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Gracila albomarginata (Fowler & Bean, 1930)

Masked grouper
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Native range | All suitable habitat | Point map | Year 2050
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Gracila albomarginata   AquaMaps   Data sources: GBIF OBIS
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Maldives country information

Common names: Boakuda faana, Mérou bord rouge, Mérou pie
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Museum: Malé, CAS 61349 (Ref. 5222). MRS 321/88 (22.9 cm SL) (Ref. 11303). Also Ref. 4787, 33390, 81697.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/mv.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Randall, J.E. and C. Anderson, 1993
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: Gracila: Latin, gracilis = slender, thin (Ref. 45335).
  More on authors: Fowler & Bean.

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

marino associati a barriera corallina; distribuzione batimetrica 0 - 120 m (Ref. 9710), usually 15 - 120 m (Ref. 9710).   Tropical; 29°N - 24°S, 38°E - 144°W (Ref. 5222)

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

Indo-Pacific: northern Mozambique to French Polynesia, north to Okinawa, south to the northern Great Barrier Reef. Unknown from the Red Sea and Persian Gulf. Recorded from Europa Island (MNHN 1992-0983, Ref. 33390).

Size / Peso / Age

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL maschio/sesso non determinato; (Ref. 9710)

Short description Chiavi di identificazione | Morfologia | Morfometria

Spine dorsali (totale) : 9; Raggi dorsali molli (totale) : 14 - 16; Spine anali: 3; Raggi anali molli: 9 - 10. Readily identified by the white square on their sides, blue in natural light (Ref. 48635). Differs from all shallow water Micronesian Cephalopholis except C. polleni by having truncate tail (Ref. 37816). Characterized further by: greenish or reddish brown to brownish grey body color , with several narrow curved dark bars on the midlateral part of the body; dark brown spot midlaterally on the caudal peduncle; 3-5 blue lines across head; oblong body, slightly compressed, depth contained 2.6-3.3 times in SL; width of body 1.8-2.3 times in depth; head smaller compared to other groupers, head length 2.9-3.2 times in SL; evenly convex dorsal head profile; slightly convex interorbital area, width greater than eye diameter; narrow preorbital, depth distinctly less than eye diameter, preorbital depth 10-15 times in HL; rounded preopercle, finely serrate, smooth and fleshy lower edge; ventral edge of subopercle and interopercle smooth; posterior and anterior nostril subequal in size; posterior part of maxilla with hook-shaped or step-like expansion on ventral edge in adults; well developed supramaxilla; pair of small canines at front of jaws; presence of palatine teeth; 2 rows of teeth on midside of lower jaw, inner teeth depressible and twice as long as outer teeth (Ref. 89707).

Biologia     Glossario (es. epibenthic)

An active swimmer usually found on outer reef slopes and channels adjacent to deep water. Hovers above the bottom and probably feeds primarily on fishes (Ref. 9710). It is uncommon and usually solitary, however Myers (1989, Ref. 4538) reported of occasional sightings of groups of 3 or 4 fish. Solitary, hovering in midwater (Ref 90102). Minimum depth reported taken from Ref. 128797.

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: 17 November 2016

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Pesca: scarso interesse commerciale; Pesce da pesca sportiva: si
FAO(Publication : search) | FishSource | Sea Around Us

Informazioni ulteriori

Trophic ecology
Prede
Diet compositions
Food consumptions
Food rations
Predatori
Ecology
Ecologia
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Population dynamics
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Distribution
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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): 22.1 - 28.9, mean 27.2 (based on 604 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00558 - 0.02364), b=3.04 (2.88 - 3.20), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.73 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):  Low to moderate vulnerability (30 of 100).
Price category (Ref. 80766):   Very high.