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 ...

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 ...

New research into the marine phosphorus cycle is deepening ... It identified an "anthropogenic nitrogen pump," which changes the phosphorus cycle and therefore likely coastal biodiversity and ...

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 ...