NOAA Coastal Storms Program
Stormwater and Salmon - Pre-spawn Mortality of Coho Salmon in Restored Urban Streams
The discovery of die-offs among coho spawners (adult salmon moving upstream to lay eggs) in urban streams throughout the Puget Sound region have sparked a collaborative investigation into the causes and extent of this mysterious phenomenon. This case study leads you through the investigation. Follow the links below to explore these sections
Pre-spawn mortality coho discovered during a site visit
- Setting the Stage
- Opening Statement and Objectives
- Cracking the Case: A Forensic Investigation
- The Scene: Study Sites
- Lines of Evidence: Preliminary Results
- Forecasting: What Does This Mean for the Future?
- Products and Resources
Proceed to Setting the Stage for information on salmon to help better understand the activities of this investigation.