Download or read book A Fish Community Survey and Genetic Analysis of Rainbow Trout in Cottonwood Creek Whitman County Washington written by Connie M. Fox and published by . This book was released on 2005 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The fish distribution in Cottonwood Creek, Whitman County, Washington, was documented through sampling efforts during 2003. Cottonwood Creek is a tributary of Rock Creek that enters about five kilometers below the outlet of Rock Lake. A total of 55 locations along Cottonwood Creek and its two main tributaries, Kamiache and Pleasant Valley Creeks, were electrofished to determine relative abundance of each species present. Eight species were collected throughout the drainage. Native minnows dominated the fish fauna, comprising 52% of all species collected. Two nonindigenous species, the brook stickleback, Culaea inconstans and fathead minnow, Pimephales promelas, were recorded for the first time in the Cottonwood Creek drainage. Rainbow trout, Oncorhynchus mykiss were also collected from this drainage. Rainbow trout in Cottonwood Creek could have come from 1) hatchery plants into Rock Lake (Washington Department of Fish and Wildlife has stocked the lake with rainbow trout from the Spokane and Lyons Ferry hatcheries); 2) wild (naturally reproducing) fish derived from these hatchery stocks, or 3) an indigenous population of wild (naturally reproducing) interior redband trout. The fish appeared to be wild (naturally reproducing) because they did not bear characteristic markings of a hatchery fish, such as stubby fins. Rainbow trout collected during sampling efforts were analyzed using microsatellite DNA analysis for stock identification. Nei's genetic distance was used to measure the relationship between Cottonwood Creek rainbow trout and six other eastern Washington trout populations: two populations derived from plants of coastal rainbow trout, a population of cutthroat trout and three redband rainbow trout populations. Cottonwood Creek rainbow trout most closely resembled those from Buck Creek in the Spokane River drainage. The Buck Creek rainbow population is a coastal variety that was planted into Buck Creek from the Spokane Fish hatchery and subsequently began to naturally reproduce in the wild. Thus, it is probable that the Cottonwood Creek rainbow trout were derived from Spokane hatchery plants into Rock Lake that subsequently began to reproduce in the wild"--Document.

Download or read book Genetic Analysis of Rainbow Trout from the Big Wood River and Trail Creek Blaine County Idaho written by Richard N. Williams and published by . This book was released on 1993 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Genetic Analysis of the Rainbow Trout Population in the Grand Canyon Portion of the Colorado River written by Julie E. Claussen and published by . This book was released on 1986 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Analysis of Growth and Reproductive Traits in Rainbow Trout written by Guosheng Su and published by . This book was released on 1996 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Genetic Analysis of Rainbow Trout Populations written by Mark Joseph Bagley and published by . This book was released on 1997 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yakima River Wild Trout Survey written by Donald E. Campton and published by . This book was released on 1980 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Lake Roosevelt Rainbow Trout Habitat written by and published by . This book was released on 2004 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: The construction of Chief Joseph and Grand Coulee Dams completely and irrevocably blocked anadromous fish migrations to the Upper Columbia River. Historically this area hosted vast numbers of salmon returning to their natal waters to reproduce and die. For the native peoples of the region, salmon and steelhead were a principle food source, providing physical nourishment and spiritual sustenance, and contributing to the religious practices and the cultural basis of tribal communities. The decaying remains of spawned-out salmon carcasses contributed untold amounts of nutrients into the aquatic, aerial, and terrestrial ecosystems of tributary habitats in the upper basin. Near the present site of Kettle Falls, Washington, the second largest Indian fishery in the state existed for thousands of years. Returning salmon were caught in nets and baskets or speared on their migration to the headwater of the Columbia River in British Columbia. Catch estimates at Kettle Falls range from 600,000 in 1940 to two (2) million around the turn of the century (UCUT, Report No. 2). The loss of anadromous fish limited the opportunities for fisheries management and enhancement exclusively to those actions addressed to resident fish. The Lake Roosevelt Rainbow Trout Habitat/Passage Improvement Project is a mitigation project intended to enhance resident fish populations and to partially mitigate for anadromous fish losses caused by hydropower system impacts. This substitution of resident fish for anadromous fish losses is considered in-place and out-of-kind mitigation. Upstream migration and passage barriers limit the amount of spawning and rearing habitat that might otherwise be utilized by rainbow trout. The results of even limited stream surveys and habitat inventories indicated that a potential for increased natural production exists. However, the lack of any comprehensive enhancement measures prompted the Upper Columbia United Tribes Fisheries Center (UCUT), Colville Confederated Tribes (CCT), Spokane Tribe of Indians (STI) and Washington Department of Fish and Wildlife (WDFW) to develop and propose a comprehensive fishery management plan for Lake Roosevelt. The Rainbow Trout Habitat/Passage Improvement Project (LRHIP) was designed with goals directed towards increasing natural production while maintaining genetic integrity among current tributary stocks. The initial phase of the Lake Roosevelt Habitat Improvement Project (Phase I, baseline data collection: 1990-91) was focused on the assessment of limiting factors, including the quality and quantity of available spawning gravel, identification of passage barriers, and assessment of other constraints. After the initial assessment of stream parameters, five streams meeting specific criteria were selected for habitat/passage improvement projects (Phase II, implementation -1992-1995). Four of these projects were on the Colville Indian Reservation South Nanamkin, North Nanamkin, Louie and Iron Creeks and one Blue Creek was on the Spokane Indian Reservation. At the completion of project habitat improvements, the final phase (Phase III, monitoring-1996-2000) began. This phase assessed the changes and determined the success achieved through the improvements. Data analysis showed that passage improvements are successful for increasing habitat availability and use. The results of in-stream habitat improvements were inconclusive. Project streams, to the last monitoring date, have shown increases in fish density following implementation of the improvements. In 2000 Bridge Creek, on the Colville Reservation was selected for the next phase of improvements. Data collection, including baseline stream survey and population data collection, was carried out during 2001 in preparation for the design and implementation of stream habitat/passage improvements. Agencies cooperating on the project include the Colville Confederated Tribes (CCT), Natural Resource Conservation Service (NRCS, Ferry County District), Ferry County Conservation District, and Ferry County. The Bonneville Power Administration (BPA) provided project funding support and program integration assistance. A stock of redband rainbow trout, were discovered in 2001 in an isolated section of Bridge Creek above a set of waterfalls. DNA microsatellite analysis was conducted at the University of Idaho and indicated that very little if any hybridization. The targeted species in the genetic analysis was red band/rainbow trout (Oncorhynchus mykiss spp.). The sub-contract is with Madison Powell and Joyce Faler at the Center for Salmonid and Freshwater Species at Risk at the University of Idaho/HFCES. DNA analysis used mitochondrial and nuclear RFLP markers along with two microsatellite loci. Sample populations were screened for detectable levels of introgressive hybridization arising from possible admixtures of hatchery coastal rainbow trout with native red band trout.

Download or read book Genetic Analysis of Rainbow and Cutthroat Trout from the Lower Columbia River written by and published by . This book was released on 1998 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preservation of eggs and genetic sex discrimination in rainbow trout Oncorhynchus mykiss written by Marina Komrakova and published by Cuvillier Verlag. This book was released on 2006 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Analysis of Four Rainbow Trout Populations from Owyhee County Idaho written by Robb F. Leary and published by . This book was released on 1983 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Resident Fish Community Impacts on Stocked Rainbow Trout Ecology in 15 Eastern Washington Lakes written by Kevin Mahoney and published by . This book was released on 2012 with total page 174 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The principal purpose of this research was to analyze the effects of resident fish communities and lake habitat on energy source use and trophic position of stocked rainbow trout. Stable isotope analysis was used to accomplish this goal, with stable carbon isotope ratios indicating the source of carbon, pelagic or littoral, in each species' diet and stable nitrogen isotope ratios determining species' relative trophic positions. The research was conducted in 15 eastem Washington State lakes, all stocked with rainbow trout for sport fishing purposes. I found wide confidence intervals around the % estimated littoral carbon in most of the lakes. However, the estimate of percent littoral carbon used by stocked rainbow trout could be predicted by several factors including the complexity of the resident fish community, amount of littoral vegetation present, and the presence of other resident trout and brown bullhead. In addition, significant negative correlations were detected between rainbow trout [gamma]15N and resident fish community complexity and the presence of other resident trout. As a consequence, alteration of rainbow trout stocking densities is recommended in aquatic systems containing complex resident fish communities and/or resident trout and/or brown bullhead, as the presence of those specific constituents negatively correlated to stocked rainbow trout littoral carbon use and/or trophic position. Despite these findings, stable isotope analysis does have limitations and difficulties, as seen in this research. Based on poor confidence intervals for estimated percent littoral carbon use, the diet of sampled organisms was difficult to assess. In addition, a more specific analysis of each sampled species' relative trophic position could not be done because I did not have clear baseline [gamma]15N for littoral primary consumers in several of the lakes. As a result, conclusions should be considered preliminary and tentative. An extensive sampling regimen is recommended for similar future studies to avoid these issues"--Document.

Download or read book Genetic Analysis of Umatilla River Rainbow Trout written by Kenneth P. Currens and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Analysis of Traits Associated with Domestication in Rainbow Trout written by Robert Edward Drew and published by . This book was released on 2006 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Genetic Analysis of Induced Deletions in Rainbow Trout written by Kyle Sundin and published by . This book was released on 2002 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Genetic Analysis of Body Weight and Egg Production in Rainbow Trout written by Ning Huang and published by . This book was released on 1986 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quantitative and Molecular Genetic Analysis of Embryonic Development Rate in Rainbow Trout Oncorhynchus Mykiss microform written by Robison, Barrie Dennis and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1999 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Factors Affecting the Rainbow Trout Fishery in the Hoover Dam Tailwater Colorado River written by Jody P. Walters and published by . This book was released on 1996 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: