A diver documented what researchers believe is the first underwater footage of an adult great white shark in its natural Mediterranean habitat, capturing the rare encounter between Tunisia and Sicily during a marine cleanup operation.
The NGO Healthy Seas Foundation, working with Ghost Diving and the Society for Documentation of Submerged Sites, recorded the footage while removing abandoned fishing nets from the Strait of Sicily. The organization specializes in extracting marine debris that threatens ocean ecosystems.
Great white sharks have nearly vanished from Mediterranean waters. Overfishing stands as the primary threat to the species in the region, according to Healthy Seas. The predator's collapse in these waters reflects broader overfishing pressures that have dismantled fish populations across the Mediterranean for decades. Commercial fishing operations target both sharks directly and their prey species, squeezing the population from multiple angles.
The sighting holds ecological weight beyond its rarity value. It confirms that adult great whites persist in Mediterranean waters, challenging assumptions about their complete regional extirpation. The footage also emerges from conservation work addressing ghost fishing, a documented killer of marine megafauna. Abandoned nets continue catching and killing sharks, sea turtles, dolphins, and other species long after fishermen discard them.
The discovery underscores interconnected marine crises. Overfishing depletes prey populations while simultaneously targeting apex predators directly. Ghost gear compounds these pressures. Great whites require vast hunting ranges and face cumulative stressors that leave populations fragmented and vulnerable.
Healthy Seas works across Mediterranean dive sites to retrieve derelict fishing gear. These operations contribute data on both marine health and species presence. The great white encounter suggests that systematic cleanup efforts paired with targeted species monitoring can yield conservation insights otherwise unavailable to researchers constrained by funding and access limitations.
The Mediterranean's great white population remains critically depleted. Single sightings offer hope that recovery