noun
blue mackerel; Scomber australasicus
A species of mackerel found in the Pacific. Often distinguished from 胡麻鯖 (ごまさば, spotted mackerel). Usually written in kana.
See also: 胡麻鯖
まるさばは日本近海で獲れる。
Blue mackerel are caught in the waters near Japan.
スーパーでまるさばを買った。
I bought blue mackerel at the supermarket.
Spotted mackerel (Scomber australasicus), a related species often contrasted with 丸鯖.
The name 丸鯖 (まるさば) literally means 'round mackerel', likely referring to the body shape compared to other mackerel species. The exact origin is uncertain.