A Case Example - westcoast.fisheries.noaa.gov · Grande Ronde Spring Chinook Patty Dornbusch. M A F...
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A Case Example Grande Ronde Spring Chinook Patty Dornbusch
Transcript of A Case Example - westcoast.fisheries.noaa.gov · Grande Ronde Spring Chinook Patty Dornbusch. M A F...
A Case ExampleGrande RondeSpring Chinook
Patty Dornbusch
M A F A C C B P T A S K F O R C E
January 24-25, 2017 2
Snake RiverSpring/Summer
Chinook
M A F A C C B P T A S K F O R C E
January 24-25, 2017
• ESA Recovery• Broad Sense• Mitigation• Fishery
Goal Types
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
Salm
on S
tatu
s Con
tinuu
m Pristine
Endangered
Threatened
Delisted
ESA Recovery Goals
Extinct
Stable & Self-sustainingover the Long Term
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
ESA Status Assessment
ESU
MPG 2
2
MajorPopulation
Group
Population
PopulationAttributes
ListingUnit
MPG 1
1 543
Abundance Spatial structureProductivity Diversity
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
All MPGs @ low risk• Half of pops @ low risk• One pop @ very low risk• Includes pops very large
production potential• All major life histories• Remaining pops
maintained• Populations evaluated
based on 4 parameters
ESA Recovery Plan (Snake R ESUs)
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Viability Criteria
M A F A C C B P T A S K F O R C E
January 24-25, 2017 7
Delisting Goal – Grande Ronde CHS MPGPopulation Min. Abundance
ThresholdCurrent Viability Recovery Scenario
Lostine/Wallowa R. 1,000 Low Viable or Highly Viable
Imnaha R. 1,000 Low Viable or Highly Viable
Catherine Cr. 750 Low One Viable or Highly Viable
One MaintainedU. Grande Ronde R. 1,000 Low
Wenaha R. 750 Low One Viable or Highly Viable
One MaintainedMinam R. 750 Low
Lookingglass Cr. 500 Functionally extirpated Reintroduction
candidatesBig Sheep Cr. 500 Functionally extirpated
Minimum Abundance Threshold (natural-origin spawners) = 95% probability of persistence over 100 years (viable)
M A F A C C B P T A S K F O R C E
January 24-25, 2017
Salm
on S
tatu
s Con
tinuu
m Pristine
Endangered
Threatened
Delisted
Broad Sense Goals
Extinct
EcologicalSocial
CulturalEconomic
Benefits {
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
Grande Ronde/Imnaha Sp/Su Chinook
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Source
Retu
rn to
su
bbas
in
Esca
pem
ent
(Nat
ural)
Hatc
hery
Br
oods
tock
Harv
est
(inba
sin)
Harv
est
(dow
nstre
am)
Mitig
atio
n
ESA Recovery Plan -- 5.7 -- -- -- --NPCC Subbasin Plan 10.7-21.7 8.8-16.2 0.7 1.2-4.7 -- --Wy-Kan-Ush-Mi Wa-Kish-Wit 21.7 -- -- -- -- --Nez Perce Plan
Viable escapement threshold -- 6.0 -- -- -- --Sustainable escapement 22.3 included included included -- --Ecological escapement 157.0 included included included -- --
* Numbers in thousands
M A F A C C B P T A S K F O R C E
January 24-25, 2017
Salm
on S
tatu
s Con
tinuu
m Pristine
Endangered
Threatened
Delisted
Mitigation Goals
Extinct
Natural
Hatchery
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
Lower Snake Compensation Plan
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Snake R Grande Ronde & Imnaha
Adult mitigation 293,500 45,400Smolt releases 6,750,000 900,000
Spring-Summer Chinook
M A F A C C B P T A S K F O R C E
January 24-25, 2017
Salm
on S
tatu
s Con
tinuu
m Pristine
Endangered
Threatened
Delisted
Fishery Goals
Extinct
Sustainability Values
Healt
hy S
tock
*
Return &Escapement
Harvest,Opportunity,
Cultural,Economic,Allocation
Wea
k Sto
ck
ImpactLimits
* Includes Hatchery
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
US v
Oreg
onMa
nage
men
t Agr
eem
ent
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Fall Chinook – Upriver Brights
Spring Chinook – Snake R*
Goal Measured @ NumberReturn (Management) McNary Dam 60,000Escapement Natural & Hatchery 43,500Harvest rate (Treaty)
Columbia R20 – 30%
Harvest rate (Non-Treaty) 1.5 – 15%
Goal NumberCeremonial & Subsistence ≥ 10,000Impact Limits (Treaty) 5.0 – 14.3%Impact Limits (Non-treaty) <0.5 – 2.7%
* Includes Grande Ronde Spring Chinook
M A F A C C B P T A S K F O R C E
January 24-25, 2017
Harvest Rate Schedule (Upriver Spring Chinook)
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Total Run Size Snake River Natural Run Size
Treaty Harvest Rate*
Non-Treaty Harvest Rate*
<27,000 <2,700 5.0% <0.5%27,000 2,700 5.0% 0.5%33,000 3,300 5.0% 1.0%44,000 4,400 6.0% 1.0%55,000 5,500 7.0% 1.5%82,000 8,200 7.4% 1.6%109,000 10,900 8.3% 1.7%141,000 14,100 9.1% 1.9%217,000 21,700 10.0% 2.0%271,000 27,100 10.8% 2.2%326,000 32,600 11.7% 2.3%380,000 38,000 12.5% 2.5%434,000 43,400 13.4% 2.6%488,000 48,800 14.3% 2.7%
* Wild/Natural Harvest Rate Limits
M A F A C C B P T A S K F O R C E
January 24-25, 2017
Pristine
Endangered
Threatened
Delisted
Extinct
ESARecovery
Sustainability Values
FisheriesMitigationBroadSense
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M A F A C C B P T A S K F O R C E
January 24-25, 2017
Goal-setting Components• Educational• Analytical• Management• Creative
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