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SlideshowReport

Productivity in Temperate Oceans – Northern Hemisphere

Description
Productivity in temperate oceans
Winter
Low productivity
Days are short and sun angle is low  
Spring
Spring bloom of phytoplankton is quickly depleted
Productivity is limited

Productivity in temperate oceans
Summer
Strong thermocline develops so surface nutrients are not replaced from below
Phytoplankton population remains relatively low
Fall
Thermocline breaks down and nutrients return to the surface
Short-lived fall bloom of phytoplankton
Highest overall productivity occurs in temperate regions
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