鮮魚 and 刺身: Fresh fish and sashimi as a dish
Compare 鮮魚 in a market or storage description with 刺身 made or ordered as a dish. Keep freshness-based naming separate from the dish name and ordering separate from eating.
鮮魚 in a market and in storage
「市場の鮮魚売り場で鯛を買った。」 — “I bought sea bream at the fresh fish counter in the market.” 鮮魚売り場 names the fresh-fish section. 鯛を買った reports buying sea bream, without stating how it was later prepared or eaten.
「鮮魚は低い温度で保管されている。」 — “Fresh fish is stored at a low temperature.” 鮮魚 is what is stored, and 低い温度で describes storage in this example. The freshness-based name does not itself mean that the fish is eaten raw.
刺身 made or ordered
「新鮮な魚を薄く切って刺身にした。」 — “We thinly sliced the fresh fish to make sashimi.” 薄く切って刺身にした reports making sashimi by slicing the fish thinly. 刺身 names the dish, rather than every fish described as fresh.
「夕食にまぐろの刺身を少し注文した。」 — “I ordered a small serving of tuna sashimi for dinner.” まぐろの刺身 is the object of 注文した. 少し limits the amount ordered; placing the order is separate from actually eating the dish.
A freshness focus and a dish name
鮮魚 names fish with a freshness focus, whereas 刺身 names sashimi as a dish. Read buying and storing fish separately from making or ordering the named dish.
Freshness alone does not report that every fish has been prepared as sashimi or establish conditions for eating it. These sentences compare naming and actions without prescribing storage temperatures or preparation methods.
Does 「夕食にまぐろの刺身を少し注文した」 say the sashimi was already eaten?
Show the answer and why
No. まぐろの刺身 names the dish ordered, and 注文した reports ordering it. Serving and eating are not stated.