Thunnus alalunga   (Bonnaterre,  1788) (Fish)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Chordata
Class: Actinopterygii
Order:Perciformes
Family:Scombridae

Image copyrights: Michel Bariche

Description
Size: 100-140 cm.

Max. weight reported: 60.3 kg.

Color: Blue black on back of body, silvery below; an iridescent blue lateral band runs along sides. Spinous dorsal fin hyaline, dusky tipped; soft dorsal and anal fins light yellow, anal finlets silvery or dusky; posterior margin of caudal fin white.

Body torpedo-shaped, its depth greatest near level of dorsal fin. Gill rakers 25 to 32 on first arch. Two dorsal fins, separated by a narrow interspace; first dorsal fin with 13 or 14 spines and second dorsal fin with 13 to 15 soft rays, followed by 7 to 9 finlets. Anal fin with 13 to 15 soft rays, followed by 7 or 8 finlets. Pectoral fins remarkably long, about 30% of fork length or longer, usually reaching nearly or quite to second dorsal finlet. Caudal peduncle very slender, bearing on each side a strong lateral keel between two smaller keels. Liver with striations on ventral surface; gasbladder present, running full length of body cavity.

Dioecious, external fertilization, nonguarders, open water/substratum egg scatterers. The sex ratio in catches is about 1:1 for immature individuals, but males predominate among mature fishes, which is possibly due to both differential mortality of sexes and differential growth rate after maturity. Eggs and larvae are pelagic

Max. age reported: 9 years


Synonym (s)
Thunnus alalunga Jones and Silas, 1961
Germo alalunga (Bonnaterre, 1788)
(Senior synonym)
Germo germo (Lacepede, 1801)
(Junior synonym)
Germo germon (Lacepede, 1800)
(Junior synonym)
Germo germon steadi Whitley, 1933
(Junior synonym)
Orcynus alatunga (Gmelin, 1789)
(Ambiguous synonym)
Orcynus germo (Lacepede, 1801)
(Junior synonym)
Orcynus germon (Lacepede, 1800)
(Junior synonym)
Orcynus pacificus Cooper, 1863
(Junior synonym)
Scomber alalunga Bonnaterre, 1788
(Senior synonym)
Scomber alalunga Cetti, 1777
(Ambiguous synonym)
Scomber alatunga Gmelin, 1789
(Ambiguous synonym)
Scomber albicans Walbaum, 1792
(Junior synonym)
Scomber germo Bennett, 1840
(Junior synonym)
Scomber germo Lacepede, 1801
(Junior synonym)
Scomber germon Lacepede, 1800
(Junior synonym)
Thunnus alalunga (Cetti, 1777)
(Ambiguous synonym)
Thunnus alalunga (Bonnaterre, 1788)
(Senior synonym)
Thunnus germo (Lacepede, 1801)
(Junior synonym)
Thunnus pacificus (Cuvier, 1832)
(Junior synonym)
Thynnus alalunga (Bonnaterre, 1788)
(Senior synonym)
Thynnus pacificus Cuvier, 1832
(Junior synonym)
Albacora alalonga (Bonnaterre, 1788)
(Misspelling)
Germo alalonga (Bonnaterre, 1788)
(Misspelling)
Orcynus alalonga (Bonnaterre, 1788)
(Misspelling)
Thunnus alalonga (Bonnaterre, 1788)
(Misspelling)
Thynnus alalonga (Bonnaterre, 1788)
(Misspelling)

Common Name (s)
• Albacore (English)
Economic Importance and Threats
Importance:  Commercial
(Fisheries, gamefish.)

Ecology
Habitat:  Pelagic
Trophic Level:  Tertiary Consumer
Prey:  Fishes, crustaceans and squids
Predator:  Billfishes, Thunnus albacares, Thunnus maccoyii, Thunnus obesus, sharks
IUCN Status:  Data Deficient

Biogeography


• INDIA
• Andaman and Nicobar Islands INDIA

Literature Source(s)
  • Talwar, PK and Kacker, RK (1984) Commercial sea fishes of India ZSI, Calcutta 997 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
  • Froese, R and Pauly, D (2000) Fishbase 2000: Concepts, design and data sources ICLARM 344 pp Available at - http://www.fishbase.org
  • (2003) IUCN Red list of threatened species Available at - http://www.iucnredlist.org/
  • 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 - http://www.fao.org/docrep/009/ad468e/ad468e00.HTM#Contents
  • 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 - http://www.fao.org/docrep/009/e9163e/e9163e00.htm
  • Talwar, PK (1990) Fishes of Andaman and Nicobar Islands: A synoptic survey Journal of the Andaman Science Association Andaman Science Association, Port Blair 6(2) 71-102 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 - eprints.cmfri.org.in/3975/1/Special_Publication_No_12_Revised.pdf

Page last updated on:2011-12-07

Back to Search