Common name: Dogtooth tuna, Dog tuna, Scaleless tuna, Pegtooth tuna, Ruppel’s bonito, Whiteflesh tuna, Tunny, Dogtooth unicolor, Dog teeth, Bonito, Jackass, Greek brown moray, Dog-toothed tuna, Pig-tooth tuna

Japanese name: Isomaguro (磯鮪)

Taiwan common name: 裸鰆、大梳齒 (成功)、長翼、疏齒、大西齒 (臺東)

Chinese common name: 裸狐鲣

Korean common name: 독투스 투나

Scientific name: Gymnosarda unicolor (Rüppell, 1836)

Characteristics:

Dogtooth tuna (Isomaguro) is distributed along the coasts of southern Japan and the Indo-West Pacific region. It is an offshore epipelagic species, migrating alone or in small groups around the reefs and coral reefs around the islands. The body length is 1.5 m. It can reach a maximum of 2 m. It is spindle-shaped. Body shape is spindle-shaped with a long, slender caudal peduncle. Its jaws are lined with sharp teeth.

Its flesh is lean, watery, and somewhat fishy. Although it has the word “tuna” in its name, it is a fish of a different genus from tuna. Where it is caught, it is marinated in soy sauce and made into Nigiri sushi, or fried.

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