Matsubara's red rockfish; Sebastes matsubarae
Scientific/common name for this deep-sea fish. Often used in taxonomic or formal contexts.
The Matsubara's red rockfish is a type of deep-sea fish.
red rockfish; red scorpionfish
General term for similar red rockfish/scorpionfish, especially in the Kanto region. Used in cooking contexts.
Simmered red rockfish is a local dish of the Kanto region.
Katakana spelling is standard; the word is usually written in kana.
Kanji spelling using 赤 (red), 魚 (fish), 鯛 (sea bream). Rarely used.
Ateji kanji spelling. Very rare.
Mixed kana-kanji spelling. Rare.
The name likely derives from the reddish color (赤, aka) and the shape resembling a sea bream (鯛, tai), but the exact origin is uncertain.