Effects of microcystin-LR on juvenile Lost River suckers (Deltistes luxatus) during feeding trials, Upper Klamath Lake, Oregon, 2014−16
Barbara A. Martin, Kathy R. Echols, Diane G. Elliott, Kevin Feltz, Carla M. Conway, Summer M. Burdick
2019, Open-File Report 2019-1079
Executive SummaryHistorically, populations of Lost River suckers (Deltistes luxatus) of the Upper Klamath Basin were so numerous that they were commercially harvested; however, declining numbers throughout the 20th century led to the listing of the species under the United States Endangered Species Act in 1988. Habitat destruction, poor...
Using UAS capabilities to help identify hummock-hollow formation and fragmentation in critical marsh habitat (Spartina patens) for mottled ducks in southeast Texas
William R. Jones, Stephen B. Hartley, Camille L. Stagg, Michael J. Osland
2019, Open-File Report 2019-1045
For many years, marshes in the coastal areas from Texas to Louisiana have served as critical habitat for Anas fulvigula, the mottled duck. Mottled ducks are a priority species in the Texas/Louisiana Gulf Coast area and have been affected by critical habitat reduction. In recent years, mottled duck habitats have...
Monitoring breeding and survival of ring-necked pheasant (Phasianus colchicus) in the Sacramento Valley, Sacramento-San Joaquin River Delta, and Klamath Basin, northern California—Five-year summary, 2013–17
Ian A. Dwight, Peter S. Coates, Jessica H. Vogt, Joseph L. Atkinson, Joseph P. Fleskes, Daniel P. Connelly, Matt G. Meshriy, Scott C. Gardner, Simone T. Stoute, Maurice E. Pitesky
2019, Open-File Report 2019-1062
The U.S. Geological Survey Western Ecological Research Center, Pheasants Forever, Mandeville Island Duck Club, and the California Department of Fish and Wildlife collaborated in a reconnaissance study to monitor populations of ring-necked pheasant (Phasianus colchicus) using radio-telemetry in the Sacramento Valley, Sacramento-San Joaquin River Delta, and Klamath Basin of...
Geochronologic, isotopic, and geochemical data from igneous rocks in the Lane Mountain area, San Bernardino County, California
Paul Stone, Howard J. Brown, M. Robinson Cecil, Robert J. Fleck, Jorge A. Vazquez, John A. Fitzpatrick, Jose J. Rosario
2019, Open-File Report 2019-1070
We present new geochronologic, isotopic, and geochemical data for selected igneous rocks in the Lane Mountain area, California. We determined SHRIMP-RG U-Pb zircon ages for the following units: (1) Larrea complex (~253 Ma and ~149–146 Ma); (2) Daisy granodiorite (~151 Ma); (3) Jack Spring quartz monzonite (~85–82 Ma); (4) unnamed...
Monitoring storm tide, flooding, and precipitation from Hurricane Maria in Puerto Rico and the U.S. Virgin Islands, September 2017
Michael J. Byrne Sr.
2019, Open-File Report 2019-1065
Hurricane Maria made landfall south of Yabucoa Harbor, Puerto Rico, as a category 4 hurricane with maximum sustained winds of 155 miles per hour on September 20, 2017. The hurricane devastated much of the U.S. Virgin Islands and Puerto Rico. The U.S. Geological Survey (USGS), in cooperation with Federal Emergency...
Benthic community dynamics in Coyote Creek and Artesian Slough, southern San Francisco Bay, California, May 2016 to March 2018
Kelly H. Shrader, Sarah A. Pearson, Francis Parchaso, Janet K. Thompson
2019, Open-File Report 2019-1057
The primary objective of this study is to quantify current (2016–18) benthic-community structure and function in the southern San Francisco Bay, and to compare those communities to the communities in the neighboring sloughs. The study area is inclusive of the area south of the Dumbarton Bridge including Coyote Creek and...
Triangle area water supply monitoring project, North Carolina-Summary of monitoring activities, quality assurance, and data, October 2015–September 2017
Cassandra A. Pfeifle, Jessica L. Cain, Ryan B. Rasmussen
2019, Open-File Report 2019-1077
Surface-water supplies are important sources of drinking water for residents in the Triangle area of North Carolina, which is located within the upper Cape Fear and Neuse River Basins. Since 1988, the U.S. Geological Survey and a consortium of local governments have tracked water-quality conditions and trends in several of...
Offshore shallow structure and sediment distribution, Point Sur to Point Arguello, central California
Samuel Y. Johnson, Stephen R. Hartwell, Janet T. Watt, Jeffrey W. Beeson, Peter Dartnell
2019, Open-File Report 2018-1158
This publication consists of three map sheets that display shallow geologic structure, along with sediment distribution and thickness, for an about 225-km-long offshore section of the central California coast between Point Sur and Point Arguello. Each map sheet includes three maps, at scales of either 1:150,000 or 1:200,000, as well...
Water-quality, bed-sediment, and biological data (October 2016 through September 2017) and statistical summaries of data for streams in the Clark Fork Basin, Montana
Tom Cleasby, Michelle I. Hornberger, Terry L. Heinert, Matthew A. Turner
2019, Open-File Report 2019-1060
Water, bed sediment, and biota were sampled in selected streams from Butte to near Missoula, Montana, as part of a monitoring program in the Clark Fork Basin of western Montana. The sampling program was led by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, to characterize...
Examination of movements and survival of Pahranagat roundtail chub (Gila robusta jordani) in the Pahranagat River and adjacent waters, Nevada, 2014–18
Barbara A. Martin, Brian S. Hayes, Alta C. Harris
2019, Open-File Report 2019-1075
Executive SummaryThe Pahranagat roundtail chub (Gila robusta jordani; hereinafter “chub”) was federally listed as endangered in 1970 (U.S. Fish and Wildlife Service, 1970). In the decades following the listing, the chub has declined to extremely low numbers (Tuttle and others, 1990; Guadalupe, 2014). Loss of available habitat appears to...
The Teton fault
M. S. Zellman, Christopher DuRoss, Glenn R. Thackray
2019, Open-File Report 2019-1
No abstract available....
Optimization of salt marsh management at the Chincoteague National Wildlife Refuge, Virginia, through use of structured decision making
Hilary A. Neckles, James E. Lyons, Jessica L. Nagel, Susan C. Adamowicz, Toni Mikula, Kevin S. Holcomb
2019, Open-File Report 2019-1056
Structured decision making is a systematic, transparent process for improving the quality of complex decisions by identifying measurable management objectives and feasible management actions; predicting the potential consequences of management actions relative to the stated objectives; and selecting a course of action that maximizes the total benefit achieved and balances...
Effects of experimental removal of Barred Owls on population Demography of Northern Spotted Owls in Washington and Oregon—2018 Progress Report
J. David Wiens, Katie M. Dugger, Damon B. Lesmeister, Krista E. Dilione, David C. Simon
2019, Open-File Report 2019-1074
Populations of Northern Spotted Owls (Strix occidentalis caurina; herineafter referred to as Spotted Owl) have declined throughout the subspecies’ geographic range. Evidence indicates that competition with invading Barred Owls (S. varia) has contributed significantly to those declines. A pilot study in California showed that removal of Barred Owls coupled with...
Petrologic and mineral physics database for use with the U.S. Geological Survey National Crustal Model
Theron A. Sowers, Oliver S. Boyd
2019, Open-File Report 2019-1035
We present a petrologic and mineral physics database as part of the U.S. Geological Survey National Crustal Model (NCM). Each of 209 geologic units, 134 of which are currently part of the geologic framework within the NCM, was assigned a mineralogical composition according to generalized classifications with some refinement for...
Hydraulic, geochemical, and thermal monitoring of an aquifer system in the vicinity of Mammoth Lakes, Mono County, California, 2015–17
James F. Howle, William C. Evans, Devin L. Galloway, Paul A. Hsieh, Shaul Hurwitz, Gregory A. Smith, Joseph Nawikas
2019, Open-File Report 2019-1063
Since 2014, the U.S. Geological Survey has been working in cooperation with the Bureau of Land Management, Mono County, Ormat Technologies, Inc., and the Mammoth Community Water District to design and implement a groundwater-monitoring program for the proposed Casa Diablo IV Geothermal Power Project in Long Valley Caldera, California, to...
The major coral reefs of Maui Nui, Hawai‘i—distribution, physical characteristics, oceanographic controls, and environmental threats
Michael E. Field, Curt D. Storlazzi, Ann E. Gibbs, Nicole L. D'Antonio, Susan A. Cochran
2019, Open-File Report 2019-1019
Coral reefs are widely recognized as critical to Hawaiʻi’s economy, food resources, and protection from damaging storm waves. Yet overfishing, land-based pollution, and climate change are threatening the health and sustainability of those reefs, and accordingly, both the Federal and State governments have called for protection and effective management. In...
Landscape change associated with the upper Scenic Drive landslide, La Honda, California, January 10–June 28, 2017
Alexandra J. Pickering, Carol S. Prentice, Stephen B. DeLong
2019, Open-File Report 2019-1024
La Honda, California, is a small town in unincorporated San Mateo County, located on the west edge of the San Francisco Peninsula in the Santa Cruz Mountains, between San Francisco and San Jose. The Scenic Drive area of La Honda has experienced several past episodes of landslide motion, which were...
Supply chain infrastructure restoration calculator software tool—Developer guide and user manual
Akhilesh Ojha, Bhanu Kanwar, Suzanna K. Long, Thomas G. Shoberg, Steven Corns
2019, Open-File Report 2019-1061
This report describes a software tool that calculates costs associated with the reconstruction of supply chain interdependent critical infrastructure in the advent of a catastrophic failure by either outside forces (extreme events) or internal forces (fatigue). This tool fills a gap between search and recover strategies of the Federal Emergency...
Monitoring protocol development and assessment for narrowly endemic toads in Nevada, 2018
Brian J. Halstead, Patrick M. Kleeman, Adam Duarte, Jonathan P. Rose, Kris Urquhart, Chad Mellison, Kevin Guadalupe, Melanie Cota, Rachel Van Horne, Alexa Killion, Kelsey Ruehling
2019, Open-File Report 2019-1067
Several species and subspecies of toads are endemic to small spring systems in the Great Basin, and their restricted ranges and habitat extent make them vulnerable to environmental perturbations. Very little is known about several of these toad populations, so a group of stakeholders including the U.S. Geological Survey, U.S....
Monitoring storm tide from Hurricane Michael along the northwest coast of Florida, October 2018
Michael J. Byrne Sr.
2019, Open-File Report 2019-1059
Hurricane Michael made landfall near Mexico Beach and Tyndall Air Force Base in the Florida Panhandle, with maximum sustained winds over 160 miles per hour, on October 10, 2018. The maximum recorded storm tide was 15.55 feet above the North American Vertical Datum of 1988 (NAVD 88). The elevation of...
Methods for installation, removal, and downloading data from the temperature profiling probe (TROD)
Ramon C. Naranjo
2019, Open-File Report 2019-1066
This document provides a brief method overview on the deployment and removal of the temperature profiling probe developed by the U.S. Geological Survey (USGS) in 2015 and referred to as SensorRod or temperature rod (TROD). The TROD is suitable for short- to long-term deployments (days to years) for evaluating...
Hydrogeologic characterization of part of the Lower Floridan aquifer at the South District Wastewater Treatment Plant, Miami-Dade County, Florida
Kevin L. DeFosset, Kevin J. Cunningham
2019, Open-File Report 2019-1034
The South District Wastewater Treatment Plant in southeastern Miami-Dade County, Florida, includes a Class I treated wastewater injection well system. The detection of ammonia in monitoring zones above the injection zone in the Lower Floridan aquifer has elicited a need to understand the nature of confinement within the Lower Floridan...
Distribution of adult Chinook salmon (Oncorhynchus tshawytscha) in relation to water temperatures, Lake Scanewa, Cowlitz River, Washington, 2012
Tobias J. Kock, Brian K. Ekstrom, Theresa L. Liedtke
2019, Open-File Report 2019-1055
A trap-and-haul program is operated to move anadromous Pacific salmon (Oncorhynchus spp.) around dams and reservoirs in the Cowlitz River basin, Washington. The primary release site for adult fish is in Lake Scanewa, a small reservoir created by Cowlitz Falls Dam, the uppermost dam in the basin. Releases in...
Climate adaptation Science Centers—Annual report for 2018
Elda Varela Minder
2019, Open-File Report 2019-1041
2018 marked the 10-year anniversary of the establishment of the U.S. Geological Survey (USGS) National Climate Change and Wildlife Science Center! With the passage of the fiscal year 2018 budget on March 23, 2018, our program name was changed from the National Climate Change and Wildlife Science Center to the...
Groundwater quality in the Delaware, Genesee, and St. Lawrence River Basins, New York, 2015
Tia-Marie Scott, Elizabeth A. Nystrom, James E. Reddy
2019, Open-File Report 2019-1005
The U.S. Geological Survey, in cooperation with the New York State Department of Environmental Conservation, collected groundwater samples from 5 production wells and 5 domestic wells in the Delaware River Basin, 8 production wells and 7 domestic wells in the Genesee River Basin, and 1 municipal well, 7 production wells,...
