Bonneville cutthroat trout restoration in the clear creek drainage
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BONNEVILLE CUTTHROAT TROUT RESTORATION IN THE CLEAR CREEK DRAINAGE PowerPoint PPT Presentation


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BONNEVILLE CUTTHROAT TROUT RESTORATION IN THE CLEAR CREEK DRAINAGE. Clear Creek Drainage. Tributary of Sevier River. >60 miles of trout habitat. 1978: BCT restored in Sam Stowe Creek. 2007: BCT restoration plans for three tribs (EA). 2008: BCT remnant confirmed in Pole Creek.

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BONNEVILLE CUTTHROAT TROUT RESTORATION IN THE CLEAR CREEK DRAINAGE

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BONNEVILLE CUTTHROAT TROUT RESTORATION IN THE CLEAR CREEK DRAINAGE


Clear Creek Drainage

  • Tributary of Sevier River

  • >60 miles of trout habitat

  • 1978: BCT restored in Sam Stowe Creek

  • 2007: BCT restoration plans for three tribs (EA)

  • 2008: BCT remnant confirmed in Pole Creek


BCT Restoration

  • 2009: Fish barriers installed at Shingle-Clear confluence

  • 2010: Pre-treatment recon surveys in Shingle Creek (treatment planned for September)


Twitchell Canyon Fire

  • Ignited in July2010 (lightning)

  • Burned 45,000 acres

  • Treatment cancelled

  • 40-80 % of Shingle & Fish sub-drainages burned at moderate-high severity


TWITCHELL CANYON FIRE


TWITCHELL CANYON FIRE

  • Early Oct – Rain storm (bank-full flow) washes ash into tribs and Clear Creek

  • Post-ash sampling: extensive reductions in fish abundance


2011 – Spring

  • Grade control structures

    • Clear Creek

    • Lower Shingle Creek

  • Little habitat damage from spring run off


2011 – August 3 Rain Storm

  • Accumulated 0.5 in (Kimberly SNOTEL)

  • Major flooding in Shingle, Fish, and Clear Creeks

  • Topped USGS gauge at lower Clear (max reading 500 cfs)

  • Post-flood estimates of 1500 to 3500 cfs

  • Normal summer base flow of 10 to 20 cfs

  • Major damage to Clear Creek Canyon Road

  • Habitat in Lower Shingle Creek and Upper Clear Creek held up well in flood

  • Destroyed concrete-block fish barrier


  • Each block weighs 1800 lbs


2011 – Pre-treatment Surveys

  • Shingle Creek Middle Canyon

2011

2010


2011 – Treatment

  • Shingle Creek

  • Clear Creek down to confluence w/ Fish Creek (new barriers)

  • No fish found in Shingle or Clear below Shingle (11.6 mi / 18.6 km)

    • Speckled dace and a few rainbow trout in Clear above Shingle


2011 – Treatment

  • Pole Creek & three tribs

  • Cutthroat found in Skunk Creek (97% BCT)

  • Treated 11.8 mi / 19.0 km


The Future – 2012

  • Rotenone treatments

    • Lower Shingle and Upper Clear (second)

    • Pole Creek (second)

    • Upper Fish Creek (first)

  • BCT introduction

    • Upper Clear Creek (sport fish)

  • Sampling

    • Fish Creek – fish, invertebrates

    • Shingle Creek – temperature


The Future

  • 2013 – Second treatment in Upper Fish Creek

  • Initiate NEPA for BCT restoration in Mill Creek and remainder Clear Creek (incl. barriers)

  • Habitat rehabilitation needed – woody debris felling and riparian planting in Shingle and Fish creeks

  • BCT stocking – not sure when Shingle and Fish will sustain fish (limited source)

  • Introduce other native fish


How has the Twitchell Canyon Fire affected BCT restoration in the Clear Creek drainage?

  • Non native fish removal accelerated.

  • Re-establishment of BCT delayed in many areas.


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