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Two nurse sharks hover over a baited cage
Lesson Plan

Ocean Primary Production

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The Amazon River carries all the rainwater that lands in the Amazon rainforest, covering some 2.1 million square miles, into the ocean. And with it, it carries vital nutrients like phosphorus, nitrogen and silicon.
Article

Thirty Days to Submission: How I Made a Video for Ocean180

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Kelps are large, brown algae that grow along coasts around the world, especially in cooler regions.
Article

With Every Breath You Take, Thank the Ocean

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A bloom of algae from up above
Article

What Exactly Is a Red Tide?

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One of the most impressive photosynthesizers is a cyanobacterium called Prochlorococcus. It is estimated to be more abundant than any other photosynthesizer on the planet, and to be responsible for producing 20 percent of the oxygen in the atmosphere.
Video

Meet the obscure microbe that influences climate, ocean ecosystems, and perhaps even evolution

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A spiraled diatom with spines.
Photo

A Diatom Helix

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