- Large median keel with 2 smaller keels on either side of caudal peduncle
- 8–13 gill rakers on first gill arch
- 7–9 dorsal finlets and 6–7 anal finlets
- Teeth small and conical
- Tongue without ridges or teeth
- Body entirely covered in minute scales behind a corselet of well-developed scales
Steel-blue above with 5–11 narrow dark stripes on upper sides, silvery below, first dorsal fin dark.
Up to 102 cm TL and up to at least 10.7 kg in weight.1
Found in subtropical waters of the Indo-Pacific.
Inshore pelagic. Found within a temperature range of 13.5–23°C and found at depths from the surface to 30 m.
Feeds on smaller fish, particularly clupeoids and also small crustaceans and squids. Schools with similarly sized tuna. Length at 50% maturity was estimated between at between 42–54 cm FL.2 Relative fecundity varies from 293,793 to 696,512 for fishes between 39 and 52 cm FL. Maximum age is to at least 4 years.3
Caught mainly by pole-and-line, also by purse seines and drift nets.
Bullet & Frigate tuna
- 1.Collette BB, Nauen CE. FAO species catalogue. Volume 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. 1983.
- 2.Silas EG. Aspects of the taxonomy and biology of the oriental bonito Sarda orientalis (Temminck and Schlegel). 1964;
- 3.Sivadas M, Abdussamad EM, Jasmine S, Rohit P, Koya KP, Ghosh S, et al. Assessment of the fishery and stock of striped bonito, Sarda orientalis (Temminck and Schlegel, 1844) along Kerala coast with a general description of its fishery from Indian coast. Indian Journal of Fisheries. 2012;59(2):57–61.