Download or read book Hooking Mortality of Trophy sized Wild Brook Trout Caught on Artificial Lures written by Andrew J. Nuhfer and published by . This book was released on 1989 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 The Progressive Fish culturist written by and published by . This book was released on 1978 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 The Progressive Fish Culturist written by U.S. Fish and Wildlife Service and published by . This book was released on 1966 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book General Technical Report RM written by and published by . This book was released on 1991 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Project Technical Report for Fishery and Aquatic Management Program Yellowstone National Park written by and published by . This book was released on 1987 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the 1991 Northeastern Recreation Research Symposium written by Gail A. Vander Stoep and published by . This book was released on 1992 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Sea run Cutthroat Trout written by James D. Hall and published by . This book was released on 1997 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Navajo Reservoir Operations Navajo Unit San Juan River written by and published by . This book was released on 2006 with total page 368 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 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 The Palgrave Handbook of Practical Animal Ethics written by Andrew Linzey and published by Springer. This book was released on 2018-06-26 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This handbook provides an in-depth examination of the practical and theoretical issues within the emerging field of animal ethics. Leading experts from around the globe offer insights into cutting edge topics as diverse as killing for food, religious slaughter, animal companions, aquariums, genetic manipulation, hunting for sport and bullfighting. Including contributions from Lisa Johnson on the themes of human dominance, Thomas White on the ethics of captivity, Mark Bernstein on the ethics of killing and Kay Peggs on the causation of suffering, this handbook offers an authoritative reference work for contemporary applied animal ethics. Progressive in approach, the authors explore the challenges that animal ethics poses both conceptually and practically to traditional understandings of human–animal relations. Key Features: · Structured in four parts to examine the ethics of control, the ethics of captivity, the ethics of killing and the ethics of causing suffering · Interdisciplinary approach including philosophical, historical, scientific, legal, anthropological, religious, psychological and sociological perspectives · Focussed treatment of practical issues such as animals in farming, zoos and animal experimentation The Palgrave Handbook of Practical Animal Ethics is an essential resource for those with an interest in the ethics of modern-day treatment of animals as well as scholars, researchers and advanced students in zoology, philosophy, anthropology, religious studies and sociology.

Download or read book Rattlesnake Creek Research Project 1986 Final Report Montana USA written by Gary David Blount and published by [email protected]. This book was released on with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Normal 0 The Rattlesnake Creek fishery is unique due to its closure to fishing 45-years ago. Since that time, Rattlesnake Creek has been protected because it supplied Missoula, Montana with municipal water. In 1983, a 25-kilometer section of Rattlesnake Creek above the confluence of Beeskove Creek was opened to catch and release fishing; approximately 12-km immediately below this section remains closed. This study was designed to document the dynamics of an unfished trout population and their response to catch and release angling. The results will provide a point of reference for comparing trout populations in pristine systems with those in heavily impacted and managed streams. Until we understand the structure of undisturbed fisheries and their habitats, our present protection and enhancement efforts will lack both a rational context and effective direction. Objectives for the 1986 study were: 1. Document trout population abundance, size, and species composition, in two unfished sections and two fished sections of Rattlesnake Creek. 2. Evaluate the effects of catch and release fishing on the trout population in Rattlesnake Creek. 3. Document and compare changes in angler catch and pressure on Rattlesnake Creek upstream from Beeskove Creek. 4. Identify early spring and late fall movement patterns of Rattlesnake Creek trout populations. 5. Describe winter habitat used by Westslope Cutthroat Trout. Objectives This one year study was designed to collect baseline data necessary to evaluate the effects of catch and release fishing above Beeskove Creek and the population dynamics of an unfished population of Westslope Cutthroat Trout below Beeskove Creek in western Montana. The objectives for the first year were: 1. Determine wild trout species composition, distribution, size, abundance, and age in four sections of Rattlesnake Creek. 2. Document angler catch and pressure on Rattlesnake Creek upstream of Beeskove Creek. 3. Four sections of Rattlesnake Creek were studied from March, 1985 through February, 1987 to document species composition, distribution, size, and abundance of trout. The effects of catch and release fishing seasonal and diel habitat use were also evaluated. 4. Westslope Cutthroat Trout, Bull Trout, and Brook Trout were present in Rattlesnake Creek. Size and abundance of Westslope Cutthroat Trout and Bull Trout were large compared to other small, relatively infertile streams in western Montana. Catch and release angling (300 anglers per year) had no measurable effect on size and abundance of trout in Rattlesnake Creek. Twenty-one percent of all Westslope Cutthroat Trout tagged were recaptured and 68% of the Westslope Cutthroat Trout over 400-millimeters were caught and released. These and other data collected on Rattlesnake Creek indicate the extreme vulnerability of Westslope Cutthroat Trout to angling. 5. Diel and seasonal changes in Westslope Cutthroat Trout behavior and habitat use were documented. Westslope Cutthroat Trout behavior during late spring days was related to spawning. Feeding was the dominant activity during summer days and cover seeking dominated during winter days. Diel shifts were most noticeable from winter days to winter nights. Twice as many trout were seen at night under harsh winter conditions. Winter night counts correlated well with the summer day counts. Study Area The upper Rattlesnake Creek drainage is located in west central Montana, 8.3-kilometers (5.6-miles.) north of Missoula. The drainage encompasses approximately 21,053 ha (81.3-miles²), and is within the Lolo National Forest. Rattlesnake Creek originates on the flanks of McLeod and Triangle peaks, flowing south-southwest to its confluence with the Clark Fork of the Columbia River at Missoula. The creek descends 1,613-meters (5,291.0-ft) in 37.0-kilometers and has a mean gradient of 4.3%, with a gradient of 1.75% in the study sections (USFS-Lolo, 1976). There are nine perennial tributaries to Rattlesnake Creek. Wrangle, Lake, and High Falls creeks originate from glacial lakes while Porcupine, East Fork of Rattlesnake, Beeskove, Pilcher, Fraser and Spring Creeks originate from springs. More than 40 lakes are located in the upper drainage. The geologic parent material in the area includes argillite, quartzite, and limestone of the Precambrian Belt series as well as Cambrian shales and limestones (Nelson & Dobell 1961). The watershed is characterized by relatively high peak discharge per unit area (Van der Poel 1979). The general topography of the drainage is steep and mountainous. Vegetation varies from a spruce-fir forest in the upper drainage to an open pine-larch forest below Franklin Bridge. Cottonwood trees and shrubs are found in the lower riparian zone and occasionally the valley bottom opens up to small grassy meadows. Rattlesnake Creek is a 3rd order stream with a rubble-gravel bottom and an average annual discharge of 45 to 50-cubic feet per second. The Rattlesnake Creek drainage is managed primarily as a watershed and secondarily as a recreational area (USFS Management Plan 1984). Although Rattlesnake Creek is not currently used as a municipal water supply, plans of building a filtration plant and again using the water municipally are being discussed. A water company dam located 4.0-kilometers upstream from the mouth of Rattlesnake Creek would be the most probable site for a filtration plant. The 12.2-meters high dam prevents all upstream fish migration from the Clark Fork River.

Download or read book Sport Fishery Abstracts written by and published by . This book was released on 1989 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conference on Science in the National Parks Proceedings Fisheries and coastal wetlands research written by and published by . This book was released on 1987 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings written by and published by . This book was released on 1987 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: