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Www.cses.washington.edu/cig/ A few lessons learned from a pilot project in sustainability science Nathan Mantua Climate Impacts Group Center for Science.

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Presentation on theme: "Www.cses.washington.edu/cig/ A few lessons learned from a pilot project in sustainability science Nathan Mantua Climate Impacts Group Center for Science."— Presentation transcript:

1 www.cses.washington.edu/cig/ A few lessons learned from a pilot project in sustainability science Nathan Mantua Climate Impacts Group Center for Science in the Earth System JISAO, University of Washington Seattle, WA 98195 May 8, 2006 Fisheries 497A

2 www.cses.washington.edu/cig/ El Niño has big Impacts Accurate El Niño forecasts should be of great value to people in sensitive regions like the west coast of the Americas … shouldn’t they?

3 www.cses.washington.edu/cig/ Origins of the CIG project  There were high hopes for translating advances in climate science into real benefits for society in the early 1990s –The El Niño forecasting problem appeared to be solved, but there wasn’t a national infrastructure for translating climate forecasts into useful and useable resource forecast information –Global warming impacts studies were being reported by the IPCC at continental scales, but what did these mean to “real people”?

4 www.cses.washington.edu/cig/ The Climate Impacts Group First of 9 U.S. regional integrated assessment teams (RISAs).  Established in 1995  Based at the University of Washington (Seattle) with collaborations in Oregon and Idaho  Funded largely by the National Oceanic and Atmospheric Administration’s Climate Program Office (NOAA/CPO)

5 www.cses.washington.edu/cig/ NOAA’s Climate Program: Regional Integrated Science and Assessments

6 www.cses.washington.edu/cig/ The Climate Impacts Group  Water Resources  Fisheries  Forests  Coasts  [Human Health]  [Agriculture] Climate Variability past variations and their impacts ability of institutions to respond to extremes Climate Change regional consequences of global warming adaptation/vulnerability to climate change Increase regional resilience to the impacts of climate variability and change Produce science useful to, and used by, the decision-making community OBJECTIVES SECTORS SCOPE of WORK Columbia River Basin

7 www.cses.washington.edu/cig/ Our early findings  Virtually no one was using NOAA’s climate forecasts in the mid-1990s –They were not accurate enough –They were not specific enough to particular resource issues –People didn’t understand what was meant by the probabilistic forecasts May-June- July 2006 Temperature Forecast

8 www.cses.washington.edu/cig/ LESSON 1 Resource agencies make forecasts all the time, and the research community focuses on improving forecasts, but there aren’t always (often?) strong links between these communities

9 www.cses.washington.edu/cig/ How Does CIG Support Adaptation to Climate Variability and Change? ResearchOutreach Decision- support CIG Outreach: Designed to develop (and maintain) ongoing relationships with the stakeholder community Research: Investigating sensitivity and vulnerability to climate variability and change Provides the foundation for decision support and outreach activities Decision- support tools: Designed to facilitate use of climate information in operations and planning

10 www.cses.washington.edu/cig/ Case study: evolution of climate information for salmon management climate impact 1.A fishery oceanography study identifies a climate impact Climate variability explains a large fraction of the space-time variations in 20th Century Pacific salmon catches (and presumably abundance) 2.We (Hare, Mantua, Francis) promote the use of climate information for salmon management by describing the research results at meetings and workshops … yet no managers want to use our results! The response from fishery management staff: “Your work is interesting, but it doesn’t suit our needs” 3.We partner with a NOAA fisheries scientist involved in salmon management to develop a forecast tool they can use In the process, we learn how to match the space-time scales of climate information with those of salmon management, and we learn about limits to predicting coho returns

11 www.cses.washington.edu/cig/ A North-South see-saw in salmon production Warm PDOCool PDOWarm PDO ??? Cool PDO spring chinook returns to the Columbia River mouth (1000s) Alaska pink and sockeye catch (millions) Pacific Decadal Oscillation (PDO)

12 www.cses.washington.edu/cig/ Commercial Sockeye Salmon Catches Since 1883 Bristol Bay, Alaska Composition Commercial catch (millions) Hilborn et al. 2003, PNAS

13 www.cses.washington.edu/cig/ Recruits-per-spawner for Bristol Bay sockeye (by major river system) Year Hilborn et al. 2003, PNAS

14 www.cses.washington.edu/cig/ Lesson 2 The scales considered in our research were no match for the scales most important for salmon managers – Our work was interesting, but unusable

15 www.cses.washington.edu/cig/ OPI (hatchery) coho marine survival Why? Leading hypothesis: changes in ocean conditions impact the entire marine food-web

16 www.cses.washington.edu/cig/ coastal ocean impacts on coho marine survival (Logerwell et al. 2003, Fish. Oceanogr.) 1000 smolts 10’s to 100’s post-smolts in 1st summer A few to ~100 adults in 2nd summer key factors? Stratification (SST) spring transition date alongshore transport (Sea Level) ? 1st spring at sea 1st winter at sea key factors? Stratification (SST) winter winds, downwelling and transport ?

17 www.cses.washington.edu/cig/ 4 index Ocean Conditions Model “hindcasts” for OPI coho marine survival, 1969-1998 Logerwell et al. 2003, Fish. Oc. R 2 =.75

18 www.cses.washington.edu/cig/ Correlations and Predictability Implications? –“ocean conditions” are the net result of essentially random combinations of sometimes independent processes SST0 SprTr Upwelling Winds Spr Tr 0.22 Upw. Winds -0.17 -0.46 SST1 0.15 0.27 -0.16 (1970-1998)

19 www.cses.washington.edu/cig/ LESSON 3 Environmental predictability for coho is VERY LIMITED -- this situation may be more the rule than the exception for climate sensitive resources

20 www.cses.washington.edu/cig/ Life in uncertain environments Bet hedging behaviors one evolutionary response:  diversity of time-space habitat use –a variety of sensitivities for different streams (e.g. Hymer WDFW) –different ocean sensitivities (e.g. Bottsford et al.) for different stocks, incl. Hatchery vs. wild fish

21 www.cses.washington.edu/cig/ Coho salmon, at the metapopulation level, hedge their bets by migrating at different times of the year

22 www.cses.washington.edu/cig/ fishery management

23 www.cses.washington.edu/cig/ Hatcheries: a fish is a fish Spring transition date Mar Apr May June July Wild coho smolt migration Hatchery coho releases Ex: smolt migration timing in wild and hatchery coho

24 www.cses.washington.edu/cig/ So what? (what I’ve learned)  Sustaining “fish” and sustaining a “fishery” are not the same things –expectations and actions for these two goals are often at odds with each other  right now, fishery managers generally failing to deal with “climate” –true for year-to-year and decade-to-decade variations

25 www.cses.washington.edu/cig/ What are we managing, and why? (McEvoy 1996: The Fisherman’s Problem)  What is a fishery? –(1) an ecosystem; (2) a group of people working, and (3) a system of social control

26 www.cses.washington.edu/cig/ Sustainability? Saving the fish  eliminate harvests  restore diversity –major hatchery reform, even closures if needed  restore and protect habitat –remove barriers to fish passage (remove some dams)  accept variability –acknowledge a lack of predictability Saving the fishery  keep seasons open as long as possible  focus on biomass/numbers  tweak the status quo –fish passage, hatcheries  eliminate variability –use hatcheries, divorce fish production from habitat –emphasize prediction ECOLOGY POLITICS-ECONOMICS- ECOLOGY

27 www.cses.washington.edu/cig/ Where predictability matters (Holling 1993 Ecological Applications) 1st stream science  system is predictable, science of parts –ex: the population  Experimental, seeks explanation and prediction  implies we need certainty before taking action Command and Control Management  Problem is perceived, a solution for its control is developed (e.g. low salmon production, build a hatchery)  Reduce variability to make the system more predictable

28 www.cses.washington.edu/cig/ Where Predictability doesn’t matter 2nd stream science Unpredictable, science of integration –ex: the ecosystem, the fishery Comparative, seeks understanding, accepts inherent unknowability and unpredictability The Golden Rule “Resource management should strive to retain critical types and ranges of variations in ecosystems” (Holling and Meffe 1996)

29 www.cses.washington.edu/cig/ The problem?  We can’t solve 2 nd stream problems with 1 st stream approaches

30 www.cses.washington.edu/cig/ Summary and Conclusions  climate information has the potential to improve resource management –short term help for salmon fisheries through monitoring+biophys models –Longer range guidance for the trajectory of regional climate changes in response to global warming  environmental prediction issues now a source of conflict between managing fish and fisheries for sustainability –scientists must own up to the fact that we cannot predict the future

31 www.cses.washington.edu/cig/ Saving the fish  Embrace uncertainty –wild salmon evolved behaviors that cope with environmental uncertainty  restore natural climate insurance for salmon –do this by restoring lost diversity of life history behaviors; this diversity is directly linked to availability of healthy, complex freshwater habitat  Save the Fishery –People must be part of the solution

32 www.cses.washington.edu/cig/ Saving the Fishery  Save the Fish  Rethink/revise goals of fishery management –Industrial fishery model is doomed to failure (lots of fish = healthy fishery) because it fails to deal with the unknowability in the fishery system


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