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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: Bleeker.
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
Θαλασσινό(ά) Υφαλόφιλο(α); εύρος βάθους 0 - 50 m (Ref. 30573). Tropical; 30°N - 25°S
Indo-Pacific: Red Sea and East Africa (Ref. 33390) to the Marquesas and Oeno Atoll (Pitcairn Group), north to the Ryukyu and Hawaiian islands, south to New Caledonia and the Austral Islands.
Μέγεθος / Βάρος / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm
Max length : 300 cm TL αρσενικό/απροσδιόριστο; (Ref. 9710); μεγ. δημοσιευμένο βάρος: 30.0 kg (Ref. 30404)
Ραχιαίες άκανθες (συνολικά) : 0; Εδρικές άκανθες: 0; Σπόνδυλοι: 137 - 143. Juveniles are tan with numerous large black spots. Adults have black specks that grade into leopard-like spots behind the head and a black area surrounding the gill opening.
Body shape (shape guide): eel-like.
Found in lagoon and seaward reefs. Commonly seen species along deep drop-offs and slopes in Indonesian waters (Ref. 48635). Benthic (Ref. 58302). Juveniles more secretive and occur on intertidal reef flats (Ref. 37816). It feeds primarily on fishes and occasionally on crustaceans. This is the largest Indo-Pacific moray eel (Ref. 30404), perhaps reaching 3 m in length. Because of its position at the top of the reef's food chain it is often ciguatoxic. Attacks humans when provoked (Ref. 3132). Minimum depth reported taken from Ref. 10713. Solitary in reef holes (Ref 90102).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Αβγά | Γονιμότητα | Προνύμφες
Observations on prespawning behavior include a pair entwined around one another lying on the bottom of the reef area (Ref. 93344).
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
αλιεία: παραδοσιακή αλιεία; Ενυδρείο: Δημόσια ενυδρεία
Εργαλεία
Special reports
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Διαδικτυακές πηγές
Estimates based on models
Preferred temperature (Αναφ.
123201): 25.5 - 29, mean 28.1 °C (based on 902 cells).
Phylogenetic diversity index (Αναφ.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00052 (0.00033 - 0.00084), b=3.28 (3.15 - 3.41), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref.
93245).
Τροφικό Επίπεδο (Αναφ.
69278): 3.9 ±0.64 se; based on food items.
Ελαστικότητα (Αναφ.
120179): Υψηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού < 15 μήνες (Fec = 200,000-300,000).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (90 of 100).
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Nutrients (Ref.
124155): Calcium = 13.9 [6.4, 22.6] mg/100g; Iron = 0.337 [0.184, 0.805] mg/100g; Protein = 18.8 [16.5, 21.5] %; Omega3 = 0.0798 [, ] g/100g; Selenium = 66.2 [30.4, 144.6] μg/100g; VitaminA = 33.1 [8.1, 132.9] μg/100g; Zinc = 0.763 [0.513, 1.122] mg/100g (wet weight);
