Thunnus alalunga (Bonnaterre, 1788)

Fermon, Yves, Bailly, Nicolas, Cardiec, Floriane, Causse, Romain, Chartrain, Emmanuel, Chirio, Laurent, Bruyne, Godefroy De, Deynat, Pascal, Hopkins, Carl D., Lamboj, Anton, Mennesson, Marion I., Beh, Jean-Hervé Mve, Paugy, Didier, Sidlauskas, Brian, Sullivan, John P., Weghe, Jean-Pierre Van De, Vigliotta, Thomas R. & Zee, Jouke Van Der, 2022, An annotated checklist of the fishes of Gabon, Cybium 46 (2), pp. 2-3 : 214

Thunnus alalunga (Bonnaterre, 1788)

Thunnus obesus (non Lowe, 1839) [Misapplied�

Occurrence: native

Maximum length: 155.4 cm TL; 140 FL

Water type: marine

Environment: pelagic-oceanic

Depth range: 0-600 m

Migration: oceanodromous

IUCN status: LC – Least concern (2021)

Source: bibliography, observation

Distribution and remarks: cosmopolitan in tropical and temperate waters of all oceans including the Mediterranean Sea but not at the surface between 10°N and 10°S. Atlantic: known between 60°N and 50°S. Often confused with juvenile Thunnus obesus which also have very long pectorals but with rounded tips. Highly migratory species, Annex I of the 1982 UNCLOS.