Phytoplankton - MIT Climate Portal
2022年3月14日 · By taking up carbon dioxide (CO2) from the air, phytoplankton play a large role in the natural carbon cycle, helping to regulate the amount of CO2 in the atmosphere and keep the Earth’s climate in balance.
Ocean Science: The power of plankton | Nature
2012年2月29日 · Phytoplankton comprise two main groups: photosynthetic cyanobacteria and the single-celled algae that drift in the sunlit top layers of oceans. They provide food, directly or...
What are Phytoplankton? - NASA Earth Observatory
Through photosynthesis, phytoplankton consume carbon dioxide on a scale equivalent to forests and other land plants. Some of this carbon is carried to the deep ocean when phytoplankton die, and some is transferred to different layers of the ocean as phytoplankton are eaten by other creatures, which themselves reproduce, generate waste, and die.
Carbon Cycle - Woods Hole Oceanographic Institution
2024年9月13日 · Plant-like phytoplankton living in the ocean convert carbon dioxide into sugars that feed marine ecosystems.
The ocean carbon cycle | IAEA - International Atomic Energy …
Through one of the primary carbon storage mechanisms, the biological carbon pump, phytoplankton (microscopic marine plants at the bottom of the oceanic food chain) take up CO 2 in the surface ocean and as part of photosynthesis convert it to particulate and dissolved organic carbon - carbon-containing molecules typically produced by living things.
Zooplankton and the Ocean Carbon Cycle | Annual Reviews
Climate change is expected to broadly alter carbon cycling by zooplankton and to have direct impacts on key species. Keyword (s): biological pump, climate change, efficiency, food web, metabolism. Article metrics loading... /content/journals/10.1146/annurev-marine-010814-015924. 2017-01-03. 2024-11-12. Full text loading...
Effects of phytoplankton physiology on global ocean ... - Science
2023年7月26日 · From a climate perspective, changes in dN:P and pN:P affect marine primary production and the vertical export and remineralization of particulate organic matter (POM) in the ocean, which have an impact on atmospheric carbon dioxide (CO 2) concentration.
The role of biota in the Southern Ocean carbon cycle
2024年4月11日 · For example, phytoplankton photosynthesis transforms carbon dioxide into new particles and dissolved organic carbon. The magnitude of these transformations depends on the unique oceanographic...
The role of phytoplankton photosynthesis in global biogeochemical ...
Phytoplankton biomass in the world's oceans amounts to only ∽1–2% of the total global plant carbon, yet these organisms fix between 30 and 50 billion metric tons of carbon annually, which is about 40% of the total. On geological time scales there is profound evidence of the importance of phytoplankton photosynthesis in biogeochemical cycles.
Cyclic evolution of phytoplankton forced by changes in tropical ...
2021年12月1日 · We posit that eccentricity pacing of phytoplankton evolution contributed to the strong 405,000-year cyclicity that is seen in global carbon cycle records. Similar content being viewed by...