魚ぎょ道どう

noun

fishway; fish ladder; fish migration path

Refers to a structure that allows fish to bypass obstacles like dams, or the natural route taken by a school of fish. The term is used in ecology and civil engineering contexts.

• ダムには魚ぎょ道どうが設せっ置ちされている。

  A fish ladder is installed at the dam.

• この川かわの魚ぎょ道どうを調ちょう査さする。

  We survey the fish migration path in this river.