Great White Shark (Carcharodon carcharias)

The great white shark, also known as the white shark, is a species of large lamniform shark found in the coastal surface waters of all major oceans. It is notable for its size, predatory capabilities, and role as an apex marine predator.

Taxonomy and description

Great white sharks belong to the family Lamnidae (mackerel sharks). They display countershading, with a white underside and a grey, black, or blue dorsal side. They have robust, torpedo-shaped bodies and rows of triangular, serrated teeth designed for grasping and tearing prey. Adults typically measure between 4 and 5.2 meters (13 to 17 feet) in length and weigh up to 1,100 kilograms (2,400 pounds), with females generally being larger than males.

Habitat and migration

White sharks are highly migratory, swimming vast distances between coastal aggregation sites and offshore pelagic zones. They are thermoregulators, possessing a specialized circulatory heat exchange system (rete mirabile) that allows them to maintain a body temperature higher than the surrounding water, enhancing their hunting efficiency in cooler seas.

Conservation status

The IUCN Red List classifies the great white shark globally as Vulnerable due to historical overfishing, slow reproductive rates, and ongoing threat pressures.

Threats include:

• Commercial and recreational targeted fisheries (often for jaws, teeth, and fins)
• Accidental bycatch in gillnets, longlines, and beach protection nets
• Bioaccumulation of chemical pollutants affecting reproductive health
• Degradation of coastal habitats and decline of key prey populations