Publications
USGS divers in the Elwha River
WFRC zebrafish laboratory
Processing a Lost River sucker
Below is a list of available WFRC peer reviewed and published science.
Filter Total Items: 2489
Mapping and monitoring Mount Graham red squirrel habitat with Lidar and Landsat imagery
The Mount Graham red squirrel (Tamiasciurus hudsonicus grahamensis) is an endemic subspecies located in the Pinaleño Mountains of southeast Arizona. Living in a conifer forest on a sky-island surrounded by desert, the Mount Graham red squirrel is one of the rarest mammals in North America. Over the last two decades, drought, insect infestations, and fire destroyed much of its habitat. A federal re
Authors
James R. Hatten
Evaluating the predictive performance of empirical estimators of natural mortality rate using information on over 200 fish species
Many methods have been developed in the last 70 years to predict the natural mortality rate, M, of a stock based on empirical evidence from comparative life history studies. These indirect or empirical methods are used in most stock assessments to (i) obtain estimates of M in the absence of direct information, (ii) check on the reasonableness of a direct estimate of M, (iii) examine the range of p
Authors
Amy Y. Then, John M Hoenig, Norman G. Hall, David A. Hewitt
Methow River Studies, Washington: abundance estimates from Beaver Creek and the Chewuch River screw trap, methodology testing in the Whitefish Island side channel, and survival and detection estimates from hatchery fish releases, 2013
Salmon and steelhead populations have been severely depleted in the Columbia River from factors such as the presence of tributary dams, unscreened irrigation diversions, and habitat degradation from logging, mining, grazing, and others (Raymond, 1988). The U.S. Geological Survey (USGS) has been funded by the Bureau of Reclamation (Reclamation) to provide evaluation of on-going Reclamation funded e
Authors
Kyle D. Martens, Teresa M. Fish, Grace A. Watson, Patrick J. Connolly
Behavior and dam passage of juvenile Chinook salmon and juvenile steelhead at Detroit Reservoir and Dam, Oregon, March 2012-February 2013
The in-reservoir movements and dam passage of individual juvenile Chinook salmon (Oncorhynchus tshawytscha) and juvenile steelhead (Oncorhynchus mykiss) were studied at Detroit Reservoir and Dam, near Detroit, Oregon, during 2012 and 2013. The goal of the study was to provide data to inform decisions about future downstream passage alternatives and factors affecting downstream passage rates with t
Authors
John W. Beeman, Hal C. Hansel, Amy C. Hansen, Scott D. Evans, Philip V. Haner, Tyson W. Hatton, Eric E. Kofoot, Jamie M. Sprando, Collin D. Smith
Indigenous community health and climate change: integrating biophysical and social science indicators
This article describes a pilot study evaluating the sensitivity of Indigenous community health to climate change impacts on Salish Sea shorelines (Washington State, United States and British Columbia, Canada). Current climate change assessments omit key community health concerns, which are vital to successful adaptation plans, particularly for Indigenous communities. Descriptive scaling techniques
Authors
Jamie Donatuto, Eric E. Grossman, John Konovsky, Sarah Grossman, Larry W. Campbell
Evaluation of the behavior and movement of adult summer steelhead in the lower Cowlitz River, Washington, following collection and release, 2013-2014
Summer steelhead (Oncorhynchus mykiss) produced by a hatchery on the lower Cowlitz River, Washington, support a popular sport fishery during June–September each year. Many of these fish return to the Cowlitz Salmon Hatchery and are held until they are spawned in December. In the past, fishery managers have released some of the steelhead that return to the hatchery at downstream release sites (here
Authors
Tobias J. Kock, Theresa L. Liedtke, Brian K. Ekstrom, Chris Gleizes, Wolf Dammers
Performance of a surface bypass structure to enhance juvenile steelhead passage and survival at Lower Granite Dam, Washington
An integral part of efforts to recover stocks of Pacific salmon Oncorhynchus spp. and steelhead O. mykiss in Pacific Northwest rivers is to increase passage efficacy and survival of juveniles past hydroelectric dams. As part of this effort, we evaluated the efficacy of a prototype surface bypass structure, the removable spillway weir (RSW), installed in a spillbay at Lower Granite Dam, Washington,
Authors
Noah S. Adams, John M. Plumb, Russell W. Perry, Dennis W. Rondorf
The response of stream periphyton to Pacific salmon: using a model to understand the role of environmental context
1. In stream ecosystems, Pacific salmon deliver subsidies of marine-derived nutrients and disturb the stream bed during spawning. The net effect of this nutrient subsidy and physical disturbance on biological communities can be hard to predict and is likely to be mediated by environmental conditions. For periphyton, empirical studies have revealed that the magnitude and direction of the response t
Authors
J. Ryan Bellmore, Alexander K. Fremier, Francine Mejia, Michael Newsom
Investigation of methods for successful installation and operation of Juvenile Salmon Acoustic Telemetry System (JSATS) hydrophones in the Willamette River, Oregon, 2012
Acoustic telemetry equipment was installed at three sites in the Willamette River during October 2012 to test the effectiveness of using the Juvenile Salmon Acoustic Telemetry System to monitor the movements of fish in a high-flow, high-velocity riverine environment. Hydrophones installed on concrete blocks were placed on the bottom of the river, and data cables were run from the hydrophones to sh
Authors
Gary L. Rutz, Matthew D. Sholtis, Noah S. Adams, John W. Beeman
Riparian restoration framework for the Upper Gila River, Arizona
This technical report summarizes the methods and results of a comprehensive riparian restoration planning effort for the Gila Valley Restoration Planning Area, an approximately 53-mile portion of the upper Gila River in Arizona (Figure 1-1). This planning effort has developed a Restoration Framework intended to deliver science-based guidance on suitable riparian restoration actions within the ecol
Authors
Bruce K. Orr, Glen L. Leverich, Zooey E. Diggory, Tom L. Dudley, James R. Hatten, Kevin R. Hultine, Matthew P. Johnson, Devyn A. Orr
Assessing climate-change risks to cultural and natural resources in the Yakima River Basin, Washington, USA
We provide an overview of an interdisciplinary special issue that examines the influence of climate change on people and fish in the Yakima River Basin, USA. Jenni et al. (2013) addresses stakeholder-relevant climate change issues, such as water availability and uncertainty, with decision analysis tools. Montag et al. (2014) explores Yakama Tribal cultural values and well-being and their incorpora
Authors
James R. Hatten, Stephen M. Waste, Alec G. Maule
Susceptibility of Koi and Yellow Perch to infectious hematopoietic necrosis virus by experimental exposure
Infectious hematopoietic necrosis virus (IHNV) is a novirhabdoviral pathogen that originated in western North America among anadromous Pacific salmonids. Severe disease epidemics in the late 1970s resulting from IHNV's invasion into farmed Rainbow Trout Oncorhynchus mykiss in North America, Asia, and Europe emphasized IHNV's ability to adapt to new hosts under varying rearing conditions. Yellow Pe
Authors
Alexander D. Palmer, Eveline J. Emmenegger