Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end...
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Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end it?
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Transcript of Physical Controls on Phytoplankton Would you expect a fall bloom of phytoplankton? What would end...
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Physical Controls on Phytoplankton
Would you expect a fall bloom of phytoplankton? What would end it?
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• What do phytoplankton need to grow?– Light– Nuitrients
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• Where are Nutrients?
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• Why?
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• 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?
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• Mixed layer cycle
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• When bloom?
• When enough
light?
• When shallow
enough?
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• Coastal Upwelling.
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• Where is coastal upwelling important?
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• What about the open ocean?
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• What open ocean winds can drive upwelling?
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• Results…
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• What happens next?
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• Iron Story…
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• Iron Story -- winds carry dust. Atmosphere matters too!
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• What happens after the Nutrients come up into the light?