Teleostei (teleosts) >
Argentiniformes (Marine smelts) >
Bathylagidae (Deep-sea smelts)
Etymology: Bathylagichthys: Greek, bathys = deep + Greek, lagos = hare + Greek, ichthys = fish (Ref. 45335); australis: From its occurrence in the waters of the Southern Hemisphere.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; depth range 50 - 1000 m (Ref. 45488). Temperate
Indian and Pacific.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 20.8 cm SL male/unsexed; (Ref. 41239)
Short description
Identification keys | Morphology | Morphometrics
Dorsal soft rays (total): 12 - 14; Anal soft rays: 11 - 13; Vertebrae: 47 - 50. Branchiostegal rays 3. Supraorbital short, posterior well behind vertical through the middle of the orbit. Canals of subcutaneous vascular system of the trunk not forming anastomoses below the lateral line. Pyloric caeca 10-16 (Ref. 41239).
Mesopelagic (Ref. 75154).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kobylyanskiy, S.G., 1990. Two new species of the genus Bathylagichthys Kobyliansky [Kobilyansky] (Bathylagidae, Salmoniformes) from Southern Hemisphere subpolar waters. J. Ichthyol. 30(5):21-27. (Ref. 41239)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
Fisheries: bycatch
Tools
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 1.3 - 13.7, mean 9.2 °C (based on 164 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00525 (0.00219 - 0.01260), b=3.01 (2.80 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±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 (15 of 100).