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Spatial And Temporal Growth Opportunity For Juvenile Fall Chinook Salmon In The Snake And Clearwater Rivers Idaho
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Book Synopsis Spatial and Temporal Growth Opportunity for Juvenile Fall Chinook Salmon in the Snake and Clearwater Rivers, Idaho by : Katherine E. Gillies-Rector
Download or read book Spatial and Temporal Growth Opportunity for Juvenile Fall Chinook Salmon in the Snake and Clearwater Rivers, Idaho written by Katherine E. Gillies-Rector and published by . This book was released on 2019 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding the conditions that produce diverse salmonid migration strategies is challenging in a large river network where life history trajectories arise from multiple biotic and abiotic factors. Because early growth is closely linked to migration initiation, identifying the growth conditions experienced by individual fish at a small time scale is crucial. Here, we paired a long-term otolith dataset with a detailed bioenergetic assessment of early growth opportunity in a population of Chinook salmon to identify how growth conditions related to migration initiation. In the Snake river population of fall Chinook salmon, juveniles historically migrated their first summer, but in recent years an overwintering migration strategy has emerged. Using otolith microchemistry and microstructure analysis, we determined that a significant proportion of fish from both the Clearwater and Snake rivers overwinter and migrate the following spring. Notably, Clearwater origin fish that migrated as yearlings performed a larger proportion of their freshwater growth in natal habitat than Snake origin fish. We also found higher growth and consumption during the early growth period for fish originating in the Snake river and downstream reservoir compared to the Clearwater river, by comparing relative growth and consumption using a daily time-step bioenergetics model. The combined bioenergetics and migration analysis demonstrates that while both Snake river and Clearwater origin fish express the overwintering strategy, their relative growth in natal habitats differ. These findings suggest that the yearling migration strategy may arise from different conditions throughout the population, though the net effect is the increasing prevalence of this strategy.
Book Synopsis A Literature Review Relevant to Juvenile Fall Chinook Salmon Habitat Use, Migration Behavior, and Survival in the Lower Snake River by : Matthew L. Keefer
Download or read book A Literature Review Relevant to Juvenile Fall Chinook Salmon Habitat Use, Migration Behavior, and Survival in the Lower Snake River written by Matthew L. Keefer and published by . This book was released on 2008 with total page 47 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Juvenile Life History, Downstream Migration Rate, and Survival of Wild Snake River Fall Chinook Salmon by : William P. Connor
Download or read book Juvenile Life History, Downstream Migration Rate, and Survival of Wild Snake River Fall Chinook Salmon written by William P. Connor and published by . This book was released on 2001 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Migration and Bioenergetics of Juvenile Snake River Fall Chinook Salmon by : Daniel Widener
Download or read book Migration and Bioenergetics of Juvenile Snake River Fall Chinook Salmon written by Daniel Widener and published by . This book was released on 2012 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: While general patterns in the juvenile outmigration of Pacific salmon are well known, the proximate mechanisms informing migration in individuals are still poorly understood. This thesis describes a complex of individually-based bioenergetic and migration initiation models and their application to fall Chinook salmon. We used the Wisconsin bioenergetics model combined with PIT tag and temperature data to model the growth of individual fish within the rearing habitat. We then created and tested a series of mechanistic models of migration initiation using individual fish mass and growth efficiency as proximate triggers of migration. We examined the performance of these models using CPUE data and maximum likelihood optimization methods and found that the model with both fish mass and growth efficiency as possible trigger methods performed the best; we refer to this model as the Mass-Growth model. To further test this model, we then created a correlative model of migration initiation which we refer to as the Age-Growth model. We found the predictions of the Mass-Growth and Age-Growth models to be comparable. We then applied the Mass-Growth and bioenergetic models to PIT data from ocean-type and reservoir-type fall chinook to examine possible triggers that result in the two different life history strategies when fish enter Lower Granite Reservoir. Our models predicted that reservoir-type fish were more likely to initiate migration later and at smaller sizes than ocean-type fish, and that the proximate triggers for migration were more likely to be reversed for reservoir-type fish after they entered Lower Granite Reservoir. We determined that the stratified temperature regime in Lower Granite Reservoir was the primary cause of the reversal of modeled migration triggers; for this reason, we then assert that the cool-water pools in Snake and Columbia River reservoirs provide temperature refuges with favorable growing conditions that result in slower-growing fall Chinook salmon following a reservoir-type life history.
Book Synopsis Use of Growth Data to Determine the Spatial and Temporal Distribution of Four Runs of Juvenile Chinook Salmon in the Sacramento River, California by : Richard R. Johnson
Download or read book Use of Growth Data to Determine the Spatial and Temporal Distribution of Four Runs of Juvenile Chinook Salmon in the Sacramento River, California written by Richard R. Johnson and published by . This book was released on 1992 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spatial and Temporal Distribution of Wild and Hatchery Juvenile Chinook Salmon in Nearshore Lake Ontario by : Micah John Dean
Download or read book Spatial and Temporal Distribution of Wild and Hatchery Juvenile Chinook Salmon in Nearshore Lake Ontario written by Micah John Dean and published by . This book was released on 2002 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Snake River Fall Chinook Salmon Life History Investigations, Annual Report 2008 by :
Download or read book Snake River Fall Chinook Salmon Life History Investigations, Annual Report 2008 written by and published by . This book was released on 2009 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study was initiated to provide empirical data and analyses on the dam passage timing, travel rate, survival, and life history variation of fall Chinook salmon that are produced in the Clearwater River. The area of interest for this study focuses on the lower four miles of the Clearwater River and its confluence with the Snake River because this is an area where many fish delay their seaward migration. The goal of the project is to increase our understanding of the environmental and biological factors that affect juvenile life history of fall Chinook salmon in the Clearwater River. The following summaries are provided for each of the individual chapters in this report.
Book Synopsis Smallmouth Bass Predation on Juvenile Fall Chinook Salmon in the Hells Canyon Reach of the Snake River, Idaho by : Richard David Nelle
Download or read book Smallmouth Bass Predation on Juvenile Fall Chinook Salmon in the Hells Canyon Reach of the Snake River, Idaho written by Richard David Nelle and published by . This book was released on 1999 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nez Perce Tribal Hatchery Program, Snake River by :
Download or read book Nez Perce Tribal Hatchery Program, Snake River written by and published by . This book was released on 1997 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Growth and Abundance of Juvenile Fall Chinook Salmon in Sixes River Estuary, 1969 by : Paul E. Reimers
Download or read book Growth and Abundance of Juvenile Fall Chinook Salmon in Sixes River Estuary, 1969 written by Paul E. Reimers and published by . This book was released on 1970 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rearing of Chinook Salmon in Tributaries of the South Fork Salmon River, Idaho by : William S. Platts
Download or read book Rearing of Chinook Salmon in Tributaries of the South Fork Salmon River, Idaho written by William S. Platts and published by . This book was released on 1978 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effect of Gas Supersaturated Columbia River Water on the Survival of Juvenile Chinook and Coho Salmon by : Theodore H. Blahm
Download or read book Effect of Gas Supersaturated Columbia River Water on the Survival of Juvenile Chinook and Coho Salmon written by Theodore H. Blahm and published by . This book was released on 1975 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Idaho's Chinook Salmon by : Deirdre A Abrams
Download or read book Idaho's Chinook Salmon written by Deirdre A Abrams and published by . This book was released on 2020-12-19 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wild Chinook salmon, some migrating more than 900 miles to the ocean from the high mountains of Idaho, once made up nearly 50% of the Columbia River Basin's salmon runs. In 2020, and over the last twenty years, wild Chinook in Idaho have been in crisis, placed on the endangered species list, and face the growing threat of extinction. In fact, only 2 % of Idaho's wild Chinook population remains. This is not only a crisis for this Idaho salmon but also for biodiversity in the Pacific Northwest. Snake River Chinook salmon are culturally important to many indigenous peoples and are the main source of food for the Southern Resident killer whales (orcas) of Puget Sound; therefore, the plight of Chinook salmon is adversely affecting native traditions and sustenance, and also the Southern Resident orcas, which are also on the endangered species list. Because Chinook salmon who originate in Idaho travel the farthest through the Columbia River Basin to the Pacific Ocean... and back... than any other Chinook population in the lower 48 states, the focus of this book is on them and their miraculous, obstacle-filled migration. It is for the fish and young people that I write this book- in hopes of enlightening and inspiring kids all over the country, not just in Idaho, to learn how very special these brave salmon are and to join me in protecting them!
Book Synopsis Passage and Survival of Juvenile Chinook Salmon Migrating from the Snake River Basin by : American Fisheries Society. Idaho Chapter
Download or read book Passage and Survival of Juvenile Chinook Salmon Migrating from the Snake River Basin written by American Fisheries Society. Idaho Chapter and published by . This book was released on 1992* with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Status of Snake River Fall Chinook Salmon in Relation to the Endangered Species Act by : Theodore C. Bjornn
Download or read book Status of Snake River Fall Chinook Salmon in Relation to the Endangered Species Act written by Theodore C. Bjornn and published by . This book was released on 1981 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissolved Nitrogen Concentrations in the Columbia and Snake Rivers in 1970 and Their Effect on Chinook Salmon and Steelhead Trout by : Wesley J. Ebel
Download or read book Dissolved Nitrogen Concentrations in the Columbia and Snake Rivers in 1970 and Their Effect on Chinook Salmon and Steelhead Trout written by Wesley J. Ebel and published by . This book was released on 1971 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Forecast of Abundance of Snake River Fall Chinook Salmon by : Ned Horner
Download or read book A Forecast of Abundance of Snake River Fall Chinook Salmon written by Ned Horner and published by . This book was released on 1981 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
