HomeFish encyclopediaSharks and RaysGround sharksRequiem sharksSilky shark Silky shark (Carcharhinus falciformis) Scientific name: Carcharhinus falciformis M?ller & Henle, 1839 The Silky shark (Carcharhinus falciformis) is a marine fish of the family Carcharhinidae. In the aquarium it needs water at 23–24°C (73–75°F). Silky shark care at a glanceTemperature23–24°C (73–75°F) BiologyFound abundantly near the edge of continental and insular shelves, but also in the open sea and occasionally inshore. Often found in deepwater reefs and near insular slopes. Littoral and epipelagic, in the open sea or near the bottom at 18-500 m. It is quick-moving and aggressive. Solitary; often associated with schools of tuna. Feeds mainly on fishes, but also squid, paper nautiluses, and pelagic crabs. Viviparous. Regarded as dangerous to humans. Flesh utilized fresh and dried-salted for human consumption; its hide for leather; its fin for shark-fin soup; its liver for oil. 2 to 14 young, 73 to 87 cm, are born per litter.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameCarcharhinus falciformisFamilyCarcharhinidae (Requiem sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length350Common length250Depth range0–4000 m (0–13123 ft)EnvironmentMarine; reef-associated; oceanodromous; depth range 0 - 4000 m, usually 0 - 500 mClimateSubtropicalDistributionCircumtropical. Western Atlantic: Massachusetts, USA to southern Brazil, including the Gulf of Mexico and the Caribbean Sea to Uruguay. Eastern Atlantic: Spain, Madeira to northern Angola; St. Paul's Rocks; Cape Verde. Indo-Pacific: scattered records from the Red Sea and Natal, South Africa to China, New Zealand, and the Caroline, Hawaiian, Phoenix and Line islands. Eastern Pacific: southern Baja California, Mexico to northern Chile. Highly migratory species, Annex I of the 1982 Convention on the Law of the Sea.Conservation status (IUCN)Near Threatened (NT)Threat to humansTraumatogenicUsesFisheries: highly commercialResilienceVery Low, minimum population doubling time more than 14 years (rm=0.054; K=0.05-0.15; tm=6-10; tmax=25; Fec=2-14) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026