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Species Profile

Albacore Tuna

Thunnus alalunga

The long-fin white tuna of the open sea
lunamarina/Shutterstock.com

Albacore Tuna Ocean Range

Marine Species

Albacore (Thunnus alalunga) is an oceanic, epipelagic–mesopelagic tuna found mainly in temperate to subtropical parts of the Atlantic, Pacific, Indian oceans and the Mediterranean Sea. Adults make long seasonal migrations between temperate feeding areas and warmer subtropical/tropical spawning areas often above 20°C. They use the surface mixed layer down to several hundred meters and follow water temperature and ocean fronts.

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Ocean Regions 8

atlantic_ocean north_atlantic south_atlantic pacific_ocean north_pacific south_pacific indian_ocean mediterranean_sea
Albacore tuna fish, Thunnus alalunga underwater in the cean

At a Glance

Ocean Species
Also Known As Longfin tuna, Longfin tunny, White tuna, Albacora, Bonito del norte
Diet Carnivore
Activity Cathemeral
Lifespan 9 years
Weight 60.3 lbs
Status Near Threatened
Did You Know?

Record size: up to ~140 cm fork length and ~60.3 kg (FAO/FishBase).

Scientific Classification

The albacore is a pelagic, fast-swimming tuna species widely distributed in temperate and subtropical oceans. It is commercially important and is the species most commonly marketed as canned 'white tuna'.

Kingdom
Animalia
Phylum
Chordata
Class
Actinopterygii
Order
Scombriformes
Family
Scombridae
Genus
Thunnus
Species
Thunnus alalunga

Distinguishing Features

  • Very long pectoral fins relative to other tunas (a hallmark trait)
  • Streamlined, metallic dark blue back with silvery sides and pale belly
  • Pelagic schooling behavior and long-distance migrations
  • Typically associated with temperate waters compared with some other Thunnus species

Physical Measurements

Length
3 ft 3 in (1 ft 4 in – 4 ft 7 in)
Weight
44 lbs (4 lbs – 133 lbs)
Top Speed
43 mph
About 70 km/h (estimate)

Appearance

Primary Colors
Blue Silver
Secondary Colors
White Gray Yellow
Skin Type Smooth, mucus-coated skin with very small scales; a distinct thicker-scaled 'corselet' around the pectoral region (typical of Thunnus).
Distinctive Features
  • Streamlined, fusiform tuna body built for sustained high-speed pelagic swimming in temperate to subtropical oceans.
  • Exceptionally long pectoral fins (a key diagnostic trait): in albacore they are markedly elongated and typically extend well past the origin of the second dorsal fin-much longer than in yellowfin, bigeye, or bluefin tunas.
  • Two dorsal fins followed by finlets; and an anal fin followed by finlets. Finlet counts are commonly reported as 7-9 dorsal finlets and 7-9 anal finlets in species descriptions (standard Thunnus alalunga meristics).
  • Strongly lunate (crescent-shaped) caudal fin and narrow caudal peduncle with keels-classic oceanic tuna morphology.
  • Commercially important species commonly marketed as canned 'white tuna' (the primary tuna species sold under that market name in many regions).
  • Maximum size commonly cited: about 140 cm fork length (FL) (e.g., FishBase/FAO species summaries); exceptionally large individuals can reach ~60 kg class (e.g., IGFA all-tackle record weight reported at 60.3 kg).
  • Longevity: maximum reported age commonly cited around ~13 years (FishBase summary values compiled from age-and-growth studies).

Did You Know?

Record size: up to ~140 cm fork length and ~60.3 kg (FAO/FishBase).

Longevity: up to ~13 years reported from ageing studies (otolith-based; FishBase summary).

Name clue: "albacore" entered English via Spanish and Portuguese usage, likely with Arabic roots referring to an "early" or "precocious" fish.

Pectoral fins are exceptionally long for a tuna-often extending past the origin of the second dorsal fin, a key field mark.

Archival tags show wide vertical habitat use: individuals can spend time near the surface yet also dive hundreds of meters (reported to ~600 m in tagging studies).

In U.S. labeling standards, canned "white tuna" is commonly associated with albacore (the typical species marketed as white tuna).

Major regional food identity: in northern Spain, albacore is prized as "northern bonito" and is traditionally caught using hook-and-line methods.

Unique Adaptations

  • Long pectoral fins generate lift and stability, helping efficient cruising in open-water habitats over long distances.
  • Regional endothermy: countercurrent heat exchangers (retia mirabilia) conserve metabolic heat, keeping swimming muscles and key organs warmer than surrounding water-boosting power in cool temperate seas.
  • Streamlined "tuna" body with finlets behind dorsal/anal fins reduces drag and turbulence for sustained high-speed travel.
  • High oxygen-demand design: large gill surface area and strong cardiac output support endurance swimming in pelagic waters.
  • Rigid body with powerful lunate tail (high-aspect caudal fin) optimized for efficient, sustained propulsion rather than short bursts alone.
  • Physiological tolerance for a wide temperature range, enabling use of cool temperate feeding zones while reproducing in warmer waters.

Interesting Behaviors

  • Highly migratory, forming large schools and making basin-scale movements along temperate ocean fronts and productive current boundaries.
  • Size-sorted schooling: groups are often composed of similarly sized fish, which can improve hydrodynamic efficiency and reduce predation risk.
  • Continuous swimming with ram ventilation (water forced over gills while moving), typical of fast pelagic tunas.
  • Diel vertical movement: commonly closer to the surface at night and deeper by day, tracking prey such as squid and small schooling fishes.
  • Spawning occurs in warm waters (generally tropical to subtropical); adults from temperate feeding grounds migrate toward warmer spawning regions seasonally.
  • Opportunistic predation on squid, small fishes, and crustaceans; feeding is often concentrated where currents create prey-rich "edges."

Cultural Significance

Albacore (Thunnus alalunga) is a very important temperate tuna, often sold as canned “white tuna.” It supports fisheries and food traditions in northern Spain and Japan and is managed by international groups (ICCAT, WCPFC, IATTC) because it moves long distances.

Myths & Legends

Polynesian canoe-fishing stories often say culture heroes like Maui pull great fish from the deep; tunas are often among the ocean's strong, fast "gift-fish," even when not named to species.

Hawaiian fishing stories about Kuula and Aiai say pelagic fish like Albacore (Albacore Tuna) (Thunnus alalunga) can be guided, guarded, or revealed by proper ritual knowledge and skilled seamanship.

Basque and Cantabrian coastal communities preserve maritime folk memory around the annual arrival of albacore-celebrated in seasonal festivals and port stories as a near-miraculous "return" that historically signaled livelihood, trade, and communal feasts.

The name 'albacore' is a naming tale from Mediterranean and Atlantic sailors: it passed through Spanish and Portuguese and links to an Arabic word meaning 'early' fish, showing its seasonal arrival prized by fisheries.

In the 20th century, canned “white tuna” became part of food culture in many countries. ‘White’ came to mean albacore’s lighter cooked flesh and was more valued than dark tunas.

Conservation Status

NT Near Threatened

Likely to qualify for a threatened category in the near future.

Population Decreasing

Life Cycle

Birth 1300000 frys
Lifespan 9 years

Lifespan

In the Wild
1–13 years
In Captivity
1–24 years

Reproduction

Mating System Promiscuity
Social Structure Aggregation Group
Breeding Pattern Transient
Fertilization Broadcast Spawning
Birth Type Broadcast_spawning

Albacore (Thunnus alalunga) are pelagic, broadcast spawners: many males and females release eggs and sperm into warm offshore waters. Fertilization is external, with no pair bonds or parental care. Females may spawn several times; eggs are small and planktonic.

Behavior & Ecology

Social School Group: 200
Activity Cathemeral
Diet Carnivore Pelagic squids (particularly ommastrephid squids, e.g., Todarodes spp.)
Seasonal Migratory 6,214 mi

Temperament

Highly migratory, pelagic, fast-swimming predator; generally non-territorial and tolerant of close conspecific spacing in schools (schooling reduces predation risk and increases foraging efficiency).
Behavior changes with age: juvenile and subadult albacore form tighter, surface schools; larger adults are more spread out and make loose groups, except when feeding on dense prey or spawning in warm waters across oceans.
Strong schooling/avoidance responses to disturbance: rapid acceleration, synchronized turns, and depth changes are typical when predators or fishing gear are encountered (consistent with scombrid schooling dynamics described in fisheries observations and general tuna behavioral literature).

Communication

No confirmed species-specific vocalizations documented for Thunnus alalunga in the primary fisheries biology literature; communication is presumed to be predominantly non-acoustic, as in most tunas.
Hydrodynamic and mechanosensory cueing via the lateral line to maintain spacing and alignment within schools Core mechanism for synchronized schooling in fishes
Visual signaling and cue-following (body orientation, tailbeat frequency, polarization) used for alignment and coordinated direction changes-most effective in well-lit surface waters, contributing to tighter daytime schooling in many pelagic fishes.
Chemical cues likely important at close range (e.g., recognition/aggregation cues), though species-specific pheromonal signaling has not been precisely characterized for albacore in widely cited ICCAT/FAO summaries.
Context-dependent grouping around prey fronts/thermocline structure: individuals converge on shared environmental cues Temperature gradients, prey layers) rather than fixed social bonds (ICCAT/FAO synthesis perspective

Habitat

Open Ocean Coastal Deep Sea
Biomes:
Marine
Elevation: Up to 1968 ft 6 in

Ecological Role

Pelagic mid-to-upper trophic predator that links micronekton/forage-fish and squid production to higher trophic levels (including larger tunas, billfishes, sharks, marine mammals, and fisheries).

Regulates abundances of forage fishes and pelagic squids via predation Transfers energy from lower trophic levels (micronekton/crustaceans) to apex predators and human fisheries (trophic coupling) Contributes to pelagic food-web stability by preying on seasonally abundant schooling organisms

Diet Details

Main Prey:
Small pelagic fishes Mesopelagic fishes Cephalopods Pelagic crustaceans

Human Interaction

Domestication Status

Wild

Thunnus alalunga (albacore) is a wild, highly migratory pelagic tuna with no history of domestication. It is caught in the open ocean and managed by regional fisheries management organizations (RFMOs). Max size about 140 cm FL, max weight 60.3 kg, lifespan ~13 years. It schools, migrates long distances, must swim continuously and has warm muscles, making captivity difficult.

Danger Level

Low
  • Physical injury risk is low in normal encounters; most injuries occur during capture/handling (hooks, line burns, punctures from gear, thrashing).
  • Foodborne risks: (1) histamine (scombroid) poisoning if temperature control fails after capture; (2) methylmercury exposure from frequent consumption of large predatory fish (public-health advisories commonly include albacore tuna).
  • Boating/gear hazards in commercial and recreational fisheries (entanglement, winches, heavy lines) rather than direct aggression by the fish.

As a Pet

Not Suitable as Pet

Legality: Albacore tuna is not usually listed as a pet, but keeping one needs collection and transport permits and approval for big facilities (like public aquariums). Many places make it practically impossible.

Care Level: Expert Only

Purchase Cost: Up to $200
Lifetime Cost: $250,000 - $5,000,000

Economic Value

Uses:
Commercial capture fisheries (major value; global seafood commodity) Seafood processing and retail (notably canned 'white tuna') Recreational fisheries (regional) Employment and coastal port economies (fleet, processing, logistics) Scientific research and fisheries monitoring (tagging, stock assessments) International management and compliance (RFMO quotas, traceability)
Products:
  • Canned 'white tuna' (albacore is the principal species marketed as 'white' in many markets)
  • Fresh and frozen loins/steaks
  • Raw tuna fillet or loin products intended for raw consumption (market-dependent)
  • Byproducts: fishmeal/fish oil (from trimmings)
  • Bait and secondary products from processing wastes

Relationships

Predators 9

Shortfin Mako Shark
Shortfin Mako Shark Isurus oxyrinchus
Blue Shark
Blue Shark Prionace glauca
Common Thresher Shark Alopias vulpinus
Bigeye Thresher Shark Alopias superciliosus
Great White Shark
Great White Shark Carcharodon carcharias
Swordfish
Swordfish Xiphias gladius
Blue Marlin Makaira nigricans
Killer Whale
Killer Whale Orcinus orca
Sperm Whale
Sperm Whale Physeter macrocephalus

Related Species 10

Yellowfin tuna
Yellowfin tuna Thunnus albacares Shared Genus
Bigeye Tuna Thunnus obesus Shared Genus
Atlantic Bluefin Tuna
Atlantic Bluefin Tuna Thunnus thynnus Shared Genus
Pacific Bluefin Tuna Thunnus orientalis Shared Genus
Southern Bluefin Tuna Thunnus maccoyii Shared Genus
Longtail Tuna
Longtail Tuna Thunnus tonggol Shared Genus
Skipjack Tuna
Skipjack Tuna Katsuwonus pelamis Shared Family
Atlantic bonito Sarda sarda Shared Family
Wahoo
Wahoo Acanthocybium solandri Shared Family
Narrow-barred Spanish Mackerel Scomberomorus commerson Shared Family

Ecological Equivalents 5

Animals that fill a similar ecological role in their ecosystem

Skipjack Tuna
Skipjack Tuna Katsuwonus pelamis Albacore and skipjack co-occur in pelagic food webs and are taken by purse-seine and longline fisheries. Both are schooling scombrids that eat small surface fishes and squid; albacore prefers cooler waters and makes daily dives to hundreds of meters.
Yellowfin Tuna
Yellowfin Tuna Thunnus albacares Plays a similar role as a large ocean predator and often occupies subtropical waters. Eats small fish and squid and forms schools. Albacore (Thunnus alalunga) prefers temperate to subtropical edges, is smaller (~140 cm, ~60 kg), and lives up to ~12 years.
Bigeye Tuna Thunnus obesus Both species share offshore niches and overlap in longline fisheries, feeding on vertically migrating prey. Bigeye tuna spends more time deeper in the mesopelagic and prefers feeding in cold, deep waters, but albacore also dives to overlap at thermoclines.
Atlantic Bonito Sarda sarda A temperate pelagic predator that often occupies productive shelf-edge and frontal habitats, feeding on schooling fish and squid. Like albacore, it is a high-performance, ram-ventilating scombrid that may form fast-moving schools and track prey aggregations along temperature fronts.
Swordfish
Swordfish Xiphias gladius Uses oceanic fronts and consumes similar prey (squid and midwater fish), especially where deep scattering layers gather. Both species show day–night depth shifts (swordfish are deeper by day; albacore shift depth with light and temperature), creating feeding overlap.

The Albacore Tuna, or longfin tuna, is a large, smooth-skinned pelagic fish that roams the open oceans in massive schools. As one of the main cornerstones of the world’s fishing industries, albacore stocks are carefully managed by governmental agencies to prevent overfishing.

Evolution And History

The albacore comes from a large family of tuna that is generally split into two tribes — the Thunnus and the Sardini. The Thunnus are often considered the “true” tunas, although they most likely have origins from the same evolutionary timeline. The tuna can be traced back to an exothermic ancestor based on early tuna fossils that were discovered from the late Paleocene era in sea deposits.

Classification And Scientific Name

The scientific name of the albacore is Thunnus alalunga. This appears to be the combination of two words: ala, meaning wing, and lunga, meaning long.

Types Of Albacore

Albacore Tuna being hauled aboard Tuna Longlining Vessel in New Zealand

There are 5 species that are called albacore tuna.

©David Vogt/Shutterstock.com

While albacore is part of the species of tuna called Thunnini, which incorporates 15 different types of tuna, there are 5 specific species of tuna that are referred to as albacore, depending on which part of the world you’re in. These 5 are:

  • Blackfin tuna (Thunnus atlanticus)
  • Yellowfin tuna (Thunnus albacares)
  • Yellowtail amberjack (Seriola lalandi)
  • Kawakawa (Euthynnus affinis) – this is a false albacore, which means that they have differences in coloration, body markings, teeth, and where they search for food.
  • Little tunny (Euthynnus alletteratus) – another false albacore.

Appearance

The Albacore is one of the smallest tuna species. Weighing around only 80 pounds, it is just slightly larger than the skipjack. The albacore has a dark blue or gray back, which fades to silver or white around the stomach. The most prominent characteristic is the massive pectoral fin on the side of the body. This is how it acquired the alternate name, longfin.

Albacore Tuna, Thunnus alalunga, between bluefin tuna school

Albacore Tuna, Thunnus alalunga, between bluefin tuna school.

©lunamarina/Shutterstock.com

Distribution, Population, And Habitat

The albacore has distinct stocks in the northern Pacific and southern Pacific. It’s also found in the Atlantic, the Indian Ocean, and the Mediterranean Sea. According to the IUCN Red List, this species is considered “least concern“. Although many populations are responsibly managed, others are in steep decline.

Predators And Prey

The albacore is a top open-sea predator. Its speed and size give it an inherent advantage over many other species.

What Does The Albacore Eat?

The albacore is the only tuna species that feeds primarily on squid and other cephalopods. Crustaceans and fish are secondary sources of food.

What Eats The Albacore?

The albacore is preyed upon by billfish, sharks, rays, and other tuna.

Reproduction And Lifespan

Albacore Tuna fish in a school underwater

Returning to tropical waters each year to reproduce, the female will release eggs into the water.

©Rich Carey/Shutterstock.com

The albacore returns to the tropical waters every year around the summer season to reproduce. Depending on her size, the female will release between 800,000 and 2.6 million eggs into the water. The few albacores that survive into adulthood reach sexual maturity at five or six years and live up to 12 years.

Albacore In Fishing And Cooking

Japanese plate of Assorted Sashimi

Japanese plate of assorted sashimi.

©Nishihama/Shutterstock.com

The albacore is critically important to commercial and recreational fisheries around the world. With its mild taste and firm meat, this species accounts for about 30% of the canned tuna market. Common recipes include grilled albacore, steaks, salads, sushi, and sashimi.

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Sources

  1. WWF / Accessed January 29, 2021
  2. NOAA Fisheries / Accessed January 29, 2021
Melissa Bauernfeind

About the Author

Melissa Bauernfeind

Melissa Bauernfeind was born in NYC and got her degree in Journalism from Boston University. She lived in San Diego for 10 years and is now back in NYC. She loves adventure and traveling the world with her husband but always misses her favorite little man, "P", half Chihuahua/half Jack Russell, all trouble. She got dive-certified so she could dive with the Great White Sharks someday and is hoping to swim with the Orcas as well.
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