IUCN threat status:

Not evaluated

Comprehensive Description

Read full entry

Description

  Common names: mackerel (English), tuna (English), melva (Espanol), barrilete (Espanol)
 
Auxis thazard brachydorax Collette & Aadland, 1996


Frigate mackerel,     Frigate tuna


Body elongate, rounded; no fatty eyelid; jaw teeth slender, conical; top of tongue with 2 ridges;  2 dorsal fins widely separated; 1st  dorsal IX-XI spines; ~ 8 finlets behind 2nd  dorsal fin, ~ 7 behind anal fin; a single-pointed long bony process between pelvic fins; pectoral fins short, not reaching a vertical line from anterior margin of scaleless area on back; 1 lateral line; 1 large + 2 small keels on tail base; a well developed corselet of scales on front of body, rear extension of corselet is narrow (1-8 scales wide).


Back dark bluish; a patch of 15 or more narrow, oblique to nearly horizontal dark wavy lines in scaleless area above lateral line, patch begins under 1st  dorsal and over pectoral fin, belly white.

Size: to 61 cm and 4.5 Kg.

Inhabits coastal and oceanic waters, sometimes forming large schools.


Depth: 0-200 m.

Worldwide in tropical and subtropical seas; the subspecies A. thazard brachydorax is restricted to the eastern Pacific: from California to the lower Gulf of California to Chile, and the oceanic islands.   

Trusted

Creative Commons Attribution Non Commercial 3.0 (CC BY-NC 3.0)

© Shorefishes of the tropical eastern Pacific online information system. www.stri.org/sftep

Source: Shorefishes of the Tropical Eastern Pacific Online Information System

Belongs to 0 communities

This taxon hasn't been featured in any communities yet.

Learn more about Communities

Disclaimer

EOL content is automatically assembled from many different content providers. As a result, from time to time you may find pages on EOL that are confusing.

To request an improvement, please leave a comment on the page. Thank you!