Bullet tuna

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Bullet Tuna

Least Concern  (IUCN 3.1)[1]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Scombriformes
Family: Scombridae
Genus: Auxis
Species:
A. rochei
Binomial name
Auxis rochei
(Risso, 1810)
Synonyms[2]
  • Scomber rochei Risso, 1810
  • Scomber bisus Rafinesque, 1810
  • Auxis bisus (Rafinesque, 1810)
  • Thynnus rocheanus Risso, 1827
  • Thunnus rocheanus (Risso, 1827)
  • Auxis vulgaris Cuvier, 1832
  • Auxis thynnoides Bleeker, 1855
  • Auxis ramsayi
    Castelnau
    , 1879
  • Auxis maru Kishinouye, 1915

The bullet tuna (Auxis rochei) is a species of tuna, in the family Scombridae, found circumglobally in tropical oceans, including the Mediterranean Sea,[2] in open surface waters to depths of 50 m (164 ft). The population of bullet tuna in the Eastern Pacific was classified as a subspecies of A. rochei, A. rochei eudorax, but some authorities regard this as a valid species Auxis eudorax.[3] Its maximum length is 50 centimetres (20 in).

Sometimes called bullet mackerel, the bullet tuna is a comparatively small and slender tuna. It has a triangular first

pectoral fins, is relatively small. There are the usual finlets of the tuna. There is a small corselet of small scales
around the pectoral region of the body.

Bullet tunas are blue-black on the back with a pattern of zig-zag dark markings on the upper hind body, and silver below. The fins are dark grey.

They feed on small fish,

.

References

  1. .
  2. ^ a b Froese, Rainer; Pauly, Daniel (eds.) (2018). "Auxis rochei" in FishBase. February 2018 version.
  3. ^ William Eschmeyer, ed. (30 April 2018). "Species that contain: Auxis and eudorax". Catalog of Fishes. California Academy of Sciences. Retrieved 7 May 2018.