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  1. Phytoplankton - A Simple Guide | WHOI

    Nov 6, 2025 · What are Phytoplankton? Phytoplankton are mostly microscopic, single-celled photosynthetic organisms that live suspended in water. Like land plants, they take up carbon …

  2. A Day in the Life of a Phytoplankter - Woods Hole Oceanographic …

    Jan 24, 2013 · Earth's vast oceans teem with innumerable microscopic plants that make the fertility and abundance of the United States’ Grain Belt look like, well, a drop in the ocean. …

  3. Plankton - Woods Hole Oceanographic Institution

    Phytoplankton produce their own food by lassoing the energy of the sun in a process called photosynthesis. So for sunlight to reach them, they need to be near the top layer of the ocean. …

  4. Ocean Topic: Biological Carbon Pump

    Nov 15, 2024 · What is the biological carbon pump? When sunlight hits the ocean’s surface waters, it stimulates tiny marine plants called phytoplankton to photosynthesize. This process …

  5. Carbon Cycle - Woods Hole Oceanographic Institution

    May 7, 2025 · The oceans play a particularly important role in the carbon cycle. Surface waters exchange gases with the atmosphere, absorbing and releasing carbon dioxide, oxygen, and …

  6. Phytoplankton – Woods Hole Oceanographic Institution

    Much of marine life begins as microscopic larvae—so tiny, delicate, and scattered in hard-to-reach parts…

  7. Sunlit Zone - Woods Hole Oceanographic Institution

    Dec 19, 2024 · Through photosynthesis, phytoplankton also play a key role in removing carbon dioxide from the atmosphere and are therefore essential for fighting climate change. …

  8. Iron Fertilization - Woods Hole Oceanographic Institution

    Mar 29, 2024 · Iron fertilization is a technique that would artificially add iron to the ocean’s surface, triggering massive blooms of phytoplankton that could remove substantial amounts of …

  9. Does the ocean produce oxygen? - Woods Hole Oceanographic …

    Most algae exist as single cells that make up what we call phytoplankton. (Phyto means plant-like. Plankton are tiny organisms that float in the water.) Diatoms are single-celled algae that build …

  10. Plankton, By Any Other Name - Woods Hole Oceanographic …

    Nov 6, 2025 · Plankton are the diverse collection of organisms found in water that provide a crucial source of food to many small and large aquatic organisms, such as bivalves, fish and …