| Scientific name: Auxis thazard |  |
| Nome comum: Chapouto; Judeu liso |
| Common name: Frigate tuna |
| Classification: CHORDATA > ACTINOPTERYGII > Perciformes > Scombridae |
| Description: A medium-sized scombrid. Body robust, elongate and rounded. Two widely separated dorsal fins. Pectoral fins short, but reaching past vertical line from anterior margin of scaleless area above corselet. A large single-pointed process (interpelvic process) between pelvic fins. Body naked except for the specialized scales of the corselet, which is well developed and narrow in its posterior part. A strong central keel on each side of caudal fin base between two smaller keels. Caudal fin deeply forked. Bluish on the dorsal side, with a pattern of 15 or more narrow, oblique to nearly horizontal dark wavy lines in the scaleless area above the lateral line; belly white; pectoral and pelvic fins purple on the outside and black on the inner side. |
Global Distribution: Atlantic, Indian and Western Central Pacific.
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| BIOLOGICAL FEATURES |
| Size: Maximum length 65.0 cm (fork length); common length 60.0 cm (total length); maximum published weight 1.7 kg. |
| Age: Maximum reported age 5 years. |
| Weight length rel.: Bayesian estimated length-weight: a=0.00891 (0.00721 - 0.01102), b=3.10 (3.04 - 3.16). |
| Growth type: |
| von Bertallanfy growth parameters: |
| Reproduction: |
| Maturity: 30.0 cm |
| Behavioural ecology: |
| Population structure & migrations: Highly migratory species. |
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| ECOLOGICAL FEATURES |
| Depth range: FishBase: 50 - ? m |
| Habitat: Pelagic in neritic and oceanic waters. |
| Feeding habits: Feeds on small fish, squids, planktonic crustaceans, and stomatopod larvae. |
| Trophic level: FishBase: 4.3 |
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| FISHERIES |
| Commercial interest: Commercial species; also gamefish. |
| Conservation status: Least concern. |
| Nutritional information & food safety: |
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| REFERENCES |
Carpenter K.E., ed. (2002). The living marine resources of the Western Central Atlantic. Volume 3: Bony fishes part 2 (Opistognathidae to Molidae), sea turtles and marine mammals. FAO Species Identification Guide for Fishery Purposes and American Society of Ichthyologists and Herpetologists Special Publication No. 5. FAO, Rome, pp. 1375-2127.
Collette B.B., Nauen C.E. (1983). FAO Species Catalogue Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. FAO Fisheries Synopses, 125 vol.2, 137 pp.
Direcção Regional de Pescas, Madeira.
Froese, R., Pauly D., editors (2011) .FishBase. World Wide Web electronic publication. www.fishbase.org, (07/2014). www.fishbase.org/summary/Auxis-thazard.html
IUCN (2014). The IUCN Red List of Threatened Species. Version 2014.1. www.iucnredlist.org |
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