Thunnus tonggol   (Bleeker,  1851) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Mya Than Tun

Size: 80-145 cm.

Max. weight reported: 35.9 kg

Color: Lower sides and belly silvery white with colorless elongate oval spots arranged in horizontally oriented rows. The dorsal, pectoral and pelvic fins are blackish. The tip of the second dorsal and anal fins are washed with yellow. The anal fin is silvery, the dorsal and anal finlets are yellow with grayish margins. The caudal fin is blackish, with streaks of yellow green.

A small species, deepest near the middle of the first dorsal fin base. The second dorsal fin is higher than the first dorsal fin. The pectoral fins are short to moderately long, swim bladder is absent or rudimentary. Vertebrae: 39. Height about 4.3. Head about 4. Eye 5.6, 1.6 in snout. Mouth oblique. Maxillary reaching to below middle of eye. Rather large conical teeth in a single series in the jaws. Patches of small teeth on vomer and palatines. Corselet with two posterior emarginations, the upper one surpassing point of pectoral, the lower one reaching to anus. First dorsal spine equal to snout and eye, following spines gradually decreasing in length to the sixth, the posterior spines only slightly diminishing in size, the upper edge of the fin concave in its anterior half, almost straight posteriorly. Second dorsal and anal falcate, their greatest depth about twice that of the body. The first dorsal and anal fin lets are often adnate to the second dorsal and anal, in which case there are only 8 free fin lets. Pectorals half length of snout shorter than head. Ventrals somewhat shorter than snout and eye. Origin of pectorals below that of first dorsal. Origin of ventrals slightly behind that of pectorals.

Remarks: Values in above description denote proportions.

Synonym (s)
Neothunnus rarus Kishinouye, 1923
Kishinoella rara Jordan and Hubbs, 1925
Neothunnus tonggol Jordan and Evermann, 1926
Thunnus maccoyi Mc Culloch, 1929
Neothunnus rarus Deraniyagala, 1933
Thunnus rarus Delsman and Hardenberg, 1934
Thunnus nicolsoni Whitley, 1936
Thunnus tonggol Tortonese, 1939
Kishinoella tonggol Serventy, 1942
Thunnus (Kishinoella) tonggol Fraser-Brunner, 1950
Kishinoella tonggol (Bleeker, 1851)
Kishinoella rara (Kishinouye, 1915)
Neothunnus rarus (Kishinouye, 1915)
Neothunnus tonggol (Bleeker, 1851)
Thunnus rarus Kishinouye, 1915
Thynnus tonggol Bleeker, 1851

Common Name (s)
• Blue Fin Tuna (English)
• Long Tail Tuna (English)
• Kerachoora (Malayalam)
• Kethal (Malayalam)
• Gethal (Kannada)
• Gethar (Kannada)
• Khavalya Gedar (Marathi)
Economic Importance and Threats
Importance:  Commercial
(Fisheries, gamefish. Marketed fresh or frozen, dried and salted)

Habitat:  Pelagic
Trophic Level:  Tertiary Consumer
Prey:  Zooplankton, finfish, crustaceans and cephalopods
Predator:  Carcharhinus tilstoni


• Tamil Nadu, Tuticorin INDIA (Record: 1989-2002)
• Maharashtra, Ratnagiri INDIA
• Tamil Nadu, Kanniyakumari INDIA
• Tamil Nadu, Gulf of Mannar INDIA
• Andaman Sea
• Kerala INDIA
• Tamil Nadu, Tuticorin INDIA

Literature Source(s)
  • Hussain, SM Brief report on biodiversity in the coastal areas of Pakistan p 113
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at -
  • Tun, MT (2001) Marine fishes of Myanmar (pelagic and demersal) U Than Tun, Director-General, Department of Fisheries, Ministry of Livestock and Fisheries, Myanmar 276 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at -
  • Al-Abdessalaam, TZS (1995) Marine species of the Sultanate of Oman p 412 Available at - NIO, Goa
  • 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
  • Beaufort, LF and Chapman, WM (1951) The fishes of the Indo-Australian Archipelago A. J. Reprints agency, Karol Bagh, New Delhi 9 484 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 -
  • 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
  • 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 Clupeidae Daya publishing house Available at - NIO,Goa
  • 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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