Translation of "Mackerel" in Japanese

Today's breakfast was dried mackerel and miso soup.

今日の朝飯は鯵のひらきと味噌汁だった。

Mackerel tastes good whether you simmer it or grill it.

鯖は煮ても焼いても美味しい。

It's hot, so you'd better head back quickly. Mackerel goes off so fast that they coined 'fresh-looking rotten fish'.

早く帰った方がいい、暑いから。サバは、生き腐れとも言われるくらい足が早い。