Download or read book An Evaluation of the Swimming Performance of Two Strains of Hatchery reared Rainbow Trout Oncorhynchus Mykiss written by Bert W. Mulchaey and published by . This book was released on 1994 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Effects of Domestication and Temperature on Growth and Swim Performance in Clonal Lines of Rainbow Trout Oncorhynchus Mykiss written by Kristy Lynn Bellinger and published by . This book was released on 2015 with total page 117 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the western U.S., the Pacific salmonids (Oncorhynchus spp.) are of significant cultural, socioeconomic and ecological importance. However, despite decades of conservation efforts, their continued decline remains a great concern. Two critical factors impacting the sustainability of salmon and steelhead populations in the Pacific Northwest include genetic introgression of captive-reared hatchery fish and climate warming. Although salmonid hatcheries have been recognized as having a valuable role in restoring wild stocks, gene flow from domesticated hatchery fish into wild populations presents obstacles for conservation. Additionally, climate change is predicted to continue to increase stream temperatures in the Pacific Northwest, which is particularly hazardous for cold-water dependent Oncorhynchus spp., as their physiology, behavior, and distribution are crucially linked to temperature. Here these factors were investigated using clonal lines of rainbow trout (Oncorhynchus mykiss) by evaluating phenotypic responses to these two factors in the context of developing management protocols to facilitate their sustained existence.
Download or read book Temperature Genetic and Ration Effects on Juvenile Rainbow Trout Oncorhynchus Mykiss Bioenergetics written by Christopher Alexander Myrick and published by . This book was released on 1998 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Application of Bioenergetics to the Control of Fish Populations Below Reservoirs written by Joseph J. Cech and published by . This book was released on 1995 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Swimming Performance and Changes in Lactic Acid Levels in Two Strains of Rainbow Trout in Response to Forced Exercise written by Carrie Bagatell and published by . This book was released on 1978 with total page 120 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 Effects of Supplemental Oxygen on the Performance of Two Strains of Rainbow Trout Reared at Four Densities written by Greg A. Kindschi and published by . This book was released on 1990 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Oceanic Abstracts written by and published by . This book was released on 1997-10 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Restrictive Regulations on Rainbow Trout and the Performance of Two Strains in the Lake Cumberland Tailwater written by David P. Dreves and published by . This book was released on 2014 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rainbow Trout Growth in Circular Tanks written by James L. Brauhn and published by . This book was released on 1976 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: Prediction equations correlating density of fingerling rainbow trout with growth, yield, and food use efficiency indicated that ammonia nitrogen resulting from high fish densities wes responsible for reductions in all three factors. These predictable density-dependent responses present fish-culturists with alternatives of density selection for evaluation and attainment of specific goals. In examples, fish-culturists, by manipulating density, could achieve rapid growth, produce the maximum weight possible, balance yield with cost, optimize fish quality, or combine two or more of these goals.
Download or read book Evaluation of Hatchery reared Rainbow Trout written by Colorado. Division of Game, Fish, and Parks and published by . This book was released on 1969 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Second Year of the Hatchery and Field Evaluation of Four Strains of Rainbow Trout Salmo Gairdneri written by William P. Dwyer and published by . This book was released on 1980 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Hatchery reared Rainbow Trout written by Donald L. Horak and published by . This book was released on 1966 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Stocking Density Strain Performance and Feeding Method Evaluation of Cage Reared Rainbow Trout Salmo Gairdneri in Eastern South Dakota written by Dale B. Allen and published by . This book was released on 1986 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Experimental Biology written by and published by . This book was released on 2001 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Progressive Fish culturist written by and published by . This book was released on 1949 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Performance Comparison of Rainbow Trout Oncorhynchus Mykiss Under the Specific Environmental Condition in the Highland of Northern Thailand written by Prasan Pornsopin and published by Cuvillier Verlag. This book was released on 2004 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt:
