What Is The Size Of Plankton?
What Is The Size Of Plankton? Plankton are usually microscopic, often less than one inch in length, but they also include larger species like some crustaceans and jellyfish. Scientists classify plankton in several ways, including by size, type, and how long they spend drifting. How large is the largest plankton? Megaplankton are the largest plankton.