Bigeye tuna (or bigeye) are oceanic fish present throughout Australian waters. Geographic distribution is limited by temperature and oxygen concentrations. They have a greater tolerance to lower temperature and oxygen levels than other tunas, therefore, they tend to occupy deeper waters. They are generally found in more southern waters of Australia's east and west coasts, preferring offshore areas.
Habitat
Bigeye tuna are a member of the family Scombridae and are easily distinguished by their noticeably larger eyes, hence the name. They have moderately long pectoral fins and yellow dorsal and anal fins.
