Download or read book McKenzie River Spring Chinook Salmon written by and published by . This book was released on 2003 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book McKenzie River Spring Chinook Salmon Program written by and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Migratory Behavior of Adult Spring Chinook Salmon in the Willamette River and Its Tributaries written by and published by . This book was released on 1994 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Willamette Spring Chinook Salmon written by and published by . This book was released on 1996 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Connecting Tidal fluvial Life Histories to Survival of McKenzie River Spring Chinook Salmon Oncorhynchus Tshawytscha written by Gordon W. Rose and published by . This book was released on 2015 with total page 111 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chinook salmon returns to the Columbia River basin have declined due to impacts of a growing human population, despite significant mitigation expenditures. Consequently, fisheries managers have become focused on recovery and long-term viability of at-risk populations. A viable population depends, in part, on the connectivity and quality of diverse habitat types salmon require to complete their anadromous life-cycles. The tidal-fluvial Columbia River estuary is one link in this chain of habitats, but was largely over-looked as important Chinook salmon habitat until recently. Habitat restoration projects are underway in the tidal Columbia River estuary with the goal of increasing survival benefits to juvenile Chinook salmon. However, knowledge gaps remain about stock-specific use of tidal-fluvial habitat and tracking these restoration efforts is largely subjective. This study has sought to quantify the importance of tidal-fluvial habitat for a critical population of Chinook salmon, from the McKenzie River in the upper Willamette River Basin. Using otolith micro-chemistry profile analysis, juvenile net growth in the tidal-fluvial Columbia River was back-calculated for 92 natural-origin McKenzie River Chinook salmon across outmigration years 2005 and 2006. All otoliths were sampled from McKenzie River adult salmon to draw inferences about the juvenile life histories of surviving spawners. Mean ± SD net growth in the tidal fluvial estuary for all years was 5.48 ± 5.81 mm for subyearlings and 7.43 ± 8.32mm for yearlings. Differences in mean net growth by juvenile life-history type were not significant despite a prevailing assumption that subyearlings rear longer in estuary habitat than yearlings. Emigration sizes and net-growth estimates were significantly greater for subyearlings in outmigration year 2005 than 2006; there was only suggestive evidence emigration sizes were greater for yearlings in outmigration year 2005 than 2006, and net-growth estimates were similar between years. Sixteen percent (15 of 92) of McKenzie Chinook salmon grew between 10 and 43 mm over approximately 25-100 days in the tidal-fluvial Columbia River. Extended rearing in tidal-fluvial habitat provided an alternate life-history pathway for some yearling (12), fingerling (one), and fry (two) migrants. Subyearlings with intermediate-rearing or migratory life history pathways had greater net growth in tidal-fluvial habitat during 2005 than 2006, and in 2005 environmental conditions were unfavorable to overall salmon productivity. Fixed effects linear regression models suggest tidal-fluvial habitat supports McKenzie Chinook salmon life-history diversity, growth, and size, and therefore likely contributes to population resilience.

Download or read book McKenzie Hatchery Spring Chinook Salmon written by and published by . This book was released on 2018 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Willamette River Spring Chinook Evaluation Marion Forks Hatchery Evaluation McKenzie River Hatchery Evaluation written by Eugene M. Smith and published by . This book was released on 1979 with total page 23 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book An Investigation of Adult Spring Chinook Salmon of the Willamette River System 1946 51 written by Chester R. Mattson and published by . This book was released on 1963 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Population Dynamics of Bull Trout and Spring Chinook Salmon at the Carmen Smith Hydroelecrric Project Upper McKenzie River Basin Oregon written by and published by . This book was released on 2006 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Willamette River Spring Chinook Evaluation Improving Survival of Spring Chinook Smolts from Willamette River Hatcheries Marion Forks Hatchery Evaluation McKenzie River Hatchery Evaluation written by Eugene M. Smith and published by . This book was released on 1980 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring Chinook Chapters written by and published by . This book was released on 1998 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rearing Spring Chinook Salmon in Willamette River Reservoirs written by Max Smith and published by . This book was released on 1976 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Early Life History of Willamette River Spring Chinook Salmon written by Chester R. Mattson and published by . This book was released on 1962 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring Chinook Salmon in the Willamette and Sandy Rivers written by R. Kirk Schroeder and published by . This book was released on 2000* with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Spring Chinook Salmon in the Willamette and Sandy Rivers Oregon written by Robert Bryan Lindsay and published by . This book was released on 1997 with total page 59 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Willamette River Temperature Control McKenzie Subbasin Oregon written by United States. Office of the Assistant Secretary of the Army (Civil Works) and published by . This book was released on 1997 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Early History and Seaward Migration of Chinook Salmon in the Columbia and Sacramento Rivers written by Willis H. Rich and published by . This book was released on 1920 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt: