Return to the River: Restoring Salmon Back to the Columbia RiverRichard N. Williams Elsevier, 21 нояб. 2005 г. - Всего страниц: 720 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.
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... trout and westslope cutthroat trout, also are increasingly isolated by habitat fragmentation and have been eliminated from many river segments. Many remaining populations are reduced in size and vulnerable to extinction. Evaluation of ...
... Fish and Wildlife Service (USFWS) has responsibility for the listed resident fish species such as bull trout, westslope cutthroat trout O. clarki lewisi, and sturgeon5. Federal Treaties with Indian Tribes When Lewis and Clark entered.
... cutthroat trout (Chapter 5); and (c) juveniles that move from the areas in which eggs were deposited and hatched to ... trout and cutthroat trout), the ocean (e.g., Chinook salmon, coho salmon, chum salmon, and steelhead trout), or both ...
... trout and cutthroat trout within a single 3. A New Conceptual Foundation for Salmon Conservation 69.
... cutthroat trout within a single watershed (e.g., Rieman and McIntyre 1993; Quigley and Arbelbide 1997). Gresswell et al. (1997) documented variations in run timing among populations of Yellowstone cutthroat trout spawning in tributaries ...
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Return to the River: Restoring Salmon to the Columbia River Richard Nicholas Williams Недоступно для просмотра - 2006 |