Anadromous Fish of the Rogue River Allison DenBleyker December 4, 2007 GIS in Water Resources
Background of the Rogue (a.k.a. Grandma’s River)
Study Area
Fish Barriers in the Rogue Basin
Flood control and Irrigation Dams
Anadramous Passage Life Cycle – Born in fresh water streams – Live most of life in the ocean – Return to natal streams to reproduce Stream Habitat – Ideal Temperature 5 – 11°C – Upper Limit of 16°C – Velocity > 3 m/s – Depth between 20 – 36 in
Migration Path
Coho Salmon Migration Path
Migration Path Elk and Lost Creek Dams Applegate Dam
Temperature Viable Habitat above Lost Creek Dam 7 USGS stations Temperature & Stream Discharge Profiles do not explain decreasing population
Future Work and Conclusion Consider other factors harming fish during spawning (DO, sediments) and migration (overharvesting) GIS useful tool for visualizing extent of river accessible to migrating fishes