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Species: Thunnus alalunga, Albacore tuna

All Families:   All Genera:   All Species:

body deepest ~ origin D2
C: rear edge white
gill rakers 25-31
pectoral passes D2 base, tip straight

Thunnus alalunga (Bonnaterre, 1788)

Albacore tuna

Body elongate, fusiform, moderately compressed; greatest body depth at about origin of 2nd dorsal fin; no fatty eyelid; teeth slender, conical; top of tongue with 2 cartilaginous ridges; 25-31 gill rakers; 2 dorsal fins, barely separated; 1st dorsal XII-XVI; 8-9 finlets after dorsal and anal fins; pectoral fin very long (reaches well past 2nd dorsal base) and with straight point; short, forked bony process between pelvic fins; 1 large + 2 small keels on tail base; tail fin deeply forked; indistinct scaly corselet on front of body; small scales cover body behind corselet; lateral line complete, front covered by corselet.

Faint iridescent blue stripe along flank; first dorsal deep yellow; second dorsal and anal light yellow; anal finlets dark grey; tail grey, with white rear border.

Size: 152 cm.

Habitat: oceanic.

Depth: 0-600 m.

Circumglobal, temperate; New England to Brazil.


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Salinity
  • Marine
  • Marine Only
Inshore/Offshore
  • Offshore Only
  • Offshore
Water Column Position
  • Water column only
  • Mid Water
  • Near Surface
  • Surface
Habitat
  • Water column
  • Flotsam
FishBase Habitat
  • Pelagic
Feeding Group
  • Data
  • Carnivore
Diet
  • Bony fishes
  • Pelagic crustacea
  • Octopus/squid/cuttlefish
Egg Type
  • Pelagic
  • Pelagic larva
  • Data
Global Endemism
  • Greater Caribbean non-endemic
  • Circumtropical ( Indian + Pacific + Atlantic Oceans)
Regional Endemism
  • Also in Brazil
  • Island (s)
  • Continent + Island (s)
  • Extends N + S of GC
  • GC non-endemic
  • Extends North of GC
  • Continent
  • Extends South of GC
Residency
  • Resident
Climate Zone
  • Tropical (10-23N, Nicaragua / Cuba)
  • Equatorial (0-10N, Costa Rica / Venezuela)
  • Temperate (>35N)
  • Subtropical (23-35N, Florida / Carolinas / Bermuda)
IUCN Red List
  • Near threatened
  • Listed
CITES
  • Not listed
Length Max
  • 152
Depth Range Min
  • 0
Depth Range Max
  • 600