Dr. Tanja Stratmann’s project, titled “Nitrogen Cycling in Modern Sponges with Clues About Their Role in Past Oceans” (SPYCLING for short), focuses on marine sponges as representatives of the oldest ...

The marine nitrogen cycle is crucial to sustaining ocean productivity, with biological nitrogen fixation representing a primary mechanism by which inert atmospheric nitrogen is converted into ...

The Thaumarchaeota play a key role in the marine nitrogen cycle. They gain energy for growth by converting ammonia, which is the most reduced form of inorganic nitrogen, to a more oxidized form: ...

A new study examined nitrogen fixation among diazotrophs--microorganisms that can convert nitrogen into usable form for other plants and animals -- living among sargassum. Sargassum, a brown ...

The Early Triassic represents a critical interval for ecosystem recovery following the end-Permian mass extinction. This interval was marked by extreme and highly volatile global conditions, including ...

Limnology and Oceanography, Vol. 66, No. 7 (July 2021), pp. 2855-2867 (13 pages) Dinitrogen (N₂) fixation is a major source of bioavailable nitrogen to oligotrophic ocean communities. Yet, we have ...