Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Muraenidae
(Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 92 - 450 m (Ref. 37816), usually - m (Ref. ). Deep-water; 0°C -
Indo-West Pacific: Red Sea and East Africa to Samoa, north to the Ogasawara Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 64.7 cm TL male/unsexed; (Ref. 10713)
Vertebrae: 141. Greenish with yellowish spots; brown stripe from chin to anus and alongside anal.
Found in deep waters (Ref. 10713). May occur in crevices of steep drop-offs in as little as 25 m (Ref. 37816). Benthic (Ref. 58302).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Randall, J.E. and D. Golani, 1995. Review of the moray eels (Anguilliformes: Muraenidae) of the Red Sea. Bull. Mar. Sci. 56(3):849-880. (Ref. 10713)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 12.3 - 21.5, mean 18.3 °C (based on 75 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00048 (0.00026 - 0.00087), b=3.28 (3.13 - 3.43), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±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.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (53 of 100) .
Nutrients (Ref. 124155
): Calcium = 9.58 [4.55, 20.49] mg/100g ; Iron = 0.202 [0.112, 0.379] mg/100g ; Protein = 19.2 [16.9, 21.5] % ; Omega3 = 0.181 [0.075, 0.501] g/100g ; Selenium = 14.2 [5.6, 35.5] μg/100g ; VitaminA = 36.2 [6.4, 193.6] μg/100g ; Zinc = 0.438 [0.279, 0.702] mg/100g (wet weight);