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Epinephelus ongus  (Bloch, 1790)

White-streaked grouper
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Epinephelus ongus   AquaMaps   Data sources: GBIF OBIS
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Image of Epinephelus ongus (White-streaked grouper)
Epinephelus ongus
Picture by Randall, J.E.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Serranidae (Sea basses: groupers and fairy basslets) > Epinephelinae
Etymology: Epinephelus: Greek, epinephelos = cloudy (Ref. 45335).

Environment / Climate / Range Ecology

Marine; brackish; reef-associated; depth range 20 - 60 m (Ref. 89707).   Tropical; 36°N - 27°S, 31°E - 179°W (Ref. 5222)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Indo-West Pacific: East Africa to the Ryukyu Islands, Marshall Islands, Fiji, New Caledonia, and northern Australia. Recently recorded from Tonga (Ref. 53797). Reported from Somalia and India by Heemstra & Randall in 1984 but valid records and specimens have not been found (Ref. 4787). Closely related to Epinephelus summana known only from the Red Sea.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 16 - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 27362)

Short description Morphology | Morphometrics

Dorsal spines (total): 11; Dorsal soft rays (total): 14-16; Anal spines: 3; Anal soft rays: 8. Distinguished by the following characteristics: juveniles black with white polka dots become numerous, smaller, and coalesce to form a pattern of wavy lines on the sides with growth (Ref. 37816); ctenoid scales on body except cycloid anteriorly above lateral line, thorax and abdomen; body with auxiliary scales; greatest depth of body 2.8-3.2 in SL; rounded caudal fin; short pelvic fins, 1.9-2.4 in head length (Ref. 90102); head length 2.3-2.5 times in SL; head pointed, flat interorbital area, dorsal head profile slightly convex; rounded preopercle, serrae small and mostly covered by skin; strongly convex upper edge of operculum, rear edge almost vertical, upper spine extending posterior to lower spine; posterior nostril diameter about twice that the anterior nostril; maxilla reaches to or slightly vertical at rear edge of eye; small, embedded scales on maxilla; 2-4 rows of small teeth at midlateral part of lower jaw; canines at front of jaws small or absent (Ref. 89707).

Biology     Glossary (e.g. epibenthic)

Inhabits inner coastal and lagoon reefs, also in brackish waters where it occurs in ledges and caves (Ref. 5213). Feeds on crustaceans and small fishes (Ref. 89707). Adults usually in 20+ m depth (Ref. 48635). Solitary (Ref 90102).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator : Heemstra, Phillip C. | Collaborators

Heemstra, P.C. and J.E. Randall, 1993. FAO Species Catalogue. Vol. 16. Groupers of the world (family Serranidae, subfamily Epinephelinae). An annotated and illustrated catalogue of the grouper, rockcod, hind, coral grouper and lyretail species known to date. Rome: FAO. FAO Fish. Synop. 125(16):382 p. (Ref. 5222)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Preferred temperature (Ref. 115969): 24.5 - 28.6, mean 27.8 (based on 320 cells).
Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00754 - 0.01749), b=3.02 (2.90 - 3.14), in cm Total Length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  4.0   ±0.66 se; Based on food items.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (K=0.3).
Prior r = 0.41, 2 SD range = 0.09 - 1.93, log(r) = -0.89, SD log(r) = 0.78, Based on: 2 K, 1 tgen, 1 tmax, records
Vulnerability (Ref. 59153):  Low to moderate vulnerability (33 of 100) .
Price category (Ref. 80766):   Very high.