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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 author: Bleeker.

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

Marine; reef-associated; depth range 1 - 15 m (Ref. 86942). Tropical; 30°N - 23°S

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

Indo-Pacific: Red Sea and East Africa (Ref. 33390) to the Society Islands, north to the Ryukyus, south to the Cook Islands; Mariana and Caroline islands in Micronesia.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 34.0 cm TL male/unsexed; (Ref. 90102)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 0; Vertebrae: 112 - 117. Dark brown with darker mottling, a lighter chin and throat, and white margins around the lip pores.

Inhabits shallow lagoons and seaward reefs. Often under large, loose dead coral pieces (Ref. 30404). Feeds on small fishes and crustaceans (Ref. 89972). Solitary (Ref 90102).

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

Main reference Upload your references | References | Coordinator | Collaborators

Chen, H.-M., K.-T. Shao and C.T. Chen, 1994. A review of the muraenid eels (Family Muraenidae) from Taiwan with descriptions of twelve new records. Zool. Stud. 33(1):44-64. (Ref. 6934)

IUCN Red List Status (Ref. 126983)

Least Concern (LC) ; Date assessed: 18 August 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

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Estimates based on models

Preferred temperature (Ref. 123201): 25.1 - 29.3, mean 28.3 °C (based on 2469 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 (3.13 - 3.43), in cm total length, based on LWR estimates for this Genus-BS (Ref. 93245).

Trophic level (Ref. 69278): 3.8 ±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): Low vulnerability (24 of 100).

Nutrients (Ref. 124155): Calcium = 57.9 [32.1, 113.3] mg/100g ; Iron = 0.554 [0.324, 1.119] mg/100g ; Protein = 18.8 [16.5, 21.4] % ; Omega3 = 0.114 [0.050, 0.329] g/100g ; Selenium = 26.6 [14.2, 56.7] μg/100g ; VitaminA = 99.6 [29.0, 312.8] μg/100g ; Zinc = 1.15 [0.80, 1.62] mg/100g (wet weight);

Gymnothorax richardsonii (Bleeker, 1852)