One of the 2 tunas on WAnimals
Bony fish · Scombriformes · Scombridae
Thunnus thynnus
At very high risk of extinction in the wild in the near future.
It can hold its core muscle several degrees warmer than the surrounding water through a counter-current heat exchange system, an adaptation unusual among fish.
Weight
up to 900 kg
Size
3 m – 4.6 m
Life expectancy
15 years
Diet
Carnivore
Feeds mainly on other animals.
Activity
Diurnal
Active mainly during the day.
Social structure
School
Gathers in coordinated schools, typical of fish.
Sighting difficulty
Hard
AI-generated images: illustrations, not photographs.
Sources consulted: American Oceans; FishBase; PMC (spawning duration study, reproductive performance study); ICES Factsheet; NOAA Fisheries; Tom's Catch Blog; Animal Diversity Web
Parks and dive sites where this species has been documented — showing 20 of 133.
Other species in the catalogue with the most in common with Atlantic Bluefin Tuna — same habitat, park, country, tags or family.
The atlantic bluefin tuna is classified as endangered. Organisations such as the IUCN, WWF and the Wildlife Conservation Society work specifically on its conservation and that of its habitat; looking into their programmes is a good starting point if you want to get involved.
It's documented in 17 protected areas — one reason why protecting these places matters for its conservation.
Based on what we already know about atlantic bluefin tuna.
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The pins mark the parks and dive sites where its presence is documented.
