Oceanic whitetip shark (Carcharhinus longimanus)

Identification and biology

Distinctive characters include long, paddle-like pectoral fins and a proportionally large, rounded dorsal fin. The species epithet longimanus means "long hands," a reference to the extended pectoral fins. Adults may reach around four metres in length and are powerful swimmers. Teeth are typical of active predatory requiem sharks: pointed and suitable for grasping and cutting prey.

Distribution, habitat and ecology

Oceanic whitetips occur across the world's tropical and warm temperate oceans where they occupy the surface and midwater columns. They are often associated with floating objects, debris or fish aggregation devices (FADs), which concentrate prey and attract these sharks. Their diet is opportunistic and includes bony fishes, cephalopods and seabirds; they will also scavenge on carrion.

Reproduction and life history

This species is viviparous: embryos develop with a placental connection and females give birth to multiple live young. Growth is relatively slow compared with some smaller sharks, and individuals reach maturity after several years. These life-history traits make the species vulnerable to heavy fishing pressure.

Human interactions and conservation

Oceanic whitetips have been heavily affected by offshore fisheries, particularly longline and purse-seine operations that target tunas and billfishes. Their fins are valued in international fin markets, and bycatch mortality has driven declines in many regions. The species has been assessed as threatened at a global scale and is subject to international trade controls to reduce unsustainable exploitation. Fishers, managers and conservation bodies refer to species profiles and family overviews for guidance (species profile, Carcharhinidae).

Distinctions and further reading

• Do not confuse this open-ocean species with the smaller, reef-associated whitetip reef shark.
• Taxonomic and genus-level information is available for Carcharhinus and related requiem sharks (genus treatment).
• For management, conservation status and recent assessments consult regional organizations and international agreements referenced in specialist reviews and databases (conservation summaries).

Because of its bold behaviour around floating objects and vessels, the oceanic whitetip is both ecologically conspicuous and particularly exposed to pelagic fishing gears. Continued monitoring, bycatch mitigation, and international cooperation remain central to its conservation.