Moment stunned fisherman spots world's fastest shark swimming alongside his boat off coast of Zante 

A shocked fisherman caught a glimpse of the worlds fastest shark off the coast of Zante and managed to get a clip of the predator.

Yiannis Gelados was out on his boat in the Ionian Sea when he saw a shark for the first time ever in those waters.

Little did he know, this beast was actually the world's fastest shark - a shortfin mako shark.

The species can be found in many places across the globe, but has become endangered, and was spotted in the Mediterranean for the first time in a decade last year.

Watch the video below.

Yiannis Gelados was shocked by the 'first shark I have ever seen in our waters. Can't say what species it is, but it's a big one!'

The shortfin mako shark can clock speeds of up to 46 miles per hour, but has become an endangered species

You can sense the surprise in Gelados' voice as he reveals it is the 'first shark I have ever seen in our waters.

'Can't say what species it is, but it's a big one!'

With the shortfin mako the world's fastest, it was quite a first shark to see.

Despite noticing the obvious size of the beast, Gelados told local radio station ERT Zakynthos that it was surprisingly 'not aggressive at all.'

He continued: 'On the contrary, it was calm and swam like a dolphin next to the boat.'

Local media confirmed that the sighing was two miles out from the port of Zakynthos, between Kefalonia and Kyllini.

This species, which can reach speeds of 46 miles per hour, is increasingly rare after becoming a victim of industrial fishing, bycatching, and and the international fin trade.

It can grow to a length of 4 metres, or 13 feet, at a weight of 570kg.