Big Eye Tuna

	Scientific Name	Thunnus obesus
	Other Names
	World Record

Description

Typical tunny shape, and a deep set fish.
Colour: lower sides and belly whitish with a lateral iridescent band along the side. First dorsal fin deep yellow, second and anal fins light yellow. Finlets bright yellow and edged with black. Pectoral fin exceeds the edge of the second dorsal.

Habitat

An offshore species, with a sea temperature requirement of between 18/200C. They are governed by the thermocline and therefore tend to be a deeper swimming fish, although known to come into the surface layers during hours of darkness.

Feeding Habits

The food spectrum of bigeye tuna covers a variety of fish species, cephalopods and crustaceans, thus not diverging significantly from that of other similar-sized tunas. Feeding occurs in daytime as well as at night. The main predators are large billfish and toothed whales.

Age and Growth

Bigeye tuna can reach a maximum size of 2.36 metres and 210kg in weight, however it is rare for these tuna to exceed 1.80 metres in length and 150kg

Tackle and Methods

Fishing methods for Big Eye Tuna include trolling whole baits such as mullet, mackerel, bonefish, ballyhoo, flying fish, and squid, as well as various types of artificial lures and sometimes strip baits

Related Species

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	Atlantic Bonito		Tuna Longtail
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	Tuna Blue Fin		Tuna Yellow Fin
	Tuna / Tunny Little

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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