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Author : Anonim
Publisher : Unknown
Page : 60 pages
File Size : 45,9 Mb
Release : 1990
Category : Anadromous fishes
ISBN : UCR:31210024882191
Author : Anonim
Publisher : Unknown
Page : 534 pages
File Size : 46,5 Mb
Release : 1996
Category : Electronic
ISBN : NWU:35556030600340
Author : Anonim
Publisher : Unknown
Page : 328 pages
File Size : 41,5 Mb
Release : 1996
Category : Electronic
ISBN : NWU:35556031020969
Author : National Research Council,Division on Earth and Life Studies,Commission on Life Sciences,Committee on Protection and Management of Pacific Northwest Anadromous Salmonids
Publisher : National Academies Press
Page : 473 pages
File Size : 48,6 Mb
Release : 1996-08-17
Category : Technology & Engineering
ISBN : 9780309053259
The importance of salmon to the Pacific Northwestâ€"economic, recreational, symbolicâ€"is enormous. Generations ago, salmon were abundant from central California through Idaho, Oregon, and Washington to British Columbia and Alaska. Now they have disappeared from about 40 percent of their historical range. The decline in salmon numbers has been lamented for at least 100 years, but the issue has become more widespread and acute recently. The Endangered Species Act has been invoked, federal laws have been passed, and lawsuits have been filed. More than $1 billion has been spent to improve salmon runsâ€"and still the populations decline. In this new volume a committee with diverse expertise explores the complications and conflicts surrounding the salmon problemâ€"starting with available data on the status of salmon populations and an illustrative case study from Washington state's Willapa Bay. The book offers specific recommendations for salmon rehabilitation that take into account the key role played by genetic variability in salmon survival and the urgent need for habitat protection and management of fishing. The committee presents a comprehensive discussion of the salmon problem, with a wealth of informative graphs and charts and the right amount of historical perspective to clarify today's issues, including: Salmon biology and geographyâ€"their life's journey from fresh waters to the sea and back again to spawn, and their interaction with ecosystems along the way. The impacts of human activitiesâ€"grazing, damming, timber, agriculture, and population and economic growth. Included is a case study of Washington state's Elwha River dam removal project. Values, attitudes, and the conflicting desires for short-term economic gain and long-term environmental health. The committee traces the roots of the salmon problem to the extractive philosophy characterizing management of land and water in the West. The impact of hatcheries, which were introduced to build fish stocks but which have actually harmed the genetic variability that wild stocks need to survive. This book offers something for everyone with an interest in the salmon issueâ€"policymakers and regulators in the United States and Canada; environmental scientists; environmental advocates; natural resource managers; commercial, tribal, and recreational fishers; and concerned residents of the Pacific Northwest.
Author : Anonim
Publisher : Unknown
Page : 202 pages
File Size : 49,7 Mb
Release : 2008
Category : Electronic
ISBN : NWU:35556036648046
Author : United States. National Marine Fisheries Service
Publisher : Unknown
Page : 182 pages
File Size : 52,9 Mb
Release : 1995
Category : Fish hatcheries
ISBN : UCR:31210018660108
Author : Richard N. Williams
Publisher : Elsevier
Page : 720 pages
File Size : 43,6 Mb
Release : 2005-11-21
Category : Science
ISBN : 0080454305
Return to the River will describe a new ecosystem-based approach to the restoration of salmon and steelhead populations in the Columbia River, once one of the most productive river basins for anadromous salmonids on the west coast of North America. The approach of this work has broad applicability to all recovery efforts throughout the northern hemisphere and general applicability to fisheries and aquatic restoration efforts throughout the world. The Pacific Northwest is now embroiled in a major public policy debate over the management and restoration of Pacific salmon. The outcome of the debate has the potential to affect major segments of the region's economy - river transportation, hydroelectric production, irrigated agriculture, urban growth, commercial and sport fisheries, etc. This debate, centered as it is on the salmon in all the rivers, has created a huge demand for information. The book will be a powerful addition to that debate. A 15 year collaboration by a diverse group of scientists working on the management and recovery of salmon, steelhead trout, and wildlife populations in the Pacific Northwest Includes over 200 figures, with four-color throughout the book Discusses complex issues such as habitat degradation, juvenile survival through the hydrosystem, the role of artificial production, and harvest reform
Author : Anonim
Publisher : Unknown
Page : 1034 pages
File Size : 41,6 Mb
Release : 1993-02
Category : Government publications
ISBN : UIUC:30112063914672
Author : Anonim
Publisher : Unknown
Page : 1308 pages
File Size : 43,9 Mb
Release : 2024-06-14
Category : Government publications
ISBN : WISC:89117117267
Author : Deanna J. Stouder,Peter A. Bisson,Robert J. Naiman
Publisher : Springer Science & Business Media
Page : 681 pages
File Size : 50,8 Mb
Release : 2012-02-02
Category : Science
ISBN : 9781461563754
The symposium "Pacific Salmon and Their Ecosystems: Status and Future Options',' and this book resulted from initial efforts in 1992 by Robert J. Naiman and Deanna J. Stouder to examine the problem of declining Pacific salmon (Oncorhynchus spp.). Our primary goal was to determine informational gaps. As we explored different scientific sources, state, provincial, and federal agencies, as well as non-profit and fishing organizations, we found that the information existed but was not being communicated across institutional and organizational boundaries. At this juncture, we decided to create a steering committee and plan a symposium to bring together researchers, managers, and resource users. The steering committee consisted of members from state and federal agencies, non-profit organizations, and private industry (see Acknowledgments for names and affiliations). In February 1993, we met at the University of Washington in Seattle to begin planning the symposium. The steering committee spent the next four months developing the conceptual framework for the symposium and the subsequent book. Our objectives were to accomplish the following: (1) assess changes in anadromous Pacific Northwest salmonid populations, (2) examine factors responsible for those changes, and (3) identify options available to society to restore Pacific salmon in the Northwest. The symposium on Pacific Salmon was held in Seattle, Washington, January 10-12, 1994. Four hundred and thirty-five people listened to oral presentations and examined more than forty posters over two and a half days. We made a deliberate attempt to draw in speakers and attendees from outside the Pacific Northwest.
Author : Keith Petersen
Publisher : Unknown
Page : 338 pages
File Size : 47,8 Mb
Release : 2001
Category : Dams
ISBN : MINN:31951D017963886
"As hip and breathless as William Gibson, but spiced with dark humor and the horrible realisation that Noon knows of what he writes....Vurtis passionate, distinctive, demanding and enthralling--first-time novelist Noon has started with a bang."--The London Times.
Author : Oregon Historical Society
Publisher : Unknown
Page : 658 pages
File Size : 54,9 Mb
Release : 2003
Category : Northwest, Pacific
ISBN : UCR:31210016214189
Author : Jim Lichatowich
Publisher : Unknown
Page : 346 pages
File Size : 40,8 Mb
Release : 1999-08
Category : History
ISBN : UVA:35007003673518
"Fundamentally, the salmon's decline has been the consequence of a vision based on flawed assumptions and unchallenged myths.... We assumed we could control the biological productivity of salmon and 'improve' upon natural processes that we didn't even try to understand. We assumed we could have salmon without rivers." --from the introduction From a mountain top where an eagle carries a salmon carcass to feed its young to the distant oceanic waters of the California current and the Alaskan Gyre, salmon have penetrated the Northwest to an extent unmatched by any other animal. Since the turn of the twentieth century, the natural productivity of salmon in Oregon, Washington, California, and Idaho has declined by eighty percent. The decline of Pacific salmon to the brink of extinction is a clear sign of serious problems in the region. In Salmon Without Rivers, fisheries biologist Jim Lichatowich offers an eye-opening look at the roots and evolution of the salmon crisis in the Pacific Northwest. He describes the multitude of factors over the past century and a half that have led to the salmon's decline, and examines in depth the abject failure of restoration efforts that have focused almost exclusively on hatcheries to return salmon stocks to healthy levels without addressing the underlying causes of the decline. The book: describes the evolutionary history of the salmon along with the geologic history of the Pacific Northwest over the past 40 million years considers the indigenous cultures of the region, and the emergence of salmon-based economies that survived for thousands of years examines the rapid transformation of the region following the arrival of Europeans presents the history of efforts to protect and restore the salmon offers a critical assessment of why restoration efforts have failed Throughout, Lichatowich argues that the dominant worldview of our society -- a worldview that denies connections between humans and the natural world -- has created the conflict and controversy that characterize the recent history of salmon; unless that worldview is challenged and changed, there is little hope for recovery. Salmon Without Rivers exposes the myths that have guided recent human-salmon interactions. It clearly explains the difficult choices facing the citizens of the region, and provides unique insight into one of the most tragic chapters in our nation's environmental history.
Author : United States. Congress. Senate. Committee on Appropriations. Subcommittee on Energy and Water Development
Publisher : Unknown
Page : 568 pages
File Size : 55,7 Mb
Release : 1993
Category : Nature
ISBN : UCAL:B5104468
Author : William R. Nelson,Jack Bodle
Publisher : Unknown
Page : 26 pages
File Size : 47,9 Mb
Release : 1990
Category : Chinook salmon
ISBN : UOM:39015086475079