HomeFish encyclopediaRay-finned fishesPerch-like fishProwfishProwfish Prowfish (Zaprora silenus) Scientific name: Zaprora silenus Jordan, 1896 The Prowfish (Zaprora silenus) is a marine fish of the family Zaproridae. In the aquarium it needs water at 0–4°C (32–39°F). Prowfish care at a glanceTemperature0–4°C (32–39°F) BiologyAdults occur near bottom. Young to 7.2 cm are pelagic or bathypelagic, usually associated with jellyfish. Juveniles take shelter under the medusae and are often mistaken for medusafish Icichthys lockingtoni.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameZaprora silenusFamilyZaproridae (Prowfish)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length88.0Common length42.9Depth range0–675 m (0–2215 ft)EnvironmentMarine; demersal; depth range 0 - 675 m, usually 0 - 500 mClimateBorealDistributionNorth Pacific: Hokkaido, Japan and western Kamchatka, Russia to Navarin Canyon in the Bering Sea, Attu Island in the Aleutian chain and San Miguel Island, California, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: subsistence fisheriesResilienceLow, minimum population doubling time 4.5 - 14 years (tm= 5.1; K= 0.18) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026