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Gracila albomarginata (Fowler & Bean, 1930)

Masked grouper
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Gracila albomarginata   AquaMaps   Data sources: GBIF OBIS
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > 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 Ecology

Marine; reef-associated; depth range 0 - 120 m (Ref. 9710), usually 15 - 120 m (Ref. 9710). Tropical; 29°N - 24°S, 38°E - 144°W (Ref. 5222)

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | 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 / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm TL male/unsexed; (Ref. 9710)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 9; Dorsal soft rays (total): 14 - 16; Anal spines: 3; Anal soft rays: 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).

Biology     Glossary (e.g. 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 | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | 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. 130435)

  Least Concern (LC) ; Date assessed: 17 November 2016

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: minor commercial; gamefish: yes
FAO - Publication: search | FishSource | Sea Around Us

More information

Trophic ecology
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Ecology
Ecology
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Length-length rel.
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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 22.1 - 28.9, mean 27.2 °C (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.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (30 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 38.4 [23.0, 66.3] mg/100g; Iron = 0.569 [0.315, 0.923] mg/100g; Protein = 18.5 [16.7, 20.1] %; Omega3 = 0.165 [0.111, 0.251] g/100g; Selenium = 35 [21, 63] μg/100g; VitaminA = 161 [59, 504] μg/100g; Zinc = 0.929 [0.646, 1.312] mg/100g (wet weight);