In nearshore marine systems, increases in nitrogen can ... Some have even suggested that alterations to the nitrogen cycle may lead to an increased risk of parasitic and infectious diseases ...

Marine nitrogen fixation is a crucial process in the ocean's nitrogen cycle, where certain microorganisms, known as diazotrophs, convert atmospheric nitrogen (N 2) into forms that can be utilized ...

The nitrogen cycle steps are kind of like a currency exchange ... but it's the way that nitrogen is built as a nutrient in ...

Limnology and Oceanography, Vol. 54, No. 4 (Jul., 2009), pp. 1403-1411 (9 pages) This study investigated the bulk nitrogen isotopic composition and fractionation of marine and freshwater cyanobacteria ...