David A. Beauchamp, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 65
Developing a broader scientific foundation for river restoration: Columbia River food webs Developing a broader scientific foundation for river restoration: Columbia River food webs
Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure—without explicitly considering food webs—has been less successful than hoped in terms of enhancing the status of targeted species and often overlooks important constraints on ecologically...
Authors
Robert J. Naiman, Richard Alldredge, David A. Beauchamp, Peter A. Bisson, James Congleton, Charles J. Henny, Nancy Huntly, Roland Lamberson, Colin Levings, Erik N. Merrill, William G. Pearcy, Bruce E. Rieman, Gregory T. Ruggerone, Dennis Scarnecchia, Peter E. Smouse, Chris C. Wood
Bioenergetic response by steelhead to variation in diet, thermal habitat, and climate in the north Pacific Ocean Bioenergetic response by steelhead to variation in diet, thermal habitat, and climate in the north Pacific Ocean
Energetic responses of steelhead Oncorhynchus mykiss to climate-driven changes in marine conditions are expected to affect the species’ ocean distribution, feeding, growth, and survival. With a unique 18-year data series (1991–2008) for steelhead sampled in the open ocean, we simulated interannual variation in prey consumption and growth efficiency of steelhead using a bioenergetics...
Authors
Margaret E. Atcheson, Katherine W. Myers, David A. Beauchamp, Nathan J. Mantua
Columbia River food webs: Developing a broader scientific foundation for river restoration Columbia River food webs: Developing a broader scientific foundation for river restoration
The objectives of this report are to provide a fundamental understanding of aquatic food webs in the Columbia River Basin and to illustrate and summarize their influences on native fish restoration efforts. The spatial scope addresses tributaries, impoundments, the free-flowing Columbia and Snake rivers, as well as the estuary and plume. Achieving the Council's vision for the Columbia...
Authors
J. Richard Alldredge, David Beauchamp, Peter A. Bisson, James Congleton, Charles Henny, Nancy Huntly, Roland Lamberson, Colin Levings, Robert J. Naiman, William Pearcy, Bruce Rieman, Greg Ruggerone, Dennis Scarnecchia, Peter Smouse, Chris C. Wood
Rapid growth in the early marine period improves the marine survival of Chinook salmon (Oncorhynchus tshawytscha) in Puget Sound, Washington Rapid growth in the early marine period improves the marine survival of Chinook salmon (Oncorhynchus tshawytscha) in Puget Sound, Washington
We examined the effect of early marine entry timing and body size on the marine (smolt-to-adult) survival of Puget Sound Chinook salmon (Oncorhynchus tshawytscha). We used data from coded wire tag release groups of hatchery Chinook salmon to test whether hatchery release date, release size, and size in offshore waters in July and September influenced marine survival. Marine survival was...
Authors
Elisabeth J. Duffy, David A. Beauchamp
Pelagic Piscivory Under Shifting Environmental Gradients: Application of A Visual Foraging Model To Diel and Seasonal Sonic Telemetry of Cutthroat Trout In Strawberry Reservoir Pelagic Piscivory Under Shifting Environmental Gradients: Application of A Visual Foraging Model To Diel and Seasonal Sonic Telemetry of Cutthroat Trout In Strawberry Reservoir
No abstract available.
Authors
David A. Beauchamp, Adam G. Hansen, Casey M. Baldwin
Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf
On the basis of stable isotope analysis, we estimated the marine diet of the most abundant anadromous salmonid species in Patagonian Atlantic basins. The results were coupled with bioenergetic and population models to estimate the consumption of food by salmonids and was compared with that by seabirds, the most abundant top predators in the area. Amphipods were the main salmonid prey...
Authors
J. Ciancio, D.A. Beauchamp, M. Pascual
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 65
Developing a broader scientific foundation for river restoration: Columbia River food webs Developing a broader scientific foundation for river restoration: Columbia River food webs
Well-functioning food webs are fundamental for sustaining rivers as ecosystems and maintaining associated aquatic and terrestrial communities. The current emphasis on restoring habitat structure—without explicitly considering food webs—has been less successful than hoped in terms of enhancing the status of targeted species and often overlooks important constraints on ecologically...
Authors
Robert J. Naiman, Richard Alldredge, David A. Beauchamp, Peter A. Bisson, James Congleton, Charles J. Henny, Nancy Huntly, Roland Lamberson, Colin Levings, Erik N. Merrill, William G. Pearcy, Bruce E. Rieman, Gregory T. Ruggerone, Dennis Scarnecchia, Peter E. Smouse, Chris C. Wood
Bioenergetic response by steelhead to variation in diet, thermal habitat, and climate in the north Pacific Ocean Bioenergetic response by steelhead to variation in diet, thermal habitat, and climate in the north Pacific Ocean
Energetic responses of steelhead Oncorhynchus mykiss to climate-driven changes in marine conditions are expected to affect the species’ ocean distribution, feeding, growth, and survival. With a unique 18-year data series (1991–2008) for steelhead sampled in the open ocean, we simulated interannual variation in prey consumption and growth efficiency of steelhead using a bioenergetics...
Authors
Margaret E. Atcheson, Katherine W. Myers, David A. Beauchamp, Nathan J. Mantua
Columbia River food webs: Developing a broader scientific foundation for river restoration Columbia River food webs: Developing a broader scientific foundation for river restoration
The objectives of this report are to provide a fundamental understanding of aquatic food webs in the Columbia River Basin and to illustrate and summarize their influences on native fish restoration efforts. The spatial scope addresses tributaries, impoundments, the free-flowing Columbia and Snake rivers, as well as the estuary and plume. Achieving the Council's vision for the Columbia...
Authors
J. Richard Alldredge, David Beauchamp, Peter A. Bisson, James Congleton, Charles Henny, Nancy Huntly, Roland Lamberson, Colin Levings, Robert J. Naiman, William Pearcy, Bruce Rieman, Greg Ruggerone, Dennis Scarnecchia, Peter Smouse, Chris C. Wood
Rapid growth in the early marine period improves the marine survival of Chinook salmon (Oncorhynchus tshawytscha) in Puget Sound, Washington Rapid growth in the early marine period improves the marine survival of Chinook salmon (Oncorhynchus tshawytscha) in Puget Sound, Washington
We examined the effect of early marine entry timing and body size on the marine (smolt-to-adult) survival of Puget Sound Chinook salmon (Oncorhynchus tshawytscha). We used data from coded wire tag release groups of hatchery Chinook salmon to test whether hatchery release date, release size, and size in offshore waters in July and September influenced marine survival. Marine survival was...
Authors
Elisabeth J. Duffy, David A. Beauchamp
Pelagic Piscivory Under Shifting Environmental Gradients: Application of A Visual Foraging Model To Diel and Seasonal Sonic Telemetry of Cutthroat Trout In Strawberry Reservoir Pelagic Piscivory Under Shifting Environmental Gradients: Application of A Visual Foraging Model To Diel and Seasonal Sonic Telemetry of Cutthroat Trout In Strawberry Reservoir
No abstract available.
Authors
David A. Beauchamp, Adam G. Hansen, Casey M. Baldwin
Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf Marine effect of introduced salmonids: Prey consumption by exotic steelhead and anadromous brown trout in the Patagonian Continental Shelf
On the basis of stable isotope analysis, we estimated the marine diet of the most abundant anadromous salmonid species in Patagonian Atlantic basins. The results were coupled with bioenergetic and population models to estimate the consumption of food by salmonids and was compared with that by seabirds, the most abundant top predators in the area. Amphipods were the main salmonid prey...
Authors
J. Ciancio, D.A. Beauchamp, M. Pascual
Non-USGS Publications**
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.