Pacific Salmon & their Ecosystems - Bisson, Peter A.

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Sommaire:
Where are We? Resources at the Brink.- to a Complex Problem.- to a Complex Problem.- Old Traditions that Led to Abuses of Salmon and Their Ecosystems.- The Origin and Speciation of Oncorhynchus Revisited.- Status of Pacific Northwest Salmonids.- Pacific Salmon Status and Trends-A Coastwide Perspective.- Analyzing Trends and Variability.- On the Nature of Data and Their Role in Salmon Conservation.- Information Requirements for Salmon Management.- Evaluating Salmon Management Institutions: The Importance of Performance Measures, Temporal Scales, and Production Cycles.- Regional Trends.- California Salmon and Steelhead: Beyond the Crossroads.- Idaho's Salmon: Can We Count Every Last One?.- Status of Wild Salmon and Steelhead Stocks in Washington State.- The Status of Salmon and Steelhead in Oregon.- Status of Alaska Salmon.- Pacific Salmon Abundance Trends in the Fraser River Watershed Compared with Other British Columbia Systems.- Factors Contributing to Stock Declines.- Genetic Factors Contributing to Declines of Anadromous Salmonids in the Pacific Northwest.- The Role of Competition and Predation in the Decline of Pacific Salmon and Steelhead.- Degradation and Loss of Anadromous Salmonid Habitat in the Pacific Northwest.- The Role of Harvest Management in the Future of Pacific Salmon Populations: Shaping Human Behavior to Enable the Persistence of Salmon.- Salmon Production in Changing Ocean Domains.- Salmon Policies and Politics.- Salmon Fisheries in the Pacific Northwest: How are Harvest Decisions Made?.- Habitat Policy for Salmon in the Pacific Northwest.- Water Management and Water Quality Decision Making in the Range of Pacific Salmon Habitat.- A Resource in Crisis: Changing the Measure of Salmon Management.- Technological Solutions: Cost-EffectiveRestoration.- Watershed Management and Pacific Salmon: Desired Future Conditions.- Restoration of Riparian and Aquatic Systems for Improved Fisheries Habitat in the Upper Columbia Basin.- Rehabilitation of Pacific Salmon in Their Ecosystems: What Can Artificial Propagation Contribute?.- Managing Resources with Incomplete Information: Making the Best of a Bad Situation.- Is Ecological Risk Assessment Useful for Resolving Complex Ecological Problems?.- An Ecosystem-based Approach to Management of Salmon and Steelhead Habitat.- Institutional Solutions: Effective Long-Term Planning and Management.- Do We Need Institutional Change?.- To Till the Water: A History of Ideas in Fisheries Conservation.- Values in the Valuing of Salmon.- Organizational Systems and the Burden of Proof.- Salmon, Stewardship, and Human Values: The Challenge of Integration.- Where Do We Go From Here?.- Where Do We Go From Here? An Outsider's View.- Sustaining Salmon: Three Principles.