Dinitrogen (N2) fixation (the reduction of atmospheric N2 to ammonium by specialized
prokaryotic microbes), represents an important input of fixed nitrogen and contributes …

Marine waters are generally considered to be nitrogen (N) limited and are therefore
favourable environments for diazotrophs, ie organisms converting atmospheric N 2 into …

We examined rates of N2 fixation from the surface to 2000 m depth in the Eastern Tropical
South Pacific (ETSP) during El Niño (2010) and La Niña (2011). Replicated vertical profiles …

Dinitrogen (N2) fixation was investigated together with organic matter composition in the
mesopelagic zone of the Bismarck (Transect 1) and Solomon (Transect 2) Seas (Southwest …

Marine nitrogen (N2) fixation supports significant primary productivity in the global ocean.
However, in one of the most productive regions of the world ocean, the northern Humboldt …

N 2 fixation by marine pelagic prokaryotes plays a critical role in supplying new N to the
ocean, and there is growing evidence that oceanic N 2 fixation is generally enhanced in …

Heterotrophic dinoflagellates bearing unicellular cyanobacterial symbionts are common
within the order Dinophysiales. However, the ecological role of these symbionts is unclear …

The present study depicts diversity, abundance and activity of nitrogen (N 2) fixing bacterial
communities in the coastal sediments of southeastern Arabian Sea (SEAS). The diversity of …

Heterocystous filamentous cyanobacteria are regarded as the main N2‐fixing organisms
(diazotrophs) in the Baltic Sea. However, some studies indicate that picoplankton may also …

In this study we investigated the environmental factors associated with biological nitrogen
(N) fixation (BNF) in water, sediments, and riparian soil along a polluted river (Suquía River …