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 …

Nitrogen, as a building block in the structures of nucleic and amino acids, porphyrins, and
amino sugars, is a fundamental player in many biogeochemical cycles. 1 It also shares with …

The bacteria that mediate the anaerobic oxidation of ammonium (anammox) are detected
worldwide in natural and man-made ecosystems, and contribute up to 50% to the loss of …

For decades, the conversion of organic nitrogen to dinitrogen gas by heterotrophic bacteria,
termed heterotrophic denitrification, was assumed to be the main pathway of nitrogen loss in …

Anaerobic ammonium oxidizing (anammox) bacteria are detected in many natural
ecosystems and wastewater treatment plants worldwide. This study describes the …

Anaerobic ammonium oxidation (anammox) as an important process of nitrogen cycle has
been studied in estuarine environments. However, knowledge about the dynamics of …

Estuarine systems are the major conduits for the transfer of nitrate from agricultural and other
terrestrial-anthropogenic sources into marine ecosystems. Within estuarine sediments some …

Laboratory and field studies have indicated that anaerobic ammonium oxidation (anammox)
is an important process in the marine nitrogen cycle. In this study 11 additional anoxic …

Reduced fishery harvests and increased consumer demand for seafood have precipitated
an increase in intensive fish farming, predominantly in coastal and open ocean net-pens …

Nitrification is the process whereby ammonium (NH4 þ) is oxidized to nitrite (NO2 À) and
then to nitrate (NO3 À). It thus links the most oxidized and most reduced components of the …