noun
Sakhalin sturgeon
A species of sturgeon (Acipenser mikadoi) found in the Northwest Pacific, including waters around Japan and Sakhalin. Typically written in katakana as ミカドチョウザメ.
ミカドチョウザメは絶滅危惧種に指定されている。
The Sakhalin sturgeon is designated as an endangered species.
北海道の沿岸でミカドチョウザメが捕獲されたという報告がある。
There are reports that Sakhalin sturgeon have been caught off the coast of Hokkaido.
チョウザメ is the general term for sturgeon; ミカドチョウザメ specifies the Sakhalin sturgeon species.
The name combines ミカド (emperor) and チョウザメ (sturgeon). The exact origin of the 'emperor' element is uncertain, but it likely reflects a majestic or notable quality attributed to this sturgeon species.