Transcript Hatchery Reform Project

Hatchery Reform
in the Pacific
Northwest:
Applying Science
to Hatchery
Management
Hatchery Scientific Review Group
Applying Science to Hatchery Management, August 2008
• WDFW
• Tribe
• USFWS
The Hatchery Reform Project is a
systematic, science-driven review of
hatchery programs to achieve two goals:
1.
2.
helping to conserve naturally spawning
populations; and
supporting sustainable fisheries.
Hatchery Scientific
Review Group
Puget Sound
Columbia River
Unaffiliated
•John Barr (Vice Chair)
•Lee Blankenship (Vice Chair)
•Trevor Evelyn, Ph.D.
•Lars Mobrand, Ph.D. (Chair)
•Lisa Seeb, Ph.D.
•Steve Smith
•William Smoker, Ph.D.
Agency
•Donald Campton, Ph.D.
•Mike Delarm
•Dave Fast, Ph.D.
•Thomas Flagg
•Jeff Gislason, Ph.D.
•Paul Kline
•Conrad Mahnken, Ph.D.
•George Nandor
•Peter Paquet, Ph.D.
•Paul Seidel
Principles for
Hatchery
Management
GOALS
SCIENTIFIC
DEFENSIBILITY
INFORMED
DECISION MAKING
Priorities for Implementing
Hatchery Reform
• Broodstock management
• Compliance with
environmental regulations
Historical hatchery problem:
Unknown gene flow between two environments
?
Wild spawn
Hatchery spawn
?
Unknown gene flow
HSRG 101
• Broodstock Management Strategies
– Integrated, Segregated
• Population Designations
– Primary, Contributing, Stabilizing
Solution:
Genetically Integrated or Segregated Broodstocks
Integrated Goal:
1 population,
2 environments
Hatchery
Wild
Integrated
Segregated Goal:
2 populations,
2 environments
Hatchery
Wild
Segregated
Genetic risks vs. gene flow
Hatchery
Wild
Segregated
Hatchery
Wild
Integrated
Natural Spawning
Genetic
Risk:
HSRG 101
• Broodstock Management Strategies
– Integrated, Segregated
• Population Designations
– Primary, Contributing, Stabilizing
Population Designations
• Why are they important?
– Describes different levels of risk
tolerance.
– Not all populations are created equal.
– Evaluation - apples to apples.
– Balance - helps to ensure an ESU has
diversity, spatial structure, resiliency.
Population Designations
• What the HSRG uses
– Primary—biologically significant, core, key,
highly viable, important to recovery. Historically
were a large segment of the population structure.
Need to be at low risk of extinction.
– Contributing– of some significance, are viable
but lower in abundance than Primary. Contribute
to diversity.
– Stabilizing—a population, but may not have
ever been a large segment of the population
structure.
Definition of Terms
pNOB=% Natural Origin fish in the
hatchery broodstock
pHOS=% Hatchery Origin fish on the
spawning grounds
PNI = pNOB/(pNOB+pHOS)
Designation Standards
Primary
• Integrated hatchery programs: PNI > 0.67; pHOS
<30%
• Segregated hatchery program: pHOS < 5%
Contributing
• Integrated hatchery programs: PNI > 0.50; pHOS
<30%
• Segregated hatchery program: pHOS < 10%
Stabilizing
• Integrated hatchery programs—current condition
• Segregated hatchery programs—current condition
Progress
•
•
•
The HSRG has completed reviews of
populations and hatchery programs for
anadromous salmonids in Washington's
Puget Sound and Coast (State, Federal
Tribal)
2000-2004
Resulted in 1181 recommendations
Progress for Columbia River
•
The HSRG moved to the Columbia in fall
2006. It has completed field reviews of
populations and hatchery programs for
anadromous salmonids.
– Draft Final products by October 2008
– Report to Congress due December
2008
Keys to Conservation
• Develop local broodstocks (even if not native)
– Increased performance
• Control risks to natural populations caused by the
unintended presence of hatchery-origin adults on
spawning grounds
– Acclimation
– Adult recapture facilities
– Use selective fisheries (gear or time and area)
– Reduce program size
– Wild Fish Management Zones
Keys to Conservation cont.
•
•
Develop properly integrated hatchery
programs or - maintain effective,
segregated hatchery programs (HSRG
has no preference)
Place the resources in the hands of the
managers to complete facility and
monitoring reforms
Background - Importance of Habitat
Benefits associated with habitat improvement
increase as Hatchery Reforms are made by
providing better adapted fish to occupy the new
(better) habitat.
Estimated harvest under current and
HSRG management scenarios
120,000
100,000
Current
HSRG
80,000
60,000
40,000
20,000
0
Marine
Mainstem
Terminal
Total
www.hatcheryreform.us