Download or read book Effect of Temperature Feed Ration and Other Factors on the Growth of Rainbow Trout Oncorhynchus Mykiss Walbaum 1792 Cultured in Finland written by Timo Mäkinen and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effect of Temperature Feed Ration and Other Factors on the Growth of Rainbow Trout Oncorhynchus Mykiss Walbaum 1792 Cultured in Finland written by Timo Makinen and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Finnish Fisheries Research written by and published by . This book was released on 1992 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Aquaculture Europe written by and published by . This book was released on 1996 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Growth Dynamics of Rainbow Trout Oncorhynchus Mykiss Epaxial Muscle written by Anders Kiessling and published by . This book was released on 1990 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Energy and Nitrogen balances in rainbow trout Oncorhynchus mykiss fed at largely varying feeding intensities written by Feyza Sanver and published by Cuvillier Verlag. This book was released on 2004 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Determination of Minimum Feed Ration Required to Produce Optimum Growth in Rainbow Trout Oncorhynchus Mykiss Richardson when Held at Temperatures Less Than 1 Celsius written by Trevor Keough and published by . This book was released on 1991* with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Temperature Ration and Size on Growth of Juvenile Steelhead Trout Salmo Gairdneri written by Wayne A. Wurtsbaugh and published by . This book was released on 1973 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of temperature, temperature fluctuation, and fish size on the growth of juvenile steelhead trout (Salmo gairdneri) were studied in experiments which lasted 10 to 25 days. Groups of fish were fed at ration levels varying from near-starvation to repletion. Decelerating, curvilinear relationships between rates of food consumption and growth were defined in most of the experiments. At ration levels near maintenance, temperatures elevated 3 and 6 C above the seasonal ambient temperatures decreased the growth of the trout. As feeding rate increased, the detrimental effect of temperature on growth was ameliorated. At repletion feeding levels, elevation of temperature up to approximately 17 C increased trout growth rates by increasing the maximum food consumption rates of the fish. With temperature increase from 6.9 to 22.5 C the maintenance rations of the trout increased from 2.2 to 7.4% body weight/day. Large diel temperature fluctuations of 4 and 8 C did not increase growth rates and in some cases decreased growth rates to levels below those of fish kept at constant temperatures. Increase of fish size from 0.58 to 3.36 g decreased the maintenance rations (per gram of tissue) of the trout. This decrease was attributed to decreases in metabolic rate that are associated with increases in fish size. As a consequence of this size-dependent change in metabolic rate, large fish grew faster than small fish at low ration levels. However, at ration levels greater than 9%/day, small fish grew faster than large fish. At the highest ration levels fed (9- 12%/day) gross food conversion efficiency of the large fish began to decline, while efficiencies of small fish continued to increase with increases in ration size. Periodic sampling of steelhead trout in a small coastal stream indicated that growth rates of these wild trout ranged from -0.18 to 1.6%/day. Food consumption rates of the wild trout were estimated to range from 2.0 to 7.6%/day; considerably less than the maximum consumption rates of trout kept in the laboratory. At these food consumption rates it is estimated that increases of stream temperature above the normal seasonal temperatures would decrease the growth rates of wild steelhead trout.

Download or read book Effects of Environmental Temperature on Growth Feed Conversion and Body Composition of Rainbow Trout written by Alan H. Goldschein and published by . This book was released on 1978 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Feeding and Temperature on Acid exposed Juvenile Rainbow Trout oncorhynchus Mykiss Walbaum During a Global Warming Scenario written by Leela Marie D'Cruz and published by . This book was released on 1997 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Constant Temperature and Thermal Shifts on Survival Morphology and Oxygen Consumption in Rainbow Trout Oncorhynchus Mykiss Embryos written by Christopher L. Melendez and published by . This book was released on 2019 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental temperature is a crucial environmental factor that influences many physiological functions in fishes. Rainbow trout (Oncorhynchus mykiss) are a native anadromous species that inhabit a variety of freshwater rivers and lakes and are widely distributed throughout the western portion of the United States. Resident rainbow trout populations occupy interior freshwater environments for the entirety of life. Interior bodies of water are most susceptible to changes in environmental temperatures. Therefore, resident rainbow trout are likely to be impacted by variable and rising temperatures, particularly during embryonic development. Understanding temperature effects during development is likely to provide insight into the overall thermal biology of a species and its persistence in a changing climate. To assess the effect of temperature on development of rainbow trout, we examined phenotypes of hatchery embryos reared in various incubation temperatures (5°C, 10°C, 15°C and 17.5°C). To identify the presence of embryonic developmental plasticity within developmental time points, embryos incubated in 5°C were exposed to either 10°C, 15°C or 17.5°C during gastrulation, organogenesis, system integration or growth windows and a 3-dimensional critical window model was applied. An increase in constant incubation temperature increased oxygen consumption rate (V̇O2), and decreased hatchling survival, mass, yolk size, body length and time to 50% hatch. Thermally shifting embryos into increased temperature during distinct windows of development also reduced survival at hatch, and this was most evident following exposure during organogenesis, which may signify the presence of a critical window for this trait. Likewise, thermally shifting embryos into increased temperature resulted in smaller hatchlings. Although there was an initial increase in V̇ O2 in response to temperature, experiencing thermal shifts during development had no persistent effect on V̇ O2 when measured at hatch at 5°C compared to 5°C constant embryos. Collectively, these results suggest that survival and morphological traits of rainbow trout embryos are most sensitive to increased temperature during organogenesis and system integration, but increased temperature does not appear to have a long-term effect on energy use. Environmental temperature plays a fundamental role in developing aquatic vertebrates. Thus, critical window studies such this performed across species will eventually allow for the identification of commonalities in plasticity between different species in response to variables such as temperature.

Download or read book A Comparison of Three Diets on the Feeding and Growth of Rainbow Trout Oncorhynchus Mykiss Walbaum Under Changing Environmental Conditions written by Steven Mckillop and published by . This book was released on 2003 with total page 352 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 Effects of Temperature Food Availability and Social Dominance on Microhabitat Selection by Steelhead and Rainbow Trout Oncorhynchus Mykiss written by Brian Clifford Spence and published by . This book was released on 1989 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Behavioral Thermoregulation and Growth in Juvenile Rainbow Trout Oncorhynchus Mykiss Fed Different Rations written by James A. Bruce and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Feeding and Growth Rate Tables for Rainbow Trout Oncorhynchus Mykiss Derived from Fitting the Ursin Sparre Growth Model written by and published by . This book was released on 1995 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tables presented in this paper give the maximum ratio required by rainbow trout of a given mean weight and at a specified rearing temperature, and the growth rate that should result from feeding under those conditions. The paper explains the method of deriving the tables, which used a model-based approach and fitted the model to two data sets representative of Canadian and Scandinavian conditions. The paper describes the growth trials conducted for the two data sets and demonstrates how the model reflects both the ration and the growth rates. The fitted model is used to tabulate feeding rates for a number of aquaculture management protocols besides maximum ration. Examples are given of how to use the tables to predict food requirements and the growth resulting from a management strategy. A computer program listing for generating the tables is included.