Giant Oystercracker, Trachinotus anak Ogilby 1909

Other Names: Giant Oystercracker Dart, Indo-Pacific Permit, Oyster Pompano, Oyster-eater, Oyster-eater Dart

A Giant Oystercracker, Trachinotus anak, off Townsville, Queensland, July 2020. Source: @kopper / License: CC By Attribution-NonCommercial

A large silvery green to bluish-grey pompano, with silvery sides becoming white below, sometimes with a bronze or greenish-golden tinge. The second dorsal and caudal fins are dusky orange to almost black, with darker leading edges and fin tips, the anal fin is a bright to brownish-yellow (without a dark leading edge), the pelvic fins are pale to bright yellow, and the pectoral fins are dark.

Cite this page as:
Bray, D.J. 2022, Trachinotus anak in Fishes of Australia, accessed 21 Jun 2024,

Giant Oystercracker, Trachinotus anak Ogilby 1909

More Info


Darwin, Northern Territory, to Moreton Bay, Queensland. Elsewhere the species occurs in the west Pacific: Taiwan, New Caledonia and New Zealand.
Inhabits shallow coastal waters including estuaries and sand flats.


Dorsal fin VI, I + 19; Anal fin II, I + 17; Pectoral fin i + 18; Gill rakers 6 + 10; Vertebrae 10 +14. 

Body compressed, oval in young to suboval in large adults; snout broadly rounded (humped); upper jaw reaching to below the middle of eye. Lateral line weakly convex above pectoral fins, becoming straight posteriorly. Scutes and caudal-peduncle grooves absent.
Dorsal and anal fin lobes relatively short, 



Feeds mostly on hard shelled benthic invertebrates, including molluscs such as oysters, and crabs.


Taken by recreational fishers, and as bycatch in commercial fisheries.


Little is known about the biology and ecology of this species.

Similar Species

The similar Snubnose Dart, Trachinotus blochii, has longer dorsal and anal-fin lobes in adults with a black leading edge, and a black margin on the caudal-fin lobes.


The species is presumably named after the Hebrew Anak people and members of the Anakim or Anakites - giant people mentioned briefly in the Old Testament - in reference to the large size attained by this species. 

Species Citation

Trachinotus anak Ogilby 1909, Report of the Marine Department Queensland (1908-1909) Appendix 5:19. Type locality: deep water off Moreton Bay and Great Sandy Strait, Queensland


Bray, D.J. 2022


Atlas of Living Australia

Giant Oystercracker, Trachinotus anak Ogilby 1909


Grant, E.M. 1975. Guide to Fishes. Brisbane : Queensland Government, Co-ordinator General’s Department 640 pp. 

Johnson, J.W. 2010. Fishes of the Moreton Bay Marine Park and adjacent continental shelf waters, Queensland, Australia. pp. 299-353 in Davie, P.J.F. & Phillips, J.A. Proceedings of the Thirteenth International Marine Biological Workshop, The Marine Fauna and Flora of Moreton Bay. Memoirs of the Queensland Museum 54(3) 

Larson, H.K. & Williams, R.S. 1997. Darwin Harbour fishes: a survey and annotated checklist. pp. 339-380 in Hanley, H.R., Caswell, G., Megirian, D. & Larson, H.K. (eds). The Marine Flora and Fauna of Darwin Harbour, Northern Territory, Australia. Proceedings of the Sixth International Marine Biology Workshop. Darwin : Museum and Art Gallery of the Northern Territory 466 pp.

Larson, H.K., Williams, R.S. & Hammer, M.P. 2013. An annotated checklist of the fishes of the Northern Territory, Australia. Zootaxa 3696(1): 1-293

Lin, P.-L. & Shao, K.-T. 1999. A review of the carangid fishes (Family Carangidae) from Taiwan with descriptions of four new records. Zoological Studies 38(1): 33-68.

Munro, I.S.R. 1961. Handbook of Australian fishes. Nos 1–42. Australian Fisheries Newsletter 15–17, 19, 20: 1-172 [published as separates 1956–1961] 

Ogilby, J.D. 1909. Report on a large fish destructive to oysters. Report of the Marine Department of Queensland (1908–1909) Appendix 5: 19-21

Smith, G.S. 1981. Southern Queensland's oyster industry. 

Smith-Vaniz, W.F. 1999. Family Carangidae. pp. 2659-2756 in Carpenter, K.E. & Niem, T.H. (eds). The Living Marine Resources of the Western Central Pacific. FAO Species Identification Guide for Fisheries Purposes. Rome : FAO Vol. 4 pp. 2069-2790.

Smith-Vaniz, W.F. & Walsh, S.J. 2019. Indo-West Pacific species of Trachinotus with spots on their sides as adults, with description of a new species endemic to the Marquesas Islands (Teleostei: Carangidae). Zootaxa 4651(1): 1-37.

Smith-Vaniz, W.F. & Williams, I. 2016. Trachinotus anak (errata version published in 2017). The IUCN Red List of Threatened Species 2016: e.T20436452A115383762. Downloaded on 21 June 2021.

Yearsley, G.K., Last, P.R. & Ward, R.D. (eds) 1999. Australian Seafood Handbook. Hobart : CSIRO Marine Research 460 pp.

Quick Facts

CAAB Code:37337073

Conservation:IUCN Data Deficient

Depth:0-50 m

Fishing:Recreational fish

Habitat:Coastal, pelagic

Max Size:180 cm

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Species Maps

CAAB distribution map