Found in oceanic waters, sometimes not far from the coast . Forms large mixed schools with the skipjack tuna. Its spawning grounds are located well offshore. Preys on surface and deep-sea fishes, squids, amphipods, shrimps, crabs and stomatopods and decapod larvae. The largest fishery for blackfin tuna operates off the southeastern coast of Cuba and uses live-bait and pole. Utilized fresh, dried or salted, canned and frozen .
Behavioural data for Blackfin tuna is currently being
reviewed.
🦐 Diet
small fish
crustaceans
cephalopods
🥚 Reproduction
Size at Maturity
49.4cm TL
🌍 Habitat & Distribution
Marine; pelagic-oceanic; oceanodromous ; depth range 0 - 50 m. Tropical; 20°C - ? ; 43°N - 28°S, 100°W - 26°W south to Trinidad Island and Rio de Janeiro, Brazil (Ref.
AIAWAntigua and BarbudaBMBahamasBarbadosBelizeBrazilCWColombiaCosta RicaCubaDominicaDominican RepublicGFGPGrenadaGuatemalaGuyanaHaitiHondurasJamaicaKYMQMSMexicoNicaraguaPRPanamaSaint Kitts and NevisSaint LuciaSaint Vincent and the GrenadinesSurinameTCTrinidad and TobagoUnited StatesVGVIVenezuela
🌿 Ecology
Zone Preferences
🌊 Marine🐟 Pelagic
Migration
Oceanodromous
Trophic Level
4.4±0.3
🐠 Schooling
📐 Morphometrics
Length–Weight Relationship:
W = 0.01148 × L3.05
(TL)
Max TL
108cm
Max FL
72cm
Max Weight
20,600g
Dorsal Spines
13
Dorsal Rays
15
Anal Rays
14
Vertebrae
39
🌡️ Water Parameters & Tolerance
Salinity Range
30–40ppt
🛡️ Conservation Assessment
IUCN Category
Least Concern
Assessment Date
2021
📊 Population Risk & Fisheries
Population Resilience
Medium
Minimum doubling time
Fishing Vulnerability
42.00/100
Moderate vulnerability
Trophic Level
4.4
Apex / Top predator
Body Shape
Fusiform / normal
Climate Zone
Tropical
Latitude Range
43°N
–
28°S
Described By
Lesson, 1831
🎣 Angling Guide
Difficulty
Advanced
Fight Rating
blistering runs; among the most powerful fish in the ocean