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 Using ecology to help solve conservation problems: informing salmon recovery Identifying population structure Estimating risk of extinction Prioritizing management actions to help the fish
Technical needs for informing recovery planning Identify (1) population viability criteria, (2) ESU viability criteria. Determine causes of declines Offer technical tools to explore alternative routes to achieving recovery goals and how to document progress Recovery goals include four components:
1) 2) 3) 4) abundance productivity diversity spatial structure Diversity 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. Spatial Structure Definition - The geographic distribution of fish Rationale - Widely distributed population spreads risk Identify (1) population viability criteria, (2) ESU viability criteria. Determine causes of declines Offer technical tools to explore
alternative routes to achieving recovery goals and how to document progress What actions are needed to achieve salmon recovery? The role of science is to create technically defensible options to answer this question Achieving needed improvements
Habitat Harvest Hatcheries Hydropower Ocean and climate H a b ita t
5 H y d ro p o w e r 1 2 8 T re n d 7 H a rv e s t
6 H a tc h e r y P o p u la t io n G ro w th R a te 3 4 9 10 U nknow n
E ffe c ts E c o lo g ic a l C o n d itio n s Abundance Habitat fixes: conceptual overview of watershed function Landscape Processes Landscape processes and
land use affect habitat Habitat affects abundance, productivity, spatial distribution and diversity of salmon Land use Habitat Conditions Biological Response
Habitat-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?
Ocean conditions, climate change, rate of human development, etc. H a b ita t 5 H y d ro p o w e r 1 2 8 T re n d
7 H a rv e s t 6 H a tc h e r y P o p u la t io n G ro w th R a te 3 4 9
10 U nknow n E ffe c ts E c o lo g ic a l C o n d itio n s Abundance
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