9 Critical Factors in Plankton Abundance
9 Critical Factors in Plankton Abundance
9 Critical Factors in Plankton Abundance
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Problem:<br />
On global and historical scale: is nitrogen<br />
limit<strong>in</strong>g oceanic productivity, given<br />
exchanges between atmosphere and ocean.<br />
1. Ocean has abundant cyanobacteria –<br />
nitrogen fixers<br />
2. Denitrification occurs <strong>in</strong> anoxic<br />
locations (sediments, anoxic waters)<br />
and this returns N 2 to the atmosphere.<br />
3. Balance is not so clear.
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