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Anguilliformes (Eels and morays) >
Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
More on author: Shaw.
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino; acqua dolce; salmastro associati a barriera corallina; distribuzione batimetrica 0 - 51 m (Ref. 58302). Tropical; 38°N - 36°S, 18°E - 129°W
Indo-Pacific: East Africa (Ref. 33390) to Marquesas and Mangaréva, north to the Ryukyu and Hawaiian islands, south to Lord Howe Island. Southeast Atlantic: South Africa.
Size / Peso / Age
Maturità: Lm ?  range ? - ? cm
Max length : 120 cm TL maschio/sesso non determinato; (Ref. 1602); common length : 80.0 cm TL maschio/sesso non determinato; (Ref. 30573)
Spine dorsali (totale) : 0; Raggi dorsali molli (totale) : 0; Spine anali: 0; Raggi anali molli: 0; Vertebre: 127 - 132. Mouth white inside, contrasting the outer dark skin with small white spots (Ref. 30404, 48635).
Body shape (shape guide): eel-like; Cross section: compressed.
Occurs in coral-rich areas of lagoon and seaward reefs from depths of 1 m to at least 36 m. Prefers very shallow depth and juveniles often in intertidal zones (Ref. 30404). Benthic (Ref. 58302). Often seen hunting during low tide among partly exposed reefs (Ref. 48635). Feeds mainly on fishes, also on crustaceans, by day and probably also at night (Ref. 13550). Caught with various nets (Ref. 30573). Minimum depth reported taken from Ref. 86942.
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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. 130435: Version 2025-1)
Threat to humans
Reports of ciguatera poisoning (Ref. 4690)
Human uses
Pesca: scarso interesse commerciale; Acquario: Commerciale
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 24.5 - 29, mean 28 °C (based on 1172 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00059 (0.00038 - 0.00090), b=3.32 (3.20 - 3.44), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 4.0 ±0.70 se; based on food items.
Resilienza (Fonte Biblio.
120179): Molto basso, tempo minimo di raddoppiamento della popolazione più di 14 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): High to very high vulnerability (72 of 100).
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Nutrients (Ref.
124155): Calcium = 24.3 [13.2, 39.6] mg/100g; Iron = 0.458 [0.266, 0.796] mg/100g; Protein = 18.9 [16.6, 21.5] %; Omega3 = 0.105 [0.046, 0.287] g/100g; Selenium = 44.3 [23.5, 86.2] μg/100g; VitaminA = 78 [22, 276] μg/100g; Zinc = 0.944 [0.660, 1.331] mg/100g (wet weight);