within the well-studied Klamath River watershed...
Study design and methods for a wetland condition assessment on U.S. Fish and Wildlife Service fee-title lands in the Prairie Pothole Region of North Dakota, South Dakota, and Montana, USA
Brian Tangen, Sheel Bansal, Rachel R. Fern, Edward S. DeKeyser, Christina L. M. Hargiss, David M. Mushet, Cami S. Dixon
2019, Open-File Report 2019-1118
The U.S. Fish and Wildlife Service (FWS) manages wetlands and grasslands for wildlife habitat throughout the central North American Prairie Pothole Region (PPR). PPR wetlands, or potholes, are widely recognized as critical habitats for North American migratory waterfowl, waterbirds, and other wildlife. Potholes also provide other ecosystem services such as...
Precision mapping of snail habitat provides a powerful indicator of human schistosomiasis transmission
Chelsea L. Wood, Susanne H. Sokolow, Isabel J. Jones, Andrew J Chamberlin, Kevin D. Lafferty, Armand M. Kuris, Merlijn M. T. Jocque, Skylar R. Hopkins, Grant Adams, Julia C Buck, Andrea J Lund, Ana E Garcia-Vedrenne, Evan Fiorenza, Jason R. Rohr, Fiona Allan, Bonnie Webster, Muriel Rabone, Joanne P Webster, Lydie Bandagny, Raphael Ndione, Simon Senghor, Anne-Marie Schacht, Nicolas Jouanard, Gilles Riveau, Giulio A. De Leo
2019, PNAS (449) 23182-23191
Recently, the World Health Organization recognized that efforts to interrupt schistosomiasis transmission through mass drug administration have been ineffective in some regions; one of their new recommended strategies for global schistosomiasis control emphasizes targeting the freshwater snails that transmit schistosome parasites. We sought to identify robust indicators that would enable...
Status of three-dimensional geological mapping and modeling activities in the U.S. Geological Survey
Donald S. Sweetkind, Russell Graymer, D.K. Higley, Oliver S. Boyd
2019, Report, AER/AGS Special Report 112
The U.S. Geological Survey (USGS), created in 1879, is the national geological survey for the United States and the sole science agency within its cabinet-level bureau, the Department of the Interior. The USGS has a broad mission, including: serving the Nation by providing reliable scientific information to describe and understand the Earth; minimize...
Quantitative guidance for efficient vertical flow measurements at the sediment-water interface using temperature-depth profiles
D. Irvine, B. Kurylyk, Martin A. Briggs
2019, Hydrological Processes (34) 649-661
Upward discharge to surface water bodies can be quantified using analytical models based on temperature-depth (T-z) profiles. The use of sediment T-z profiles is attractive as discharge estimates can be obtained using point-in-time data that are collected inexpensively and rapidly. Previous studies have identified that T-z methods can only be...
Sources, fate, and flux of geothermal solutes in the Yellowstone and Gardner Rivers, Yellowstone National Park, WY
R. Blaine McCleskey, David A. Roth, D. Mahony, D. Kirk Nordstrom, Stacy Kinsey
2019, Applied Geochemistry (111) 1-14
The total discharge and thermal output from the numerous hydrothermal features in Yellowstone National Park (YNP) can be estimated from the chloride (Cl) flux in the Madison, Yellowstone, Falls, and Snake Rivers. Monitoring the Cl flux in these four major rivers provides a holistic view of the hydrothermal output from...
