Title: Salmon recovery does not just mean more fish
1- Salmon recovery does not just mean more fish
- Management decisions are driven by politics
logisticsscience can only contribute if we
provide technically defensible options that
include bounds of certainty
2- Using ecology to help solve conservation
problems informing salmon recovery -
- Identifying population structure
- Estimating risk of extinction
- Prioritizing management actions to help the fish
Goals
How to achieve goals?
3Technical needs for informing recovery planning
- Identify
- population viability criteria,
- ESU viability criteria.
- Determine causes of declines
- Offer technical tools to explore alternative
routes to achieving recovery goals and how to
document progress
4Recovery goals include four components 1)
abundance 2) productivity 3) diversity 4)
spatial structure
5Diversity Definition - Variation in
characteristics of fish (e.g. age composition,
spawn timing, migration pathways, genetic
composition.) Rationale - Provides flexibility to
persist in the presence of short- and long-term
variation in the environment.
6Spatial Structure Definition - The geographic
distribution of fish Rationale - Widely
distributed population spreads risk
7- Identify
- population viability criteria,
- ESU viability criteria.
- Determine causes of declines
- Offer technical tools to explore alternative
routes to achieving recovery goals and how to
document progress
8What actions are needed to achieve salmon
recovery?
- The role of science is to create technically
defensible options to answer this question
9Achieving needed improvements
- Habitat
- Harvest
- Hatcheries
- Hydropower
- Ocean and climate
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11Habitat fixes conceptual overview of watershed
function
- Landscape processes and land use affect habitat
- Habitat affects abundance, productivity, spatial
distribution and diversity of salmon
12Habitat-related questions for recovery planning
- Where have habitat-forming processes been altered
and resulted in habitat loss or reduction in
quality? - How have reductions in the amount or quality of
habitat altered the status (abundance,
productivity, diversity, spatial structure) of
listed salmon? - What (alternative sets of) restoration or
protection actions are necessary for recovery in
each watershed?
13Ocean conditions, climate change, rate of human
development, etc.
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