beluga sturgeon; European sturgeon; Huso huso
Refers specifically to the beluga sturgeon (Huso huso), a large species of sturgeon known for its caviar.
The beluga sturgeon is one of the largest freshwater fish in the world.
The eggs of the beluga sturgeon are prized as high-grade caviar.
Katakana spelling is standard for this species name; usually written in kana.
Kanji form is rare and mainly encountered in older or specialized texts.
Compound of 大 (おお, 'large') + 蝶鮫 (ちょうざめ, 'sturgeon'). The reading ちょうざめ is a combination of 蝶 (ちょう, 'butterfly') and 鮫 (さめ, 'shark'), likely referring to the fish's shape.