🌍 Capelin (Mallotus villosus); North Atlantic and Arctic oceans; major sources: Canada (Newfoundland), Norway, Iceland, Russia
🕰️ Industrial: Capelin roe (masago) processed at industrial scale since 1970s in Scandinavia; Canadian production grew from 1990s; originally a bait fishery (for cod) that discovered a delicacy use; Japanese market opened in 1980s