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Lecture 3: Climate Change & The Oceans

Lecture 3: Climate Change & The Oceans. www.solarpowernotes.com. www.skeptical science.com. Nuccitelli et al. (2012). Stress in the Marine Environment. Multiple Stressors in the Marine Environment. Predators. Light limitation. Competition. Temperature.

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Lecture 3: Climate Change & The Oceans

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  1. Lecture 3: Climate Change& The Oceans

  2. www.solarpowernotes.com

  3. www.skeptical science.com

  4. Nuccitelli et al. (2012).

  5. Stress in the Marine Environment

  6. Multiple Stressors in the Marine Environment Predators Light limitation Competition Temperature

  7. Stressors brought about by climate change • Alteration of ocean chemistry/Ocean acidification • Increased seawater temperature • Changes in salinity • Changes in currents and sedimentation • Invasive species • Loss of habitat • Sea-level rise

  8. Alteration of Ocean Chemistry • Increasing accumulation of CO2 in sea leads to ocean acidification

  9. Riebesell et al, Nature, 2000

  10. Sea Level Rise

  11. NOAA

  12. Global Sea Level Rise Simulator • http://geology.com/sea-level-rise/

  13. Effects on Intertidal Ecosystems • Increased storms lead to more frequent wave activity

  14. Effects on Intertidal Ecosystems • Sea level rise would drown some habitats and compact others

  15. Effects on Coral Reefs • Increased sea temperatures cause coral bleaching www.reefteach.com.au

  16. Effects on Coral Reefs • Reduction in calcification rate due to increased CO2 De’ath et al, Science, 2008

  17. Effects on Seagrass Ecosystems • Increased erosion leads to increased turbidity • Alteration of range Short et al. 2007

  18. Effects on Kelp Ecosystems • Reduction in range

  19. Effects on Kelp Ecosystems • Increased frequency of El Nino leads to reduction of nutrient supply • Increases in storms, sedimentation, and turbidity

  20. Impacts to Biodiversity

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