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Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Lethrinidae (Emperors or scavengers) > Monotaxinae
Etymology: Gymnocranius: Greek, gymnos = naked + Greek, kranion = skull (Ref. 45335).
More on author: Bleeker.

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

Marine; reef-associated; non-migratory; depth range 20 - 80 m (Ref. 2295). Tropical; 23°N - 10°S, 95°E - 157°E

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: Indo-Malaysian Archipelago and South China Sea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 35.0 cm TL male/unsexed; (Ref. 2295); common length : 30.0 cm TL male/unsexed; (Ref. 2295)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 10; Dorsal soft rays (total): 10; Anal spines: 3; Anal soft rays: 10.

Occurs over sand, mud, and rubble areas. Feed mainly on small bottom-living gastropods. Marketed fresh or dried-salted. Also caught with bottom longlines and handlines (Ref. 9775).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Carpenter, K.E. and G.R. Allen, 1989. FAO Species Catalogue. Vol. 9. Emperor fishes and large-eye breams of the world (family Lethrinidae). An annotated and illustrated catalogue of lethrinid species known to date. FAO Fish. Synop. 125(9):118 p. Rome: FAO. (Ref. 2295)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 12 April 2023

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
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Human related
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Ciguatera cases
Stamps, coins, misc.

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References
References

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Summary page | Point data | Common names | Photos

Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 24.2 - 28.7, mean 28 °C (based on 348 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5010 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01698 (0.00734 - 0.03932), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.58 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 vulnerability (25 of 100).

Price category (Ref. 80766): High.

Gymnocranius frenatus Bleeker, 1873