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Anadromous Fish of the Rogue River

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

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Anadromous Fish of the Rogue River

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  1. Anadromous Fish of the Rogue River Allison DenBleyker December 4, 2007 GIS in Water Resources

  2. Background of the Rogue(a.k.a. Grandma’s River)

  3. Study Area

  4. Fish Barriers in the Rogue Basin

  5. Flood control and Irrigation Dams

  6. 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

  7. Migration Path

  8. Migration Path

  9. Coho Salmon Migration Path

  10. Migration Path Elk and Lost Creek Dams Applegate Dam

  11. Temperature • Viable Habitat above Lost Creek Dam • 7 USGS stations • Temperature & Stream Discharge Profiles do not explain decreasing population

  12. 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

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