Category Nuances matching plankton:

• larger,
• net,
• animal,
• motile,
• floating,
• gelatinous,
• pelagic,
• marine,
• large,
• bioluminescent,
• unicellular,
• small,
• abundant,
• oceanic,
• microscopic,
• crustacean,

Members for simple category plankton:

• siphonophore,
• fish,
• krill,
• jellyfish,
• copepod,
• medusa,
• terrestrial_plant,
• flagellate,
• adult_copepod,
• larva,
• diatom,
• protist,
• ctenophore,
• chaetognath,
• crustacean_larva,
• salp,
• ciliate,
• barnacle_larva,
• cnidarian,
• peridinian,
• algae,
• dinoflagellate,
• centric_diatom,
• daphnia,
• zoo_plankton,
• phytoplankton,
• small_larva,
• ciliate_flagellate,
• protozoan,
• rotifer,
• whale,
• prawn,
• sunfish,