Author: (Lowe, 1839)
FBname: Bigeye tuna
Comments: Occur in areas where water temperatures range from 13°-29°C, but the optimum is between 17° and 22°C.  Variation in occurrence is closely related to seasonal and climatic changes in surface temperature and thermocline.  Juveniles and small adults school at the surface in mono-species groups or mixed with other tunas, may be associated with floating objects.  Adults stay in deeper waters (Ref. 5377).  Eggs and larvae are pelagic (Ref. 6390).  Feed on a wide variety of fishes, cephalopods and crustaceans during the day and at night (Ref. 9340).  Meat is highly prized and processed into sashimi in Japan.  Marketed mainly canned or frozen (Ref. 9684), but  also sold  fresh (Ref. 9340).