noun
middle-sized Japanese amberjack
Refers to a young yellowtail (Seriola quinqueradiata) of intermediate size, typically around 40–60 cm. In the Kantō region, this name is used for fish at this growth stage, distinct from smaller 'hamachi' and larger 'buri'. Primarily a culinary and fishing term.
See also: 鰤
この時期のワラサは脂がのっていて美味しい。
Warasa at this time of year are fatty and delicious.
釣り船でワラサを狙う。
I target warasa on a fishing boat.
The name is regional (Kantō) and refers to a specific growth stage of the yellowtail. The exact origin of the word is uncertain.