Download or read book Lethal Temperatures for Coastal Cutthroat Trout Under Fluctuating Temperature Regimes written by James T. Golden and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Immediate Effects of Logging on the Freshwater Environment of Salmonids written by James T. Golden and published by . This book was released on 1976 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Effects of Fluctuating Temperatures on the Lethal Tolerance Limits of Coastal Cutthroat Trout Salmo Clarki Clarki written by James Thomas Golden and published by . This book was released on 1978 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the Cooperative Unit Program Fishery written by and published by . This book was released on 1975 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Remote Sensing of Stream Temperature and Groundwater Discharge written by Richard S. Deitchman and published by . This book was released on 2009 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Research Units Fishery and Wildlife Annual Report written by U.S. Fish and Wildlife Service. Division of Cooperative Research and published by . This book was released on 1974 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cooperative Research Units Fishery and Wildife Annual Report written by U. S. Fish and Wildlife Service. Division of Cooperative Research and published by . This book was released on 1976 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Federal Aid Progress Reports written by and published by . This book was released on 1976 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Species Profiles written by and published by . This book was released on 1989 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Temperature on Survival and Growth of Westslope Cutthroat Trout and Rainbow Trout written by Elizabeth Ann Bear and published by . This book was released on 2005 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: Westslope cutthroat trout Oncorhynchus clarkii lewisi have declined throughout their native range in the Northern Rockies and were considered for listing under the federal Endangered Species Act. Water temperature is widely regarded as playing a key role in determining their persistence, but specific lethal levels and thermal optima for this cutthroat trout subspecies had not been precisely defined. This laboratory study used the acclimated chronic exposure method to determine tolerances and thermal optima of westslope cutthroat trout and rainbow trout Oncorhynchus mykiss, a potential nonnative competitor now occupying much of the former range of westslope cutthroat trout. Rainbow trout had a distinct survival advantage over westslope cutthroat trout at warmer temperatures. The ultimate upper incipient lethal temperature (temperature at which 50% of the population survives for 60-d) of rainbow trout (24.3°C; 95% CI, 24.0-24.7°C) was 4.7°C higher than that of westslope cutthroat trout (19.6°C; 95% CI, 19.1-19.9°C). In contrast, the optimum growth temperature for westslope cutthroat trout (13.6°C; 95% CI, 10.3-17.0°C) over the 60-d test period was very similar to that of rainbow trout (13.1°C; 95% CI, 6.8-18.2°C), although rainbow trout grew better over a wider range and at higher temperatures than did westslope cutthroat trout. The upper lethal and optimum growth temperatures for westslope cutthroat trout are in the lower range among most salmonids. The higher upper temperature tolerance of rainbow trout and its greater ability for growth at warmer temperatures may account for its increased occurrence at lower elevations than cutthroat trout. Water quality standards setting maximum daily temperatures from 13-15°C, near the optimum growth temperature, would ensure suitable thermal habitat to maintain the persistence of westslope cutthroat trout populations. In addition, survival and growth parameters indicated in this study can be used with stream temperature modeling to predict suitable habitat for westslope cutthroat trout, as they may be particularly susceptible to increases in stream temperature associated with climate change. Such predictions of habitat suitability will be vital in prioritizing conservation efforts with respect to reintroduction and translocation of westslope cutthroat trout.

Download or read book Effects of Sub lethal Temperature on Lahontan Cutthroat Trout written by Michael H. Meeuwig and published by . This book was released on 2000 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book National Agricultural Library Catalog written by National Agricultural Library (U.S.) and published by . This book was released on 1979 with total page 610 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal Controls of Yellowstone Cutthroat Trout and Invasive Fishes Under Climate Change written by Robert Al-Chokhachy and published by . This book was released on 2013 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt: We combine large observed data sets and dynamically downscaled climate data to explore historic and future (2050-2069) stream temperature changes over the topographically diverse Greater Yellowstone Ecosystem (elevation range = 824-4017 m). We link future stream temperatures with fish growth models to investigate how changing thermal regimes could influence the future distribution and persistence of native Yellowstone cutthroat trout (YCT) and competing invasive species. We find that stream temperatures during the recent decade (2000-2009) surpass the anomalously warm period of the 1930s. Climate simulations indicate air temperatures will warm by 1 °C to >3 °C over the Greater Yellowstone by mid-21st century, resulting in concomitant increases in 2050-2069 peak stream temperatures and protracted periods of warming from May to September (MJJAS). Projected changes in thermal regimes during the MJJAS growing season modify the trajectories of daily growth rates at all elevations with pronounced growth during early and late summer. For high-elevation populations, we find considerable increases in fish body mass attributable both to warming of cold-water temperatures and to extended growing seasons. During peak July to August warming, mid-21st century temperatures will cause periods of increased thermal stress, rendering some low-elevation streams less suitable for YCT. The majority (80%) of sites currently inhabited by YCT, however, display minimal loss (

Download or read book Biennial Report written by Oregon. Department of Fish and Wildlife and published by . This book was released on 1975 with total page 132 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 2013 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Resources Research Catalog written by United States. Office of Water Research and Technology and published by . This book was released on 1974 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Beginning with vol. 9, only new and continuing but modified projects are listed. Vols. 8- should be kept as a record of continuing but unchanged projects.

Download or read book Channel Improvements Columbia and Lower Willamette River Federal Navigation Channel OR WA written by and published by . This book was released on 1999 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt: