成せい魚ぎょ

noun

adult fish

Refers to a fish that has reached maturity, as opposed to a juvenile or fry. Used in biological, fisheries, and everyday contexts.

• この池いけには成せい魚ぎょがたくさんいる。

  There are many adult fish in this pond.

• 稚ち魚ぎょから成せい魚ぎょになるまで約やく一いち年ねんかかる。

  It takes about a year for a fry to become an adult fish.