Actinopteri (ray-finned fishes) > Myctophiformes
(Lanternfishes) > Myctophidae
(Lanternfishes) > Gymnoscopelinae
Etymology: Gymnoscopelus: Greek, gymnos = naked + Greek, skopelos, a lantern fish (Ref. 45335). More on author: Lönnberg.
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range ? - 2700 m (Ref. 58018). Deep-water; 33°S - 78°S
Generally ranges between the coasts of Antarctic and 33°S (south-western Atlantic Ocean sector), 46°S (Indian Ocean sector between 50°-71°E), and about 46°S (Pacific Ocean sector off Chile).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.2 cm SL male/unsexed; (Ref. 5182)
Oceanic and mesopelagic, found in the upper 200 m at night but deeper in the region of Subtropical Convergence (Ref. 4066). Feeds mainly on Euphausia superba; also takes copepods (Euchaeta antarctica, Rhincalanus gigas), amphipods (Primno macropa, Themisto gaudichaudii) and the euphausiid Thysanoessa macrura.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hulley, P.A., 1990. Myctophidae. p. 146-178. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5182)
IUCN Red List Status (Ref. 123251)
CITES (Ref. 123416)
Threat to humans
Fisheries: minor commercial
Estimates based on models
Preferred temperature (Ref. 115969
): -1.5 - 2.3, mean 0.8 °C (based on 693 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00562 (0.00247 - 0.01279), b=3.09 (2.90 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.3 se; based on diet studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (26 of 100) .