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Use Of Calcified Structures For Stock Discrimination In Great Lakes Walleye Stizostedion Vitreum
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Book Synopsis Use of Calcified Structures for Stock Discrimination in Great Lakes Walleye (Stizostedion Vitreum) by : Kevin Hedges (J.)
Download or read book Use of Calcified Structures for Stock Discrimination in Great Lakes Walleye (Stizostedion Vitreum) written by Kevin Hedges (J.) and published by . This book was released on 2002 with total page 1496 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Differentiation of Walleye Stocks in Lake St. Clair and Western Lake Erie by : Thomas N. Todd
Download or read book Genetic Differentiation of Walleye Stocks in Lake St. Clair and Western Lake Erie written by Thomas N. Todd and published by . This book was released on 1990 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Genetic Population Structure and Mixed Stock Analysis of Walleye (Stizostedion Vitreum) in the Lake Erie-Lake Huron Corridor by : Tara Lynn McParland
Download or read book Genetic Population Structure and Mixed Stock Analysis of Walleye (Stizostedion Vitreum) in the Lake Erie-Lake Huron Corridor written by Tara Lynn McParland and published by . This book was released on 1996 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mineralogical Magazine written by and published by . This book was released on 2008 with total page 744 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Age Determination of Walleye (Stizostedion Vitreum Vitreum (Mitchill) by : J. S. Campbell
Download or read book Age Determination of Walleye (Stizostedion Vitreum Vitreum (Mitchill) written by J. S. Campbell and published by . This book was released on 1979 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Otolith Techniques for Identifying and Discriminating Between Pond-cultured and Indigenous Walleye, Stizostedion Vitreum, from the Natural Environment by :
Download or read book Otolith Techniques for Identifying and Discriminating Between Pond-cultured and Indigenous Walleye, Stizostedion Vitreum, from the Natural Environment written by and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calcified structures offer a mechanism for recognizing specific attributes associated with individual fish through differences in growth patterns and characteristics. The most practical and reliable calcified-structure technique for identifying and separating cultured and indigenous walleye from the natural environment involves detection and quantification of a stress-induced mark in otolith microzonation. This technique provides a reliable method not only for recognizing reductions in growth associated with stress-induced handling and stocking marks, but also for determining the age in days of young walleye. This report describes the general technical aspects of walleye otolith interpretation procedures; discusses the validity of the method, including affecting factors; and makes recommendations for reducing the variance and bias associated with the method, in addition to refining and improving procedures.
Book Synopsis Lake Erie Walleye Population Structure and Stock Discrimination Methods by : Kuan-Yu Chen
Download or read book Lake Erie Walleye Population Structure and Stock Discrimination Methods written by Kuan-Yu Chen and published by . This book was released on 2016 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: Both natal philopatry and deviations from natal philopatry (i.e., straying) can play important roles in persistence of migratory populations. While natal philopatry allows for isolation among local breeding populations and the opportunity for local adaptation, straying may provide rescue effects to declining local populations or colonization of new habitats. However, quantification of natal philopatry can be challenging because the migratory behavior and variability therein itself makes tracking individual movement across years difficult. In turn, a key advance that could help narrow this knowledge gap is the development of “markers” that can reliably discriminate among local populations so that homing and straying behavior can be quantified. The central goal herein is to evaluate existing methods and develop appropriate markers for determining natal origins and measuring connectivity among local spawning populations (or spawning stocks) of walleye (Sander vitreus) in western Lake Erie. Toward this end, we selected two commonly-used natural markers, otolith microchemistry and genetics, to quantify natal philopatry and understand population structure and dynamics of the Lake Erie walleye. While otolith microchemistry records the elemental fingerprints of natal origins of individuals, genetic markers can ascertainpopulation membership of individuals owing to divergence of local populations. We expected that if walleye show strong natal philopatry (revealed by otolith microchemistry), population structure could exist among the spawning stocks because natal philopatry is a potential mechanism that drives reproductive isolation. If so, we could also use genetic markers to determine the source stocks of individuals among the stocks, particularly in which otolith elemental fingerprints are undistinguishable. In this study, we first evaluated whether otolith strontium concentration [Sr] can be used as a natural marker to discriminate individuals spawned between two river-spawning sites using both lab-reared and field-collected walleye larvae (Chapter 2). Next, we applied the marker, otolith [Sr], to quantify natal philopatry of adult walleye among the two river-spawning and one reef-spawning sites (Chapter 3). Toward developing genetic stock discrimination markers, we developed an analytical toolkit that allows us to perform assignment tests and evaluate how different factors (i.e., population differentiation, sample sizes of individual and loci) could influence assignment results (Chapter 4). It can help ascertain population membership of individuals and determine whether our data is sufficient to discriminate among populations. Our findings revealed that spawning walleye had high natal homing rates, with about 98% of individuals returning to the natal site to spawn based on the evidences of otolith microchemistry, but the genetic markers (i.e., thousands of SNP loci) did not have enough discriminatory power to ascertain population membership of individuals. The overall correct assignment rates estimated using sole genetic data were only better than random assignment, even though the rates can be improved by integrating genetic and otolith microchemistry data (Appendix A). These results suggested that the connectivity among the walleye spawning stocks might be weak, but the stocks still reflect a weakly differentiated population and hence we were unable to use the newly developed genetic loci as the stock discrimination marker. Despite its insignificant population structure, strong natal homing behavior indicated that they form reproductively isolated stocks and therefore should be managed as separated stocks.
Book Synopsis Allozyme and Mitochondrial DNA Markers for the Determination of the Genetic Structure of a Walleye (Stizostedion Vitreum) Population Established from Adult Transplants of Three Distinct Stocks by : Peter E. Ihssen
Download or read book Allozyme and Mitochondrial DNA Markers for the Determination of the Genetic Structure of a Walleye (Stizostedion Vitreum) Population Established from Adult Transplants of Three Distinct Stocks written by Peter E. Ihssen and published by . This book was released on 1993 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Differentiation of Walleye (Stizostedion Vitreum) Stocks and Comparison to Their Pond-reared Stocks Using Morphological and Genetic Analyses by : J. G. Brown
Download or read book Differentiation of Walleye (Stizostedion Vitreum) Stocks and Comparison to Their Pond-reared Stocks Using Morphological and Genetic Analyses written by J. G. Brown and published by . This book was released on 1994 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Water Clarity on Walleye (Stizostedion Vitreum) : Habitat and Yield by : Nigel Paul Lester
Download or read book The Effect of Water Clarity on Walleye (Stizostedion Vitreum) : Habitat and Yield written by Nigel Paul Lester and published by Percid Community Synthesis. This book was released on 2002 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structure and Movement of a Spawning Stock of Walleye Stizostedion Vitreum Vitreum (Mitchill) in Georgian Bay by : Guy K. Winterton
Download or read book Structure and Movement of a Spawning Stock of Walleye Stizostedion Vitreum Vitreum (Mitchill) in Georgian Bay written by Guy K. Winterton and published by 1975.. This book was released on 1975 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Tropical Fish Otoliths: Information for Assessment, Management and Ecology by : Bridget S. Green
Download or read book Tropical Fish Otoliths: Information for Assessment, Management and Ecology written by Bridget S. Green and published by Springer Science & Business Media. This book was released on 2009-08-07 with total page 313 pages. Available in PDF, EPUB and Kindle. Book excerpt: Techniques and theory for processing otoliths from tropical marine fish have developed only recently due to an historic misconception that these organisms could not be aged. Otoliths are the most commonly used structures from which daily, seasonal or annual records of a fish’s environmental history are inferred, and are also used as indicators of migration patterns, home range, spatial distribution, stock structure and life history events. A large proportion of projects undertaken on tropical marine organisms involve removal and processing of calcified structures such as otoliths, statoliths or vertebrae to retrieve biological, biochemical or genetic information. Current techniques and principles have evolved rapidly and are under constant modification and these differ among laboratories, and more particularly among species and within life history stages. Tropical fish otoliths: Information for assessment, management and ecology is a comprehensive description of the current status of knowledge about otoliths in the tropics. This book has contributions from leading experts in the field, encompassing a tropical perspective on daily and annual ageing in fish and invertebrates, microchemistry, interpreting otolith microstructure and using it to back-calculate life history events, and includes a treatise on the significance of validating periodicity in otoliths.
Book Synopsis Fish and Fisheries Management in Lakes and Reservoirs by :
Download or read book Fish and Fisheries Management in Lakes and Reservoirs written by and published by . This book was released on 1993 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Management and Ecology of Lake and Reservoir Fisheries by : Ian G. Cowx
Download or read book Management and Ecology of Lake and Reservoir Fisheries written by Ian G. Cowx and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this comprehensive edited book, international experts infisheries management and ecology review and appraise the status oflake and reservoir fisheries, assessment of fisheries yields,trophic ecology, rehabilitation and conservation, including aspecial section on African lakes where so much information of hugerelevance to fisheries managers is now available. Contributions from around the world. Carefully edited by internationally respected editor. Has been generated from acclaimed HIFI Symposium.
Book Synopsis The Histology of Fishes by : Krzysztof Formicki
Download or read book The Histology of Fishes written by Krzysztof Formicki and published by CRC Press. This book was released on 2019-10-08 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is a multi-authored book of 18 chapters comprising the state of the art work of all relevant topics on modern fish histology from 28 authors from ten countries. The topics include Introduction to Histological Techniques, Integument, Fish Skeletal Tissues, Muscular System, Structure and Function of Electric Organs, Digestive System, Glands of the Digestive Tract, Swim Bladder, Kidney, Ovaries and Eggs, Egg Envelopes, Testis Structure, Spermatogenesis, and Spermatozoa in Teleost Fishes, Cardiovascular System and Blood, Immune System of Fish, Gills: Respiration and Ionic-Osmoregulation, Sensory Organs, Morphology and Ecomorphology of the Fish Brain, and Endocrine System. Structural and functional aspects are treated and in a comparative way fish diversity at various taxonomic levels is integrated.
Book Synopsis Lake Erie and Lake St. Clair Handbook by : S. J. Bolsenga
Download or read book Lake Erie and Lake St. Clair Handbook written by S. J. Bolsenga and published by Wayne State University Press. This book was released on 1993 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn about the wonders of Lake Erie and Lake St. Clair in this fascinating and readable book. The most comprehensive reference source available about the lakes, Lake Erie and Lake St. Clair Handbook is an ideal guide for anglers, boaters, swimmers, beach walkers—anyone who uses and enjoys the lakes. The handbook explains, in simple terms, the reasons for the scenic beauty and the natural events that occur in the coastal and offshore waters of Lake Erie and Lake St. Clair, including the St. Clair, Detroit, and Niagara rivers extending from Sarnia, Ontario, to Niagara-on-the-Lake, New York. Individual chapters focus on the land, air, water, and life forms that comprise the natural history and environment of the region—the shoreline topography, wind and weather patterns, water temperature cycles and water level changes, the ecology, and indigenous animal life. Lake Erie and Lake St. Clair Handbook enhances our understanding and appreciation of the lakes and their surroundings by addressing fundamental questions about the Lake Erie region: • how Lake Erie was formed through glacial processes • why daily and seasonal weather patterns occur • causes of the water currents and waves • causes of temperature patterns in the lakes • the location of productive reef features • the species of fish and birds found in the area • the importance of the wetlands • the effect of current and past pollution on the aquatic life in the lakes
Book Synopsis Biology and Control of Aquatic Plants by : Lyn A. Gettys
Download or read book Biology and Control of Aquatic Plants written by Lyn A. Gettys and published by . This book was released on 2009 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biology and Control of Aquatic Plants: A Best Management Practices Handbook is the fourth edition of a handbook produced by the not for profit Aquatic Ecosystem Restoration Foundation (AERF). The mission of the AERF is to support research and development which provides strategies and techniques for the environmentally and scientifically sound management, conservation and restoration of aquatic ecosystems. One way the Foundation accomplishes this mission is by producing this handbook to provide information to the public regarding the benefits of aquatic ecosystem conservation and aquatic plant management. The first, second and third editions of this handbook became some of the most widely consulted references in the aquatic plant management community. This fourth edition has been specifically designed with water resource managers, water management associations, homeowners and customers and operators of aquatic plant management companies and districts in mind. Our goal in preparing this handbook is to provide basic, scientifically sound information to assist decision-makers with their water management questions.
