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Published byLawrence Conley Modified over 8 years ago
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Anadromous Fish of the Rogue River Allison DenBleyker December 4, 2007 GIS in Water Resources
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Background of the Rogue (a.k.a. Grandma’s River)
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Study Area
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Fish Barriers in the Rogue Basin
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Flood control and Irrigation Dams
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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
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Migration Path
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Coho Salmon Migration Path
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Migration Path Elk and Lost Creek Dams Applegate Dam
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Temperature Viable Habitat above Lost Creek Dam 7 USGS stations Temperature & Stream Discharge Profiles do not explain decreasing population
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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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