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> Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335).
Eponymy: Alf Johnson of Port Elizabeth, South Africa supplied Smith with “…many rare and valuable specimens”. [...] (Ref. 128868), visit book page.
More on author: Smith.

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

seewasser demersal; tiefenbereich 20 - 400 m (Ref. 100719). Subtropical

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Western Indian Ocean: Red Sea south to Algoa Bay, South Africa.

Size / Gewicht / Alter

Maturity: L_m ? range ? - ? cm
Max length : 130 cm TL Männchen/unbestimmt; (Ref. 5503)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

Wirbelzahl: 135 - 137. Pale brown with irregular, light spots anteriorly, larger and more rounded on tail and in young. Corner of mouth and gill opening dusky.

Inhabits crevices (Ref. 5503). Minimum depth based of 20m (Ref. 81209).

Life cycle and mating behavior Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fecundity | Larven

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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 Rote Liste Status (Ref. 130435: Version 2024-2)

nicht bedroht (LC) ; Date assessed: 17 August 2011

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

Harmless

Nutzung durch Menschen

Fischereien: weniger kommerziell

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Estimates based on models

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 (3.12 - 3.44), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.7 se; based on size and trophs of closest relatives

Widerstandsfähigkeit (Ref. 120179): sehr niedrig, Verdopplung der Population dauert mehr als 14 Jahre. (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (78 of 100).

Preiskategorie (Ref. 80766): Medium.

Gymnothorax johnsoni (Smith, 1962)