Rachycentron canadum   (Linnaeus,  1766) (Fish)
Organism information awaits expert curation
Class: Actinopterygii

Image copyrights: Randall, J.E.

Size: 110-200 cm TL.

Max. weight report: 68.0 kg.

Color: Back and sides dark brown, with 2 sharply defined narrow silvery bands.

Body elongate, subcylindrical; head broad and depressed. Mouth large, terminal, with projecting lower jaw; villiform teeth in jaws and on roof of mouth and tongue. First dorsal fin with 7 to 9 (usually 8) short but strong isolated spines, not connected by a membrane; second dorsal fin long, anterior rays somewhat elevated in adults; pectoral fins pointed, becoming more falcate with age; anal fin similar to dorsal, but shorter; caudal fin lunate in adults, upper lobe longer than lower (caudal fin rounded in young, the central rays much prolonged). Scales small, embedded in thick skin; lateral line slightly wavy anteriorly.

Dioecious, external fertilisation. Spawning shows one clear seasonal peak per year.

Max. age reported: 15 years

Synonym (s)
Elacate pondiceriana Ruppell, 1835
Elacate bivittata Bleeker, 1845
Elacate bivittata Cantor, 1850
Elacate motta Bleeker, 1852
Elacate nigra Gunther, 1860
Elacate nigra Bleeker, 1862
Elacate malabarica Guichenot, 1866
Elacate nigra Playfair and Gunther, 1866
Elacate nigra Klunzinger, 1871
Elacate nigra de Castelnau, 1879
Apolectus niger (Bloch, 1793)
Centronotus gardenii Lacepede, 1801
Centronotus spinosus Mitchill, 1815
Gasterosteus canadus Linnaeus, 1766
Meladerma nigerrima Swainson, 1839
Naucrates niger (Bloch, 1793)
Rachicentron canadum (Linnaeus, 1766)
Rachycentrodon canadum (Linnaeus, 1766)
Rachycentron canadus (Linnaeus, 1766)
Rachycentron typus Kaup, 1826
Rachycentrum canadum (Linnaeus, 1766)
Scomber niger Bloch, 1793
Thynnus canadensis Gronow, 1854

Common Name (s)
• Cobia (English)
Economic Importance and Threats
Importance:  Commercial
(Fisheries, gamefish, marketed fresh or frozen)
Cultured:  Yes

Habitat:  Pelagic, Reef Associated, Estuarine, Rocky
Trophic Level:  Tertiary Consumer
Prey:  Zoobenthos, finfish, bony fish, crabs and squids
Predator:  Coryphaena hippurus


• Kerala INDIA
• Arabian Sea INDIA (Record: 02/1985-06/1987) (Depth: 42-102 mts)
• Bay of Bengal (Lat: 12.66) (Long: 80.48) INDIA (Record: 02/1985-06/1987) (Depth: 42-102 mts)
• Andhra Pradesh INDIA
• Orissa, Puri INDIA (Record: 1987-2006)
• Tamil Nadu, Gulf of Mannar INDIA
• Tamil Nadu, Cuddalore Coast INDIA (Record: 07/2008-08/2008, 12/2008)
• West Bengal (Lat: 21.45) (Long: 87.9) INDIA

Literature Source(s)
  • Wafar, MVM (2003) Checklists of reef fauna Available at - http://www.reefindia.org/
  • UNEP World Conservation Monitoring Centre Available at - http://www.unep-wcmc.org/
  • Zoological Survey of India (Eds) (1991) Animal resources of India (Protozoa to Mammalia) ZSI 1-694 Available at - NCL, Pune
  • Integrated Taxonomic Information System (ITIS) Available at - http://www.itis.gov.
  • Letourneur, Y; Chabanet, P; Durville, P; Taquet, M; Teissier, E; Parmentier, M; Quero, JC and Pothin, K (2004) An updated checklist of the marine fish fauna of Reunion Island, south-western Indian Ocean Cybium 28(3) 199-216
  • DouAbul, AAZ; Heba, HMA and Fareed, KH (1997) Polynuclear aromatic hydrocarbons (PAHs) in fish from the Red Sea coast of Yemen Hydrobiologia 352 251-262 Available at - Zoological Records(yemen-marine)
  • Allen, GR and Mohammed, A (2003) Coral Reef Fishes of Indonesia Zoological Studies 42(1) 26299 Available at - Digital Information Resource Center, Pune.
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • 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 - http://www.marinespecies.org
  • Rama Rao, KV (1995) Pisces Wetland ecosystem series 1: Fauna of Chilika lake ZSI, Calcutta 483-506 Available at - NIO, Goa
  • Weber, M; Beaufort, LF (1931) The fishes of the Indo-Australian Archipelago Print times, Pataudi house, Daryaganj, New Delhi 6 448 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 3 Available at - http://www.fao.org/docrep/009/ad468e/ad468e00.HTM#Contents
  • Bijukumar, A and Deepthi, GR (2009) Mean trophic index of fish fauna associated with trawl bycatch of Kerala, southwest coast of India Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 51(2) 145 - 154 Available at - NIO, Goa
  • 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 - http://eprints.cmfri.org.in/5269/1/43.pdf
  • 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
  • Ammini, PL; Khambadkar, LL and Augustine, SK (2008) A brief report on the marine fisheries of Puri, Orissa Marine Fisheries Information Service Technical and Extension Series CMFRI 195 6-10 Available at - http://eprints.cmfri.org.in/3454/1/3.pdf
  • Varghese, M; Manisseri, MK; Ramamurthy, N; Geetha, PM; Thomas, VJ and Gandhi, A (2011) Coral reef fishes of Gulf of Mannar, S.E of India Fishing Chimes CMFRI 31(1) 38-40 Available at - NIO, Goa
  • Lakshmi, A and Sundaramanickam, A (2011) Biodiversity of reef ichthyofauna in Cuddalore coast, southeast coast of India International Journal of Environmental Sciences Integrated Publishing Association 1(7) 1616-1621 Available at - ipublishing.co.in/jesvol1no12010/EIJES2108.pdf
  • 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 - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf
  • Das, P; De, SP; Bhowmik, RM; Pandit, IK; Sengupta, R; Nandi, AC; Thakurta, SC and Saha, S (2007) Piscine diversity of West Bengal Fishing chimes 27(5) 15-28 Available at - NIO, Goa

Page last updated on:2012-01-13

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