Spotted coralgrouper (Plectropomus maculatus)

Scientific name: Plectropomus maculatus Bloch, 1790

The Spotted coralgrouper (Plectropomus maculatus) is a marine fish of the family Serranidae.

Biology

Found in protected coastal reef in mixed algae and coral habitat. Common on inshore coastal reefs but absent in clear offshore reefs. Juveniles have a demersal existence in shallow water in reef habitats, especially around coral rubble. Migrate over short distances to spawn, forming aggregations. May move into shallow water to feed. Eggs float just below the water surface. Pelagic larvae are found in habitats similar to those of the adults. Juveniles feed on small fish and invertebrates such as crustaceans and squid. Commonly used for food. Its flesh is delicate and well appreciated.

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name: Plectropomus maculatus
Family: Serranidae (Sea basses: groupers and fairy basslets)
Order: Perciformes (Perch-like fish)
Class: Actinopterygii (Ray-finned fishes)
Maximum length: 100.0
Depth range: 5–100 m (16–328 ft)
Environment: Marine; reef-associated; depth range 5 - 100 m
Climate: Tropical
Distribution: Western Pacific: Thailand, Singapore, Philippines, Indonesia, Papua New Guinea, the Arafura Sea, Solomon Islands, and Australia (from Houtman Abrolhos in Western Australia to Gladstone, Queensland). This species was formerly listed as occurring in the western Indian Ocean based on a misidentification of Plectropomus pessuliferus.
Conservation status (IUCN): Least Concern (LC)
Threat to humans: Reports of ciguatera poisoning
Uses: Fisheries: commercial; aquaculture: commercial; gamefish: yes
Resilience: Medium, minimum population doubling time 1.4 - 4.4 years (K=0.21; tm=2-3)

Sources

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

Last updated 27 September 2026