Honors ~ Ecosystems 1112

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Honors ~ Ecosystems 1112

  1. 1. Primary Productivity Nutrient Cycling Honors Biology – Edgar October 2011
  2. 9. NPP=GPP-R
  3. 14. phytoplankton Who are the Phytoplankton? Coccolithophore Diatoms Dinoflagellates
  4. 15. Thermocline Depth in meters 0 100 Nutrients Euphotic Zone or Mixed Layer Thermocline 0µM 5µM 10µM 200 0% 50% 100% Light 0° 10° 20° Temperature
  5. 16. Gulf of Maine Data: Wilkinson and Jordan Basins Wilk. Basin Jordan Basin
  6. 17. Redfield Nucleic Acids Lipids Proteins Carbohydrates CO 2 Light Nutrients (N, P, etc) The Redfield Ratio 106 Carbon : 16 Nitrogen : 1 Phosphorus Liebig’s Law: Growth of a “plant” is determined by availability of the single most limiting resource.
  7. 18. Duck?
  8. 26. Nutrient Cycle

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