HomeFish encyclopediaRay-finned fishesCodsGrenadiers or rattailsFragile grenadier Fragile grenadier (Asthenomacrurus fragilis) Scientific name: Asthenomacrurus fragilis Garman, 1899 The Fragile grenadier (Asthenomacrurus fragilis) is a marine fish of the family Macrouridae. Native range: Eastern Pacific, Malpelo Island, Colombia and the Galapagos Islands. Species factsScientific nameAsthenomacrurus fragilisFamilyMacrouridae (Grenadiers or rattails)OrderGadiformes (Cods)ClassActinopterygii (Ray-finned fishes)Maximum length20.0Depth range1330–3336 m (4364–10945 ft)EnvironmentMarine; bathypelagic; depth range 1330 - 3336 mClimateDeep-waterDistributionEastern Pacific: Malpelo Island, Colombia and the Galapagos Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, 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