A SERIES of public warnings will blare over the North Coast airwaves as the NSW Government launches a campaign to raise awareness about shark attacks.

Local radio stations between Ballina and Port Macquarie will broadcast the announcements from this week with tips on how to avoid becoming fish food.

The advice - including staying out of the ocean at dusk or dawn and watching out for schools of bait fish - follows a surge in shark attacks at beaches along the state's north.

Primary Industries Minister Niall Blair was confident the partnership with every Surf Live Saving NSW club across the North Coast would save lives.

"If people know the risks, they can reduce their chance of a close encounter with a shark," he said.

"Simple things such as people telling a lifesaver or lifeguard if they see a shark and exiting the water if they hear a shark alarm will help to reduce the risk to themselves and others.

"The radio ads are being run in conjunction with a targeted North Coast SharkSmart campaign, which has been delivered ahead of schedule."

The campaign includes the roll-out of the SharkSmart mobile app, which allows people to check where shark nets are installed, learn about common shark species and suggests nearby council-operated saltwater baths and swimming pools.

"Further, the Government is considering ways to expand the app in the future to include a range of information as new technology and information emerges," Mr Blair said.

The SharkSmart app can be downloaded from the iTunes or Google Play stores

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