A planetary-scale understanding of the ocean ecosystem, particularly in light of climate
change, is crucial. Here, we review the work of Tara Oceans, an international …

Photosynthesis evolved in the ocean more than 2 billion years ago and is now performed by
a wide range of evolutionarily distinct organisms, including both prokaryotes and …

Ocean net primary production (NPP) results from CO2 fixation by marine phytoplankton,
catalysing the transfer of organic matter and energy to marine ecosystems, supporting most …

Nitrogen fixation has a critical role in marine primary production, yet our understanding of
marine nitrogen-fixers (diazotrophs) is hindered by limited observations. Here, we report a …

Oceanic phytoplankton species have highly efficient mechanisms of iron acquisition, as they
can take up iron from environments in which it is present at subnanomolar concentrations. In …

Methylmercury is a neurotoxin that bioaccumulates from seawater to high concentrations in
marine fish, putting human and ecosystem health at risk. High methylmercury levels have …

Marine microeukaryotes play a fundamental role in biogeochemical cycling through the
transfer of energy to higher trophic levels and vertical carbon transport. Despite their global …

At high latitudes, the biological carbon pump, which exports organic matter from the surface
ocean to the interior, has been attributed to the gravitational sinking of particulate organic …

‘Oceans are hugely complex’: modelling marine microbes is key to climate forecasts Skip to main
content Thank you for visiting nature.com. You are using a browser version with limited support …

Diatoms are one of the most successful group of photosynthetic eukaryotes in the
contemporary ocean. They are ubiquitously distributed and are the most abundant primary …