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Great white sharks face extinction in Mediterranean, say researchers

Great white sharks face extinction in Mediterranean, say researchersGetty ImagesGreat white sharks in the Mediterranean Sea are in danger of disappearing, with illegal fishing contributing to their decline. This is according to research by US scientists, working in partnership with UK charity Blue Marine Foundation. They say some of the most threatened species - including great white sharks - are being sold in North African fish markets. Great whites are one of more than 20 Mediterranean shark species protected under international law, meaning it is illegal to fish for them or to sell them. By monitoring fishing ports on the Mediterranean coast of North Africa, however, researchers discovered that at least 40 great white sharks have been killed there in 2025 alone. James Glancy/Blue MarineConservationists and scientists say they have seen protected species for sale in fish markets in North Africa The BBC has also found, and independently verified, footage from social media of protected sharks being brought dead into North African ports. One video showed a large great white being hauled ashore from a fishing boat in Algeria. Another, filmed in Tunisia, shows heads and fins of what appears to be a short-finned mako shark, which is also a threatened and protected species, being prepared for sale. Last shark stronghold James Glancy/Martin StalkerThe researchers worked from a vessel in the Strait of SicilyLead researcher, Dr Francesco Ferretti from the US university Virginia Tech, explained that many shark populations - white sharks in particular - had declined dramatically in the Mediterranean in recent decades."No other stretch of water is fished like the Mediterranean Sea," he said, speaking to the BBC News science team while working on a research vessel off the coast of Sicily in late 2025.

A great white shark moves towards the camera through clear, blue water. A shoal of small fish surround the large predator and its rows of pointed teeth are clearly visible

A great white shark moves towards the camera through clear, blue water. A shoal of small fish surround the large predator and its rows of pointed teeth are clearly visible

Credit: Co

Key Highlights

  • "The impact of industrial fishing has been intensifying...
  • and it's plausible that they will go extinct in the near future."The Mediterranean white shark population is now classified as Critically Endangered by the International Union for the Conservation of Nature. In their latest attempt to find and study the predators, Dr Ferretti and his team worked in the Strait of Sicily - an area between Sicily and North Africa that has been identified as a "last stronghold" in the Mediterranean for several threatened shark species. One key aim of their mission was to fit a satellite tracking tag onto a white shark - something that has never been done in the Mediterranean Sea. To attempt this, the researchers brought more than three tonnes of fish bait - a shipping container packed with frozen mackerel and tuna scraps, as well as 500 litres of tuna oil to create a "fat slick" that many sharks would be able to smell from hundreds of metres away.
  • Despite working for two weeks - baiting the ocean, taking samples of seawater to search for shark DNA and using underwater cameras - the researchers did not manage to find any animals to tag. They captured only a brief glimpse of one blue shark on their submarine cameras."It's disheartening," Dr Ferretti told us.
  • "It just shows how degraded this ecosystem is."While the team was searching for surviving sharks, they also received reports that a juvenile great white had been caught and killed in a North African fishery - just 20 nautical miles from where they were working. It is not clear whether that animal was accidentally caught in fishing gear, or if it was targeted.
  • Dr Ferretti and his team, though, estimate that more than 40 great white sharks have been caught around that coast.
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Sources

  1. Great white sharks face extinction in Mediterranean, say researchers

This quick summary is automatically generated using AI based on reports from multiple news sources. The content has not been reviewed or verified by humans. For complete details, accuracy, and context, please refer to the original published articles.

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