(Australian Associated Press)

Australia’s richest fishing competition will offer anglers in the Northern Territory six chances to catch a $1 million fish this year.

Six barramundi offering the top prize have been tagged and released around the Territory, with more than 100 tagged fish also offering cash rewards.

Now in its fifth season, the competition provides a boost to NT tourism by attracting anglers.

As well as the six million-dollar fish, another 100 tagged barramundi are worth $10,000 each if caught.

A further 20 tagged barramundi have been released, whose catchers will share a $5000 prize with one of three charities.

Tourism Minister Lauren Moss said the million-dollar fish competition had helped secure the Territory’s place among the world’s most renowned fishing destinations.

“The secret is well and truly out on the Territory being an unrivalled fishing destination,” she said.