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Actinopterygii (ray-finned fishes) > Anguilliformes (Eels and morays) > Muraenidae (Moray eels) > Muraeninae
Etymology: Gymnothorax: Greek, gymnos = naked + Greek, thorax, -akos = breast (Ref. 45335); ypsilon: ypsilon after the 20th letter of the Greek alphabet, in reference to the Y-shaped dark bars often found on this species (Ref. 10659). More on author: Randall.

Environment / Climate / Range Ecology

Marine; demersal; depth range 120 - 185 m (Ref. 58302). Subtropical, preferred ?

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Pacific Ocean: southern Japan and the Hawaiian Islands.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 89.0 cm TL male/unsexed; (Ref. 35990); 77.6 cm TL (female)

Short description Morphology | Morphometrics

Anal spines: 0; Anal soft rays: 151 - 154; Vertebrae: 141 - 153. A species of Gymnothorax of moderate length. Dorsal fin moderately high, its origin before gill opening. Anus before mid-body. Jaw teeth sharp and uniserial. Body creamy light brown with 26-35 distinct, narrow, dark crossbars extending onto fins (some bars on most specimens Y-shaped). Anterior part of head uniformly light brown. Anal fin with a white margin (Ref. 10659). MVF 5-56-149 (Ref. 35990).

Benthic (Ref. 58302).

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

Main reference Upload your references | References | Coordinator | Collaborators

Böhlke, E.B. and J.E. Randall, 2000. A review of the moray eels (Anguilliformes: Muraenidae) of the Hawaiian Islands, with descriptions of two new species. Proc. Acad. Nat. Sci. Philad. 150:203-278. (Ref. 35990)

IUCN Red List Status (Ref. 115185)

Not Evaluated

CITES (Ref. 94142)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO(Publication : search) | FisheriesWiki |

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00095 (0.00047 - 0.00196), b=3.10 (2.93 - 3.27), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).

Trophic Level (Ref. 69278): 4.1 ±0.7 se; Based on size and trophs of closest relatives

Resilience (Ref. 69278): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).

Vulnerability (Ref. 59153): High vulnerability (57 of 100) .

Entered by Garilao, Cristina V.

Modified by Ortañez, Auda Kareen

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Gymnothorax ypsilon Hatooka & Randall, 1992