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Genetic Differentiation Of Sockeye Salmon Oncorhynchus Nerka Populations In The Wood River Lakes Of Bristol Bay Alaska
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Book Synopsis Genetic Differentiation of Sockeye Salmon (Oncorhynchus Nerka) Populations in the Wood River Lakes of Bristol Bay, Alaska by : Marcia Marie Bender
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:
Book Synopsis Serological Differentiation of Populations of Sockeye Salmon, Oncorhynchus Nerka by : George J. Ridgway
Download or read book Serological Differentiation of Populations of Sockeye Salmon, Oncorhynchus Nerka written by George J. Ridgway and published by . This book was released on 1958 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis History of the Fishery and Summary Statistics of the Sockeye Salmon, Oncorhynchus Nerka, Runs to the Chignik Lakes, Alaska, 1888-1966 by : Michael L. Dahlberg
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 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic, Morphometric, and Life History Characteristics of Sockeye Salmon (Oncorhynchus Nerka) in the Wood River Lake System, Alaska by : Lisa Anne Wetzel
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:
Author :Canada. Department of Fisheries and Oceans Publisher :Fisheries and Oceans, Information and Publications Branch ISBN 13 : Total Pages :508 pages Book Rating :4.:/5 (31 download)
Book Synopsis Sockeye Salmon (Oncorhynchus Nerka) by : Canada. Department of Fisheries and Oceans
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.
Book Synopsis Spatial and Temporal Patterns of Homeward Migration and Population Structure in Sockeye Salmon (Oncorhynchus Nerka) in the Wood River System, Bristol Bay, Alaska by : Katy K. Doctor
Download or read book Spatial and Temporal Patterns of Homeward Migration and Population Structure in Sockeye Salmon (Oncorhynchus Nerka) in the Wood River System, Bristol Bay, Alaska written by Katy K. Doctor and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Trends in the Freshwater Growth of Sockeye Salmon (Oncorhynchus Nerka) from the Wood River Lakes and Nushagak Bay, Alaska by : Mark Zimmermann
Download or read book Trends in the Freshwater Growth of Sockeye Salmon (Oncorhynchus Nerka) from the Wood River Lakes and Nushagak Bay, Alaska written by Mark Zimmermann and published by . This book was released on 1991 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 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 by : Patrick D. Barry
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 Alaska's Fisheries Resources written by and published by . This book was released on 1969 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Influences of Spawning Habitat and Geography by : Molly T. McGlauflin
Download or read book Influences of Spawning Habitat and Geography written by Molly T. McGlauflin and published by . This book was released on 2010 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Some Aspects of the Comparative Ecology of Fishes Associated with Juvenile Sockeye Salmon, Oncorhynchus Nerka (Walbaum), in the Lakes of the Naknek River System, Alaska by : Richard L. Wallace
Download or read book Some Aspects of the Comparative Ecology of Fishes Associated with Juvenile Sockeye Salmon, Oncorhynchus Nerka (Walbaum), in the Lakes of the Naknek River System, Alaska written by Richard L. Wallace and published by . This book was released on 1969 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the distribution, relative abundance and diet of fishes sympatric with juvenile sockeye salmon, Oncorhynchus nerka (Walbaum), within the freshwater nursery areas of the Naknek River system was undertaken from 1961 to 1963. The study was part of an extensive investigation to determine what factors in the freshwater environment were limiting the size of the populations of sockeye salmon returning to the rivers of Bristol Bay, Alaska. The speties found associated with juvenile salmon in the limnetic zones of the Naknek system were the pond smelt, Hypomesus olidus (Pallas); the least cisco, Coregonus sardinella Valenciennes; the threespine stickleback, Gasterosteus aculeatus Linnaeus; and the ninespine stickleback, Pungitius pungitius (Linnaeus). Life history information was collected for these sympatric species. Tow nets were used to capture samples of fish from the limnetic portions of the nursery areas. Some samples were collected by beach seines, lake traps and otter trawls. Plankton samples were collected and compared to the diets of the limnetic fishes. Although some confusion has existed in the literature, I concluded that pond smelt of the Naknek system belong to Hypomesus olidus (Pallas). The populations of smelt were comprised of six age-groups in the late summer, but most specimens belonged to three age-groups. Most members of the species spawn in the spring of the fourth year of life. The estimated fecundity ranged from 900 to 4,300 eggs per female. Seven age-groups of least ciscoes were present in the populations of the Naknek system. The species in the Naknek system probably spawned for the first time in the fall of their fourth year. The estimated fecundity of two specimens was 4,006 and 14,380 eggs. Populations of three spine stickleback were comprised of three age-groups of fish. I was unable to assign ages to ninespine stickleback. Estimates of the fecundity of the species ranged from 116 to 456 eggs per female. All species studied were distributed throughout the Naknek system. The relative abundance of the fishes studied was variable between and within nursery areas and from year to year. The population densities of pond smelt and threespine stickleback were larger in the surface waters compared to the deep waters. The relative abundance of sockeye fry, yearlings and ninespine stickleback was greater in the surface stratum rather than the deep stratum in most nursery areas. The five main food items utilized by these limnetic species were cladocerans (Bosmina sp. and Daphnia sp.); copepods (cyclopoid copepods and Diaptomus sp.); and Dipteran insects. Analysis of the similarity of diets indicated that the diets of sockeye fry and pond smelt were more similar than were the diets of sockeye fry or yearlings and any other sympatric species. The diet of sockeye fry was more similar to that of either species of stickleback than was the diet of sockeye yearlings. An analysis of the food of various sizes of each species of fish indicated the diets of three age-groups of smelt were more similar than the diets of various age-groups of any other fish. The food composition of three age-groups of ciscoes and two size groups of both species of stickleback showed a strong positive correlation. The diets of sockeye fry and yearlings showed the weakest positive correlation of the species studied. All species of fish studied selectively fed on one or more components of the zooplankton. Daphnia sp. and cyclopoid copepods were strongly selected in Lake Coville. Cyclopoids were selected in South Bay. Bosmina sp. was selected from the waters of West End. In Lake Coville, the greatest potential competition for food probably existed between the large populations of pond smelt and sockeye fry. In the West End nursery area, potential competition between juvenile salmon and both species of stickleback may not be severe, depending on the age composition of the salmon population present in the nursery area. The possibility exists that the relatively low numbers of adult sockeye salmon returning to the comparatively rich lakes of the Naknek River system is due to the presence of large populations of sympatric species of fish. Each of these sympatric species feed on the same general types of food organisms as do the juvenile salmon and may affect the numbers of young salmon that leave the lake, and subsequently return from the ocean.
Book Synopsis The Behavior and Ecology of Pacific Salmon and Trout by : Thomas P. Quinn
Download or read book The Behavior and Ecology of Pacific Salmon and Trout written by Thomas P. Quinn and published by UBC Press. This book was released on 2011-11-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.
Book Synopsis Collection and Analysis of Biological Data from the Wood River Lake System, Nushagak District, Bristol Bay, Alaska by : Donald E. Rogers
Download or read book Collection and Analysis of Biological Data from the Wood River Lake System, Nushagak District, Bristol Bay, Alaska written by Donald E. Rogers and published by . This book was released on 1977 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Diversity of Sockeye Salmon (Oncorhynchus Nerka) of Cook Inlet, Alaska, and Its Application to Restoration of Injured Populations of the Kenai River by : Lisa Wishard Seeb
Download or read book Genetic Diversity of Sockeye Salmon (Oncorhynchus Nerka) of Cook Inlet, Alaska, and Its Application to Restoration of Injured Populations of the Kenai River written by Lisa Wishard Seeb and published by . This book was released on 1995 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effects of Spawning Sockeye Salmon, Oncorhynchus Nerka, on Small Streams in the Wood River Lakes, Alaska by : Douglas Paul Peterson
Download or read book The Effects of Spawning Sockeye Salmon, Oncorhynchus Nerka, on Small Streams in the Wood River Lakes, Alaska written by Douglas Paul Peterson and published by . This book was released on 1998 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ecological Studies of Sockeye Salmon and Related Limnological and Climatological Investigations, Brooks Lane, Alaska, 1957 by : Theodore R. Merrell
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.
Book Synopsis Sockeye Salmon Evolution, Ecology, and Management by : Carol Ann Woody
Download or read book Sockeye Salmon Evolution, Ecology, and Management written by Carol Ann Woody and published by . This book was released on 2007 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: