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AMCC/WWF Roundtable Discussion on Climate Change

AMCC/WWF Roundtable Discussion on Climate Change. How Might Fish Respond to a Warming Bering Sea – The Physiological Context. by Jeffrey Short, Ph.D. Science Advisor, Alaska Marine Conservation Council. Anchorage, Alaska June 27, 2006. A Cold-Blooded Response To Global Warming.

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AMCC/WWF Roundtable Discussion on Climate Change

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  1. AMCC/WWF Roundtable Discussion on Climate Change How Might Fish Respond to a Warming Bering Sea – The Physiological Context byJeffrey Short, Ph.D. Science Advisor, Alaska Marine Conservation Council Anchorage, AlaskaJune 27, 2006

  2. A Cold-Blooded Response To Global Warming.........

  3. Growth Rate vs Temperature & Food

  4. Development Time vs Temperature

  5. Sub-Arctic Ocean Production Cycle

  6. Thermal Constraints on Population Size

  7. Warming-Induced Northward Range Extension: Freshwater Fish

  8. Trade-offs Between Foraging, Structural and Storage Energy YOY Juvenile Storage Structure

  9. Bering Sea Food Web: 1980s

  10. Food-Web Stresses Shrinking Primary Production Increased Apex Predators Increased Respiration Demand

  11. Ecosystem Resiliency – What Do We Want? Maintain Food-Web Structure? Promote Diversity? Promote Fishing Opportunities? Avoid Species Extinctions?

  12. Thermal Constraints on Population Size

  13. Cycles Reflect Change

  14. Spring Winter Spring Winter Spring Winter Bioenergetics 101 Energy content of fish varies seasonally Energy Phenology in Herring Energy Density

  15. Cycles Reflect Change in Structural and Storage Energy

  16. Nutritional Analysis Reveals Differences in Habitat Quality Lynn Canal Fred. Sound

  17. Nutritional Analysis Reveals Energy Sources Depend on Age

  18. Cycles Reflect Change

  19. Cycles Reflect Change

  20. Cycles Reflect Change

  21. Cycles Reflect Change

  22. Cycles Reflect Change

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