sea trout; salmon trout
Refers to a sea-run trout, often specifically the anadromous form of the brown trout (Salmo trutta) or similar species. In Japanese contexts, it may be used for sea-run forms of native salmonids.
Sea trout migrate from the sea up rivers to spawn.
Katakana spelling is common for this fish name; usually written in kana.
Kanji form is rare and may not be widely recognized; the word is usually written in kana.
Compound of 海 (うみ, 'sea') and 鱒 (ます, 'trout'), literally 'sea trout'. The katakana spelling reflects the usual kana usage for this term.