Modifiers matching plankton:

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

Simple categories matching oceanic:

• fish,
• species,
• quantity,
• hazard,
• predator,
• influence,
• boundary,
• animal,
• plankton,
• phenomenon,
• wave,
• process,
• location,
• creature,
• mammal,
• island,
• trench,
• motion,
• event,
• storm,
• thing,
• condition,
• activity,
• jet,
• billfish,
• current,
• mechanism,
• system,
• cnidarian,
• phytoplankton,
• feature,
• migrator,