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Photo By: Taylor Johnson

Baseline Water Quality Data From Streams Along The Rocky Mountain Front, Montana and The Implications for Native Trout. Triston Isakson and Wyatt Ostberg Fairfield High School Fairfield, MT. Photo By: Taylor Johnson. Cutthroat Trout. Photo By: Dave Yerk. Grizzly Bears.

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Photo By: Taylor Johnson

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  1. Baseline Water Quality Data From Streams Along The Rocky Mountain Front, Montana and The Implications for Native Trout. Triston Isakson and Wyatt Ostberg Fairfield High School Fairfield, MT Photo By: Taylor Johnson

  2. Cutthroat Trout Photo By: Dave Yerk

  3. Grizzly Bears Photo By: Lisa Flowers

  4. Location Map of Study Area

  5. Field Sampling Physical and Chemical Photo By: R Hahn

  6. Chemical Lab Analysis Photo By: R Hahn

  7. Biological Field Sampling Macro-Invertebrate Photo By: R Hahn

  8. Geology Overthrust Belt Photo By: R Hahn

  9. Water Chemistry Piper Diagram Plot of all Streams

  10. Dearborn River Elk Creek (Permissive = Green Not Permissive = Red) Sun River Deep Creek Teton River

  11. (Permissive = Green Not Permissive = Red) Muddy Creek Dupuyer Creek Sheep Creek

  12. (Permissive = Green Not Permissive = Red) Birch Creek Badger Creek Two Medicine River

  13. Streams With One or More Non Permissive Indicators Eliminate EPT Index (Permissive = Green Not Permissive = Red)

  14. Teton River has an established Cutthroat Population Checked old data from Brock Allen, 2007

  15. Conclusions • Each stream had at least one non permissive indicator. • Temperature is the leading limitation to re-establishing native fish along the Rocky Mountain Front. The waters are too warm for Bull Trout. • None of the stream evaluated has potential to re-introduce Bull, Cutthroat, or Grayling below the sample sites. • The upper sections of the Teton River has a native Cutthroat population.

  16. Next Step • Based on high EPT values, and • Brock Allen’s sampling from 2007 • Evaluate Upper Reaches and Tributaries Teton River • Detailed Macro-invertebrate survey • Fish Inventory Intention to re-introduce/expand Cutthroat Trout

  17. Next Step • Based on the results for the Dearborn River • Evaluate Upper Reaches and Tributaries • Detailed Macro-invertebrate survey • Fish Inventory Intention to re-introduce/expand Cutthroat Trout

  18. Questions? Photo By: R Hahn

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