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Auxis thazard  (Lacepède, 1800)

Frigate tuna
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Auxis thazard
Picture by Randall, J.E.


country information

Common names: [No common name]
Occurrence:
Salinity:
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
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Occurrences: Occurrences Point map
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

Main reference

Size / Weight / Age

Max length : 65.0 cm FL male/unsexed; (Ref. 29114); common length : 60.0 cm TL male/unsexed; (Ref. 47377); max. published weight: 1.7 kg (Ref. 40637); max. reported age: 5 years (Ref. 29114)

Length at first maturity
Lm 30.0, range 29 - ? cm

Environment

Marine; pelagic-neritic; oceanodromous (Ref. 51243); depth range 50 - ? m (Ref. 9340)

Climate / Range

Tropical; 27°C - 28°C, preferred 27°C (Ref. 107945); 61°N - 51°S, 180°W - 180°E

Distribution

Atlantic, Indian and Pacific (Western Central). Eastern Pacific population recognized as subspecies Auxis thazard brachydorax (Ref. 32349). Many authors have used the name Auxis thazard as including Auxis rochei in the belief that there was only a single worldwide species of Auxis. 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): 10 - 12; Dorsal soft rays (total): 10-13; Anal spines: 0; Anal soft rays: 10 - 14. Back bluish, turning to deep purple or almost black on the head. A pattern of 15 or more narrow, oblique to nearly horizontal, dark wavy lines in scaleless area above lateral line. Belly white. Pectoral and pelvic fins purple, their inner sides black. Body robust, elongate and rounded. Teeth small and conical, in a single series. Pectoral fins short, but reaching past vertical line from anterior margin of scaleless area above corselet. A large single-pointed flap (interpelvic process) between pelvic fins. Body naked except for the corselet, which is well developed and narrow in its posterior part (no more than 5 scales wide under second dorsal-fin origin). A strong central keel on each side of caudal-fin base between 2 smaller keels (Ref 9684).

Biology     Glossary (e.g. epibenthic)

Epipelagic in neritic and oceanic waters (Ref. 9340). Feeds on small fish, squids, planktonic crustaceans (megalops), and stomatopod larvae (Ref. 5213). Because of their abundance, they are considered an important element of the food web, particularly as forage for other species of commercial interest. Preyed upon by larger fishes, including other tunas (Ref. 9987). Marketed fresh and frozen (Ref. 9340); also utilized dried or salted, smoked and canned (Ref. 9987).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: highly commercial; gamefish: yes

More information

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion
Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

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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 | 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 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.4   ±0.4 se; Based on diet studies.

Resilience (Ref. 69278)
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.8; tmax=5; Fec=200,000 to >1 million)

Vulnerability (Ref. 59153)
Low vulnerability (25 of 100)
Price category (Ref. 80766)
Very high