National Geographic : 1923 Dec
TUNA (Thunnus thynnus) The Tuna belongs to the Mackerel family, of which it is the largest representative, and has a wider distribution than most fishes. Itisfound inallwarm seas, and occurs as far north as Newfoundland. On the North Atlantic coast it is caught from early summertoOctober. During oneseason asingle fisher man harpooned thirty Tuna of an average weight of 1,000 pounds, although some weighing up to 1,500 pounds have been taken.