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); phyllisae: Named in honor of Phyllis E. Fabian, former wife of B.J. Zahuranec, as a token or recognition for her many years of support (Ref. 36121).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic. Deep-water
Southeast Pacific: restricted to the Peru-Chile Current area.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.1 cm SL male/unsexed; (Ref. 36121)
Morphology | Morphometrics
soft rays: 17 - 20;
Vertebrae: 35 - 36. 13-14 AO photophores; 8-10 tooth patches on the lower limb of the second gill arch; 34-35 lateral line organs (Ref. 36121). Pectoral fins relatively long and well developed in juveniles, progressively becoming relatively shorter, with thicker rays (covered by skin in various stages of becoming vestigial, between about 4-7 cm SL); vestigial rays buried in skin and not externally visible (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
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.2 - 2.6, mean 2.3 (based on 75 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
): 3.2 ±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.).
Vulnerability (Ref. 59153
): Moderate vulnerability (40 of 100) .