Actinopterygii (ray-finned fishes) > Myctophiformes
(Lanternfishes) > Myctophidae
(Lanternfishes) > Lampanyctinae
Etymology: Nannobrachium: Latin, nannus = small + Latin, brachium = the upper arm from the shoulder to the elbow; 1731 (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 40 - 1000 m (Ref. 4479), usually 100 - ? m (Ref. 4479). Deep-water; 41°N - 35°S
Atlantic Ocean: bipolar in subtropical waters.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 7 - ? cm
Max length : 7.9 cm SL male/unsexed; (Ref. 36121)
Morphology | Morphometrics
High-oceanic, mesopelagic species, found at 650-1,000 m during daytime, at 40-278 during the night (maximum abundance at 100 m at night) (Ref. 4479). Feeds on amphipods, calanoid copepods, conchoecid ostracods, and euphausiid larvae and adults (Ref. 4775). There are larger specimens reported for this species (11 cm by Gibbs et al. (1972) and 12.8 cm from the southwest Atlantic by Parin et al. (1974)) but these may be misidentifications (Ref. 36121).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Zahuranec, B.J., 2000. Zoogeography and systematics of the lanternfishes of the genus Nannobrachium (Myctophidae: Lampanictini). Smithson. Contrib. Zool., 607:1-69. (Ref. 36121)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 10.1 - 22.7, mean 15.6 (based on 309 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm Total Length, based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.3 ±0.45 se; Based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (31 of 100) .