New research highlights critical population decline and urgent need for protection.
Great white shark. This file photo is from the Pacific. (Credit: Scott Bennett)
Great white sharks, among the ocean’s most iconic predators, are now facing a real risk of extinction in the Mediterranean Sea. New scientific research indicates that the regional population is critically depleted, with sightings becoming increasingly rare and evidence pointing to a long-term and continuing decline.
The Mediterranean has never supported large numbers of great white sharks, but historical records show that the species was once a regular, if uncommon, presence. Today, researchers suggest that only a handful of individuals may remain, scattered across a vast and heavily exploited sea. The study warns that, without decisive action, the Mediterranean great white shark could disappear entirely.
A population under pressure
The decline is driven by a combination of factors. Bycatch in commercial fisheries remains one of the most significant threats, with sharks accidentally caught in nets and longlines targeting other species. Illegal fishing, habitat degradation and declining prey availability have further reduced survival prospects.
Great white sharks are particularly vulnerable because of their biology. They mature late, reproduce slowly and give birth to relatively few young. These traits make recovery from population losses extremely difficult, especially in a semi-enclosed sea where human pressure is intense.
Why the Mediterranean matters
The Mediterranean population is thought to be genetically distinct, making its loss especially significant for global biodiversity. Researchers stress that extinction in this region would not simply be a local issue, but the disappearance of a unique evolutionary lineage.
The study also notes that the Mediterranean offers limited refuge for large apex predators. High coastal development, dense maritime traffic and centuries of fishing activity leave little room for recovery, unless targeted protection measures are implemented.
A narrow window for action
Conservation scientists argue that urgent steps are needed, including stricter enforcement of fishing regulations, improved reporting of bycatch and stronger international cooperation. Better public awareness is also critical, as fear and misunderstanding continue to shape attitudes toward sharks.
The message from the research is stark: The Mediterranean great white shark is on the brink. Whether it survives will depend on how quickly science-based conservation measures are put into practice.
