Download or read book Quantitative Genetics of Body Size and Reproduction in Rainbow Trout Oncorhynchus Mykiss written by Huanmin Zhang and published by . This book was released on 1991 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Genetics of Body Weight and Age and Weight at Sexual Maturity in Individually Tagged Rainbow Trout Oncorhynchus Mykiss written by Patricia A. Crandell and published by . This book was released on 1991 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Genetic Analysis of Body Weight and Egg Production in Rainbow Trout written by Ning Huang and published by . This book was released on 1986 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Temperature and Genetic Effects on Growth Body Shape and Sprint Swim Speed in Rainbow Trout written by Christopher Steven Duke and published by . This book was released on 2021 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultimate phenotype for a given trait results from the combined influences of underlying genetics and environmental factors; predicting how organisms respond to changing environments thus depends on understanding the relative impacts of genes and environmental variables on phenotypes. Here, I explore how changes in one of the most fundamental environmental variables, temperature, impact phenotypes with strong survival implications for rainbow trout (Oncorhynchus mykiss), and explore the underlying genetic architecture associated with phenotypic change in response to temperature. In this dissertation, I begin by comparing responses of growth, size, body shape, and sprint swimming speed phenotypes to rearing at 10° C and 18° C in two geographically disparate, semi-wild clonal strains of O. mykiss (Whale Rock clonal line, from California, and Swanson clonal line, from Alaska), compared to two clonal strains with hatchery origins (Arlee and Hot Creek clonal lines). I find that Whale Rock and Swanson overall show the greatest between-line differences in these phenotypes, and vary notably in the nature and magnitude of their plastic response to temperature. I then explore the influence of 10° C and 18° C rearing temperature on the location of body fins that potentially influence sprint swimming speeds (dorsal fin, anal fin, and pelvic fins) at 32 and 35 weeks of age in Whale Rock and Swanson clonal lines, with Hot Creek as a hatchery-origin clonal line for comparison. I find complex patterns of variation in fin location at both ages, both within clonal line at different temperatures and between clonal lines within the same temperature. Of the fin locations measured, only one was found to significantly influence sprint swimming speed, which was the distance between the operculum and the most anterior margin of the anal fin. Whale Rock and Swanson showed distinctly disparate differences in fin metrics, again suggesting their suitability for exploring genetic architecture of these phenotypes. Finally, I use a quantitative genetic approach to identify quantitative trait loci (QTL), finding evidence for significant and suggestive QTL influencing the measured phenotypes, as well as evidence for temperature-specific QTL.
Download or read book GENETIC COVARIATION BETWEEN EMBRYONIC DEVELOPMENTAL RATE AND PRECOCIOUS MATURATION IN RAINBOW TROUT ONCORHYNCHUS MYKISS written by Colin Richardson and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Analysis of Growth and Reproductive Traits in Rainbow Trout written by Guosheng Su and published by . This book was released on 1996 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Preservation of eggs and genetic sex discrimination in rainbow trout Oncorhynchus mykiss written by Marina Komrakova and published by Cuvillier Verlag. This book was released on 2006 with total page 192 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 2009-10 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nonanadromous Life History Diversity of Rainbow Trout Oncorhynchus Mykiss written by Martin C. Arostegui and published by . This book was released on 2019 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rainbow trout (Oncorhynchus mykiss) is a salmonid species, native to Pacific Ocean drainages in North America and eastern Russia, which exhibits fluvial (stream-resident), adfluvial (lake-migrant), and anadromous (ocean-migrant) ecotypes. The differentiation of fluvial and anadromous individuals in sympatry is well-studied, whereas comparatively little research has focused on the adfluvial form and its distinction from fluvial individuals in sympatry. Thus, the purpose of this dissertation was to investigate the ecological, genetic, and phenotypic diversity of nonanadromous rainbow trout in a natural stream-lake system to better understand the differentiation of fluvial and adfluvial individuals in sympatry, the basis of residency versus migration in this species, and the role of lakes in salmonid diversification. Rainbow trout were sampled in the lake (thus, by definition, adfluvial) and in several tributary streams (where adfluvial and fluvial individuals may co-occur), and were examined for a variety of features to develop a holistic understanding of the behavior, ecology, and evolution of these life history pathways. Stomach contents and stable isotopes revealed disparate trophic ecology among rainbow trout in connected stream and lake habitats, suggesting both an ontogenetic shift in the diet of adfluvial fish as well as divergence in diet between adfluvial and fluvial ecotypes. Rainbow trout in streams fed primarily on aquatic insects, while those in the lake largely consumed snails and amphipods; however, partial trophic convergence among trout in these two habitats occurred when they incorporated the marine nutrient subsidy of spawning sockeye salmon eggs. Stable isotope data suggested that the minimum size of migration from stream to lake habitat by adfluvial fish was ~150 mm fork length, suggesting a juvenile stream-rearing period of a year or more prior to lake entry. Dietary niche comparisons with sympatric Salvelinus species suggested a greater degree of dietary overlap between rainbow trout and Dolly Varden (S. malma) in streams than between rainbow trout and Arctic char (S. alpinus) in the lake, which may increase the relative fitness benefits of migration over residency for rainbow trout. Restriction site-associated DNA sequencing revealed an association between habitat type (stream or lake) and a chromosomal inversion in the rainbow trout genome as well as numerous single nucleotide polymorphisms, supporting the genetic divergence of adfluvial and fluvial ecotypes in sympatry. Rainbow trout in streams were nearly fixed for the rearranged haplotype of the Omy05 inversion, whereas trout in the lake exhibited a markedly higher frequency of the ancestral, anadromy-associated haplotype. The functions of outlier genes with nonsynonymous mutations among stream- and lake-caught trout paralleled those documented in studies of fluvial and anadromous O. mykiss, highlighting the migratory nature of the adfluvial ecotype even though it is nonanadromous. Structure was present at both non-outlier and outlier loci among and within streams supporting populations nearly fixed for the rearranged Omy05 haplotype (i.e., with a genetic predisposition for stream-residency), highlighting the roles of local adaptation and genetic drift via spatial isolation in population divergence. Assessment of lateral coloration patterns and multivariate analyses of body shape of rainbow trout from stream and lake habitats over a range of body sizes revealed ontogenetic and ecotypic variation in coloration and morphology. Color differences among trout of different size classes and habitats indicated ecotype-specific pathways resulting in different terminal coloration patterns; banded parr in streams transitioned to either a silver coloration suited to pelagic waters in the lake (when adfluvial) or bronze coloration suited to confined cover in streams (when fluvial). The morphology of lake-caught rainbow trout was distinct from that of stream-caught trout, and their morphological differentiation exhibited many shared but some unique patterns compared to sympatric Dolly Varden in streams and Arctic char in the lake. Patterns of morphological variation in rainbow trout among and within habitats suggested the presence of partial migration, in which both fluvial and adfluvial individuals are produced from the same population. A review of the spawning behaviors, rearing strategies, and trophic polymorphisms in lakes among 16 species of salmonids from the genera Oncorhynchus, Salmo, and Salvelinus identified a negative association between the extent of reliance on lakes and the degree of anadromy. Oncorhynchus exhibits the least lake reliance, Salmo an intermediate level, and Salvelinus the greatest; opposite of the anadromy spectrum identified in previous studies. Lakes support life history forms, reproductive ecotypes, and trophic morphs unique to lacustrine habitat, and also support anadromous and fluvial salmonids by providing spawning, rearing, overwintering, and/or summer refuge habitat. Adfluvial and anadromous salmonids exhibit similar migration-associated traits and behaviors including the parr-smolt transformation, sex-biased partial migration, and the presence of precocious 'jack' males.
Download or read book Genetic Conservation of Salmonid Fishes written by Joseph G. Cloud and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the human population increases and nations become more industrialized, the habitat and water quality required for the survival of fish continues to decline. In addition to these environmental factors, fish populations are directly or potentially affected by harvesting, enhancement programs and introgression with hatchery-propagated or transgenic fish. To our knowledge no other scientific meeting has been assembled to consider the breadth of the problem, to review the technology that is presently available for the preservation of the germ plasm of salmonid stocks and to identify the scientific advances that are required to overcome the problems. Because many salmonids have spawning grounds within the confines of a specific region or county but will spend a large portion of their life cycle within the territorial waters of other countries or in the open ocean, the preservation of unique genes or gene pools in these animals requires international cooperation. This scientific meeting has provided a forum in which to discuss the problems, evaluate the present methods or technology for addressing the problems and suggest new directions or innovations that need to be implemented. During this meeting we limited our discussion to salmonid fishes. However, the general conclusions about the factors that affect the population dynamics of fish stocks and the technical aspects concerning the preservation of germ plasm will be applicable to other fish species.
Download or read book Quantitative and Molecular Genetic Analysis of Embryonic Development Rate in Rainbow Trout Oncorhynchus Mykiss microform written by Robison, Barrie Dennis and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1999 with total page 170 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 Encyclopedia of Reproduction written by and published by Academic Press. This book was released on 2018-06-29 with total page 3905 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encyclopedia of Reproduction, Second Edition, Six Volume Set comprehensively reviews biology and abnormalities, also covering the most common diseases in humans, such as prostate and breast cancer, as well as normal developmental biology, including embryogenesis, gestation, birth and puberty. Each article provides a comprehensive overview of the selected topic to inform a broad spectrum of readers, from advanced undergraduate students, to research professionals. Chapters also explore the latest advances in cloning, stem cells, endocrinology, clinical reproductive medicine and genomics. As reproductive health is a fundamental component of an individual’s overall health status and a central determinant of quality of life, this book provides the most extensive and authoritative reference within the field. Provides a one-stop shop for information on reproduction that is not available elsewhere Includes extensive coverage of the full range of topics, from basic, to clinical considerations, including evolutionary advances in molecular, cellular, developmental and clinical sciences Includes multimedia and interactive teaching tools, such as downloadable PowerPoint slides, video content and interactive elements, such as the Virtual Microscope
Download or read book The Roles of Relative Size and Genetics in Determining Early Dominance Status in Juvenile Rainbow Trout Oncorhynchus Mykiss written by Shelley Lee Christina Lang and published by . This book was released on 1996 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Roles of Relative Size and Genetics in Determining Early Dominance Status in Juvenile Rainbow Trout Oncorhynchus Mykiss written by Shelley Lee Christina Lang and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Genetic Architecture of Spawning Date and the Associations Among Life History Traits and Growth in Rainbow Trout Oncorhynchus Mykiss written by Melissa Allen and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Roles of Relative Size and Genetics in Determining Early Dominance Status in Juvenile Rainbow Trout Oncorhynchus Mykiss written by and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
