About Bigeye tuna

Bigeye tuna, Thunnus obesus, is a species of true tuna of the genus Thunnus, belonging to the wider mackerel family Scombridae.
In Hawaiian, it is one of two species known as ʻahi; the other is yellowfin tuna.
They are large, deep-bodied, streamlined fish with large heads and eyes. The pectoral fins are very long, reaching back beyond the start of the second dorsal fin in juveniles and the space between the first and second dorsal fin in adults.

Additional info

Salinity Marine
Depth Up to 1500 meters
Length 250 cm
Max Weight 210 cm
Red List Vulnerable
Threat to Human Harmless

Known names

Local names
American Samoa To'uo
Red List Status

Based on weighted declines of total biomass or spawning stock biomass (SSB) across all stocks, there has been an estimated 42% decline globally over the past 15 years (1992–2007), or three generation lengths.

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