A woman has been left stunned after a great white shark mauled her first prized tuna catch off in South Australia.

Izzy Sesto and her mates were targeting tuna off the coast of Cape Jaffa when they got the fright of their lives. 

“It definitely would have been three-metres-plus,” Sesto said.

“It obviously wasn’t a big monster but it was definitely a big great white.”

Izzy Sesto and her mates were targeting tuna off the coast of Cape Jaffa when they got the fright of their lives. (Supplied)

Sesto said the aim of the fishing trip was to get a 100kg-plus tuna because that is considered a barrel.

“I was on the rod for an hour and a half and we have actually seen the tuna on the surface three times so it was a tuna,” the angler said.

“This big great submarine came over the tuna.”

The great white shark mauled the angler's prized tuna catch off in South Australia.
The great white shark mauled the angler’s prized tuna catch off in South Australia. (Supplied)

The group was close to landing the big tuna when the predator appeared and took a huge chunk out of the fish.

“The shark has just grabbed the tail,” Sesto said.

“I’m just so obsessed with sharks they don’t scare me.”

Izzy Sesto and her mates were targeting tuna off the coast of Cape Jaffa when they got the fright of their lives
Sesto said the aim of the fishing trip was to get a 100kg-plus tuna because that is considered a barrel. (9News)

Despite the fish being in the boat, the great white didn’t leave.

“From all the blood dripping off the boat it just stuck around and started biting the motors.

“It was absolutely epic.” 

Sesto said it won’t deter her from heading out on the water again.

“It’s honestly been five years of targeting barrels and I’ve just had the worst luck,” she said.

“But it still went 102 kg with no tail so it’s still classified as a barrel.”

You May Also Like

Fox News' Tomi Lahren Once Accidentally Roasted Her Own Marriage

Terry Wyatt/Getty Images Tomi…

Back To The Future FAKERY! All the things that are wrong with the 1980s sci-fi classic as it turns 40 – including wardrobe fails, bizarre plot holes and a dodgy DeLorean that you won’t be able to unsee

It’s been 40 years since Michael J. Fox’s Marty McFly took the…

Alec Baldwin's Oldest Daughter Ireland And His Wife Have An Awkward Age Gap

Kevin Mazur/Getty Images Alec…

Ron Howard and Henry Winkler reunite with ‘Happy Days’ co-stars for the first time in 50 years

Oh happy day. Ron Howard and Henry Winkler reunited with their “Happy…