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Salmon recovery does not just mean more fish Management decisions are driven by politics & logistics—science can only contribute if we provide technically.

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Presentation on theme: "Salmon recovery does not just mean more fish Management decisions are driven by politics & logistics—science can only contribute if we provide technically."— Presentation transcript:

1 Salmon recovery does not just mean more fish Management decisions are driven by politics & logistics—science 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

3 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

4 Recovery goals include four components: 1) abundance 2) productivity 3) diversity 4) spatial structure

5 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.

6 Spatial Structure Definition - The geographic distribution of fish Rationale - Widely distributed population spreads risk

7 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

8 What actions are needed to achieve salmon recovery? The role of science is to create technically defensible options to answer this question

9 Achieving needed improvements Habitat Harvest Hatcheries Hydropower Ocean and climate

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11 Habitat fixes: conceptual overview of watershed function  Landscape processes and land use affect habitat  Habitat affects abundance, productivity, spatial distribution and diversity of salmon Landscape Processes Land use Habitat Conditions Biological Response

12 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?

13 Ocean conditions, climate change, rate of human development, etc.

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