Animal Species:Oval Rockcod, Triso dermopterus (Temminck & Schlegel, 1843)

The Oval Rockcod is dark brown to black with dark fins. The species has an anti-tropical distribution.

Oval Rockcod, Triso dermopterus

Mark McGrouther © Australian Museum

Standard Common Name

Oval Rockcod

Alternative Name/s

Oval Cod, Oval Grouper, Sooty Cod, Woore's Rock-cod, Woore's Rockcod

Identification

The Oval Rockcod has an oblique mouth and a projecting lower jaw. It has small ctenoid scales covering the head and body. The species is dark brown to black with dark fins.

Size range

The Oval Rockcod grows to 68 cm in length.

Distribution

The species has an anti-tropical distribution. In the Northern Hemisphere it is found in marine waters of Korea, Japan, Taiwan, Hong Kong and China. In the Southern Hemisphere it is recorded in a few localities off Western Australia and from southern Queensland to northern 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.

Triso dermopterus

Distribution by collection data

Ozcam map of Oval Rockcod specimens in the Australian Museums.

What does this mean?

Habitat

It is usually found on rocky or soft bottoms at depths between 22 m and 103 m.

Economic/social impacts

It has a high edibility rating.  Angler, David Moore stated that "A 'family fight' ensued over the last fillet left on the plate! The flesh was white, moist and flaky. It drew comparisons with the way smoked cod comes apart on the fork. It was both attractive to the eye and delicious. It was up against snapper and pearl perch and was “better than both” as voted by a family of four that eat a lot of fish."

Classification

Species:
dermopterus
Genus:
Triso
Family:
Serranidae
Order:
Perciformes
Class:
Actinopterygii
Subphylum:
Vertebrata
Phylum:
Chordata
Kingdom:
Animalia

What does this mean?

References

  1. Heemstra, P.C. & J.E. Randall. 1993. Groupers of the World. (Family Serranidae, Subfamily Epinephelinae). An Annotated and Illustrated Catalogue of Grouper, Rockcod, Hind, Coral Grouper and Lyretail Species Known to Date. FAO Species Catalogue. Vol. 16. FAO. Rome. Pp. 382.
  2. Hoese, D.F., Bray, D.J., Paxton, J.R. & G.R. Allen. 2006. Fishes. In Beesley, P.L. & A. Wells. (eds) Zoological Catalogue of Australia. Volume 35. ABRS & CSIRO Publishing: Australia. parts 1-3, pages 1-2178.


Mark McGrouther , Collection Manager, Ichthyology
Last Updated:

Tags Fishes, Ichthyology, Oval Rockcod, Triso dermopterus, Serranidae, Oval Cod, Oval Grouper, Sooty Cod, Woore's Rock-cod, Woore's Rockcod, dark brown, dark fins, anti-tropical, oblique mouth, projecting lower jaw, 30 cm - 1 m, rocky bottom, soft substrate, marine,