USGS Fisheries Scientists in Skagit County, WA
Detailed Description
These are two USGS Western Fisheries Research Center scientists, Carl Ostberg and Jeff Duda (from left to right), sitting on a fallen tree in Skagit, WA. These scientists study critical fish, like salmon, in the Ross Dam reservoir and tributaries.
Sources/Usage
Public Domain.
Related
Prey supply and predation as potential limitations to feasibility of anadromous salmonid introductions in a reservoir Prey supply and predation as potential limitations to feasibility of anadromous salmonid introductions in a reservoir
Introducing anadromous fish upstream of migration barriers has frequently been proposed as a conservation strategy, but existing conditions and future changes to the ecosystems above barriers such as invasive species, climate change, and varying water operations influence the capacity to support such introductions. In the Upper Skagit River, Washington, USA, introduction of anadromous...
Authors
Rachelle Johnson, Benjamin Jensen, Tessa Code, Jeffrey Duda, David Beauchamp
Applying intrinsic potential models to evaluate salmon (Oncorhynchus spp.) introduction into main-stem and tributary habitats upstream from the Skagit River Hydroelectric Project, northern Washington Applying intrinsic potential models to evaluate salmon (Oncorhynchus spp.) introduction into main-stem and tributary habitats upstream from the Skagit River Hydroelectric Project, northern Washington
We assessed habitat suitability for salmonids across selected tributaries upstream from three hydroelectric dams on the upper Skagit River in Whatcom County, northern Washington. We used NetMap, a commercial toolset within the ArcMap geographic information system (GIS), to analyze stream attributes based upon a synthetic stream channel network derived from digital elevation models. The...
Authors
Jeffrey Duda, Jill Hardiman
Growth performance of Rainbow Trout in reservoir tributaries and implications for steelhead growth potential above Skagit River dams Growth performance of Rainbow Trout in reservoir tributaries and implications for steelhead growth potential above Skagit River dams
ObjectiveIn the Pacific Northwest (USA), Pacific salmon Oncorhynchus spp. populations have been declining significantly for decades, prompting stakeholders to respond with a variety of conservation and restoration measures. One such measure being considered in the Skagit River basin (Washington, USA) is the introduction of steelhead Oncorhynchus mykiss (anadromous Rainbow Trout) above...
Authors
Benjamin Jensen, Rachelle Johnson, Jeffrey Duda, Carl Ostberg, Tessa Code, Jonathan Mclean, Karl Stenberg, Kimberly Larsen, Marshal Hoy, David Beauchamp
Related
Prey supply and predation as potential limitations to feasibility of anadromous salmonid introductions in a reservoir Prey supply and predation as potential limitations to feasibility of anadromous salmonid introductions in a reservoir
Introducing anadromous fish upstream of migration barriers has frequently been proposed as a conservation strategy, but existing conditions and future changes to the ecosystems above barriers such as invasive species, climate change, and varying water operations influence the capacity to support such introductions. In the Upper Skagit River, Washington, USA, introduction of anadromous...
Authors
Rachelle Johnson, Benjamin Jensen, Tessa Code, Jeffrey Duda, David Beauchamp
Applying intrinsic potential models to evaluate salmon (Oncorhynchus spp.) introduction into main-stem and tributary habitats upstream from the Skagit River Hydroelectric Project, northern Washington Applying intrinsic potential models to evaluate salmon (Oncorhynchus spp.) introduction into main-stem and tributary habitats upstream from the Skagit River Hydroelectric Project, northern Washington
We assessed habitat suitability for salmonids across selected tributaries upstream from three hydroelectric dams on the upper Skagit River in Whatcom County, northern Washington. We used NetMap, a commercial toolset within the ArcMap geographic information system (GIS), to analyze stream attributes based upon a synthetic stream channel network derived from digital elevation models. The...
Authors
Jeffrey Duda, Jill Hardiman
Growth performance of Rainbow Trout in reservoir tributaries and implications for steelhead growth potential above Skagit River dams Growth performance of Rainbow Trout in reservoir tributaries and implications for steelhead growth potential above Skagit River dams
ObjectiveIn the Pacific Northwest (USA), Pacific salmon Oncorhynchus spp. populations have been declining significantly for decades, prompting stakeholders to respond with a variety of conservation and restoration measures. One such measure being considered in the Skagit River basin (Washington, USA) is the introduction of steelhead Oncorhynchus mykiss (anadromous Rainbow Trout) above...
Authors
Benjamin Jensen, Rachelle Johnson, Jeffrey Duda, Carl Ostberg, Tessa Code, Jonathan Mclean, Karl Stenberg, Kimberly Larsen, Marshal Hoy, David Beauchamp