Rachel Reagan
Science and Products
The Columbia River Research Laboratory
The mission of the Columbia River Research Laboratory is to serve the public by providing scientific information to support the stewardship of our Nation's fish and aquatic resources, with emphasis on the Columbia River basin. As a part of the U.S. Geological Survey (USGS) Western Fisheries Research Center, we conduct objective, relevant research...
Waste, Steve; Reagan, Rachel
Survival and migration behavior of juvenile salmonids at McNary Dam, 2006
During 2006, we used acoustic telemetry and a route-specific survival model (RSSM, Skalski et al. 2002) to estimate behavior, passage, and survival of juvenile salmonids during two different spill operations and diel periods at McNary Dam. An evaluation of 12-h versus 24-h spill was proposed for the spring migration period at McNary Dam. However,...
Bypass system modification at Bonneville Dam on the Columbia River improved the survival of juvenile salmon
From 1987 to 1992, we evaluated a fish bypass system at Bonneville Dam Powerhouse 2 on the Columbia River. The survival of subyearling Chinook salmon Oncorhynchus tshawytscha released into the system ranged from 0.774 to 0.911 and was significantly lower than the survival of test fish released into turbines and the area immediately below the...
Ferguson, J.W.; Sandford, B.P.; Reagan, R.E.; Gilbreath, L.G.; Meyer, E.B.; Ledgerwood, R.D.; Adams, N.S. Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2005
No abstract available
Reagan, R.E.; Farley, M.J.; Evans, S.D.; Wright, L.S; Adams, N.S.; Rondorf, D.W. Distribution, migration behavior, habitat use, and species interactions of fall-released juvenile hatchery spring Chinook salmon in the Deschutes River, Oregon, 2003
In a review of National Fish Hatcheries (NFH), the U.S. Fish and Wildlife Service (USFWS) identified the need to assess the fate of hatchery-reared fish and their potential effect on the aquatic community (USFWS 1998). Additionally, the National Marine Fisheries Service (NMFS) recommended monitoring and evaluating ecological interactions between...
Reagan, R.E.; Adams, N.S.; Rondorf, D.W.; Fitzgerald, G.; Spateholts, R.; Hoffman, T.; Olson, D.E. Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2004
Flow augmentation, spill, surface collection, and improved turbine guidance systems have been identified as potential management actions to improve passage efficiency and survival of outmigrating juvenile salmonids. The U.S. Army Corps of Engineers (USACE), along with regional, state, and federal resource agencies, has designed and implemented...
Reagan, R.E.; Evans, S.D.; Wright, L.S; Farley, M.J.; Adams, N.S.; Rondorf, D.W. Passage behavior of radio-tagged yearling Chinook salmon and steelhead at Bonneville Dam, 2004: Revised for corrected spill annual report
Flow augmentation, spill, surface collection, and improved turbine guidance systems have been identified as potential management actions to improve passage efficiency and survival of outmigrating juvenile salmonids. The U.S. Army Corps of Engineers (USACE), along with regional, state, and federal resource agencies, has designed and implemented...
Reagan, R.E.; Evans, S.D.; Wright, L.S; Farley, M.J.; Adams, N.S.; Rondorf, D.W. Distribution, migration behavior, habitat use, and species interactions of fall-released juvenile hatchery spring Chinook salmon on the Deschutes River, Oregon, 2002, Annual report 2002
In a review of National Fish Hatcheries (NFH), the U.S. Fish and Wildlife Service (USFWS) identified the need to assess the fate of hatchery-reared fish and their potential effect on the aquatic community (USFWS 1998). Additionally, in the Columbia River Biological Opinion, the National Marine Fisheries Service (NMFS) recommended monitoring and...
Reagan, Rachel E.; Connolly, Patrick J.; Adams, Noah S.; Mesa, Matthew G.; Rondorf, Dennis W. Assessment and analysis of smolt condition in the Columbia River Basin, volume 1: Evaluation of the effect of a modified feeding strategy on growth and smoltification of summer steelhead (Oncorhynchus mykiss) at Dworshak National Fish Hatchery
Abstract not available
Schrock, R.M.; Reagan, R.E.; Petrusso , P.A.; Coyle, J.Pre-USGS Publications
This Month at WFRC
This page contains WFRC "Highlights" reported February, 2020
Western Fisheries Science News, May 2019 | Issue 7.5
Interactive Data Visualization Tool Allows Us to Explore Fish Use of Eelgrass Habitat in Puget Sound
Western Fisheries Science News, February 2019 | Issue 7.2
Identifying Habitat Characteristics for Successful White Sturgeon Recruitment in the Columbia River Basin
Western Fisheries Science News, June 2018 | Issue 6.6
Evaluating Innovative Fish Passage Alternatives to Support Upstream Sockeye Salmon Passage
Western Fisheries Science News, May 2018 | Issue 6.5
WFRC Science Takes to the Skies with Unmanned Aerial Systems
Western Fisheries Science News, March 2018 | Issue 6.3
Science Collaboration Brings Dr. Maya Groner to WFRC
Western Fisheries Science News, January 2018 | Issue 6.1
Researching Pacific Herring in Alaska’s Prince William Sound
Western Fisheries Science News, December 2017 | Issue 5.12
USGS Expertise and Science Leads to Ballast Water Management Solutions
Western Fisheries Science News, October 2017 | Issue 5.10
Scientists Continue to Gain Insights into Endangered Suckers in the Klamath Basin
Western Fisheries Science News, September 2017 | Issue 5.9
Conducting Risk Assessments for the Reintroduction of Salmon in the Upper Columbia River
Western Fisheries Science News, August 2017 | Issue 5.8
Science to Support Salmon Recovery Efforts in the Puget Sound
Western Fisheries Science News, May 2017 | Issue 5.5
Exploring the Role of Non-Native American Shad in the Columbia River Basin