From fishbase....
Family: Serranidae (Sea basses: groupers and fairy basslets), subfamily: Epinephelinae picture (Eplan_u0.jpg) by Randall, J.E.
Show available picture(s) for Epinephelus lanceolatus
AquaMaps | Point map
Order: Perciformes (perch-likes)
Class: Actinopterygii (ray-finned fishes)
FishBase name: Giant grouper
Max. size: 270 cm TL (male/unsexed; Ref. 5213); max. published weight: 400.0 kg (Ref. 26367)
Environment: reef-associated; brackish; marine; depth range - 100 m
Climate: tropical; 28°N - 39°S, 24°e - 122°w
Importance: fisheries: subsistence fisheries; aquaculture: commercial; gamefish: yes; aquarium: commercial
Resilience: Very low, minimum population doubling time more than 14 years(Preliminary K or Fecundity.)
Distribution:
Gazetteer Indo-Pacific: Red Sea to Algoa Bay, South Africa and eastward to the Hawaiian and Pitcairn islands, north to southern Japan, south to Australia. Absence in the Persian Gulf is puzzling.
Morphology: Dorsal spines (total): 11 - 11; Dorsal soft rays (total): 14 16; Anal spines: 3; Anal soft rays: 8. Dorsal fin spines of large individuals increase in size from front to back. It is the largest of all coral reef dwelling bony fishes (Ref. 37816).
Biology: The largest bony fish found in coral reefs (Ref. 9710). Common in shallow waters. Found in caves or wrecks; also in estuaries. Individuals more than a meter long have been caught from shore and in harbors. Juveniles secretive in reefs and rarely seen (Ref. 48635). Feeds on spiny lobsters, fishes, including small sharks and batoids, and juvenile sea turtles and crustaceans. In South African estuaries, the main prey item is the mud crab, Scylla serrata. Unconfirmed reports of fatal attacks on humans. Nearly wiped out in heavily fished areas (Ref. 9710). In the Hong Kong live fish markets (Ref. 27253). Large individuals may be ciguatoxic (Ref. 37816).
Red List Status: Vulnerable (VU) (A2d), 01-Aug-1996, IUCN Grouper and Wrasse Specialist Group (Ref. 53964)
Dangerous: traumatogenic , Halstead, B.W., P.S. Auerbach and D.R. Campbell. 1990
Coordinator: Heemstra, Phillip C.
Main Ref: Heemstra, P.C. and J.E. Randall. 1993. (Ref. 5222)