Download or read book Genetic Distinction of Winter run and Summer run Steelhead in the Hood River Oregon written by Andrew Paul Matala and published by . This book was released on 2005 with total page 70 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Oregon Department of Fish and Wildlife (ODFW) is currently conducting a longterm hatchery supplementation program for summer-run (SR) and winter-run (WR) steelhead trout in the Hood River. ODFW is concerned about the genetic risk to both threatened ecotypes resulting frompotential crossbreeding that may occur within their hatchery supplementation program. A previous draft report by this lab provided evidence for genetic divergence between SR and WR steelhead, and supports the management of these ecotypes as separate populations. In this study, we investigated the feasibility of using genetic data at microsatellite, nuclear DNA loci to identify WR and SR steelhead for broodstock. Adult fish identified as either SR or WR, based on return time to Hood River, and juveniles collected from the east, middle, and west forks of Hood River, were genotyped using a suite of 22 microsatellite loci. A neighbor-joining dendrogram, based on Cavalli-Sforza and Edwards chord distance, showed a SR adult and west fork juvenile steelhead cluster distinct from a second cluster of WR adult, and east and middle fork juvenile steelhead. This topology provides evidence of a genetic basis for separation of ecotypes into the different sub-basins of the Hood River. Because juveniles provide a better representative genetic profile for each ecotype, subsequent data analyses were conducted treating juveniles as the baseline to differentiate SR (west fork) and WR (east, middle forks). The 22 loci examined in this study provided improved discriminatory power for distinguishing SR from WR fish over the set of seven loci examined in our BPA draft report dated 10-23-03. A power analysis showed 92.5% (345 of 374) of the east/middle fork fish, and 84.6% (159 of 188) of the west fork fish in the juvenile baseline had likelihood ratios consistent with their respective groups in a jack-knife baseline analysis. Power of assignment of the SR and WR adults to the juvenile baseline produced results similar to the jackknife power analysis: 89.4% of WR assigned to either the east or middle forks, while 80.9% of SR assigned to the west fork. We determined that the 15 highest ranked loci produce results with assignment stringency comparable to the results from the complete 22 loci set, and that these 15 loci can be used to establish a genetic based rapid-response protocol to aid in the identification of Hood River SR and WR fish to use for broodstock in the long-term hatchery supplementation programs for these two threatened ecotypes."--Summary (page 1).
Download or read book Hood River Steelhead Genetics Study Relative Reproductive Success of Hatchery and Wild Steelhead in the Hood River Final Report 2002 2003 written by and published by . This book was released on 2003 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is a considerable interest in using hatcheries to speed the recovery of wild populations. The Bonneville Power Administration (BPA), under the authority of the Northwest Power Planning Act, is currently funding several hatchery programs in the Columbia Basin as off-site mitigation for impacts to salmon and steelhead caused by the Columbia River federal hydropower system. One such project is located on the Hood River, an Oregon tributary of the Columbia. These hatchery programs cost the region millions of dollars. However, whether such programs actually improve the status of wild fish remains untested. The goal of this project was to evaluate the effectiveness of the Hood River hatchery program as required by the Northwest Power Planning Council Fish and Wildlife Program, by the Oregon Plan for Coastal Salmonids, by NMFS ESA Section 4(d) rulings, and by the Oregon Department of Fish and Wildlife (ODFW) Wild Fish Management Policy (OAR 635-07-525 through 529) and the ODFW Hatchery Fish Gene Resource Management Policy (OAR 635-07-540 through 541). The Hood River supports two populations of steelhead, a summer run and a winter run. They spawn only above the Powerdale Dam, which is a complete barrier to all salmonids. Since 1991 every adult passed above the dam has been measured, cataloged and sampled for scales. Therefore, we have a DNA sample from every adult steelhead that went over the dam to potentially spawn in the Hood River from 1991 to the present. Similar numbers of hatchery and wild fish have been passed above the dam during the last decade. During the 1990's 'old' domesticated hatchery stocks of each run (multiple generations in the hatchery, out-of-basin origin; hereafter H{sub old}) were phased out, and conservation hatchery programs were started for the purpose of supplementing the two wild populations (hereafter 'new' hatchery stocks, H{sub new}). These samples gave us the unprecedented ability to estimate, via microsatellite-based pedigree analysis, the relative total reproductive success (adult-to-adult production) of hatchery (H{sub old} or H{sub new}) and wild (W) fish for two populations, over multiple brood years. Our analyses of samples from fish that bred in the early to mid 1990's show that fish of 'old' hatchery stocks have much lower total fitness than wild fish (17% to 54% of wild fitness), but that 'new' stocks have fitness that is similar to that of wild fish (ranging from 85% to 108% of wild fitness, depending on parental gender and run year). Therefore, our results show that the decision to phase out the old, out-of-basin stocks and replace them with new, conservation hatchery stocks was well founded. We also conclude that the H{sub new} fish are leaving behind substantial numbers of wild-born offspring. The similar fitnesses of H{sub new} and W fish suggests that wild-born offspring of H{sub new} fish are unlikely to have negative genetic effects on the population when they in turn spawn in the wild. We will test this hypothesis once enough F2 offspring have returned. Another interesting result is that we were unable to match a large fraction of the unclipped, returning fish with parents from their brood year. Furthermore, we were missing more fathers than mothers. Because we sampled almost every possible anadromous parent, these results suggest that nonanadromous trout or precocious parr may be obtaining a substantial number of matings. Substantial reproduction by precocious parr could be one unintended consequence of the hatchery program.
Download or read book Bradwood Landing Project written by and published by . This book was released on 2008 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Analysis of Washington Steelhead written by and published by . This book was released on 1994 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Reintroduction of Fish and Wildlife Populations written by David S. Jachowski and published by Univ of California Press. This book was released on 2016-09-20 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reintroduction of Fish and Wildlife Populations provides a practical step-by-step guide to successfully planning, implementing, and evaluating the reestablishment of animal populations in former habitats or their introduction in new environments. In each chapter, experts in reintroduction biology outline a comprehensive synthesis of core concepts, issues, techniques, and perspectives. This manual and reference supports scientists and managers from fisheries and wildlife professions as they plan reintroductions, initiate releases of individuals, and manage restored populations over time. Covering a broad range of taxonomic groups, ecosystems, and global regions, this edited volume is an essential guide for academics, students, and professionals in natural resource management.
Download or read book Federal Register written by and published by . This book was released on 2013 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Icicle Creek Restoration Project written by and published by . This book was released on 2002 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book North Pacific Salmonid Enhancement Programs and Genetic Resources written by Michael D. Kelly and published by . This book was released on 1990 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hood River Fisheries Project written by United States. Bonneville Power Administration and published by . This book was released on 1996 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Energy Regulatory Commission Reports written by United States. Federal Energy Regulatory Commission and published by . This book was released on 2002 with total page 2516 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conservation and the Genomics of Populations written by Fred W. Allendorf and published by Oxford University Press. This book was released on 2022-02-10 with total page 785 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relentless loss of biodiversity is among the greatest problems facing the world today. The third edition of this established textbook provides an updated and comprehensive overview of the essential background, concepts, and tools required to understand how genetics can be used to conserve species, reduce threat of extinction, and manage species of ecological or commercial importance. This edition is thoroughly revised to reflect the major contribution of genomics to conservation of populations and species. It includes two new chapters: "Genetic Monitoring" and a final "Conservation Genetics in Practice" chapter that addresses the role of science and policy in conservation genetics. New genomic techniques and statistical analyses are crucial tools for the conservation geneticist. This accessible and authoritative textbook provides an essential toolkit grounded in population genetics theory, coupled with basic and applied research examples from plants, animals, and microbes. The book examines genetic and phenotypic variation in natural populations, the principles and mechanisms of evolutionary change, evolutionary response to anthropogenic change, and applications in conservation and management. Conservation and the Genomics of Populations helps demystify genetics and genomics for conservation practitioners and early career scientists, so that population genetic theory and new genomic data can help raise the bar in conserving biodiversity in the most critical 20 year period in the history of life on Earth. It is aimed at a global market of applied population geneticists, conservation practitioners, and natural resource managers working for wildlife and habitat management agencies. It will be of particular relevance and use to upper undergraduate and graduate students taking courses in conservation biology, conservation genetics, and wildlife management.
Download or read book Sustainable Fisheries Management written by E. Eric Knudsen and published by CRC Press. This book was released on 2020-02-10 with total page 706 pages. Available in PDF, EPUB and Kindle. Book excerpt: What has happened to the salmon resource in the Pacific Northwest? Who is responsible and what can be done to reverse the decline in salmon populations? The responsibly falls on everyone involved - fishermen, resource managers and concerned citizens alike - to take the steps necessary to ensure that salmon populations make a full recovery. T
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:
Download or read book Hood River Winter Steelhead Program written by and published by . This book was released on 2000 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetics of Subpolar Fish and Invertebrates written by Anthony J. Gharrett and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fisheries genetics researchers will find invaluable the thirty-eight peer-reviewed contributions in this book, presented at the 20th Lowell Wakefield Fisheries Symposium "Genetics of Subpolar Fish and Invertebrates," held in May 2002 in Juneau, Alaska. Looming over concerns of lost fisheries stocks and persistent erosion of genetic variability are predictions of global warming, which may further tax genetic resources. One consequence is an increased reliance on genetic applications to many aspects of fisheries management, aquaculture, and conservation. The contributions in this book are important to modern fisheries science and genetics, and illustrate the evolution of the field over the past decade. The improved technology provides tools to address increasingly complicated problems in traditional applications and ecological and behavioral studies. The union between molecular and quantitative genetics, where many of the major questions about population structure and evolution remain unanswered, will also benefit from the new technologies.
Download or read book Olympic National Park N P Elwha River Ecosystem Restoration Programmatic EIS Clallam County written by and published by . This book was released on 1995 with total page 750 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies of Hatchery and Wild Steelhead in the Lower Columbia Region written by and published by . This book was released on 1995 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
