humpback chub translocations to shinumo and havasu creeks ... · 1/20/2015 · grand canyon...
TRANSCRIPT
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Emily Omana Smith*, Brian Healy, Clay Nelson, Melissa
Trammell
Humpback Chub Translocations to Shinumo and Havasu Creeks, Grand Canyon National Park
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Many Cooperators!
•Funded by Reclamation and NPS
•Thank you to NPS River and Helicopter crews!
•Many, many volunteers helped too!
•Thanks to Amy Martin, Brian Healy, Melissa Trammell, Jeff Sorensen, Jan Balsom, and Allyson Mathis for beautiful photos
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Why Translocate Humpback Chub?
USFWS 1994 Biological Opinion – Establish a 2nd “spawning aggregation” of Humpback Chub
Conservation Measures in USFWS 2008 & 2011 Biological Opinions – tributary Humpback Chub translocations
NPS Comprehensive Fisheries Management Plan 2013
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Valdez et al. 2000 – Developed plan for establishing second population of humpback chub in Grand Canyon, identifying the top 3 tributaries
for translocation
1. Havasu Creek
2. Shinumo Creek
3. Bright Angel Creek, excluded due to “large number of predators…”
Next….
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E X P E R I E N C E Y O U R A M E R I C A
Translocation Sites Glen Canyon Dam & Lake Powell- 15 miles upstream
Hoover Dam & Lake Mead
Lees Ferry
•HBC collected from LCR as YOY•Treated & PIT tagged at SNARRC or AGFD BP•Translocated within 11 months of collection
HBC illustration by Joe Tomelleri
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E X P E R I E N C E Y O U R A M E R I C AE X P E R I E N C E Y O U R A M E R I C A
Translocation Goals
Experimental
Establish second spawning population in Grand Canyon
--and/or— Provide rearing habitat for juvenile Humpback
Chub- Augmentation of Colorado River aggregations
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E X P E R I E N C E Y O U R A M E R I C A
Tributary Hatchery
Tagging Date Average
Length (mm) Average Weight (g) Release Date
Number Translocated
Shinumo Creek May 18, 2009 127.9 18.7 June 15, 2009 302
Shinumo Creek June 10, 2010 121.1 15.3 June 23, 2010 300
Shinumo Creek May 5, 2011 88.9 5.4 June 21, 2011 300
Shinumo Creek June 10, 2013 123.3 14.8 June 15, 2013 200
* Alternative translocation site due to Galahad Fire (fish originally destined for Shinumo Creek).
Shinumo CreekTotal= 1102
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Havasu CreekTotal= 1350
Tributary Hatchery
Tagging Date Average
Length (mm) Average Weight (g) Release Date
Number Translocated
Havasu Creek May 5, 2011 86.1 4.8 June 28, 2011 243 Havasu Creek May 10, 2012 124.7 16.7 May 13, 2012 298 Havasu Creek May 9, 2013 123.1 14.9 May 14, 2013 300 Havasu Creek May 9, 2014 123 16.4 May 14, 2014 300 Havasu Creek* May 9, 2014 124 16.4 June 5, 2013 209
* Alternative translocation site due to Galahad Fire (fish originally destined for Shinumo Creek).
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Monitoring Methods
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Questions about Translocations1. Will chub remain & survive ?
2. Will chub augment mainstem?
3. How will chub fare in the tributaries?
4. Will chub reproduce?
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1.Will chub remain & survive?
50.4% as of January 2013
Antenna efficiency: ??
Apparent survival has varied over time
2011- low Rainbow Trout densities
2013- soft release into new areas
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*Cross-hatched population estimates indicate estimates based on preliminary, modeled capture probability data derived from previous sampling events.
Minimum of 200 HBC to be maintained in Shinumo Creek if acting as a “grow out” stream (NPS CFMP 2013)
1. Will chub remain & survive?
0
300 200300
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Apparent survival does not vary over time in Havasu Creek as it does in Shinumo Creek
Apparent survival does vary by HBC total lengthand translocation group
1. Will chub remain & survive?
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These abundance estimates include both translocated and non-translocated Humpback Chub. Minimum of 200 HBC to be maintained in Havasu Creek if reproduction occurs (USFWS 2010, NPS CFMP 2013)
1. Will chub remain & survive?
298 300 300+209
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2. Will Translocations Augment Colorado River Humpback Chub Aggregations?
NPS 2010-2014: 149 unique translocated chub caught in the mainstem Colorado River, many in multiple years (214 total captures)
3 HBC translocated to Shinumo Creek have been detected in antenna array in the Little Colorado River
GCMRC/FWS presenting much more later today!
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3. How will chub fare in the tributaries?
Hatchery relative weight vs. one summer in Shinumo Creek
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3. How will chub fare in the tributaries?
Theoretical LCR juvenile growth curve: Robinson & Childs 2001
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3. How will chub fare in the tributaries?
Theoretical LCR juvenile growth curve: Robinson & Childs 2001
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4. Will chub reproduce in tributaries?
Havasu Creek•Ripe males and females have been captured
•GCMRC/ U of A ultrasound image study suggests multiple females contained developed eggs
Shinumo Creek•No ripe fish
•Worn fins and spawning coloration detected
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4. Will chub reproduce in tributaries?
Untagged juvenile humpback chub from Havasu Creek in May 2013 & October 2014
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Tributary Translocation Summary1. Will chub remain & survive ? Yes, someMaintaining 200 minimum per the CFMP (NPS 2013) and USFWS 2010 Genetics Management Plan
2. Will chub augment mainstem aggregations? Yes
3. How will chub fare in the tributaries? Growth as high or higher than the LCR
4. Will chub reproduce? Yes, in Havasu Creek
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2014 Flooding & Fire in Shinumo Creek Galahad Fire- started by lightning in May and then managed; burned approximately 6500 acres and 10% of the watershed
Late July- flood severely damaged the antenna array- USFWS staff reported the Colorado River had turned dark with ash
and smelled like a campfire downstream of Shinumo Creek; recreational boaters said the source was Shinumo Creek
- NPS River District personnel observed charcoal pieces in the creek
August 20-22- an larger flood was reported by commercial boatmen, with impacts noted even in the mainstem Colorado River
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2014 Flooding & Fire in Shinumo CreekSeptember – NPS monitoring revealed severe flood disturbance & widespread deposition of charred wood
- water level appeared to have risen at least 12 -15 feet above baseflow- riparian vegetation was reduced by approximately 80-90%- at least one archeology site was damaged (Bass Camp)- macroinvertebrate densities and taxa richness significantly reduced- sediment deposition eliminated most pool habitat, including former
HBC translocation sites- fish community reduced by 99%
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Upper Shinumo Trips
September 29-October 3: Merlin & Modred Reconnaissance- concluded that the heavy localized rainfall on top of
burned areas and flooding caused the likely extirpation of all HBC and BHS from the watershed
- RBT present in Merlin Abyss, providing a source for recolonization as habitat recovers
October 29-November 3: Merlin & Modred Nonnative Removal
- 869 RBT captured and preserved for beneficial use- 139 SPD (population estimate= 293-859)- RBT captured above a barrier falls in upper Merlin; are
found all the way up to the spring source (several miles)High habitat complexity and remote area with extremely difficult access make electrofishing removal unlikely
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Potential Shinumo Creek Actions-pending planning & compliance
Explore options and compliance for trout removal in upper watershed
Monitor recovery of watershed
Translocate Humpback Chub- were successfully maintaining 200 translocated HBC in creek- good growth- evidence of mainstem augmentation
successful “grow out”
Reintroduce Bluehead Sucker
Jeff Sorensen/AGFD Photo
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Pre- and Post- Flood/Galahad Fire photo-matching
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Galahad Fire
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E X P E R I E N C E Y O U R A M E R I C A
Sept 2009 and Sept 2014reach 1
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E X P E R I E N C E Y O U R A M E R I C A
Sept 2009 and Sept 2014Low Trail first stream crossing: Reach 1/2
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E X P E R I E N C E Y O U R A M E R I C A
Sept 2014new driftwood on
top of very tall rock
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Sept 2014Reach 2; note height of debris on tree,
about 12’ above stream level
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E X P E R I E N C E Y O U R A M E R I C A
June 2009 and Sept 2014looking across stream at bottom of Glide Pool, top of
reach 3
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E X P E R I E N C E Y O U R A M E R I C A
June 2009 and Sept 2014“The Glide Pool”; bottom of reach 4
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E X P E R I E N C E Y O U R A M E R I C A
June 2011 and Sept 2014“The Chub Pool” ; reach 4
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Spurgeon, J., C. Paukert, B. Healy, M. Trammell, D. Speas, E. Omana Smith. 2014. Can translocated native fish retain their trophic niche when confronted with a resident invasive? Ecology of Freshwater Fish, pp 1-11. In Press. Translocations of Humpback Chub into tributary streams of the Colorado River: implications for conservation of large-river fishes. Transactions of the American Fisheries Society.
Trammell, M., B. Healy, E. Omana Smith, and P. Sponholtz.2012. Humpback chub translocation to Havasu Creek, Grand Canyon National Park: implementation and monitoring plan. NPS Natural Resource Report Series.
Spurgeon, J. C. Paukert, B. Healy, C. Kelley, D. Whiting. 2014. Can translocated native fish retain their trophic niche when confronted with a resident invasive? Ecology of Freshwater Fish, pp 1-11. Doi: 10.1111/eff.12160
Translocation Publications
Joe Tomelleri
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•Cross-hatched population estimates based on preliminary modeled capture probability data derived from previous sampling events. The asterisk(*) indicates a sampling period for which no population estimate could be derived due to low capture probability. •Zero BHS captured in September 2014 following monsoon flooding and ash flows from the 2014 Galahad Point fire; 74 SPD caught
Shinumo Creek Bluehead Sucker & Speckled Dace
* 0
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* population estimate based on preliminary modeled capture probability data derived from previous sampling events.
*
Shinumo Creek Rainbow Trout
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3. How will chub fare in the tributaries?
Theoretical LCR juvenile growth curve: Robinson & Childs 2001
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3. How will chub fare in the tributaries?
Theoretical LCR juvenile growth curve: Robinson & Childs 2001