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

The Onion Trevally is a relatively deep body species that has a long filament at the front of the second dorsal fin. It occurs in inshore and continental shelf waters of the tropical Indo-West Pacific.

An Onion Trevally caught at Entrance Island

An Onion Trevally caught at Entrance Island
Photographer: Mark Mikkelsen © Mark Mikkelsen

Standard Common Name

Onion Trevally

Alternative Name/s

Blue-spined Trevally, Coastal Trevally, Diverse Trevally, Japanese Trevally, 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, around the tropical north and south to the central coast of New South Wales.

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, Carangidae,