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Teleostei (teleosts) > Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
More on authors: Weber & deBeaufort.

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

Marine; benthopelagic; depth range 1 - 15 m (Ref. 90102). Tropical

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

Indo-West Pacific: Red Sea, Taiwan, the Philippines and Papua New Guinea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 57.5 cm TL male/unsexed; (Ref. 129614)

Short description Identification keys | Morphology | Morphometrics

Vertebrae: 146. This species is distinguished by the following characters: moderately elongate and unpatterned, with a narrow tail and anus at about mid-body, preanal length 1.8-2.1 times in TL; head 8.0-9.9 in TL; body depth at gill opening 15-19 in TL; teeth uniserial, short, and blade-like with serrations on lower margins; mean vertebral formula 4-61-144; body is uniformly yellowish gray with white margin on dorsal and anal fins; head pores distinctly white in color (Ref. 129614).

Collected in less than 0.5 m (Ref. 10713). Usually in sand and mud bottoms to at least 15 m (Ref 90102).

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

Main reference Upload your references | References | Coordinator | Collaborators

Smith, D.G., Y. Hibino and H.-C. Ho, 2018. Two new elongate unpatterned moray eels from Taiwan and Vietnam, with notes on two congeners (Anguilliformes: Muraenidae). Zootaxa 4454(1):33-42. (Ref. 129614)

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

Data deficient (DD) ; Date assessed: 26 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

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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
Countries
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Introductions
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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
Heterozygosity
Heritability

Human related
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Aquaculture profiles
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Ciguatera cases
Stamps, coins, misc.

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 22.5 - 28.4, mean 27.1 °C (based on 666 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00048 (0.00025 - 0.00091), b=3.28 (3.12 - 3.44), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.6 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (43 of 100).

Price category (Ref. 80766): Medium.

Gymnothorax angusticauda (Weber & de Beaufort, 1916)