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Bob Gresswell, Ph.D. (Former Employee)

Science and Products

Image: School of Bull Trout

The Potential Influence of Changing Climate on the Persistence of Native Salmonids

Understanding how climate change will influence habitat for interior species of native salmonids is critical for effective management and recovery of these species. The US Department of the Interior, the US Department of Agriculture, state fisheries managers, and non-governmental organizations are increasingly challenged in attempting the recovery and restoration of native trout and...
By
Climate Adaptation Science Centers
The Potential Influence of Changing Climate on the Persistence of Native Salmonids

The Potential Influence of Changing Climate on the Persistence of Native Salmonids

Understanding how climate change will influence habitat for interior species of native salmonids is critical for effective management and recovery of these species. The US Department of the Interior, the US Department of Agriculture, state fisheries managers, and non-governmental organizations are increasingly challenged in attempting the recovery and restoration of native trout and salmon
Learn More
Filter Total Items: 78

Rapid early development and feeding benefits an invasive population of lake trout Rapid early development and feeding benefits an invasive population of lake trout

Lake trout (Salvelinus namaycush) were discovered in Yellowstone Lake in 1994 and their population expanded dramatically despite intensive suppression. The lake is species-depauperate, with no major lake trout embryo predators. We hypothesized that without this predation threat, lake trout free embryo feeding and growth may be greater than in their native range, leading to increased...
Authors
Lee G. Simard, J Ellen Marsden, Robert E. Gresswell, Megan Euclide
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

The effectiveness of non-native fish removal techniques in freshwater ecosystems: a systematic review The effectiveness of non-native fish removal techniques in freshwater ecosystems: a systematic review

In aquatic systems, biological invasions can result in adverse ecological effects. Management techniques available for non-native fish removal programs (including eradication and population size control) vary widely, but include chemicals, harvest regimes, physical removal, or biological control. For management agencies, deciding on what non-native fish removal program to use has been...
Authors
Trina Rytwinski, Jessica J. Taylor, Lisa A. Donaldson, J. Robert Britton, David R. Browne, Robert E. Gresswell, Mark Lintermans, Kent A. Prior, Marlow G. Pellatt, Chantal Vis, Steven J. Cooke
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

Application of multistate modeling to estimate salmonid survival and movement in relation to spatial and temporal variation in metal exposure in a large mining-impacted river Application of multistate modeling to estimate salmonid survival and movement in relation to spatial and temporal variation in metal exposure in a large mining-impacted river

We used telemetry and multistate modeling to estimate survival and movement of brown trout Salmo trutta and westslope cutthroat trout Oncorhynchus clarkii lewisi in relation to dissolved copper concentrations in 189 km of the upper Clark Fork River, Montana, a mining-impacted river in western Montana. Annual survival estimates for both brown trout (range, 0.27-0.53) and westslope...
Authors
Mariah P. Mayfield, Thomas E. McMahon, Jay J. Rotella, Robert E. Gresswell, Trevor M. Selch, Patrick Saffle, Jason Lindstrom, Brad Liermann
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

A portfolio framework for prioritizing conservation efforts for Yellowstone Cutthroat Trout populations A portfolio framework for prioritizing conservation efforts for Yellowstone Cutthroat Trout populations

Managing and conserving native taxa are becoming increasingly challenging because of mounting threats and limited resources, predicating the need for frameworks to prioritize conservation actions. We integrated attributes of population persistence, genetic status, threats from nonnative species, and threats from climatic shifts to prioritize conservation actions for Yellowstone Cutthroat...
Authors
Robert Al-Chokhachy, Bradley B. Shepard, Jason C. Burckhardt, Dan Garren, Scott Opitz, Todd M. Koel, Lee M. Nelson, Robert E. Gresswell
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center, Forest and Rangeland Ecosystem Science Center

Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon

We used a paired-watershed approach to investigate the effects of contemporary logging practices on headwater populations of coastal cutthroat trout (Oncorhynchus clarkii clarkii) and juvenile coho salmon (Oncorhynchus kisutch) in a second-growth Douglas-fir forested catchment in Oregon. Stream habitat and fish population characteristics, including biomass, abundance, growth, size, and...
Authors
Douglas S. Bateman, Robert E. Gresswell, Dana Warren, David Hockman-Wert, David W. Leer, Jeffrey T. Light, John D. Stednick
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

Using carbon dioxide in fisheries and aquatic invasive species management Using carbon dioxide in fisheries and aquatic invasive species management

To restore native fish populations, fisheries programs often depend on active removal of aquatic invasive species. Chemical removal can be an effective method of eliminating aquatic invasive species, but chemicals can induce mortality in nontarget organisms and persist in the environment. Carbon dioxide (CO2) is an emerging alternative to traditional chemical control agents because it...
Authors
Hilary B. Treanor, Andrew M. Ray, Megan J. Layhee, Barnaby J. Watten, Jason A. Gross, Robert E. Gresswell, Molly A. H. Webb
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

Science and Products

Image: School of Bull Trout

The Potential Influence of Changing Climate on the Persistence of Native Salmonids

Understanding how climate change will influence habitat for interior species of native salmonids is critical for effective management and recovery of these species. The US Department of the Interior, the US Department of Agriculture, state fisheries managers, and non-governmental organizations are increasingly challenged in attempting the recovery and restoration of native trout and...
By
Climate Adaptation Science Centers
The Potential Influence of Changing Climate on the Persistence of Native Salmonids

The Potential Influence of Changing Climate on the Persistence of Native Salmonids

Understanding how climate change will influence habitat for interior species of native salmonids is critical for effective management and recovery of these species. The US Department of the Interior, the US Department of Agriculture, state fisheries managers, and non-governmental organizations are increasingly challenged in attempting the recovery and restoration of native trout and salmon
Learn More
Filter Total Items: 78

Rapid early development and feeding benefits an invasive population of lake trout Rapid early development and feeding benefits an invasive population of lake trout

Lake trout (Salvelinus namaycush) were discovered in Yellowstone Lake in 1994 and their population expanded dramatically despite intensive suppression. The lake is species-depauperate, with no major lake trout embryo predators. We hypothesized that without this predation threat, lake trout free embryo feeding and growth may be greater than in their native range, leading to increased...
Authors
Lee G. Simard, J Ellen Marsden, Robert E. Gresswell, Megan Euclide
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

The effectiveness of non-native fish removal techniques in freshwater ecosystems: a systematic review The effectiveness of non-native fish removal techniques in freshwater ecosystems: a systematic review

In aquatic systems, biological invasions can result in adverse ecological effects. Management techniques available for non-native fish removal programs (including eradication and population size control) vary widely, but include chemicals, harvest regimes, physical removal, or biological control. For management agencies, deciding on what non-native fish removal program to use has been...
Authors
Trina Rytwinski, Jessica J. Taylor, Lisa A. Donaldson, J. Robert Britton, David R. Browne, Robert E. Gresswell, Mark Lintermans, Kent A. Prior, Marlow G. Pellatt, Chantal Vis, Steven J. Cooke
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

Application of multistate modeling to estimate salmonid survival and movement in relation to spatial and temporal variation in metal exposure in a large mining-impacted river Application of multistate modeling to estimate salmonid survival and movement in relation to spatial and temporal variation in metal exposure in a large mining-impacted river

We used telemetry and multistate modeling to estimate survival and movement of brown trout Salmo trutta and westslope cutthroat trout Oncorhynchus clarkii lewisi in relation to dissolved copper concentrations in 189 km of the upper Clark Fork River, Montana, a mining-impacted river in western Montana. Annual survival estimates for both brown trout (range, 0.27-0.53) and westslope...
Authors
Mariah P. Mayfield, Thomas E. McMahon, Jay J. Rotella, Robert E. Gresswell, Trevor M. Selch, Patrick Saffle, Jason Lindstrom, Brad Liermann
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

A portfolio framework for prioritizing conservation efforts for Yellowstone Cutthroat Trout populations A portfolio framework for prioritizing conservation efforts for Yellowstone Cutthroat Trout populations

Managing and conserving native taxa are becoming increasingly challenging because of mounting threats and limited resources, predicating the need for frameworks to prioritize conservation actions. We integrated attributes of population persistence, genetic status, threats from nonnative species, and threats from climatic shifts to prioritize conservation actions for Yellowstone Cutthroat...
Authors
Robert Al-Chokhachy, Bradley B. Shepard, Jason C. Burckhardt, Dan Garren, Scott Opitz, Todd M. Koel, Lee M. Nelson, Robert E. Gresswell
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center, Forest and Rangeland Ecosystem Science Center

Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon Fish response to contemporary timber harvest practices in a second-growth forest from the central Coast Range of Oregon

We used a paired-watershed approach to investigate the effects of contemporary logging practices on headwater populations of coastal cutthroat trout (Oncorhynchus clarkii clarkii) and juvenile coho salmon (Oncorhynchus kisutch) in a second-growth Douglas-fir forested catchment in Oregon. Stream habitat and fish population characteristics, including biomass, abundance, growth, size, and...
Authors
Douglas S. Bateman, Robert E. Gresswell, Dana Warren, David Hockman-Wert, David W. Leer, Jeffrey T. Light, John D. Stednick
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center

Using carbon dioxide in fisheries and aquatic invasive species management Using carbon dioxide in fisheries and aquatic invasive species management

To restore native fish populations, fisheries programs often depend on active removal of aquatic invasive species. Chemical removal can be an effective method of eliminating aquatic invasive species, but chemicals can induce mortality in nontarget organisms and persist in the environment. Carbon dioxide (CO2) is an emerging alternative to traditional chemical control agents because it...
Authors
Hilary B. Treanor, Andrew M. Ray, Megan J. Layhee, Barnaby J. Watten, Jason A. Gross, Robert E. Gresswell, Molly A. H. Webb
By
Ecosystems Mission Area, Northern Rocky Mountain Science Center
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