9000 years of salmon fishing on the Columbia River, North America
A large assemblage of salmon bones excavated 50 yr ago from an 10,000-yr-old archaeological site near The Dalles, Oregon, has been the primary evidence that early native people along the Columbia River subsisted on salmon. Analysis of archaeologic
, geologic, and hydrologic conditions at the site indicates an anthropogenic source for most of the salmonid remains, which have associated radiocarbon dates indicating that the site was occupied as long ago 9300 cal yr B.P. The abundance of salmon bone
indicates that salmon was a major food item and suggests that migratory salmonids had well-established spawning populations in some parts of the Columbia Basin by 9300-8200 yr ago.
Probable consequences of climate change on freshwater production of Adams River sockeye salmon
The objective of this study is to evaluate the probable consequences of increasing atmospheric temperatures on the freshwater production of Adams River sockeye salmon.
Hydraulic and sedimentary controls on the availability and use of Atlantic salmon (Salmo salar) spawning habitat in the River Dee system, north-east Scotland
The hydraulic and sedimentary characteristics of the spawning habitat of Atlantic salmon (Salmon salar) in tributary and mainstem locations in a river system in north-east Scotland are described. Salmon used spawning sites with a relatively wide
Shifting river management toward salmon restoration in the Columbia River basin
The Columbia River Basin is the site of a conflict over two resources : hydroelectricity and Pacific salmon. Since 1982, the Pacific Northwest Power Planning Council has endeavored to mediate the conflict by implementing a water budget measure
Alternative regimes of transnational environmental certification : governance, marketization, and place in Alaska’s salmon fisheries
Alaska ; Fishery ; Fishing ; Fishing industry ; Governance ; Industry ; Label ; Neo liberalism ; Salmon
This paper explores the implementation of Marine Stewardship Council certification in salmon fisheries in the US state of Alaska in the early 2000s, the growing opposition to MSC certification through periods of reassessment, and the emergence
Sedimentary links and the spatial organization of Atlantic salmon (Salmo salar) spawning habitat in a Canadian Shield river
First, the AA. propose an extension of the sedimentary link concept for lower relief, old mountain landscapes and test its utility along the Ste Marguerite River (SMR), a salmon river draining the Canadian Shield in the Saguenay region of Québec
. Lastly, they demonstrate the usefulness of the link structure to model the distribution of Atlantic salmon spawning habitat (a habitat that depends critically on bed texture).
Remote sensing analysis of physical complexity of North Pacific Rim rivers to assist wild salmon conservation
Applied ecology ; Classification ; Digital elevation model ; Geographical information system ; Habitat ; LANDSAT ; North Pacific Ocean ; Pacific Region ; Remote sensing ; Salmon ; Satellite imagery ; Stream
The aim of this study was to develop a database of landscape metrics that could be used to rank the rivers in relation to potential salmon productivity. The AA. examined the rankings in relation to existing empirical (monitoring) data describing
productivity of salmon stocks. To extract the metrics for each river basin they used a digital elevation model and multispectral satellite imagery. They developed procedures to extract channel networks, floodplains, on-channel lakes and other catchment features
Sediment textures and hydrogeomorphological characteristics of salmon and sea trout spawning habitats in Germany - a contribution to river ecology
The hydromorphological and sedimentological characteristics of spawning habitats of Atlantic salmon and sea trout were studied in selected rivers in Northern and Western Germany some 30 years after the initiation of restocking measures
Numerical simulation of the impact of sediment supply and streamflow variations on channel grain sizes and Chinook salmon habitat in mountain drainage networks
Climatic change ; Drainage network ; Grain size distribution ; Habitat ; Idaho ; Impact ; Mountain ; Numerical model ; Salmon ; Sediment load ; Sediment transport ; Simulation ; Stream flow ; United States of America ; Watershed
through a gravel-bedded river network using a one-dimensional (1D) bedload transport model. The study site, Buckhorn Creek is located in central Idaho. They calculated changes in grain sizes and estimated Chinook salmon habitat suitability caused by a dry