The Biology of Culvert Barriers: Thinking Outside the Pipe - Invasive Species and Priorities for Fish Passage Barriers

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Presenter: Jason Dunham
Length: 2 parts, 14 min and 38 s

View: Part 1 | Part 2

       Topics:

       Part 1

• Thinking Outside the Pipe
• Why is This a Good Culvert
• Invasive Brook Trout
• Issues for Prioritization
• Need for Prioritization
• Defining Restoration Priorities
• Risk to fish populations
• Barrier Threats: Decreased Population Size
• Loss of Life History Opportunities
• Loss of Connectivity
• Increased Vulnerability
• Wildfire and Salmonid Persistence Model
• Where do Barriers Pose the Biggest Threats
• Erosion Dam Photo
• Persistence: A Matter of Space and Time
• Genetic Responses to Barriers in Salmonines

       Part 2

• Best Potentially Occupied Habitats Upstream of Barriers
• Willamette Basin Steelhead Chart
• Where are Nonnative Invasions a Concern
• Brook Trout Invasions
• Assessment Tree
• To Barrier or Not to Barrier
• Examples: Not a Threat
• Examples: A Threat
• Isolation is a Bigger Theat than Invasion
• Beyond Priorities
• Research Needs

These presentations were produced by Michael J. Furniss and Jeff Guntle, of the US Forest Service, PNW and PSW Research Stations.
US Forest Service, Pacific Northwest Research Station, Pacific Southwest Research Station, Stream Systems Technology Center