Download or read book Interstream Movements of Coastal Cutthroat Trout Oncorhynchus Clarki Clarki in the Clearwater River Jefferson County Washington written by Ann Marie Garrett and published by . This book was released on 1998 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wildlife habitat Relationships in Oregon and Washington written by David H. Johnson and published by . This book was released on 2001 with total page 764 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides information about the terrestrial, freshwater, and marine habitats of Oregon and Washington and the wildlife that depend upon them; it also supports broader and more consistent conservation planning, management, and research. The 27 chapters identify 593 wildlife species, define some 300 wildlife terms, profile wildlife communities, review introduced and extirpated species and species at risk, and discuss management approaches. The volume includes color and bandw photographs, maps, diagrams, and illustrations; and the accompanying CD-ROM contains additional wildlife data (60,000 records), maps, and seven matrixes that link wildlife species with their respective habitat types. Johnson is a wildlife biologist, engineer, and habitat scientist; and O'Neill is director of the Northwest Habitat Institute; they worked together on this publication project as its managing directors. Annotation copyrighted by Book News Inc., Portland, OR
Download or read book Movements of Coastal Cutthroat Trout Oncorhynchus Clarki Clarki in the Lower Columbia River Tributary Mainstem and Estuary Use written by U.S. Fish and Wildlife Service. Columbia River Fisheries Program Office and published by . This book was released on 2008 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Logging on Resident and Searun Populations of Cutthroat Trout Salmo Clarki written by Jeffrey Gard Osborn and published by . This book was released on 1980 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Logging on Resident and Searun Populations of Cutthroat Trout Salmo Clarki in Small Tributaries of the Clearwater River Jefferson County Washington 1978 1979 written by Jeffrey G. Osborn and published by . This book was released on 1980 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Movement Distribution and Resource Use of Westslope Cutthroat Trout in the South Fork Clearwater River Basin written by Marika E. Dobos and published by . This book was released on 2015 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although many Westslope Cutthroat Trout Oncorhynchus clarki lewisi populations in Idaho are robust and stable, others are depressed. In some systems, such as the South Fork Clearwater River (SFCR) system, environmental conditions (e.g., summer temperatures) are hypothesized to limit populations of Westslope Cutthroat Trout. Radiotelemetry and snorkeling methods were used to describe movement, distribution, and habitat use of Westslope Cutthroat Trout in the SFCR in 2013 and 2014. Sixty-six tags were implanted into fish (155–405 mm). Sedentary and mobile summer movement patterns of Westslope Cutthroat Trout were observed. Sixty-two sites were snorkeled along the mainstem SFCR from 5–14 August 2014 to better describe the distribution of Westslope Cutthroat Trout. Twenty-three Westslope Cutthroat Trout were observed in 12 sites and at low density (mean ± SD; 0.0003 ± 0.0008 fish/m2 ). Results indicate that summer temperature was the primary factor limiting the distribution of Westslope Cutthroat Trout in the system.
Download or read book Movement Patterns and Feeding Ecology of Cutthroat Trout Oncorhynchus Clarki Clarki in Lake Washington written by Gretchen M. Nowak and published by . This book was released on 2000 with total page 150 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 Age Growth and Instream Movement of Olympic Peninsula Coastal Cutthroat Trout Salmo Clarki Clarki written by Howard Jack Fuss and published by . This book was released on 1982 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coastal Cutthroat Trout Oncorhynchus Clarki Clarki Diet in South Puget Sound Washington 1999 2002 written by Joseph M. Jauquet and published by . This book was released on 2002 with total page 158 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Structure of Coastal Cutthroat Trout Oncorhynchus Clarki Clarki in the Muck Creek Basin Washington written by Christian E. Zimmerman and published by . This book was released on 1995 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: The relationship of coastal cutthroat trout (Oncorhynchus clarki clarki) populations in the Muck Creek basin, a 238 km2 southern Puget Sound stream basin in western Washington, was examined using starch gel electrophoresis and meristic analysis. Coastal cutthroat trout were collected from six sites throughout the basin including tributaries, portions of the mainstem, and a lake. Four sites contained only resident trout, the lower mainstem contained resident and anadromous trout, and the lake contained only mature anadromous trout based on size and appearance. Patterns of allelic and meristic variation suggest a significant structuring and separation of coastal cutthroat trout populations in the basin. The lake population was distinguished from the other populations by significant differences in allele frequencies and meristic characters. The other sites grouped more closely together with significant variation among and between sites meristically and at several loci.
Download or read book The Coastal Cutthroat Trout Oncorhynchus Clarki Clarki written by John Keim Wenburg and published by . This book was released on 1998 with total page 552 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 1996 with total page 202 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 Habitat Use Movement and Life History Variation of Coastal Cutthroat Trout Oncorhynchus Clarkii Clarkii in the Salmon River Estuary Oregon written by Lisa K. Krentz and published by . This book was released on 2008 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Anadromous coastal cutthroat trout Oncorhynchus clarkii clarkii may be highly dependent on estuaries, passing through them multiple times during their lifetime. However, few studies have investigated estuarine use by coastal cutthroat trout and it is often thought that estuaries serve primarily as migration corridors rather than rearing areas. We used both PIT tag and acoustic tracking techniques in 2002 and 2003 to investigate habitat use, movement, and life history variation within the population of coastal cutthroat trout in the Salmon River estuary, Oregon. Evidence of site fidelity was observed in both the PIT-tagged and acoustically tagged fish, with 70% of PIT tagged fish being recaptured at their previous capture site and most acoustically tagged fish residing in one location for at least 25 days. Ninety percent of fish relocated 1.7 km upstream or downstream showed directional movement toward the original site of capture, and half of those eventually took up residence there. Cutthroat trout used main channel sites more frequently than marsh channel sites, and deeper sites more frequently than shallower sites. Contrary to published results for most other coastal populations, Salmon River cutthroat trout rear in the estuary for much of the year. We identified two main life history types: an "ocean migrant" form that migrates rapidly through the estuary and out to sea, and an "estuarine resident" form that resides in the estuary for the spring and summer. In addition, we found evidence of other life history types: coastal cutthroat trout that rear mainly in the estuary but make brief forays into the near shore ocean, and some that rear in the estuary throughout winter. We saw no difference in mean length at tagging between ocean migrants and estuarine residents, suggesting that the stimulation for migrating to the ocean was not size related. Half of the acoustically tagged fish exhibited the estuarine life history type. We compared growth rates of ocean migrants and estuarine residents by classifying PIT-tagged fish into life history types based on their recapture history. We found no evidence of a growth advantage for ocean migrants, although sample size was small. This study suggests that the estuarine life history is an important migratory behavior within the continuum of life histories for coastal cutthroat trout in the Salmon River. Our results imply that conservation of coastal cutthroat trout may depend on recovery and maintenance of suitable estuarine rearing habitat.
Download or read book Seasonal Changes in Distribution of Coastal Cutthroat Trout in an Isolated Watershed written by Steve Hendricks and published by . This book was released on 2002 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: In an effort to identify seasonal distribution patterns and habitat requirements of coastal cutthroat trout Oncorhynchus clarki clarki, movement of tagged and marked individuals (35 radio-tagged, 753 PIT-tagged, and 5,322 fin-clipped) was monitored over a 14-month period in an isolated watershed in southwestern Oregon. Emigration out of the basin was estimated with a rotating fish trap. Results showed that 70% of recaptured PIT-tagged cutthroat trout and 86% of radio-tagged fish moved among channel units. A smaller proportion of tagged fish moved at the reach- and segment-scale. Greatest movement occurred in April, at the peak of spawning, and the least occurred in October, when discharge was at its lowest. Radio- and PIT-tagged cutthroat trout occupied pool habitat 62-97% of the time, depending on the season. Only 63 (
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.
