Where plankton suffers, so does the entire ocean food chain. When environmenmental conditions change, often triggered by too much of a nutrient—such as nitrogen or phosphorus from fertilizer ...

The diagram shows how mercury can accumulate in the food chain. In the sea, tiny animals and plants called plankton absorb the mercury compounds. When the plankton are eaten by small fish ...

Because plankton are so foundational to the food chain, tracking them is crucial for understanding the state of the ocean's ecosystems. With the help of NASA's Plankton, Aerosol, Cloud, Ocean ...

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