atlantic bluefin tuna

Scientific name Thunnus thynnus
Descriptor Linnaeus
Year of description 1758
IUCN category LC
Family Scombridae
Genus Thunnus
Thunnus thynnus Thunnus thynnus


Thunnus thynnus, commonly known as atlantic bluefin tuna, is a salt water fish.

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Who is it?


  • Average size
    115 cm
  • Maximum size
    400 cm
  • Average size
    115 cm
  • Maximum size
    400 cm

How to recognize the atlantic bluefin tuna ?

The atlantic bluefin tuna measures between 115 and 400 cm. This fish is bicolore with a predominantly bleu and gris body.

Behaviour & Life cycle

  • diet
  • Sociability
    living in shoals
  • territorial
  • Way of living

The atlantic bluefin tuna hunts in the stalk and is one of the predators of its biotope. Opportunistic, it does not hesitate to attack any smaller animal nearby.

The atlantic bluefin tuna is a fish living in shoals naturally found mid-depth and near surface. This species is carnivorous .

Although the atlantic bluefin tuna is non-territorial, it is sometimes aggressive towards other species.


  • Reproduction
    ovipare qui pond en eau libre

The atlantic bluefin tuna is a fish ovipare qui pond en eau libre.

Harmless species

This species does not represent any particular threats to humans when encountered in its natural environment.

Where to find it?

What is its habitat?

Natural environment characteristics

  • Temperature
    3 - 24 °C
  • Depth
    0 - 1000 m
  • Environment
    Active pelagic
  • Flow

Biotope presentation

The atlantic bluefin tuna is most often found at a depth between 0m and 1000m. However, it is not impossible to find this species at other depths.

To go further

Species of the same family

To read on the web

Sources & Contributions

Participation & Validation

The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.

Bill François

Bill François

Benoit Chartrer

Benoit Chartrer

Julie Magnus

Julie Magnus

Silvia Gomez

Silvia Gomez

Adrien Falzon

Adrien Falzon


Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.

Bibliographic references

Life History and Stock Structure of Atlantic Bluefin Tuna (Thunnus thynnus) - Jay R. Rooker - Jaime R. Alvarado Bremer - Barbara A. Block - Heidi Dewar - Gregorio de Metrio - Aldo Corriero - - 2007.

Annual migrations, diving behavior, and thermal biology of Atlantic bluefin tuna, Thunnus thynnus, on their Gulf of Mexico breeding grounds - Steven L. H. Teo - Andre Boustany - Heidi Dewar - Michael J. W. Stokesbury - Kevin C. Weng - Shana Beemer - Andrew C. Seitz - Charles J. Farwell - Eric D. Prince - Barbara A. Block - Springer Nature - 2007.

Complex migration routes of Atlantic bluefin tuna (Thunnus thynnus) question current population structure paradigm - Benjamin Galuardi - François Royer - Walt Golet - John Logan - John Neilson - Molly Lutcavage - Canadian Science Publishing - 2000.

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