HomeFish encyclopediaRay-finned fishesLanternfishesLanternfishesMetallic lantern fish Metallic lantern fish (Myctophum affine) Scientific name: Myctophum affine L?tken, 1892 The Metallic lantern fish (Myctophum affine) is a brackish-water fish of the family Myctophidae. BiologyHigh-oceanic, nyctoepipelagic at the surface and down to 275 m and found between 300-600 m during the day. Feeds on plankton. Females reach sexual maturity at 4.2 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMyctophum affineFamilyMyctophidae (Lanternfishes)OrderMyctophiformes (Lanternfishes)ClassActinopterygii (Ray-finned fishes)Maximum length7.9Depth range0–600 m (0–1969 ft)EnvironmentMarine; brackish; bathypelagic; oceanodromous; depth range 0 - 600 mClimateDeep-waterDistributionEastern Atlantic: Mauritania to the Angola Current. Western Atlantic: 45?N in the Gulf Stream to tropical waters. Also, recorded off La Plata river mouth. Western Atlantic: Bermuda, southern Canada to Florida (USA), Gulf of Mexico and southern Caribbean, round the Subtropical Convergence.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026