Abundance of eelgrass (Zostera marina) at key Black Brant (Branta bernicla nigricans) wintering sites along the northern Pacific coast of Baja California, Mexico, 1998–2012
David H. Ward
2022, Open-File Report 2022-1078
Trends in the abundance and distribution of eelgrass (Zostera marina), the primary winter forage of black brant (Branta bernicla nigricans), was evaluated at three major wintering sites for black brant along the northern Pacific coast of Baja California, Mexico. This region of northwestern Mexico contains significant beds of eelgrass...
Bulk and intramolecular carbon isotopic compositions of hydrocarbon gases from laboratory pyrolysis of oil shale of the Green River Formation: Implications for isotope structures of kerogens
Xiaoqiang Li, Justin E. Birdwell, Juske Horita
2022, International Journal of Coal Geology (264)
Evaluation of intramolecular isotope distributions within organic compounds can provide important insights into gas formation processes and structural properties of gas-generating precursors, such as kerogen, bitumen, and oil, in natural reservoirs. Until recently, little has been known about the intramolecular isotope...
Backpack electrofishing does not contribute to external signs of gas bubble trauma in sculpins
Kenneth Tiffan, Nicole Joy Eller
2022, Aquaculture, Fish and Fisheries (2) 572-577
We exposed prickly sculpin Cottus asper and reticulate sculpin Cottus perplexus to electroshock and sham treatments in a controlled laboratory setting to determine if backpack electrofishing contributed to or exacerbated external signs of gas bubble trauma (GBT) in fish exposed to elevated total dissolved gas (TDG) levels. Fish were exposed to 115, 120 and...
Comparing line feature morphology with scale specific sinuosity distributions: A modified earth mover’s distance
Barry J. Kronenfeld, Barbara Buttenfield, Ethan J. Shavers, Larry Stanislawski
2022, Conference Paper
No abstract available....
Systematic mapping of the ocean-continent transform plate boundary of the Queen Charlotte fault system, southeastern Alaska and western British Columbia—A preliminary bathymetric terrain model
Brian D. Andrews, Daniel S. Brothers, Peter Dartnell, J. Vaughn Barrie, Peter J. Haeussler, Kristen M. Green, H. Gary Greene, Nathaniel C. Miller, Jared W. Kluesner, Uri S. ten Brink
2022, Open-File Report 2022-1085
In 2015, U.S. Geological Survey scientists in collaboration with scientists from other institutions began a study of the Queen Charlotte fault—the first systematic study of the fault in more than three decades. The primary goal of the study was to gain a better understanding of the earthquake, tsunami, and underwater-landslide...
Unified methods in collecting, preserving, and archiving coral bleaching and restoration specimens to increase sample utility and interdisciplinary collaboration
R. Vega Thurber, E R Schmeltzer, A G Grottoli, R. van Woesik, R. J. Toonen, M E Warner, K L Dobson, R H McLachlan, K L Barott, D J Barshis, J H Baumann, L Chapron, D J Combosch, A M S Correa, T M DeCarlo, M Hagedorn, Laetitia Hedouin, K D Hoadley, T Felis, C Ferrier-Pages, C D Kenkel, Ilsa B. Kuffner, J L Matthews, Miguel Medina, C P Meyer, C Oster, J T Price, H M Putnam, Y Sawall
2022, PeerJ (10)
Coral reefs are declining worldwide primarily because of bleaching and subsequent mortality resulting from thermal stress. Currently, extensive efforts to engage in more holistic research and restoration endeavors have considerably expanded the techniques applied to examine coral samples. Despite such advances, coral bleaching and restoration studies are often conducted...
Contemporary (1984–2020) fire history metrics for the conterminous United States and ecoregional differences by land ownership
Melanie K. Vanderhoof, Todd Hawbaker, Casey Teske, Joe Noble, Jim Smith
2022, International Journal of Wildland Fire (31) 1167-1183
Background: Remotely sensed burned area products are critical to support fire modelling, policy, and management but often require further processing before use.Aim: We calculated fire history metrics from the Landsat Burned Area Product (1984–2020) across the conterminous U.S. (CONUS) including (1) fire frequency, (2) time since last burn (TSLB), (3) year of...
Affinity of the benthic foraminifer Cassidulinoides parkeriana (Brady) for whale-falls: Evidence from off western Vancouver Island, British Columbia, Canada
Mary McGann, Charles K. Paull
2022, Micropaleontology (68) 569-586
A partial skeleton of a blue or fin whale, estimated to have been 16.5 m in length and thought to have been lying on the seafloor for less than 10 years, was observed at a depth of 1288 m off western Vancouver Island, British Columbia, Canada (48.68° N, 126.84° W)....
Geologic map of the Mount Evans quadrangle, Clear Creek and Park Counties, Colorado
Logan Powell, Asha A. Mahatma, Yvette Kuiper, Chester A. Ruleman
2022, Open-File Report OF-22-11
The Mount Evans 7.5’ quadrangle lies in Park and Clear Creek counties, Colorado, about 60 km west of Denver. The highest elevation in the quadrangle is 14,265 ft (4,348 m) at the top of Mount Evans. The lowest is at about 9,200 ft (2,804 m) on Guanella Pass Road at...
Conclusion to the special issue on Pollinators of the Great Plains
Clint R.V. Otto
2022, Prairie Naturalist 103-104
No abstract available....
Introduction to the special issue on pollinators of the Great Plains
Clint R.V. Otto
2022, Prairie Naturalist i-iii
No abstract available....
Coral reef restoration for risk reduction (CR4): A guide to project design and proposal development
Austen Stovall, Michael W. Beck, Curt Storlazzi, Juliette Hayes, Janan Reilly, Jennifer Koss, Doug Bausch
2022, Report
The Federal Emergency Management Agency (FEMA), U.S. Geological Survey (USGS), U.S. Army Corps of Engineers (USACE), National Oceanic and Atmospheric Administration (NOAA), and University of California Santa Cruz (UCSC) are working through the U.S. Coral Reef Task Force to provide guidance on the development of coral reef restoration proposals for...
Movements and habitat use of the Florida manatee (Trichechus manatus latirostris) in the northern Gulf of Mexico
Daniel Slone, Susan M. Butler, James P. Reid, Cathy Beck, Robert Bonde
2022, OCS Study BOEM 2022-075
No abstract available....
Behavioral responses of native and invasive fishes of the Upper Mississippi River to 100 hp boat motor acoustic stimulus
Kelsie A. Murchy, Brooke J Vetter, Marybeth K. Brey, Allen F. Mensinger
2022, Management of Biological Invasions (13) 750-768
Acoustic deterrents are currently being considered for deployment at strategic bottlenecks, such as lock and dams of major rivers, to deter upstream movement of invasive carp. Previous studies have demonstrated that bighead and silver carp (Hypophthalmichthys nobilis and H. molitrix, respectively) display negative phonotaxis to playbacks of broadband sound recordings produced from...
The Colorado River – The science-policy interface
John C. Schmidt, Lindsey Bruckerhoff, Jianghao Wang, Charles Yackulic
2022, Book chapter, Cornerstone at the confluence: Navigating the Colorado River Compact's next century
No abstract available....
Influence of test method variables on sensitivity of Neocloeon triangulifer to a reference toxicant in short-term, effluent style evaluations
David J. Soucek, Amy Dickinson, Teresa J. Norberg-King
2022, Environmental Toxicology and Chemistry (41) 2758-2768
Recent literature has demonstrated the sensitivity of mayflies to environmental contaminants. However, to date, there are no methods approved by the US Environmental Protection Agency for using sensitive insects like mayflies in whole-effluent toxicity or receiving water toxicity tests. The parthenogenetic mayfly Neocloeon triangulifer has been shown to be amenable to continuous...
Contaminant studies in Oregon
Charles J. Henny
Tashi A. Haig, Daniel D. Roby, Susan M. Haig, editor(s)
2022, Book chapter, As the condor soars
No abstract available....
Preface to the focus section on deformation models for the U.S. National Seismic Hazard Model
Fred Pollitz, Alexandra Elise Hatem, Kaj M. Johnson
2022, Seismological Research Letters (93) 2969-2972
No abstract available....
Assessing the efficacy of using a parentage-based tagging survival model to evaluate two sources of mortality for juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, Oregon
Dalton J. Hance, Tobias J. Kock, Russell W. Perry, Adam C. Pope
2022, Open-File Report 2022-1096
We conducted a study to assess the efficacy of using a parentage-based tagging survival model (PBT N-mixture model) to evaluate two sources of mortality for juvenile Chinook salmon (Oncorhynchus tshawytscha) in Lookout Point Reservoir, Oregon. The model was originally developed to evaluate reservoir mortality because of predation from piscivorous...
Invasive species control and management: The sea lamprey story
Michael P. Wilkie, Nicholas S. Johnson, Margaret F. Docker
2022, Book chapter, Fish physiology
Control of invasive species is a critical component of conservation biology given the catastrophic damage that they can cause to the ecosystems they invade. This is particularly evident with sea lamprey (Petromyzon marinus) in the Laurentian Great Lakes. Native to the Atlantic Ocean, the sea lamprey's ability to osmoregulate in...
Linking evolutionary potential to extinction risk: Applications and future directions
Brenna R. Forester, Erik A. Beever, Catherine Darst, Jennifer Szymanski, W. Chris Funk
2022, Frontiers in Ecology and the Environment (20) 507-515
Extinction-risk assessments play a major role in prioritizing conservation action at national and international levels. However, quantifying extinction risk is challenging, especially when including the full suite of adaptive responses to environmental change. In particular, evolutionary potential (EP), the capacity to evolve genetically based changes that increase fitness under changing...
New generation hyperspectral sensors DESIS and PRISMA provide improved agricultural crop classifications
Itiya Aneece, Prasad Thenkabail
2022, Photogrammetric Engineering & Remote Sensing (88) 715-729
Using new remote sensing technology to study agricultural crops will support advances in food and water security. The recently launched, new generation spaceborne hyperspectral sensors, German DLR Earth Sensing Imaging Spectrometer (DESIS) and Italian PRecursore IperSpettrale della Missione Applicativa (PRISMA), provide unprecedented data in hundreds of narrow spectral bands for...
November 22 Landsat update
Anya Hartpence
2022, Newsletter
No abstract available....
Warming-driven erosion and sediment transport in cold regions
Tinghu Zhang, Dongfeng Li, Amy E. East, Desmond E. Walling, Stuart N. Lane, Irina Overeem, Achim A. Beylich, Michele N Koppes, Xixi Lu
2022, Nature--Reviews of Earth and Environment (3) 832-851
Rapid atmospheric warming since the mid-twentieth century has increased temperature-dependent erosion and sediment-transport processes in cold environments, affecting food, energy and water security. In this Review, we summarize landscape changes in cold environments and provide a global inventory of increases in erosion and sediment yield driven...
USGS Telemetry Project
Marybeth K. Brey, Brent C. Knights, Jessica Stanton, Sean Bailey, Travis J. Harrison, Douglas Appel, Andrea K. Fritts, James J. Duncker, P. Ryan Jackson
2022, Report, 2021 Interim summary report: Invasive carp monitoring and response plan
No abstract available....
