HomeFish encyclopediaRay-finned fishesPerch-like fishCrocodile icefishesJonah's icefish Jonah's icefish (Neopagetopsis ionah) Scientific name: Neopagetopsis ionah Nybelin, 1947 The Jonah's icefish (Neopagetopsis ionah) is a marine fish of the family Channichthyidae. Native range: Southern Ocean, Circum-Antarctic on the continental shelf and slope. Species factsScientific nameNeopagetopsis ionahFamilyChannichthyidae (Crocodile icefishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length56.0Depth range20–900 m (66–2953 ft)EnvironmentMarine; benthopelagic; depth range 20 - 900 mClimatePolarDistributionSouthern Ocean: Circum-Antarctic on the continental shelf and slope.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interestResilienceMedium, minimum population doubling time 1.4 - 4.4 years (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