Download or read book The Effects of Fry Supplementation on the Emigration of Salmonids from Tributaries of Clearwater River Washington written by Roger J. Peters and published by . This book was released on 1996 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1997 with total page 840 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bibliography of Agriculture written by and published by . This book was released on 1998 with total page 2312 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mechanisms Controlling Migration of Sockeye Salmon Fry written by E. L. Brannon and published by New Westminster, B.C. : International Pacific Salmon Fisheries Commission. This book was released on 1972 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Research in Fisheries written by University of Washington. College of Fisheries and published by . This book was released on 1979 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Effects of Instream Flow Levels on Sockeye Salmon Fry Production in the Cedar River Washington written by A. H. Hamalainen and published by . This book was released on 1978 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Endangered Species written by United States. General Accounting Office and published by . This book was released on 1992 with total page 44 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cumulative Effects of Logging Road Sediment on Salmonid Populations in the Clearwater River Jefferson County Washington written by C. J. Cederholm and published by . This book was released on 1981 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Study of Interlake Migration of Red Salmon Fry Agulowak River written by Robert Louis Burgner and published by . This book was released on 1963 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evaluation of Downstream Migrant Salmon Production in from the Cedar River and Bear Creek written by and published by . This book was released on 2006 with total page 82 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Food web Implications of Reintroducing Anadromous Salmonids in Reservoirs on the North Fork Lewis River Washington written by Mark Henry Sorel and published by . This book was released on 2015 with total page 124 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reintroductions using active transport (trap-and-haul) of anadromous salmonids around impassable high-head dams are being proposed with increasing frequency in the Pacific Northwest. Such reintroductions have already begun or are proposed above three dams on the North Fork Lewis River in Washington State. Spring Chinook Salmon Oncorhynchus tshawytscha and Coho Salmon O. kisutch have been observed rearing in several lakes and reservoirs elsewhere, raising the question of the potential for reservoir habitat to contribute to smolt production in the Lewis River. To determine whether the Lewis River Reservoirs can support reintroduced populations of juvenile salmonids, we evaluated prey supply and consumption demand of resident fishes to estimate the carrying capacity for planktivores. We also evaluated the potential predation impact of Northern Pikeminnow Ptychocheilus oregonensis on reintroduced anadromous salmonids in Merwin Reservoir, in response to concern that predation by the large population of native piscivores could undermine the reintroduction effort. To achieve these objectives, we examined the thermal regime, food-web structure, invertebrate abundance and distribution, and fish abundance and distribution in a spatiotemporally explicit manner in each reservoir. We then quantified trophic interactions with bioenergetics and population modeling. In all three reservoirs on the North Fork Lewis River, estimates of prey supply suggested that a moderate surplus of food was available to support the addition of juvenile anadromous salmonid consumption demand. The preliminary estimates for the abundance of sub-yearling salmonids that could be supported ranged 130,000-330,000 for each of the individual reservoirs; however, investigation into the behavior and growth of juvenile anadromous salmonids in the reservoirs would refine these estimates. Estimates of predation rates on resident salmonids were used to infer potential predation rates on reintroduced anadromous salmonids rearing year-round or migrating through Merwin Reservoir. We found that per-capita predation rates by Northern Pikeminnow were relatively low due to non-overlapping distributions during much of the growing season and the size structure of the predator population. The annual predation of Kokanee Oncorhynchus nerka by a size-structured population of 1,000 Northern Pikeminnow >̲ 300 mm was analogous to predation losses of 16,000-40,000 sub-yearling spring Chinook rearing in Merwin Reservoir year-round. Estimated salmonid consumption by 1,000 Northern Pikeminnow during peak smolt out-migration (April-June), if directed solely at migrating smolts, was analogous to 400-1,000 yearling spring Chinook Salmon (18-45 g each). These results can help managers set goals for the ongoing and proposed reintroductions of anadromous salmonids in the Lewis River that are desirable to stakeholders and realistic given the constraints of habitat, food supply, and predation losses.
Download or read book Climate Change and Indigenous Peoples in the United States written by Julie Koppel Maldonado and published by Springer. This book was released on 2014-04-05 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt: With a long history and deep connection to the Earth’s resources, indigenous peoples have an intimate understanding and ability to observe the impacts linked to climate change. Traditional ecological knowledge and tribal experience play a key role in developing future scientific solutions for adaptation to the impacts. The book explores climate-related issues for indigenous communities in the United States, including loss of traditional knowledge, forests and ecosystems, food security and traditional foods, as well as water, Arctic sea ice loss, permafrost thaw and relocation. The book also highlights how tribal communities and programs are responding to the changing environments. Fifty authors from tribal communities, academia, government agencies and NGOs contributed to the book. Previously published in Climatic Change, Volume 120, Issue 3, 2013.
Download or read book EPA 670 2 written by and published by . This book was released on 1973-11 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Behavior and Ecology of Pacific Salmon and Trout written by Thomas P. Quinn and published by UBC Press. This book was released on 2011-11-01 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Behavior and Ecology of Pacific Salmon and Trout explains the patterns of mate choice, the competition for nest sites, and the fate of the salmon after their death. It describes the lives of offspring during the months they spend incubating in gravel, growing in fresh water, and migrating out to sea to mature. This thorough, up-to-date survey should be on the shelf of everyone with a professional or personal interest in Pacific salmon and trout. Written in a technically accurate but engaging style, it will appeal to a wide range of readers, including students, anglers, biologists, conservationists, legislators, and armchair naturalists.
Download or read book Dams Fish and Fisheries written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2001 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: The importance of free longitudinal passage of river fauna is stressed.
Download or read book The Atlantic Salmon in the History of North America written by R. W. Dunfield and published by Fisheries and Oceans, Scientific Information and Publications Branch. This book was released on 1985 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Atlantic salmon (Salmo salar) has occupied a salient position in the history of eastern North America for at least the past 1000 years. Initially the species occupied a prominant niche in the prolific web of life that existed throughout its former occurrence area; millions of pounds of salmon were produced annually from the freshwater streams between New York and Ungava - a resource that was a principal food source for the Amerindian cultures which shared its range. In a chronological and cumulative way, the salmon became an increasingly important factor in both the domestic and commercial life of the developing colonies; it provided a recreational outlet for the sportsman, and evolved as a principal object of intellectual and scientific investigation. The documented specifics of the salmon's history, however, are largely comprised of repetitive instances of overexploitation, careless destruction of stocks and their environment, and ineffectual conservation actions. Despite the species' former importance, its more recent history is one of declining presence, and its destiny appears to be extinction. By documenting this story of discovery, exploitation, and decline, the urgent need for the employment of sound resource management practices to preserve the salmon is emphasized. Appendix A: Historical methods of packing salmon.
Download or read book Forest Roads A Synthesis of Scientific Information written by and published by DIANE Publishing. This book was released on 2001 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
