Download or read book A Genetic Analysis of Early Development of Unuk River Chinook Salmon written by M. Scott Kelley and published by . This book was released on 1994 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Alaska Fishery Research Bulletin written by and published by . This book was released on 2005 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Progress in Development of a DNA Baseline for Genetic Identification of Chinook Salmon Stocks of the Copper River Basin Alaska written by Lisa Wishard Seeb and published by . This book was released on 2006 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report serves as a first-year summary of progress of a contract study intended to document the timing and origins of chinook salmon, Oncorhynchus tshawytscha, stocks in the Copper River and adjacent ocean fisheries using DNA markers. The project is intended to investigate the genetic structure of chinook salmon from the Copper River drainage using both microsatellite and single nucleotide polymorphisms (SNPs). Identification of genetic stocks of chinook salmon within the Copper River drainage and knowledge of their run timing and migration patterns will provide valuable information to optimize management and provide for sustainable fisheries. The first objective of this contract study is to develop a DNA database to delineate major geographic and temporal stocks of chinook salmon within the Copper River. This objective requires collection of tissue samples as well as the laboratory DNA analyses of those tissues. A second objective is to investigate run timing and entry patterns within the Copper River through the analysis of radio-tagged and fishwheel samples from Baird Canyon. A third objective is to characterize the timing of Copper River stocks in the ocean fisheries and estimate the contribution to this fishery by stocks of non-Copper River origin. Finally, these data will be standardized and contributed to a coastwide DNA database so that Copper River chinook salmon can be tracked throughout their marine migration. This report reviews the first year of the study which concentrated on objective 1.
Download or read book Development of Microsatellite Genetic Markers for Kenai River Chinook Salmon written by Robert N. Begich and published by . This book was released on 2010 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: Significant genetic variation exists among populations of Chinook salmon from Kenai River drainage. Recent analyses using microsatellite markers confirm the results of the earlier studies which detected differences between early- and late-run Chinook salmon based on allozyme and mitochondrial DNA markers. This report presents the results of a survey of 13 microsatellite loci (from a standardized set used by the Pacific Salmon Commission Chinook Technical Committee) in 977 individual fish representing nine Chinook salmon populations in the drainage. Average genotyping failure rate was approximately 4.5%, with the majority of failures in the Slikok Creek collection (success rate ~ 35.9%) where samples mainly came from carcass sampling. Estimates of per-locus FST ranged from 0.019 to 0.045 suggesting a level of divergence among collections that should be useful for management applications. The populations in the baseline could be separated into four groups based on geographic, behavioral, and genetic characteristics: Lower Kenai River tributaries, Kenai River mainstem, Killey River, and Quartz Creek. Simulation results indicate that contributions from these groups can be detected in fishery harvests with a high degree of precision and accuracy (mean correct allocation = 96.7%).
Download or read book Genetic History of Chinook and Sockeye Salmon Analyzed Using Ancient and Contemporary Mitochondrial DNA written by Bobbi May Johnson and published by . This book was released on 2016 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific salmon (Oncorhynchus spp.) serve an important social and economic role in western North America. Despite historical abundance, native salmonids are now at risk of extinction throughout much of their native range. The accurate characterization of historic range, population size, and gene flow is essential for the development of successful conservation strategies. Therefore, conservation disciplines may look to the past to inform the future. One framework for such investigations is phylogeography, which examines geographical and genealogical connections in an effort to understand the evolutionary history of organisms. Another avenue is the study of genetic data from temporally diverse samples, which facilitates the direct observation of a genetic history.
Download or read book Genetic Analysis of Hatchery and Wild Fall run Chinook Salmon onchorhynchus Tshawytscha in Central Valley California written by Olivia Avelino and published by . This book was released on 2000 with total page 152 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Using Genetic Tools to Inform Management and Study Local Adaptation in Pacific Salmon written by Wesley Alan Larson and published by . This book was released on 2015 with total page 187 pages. Available in PDF, EPUB and Kindle. Book excerpt: Genetic analysis represents a powerful tool for informing management and studying adaptation in wild populations. For example, genetic tools can be used to delineate conservation units, assign individuals of unknown ancestry back to their populations of origin, and identify genes that are important for local adaptation. The overall goal of my thesis was to apply genetic tools to improve population-specific management and identify the genetic basis of local adaptation in Pacific salmon. Pacific salmon (Oncorhynchus sp.) return to their natal spawning habitats with high fidelity, promoting the formation of distinct populations that are highly adapted to their local environment. Pacific salmon are also an extremely important economic, cultural, and subsistence resource. These characteristics make Pacific salmon ideal candidates for population-specific management and facilitate the study of local adaptation. My dissertation consists of six chapters divided into two major themes. The first three chapters focus on applied research questions aimed at developing and utilizing genetic tools to improve management of Chinook salmon (Oncorhynchus tshawytscha), and the last three chapters focus on understanding the genetic basis of local adaptation in sockeye salmon (Oncorhynchus nerka). In chapter one, we used an existing genetic baseline to elucidate the migration patterns of Chinook salmon in the marine environment. Chapters two and three explored the use of genomics in a management context, applying data from thousands of genetic markers to develop novel resources that will aid in the conservation of Chinook salmon from western Alaska. For chapter four, we investigated patterns of selection at the major histocompatibility complex (MHC) in populations of sockeye salmon from the Wood River basin in southwestern Alaska. In chapter five, we constructed a genetic linkage map and conducted QTL analysis in five families of sockeye salmon. Finally, in chapter six we merged the linkage map with population data to study the genomic basis of adaptive divergence among three ecotypes of sockeye salmon from the Wood River basin. Taken together, these studies highlight the utility of genetic tools, especially genomics, for improving management and studying local adaptation in Pacific salmon.
Download or read book Evaluation of Growth Survival and Recruitment of Chinook Salmon in Southeast Alaska Rivers written by Cory J. Graham and published by . This book was released on 2016 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent reductions in the run sizes of Chinook Salmon Oncorhynchus tshawytscha in Southeast Alaska have resulted in social and economic hardships within the region. Pacific salmon yearclass strength may be determined by size-selective processes during the early marine phase of their life cycle; however, the relative importance of growth during freshwater and marine residence in determining recruitment success is unknown. A scale-based retrospective analysis was conducted to examine the effects of freshwater and annual marine growth and early marine conditions on survival to reproductive maturity for female Chinook Salmon by brood year (BY) in the Taku (BYs 1979 – 1985, 1990 – 1999, 2002 – 2004) and Unuk (BYs 1981 – 1983, 1986 – 1988, 1994 – 2003, 2005 – 2006) rivers. First-year marine growth was positively related to survival and total return for Chinook Salmon stocks from both systems. Growth during freshwater residence (i.e., size-at-ocean entry) was not related to survival or total return of either stock. In addition, there was a positive relationship between marine survival of Unuk River Chinook Salmon and sea-surface temperatures in Upper Chatham Strait, Icy Strait, and Auke Bay Monitor (P = 0.04) during early marine residence. The results of my research highlight the importance of growth and marine conditions during the first year at sea in determining the survival of Chinook Salmon in Southeast Alaska and suggest that current declines in run sizes and survival of stocks within this region may be the attributed to poor growth conditions or growth during early marine residence.
Download or read book Genetic Analysis of Upper Columbia Spring and Summer Chinook Salmon for the Rock Island Hatchery Evaluation Program written by Anne R. Marshall and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production of Unuk River Chinook Salmon Through 2008 from the 1992 2005 Broods written by Jan L. Weller and published by . This book was released on 2012 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the results of two-event mark-recapture experiments, which were used to estimate the abundance of Chinook salmon Oncorhynchus tshawytscha that returned to spawn in the Unuk River in 2007 and 2008.
Download or read book Chinook Salmon Research on the Unuk River 1994 written by Keith A. Pahlke and published by . This book was released on 1996 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Production of Unuk River Chinook Salmon Through 2009 from the 1992 2006 Broods written by Jan L. Weller and published by . This book was released on 2012 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reports on the results of a two-event mark-recapture experiment, which was used to estimate the abundance of Chinook salmon Oncorhynchus tshawytscha that returned to spawn in the Unuk River in 2009.
Download or read book Genetic Analysis of Early and Late Run Sockeye Salmon on the Klukshu River written by Elizabeth Kathleen Fillatre and published by . This book was released on 2001 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study of Chinook Salmon in Southeast Alaska written by Robert D. Mecum and published by . This book was released on 1989 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Genetic Analysis of Chehalis River Basin Chinook Salmon oncorhynchus Tshawytscha written by and published by . This book was released on 2017 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Natural origin Chinook Salmon and Steelhead Life History and Genetic Diversity at PIT Tag Detection Locations Throughout the Snake River Basin written by John S. Hargrove and published by . This book was released on 2019 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report summarizes life history and genetic diversity information for wild adult steelhead and spring/summer Chinook Salmon sampled at Lower Granite Dam and later detected in a Distinct Population Segment (DPS) or Evolutionarily Significant Unit (ESU) population in the Snake River basin for the 01/01/2018 to 12/31/2018 reporting period. This reporting period covers analysis of individuals crossing Lower Granite Dam in spawn year 2018. A total of 2,306 steelhead and 1,372 Chinook Salmon were sampled at Lower Granite Dam, 905 and 704 of which were subsequently identified at a PIT tag detection location elsewhere in the Snake River basin. Panels of up to 379 SNPs were genotyped at both Idaho Department of Fish and Game's Eagle Fish Genetics Lab and its collaborating laboratory, the Columbia River Inter-Tribal Fish Commission's Hagerman Genetics Lab, to assign these fish to hatchery parents or wild genetic stocks. We describe the life history variation and genetic diversity of steelhead and Chinook Salmon detected in Snake River populations. The information presented in this report provides critical data for viable Salmonid population monitoring of the Snake River steelhead DPS and the Snake River spring/summer Chinook Salmon ESU.
Download or read book The Genetic Structure of Chinook and Coho Salmon Populations in California with a Note on the Genetic Variability in Sturgeon Acipenseridae written by Devin Michael Bartley and published by . This book was released on 1987 with total page 432 pages. Available in PDF, EPUB and Kindle. Book excerpt: Populations of chinook, Oncorhynchus tshawytscha, and coho salmon, O. kisutch, from Northern California and four species of North American sturgeon were analyzed by horizontal starch-gel electrophoresis. The products of 53 gene loci from 27 enzyme systems were used to characterize the genetic structure of 35 groups of hatchery and wild chinook salmon. The distribution of specific alleles, cluster analysis based on genetic identities, analyses of gene flow, and gene diversity analyses indicated that groups of chinook salmon from the three major river drainages in California were genetically differentiated. The products of 45 gene loci from 21 enzyme systems were used to characterize the genetic structure of 27 groups of coho salmon. Most of the observed genetic variation was due to rare alleles occurring in only a few groups of salmon. No obvious association of specific alleles with geographic area was observed and the low level of genetic variability made patterns of genetic structure or associations among the groups of coho salmon difficult to determine. The application of biochemical-genetic analyses to the management of chinook and coho salmon fisheries was addressed. A comparison of hatchery groups of chinook and coho salmon with wild groups in the same area revealed that hatchery stocks generally reflect the genetic structure of the local populations. The genetic differentiation of chinook salmon by drainage could provide fishery scientists with a means to identify specific groups of chinook salmon. The application of this technique to manage coho salmon populations is problematic at the present given the seemingly random distribution of alleles and the low levels of genetic variability. The products of seven gene loci were used to identify hybridization between chinook and coho salmon in a collection of salmon from a tributary to the Trinity River. The implications of a group of hybrid fish in the wild were discussed in terms of genetic resource conservation and disease transmission. The products of 20 gene loci were used to characterize the genetic structure and relationship of four species of sturgeon: Acipenser transmontanus, A. medirostris, A. fulvescens, and A. brevirostrum. Fixed allelic differences existed among the four species at several gene loci and each species could be unambiguously identified by its genetic profile.
