Download or read book Columbia River Basin Salmon Recovery Efforts written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1993 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Snake River Salmon Recovery written by United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development and published by . This book was released on 1995 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Genetic Conservation of Salmonid Fishes written by Joseph G. Cloud and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the human population increases and nations become more industrialized, the habitat and water quality required for the survival of fish continues to decline. In addition to these environmental factors, fish populations are directly or potentially affected by harvesting, enhancement programs and introgression with hatchery-propagated or transgenic fish. To our knowledge no other scientific meeting has been assembled to consider the breadth of the problem, to review the technology that is presently available for the preservation of the germ plasm of salmonid stocks and to identify the scientific advances that are required to overcome the problems. Because many salmonids have spawning grounds within the confines of a specific region or county but will spend a large portion of their life cycle within the territorial waters of other countries or in the open ocean, the preservation of unique genes or gene pools in these animals requires international cooperation. This scientific meeting has provided a forum in which to discuss the problems, evaluate the present methods or technology for addressing the problems and suggest new directions or innovations that need to be implemented. During this meeting we limited our discussion to salmonid fishes. However, the general conclusions about the factors that affect the population dynamics of fish stocks and the technical aspects concerning the preservation of germ plasm will be applicable to other fish species.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992-08 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Cities and Their Vital Systems written by Advisory Committee on Technology and Society and published by National Academies Press. This book was released on 1989 with total page 1298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cities and Their Vital Systems asks basic questions about the longevity, utility, and nature of urban infrastructures; analyzes how they grow, interact, and change; and asks how, when, and at what cost they should be replaced. Among the topics discussed are problems arising from increasing air travel and airport congestion; the adequacy of water supplies and waste treatment; the impact of new technologies on construction; urban real estate values; and the field of "telematics," the combination of computers and telecommunications that makes money machines and national newspapers possible.
Download or read book Information Reports written by and published by . This book was released on 1981 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1992 with total page 1494 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1989 with total page 1708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aquaculture Management written by James W. Meade and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Although some nations, such as Japan, have invested in aquaculture research and developed major aquaculture industries, the opportunities for similar devel opment in the United States remain largely unnoticed. In a typical recent year the United States, which claims 20% of the world's marine fisheries resources, imported seafood worth $4. 8 billion and exported $l. 3 billion. In addition to the $3. 5 billion deficit in food-fish, was another $2. 7 billion deficit for nonedible fishery products. Next to oil, fishery products constituted the second highest drain on the United States balance of payments and accounts for a significant portion of the foreign trade deficit. Furthermore, fish consumption has been increasing in North America. In response to the demand for fishery products, aquaculture managers not only have the opportunity to realize economic profit, but in doing so can make an important contribution to reducing the national debt, providing employment, and enhancing our diet. This book might be considered a farm management text for those in aquaculture. It is intended to provide an introduction to aquaculture principles and an introduction to management, including business and people management, microeconomics, and the concepts of efficiency and productivity. I hope it will bridge the gap between conservationists, the academic community, and commer cial culturists. Abundant references should enable the reader to quickly access literature on most topics germane to the management of culture systems.
Download or read book Sources of Western Zhou History written by Edward L. Shaughnessy and published by Univ of California Press. This book was released on 1992-01-08 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: The thousands of ritual bronze vessels discovered by China's archaeologists serve as the major documentary source for the Western Zhou dynasty (1045-771 B.C.). These vessels contain long inscriptions full of detail on subjects as diverse as the military history of the period, the bureaucratic structure of the royal court, and lawsuits among the gentry. Moreover, being cast in bronze, the inscriptions preserve exactly the contemporary script and language. Shaughnessy has written a meticulous and detailed work on the historiography and interpretation of these objects. By demonstrating how the inscriptions are read and interpreted, Shaughnessy makes accessible in English some of the most important evidence about life in ancient China.
Download or read book Native Trout of Western North America written by Robert J. Behnke and published by . This book was released on 1992 with total page 310 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Bulletin of the Bureau of Fisheries written by and published by . This book was released on 1935 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Evolution of Marine Coastal Ecosystems under the Pressure of Global Changes written by Hubert-Jean Ceccaldi and published by Springer Nature. This book was released on 2020-06-15 with total page 521 pages. Available in PDF, EPUB and Kindle. Book excerpt: Coastal and estuarine environments at the interface of terrestrial and marine areas are among the most productive in the world. However, since the beginning of the industrial era, these ecosystems have been subjected to strong anthropogenic pressures intensified from the second half of the 20th century, when there was a marked acceleration in the warming (climate change) of the continents, particularly at high latitudes. Coastal ecosystems are highly vulnerable to alteration of their physical, chemical and biological characteristics (marine intrusion, acidification of marine environments, changes in ecosystems, evolution and artificialization of the coastline, etc.).In contact with heavily populated areas, these environments are often the receptacle of a lot of chemical and biological pollution sources that significantly diminish their resilience. In this context of accelerated evolution and degradation of these areas important for food security of many populations around the world, it is necessary to better identify the factors of pressure and understand, at different scales of observation, their effects and impacts on the biodiversity and on the socio-eco-systems, in order to determine the degree of vulnerability of these coastal ecosystems and the risks they face. A transdisciplinary and integrated approach is required to prevent risks. Within this framework, operational coastal oceanography occupies an important place but also the implementation of a true socio-eco-system approach in order to set up an environmentally friendly development.
Download or read book Stream Enhancement Guide written by D.B. Lister & Associates and published by Government of Canada, Fisheries and Oceans, 1980 (1983 printing). This book was released on 1980 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Population Genetics and Fishery Management written by Nils Ryman and published by . This book was released on 2009-10 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first publication of "Population Genetics and Fishery Management" in 1987, significant technological, analytical, and conceptual changes have occurred. By explaining basic population genetics in a fisheries context, the text continues to serve as an excellent starting point for approaching complex recent developments.
Download or read book Embracing Watershed Politics written by Edella Schlager and published by . This book was released on 2008-06-30 with total page 248 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Embracing Watershed Politics, political scientists Edella Schlager and William Blomquist provide timely illustrations and thought-provoking explanations of why political considerations are essential, unavoidable, and in some ways even desirable elements of decision making about water and watersheds. With decades of combined study of water management in the United States, they focus on the many contending interests and communities found in America's watersheds, the fundamental dimensions of decision making, and the impacts of science, complexity, and uncertainty on watershed management.
Download or read book Great Lakes Fisheries Policy and Management written by William W. Taylor and published by East Lansing : Michigan State University Press. This book was released on 1999 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume focuses on the US-Canadian experience with the shared fishery resources of the Laurentian Great Lakes, a vast and complex ecosystem that holds 20 percent of the world's surface fresh water supply and a wide array of fish and fisheries. Written by scientists from federal, state, and provincial management agencies, contributions address current knowledge of the ecological, sociological, and policy issues that face the region's fishery managers and policy makers in both countries. Lacks a subject index.
