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); wisneri: Named in honor of Robert L. Wisner, Scripps Institution of Oceanography, in recognition of his contributions to the systematics of myctophids and other oceanic fishes (Ref. 36121).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathypelagic; depth range 600 - 650 m (Ref. 36121). Deep-water
Atlantic, Indian and Pacific: nearly circumglobal in subtropical convergence waters (the gap south and east of Australia appear to be real and not an artifact of sampling effort).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.8 cm SL male/unsexed; (Ref. 36121)
Morphology | Morphometrics
soft rays: 16 - 19;
Vertebrae: 36 - 38. 13-16 AO photophores; 8-10 tooth patches on the lower limb of the second gill arch; 34-37 lateral line organs (Ref. 36121). Pectoral fins completely lacking in subadult and adult stages; vestigial in small juveniles (less than 3 cm SL); fin rays present but buried in skin in larger juveniles (Ref. 36121).
High-oceanic species (Ref. 4066).
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
): 1.4 - 2.3, mean 1.8 (based on 7 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
): 3.1 ±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
): Low to moderate vulnerability (33 of 100) .