HomeFish encyclopediaRay-finned fishesPerch-like fishCod icefishesPatagonian rockcod Patagonian rockcod (Patagonotothen brevicauda brevicauda) Scientific name: Patagonotothen brevicauda brevicauda L?nnberg, 1905 The Patagonian rockcod (Patagonotothen brevicauda brevicauda) is a marine fish of the family Nototheniidae. Native range: Southeast Pacific and Southwest Atlantic, Tierra del Fuego (including Strait of Magellan and Beagle Canal) and the Falkland Islands. Species factsScientific namePatagonotothen brevicauda brevicaudaFamilyNototheniidae (Cod icefishes)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length23.0EnvironmentMarine; demersalClimateTemperateDistributionSoutheast Pacific and Southwest Atlantic: Tierra del Fuego (including Strait of Magellan and Beagle Canal) and the Falkland Islands.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: minor commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2, fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026