Download or read book Ecology of Yellowstone Cutthroat Trout and an Evaluation of Potential Effects of Angler Wading in the Yellowstone River written by Barbara Marie Kelly and published by . This book was released on 1993 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cutthroat written by Pat Trotter and published by Univ of California Press. This book was released on 2008 with total page 572 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cutthroat tells the full story of the genuine native trout of the American West. This new edition, thoroughly revised and updated after 20 years, synthesizes what is currently known about one of our most interesting and colorful fishes, includes much new information on its biology and ecology, asks how it has fared in the last century, and looks toward its future. In a passionate and accessibly written narrative, Patrick Trotter, fly fisher, environmental advocate, and science consultant, details the evolution, natural history, and conservation of each of the cutthroat's races and incorporates more personal reflections on the ecology and environmental history of the West's river ecosystems. The bibliography now includes what may be the most comprehensive and complete set of references available anywhere on the cutthroat trout. Written for anglers, nature lovers, environmentalists, and students, and featuring vibrant original illustrations by Joseph Tomelleri, this is an essential reference for anyone who wants to learn more about this remarkable, beautiful, and fragile western native.
Download or read book Conservation Assessment for Inland Cutthroat Trout written by and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book General Technical Report PNW GTR written by and published by . This book was released on 1997 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mortality Studies on Cutthroat Trout in Yellowstone Lake by Orville P Ball and Oliver B Cope written by Orville P. Ball and published by . This book was released on 1961 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a study of the Yellowstone Lake cutthroat trout, Salmo clarki lewisi, by the U.S. Fish and Wildlife Service, effects of environment on mortality of eggs, immature fish, spawners, and postspawners were measured for various components of the population in Yellowstone Lake (Wyoming). Five methods for estimating mortality of adults on spawning runs are described, with counting and tagging as the principal procedures. Of the total number of eggs deposited in the gravel, 60 to 75 percent died before hatching, and 99.6 percent had died by the time the fingerlings enetered Yellowstone Lake. In Arnica Creek runs, 48.6 percent died in the stream, 40.2 died later in the lake of natural causes, 7.6 were taken by fishermen, and 3.6 percent were alive 2 years later. The white pelican is a serious predator on cutthroat trout in Yellowstone Lake. From 1949 to 1953 fishermen caught 11.6 percent of the catchable trout available to them. Migrations of adult fish in Yellowstone Lake were traced through tagging.
Download or read book General Technical Report RM written by and published by . This book was released on 1995 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book An Assessment of Ecosystem Components in the Interior Columbia Basin and Portions of the Klamath and Great Basins written by and published by . This book was released on 1997 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fisheries Review written by and published by . This book was released on 1993 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Yellowstone Fishes written by John D. Varley and published by Stackpole Books. This book was released on 1998 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: This richly illustrated and thoroughly researched reference covers all the species of fish and every aspect of their existence in one of the most famous sport fisheries in the world. This edition includes new material on the impact of forest fires and the introduction of non-native species; an expanded chapter on angling; and an assessment of recent management policies. Full color plates and historic b&w photos.
Download or read book Dynamics of Yellowstone Cutthroat Trout and Lake Trout in the Yellowstone Lake Ecosystem written by John Michael Syslo and published by . This book was released on 2015 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt: The introduction of lake trout Salvelinus namaycush into Yellowstone Lake preceded the collapse of the native Yellowstone cutthroat trout Oncorhynchus clarkii bouvieri population. As a system with a simple fish assemblage and several long-term data sets, Yellowstone Lake provided a unique opportunity to evaluate the ecology of a native salmonid in the presence of a non-native salmonid population undergoing suppression in a large natural lake. Diet data for Yellowstone cutthroat trout and lake trout were evaluated at varying densities to determine the effects of density on diet composition. Temporal diet shifts from 1996-1999 to 2011-2013 were likely caused by limitation of prey fish for lake trout. Diets, stable isotopes, and depth-related patterns in CPUE indicated lake trout> 300 mm consumed primarily amphipods, making them trophically similar to Yellowstone cutthroat trout from during 2011-2013. A lake trout removal program was initiated during 1995 to reduce predation on Yellowstone cutthroat trout. Abundance and fishing mortality were estimated for lake trout from 1998 through 2013 and Yellowstone cutthroat trout from 1986 through 2013. Density-dependence was evaluated by examining individual growth, weight, maturity, and pre-recruit survival as a function of abundance. In addition, a simulation model was developed for the lake trout- Yellowstone cutthroat trout system to determine the probability of Yellowstone cutthroat trout abundance persisting at performance metrics given potential reductions in lake trout abundance. Estimates of Yellowstone cutthroat trout abundance varied 5-fold and lake trout abundance varied 6-fold. Yellowstone cutthroat trout weight and pre-recruit survival decreased with increasing Yellowstone cutthroat trout abundance; however, individual growth and maturity were not related to abundance. Lake trout population metrics did not vary with lake trout abundance. Simulation model results were variable because of uncertainty in lake trout pre-recruit survival. Conservative estimates for required lake trout reductions were> 97% of 2013 abundance for a> 70% probability of Yellowstone cutthroat trout persistence at the performance metrics outlined in the Native Fish Conservation Plan. Lake trout removal will likely reduce lake trout abundance and result in Yellowstone cutthroat trout recovery if the amount of fishing effort exerted in 2013 is maintained for at least 15 years.
Download or read book Equilibrium Yield and Management of Cutthroat Trout in Yellowstone Lake written by Norman Gustaf Benson and published by . This book was released on 1963 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Equilibrium yield of the cutthroat trout, Salmo clarki lewisi Girard, in Yellowstone Lake, Wyo., is determined from data on catch and spawning runs from 1945 to 1961. Changes in growth rate, spawning runs, mortality rates, and year-class strength are related to differences in total catch. Three stages of exploitation of the stock are defined and the maximum safe catch or equilibrium yield is estimated at 325,000 trout. Management of the sport fishery according to equilibrium yield is discussed with reference to regulations, distribution of fishing pressure, planting, and interspecific competition. The Yellowstone River fishery is treated briefly.
Download or read book Conservation Assessment for Inland Cutthroat Trout written by Michael K. Young and published by . This book was released on 1995 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt: Westslope Cutthroat Trout. Colorado River Cutthroat Trout. Rio Grande Cutthroat Trout. Bonneville Cutthroat Trout. Yellowstone Cutthroat Trout. Synthesis of Management and research considerations.
Download or read book Catching Yellowstone s Wild Trout written by Chris Hunt and published by Arcadia Publishing. This book was released on 2019-06-17 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: This history and guide to the fly-fishing waters of Yellowstone National Park is a loving homage to the region’s iconic wild trout. Yellowstone National Park is home to some of the most storied destinations in the history of fly fishing. Casting in the Firehole River is like going back in time to when bison roamed nearly every meadow in the West. Restored to their natal streams after near extinction, native Arctic grayling can once again be plucked from icy water at the foot of breathtaking waterfalls. Meanwhile, a daylong hike into true wild country rewards an angler with a chance to catch trophy native cutthroat trout on a lonely mountain lake. In Catching Yellowstone’s Wild Trout, local journalist and experienced angler Chris Hunt explores the rich history of these beloved and bountiful waters.
Download or read book An Evaluation of Yellowstone Cutthroat Trout Production in Three Tributaries of the Yellowstone River Montana written by Patrick Arther Byorth and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The range and abundance of Yellowstone cutthroat trout (Oncorhynchus clarki bouveri) has decreased due to competition and hybridization with introduced species, susceptibility to harvest, and the loss of spawning sites, especially due to irrigation withdrawals. Fry production, the effects of dewatering on fry productions, and instream flows suitable for fry production were evaluated in three tributaries of the Yellowstone River during 1988, a drought year, and 1989, a year of normal precipitation. Cedar Creek produced the greatest number of cutthroat trout fry (2,000 and 14,000 ub 1988 and 1989, respectively), although 13-20% of the potential fry production was lost due to dewatering of redds. A minimum instream flow of 0.035 m3/s would have prevented this loss. Tom Miner Creek was the second most productive spawning tributary, producing an estimated 700 and 3,400 fry in 1988 and 1989, respectively. Fifteen to 50% of production was lost due to dewatering of redds caused by natural fluctuations in streamflow, not by irrigation withdrawals. High sediment loads also may have limited fry production in this stream. Big Creek produced the fewest fry because irrigation withdrawals caused severe dewatering in the lower 1600 km. A discharge of 0.320 m3/s would have protected redds and should restore cutthroat trout fry production in Big Creek.
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 An Evaluation of Yellowstone Cutthroat Trout Production in Three Tributaries of Yellowstone River Montana written by Patrick Arthur Byorth and published by . This book was released on 1990 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecology and Population Abundance of Cutthroat Trout in the Yellowstone River Yellowstone National Park written by Jack S. Griffith and published by . This book was released on 1982 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
