Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
Teleostei (teleosts) >
Argentiniformes (Marine smelts) >
Bathylagidae (Deep-sea smelts)
Etymology: Bathylagus: Greek, bathys = deep + Greek, lagos = hare (Ref. 45335); niger: Named for its dark body color..
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; bathypelagic; depth range 200 - 1560 m (Ref. 57776). Deep-water; 44°S - 59°S
Southern Ocean: South Georgia and Sandwich Islands, Scotia Sea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 14.1 cm SL male/unsexed; (Ref. 57776)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 10 - 12; Anal soft rays: 20 - 23; Vertebrae: 45 - 48. Diagnosis: Gill rakers 23-30 (usually 26-27); anal fin rays 20-23; dorsal fin rays 10-12; scale pockets in the lateral line 40-42; vertebrae45-48 (usually 46-47); pyloric caeca 4-7 (usually 5-6); greatest body depth in mature specimens 19-22% SL, with average-sized head 21-23% SL (Ref. 57776).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Kobylianskii, S.G., 2006. Bathylagus niger sp. nova (Bathylagidae, Salmoniformes) a new species of Bathylagus from the subpolar waters of the Southern Ocean. J. Ichthyol. 46(6):413-417. (Ref. 57776)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00513 (0.00205 - 0.01282), b=3.00 (2.79 - 3.21), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 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 vulnerability (10 of 100).