picoplankton en · NOUN
Etymology
From pico- + plankton.
Meanings
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(uncountable) The plankton composed of cells between 0.2 and 2 micrometers.
He and P. W. Johnson confirmed the recent discovery of a species of photosynthetic picoplankton, using electron microscopes to perceive fluorescence produced by the chlorophyll of the organisms.
2007 January 9, Douglas Martin, “John Sieburth, 79, Who Studied Various Types of Marine Life, Dies”, in New York Times:
Coordinates
mesoplankton (0.2-20mm) · nanoplankton (2-20μm) · macroplankton (2-20 cm) · picoplankton (0.2-2μm) · megaplankton · microplankton (20-200μm) · femtoplankton