Browse by Archive

DigitalCommons@USU

View Archive Info

Numerous field and analytical methods exist to assist in the quantification of the quantity and quality of in-stream habitat for salmonids. These methods range from field sketches or ‘tape and stick’ ground-based surveys, through to spatially...
2011-09-01
We outline a methodology to derive local bed roughness from detailed 3D point cloud data, acquired using a terrestrial laser scanner (TLS) in a 1 km long study reach of the River Feshie. Unlike hand-held scanners, a TLS can be tripod mounted and...
2008-01-01
Resource managers, scientists, government regulators, and stakeholders are considering sophisticated numerical models for managing complex environmental problems. In this study, observations from a river-rehabilitation experiment involving gravel...
2006-08-01
Rehabilitation of salmonid spawning habitat in regulated rivers through spawning bed enhancement is commonly used to mitigate altered sediment and flow regimes and associated declines in salmonid communities. Partial design‐phase predictive...
2004-01-01
An enduring question in geomorphology is the role of riparian vegetation in inducing or exacerbating channel narrowing. It is typically difficult to isolate the role of vegetation in causing channel narrowing, because narrowing typically occurs...
2011-12-01
The high-density of airborne LiDaR data has paved the way for a wide range of multi-scalar analyses of watersheds, some of which elegantly highlight abiotic-faunal interactions. However, most LiDaR sensors do not penetrate the water surface, and...
2009-12-01
A shortage of salmonid spawning habitat on dammed and regulated rivers has led to the popu- larity of spawning habitat rehabilitation projects. Habitat heterogeneity is thought to be an important feature of aquatic ecosystems, but specific metrics...
2004-04-01
The velocity reversal hypothesis is commonly cited as a mechanism for the maintenance of pool-riffle morphology. Although this hypothesis is based on the magnitude of mean flow parameters, recent studies have suggested that mean parameters are not...
2006-10-01
The explosion of different methods for collecting high-resolution repeat topographic datasets in rivers has revolutionized our ability to monitor rivers and track their evolution through time. Increasingly available ground-based (e.g. total...
2011-12-01
Quantifying gravel bed river morphodynamics over decadal to centennial timescales is integral to making informed stream management and restoration decisions. Factors such as land use and climate shifts over such timescales may drastically alter...
2011-12-01
Monitoring river systems with repeat aerial photography is a powerful tool although the temporal resolution of surveys is rarely performed at anything better than annual time-scales. In recent years, a variety of low-cost aerial platforms for...
2008-10-01
A number of researchers have attempted to predict profitable foraging positions for drift-feeding fishes by combining process-based foraging models with spatially explicit hydraulic models. The foraging model component allows for estimates of...
2011-09-01
The geomorphology of the Copper River Watershed in southeast Alaska is dominated by glacial and periglacial processes, which drive the ecology of aquatic organisms in the Copper River and its many tributaries. Glacial-fed rivers are typically...
2002-01-01
Bed elevation, feature adjustments, and spawning use were monitored at three Chinook salmon (Oncorhynchus tschawytscha) spawning habitat rehabilitation sites to measure project longevity in a regulated river. Sites enhanced with 649–1323 m3 of...
2006-06-01
1526 - 1550 of 4910 Items    << < 57 58 59 60 61 62 63 64 65 66 > >> 

© Western Waters Digital Library - GWLA member projects - Designed by the J. Willard Marriott Library - Hosted by Oregon State University Libraries and Press