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Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

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Page 1: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

Physical Controls on Phytoplankton

Would you expect a fall bloom of phytoplankton? What would end it?

Page 2: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• What do phytoplankton need to grow?– Light– Nuitrients

Page 3: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Where are Nutrients?

Page 4: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Why?

Page 5: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Where is the light?

• Where is the sun?

• So for phytoplankton to grow, nutrients must be brought to where the light is.

• Water must move up!

• How?

Page 6: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Mixed layer cycle

Page 7: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• When bloom?

• When enough

light?

• When shallow

enough?

Page 8: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 9: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Coastal Upwelling.

Page 10: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Where is coastal upwelling important?

Page 11: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 12: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 13: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• What about the open ocean?

Page 14: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• What open ocean winds can drive upwelling?

Page 15: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Results…

Page 16: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• What happens next?

Page 17: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Iron Story…

Page 18: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• Iron Story -- winds carry dust. Atmosphere matters too!

Page 19: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 20: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 21: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 22: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
Page 23: Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?

• What happens after the Nutrients come up into the light?


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