Simple categories matching planktonic:

• animal,
• microorganism,
• fauna,
• species,
• organism,
• crustacean,
• feeder,
• plant,
• invertebrate,
• prey,
• cephalopod,
• predator,
• creature,
• algae,

Members with property planktonic:

• yeast,
• dinoflagellate,
• copepod,
• krill,
• algae,
• crustacean_zooplankton,
• daphnia,
• diatom,
• fungi,
• gastropod,
• appendicularia,
• swimming_shrimp,
• radiolarian_protozoa,
• copepod_larva,
• larva,
• tiny_copepod,
• hemipteran,
• cyclops,
• mollusc,
• crustacean,
• shrimp,
• larger_ciliate,
• siphonophore,
• jellyfish,
• chaetognath,
• salp,
• arrow_worm,
• medusa,
• amphipod,
• phytoplankton,
• small_crustacean,
• conodont,
• pupa,
• arrowworm_sagitta,
• prawn,
• polychaete,
• protozoan,
• blue-green_algae,
• crustacean_larva,
• larval_insect,
• tunicate,
• mollusk,
• young_polychaete,
• isopod,
• decapod,
• foraminifer,
• crab_larva,
• fish,
• flagellate,
• fish_larva,
• whole_phytoplankton,
• ctenophore,
• bacteria,
• planktonic_crustacean,
• protozoa,
• certain_algae,
• hatchling_squid,
• naked_flagellate,
• foraminifera,
• zooplankton,
• small_fish,
• small_copepod,
• worm,
• radiolarian,
• shrimp_larva,
• dipteran,
• sagitta,
• larval_fish,
• oyster,
• ostracod,
• larval_prawn,
• rotifer,
• crabs,
• insect_larva,