Animal Species:Onion Trevally, Carangoides caeruleopinnatus (Ruppell, 1830)

The Onion Trevally can be recognised by its relatively deep body and the long filament at the front of the second dorsal fin. The fish is bluish-grey above and silver below. There is usually an indistinct dark blotch on the operculum.

An Onion Trevally caught at Entrance Island

Mark Mikkelsen © Mark Mikkelsen

Standard Common Name

Onion Trevally

Alternative Name/s

This species has also been called the Blue-spined Trevally, Coastal Trevally, Diverse Trevally, Japanese Trevally, and Onion-ring Trevally.

Identification

The Onion Trevally can be recognised by its relatively deep body and the long filament at the front of the second dorsal fin. The fish is bluish-grey above and silver below. There is usually an indistinct dark blotch on the operculum.

It has been called Carangoides uii in many publications.

Size range

It grows to 25 cm in length.

Distribution

The Onion Trevally is a pelagic species that occurs in inshore and continental shelf waters of the tropical Indo-West Pacific.

In Australia it is known from the north-western coast of Western Australia, and around the tropical north to north-eastern Queensland.

The map below shows the Australian distribution of the species based on public sightings and specimens in Australian Museums.  Source: Atlas of Living Australia.

Carangoides caeruleopinnatus

Distribution by collection data

Ozcam map of Onion Trevally specimens in the Australian Museums.

What does this mean?

Classification

Species:
caeruleopinnatus
Genus:
Carangoides
Family:
Carangidae
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Allen, G.R. 1997. Marine Fishes of Tropical Australia and South-east Asia. Western Australian Museum. Pp. 292.
  2. Randall, J.E., Allen, G.R. & R.C. Steene. 1997. Fishes of the Great Barrier Reef and Coral Sea. Crawford House Press. Pp. 557.


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Tags Ichthyology, Onion Trevally, Carangoides caeruleopinnatus, deep body, long filament, silver underside, blotches/mottled, Blue-spined Trevally, Coastal Trevally, Diverse Trevally, Japanese Trevally, Onion-ring Trevally, Carangoides uii, 10 cm - 30 cm, pelagic, inshore water, continental shelf, tropical water, marine, fish, bluish-grey,