scholarly journals Investigations of Bull Trout (Salvelinus Confluentus), Steelhead Trout (Oncorhynchus Mykiss), and Spring Chinook Salmon (O. Tshawytscha) Interactions in Southeast Washington Streams. Final Report 1992.

10.2172/45562 ◽  
1995 ◽  
Author(s):  
Keith D. Underwood
Keyword(s):  
Oncorhynchus Mykiss ◽  
Chinook Salmon ◽  
Final Report ◽  
Bull Trout ◽  
Steelhead Trout ◽  
Salvelinus Confluentus

scholarly journals Stock Identification of Columbia River Chinook Salmon and Steelhead Trout, 1986 Final Report.

1986 ◽  
Author(s):  
Carl B. Schreck ◽  
Hiran W. Li ◽  
Randy C. Hjort
Keyword(s):  
Chinook Salmon ◽  
Columbia River ◽  
Final Report ◽  
Stock Identification ◽  
Steelhead Trout

Effects of Salinity on Growth, Metabolism, and Ion Regulation in Juvenile Rainbow and Steelhead Trout (Oncorhynchus mykiss) and Fall Chinook Salmon (Oncorhynchus tshawytscha)

1991 ◽  
Vol 48 (11) ◽  
pp. 2083-2094 ◽  
Author(s):  
John D. Morgan ◽  
George K. Iwama
Keyword(s):  
Oncorhynchus Mykiss ◽  
Metabolic Rate ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Energetic Cost ◽  
Life History Stage ◽  
Metabolic Rates ◽  
Steelhead Trout ◽  
Ionic Homeostasis ◽  
Ion Regulation

Rainbow and steelhead trout (Oncorhynchus mykiss) and fall chinook salmon (Oncorhynchus tshawytscha) fry were acclimated to a range of salinities to test the hypothesis that the energy requirements for ion regulation would be minimal at an isotonic water salinity (8–10 ppt). Survival, growth, metabolic rate, plasma Na+ and Cl− concentrations, and seawater adaptability were measured for 5–12 wk, depending on the species. Growth of all three species was highest in fresh water and declined with increasing salinity. Metabolic rates increased with salinity and were inversely correlated with growth rates. Isotonic salinity, therefore, did not offer significant metabolic or growth advantages to rainbow, steelhead, and chinook fry. While plasma Na+ and Cl− concentrations varied among groups, chinook fry tended to better maintain ionic homeostasis at higher salinities than the trout. Acclimation to the various dilute salinities did not influence the seawater adaptability of juvenile steelhead trout or chinook salmon. Our results indicate that optimal salinities for growth and metabolic rates were influenced by species and life history stage. The metabolic rate data suggested that the energetic cost of ionic regulation increased with salinity, but attempts to quantify this cost were probably affected by other metabolic processes which responded to changes in salinity.

Diel movements of out-migrating Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss) smolts in the Sacramento/San Joaquin watershed

2012 ◽  
Vol 96 (2-3) ◽  
pp. 273-286 ◽  
Author(s):  
Eric D. Chapman ◽  
Alex R. Hearn ◽  
Cyril J. Michel ◽  
Arnold J. Ammann ◽  
Steven T. Lindley ◽  
...  
Keyword(s):  
Oncorhynchus Mykiss ◽  
Chinook Salmon ◽  
Oncorhynchus Tshawytscha ◽  
Steelhead Trout

Is solar radiation responsible for declines in marine survival rates of anadromous salmonids that rear in small streams?

1998 ◽  
Vol 55 (12) ◽  
pp. 2533-2538 ◽  
Author(s):  
Carl Walters ◽  
Bruce Ward
Keyword(s):  
Solar Radiation ◽  
Atlantic Salmon ◽  
Oncorhynchus Mykiss ◽  
Salmo Salar ◽  
Chinook Salmon ◽  
Coho Salmon ◽  
Survival Rates ◽  
Steelhead Trout ◽  
Small Streams ◽  
Marine Survival

There have been profound declines in marine survival rates of steelhead trout (Oncorhynchus mykiss), coho salmon (O. kisutch), chinook salmon (O. tschawytscha), and Atlantic salmon (Salmo salar) since the mid-1980s, and these declines have been particularly acute in sunny regions. We suggest that the problem may originate in freshwater with radiation (e.g., UV-B) damage to metabolic machinery that is expressed during stressful periods of smolting and ocean entry and that progressively worse damage may soon appear as reduction in freshwater survivals as well. This hypothesis can be tested quickly by management agencies by comparing survival rates of hatchery-reared fish with and without radiation protection during rearing.

Interannual variation of reach specific migratory success for Sacramento River hatchery yearling late-fall run Chinook salmon (Oncorhynchus tshawytscha) and steelhead trout (Oncorhynchus mykiss)

2012 ◽  
Vol 96 (2-3) ◽  
pp. 363-379 ◽  
Author(s):  
Gabriel P. Singer ◽  
Alex R. Hearn ◽  
Eric D. Chapman ◽  
Matthew L. Peterson ◽  
Peter E. LaCivita ◽  
...  
Keyword(s):  
Oncorhynchus Mykiss ◽  
Chinook Salmon ◽  
Interannual Variation ◽  
Oncorhynchus Tshawytscha ◽  
Sacramento River ◽  
Steelhead Trout ◽  
Late Fall

Relative sensitivity of bull trout (Salvelinus confluentus) and rainbow trout (Oncorhynchus mykiss) to acute exposures of cadmium and zinc

2002 ◽  
Vol 21 (1) ◽  
pp. 67-75 ◽  
Author(s):  
James A. Hansen ◽  
Paul G. Welsh ◽  
Josh Lipton ◽  
Dave Cacela ◽  
Anne D. Dailey
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Relative Sensitivity ◽  
Bull Trout ◽  
Salvelinus Confluentus ◽  
Rainbow Trout Oncorhynchus Mykiss
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