Download or read book Genetic Morphometric and Life History Characteristics of Sockeye Salmon Oncorhynchus Nerka in the Wood River Lake System Alaska written by Lisa Anne Wetzel and published by . This book was released on 1993 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Differentiation of Sockeye Salmon Oncorhynchus Nerka Populations in the Wood River Lakes of Bristol Bay Alaska written by Marcia Marie Bender and published by . This book was released on 1998 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book History of the Fishery and Summary Statistics of the Sockeye Salmon Oncorhynchus Nerka Runs to the Chignik Lakes Alaska 1888 1966 written by Michael L. Dahlberg and published by . This book was released on 1979 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphological Life History and Genetic Comparison of Early and Late Run Sockeye Salmon Oncorhynchus Nerka of Bear Lake Alaska written by Kristina M. Ramstad and published by . This book was released on 1998 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Proceedings of the International Symposium on Genetics of Subarctic Fish and Shellfish written by and published by . This book was released on 1994 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A History of Sockeye Salmon Research Karluk River System Alaska 1880 2010 written by Richard Gard and published by . This book was released on 2014 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fisheries Review written by and published by . This book was released on 1995 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spatio temporal Genetic Structure Effective Population Size and Parentage Simulations from Contemporary Genetic Samples and Historic Demographic Data of Sockeye Salmon Oncorhynchus Nerka in Auke Lake Alaska written by Patrick D. Barry and published by . This book was released on 2021 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pacific salmon (Oncorhynchus spp.) have great ecological, economic, and cultural importance. Accordingly, understanding the genetic diversity of Pacific salmon populations is critical for their effective management and conservation. Spatial and temporal homing fidelity, a central life-history characteristic of Pacific salmon, generates genetic structure through reproductive isolation. Within and among populations, heterogeneity in the freshwater environment should lead to selection for traits that maximize fitness resulting in local adaptation. This adaptation increases productivity of individual populations while diversity among populations can promote long-term stability. Additionally, the demographic properties (age structure, generation length, size) of a population will affect genetic structure by regulating its response to the evolutionary forces of selection, migration, and genetic drift. The scale and extent to which reproductive isolation can produce genetic structure is incompletely understood. In this dissertation, I investigated spatial and temporal trends in population genetic structure and estimated the effective population size (Ne) of Sockeye Salmon from Auke Lake in Southeast Alaska from contemporary genetic samples (2008, 2009, 2011) and historic demographic data (1980–2017). A simulation library in the R statistical environment was developed to assess the accuracy of parentage and sibship inference from genetic markers. This library proved useful in evaluating the sibship method for estimating Ne from genetic data and evaluating genetic markers for a large-scale parentage project. I detected substantial genetic differentiation between Auke Lake and other Southeast Alaska populations (average FST = 0.1137) and an isolation-by-time pattern within the Auke Lake population. A genetically distinct cluster was identified in the late portion of the 2008 return. This group may represent a spatially segregated spawning aggregation previously described in tagging studies; however, because fish were sampled as they passed through the weir, spatial structure within Auke Lake could not be evaluated. Genetic tests for demographic change within the population indicated that the Auke Lake Sockeye Salmon population underwent a historical bottleneck event but has since increased in size. Demographic estimates of Ne from a long-term dataset from the Auke Creek weir revealed that the effective population size was low in the early 1980s and has since increased. Over the six generations evaluated, the major demographic factors that determined Ne were variance in family size, variable contribution to the next generation by brood years within a generation, and fluctuations in population size. Contemporary estimates of Ne from genetic methods were smaller than those from demographic methods and indicated that Ne may be roughly the size of an individual return year. Genetic estimates of the ratio of the effective population size to the census size (Ne/Nc = 0.21) were consistent with values previously reported for other salmonids. Collectively, these chapters contribute to an improved understanding of Sockeye Salmon population genetics and provide a useful tool to assess the power of genetic markers for parentage and sibship inference.
Download or read book Ecological Studies of Sockeye Salmon and Related Limnological and Climatological Investigations Brooks Lane Alaska 1957 written by Theodore R. Merrell and published by . This book was released on 1964 with total page 820 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecological studies on the fresh-water phases of the life history of sockeye salmon and studies on related limnology and climatology were made at Brooks Lake, Alaska, in 1957. Data are presented and interpreted on adult sockeye salmon spawning distributions and behavior, age, sex, length, fecundity, and bear predation; on juvenile sockeye salmon ages, food, growth, migration from the lake, relative abundance, and distribution in the lake; and on climatological and limnological factors that may influence sockeye salmon behavior and abundance.
Download or read book Biological Characteristics and Population Status of Anadromous Salmon in Southeast Alaska written by and published by . This book was released on 2000 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2010 with total page 742 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Migration Timing of Sockeye Salmon Oncorhynchus Nerka in the Wood River Lake System Alaska written by Melinda L. Rowse and published by . This book was released on 1985 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sockeye Salmon Oncorhynchus Nerka written by Canada. Department of Fisheries and Oceans and published by Fisheries and Oceans, Information and Publications Branch. This book was released on 1987 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt: A three-day symposium was organized by the Department of Fisheries and Oceans and convened at Nanaimo, British Columbia in November 1985. Advice on subject matter and participation came from an external committee of senior scientists and administrators in contributing agencies in Canada, Japan, the United States, and the Union of Soviet Socialist Republics. The papers included in the proceedings deal with sockeye biology and stock management. Papers on sockeye biology are divided into those concerned primarily with life history strategies and enhancement and development. Papers dealing with management are divided into the tools of management and management of some principal stocks.
Download or read book Northwest Science written by and published by . This book was released on 1997 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Functional Ecology and Evolution of Sockeye Salmon Oncorhynchus Nerka Life History in the Dynamic Environments of Aniakchak and Katmai written by Scott Anthony Pavey and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sockeye salmon exhibit great ecological diversity among populations. During the last glacial period, ice covered much of what today are freshwater habitats. As the glaciers retreated, sockeye colonized new freshwater habitats from relatively few glacial refugia. Colonizing populations adapted at a very fine spatial scale among river drainages, tributaries and lakes within rivers, and even divergent habitats within lakes. All of this occurred within the past 15,000 years since the last glacial maximum. This resulted in many thousands of locally adapted populations and a grand display of the process of evolution within a species. In this dissertation, I explore genetic and phenotypic diversity in the dynamic and changing environments of Aniakchak National Monument and Preserve as well as Katmai National Park in southwest Alaska. Recent eruptions at Aniakchak include events 500 and 79 years ago and the caldera presently contains sockeye salmon populations spawning in different habitats. Using genetic tools, I find that ecological divergence occurred in egg size and body depth in less than 500 years or 100 generations. Secondly, sockeye salmon exhibit a broad life history division by rearing habitat; some populations rearing in lakes (lake-type sockeye) and others rearing in rivers (riverine sockeye). I describe differences in juvenile body shape and relate these to differences in foraging strategy and predation. Finally, I apply gene expression technology to understand the life history differences and the molecular trade-offs in sockeye salmon populations. I start with a review of recent technological advances that relate gene expression to ecology, evolution, and the formation and maintenance of new species. I then relate functional, expressed genes in muscle tissue to lake-type and riverine juvenile populations. This provides an ecological context to genes that are normally only described in artificial situations. Taken together, this work furthers the understanding of the interaction of ecology and evolution, from genes to populations to broad life history types.
Download or read book Variation in the Early Life History of Sockeye Salmon Oncorhynchus Nerka written by Caryn A. Abrey and published by . This book was released on 2005 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Morphometric Differences Among Spawning Populations of Sockeye Salmon Oncorhyncus Nerka in the Wood River Lake System written by Susan M. Bishop and published by . This book was released on 1990 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
