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Food Chain and the Diversity of Life

Nutrients deposited in coastal marshes and rising from the ocean floor are used by phytoplankton – microscopic ocean plants – to perform photosynthesis.  Phytoplankton are at the very base of the ocean food chain. They are particularly abundant in marshes and wherever upwelling occurs, as are the tiny animal plankton – zooplankton – which consume them. 

These billions upon billions of plant and animal plankton support an enormous abundance of other life, both in and out of the water.


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