Publications
Juvenile Chinook salmon
Below is a list of available CRRL peer reviewed and published science.
Filter Total Items: 520
Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2005 Passage behavior of radio-tagged subyearling Chinook salmon at Bonneville Dam, 2005
No abstract available
Authors
R.E. Reagan, M.J. Farley, S.D. Evans, L.S Wright, N.S. Adams, D.W. Rondorf
Survival estimates of migrant juvenile salmonids through The Dalles Dam using radio telemetry, 2005 Survival estimates of migrant juvenile salmonids through The Dalles Dam using radio telemetry, 2005
No abstract available
Authors
T. Counihan, A. Puls, C. Walker, G. Holmberg
Predicted changes in subyearling fall Chinook salmon rearing and migratory habitat under two drawdown scenarios for John Day Reservoir, Columbia River Predicted changes in subyearling fall Chinook salmon rearing and migratory habitat under two drawdown scenarios for John Day Reservoir, Columbia River
We evaluated the potential effects of two different drawdown scenarios on rearing and migration habitat of subyearling fall Chinook salmon Oncorhynchus tshawytscha in John Day Reservoir on the Columbia River. We compared habitats at normal operating pool elevation with habitats at drawdown to spillway crest elevation and drawdown to the historical natural river elevation for two flows (4...
Authors
K.F. Tiffan, R.D. Garland, D.W. Rondorf
Lower Methow tributaries intensive effectiveness monitoring study. 2005 progress report Lower Methow tributaries intensive effectiveness monitoring study. 2005 progress report
n/a
Authors
P.J. Connolly, K. Martens, D. Ruttenberg, S. Clayton
Evaluation of energy expenditure in adult spring Chinook salmon migrating upstream in the Columbia River Basin: an assessment based on sequential proximate analysis Evaluation of energy expenditure in adult spring Chinook salmon migrating upstream in the Columbia River Basin: an assessment based on sequential proximate analysis
The upstream migration of adult anadromous salmonids in the Columbia River Basin (CRB) has been dramatically altered and fish may be experiencing energetically costly delays at dams. To explore this notion, we estimated the energetic costs of migration and reproduction of Yakima River-bound spring Chinook salmon Oncorhynchus tshawytscha using a sequential analysis of their proximate...
Authors
M.G. Mesa, C.D. Magie
Comparison of synthesis of 15α-hydroxylated steroids in males of four North American lamprey species Comparison of synthesis of 15α-hydroxylated steroids in males of four North American lamprey species
Recent studies have provided evidence that 15α-hydroxytestosterone (15α-T) and 15α-hydroxyprogesterone (15α-P) are produced in vitro and in vivo in adult male sea lampreys (Petromyzonmarinus), and that circulatory levels increase in response to injections with gonadotropin-releasing hormone (GnRH). We examined four species from the Petromyzontidae family including silver lampreys...
Authors
Mara B. Bryan, Bradley A. Young, David A. Close, Jesse Semeyn, T. Craig Robinson, Jennifer M. Bayer, Weiming Li
Ecology of an estuarine mysid shrimp in the Columbia River (USA) Ecology of an estuarine mysid shrimp in the Columbia River (USA)
The estuarine mysid, Neomysis mercedis, has colonized John Day and other run-of-the-river Reservoirs of the Columbia River, over 400 km from the estuary. In John Day Reservoir N. mercedis numbers peaked (2 m-3) in August in areas near the dam in association with lower water velocity and softer bottom than at the upstream sampling sites. Neomysis broods were primarily released in late...
Authors
C. A. Haskell, J. A. Stanford
Using diatom assemblages to assess urban stream conditions Using diatom assemblages to assess urban stream conditions
We characterized changes in diatom assemblages along an urban-to-rural gradient to assess impacts of urbanization on stream conditions. Diatoms, water chemistry, and physical variables of riffles at 19 urban and 28 rural stream sites were sampled and assessed during the summer base flow period. Near stream land use was characterized using GIS. In addition, one urban and one rural site...
Authors
C. E. Walker, Y. Pan
Effects of sediment cover on survival and development of white sturgeon embryos Effects of sediment cover on survival and development of white sturgeon embryos
A simple, inexpensive apparatus (embryo incubation unit [EIU]) was developed and used to assess the relationship between sediment cover (Kootenai River sediments, 97% by weight in the 0.83-mm- to 1.0-mm-diameter range) and survival of white sturgeon Acipenser transmontanus embryos in the laboratory. An apparatus-testing trial assessed the effects of two sediment depths (5 and 20 mm)...
Authors
T.J. Kock, J.L. Congleton, P.J. Anders
Morphometric discrimination of early life stage Lampetra tridentata and L richardsoni (Petromyzonidae) from the Columbia river basin Morphometric discrimination of early life stage Lampetra tridentata and L richardsoni (Petromyzonidae) from the Columbia river basin
The effectiveness of morphometric and meristic characteristics for taxonomic discrimination of Lampetra tridentata and L. richardsoni (Petromyzonidae) during embryological, prolarval, and early larval stages (i.e., age class 1) were examined. Mean chorion diameter increased with time from fertilization to hatch and was significantly greater for L. tridentata than for L. richardsoni at 1...
Authors
M.H. Meeuwig, J.M. Bayer, R.A. Reiche
Assess current and potential salmonid production in Rattlesnake Creek associated with restoration efforts Assess current and potential salmonid production in Rattlesnake Creek associated with restoration efforts
No abstract available
Authors
M.B. Allen, P.J. Connolly
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 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...
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