Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Muraenidae
(Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
More on author: Girard.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 10 - 100 m (Ref. 9761), usually 10 - 19 m (Ref. 89891). Subtropical; 67°N - 36°N, 118°W - 153°W
Western Atlantic: southern Florida to Texas and Yucatan in Mexico, but most common west of Mississippi River Delta.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 99.0 cm TL male/unsexed; (Ref. 40637); max. published weight: 1.4 kg (Ref. 40637)
Morphology | Morphometrics
Brown, with small yellow or white spots on body and lower half of fins (Ref. 26938).
Abundant in seagrass beds and banks from 10-19 m depth. Rarely found in bays; absent from coral reefs.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)
IUCN Red List Status (Ref. 125652)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 25.8 - 28.2, mean 27.3 °C (based on 315 cells).
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00048 (0.00025 - 0.00090), 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
): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): High vulnerability (60 of 100).
Nutrients (Ref. 124155
): Calcium = 23.3 [12.4, 42.5] mg/100g ; Iron = 0.565 [0.341, 1.003] mg/100g ; Protein = 20.4 [18.2, 22.7] % ; Omega3 = 0.18 [0.08, 0.48] g/100g ; Selenium = 24.1 [12.6, 49.6] μg/100g ; VitaminA = 39.5 [9.7, 148.7] μg/100g ; Zinc = 0.706 [0.470, 1.065] mg/100g (wet weight);