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Publications

Below is a list of available CRRL peer reviewed and published science.

Filter Total Items: 520

Survival and tag retention of Pacific lamprey larvae and macrophthalmia marked with coded wire tags Survival and tag retention of Pacific lamprey larvae and macrophthalmia marked with coded wire tags

We examined the survival, tag retention, and growth of Pacific lamprey Lampetra tridentata larvae and macrophthalmia marked with standard-length decimal coded wire tags and exposed to two levels of handling stress. The survival of marked individuals did not differ from that of unmarked individuals at either life stage for the duration of the experiment (56 d). Tag retention was 100% for...
Authors
M.H. Meeuwig, A.L. Puls, J.M. Bayer

WFRC patrners: our extended family WFRC patrners: our extended family

For more than five decades the Western Fisheries Research Center (WFRC) has worked with partners to provide research findings to managers of aquatic resources. Those partners form an extended family, a network of clients, colleagues, co-investigators, and customers. Our partners include numerous clients in other Department of Interior bureaus such as the U.S. Fish and Wildlife Service...
Authors
P. Connolly, D. Elliot, M. Parsley, J. Winton

Bypass system modification at Bonneville Dam on the Columbia River improved the survival of juvenile salmon 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 powerhouse where bypass system flow reentered...
Authors
J.W. Ferguson, B.P. Sandford, R.E. Reagan, L.G. Gilbreath, E.B. Meyer, R.D. Ledgerwood, N.S. Adams

Population status of North American green sturgeon, Acipenser medirostris Population status of North American green sturgeon, Acipenser medirostris

North American green sturgeon, Acipenser medirostris, was petitioned for listing under the Endangered Species Act (ESA). The two questions that need to be answered when considering an ESA listing are; (1) Is the entity a species under the ESA and if so (2) is the "species" in danger of extinction or likely to become an endangered species in the foreseeable future throughout all or a...
Authors
P.B. Adams, C. Grimes, J.E. Hightower, S.T. Lindley, M.L. Moser, M.J. Parsley

Effects of antenna length and material on output power and detection of miniature radio transmitters Effects of antenna length and material on output power and detection of miniature radio transmitters

The optimal antenna of transmitters used in small aquatic animals is often a compromise between efficient radio wave propagation and effects on animal behavior. Radio transmission efficiency generally increases with diameter and length of the conductor, but increased antenna length or weight can adversely affect animal behavior. We evaluated the effects of changing antenna length and...
Authors
J.W. Beeman, N. Bower, S. Juhnke, L. Dingmon, Tillaart M. Van Den, T. Thomas

Migration behavior and dispersal of adult spring Chinook salmon released into Lake Scanewa on the upper Cowlitz River during 2005 Migration behavior and dispersal of adult spring Chinook salmon released into Lake Scanewa on the upper Cowlitz River during 2005

During 2005, we conducted a radio-telemetry study to answer a number of basic questions about the migration behavior of adult Spring Chinook salmon (Oncorhynchus tshawytscha) released into the upper Cowlitz River watershed. We also conducted a pilot study of adult Coho salmon (Oncorhynchus kisutch) using radio-tags recovered from adult spring Chinook salmon. This data is included as an...
Authors
R.W. Perry, Tobias J. Kock, M.A Kritter, Dennis W. Rondorf
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