Auxis rochei   (Risso,  1810) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: John Rangall

Size: 220-275 mm

Color: Bluish dark above, silvery white below. Wavy bands in naked area above lateral line. A dark patch at the postero-ventral border of eye. Spinous dorsal pale with darker edges; second dorsal and dorsal finlets slightly brownish; anal fin and finlets pale; pectoral pale, upper rays darker; ventral pale, whitish distally.

Head 3.7-4.0 in standard length, 4.1-4.5 in total length. Depth of body 4.6-4.9 in standard length, 5.1-5.5 in total length. Eye diameter 5-6 in head, 1.3-1.4 in snout and also in interorbital space. Maxillary reaching to below anterior 2/5 of eye. Minute teeth in jaws. Vomer and palatines edentulous. First dorsal spine equal to or longer than snout and eye diameter. Spinous dorsal and soft dorsal separated by interspace about one eye diameter shorter than head. Height of second dorsal and anal about equal to eye diameter. Pectoral fin as long as half length of head. Ventral fin slightly shorter than snout and eye diameter. Body naked except for corselet running from base of second dorsal to above end of pectoral and gradually tapering towards tail with a rounded curve forming a comparatively wide band of 8 to 11 rows of scales at vertical through second dorsal and then forwards to above base of ventral fin, curving back and ending behind tip of ventral fins.

Number of spines in the first dorsal fin: X-XI; number of spines and rays in the second dorsal fin: 13+8; number of spines and rays in the anal fin: 13+7; number of rays in the pectoral fin: 24-25; number of spines and rays in the ventral fin: I, 5; gill raker count: 9-11+33-36.

Remarks: Values in above description denote proportions.

Synonym (s)
Scomber rochei Risso, 1810
Auxis tapeinosoma Jones, 1958
Auxis thynnoides Bleeker, 1855
Auxis maru Kishinouye, 1915
Auxis bisus (Rafinesque, 1810)
Auxis ramsayi Castelnau, 1879
Scomber bisus Rafinesque, 1810
Auxis vulgaris Cuvier, 1832
Thunnus rocheanus (Risso, 1827)
Thynnus rocheanus Risso, 1827

Common Name (s)
• Bullet Tuna (English)
• Frigate Mackerel (English)
• Ragondi
• Eli Choorai (Tamil)
• Kutteli Choorai (Tamil)
• Urulan Choorai (Malayalam)
• Elichoorai
Economic Importance and Threats
Importance:  Commercial
(Fisheries; marketed fresh and frozen.)

Habitat:  Pelagic, Coastal
Trophic Level:  Consumer
Prey:  Small fishes, especially clupeoids, also on squids and crustaceans, especially crab and stomatopod larvae


• Andhra Pradesh, Vishakhapatnam INDIA (Record: 2004-2006) (Depth: -100 mts)
• Tamil Nadu, Tuticorin INDIA (Record: 1989-2002)
• Lakshadweep, Minicoy INDIA
• Kerala, Vizhinjam INDIA
• Karnataka, Mangalore INDIA
• Kerala, Kozhikode INDIA
• Kerala, Kochi INDIA
• Kerala, Trivandrum INDIA
• Tamil Nadu, Kanniyakumari INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Arabian Sea INDIA (Record: 02/1985-06/1987) (Depth: 74-102 mts)
• Andaman Sea (Lat: 13.51) (Long: 73.63) INDIA (Record: 02/1985-06/1987) (Depth: 74-102 mts)
• Andaman Sea (Lat: 9) (Long: 92) INDIA (Record: 02/1985-06/1987) (Depth: 74-102 mts)
• Pondicherry INDIA
• Kerala INDIA
• Andaman and Nicobar Islands, Andaman Islands, Panighat INDIA
• Karnataka, Karwar Coast INDIA

Literature Source(s)
  • Rohit, P; Rao, GS and Rammohan, K (2008) Yellowfin tuna fishery by traditional fishermen at Visakhapatnam, Andhra Pradesh Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 50(1) 62-68 Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Discover life Available at -
  • Abdussamad, EM; Pillai, PP; Kasim, HM and Balasubramanian, TS (2005) Fishery and population characteristics of coastal tunas at Tuticorin Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin, India 47(1) 50-56 Available at - NIO, Goa
  • Jones, S and Kumaran, M (1980) Fishes of the Laccadive Archipelago The Nature Conservation and Aquatic Sciences Service, Trivandrum, Kerala 760 pp Available at - NIO, Goa
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 pp Available at - NIO, Goa
  • Fischer, W and Bianchi, G (Eds.) (1984) FAO species identification sheets for fishery purposes. Western Indian Ocean (Fishing Area 51) FAO, Rome 4 Available at -
  • Fischer, W and Whitehead, PJP (1974) FAO species identification sheets for fishery purposes. Eastern Indian Ocean - Fishing Area 57 and Western Central Pacific - Fishing Area 71 FAO, Rome 4 Available at -
  • Dr. Kumaraguru, AK (2000) Studies on socioeconomics of Coral Reef resource users in the Gulf of Mannar coast, South India Centre for Marine and Coastal studies School of Energy, Environment and Natural Resources Madurai Kamaraj University, Madurai, India Available at -
  • Balachandran, K and Nizar, MA (1990) A check list of fishes of the Exclusive Economic Zone of India collected during the research cruises of FORV Sagar Sampada Proceedings of the first workshop on scientific results of FORV Sagar Sampada CMFRI, Cochin 305-324 Available at -
  • Ramani, K; Ammini, PL; Srinivasan, J; Najeemudeen, SH; Beena, MR; George, KP; Seynudeen, MB; Subbaraman, G; Anandan, K; Khambadkar, LL; Augustine, SK; Pugazhendi, D; Rudhramurthy, N; Subramani, S; Seetharaman, S; Batcha, HK and Sankaralingam, S (2010) An overview of marine fisheries in India during 2007 Marine Fisheries Information Service CMFRI, Kochi 203 1-14 Available at - NIO, Goa
  • Rao, DV; Devi, K and Rajan, PT (1993) Further new records of fishes from Bay Islands Journal of the Andaman Science Association Andaman Science Association, Port Blair 9(1&2) 50-57 Available at - NIO, Goa
  • Pillai, PKM and Augustine, SK (2000) A code list of common marine living resources of the Indian seas CMFRI Special Publication No.12 CMFRI 1-115 Available at -
  • Biswas, KP (2009) Fishes around Indian Ocean Dominant Fish Groups Occurring in Indian Coasts Daya publishing house Available at - NIO,Goa

Page last updated on:2012-01-04

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