Tuna (Blackfin)


The Blackfin ⁤Tuna, scientifically known as Thunnus Atlanticus, is a member ⁤of the mackerel family, Scombridae.

Conservation Status

Despite being a popular⁢ recreational target and occasionally harvested commercially, the Blackfin Tuna is not currently listed as a threatened or endangered species. It is rated as “Least Concern” by the International Union for Conservation of Nature (IUCN). Efforts ‌to maintain its population ⁤include size and catch limits in some regions‍ and ongoing monitoring by various international marine‌ institutes.


Length (Average) Length (Range) Weight (Average) Weight (Range) Average Lifespan
70 cm 50-100 cm 8 kg 5-23 kg 5-7 years


Blackfin Tuna⁢ is commonly found in ‌the western Atlantic from Cape Cod to Brazil. It has also been recorded in the ‍Gulf of Mexico and the Caribbean Sea. The species generally migrates towards⁤ warmer waters⁤ during the colder months of ‍the year.


This species prefers warmer tropical waters, often found in depths of 30-50‍ meters. They can tolerate a wide ‍range of temperatures, but tend to congregate in areas ⁤with temperatures between 20-30°C.

When and Where to ‍See

Blackfin Tuna are most‌ active during the warmer ​months. They​ can be found throughout​ the‌ day, but ⁣are most active during dusk and dawn.

Best Fishing Locations

The top fishing locations for ⁣Blackfin Tuna include:

  1. Florida Keys, United States
  2. Bimini, Bahamas
  3. Gulf⁣ of Mexico, United States
  4. São Paulo, Brazil
  5. North Carolina, United States

How to Catch

Blackfin Tuna‌ prefer live bait, with small fish such as pilchards and herring being particularly effective. Popular fishing techniques include trolling‍ and​ chumming. The best​ time to fish is late afternoon or ⁤early ‌evening.

Identification Guide

Blackfin Tuna have a ​deep, football-shaped⁢ body that is dark blue on top, and transitions to a silver-white near the belly. ⁣One of their ⁢distinguishing features is the black tips on the edge of their dorsal and anal fins. They can be differentiated​ from other tunas by their ⁢more streamlined body and smaller size.

Culinary Profile

Blackfin Tuna has a rich, hearty flavor and dense, firm texture. It’s often used in sashimi ⁤or served as steaks. ⁣It’s high in protein, ⁣low in fat, and an​ excellent source of essential omega-3 fatty⁢ acids.

Additional Information

Blackfin Tuna⁣ feed on a variety of ​prey, including smaller fish, squid, and shrimp. Threats to their population​ include commercial and recreational fishing, as well as predation by larger marine species such as sharks. They are‍ not known for their historical or cultural significance.

References ⁤and Further Reading

For‌ more in-depth information​ about Blackfin Tuna, you can refer ​to:

  • FishBase
  • National Oceanic and Atmospheric Administration
  • FishWatch by National Oceanic and Atmospheric Administration