Actinopterygii (ray-finned fishes) > Anguilliformes
(Eels and morays) > Congridae
(Conger and garden eels) > Congrinae
Etymology: Japonoconger: Composed from Japan + Latin, conger = conger (Ref. 45335).
Environment / Climate / Range
Marine; bathydemersal; depth range 300 - 535 m (Ref. 41285). Deep-water, preferred ?
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Northwest Pacific: Japan.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 57.0 cm TL male/unsexed; (Ref. 559)
Morphology | Morphometrics
soft rays: 159 - 164. Tail progressively becoming narrower posteriorly, tip flexible. Upper lip without upturned labial flange. Skin very thick (Ref. 559). Head small, with short dermal papillae. Snout long and blunt, protruding beyond mouth. Mouth large, the gape reaching to a vertical through posterior margin of the eye. Dorsal origin before pectoral fin base. Pectoral fin short. Body uniformly dark brown (Ref. 41285).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Masuda, H., K. Amaoka, C. Araga, T. Uyeno and T. Yoshino, 1984. The fishes of the Japanese Archipelago. Vol. 1. Tokai University Press, Tokyo, Japan. 437 p. (text). (Ref. 559)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00066 (0.00030 - 0.00147), b=3.16 (2.96 - 3.36), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.9 ±0.5 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .