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Teleostei (teleosts) > Anguilliformes (Eels and morays) > Muraenesocidae (Pike congers)
Etymology: Gavialiceps: Hindi, ghariyal = gavial, saurian of Ganges, 1825 + Greek, kephale = head (Ref. 45335); bertelseni: Named in memory of Erik Bertelsen, leading ichthyologist and outstanding person (Ref. 44791).

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

Marine; bathydemersal; depth range 670 - 1200 m (Ref. 44791). Deep-water

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

Western Indian Ocean: southwestern slope of Madagascar.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 84.0 cm TL male/unsexed; (Ref. 44791)

Short description Identification keys | Morphology | Morphometrics

Bright brown, the back is somewhat darker than the belly. The edges of the dorsal and anal fin rays are dark in the caudal section of the body. The gill and mouth cavities are dark but do not show through the skin. The stomach and peritoneum are bright. The stomach is long, 2.2-2.3 times the length of the head, but does not reach above the anus (Ref. 44791).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Karmovskaya, E.S., 1994. Systematics and distribution of the eel genus Gavialiceps (Congridae) in the Indo-West Pacific. J. Ichthyol. 34(3):73-89. (Ref. 44791)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 13 November 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
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Ecology
Ecology

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Life cycle
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Egg(s)
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Anatomy
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Otoliths

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Swimming type
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Visual pigment(s)
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5313 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00132 (0.00056 - 0.00309), b=2.93 (2.73 - 3.13), in cm total length, based on LWR estimates for this (Sub)family-body shape (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): Moderate to high vulnerability (54 of 100).

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Gavialiceps bertelseni Karmovskaya, 1993