Publications
Juvenile Chinook salmon
Below is a list of available CRRL peer reviewed and published science.
Filter Total Items: 524
Effects of hydropower operations on spawning habitat, rearing habitat, and standing/entrapment mortality of fall Chinook salmon in the Hanford Reach of the Columbia River
This report describes research conducted primarily in 2003 and 2004 to evaluate the effects of upstream dam operations on spawning and rearing conditions for fall Chinook salmon, Oncorhynchus tshawytscha, in the Hanford Reach of the Columbia River. Results from habitat modeling tasks which continued in 2005 and 2006 are also included in this report. This study is focused on the effects of streamfl
Authors
Donald R. Anglin, Steven L. Haeseker, Joseph J. Skalicky, Howard Schaller, Kenneth F. Tiffan, James R. Hatten, Paul Hoffarth, John Nugent, David Benner, Marv Yoshinaka
Behavior and passage of juvenile salmonids during evaluation of a new fish screen at Cowlitz Falls Dam, 2006
In spring of 2006, Tacoma Power installed a new fish screen at the Cowlitz Falls Project (CFP) with the purpose of improving the collection of anadromous juvenile fish for downstream transport. The new fish screen was placed between the upstream baffle panels and the fish gates and flume system that lead to the Cowlitz Falls Fish Facility. We initiated a radio telemetry evaluation of the screen us
Authors
T.J. Kock, M.A Kritter, T.L. Liedtke, D.W. Rondorf
Lower Methow tributaries intensive effectiveness monitoring study. 2005 progress report
n/a
Authors
P.J. Connolly, K. Martens, D. Ruttenberg, S. Clayton
Toxicokinetics and effects of PCBs in Arctic fish: a review of studies on Arctic charr
In a series of environmentally realistic laboratory experiments, toxicokinetics and effects of polychlorinated biphenyls (PCBs) were studied in the Arctic charr (Salvelinus alpinus). Winter fasting and emaciation, which are common among Arctic charr living in high latitudes, resulted in a redistribution of the lipophilic PCBs from lipid-storing tissue such as the muscle, to vital organs that must
Authors
EH Jorgensen, M.N. Vijayan, J.-E.A. Killie, N. Aluru, O. Aas-Hansen, A. Maule
White sturgeon mitigation and restoration in the Columbia and Snake rivers upstream from Bonneville Dam Report C, Annual Progress Report April 2003 - March 2004
River discharge and water temperatures that occurred during April through July 2003 provided conditions suitable for spawning by white sturgeon downstream from Bonneville, The Dalles, John Day, and McNary dams. Although optimal spawning temperatures in the four tailraces occurred for less than two weeks, they coincided with a period of relatively high river discharge. Bottom-trawl sampling in Bonn
Authors
Michael J. Parsley, Dena M. Gadomski, Pete Kofoot
The Western Fisheries Research Center studies: threatened and endangered fishes
Within historical time, western native fish communities have faced increasing threats from habitat loss, invasive species, and pollution. It should come as no surprise that human development has greatly altered fish habitat in the west because of the importance of water for domestic, agricultural, and industrial uses, power generation, waste disposal, flood protection, and transportation. Fish tha
Authors
M. Parsley, G.G. Scoppettone, R. Shively, D. Gadomski, D. Becker
Managing water in the West: developing new tools for a critical resource
Rapid population growth in the Western United States over the last century has placed increasing strains on our water supplies and aquatic ecosystems. Historically, water rights have been used to determine the allocation of water in the West, but rules and regulations related to endangered species now often drive how water is released from reservoirs in large rivers such as the lower Colorado and
Authors
G.G. Scoppettone, D. Gadomski, J. Petersen, J. Hatten
Aquatic invasive species
Invasive species are plants or animals that are present in an ecosystem beyond their native range. They may have few natural controls in their new environment and proliferate. They can threaten native species and interfere with human activities. The Western Fisheries Research Center (WFRC) has been conducting research to understand how non-native species invade and affect ecosystems, thus aiding m
Authors
R. Rodriguez, T. Counihan, J. Petersen, D. Gadomski, D. Becker
The Columbia River Research Laboratory
The U.S. Geological Survey's Columbia River Research Laboratory (CRRL) was established in 1978 at Cook, Washington, in the Columbia River Gorge east of Portland, Oregon. The CRRL, as part of the Western Fisheries Research Center, conducts research on fishery issues in the Columbia River Basin. Our mission is to: 'Serve the public by providing scientific information to support the stewardship of ou
Authors
Alec Maule
Fish can get diseases too
Infectious diseases are increasingly recognized as an important component of the ecology of fish in the wild. Many of the viral, bacterial, protozoan and fungal pathogens of fish that were initially discovered in captive fish have their origin among wild populations; however, the impact of disease among these free-ranging stocks has been difficult to study. At the WFRC, combinations of field and l
Authors
J. R. Winton, M. Mesa, G. Kurath, D. Elliot
Investigating passage of ESA-listed juvenile fall Chinook salmon at Lower Granite Dam during winter when the fish bypass system is not operated. Annual report 2004
No abstract available
Authors
K.T. Tiffan, W.P. Connor
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 studies to determine which management actions would pr
Authors
R.E. Reagan, S.D. Evans, L.S Wright, M.J. Farley, N.S. Adams, D.W. Rondorf