nekton

/ˈnɛktɑn/
noun
  1. Aquatic animals that can swim actively and move independently of water currents, such as fish, squid, and marine mammals.
    • Unlike plankton, nekton can travel long distances against the current.
    • Nekton includes creatures like tuna, dolphins, and sea turtles.
    • Scientists study nekton to understand ocean food webs.
Antonyms
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