White-streaked grouper (Epinephelus ongus)

Scientific name: Epinephelus ongus Bloch, 1790

The White-streaked grouper (Epinephelus ongus) is a brackish-water fish of the family Serranidae.

Biology

Inhabits inner coastal and lagoon reefs, also in brackish waters where it occurs in ledges and caves. Adults usually in 20+ m depth.

Source: FishBase, licensed CC BY-NC 4.0.

Scientific name: Epinephelus ongus
Family: Serranidae (Sea basses: groupers and fairy basslets)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 40.0
Depth range: 5–25 m (16–82 ft)
Environment: Marine; brackish; reef-associated; depth range 5 - 25 m
Climate: Tropical
Distribution: Indo-West Pacific: East Africa to the Ryukyu Islands, Marshall Islands, Fiji, New Caledonia, and northern Australia. Recently recorded from Tonga. Reported from Somalia and India by Heemstra & Randall in 1984 but valid records and specimens have not been found. Closely related to Epinephelus summana known only from the Red Sea.
Conservation status (IUCN): Least Concern (LC)
Threat to humans: Harmless
Uses: Fisheries: minor commercial
Resilience: Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3)

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

Last updated 27 September 2026