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Epinephelus socialis (Günther, 1873)

Surge grouper
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Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Epinephelus socialis   AquaMaps   Data sources: GBIF OBIS
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Image of Epinephelus socialis (Surge grouper)
Epinephelus socialis
Picture by Randall, J.E.


Pitcairn country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Known from Ducie and Henderson (Ref. 121505). Museum: BPBM 16809. Ducie Atoll, BPBM 17150. Henderson Is., BPBM 17099. Also Refs. 4787, 87915, 89707, 41650.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/pc.html
National Fisheries Authority: http://www.spc.org.nc/coastfish/Countries/Pitcairn/pitcairn.htm
Occurrences: Occurrences Point map
Main Ref: Friedlander, A.M., J.E. Caselle, E. Ballesteros, E.K. Brown, A. Turchik and E. Sala, 2014
National Database:

Common names from other countries

Classification / Names Nomi Comuni | Sinonimi | Catalog of Fishes(Genere, Specie) | ITIS | CoL | WoRMS | Cloffa

> Perciformes/Serranoidei (Groupers) > Epinephelidae (Groupers)
Etymology: Epinephelus: Greek, epinephelos = cloudy (Ref. 45335).
  More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range Ecologia

marino associati a barriera corallina; distribuzione batimetrica 0 - 10 m (Ref. 89707), usually 0 - 3 m (Ref. 9710).   Tropical; 30°N - 29°S, 139°E - 123°W (Ref. 5222)

Distribuzione Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri

Pacific Ocean: islands of Oceania; Ogasawara Islands, Marcus Islands, Mariana Islands, Marshall Islands, Phoenix Islands, American Samoa, Cook Islands, Line Islands, Society Islands, Rapa, Tuamoto Islands, and the Pitcairn Group. Unknown in Hawaii, the Marquesas, Caroline Islands, nor in any Melanesian islands.

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 52.0 cm TL maschio/sesso non determinato; (Ref. 9710)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 11; Raggi dorsali molli (totale) : 14 - 16; Spine anali: 3; Raggi anali molli: 8. Preopercle rounded, finely serrate; upper edge of the operculum sinuous; nostril subequal; maxilla reaches past vertical at rear edge of the eye. Pectoral fins fleshy. Head and body whitish, with small close-set blackish-brown spots, those on the rear part of the body coalesced to form irregular longitudinal bands. Four dark blotches usually at the base of the dorsal fin and a fifth forming a dark saddle blotch on the peduncle. Fins with small white spots and whitish margins, usually with a black submarginal band; body depth contained 2.9-3.4 times in SL; head length 2.4-2.6 times in SL (Ref. 89707).

Biologia     Glossario (es. epibenthic)

This shallow-water species is more common on atolls than high islands, and usually found in exposed outer-reef areas. Not dependent on coral cover (Ref. 89707). Juveniles and occasionally adults are collected from tide pools. Feeds on crustaceans (mainly grapsid crabs), octopi, and fishes.

Life cycle and mating behavior Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve

Main reference Upload your references | Bibliografia | Coordinatore | Collaboratori

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. 130435)

  Least Concern (LC) ; Date assessed: 21 November 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesca: scarso interesse commerciale
FAO(Publication : search) | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
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Diet compositions
Food consumptions
Food rations
Predatori
Ecology
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
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Life cycle
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Visual pigment(s)
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Toxicities (LC50s)
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Estimates based on models

Preferred temperature (Ref. 115969): 25.4 - 29.4, mean 28.1 (based on 712 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01175 (0.00571 - 0.02419), b=3.04 (2.88 - 3.20), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.64 se; based on food items.
Resilienza (Ref. 120179):  Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Moderate vulnerability (41 of 100).
Price category (Ref. 80766):   Very high.