Marine diazotrophs convert dinitrogen (N 2) gas into bioavailable nitrogen (N), supporting
life in the global ocean. In 2012, the first version of the global oceanic diazotroph database …

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 …

Fixed nitrogen (N) limits productivity across much of the low-latitude ocean. The magnitude
of its inventory results from the balance of N input and N loss, the latter largely occurring in …

Here we report N 2 fixation rates from a∼ 4000 km transect in the western and central
tropical South Pacific, a particularly undersampled region in the world ocean. Water samples …

Abstract Diazotrophy in the Indian Ocean is poorly understood compared to that in the
Atlantic and Pacific Oceans. We first examined the basin‐scale community structure of …

A recently described symbiosis between the metabolically streamlined nitrogen‐fixing
cyanobacterium UCYN‐A and a single‐celled eukaryote prymnesiophyte alga is widely …

We describe a new mechanism for the island mass effect fueled by nitrogen fixation. The
nitrogen fixation activities and δ15N of suspended particles in the surface water in the South …

Nitrogen fixation in temperate oceans is a potentially important, but poorly understood
process that may influence the marine nitrogen budget. This study determined seasonal …

Dinitrogen (N2) fixation rates were investigated in the euphotic layer of the Bismarck and
Solomon Seas using 15N2 incubation assays taking into account both the particulate and …

The genus Trichodesmium is recognized as an abundant and major diazotroph in the
Kuroshio, but the reason for this remains unclear. The present study investigated the …