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Decisions in the Face of Uncertainty. Cedar River Sockeye Hatchery Proposed Adaptive Management Plan. Landsburg Dam Prior to fish passage improvements. Salmon Life Cycle. Courtesy:Bellevue Utilities. Sockeye rearing area. Blockage to sockeye. Natural spawning area. Project Goals.
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Decisions in the Face of Uncertainty Cedar River Sockeye Hatchery Proposed Adaptive Management Plan
Landsburg Dam Prior to fish passage improvements
Salmon Life Cycle Courtesy:Bellevue Utilities
Sockeyerearing area Blockageto sockeye Natural spawning area
Project Goals • Meet sockeye mitigation concerns • Provide additional fishing opportunity • Avoid or minimize adverse effects
Project Background • Mitigation responsibility to compensate for lost production potential due to blockage to sockeye at Landsburg Dam • Sockeye fry hatchery improves survival allowing more fish to be produced than would be the case naturally. • Hatcheries are being evaluated due to concerns about undesirable impacts on natural spawners
Challenge • How to achieve project benefits while minimizing risk in face of uncertainty? • For this project - How to operate a hatchery to produce more sockeye and provide additional fishing opportunity while minimizing risks to naturally spawning salmon populations and ecosystem?
Approach • Links hatchery production with natural production • Emphasis on maintaining reproductive fitness • Emphasis on limiting risks to naturally reproducing stocks • Commitment to adaptive management
Adaptive Management Program • Designed to: • force definition of key uncertainties • focus limited monitoring funds on addressing key uncertainties • incorporate learning into future project decisions • incorporate scientific and public input in open decision making process
Uncertainty • Hatchery effects are subject to scientific debate; many variables • Project has 12 years of prototype testing; however, future conditions will change, leading to uncertainty of future effects • Lake Washington ecosystem is changing
Uncertainties • What are they? • Which are the most critical to meeting goals? • Production • Effects
Examples of Uncertainties • Effects on reproductive potential of sockeye that spawn naturally • Impacts on chinook • Sufficiency of food supply in Lake Washington to support more fry • Effects of release strategies on survival rates
Addressing Uncertainty • Formulating testable hypotheses • Monitoring and research • Analyses • Project guidance • Updating program as questions are addressed and new ones develop
Examples of Decisions • Level of hatchery production • Allocation of resources to monitoring activity • Production strategies
DecisionsWho needs to be involved? • Agencies (federal, state and local) • Tribes • Stakeholders (fishing groups, wild fish advocates) • Public
DecisionsHow to enhance credibility and acceptance? • Scientific Guidance • Clear role for scientists in decision-making process • Technical Work Group • selected for knowledge in applicable disciplines • Independent Science Advisors • used to provide peer review
DecisionsHow to enhance credibility and acceptance? • Public Involvement • Access to data • Open meetings • Public deliberation and decision-making • Public input
Summary • Natural resource projects like this are experiments - some learning must occur by doing • Risk can be analyzed and incorporated into decisions (managed) despite uncertainty
Summary • Learning and decision-making processes are complex and require a structure that encourages: • participation by affected parties • open access to information • sound scientific process • transparent process that incorporates evolving knowledge into project decisions