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Teleostei (teleosts) > Anguilliformes (Eels and morays) > Congridae (Conger and garden eels) > Congrinae
Etymology: Gnathophis: Greek, gnathos = jaw + Greek, ophis = serpent (Ref. 45335).
More on author: Bleeker.

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

Marine; benthopelagic; depth range 183 - 199 m (Ref. 54804). Temperate

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

Western Pacific: SW part of the Japanese Archipelago, South China seas, including the Philippines.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 41.5 cm TL male/unsexed; (Ref. 54804)

Short description Identification keys | Morphology | Morphometrics

Dorsal soft rays (total): 181 - 191; Anal soft rays: 128 - 132; Vertebrae: 121 - 131. Diagnosis: Unpaired fins with dark margins. Second lateral line pore and pores above the pectoral fin from 7th-8th to 11th-15th elevated. Vertebrae 121-131; trunk vertebrae 38-40. Lateral line pores to anus 30-33. Supraorbital canal 6; suborbital canal 8; preoperculomandibular canal 10; occipital commissure 3. Swim bladder reaches slightly behind the anus; stomach dark, while intestine and peritoneum are dark (Ref. 54804).

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

Main reference Upload your references | References | Coordinator | Collaborators

Karmovskaya, E.S., 2004. Benthopelagic bathyal conger eels of families Congridae and Nettastomatidae from the Western Tropical Pacific, with descriptions of ten new species. J. Ichthyol. 44(1):S1-S32. (Ref. 54804)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 01 February 2017

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
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Physiology
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Nutrients
Oxygen consumption
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Visual pigments
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Genetics
Genetics
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Stamps, coins, misc.

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 14.1 - 15.4, mean 15.2 °C (based on 4 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00063 (0.00029 - 0.00138), b=3.18 (3.00 - 3.36), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±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): Low to moderate vulnerability (32 of 100).

Gnathophis heterognathos (Bleeker, 1858)