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Thunnus alalunga  (Bonnaterre, 1788)

Albacore
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Thunnus alalunga
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Seychelles country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/se.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Collette, B.B. and C.E. Nauen, 1983
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Тунец длинноперый, Germon, Atún blanco, ... more

Main reference

Collette, B.B. and C.E. Nauen. 1983. (Ref. 168)
 References | Biblio | Coordinator : Collette, Bruce B. | Collaborators

Size / Weight / Age

Max length : 140 cm FL male/unsexed; (Ref. 3669); common length : 100.0 cm FL male/unsexed; (Ref. 9684); max. published weight: 60.3 kg (Ref. 40637); max. reported age: 9 years (Ref. 72462)

Length at first maturity
 Lm 85.0, range 85 - ? cm

Environment

Marine; pelagic-oceanic; oceanodromous (Ref. 51243); depth range 0 - 600 m (Ref. 168)

Climate / Range

Subtropical; 10°C - 25°C (Ref. 168), preferred 27°C (Ref. 107945); 59°N - 46°S, 180°W - 180°E

Distribution

Cosmopolitan in tropical and temperate waters of all oceans including the Mediterranean Sea but not at the surface between 10°N and 10°S. Western Pacific: range extend in a broad band between 40°N and 40°S (Ref. 9684). Often confused with juvenile Thunnus obesus which also have very long pectorals but with rounded tips. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea (Ref. 26139).
 Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 11 - 14; Dorsal soft rays (total): 12-16; Anal spines: 0; Anal soft rays: 11 - 16. Anterior spines much higher than posterior spines giving the fin a strongly concave outline. Interpelvic process small and bifid. Body with very small scales. Pectoral fins remarkably long, about 30% of fork length or longer in 50 cm or longer fish. Ventral surface of liver striated and the central lobe is largest.

Biology     Glossary (e.g. epibenthic)

An epipelagic and mesopelagic, oceanic species, abundant in surface waters of 15.6° to 19.4°C; deeper swimming, large albacore are found in waters of 13.5° to 25.2°C; temperatures as low as 9.5°C may be tolerated for short periods (Ref. 168). Known to concentrate along thermal discontinuities (Ref. 168). Form mixed schools with skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares) and bluefin tuna (T. maccoyii), schools may be associated with floating objects, including sargassum weeds (Ref. 168). Feed on fishes, crustaceans and squids. Eggs and larvae are pelagic (Ref. 6769). Sexual maturity reached at 90 cm (Ref. 36731). Highly appreciated and marketed fresh, smoked, deep frozen or canned. Eaten steamed, broiled, fried and microwaved (Ref. 9987). Also Ref. 1762, 1798, 1804. Angling: Largely caught offshore, where the waters are mild and blue. Albacore favor those areas where cooler water interfaces with warmer water. They are caught with live of dead baitfish such as mullet, sauries, squid, herring, anchovies, sardines, and other small fish. Albacore strike hard and make powerful runs (Ref. 84357).

IUCN Red List Status (Ref. 115185)

  Near Threatened (NT) 

Threat to humans

  Harmless



Human uses

Fisheries: highly commercial; gamefish: yes

Tools

E-book | Field guide | Identification keys | Length-frequency wizard | Life-history tool | Point map | Classification Tree

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

BHL | BOLDSystems | Check for other websites | Check FishWatcher | CISTI | DiscoverLife | ECOTOX | FAO(fisheries: production, species profile; publication : search) | FIRMS (Stock assessments) | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | National databases | PubMed | RFE Identification | Scirus | Sea Around Us | SeaLifeBase | Tree of Life | uBio | uBio RSS | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoological Record | Fishtrace

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
 PD50 = 0.5039 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
 4.3   ±0.2 se; Based on diet studies.

Resilience (Ref. 69278)
 Medium, minimum population doubling time 1.4 - 4.4 years (K=0.13-0.18; tm=4-6; tmax=10; Fec=2 million)

Vulnerability (Ref. 59153)
 High vulnerability (58 of 100)
Price category (Ref. 80766)
 High