Great White sharks in the Mediterranean

It is a little-known fact that Great White sharks can be found in the Mediterranean Sea, and perhaps even less-well known is that they arrived there some 450,000 years ago from Australia, according to new genetic studies.

According to a BBC article published today:

“Researchers writing in Proceedings of the Royal Society B believe the arrival may have been simply a migratory ‘wrong turn’ by a few pregnant females.

A tumultuous climate between ice ages may have been the cause.

The species – Carcharodon carcharias – would have remained in the Med because it returns to spawn where it was born.

It was previously assumed that the great whites in the Mediterranean were most closely related to their nearby cousins in the Atlantic Ocean.

But now, a team led by Les Noble of the University of Aberdeen has examined the several groups of sharks’ mitochondrial DNA – genetic material passed through the maternal line that is particularly suited to tracing lineages.

The team found that the Mediterranean sharks were very different to the Atlantic group and more like sharks from Australia and New Zealand.”

Great White shark attacks in the Mediterranean

The great white shark is most commonly associated with the coasts of Australia, California and South Africa, but there have been occasions when this increasingly rare animal has been spotted in the Mediterranean. Some experts believe that the Mediterranean is a nursery where great white sharks give birth and raise their young. The Sicilian channel, near the Italian island of Lampedusa, is the only location in the Atlantic region where both pregnant females and newly born great whites have been sighted.

A great white shark was caught in Malta by Alfredo Cutajar in April 16, 1987. This shark was also estimated to be around 7.13 m (24 ft).

The map below shows confirmed sightings of great white of great white sharks in the mediterranean sea since the early 20th century: