Actinopterygii (ray-finned fishes) > Osmeriformes
(Smelts) > Bathylagidae
Etymology: Bathylagus: Greek, bathys = deep + Greek, lagos = hare (Ref. 45335). More on author: Günther.
Environment / Climate / Range
Marine; bathypelagic; depth range 0 - 4000 m (Ref. 5002). Deep-water, preferred ?; 45°S - 74°S
South Atlantic, Indian and Pacific. Southern Ocean: circum-Antarctic.
Length at first maturity / Size / Weight / Age
Maturity: Lm 11.2  range ? - ? cm
Max length : 14.0 cm SL male/unsexed; (Ref. 5002); 17.0 cm SL (female)
Some studies on feeding have shown that euphausiids comprised 46% by weight of the food consumed by this species. Spawning probably occurs 3-4 times a year (Ref. 5002).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gon, O., 1990. Bathylagidae. p. 107-110. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5002)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5078 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00213 - 0.01355), b=2.98 (2.76 - 3.20), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.1 ±0.39 se; Based on food items.
Resilience (Ref. 69278
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (45 of 100) .