noun
ocean fish; saltwater fish
Refers to fish that live in the sea, as opposed to freshwater fish. A straightforward compound of 海 (sea) and 魚 (fish).
この市場では新鮮な海魚が手に入る。
You can get fresh ocean fish at this market.
海魚と淡水魚では味が違う。
Ocean fish and freshwater fish taste different.