<em>Chaetoceros atlanticus</em> (IMAGE)
Caption
Small differences in salinity and temperature lead to the formation of weak and ephemeral fronts with different phytoplankton communities on each side. Researchers found that several species of the genus Chaetoceros (shown on photo) constituted the majority of the biomass on one side of the front but were virtually absent on the other side.
Credit
Niels Daugbjerg
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