Dissolved Fe supply to the central Gulf of Alaska is inferred to be derived from Alaskan glacial dust that is not resolved by dust transport models
John Crusius
2021, JGR-Biogeosciences (126)
Re-examination of previously published dissolved iron time-series data from Ocean Station Papa in the central Gulf of Alaska (GoA) reveals 33-70% increases in the dissolved iron inventories occurring between September and February of successive years, implying a source of Fe to this region during autumn or early winter. Because I...
Sediment characteristics of northwestern Wisconsin’s Nemadji River, 1973–2016
Faith A. Fitzpatrick
2021, Open-File Report 2021-1003
In 2015–16, a comparison study of stream sediment collection techniques was done for a U.S. Geological Survey streamgage on the Nemadji River near South Superior, Wisconsin (U.S. Geological Survey station number 04024430) to provide an adjustment factor for comparing suspended-sediment rating curves for two historical periods 1973–86 and 2006–16. During...
Identifying chemicals and mixtures of potential biological concern detected in passive samplers from Great Lakes tributaries using high-throughput data and biological pathways
David A. Alvarez, Steven R. Corsi, Laura A. DeCicco, Daniel L. Villeneuve, Austin K. Baldwin
2021, Environmental Toxicology and Chemistry (40) 2165-2182
Waterborne contaminants were monitored in 69 tributaries of the Laurentian Great Lakes in 2010 and 2014 using semipermeable membrane devices (SPMDs) and polar organic chemical integrative samplers (POCIS). A risk-based screening approach was used to prioritize chemicals and chemical mixtures, identify sites at greatest risk for...
Wave-driven flood-forecasting on reef-lined coasts early warning system (WaveFoRCE)
William Skirving, Curt D. Storlazzi, Emily A Smail
2021, Newsletter, Environment Coastal & Offshore (ECO)
Increasing the resilience of coastal communities while decreasing the risk to them are key to the continued inhabitance and sustainability of these areas. Low-lying coral reef-lined islands are experiencing storm wave-driven flood events that currently strike with little to no warning. These events are occurring more frequently and with increasing...
Pilot-scale expanded assessment of inorganic and organic tapwater exposures and predicted effects in Puerto Rico, USA
Paul M. Bradley, Ingrid Y. Padilla, Kristin M. Romanok, Kelly Smalling, Michael J. Focazio, Sara E. Breitmeyer, Mary C. Cardon, Justin M. Conley, Nicola Evans, Carrie E. Givens, James L. Gray, L. Earl Gray, Phillip C. Hartig, Michelle L. Hladik, Christopher P. Higgins, Luke R. Iwanowicz, Rachael F. Lane, Keith A. Loftin, R. Blaine McCleskey, Carrie A. McDonough, Elizabeth Medlock-Kakaley, Shannon M. Meppelink, Christopher P. Weis, Vickie S. Wilson
2021, Environment International (788)
A pilot-scale expanded target assessment of mixtures of inorganic and organic contaminants in point-of-consumption drinking water (tapwater, TW) was conducted in Puerto Rico (PR) to continue to inform TW exposures and corresponding estimations of cumulative human-health risks across the US. In August 2018, a spatial synoptic pilot assessment of than...
Northern Madtom use of artificial reefs in the St. Clair–Detroit River System
Jennifer Johnson, Justin A. Chiotti, Andrew S Briggs, James C. Boase, Jan-Michael Hessenauer, Edward F. Roseman
2021, North American Journal of Fisheries Management (41) S42-S53
The St. Clair and Detroit rivers historically supported abundant fish populations. However, like many river systems, these rivers have been greatly altered through the creation of navigation channels and other anthropogenic disturbances, resulting in the loss of fish and wildlife habitat and declines in native fish populations. To ameliorate this...
Aeolian sediments in paleowetland deposits of the Las Vegas Formation
Harland L. Goldstein, Kathleen B. Springer, Jeffrey S. Pigati, Marith C. Reheis, Gary L. Skipp
2021, Quaternary Research (104) 1-13
The Las Vegas Formation (LVF) is a well-characterized sequence of groundwater discharge (GWD) deposits exposed in and around the Las Vegas Valley in southern Nevada. Nearly monolithologic bedrock surrounds the valley, which provides an excellent opportunity to test the hypothesis that GWD deposits include an aeolian component....
The importance of wilderness to wolf (Canis lupus) survival and cause-specific mortality over 50 years
Shannon Barber-Meyer, Tyler Wheeldon, L. David Mech
2021, Biological Conservation (258)
We assessed the relative importance of wilderness to gray wolf (Canis lupus) population dynamics over 50 years in a population that 1) was long extant (i.e., not reintroduced or recolonized), 2) was not subject to harvest in our study area until recently, and 3) used both wilderness and adjacent, mainly...
Oxygen isotopes in terrestrial gastropod shells track Quaternary climate change in the American Southwest
Jason A. Rech, Jeffrey S. Pigati, Kathleen B. Springer, Stephanie Bosch, Jeffrey C. Nekola, Yurena Yanes
2021, Quaternary Research (104) 43-53
Recent studies have shown the oxygen isotopic composition (δ18O) of modern terrestrial gastropod shells is determined largely by the δ18O of precipitation. This implies that fossil shells could be used to reconstruct the δ18O of paleo-precipitation as long as the isotopic system, including the hydrologic pathways of...
A U.S.-China EcoPartnership study of disturbed wetland vegetation in West Dongting Lake, China
Ting Lei, Beth Middleton
2021, Environmental Progress and Sustainable Energy (40)
West Dongting Lake in China is important for human livelihoods and habitat of migratory waterfowl and other wildlife. The waterway re-engineering and agriculture intensification have contributed to changes in hydrology, sediment, and vegetation on the floodplain. This paper describes an EcoPartnership program conducted by the U.S. Geological Survey, Wetland and...
Calcium concentrations in the lower Columbia River, USA, are generally sufficient to support invasive bivalve spread
Stephen M. Bollens, John A. Harrison, Marc G. Kramer, Gretchen Rollwagen-Bollens, Timothy D. Counihan, Salvador B. Robb-Chavez, Sean T. Nolan
2021, River Research and Applications (37) 889-894
Dissolved calcium concentration [Ca2+] is thought to be a major factor limiting the establishment and thus the spread of invasive bivalves such as zebra (Dreissena polymorpha) and quagga (Dreissena bugensis) mussels. We measured [Ca2+] in 168 water samples collected along ~100 river-km of the lower Columbia River, USA, between June...
Surface water with more natural temperatures promotes physiological and endocrine changes in landlocked Atlantic salmon smolts
Amy M. Regish, William R. Ardren, Nicholas R Staats, Henry Bouchard, Jonah L. Withers, Theodore R. Castro-Santos, Stephen D. McCormick
William R. Ardren, Larry Greenberg, editor(s)
2021, Canadian Journal of Fisheries and Aquatic Sciences (78) 775-786
Hatchery salmonid smolts are often reared using groundwater with elevated temperatures to maximize growth. Previous work has shown that rearing hatchery smolts in surface water with a more natural thermal regime resulted in increased return rates of adult landlocked Atlantic salmon (Salmo salar). We evaluated whether landlocked Atlantic salmon reared...
Expansion of intertidal mussel beds following disease-driven reduction of a keystone predator
Monica Mei Jeen Moritsch
2021, Marine Environmental Research (169)
Disease shapes community composition by removing species with strong interactions. To test whether the absence of keystone predation due to disease produced changes to the species composition of rocky intertidal communities, we leverage a natural experiment involving mass mortality of the keystone predator Pisaster ochraceus from Sea Star Wasting Syndrome....
Heat flux from a vapor-dominated hydrothermal field beneath Yellowstone Lake
Julia E. Favorito, Robert N. Harris, Robert A. Sohn, Shaul Hurwitz, Karen Luttrell
2021, Journal of Geophysical Research (126)
We report results from 149 heat flux measurements made over n ∼2-year interval at sites in and around a vapor-dominated geothermal field located at water depths of ∼100–120 m in Yellowstone Lake, Wyoming. Measurements of both in situ temperature and thermal conductivity as a function of depth were made with a...
Biogeography and ecology of Ostracoda in the U.S. northern Bering, Chukchi, and Beaufort Seas
Laura Gemery, Thomas M. Cronin, Lee W. Cooper, Harry J. Dowsett, Jacqueline M. Grebmeier
2021, PLoS ONE (16)
Ostracoda (bivalved Crustacea) comprise a significant part of the benthic meiofauna in the Pacific-Arctic region, including more than 50 species, many with identifiable ecological tolerances. These species hold potential as useful indicators of past and future ecosystem changes. In this study, we examined benthic ostracodes from...
Freshwater cyanotoxin mixtures in recurring cyanobacterial blooms in Voyageurs National Park
Victoria Christensen
2021, Thesis
Algal and cyanobacterial blooms can foul water systems, inhibit recreation, and produce cyanotoxins, which can be toxic to humans, domestic animals, and wildlife. Blooms that recur yearly present a special challenge, in that chronic effects of most cyanotoxins are unknown. To better understand cyanotoxin timing, possible environmental triggers, and inter-relations...
Exploring the factors controlling the error characteristics of the Surface Water and Ocean Topography mission discharge estimates
Renato Frasson, Michael T. Durand, Kevin Lanier, Colin Gleason, Konstantinos Andreadis, Mark Hageman, Robert W. Dudley, David M. Bjerklie, Hind Oubanas, Pierre-Andre Garambois, Pierre-Olivier Malaterre, Peirong Lin, Tamlin M. Pavelsky, Jerome Monnier, Craig Binkerhoff, Cedric H. David
2021, Water Resources Research (57)
The Surface Water and Ocean Topography (SWOT) satellite mission will measure river width, water surface elevation, and slope for rivers wider than 50-100 m. SWOT observations will enable estimation of river discharge by using simple flow laws such as the Manning-Strickler equation, complementing in-situ streamgages. Several discharge inversion algorithms...
Rapid observations of ocean dynamics and stratification along a steep island coast during Hurricane María
Olivia M. Cheriton, Curt D. Storlazzi, Kurt J. Rosenberger, Clark E. Sherman, Wilford Schmidt
2021, Science Advances (7)
Hurricanes are extreme storms that affect coastal communities, but the linkages between hurricane forcing and ocean dynamics remain poorly understood. Here, we present full water column observations at unprecedented resolution from the southwest Puerto Rico insular shelf and slope during Hurricane María, representing a rare set of high-frequency, subsurface, oceanographic...
Evaporation from Lake Mead and Lake Mohave, Nevada and Arizona, 2010–2019
Katherine J. Earp, Michael T. Moreo
2021, Open-File Report 2021-1022
Evaporation-rate estimates at Lake Mead and Lake Mohave, Nevada and Arizona, were based on eddy covariance and available energy measurements from March 2010 through April 2019 at Lake Mead and May 2013 through April 2019 at Lake Mohave. The continuous data needed to compute monthly evaporation were collected from floating-platform...
Great Lakes harmful algal blooms: Current knowledge gaps
Gregory L. Boyer, Mary Anne Evans, Timothy Maguire, Silvia Newell, Heather Raymond, Dale M. Robertson, Katie Stammler, Nicole Zacharda, Kenneth J. Gibbons
2021, Report
Freshwater Harmful Algal Blooms (HABs) pose serious risks throughout the world to drinking water, recreation, and ecosystem health. The Great Lakes, which contain nearly 20% of the world’s available surface freshwater, have been experiencing an increase in HABs since the 1990s. Knowledge gaps relating to HABs remain even after extensive...
Do contrasting patterns of migration movements and disease outbreaks between congeneric waterfowl species reflect differing immunity?
Shenlai Yin, Yanjie Xu, Nyambyar Batbayar, John Y. Takekawa, Yali Si, Diann Prosser, Scott H. Newman, Herbert H.T. Prins, Willem F. de Boer
2021, Geospatial Health (16) 223-230
Long-distance migrations influence the dynamics of hostpathogen interactions and understanding the role of migratory waterfowl in the spread of the highly pathogenic avian influenza viruses (HPAIV) is important. While wild geese have been associated with outbreak events, disease ecology of closely related species has not been studied to...
Gradient self-potential logging in the Rio Grande to identify gaining and losing reaches across the Mesilla Valley
Scott Ikard, Andrew Teeple, Delbert Humberson
2021, Water (13)
The Rio Grande/Río Bravo del Norte (hereinafter referred to as the “Rio Grande”) is the primary source of recharge to the Mesilla Basin/Conejos-Médanos aquifer system in the Mesilla Valley of New Mexico and Texas. The Mesilla Basin aquifer system is the U.S. part of the Mesilla Basin/Conejos-Médanos...
Seasonal activity and diets of bats at uranium mines and adjacent areas near the Grand Canyon
Ernest W. Valdez, Mollie K Hanttula, Jo Ellen Hinck
2021, Western North American Naturalist (81) 1-18
Little information exists on the habitat use and feeding ecology of insectivorous bats in arid ecosystems, especially at and near uranium mines in northern Arizona, within the Grand Canyon watershed. In 2015–2016, we conducted mist-netting, nightly acoustic monitoring (>1 year), and diet analyses of bats,...
Periphyton biomass and community compositions as indicators of water quality in the Lower Grand River hydrologic unit, Missouri and Iowa, 2011–18
Heather M. Krempa
2021, Scientific Investigations Report 2021-5012
Biological communities, including periphyton, are continuously affected by chemical, physical, and other biological factors, and the health of these communities can reflect the overall health of the aquatic system. A diverse community is more robust, and communities with lower richness and evenness often indicate a degraded community dominated by few...
Hydraulic conductivity can no longer be considered a fixed property when quantifying flow between groundwater and surface water
Donald O. Rosenberry, Peter Engesgaard, Christine E. Hatch
2021, Hydrological Processes (35)
No abstract available....
