Nitrogen (N) is a key element for life in the oceans. It controls primary productivity in many
parts of the global ocean, consequently playing a crucial role in the uptake of atmospheric …

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 …

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 …

Abstract The greater Agulhas Current region is an important component of the climate
system, yet its influence on carbon and nutrient cycling is poorly understood. Here, we use …

The biological fixation of dinitrogen (N2) by marine prokaryotes called diazotrophs is the
major source of nitrogen to the ocean, estimated at~ 106-120 Tg N y-1 (Gruber, 2004; …

Abstract The Agulhas Current plays a major role in heat and salt exchange between the
Indian and Atlantic Oceans, yet little is known of its influence on ocean fertility. To investigate …

Biological dinitrogen (N 2) fixation exerts an important control on oceanic primary production
by providing bioavailable form of nitrogen (such as ammonium) to photosynthetic …

Biological nitrogen fixation is a key process balancing the loss of combined nitrogen in the
marine nitrogen cycle. Its relevance in upwelling or high nutrient regions is still unclear, with …

Nutrient stoichiometry (eg, nitrate+ nitrite to soluble reactive phosphorus, refer to N+ N/SRP,
N/P hereafter) governs growth, competition and niche partitioning of phytoplankton in the …

Marine diazotrophs convert dinitrogen (N 2) in seawater into bioavailable nitrogen (N),
contributing approximately half of the external input of bioavailable N to the global ocean. A …