HomeFish encyclopediaRay-finned fishesPerch-like fishMackerels, tunas, bonitosYellowfin tuna Yellowfin tuna (Thunnus albacares) Scientific name: Thunnus albacares Bonnaterre, 1788 The Yellowfin tuna (Thunnus albacares) is a brackish-water fish of the family Scombridae. In the aquarium it needs water at 15–31°C (59–88°F). Yellowfin tuna care at a glanceTemperature15–31°C (59–88°F) BiologyAn oceanic species occurring above and below the thermoclines. Pelagic in open water, but rarely seen near reefs. They school primarily by size, either in monospecific or multi-species groups. Larger fish frequently school with porpoises, also associated with floating debris and other objects. Feed on fishes, crustaceans and squids. It is sensitive to low concentrations of oxygen and therefore is not usually caught below 250 m in the tropics. Peak spawning occurs during the summer, in batches. Eggs and larvae are pelagic. Encircling nets are employed to catch schools near the surface. Marketed mainly frozen and canned, but also fresh and smoked. Highly valued for sashimi.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameThunnus albacaresFamilyScombridae (Mackerels, tunas, bonitos)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length239Common length150Depth range1–250 m (3–820 ft)EnvironmentMarine; brackish; pelagic-oceanic; oceanodromous; depth range 1 - 250 m, usually 1 - 100 mClimateTropicalDistributionWorldwide in tropical and subtropical seas, but absent from the Mediterranean Sea. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea.Conservation status (IUCN)Lower Risk: least concern (LR/lc)Threat to humansHarmlessUsesFisheries: highly commercial; gamefish: yesResilienceMedium, minimum population doubling time 1.4 - 4.4 years (K=0.13-0.42; tm=2-5; tmax=8; Fec=200,000) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026