Teleostei (teleosts) >
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.
Eponymy: Jacques Blache (1922–1994) was a French ichthyologist who worked for the Office de la Recherche Scientifique et Technique d’Outre-Mer (ORSTOM) in Kampuchea (1948–1953) and in various African countries including Chad, Congo and Senegal (1953–1973). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
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)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 211 - 222; Anal 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).
Body shape (shape guide): eel-like.
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. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 82804) |
PD50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00062 (0.00028 - 0.00135), b=3.19 (3.01 - 3.37), 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). 🛈 |