遊ゆう泳えい動どう物ぶつ

noun

nekton

Technical term in marine biology for aquatic animals that swim actively, as opposed to plankton.

• 遊ゆう泳えい動どう物ぶつには魚ぎょ類るいやイカ、クジラなどが含ふくまれる。

  Nekton includes fish, squid, whales, and the like.