Actinopteri (ray-finned fishes) > Anguilliformes
(Eels and morays) > Congridae
(Conger and garden eels) > Congrinae
Etymology: Blachea: Named for J. Blanche, in recognition of his many contributions to the knowledge on anguilliform fishes, both adults and larvae.; longicaudalis: Named for its highly elongated caudal section, typical of the species..
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 400 - 461 m (Ref. 54804). Deep-water
Western Pacific: Fiji and New Caledonia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 68.3 cm TL male/unsexed; (Ref. 54804); 57.0 cm TL (female)
Morphology | Morphometrics
soft rays: 154 - 157;
Vertebrae: 168 - 176. Diagnosis: The distal ends of the 5th-7th rays of branchiostegal membrane protruding outside through branchiostegal membrane. Vertebrae 168-176; trunk vertebrae 74-77. Dorsal fin rays 211-222. Anal fin rays154-157 (Ref. 54804).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 6.8 - 14.4, mean 12.6 °C (based on 11 cells).
Phylogenetic diversity index (Ref. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00062 (0.00029 - 0.00133), b=3.19 (3.00 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.5 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 (47 of 100).