Abstract Subtropical gyres cover 26%–29% of the world's surface ocean and are
conventionally regarded as ocean deserts due to their permanent stratification, depleted …

Biological N2 fixation is an important part of the marine nitrogen cycle as it provides a source
of new nitrogen that can support biological carbon export and sequestration. Research in …

Discrepancies between estimates of oceanic N 2 fixation and nitrogen (N) losses through
denitrification have focused research on identifying N 2-fixing cyanobacteria and quantifying …

Nitrogen fixation is critical for the biological productivity of the ocean, but clear mechanistic
controls on this process remain elusive. Here, we investigate the abundance, activity, and …

Phosphorus (P) is a required element for life. Its various chemical forms are found
throughout the lithosphere and hydrosphere, where they are acted on by numerous abiotic …

Marine N 2 fixing microorganisms, termed diazotrophs, are a key functional group in marine
pelagic ecosystems. The biological fixation of dinitrogen (N 2) to bioavailable nitrogen …

Nitrogen (N2)–fixing microorganisms (diazotrophs) are an important source of biologically
available fixed N in terrestrial and aquatic ecosystems and control the productivity of …

The marine nitrogen (N) cycle controls the productivity of the oceans. This cycle is driven by
complex biogeochemical transformations, including nitrogen fixation, denitrification, and …

Biological dinitrogen fixation provides the largest input of nitrogen to the oceans, therefore
exerting important control on the ocean's nitrogen inventory and primary productivity …

The atmospheric and deep sea reservoirs of carbon dioxide are linked via physical,
chemical, and biological processes. The last of these include photosynthesis, particle …