With all the talk of dead zones caused by phytoplankton, it
is important to understand that this menace is not always so devastating. Under normal conditions phytoplankton is provides
a much needed element in local ecosystems, also directly effecting us as these
little guys produce about half the oxygen that we breath. What causes issues is that; if they hit a
nutrient rich area (caused by nitrogen ritch fertilizer for example) they will
overfeed, creating what’s known as an algae bloom. As the massive amount of plankton begin to
die this process uses oxygen this is normally mitigated by ocean currents
churning the waters and dispersing the less originated waters. When the water is stagnating due to location
or a higher temperature that’s what creates a dead zone and when the real
damage is caused.
So don’t get it twisted, phytoplankton are friends, we just
need to make sure to keep them a little hungry by keeping our fertilizer out of
the oceans.
Source-
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