HomeFish encyclopediaSharks and RaysGround sharksRequiem sharksWhitetip reef shark Whitetip reef shark (Triaenodon obesus) Scientific name: Triaenodon obesus R?ppell, 1837 The Whitetip reef shark (Triaenodon obesus) is a marine fish of the family Carcharhinidae. BiologySluggish inhabitant of lagoons and seaward reefs where it is often found resting in caves or under coral ledges during the day, or usually on a sand patch, or in a channel. More active at night or during slack tide in areas of strong currents. Feeds on benthic animals such as fishes, octopi, spiny lobsters and crabs. Viviparous. Travels distances from about 0.3 to 3 km in periods up to about 1 year. Rarely reported to attack humans, but is potentially dangerous especially when fish had been speared. Probably fished wherever it occurs. Caught by inshore longline and gillnet fisheries, and probably adversely affected by dynamite fishing. Meat and liver utilized fresh for human consumption. The liver of this shark has been reportedSource: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameTriaenodon obesusFamilyCarcharhinidae (Requiem sharks)OrderCarcharhiniformes (Ground sharks)ClassElasmobranchii (Sharks and Rays)Maximum length213Common length160Depth range1–330 m (3–1083 ft)EnvironmentMarine; reef-associated; depth range 1 - 330 m, usually 8 - 40 mClimateTropicalDistributionIndo-Pacific: Red Sea and East Africa to Indonesia and the Arafura Sea, north to Ryukyu and Ogasawara islands, south to New South Wales, New Caledonia, and the Austral and Pitcairn islands; throughout Micronesia. Eastern Pacific: Cocos and Galapagos islands, Panama to Costa Rica.Conservation status (IUCN)Near Threatened (NT)Threat to humansTraumatogenicUsesFisheries: minor commercial; gamefish: yesResilienceVery Low, minimum population doubling time more than 14 years (tm=5-9; tmax=25; Fec=1) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026