タイセイヨウサケ

Meanings

1

Atlantic salmon

usually written using kana alone

Refers specifically to the species Salmo salar, as distinct from other salmon species.

鮭さけ
Generic term for salmon, especially chum salmon (Oncorhynchus keta). タイセイヨウサケ is a specific Atlantic species.
サーモン
Loanword often used for salmon as food, especially in Western dishes. タイセイヨウサケ is the biological species name.

Compound of 大西洋 (たいせいよう, 'Atlantic Ocean') and 鮭 (さけ, 'salmon').