Satellite tagging has shown that bigeye tuna often spend prolonged periods cruising deep below the surface during the daytime, sometimes making dives as deep as 500 metres.
Penandaan satelit telah menunjukkan bahwa bigeye tuna sering menghabiskan waktu lama menjelajah jauh di bawah permukaan selama siang hari, kadang-kadang menyelam sedalam 500 meter.