The Coral Sea and adjoining Great Barrier Reef will be protected from oil and gas exploration under the scheme

This article is more than 8 years old

This article is more than 8 years old

Australia has created the world's largest network of marine reserves and will restrict fishing and oil and gas exploration in a major step to safeguard the environment and access to food.

The area will cover 3.1m sq km (1.2m sq miles) of ocean including the entire Coral Sea, and encompass a third of the island continent's territorial waters.

The environment minister, Tony Burke, said the government expected to pay an estimated 100m Australian dollars to the fishing industry in compensation for the new restrictions on their operations that will take effect late this year.

Highly protected areas such as the Coral Sea off Australia's north-eastern coast and the adjoining World Heritage-listed Great Barrier Reef will also be protected from oil and gas exploration. Both areas, which cover a total 1.3m sq km, have shallow reefs that support tropical ecosystems with sharks, coral, sponges and many fish species.

The numbers of marine reserves off the Australian coast will be increased from 27 to 60.

Burke said he wanted the reserves to set a benchmark for the world in environmental protection and food security – access to and consistent availability of food. The plan aims to guarantee future fish stocks by preventing overfishing.

"We have an incredible opportunity to turn the tide on protection of the oceans and Australia can lead the world in marine protection," he said.

Don Henry, chief executive of the environmental group Australian Conservation Foundation, said the plan would make Australia a global leader in ocean protection.

But he warned that the remote north-west region where an offshore oil and gas industry is already established had been left vulnerable to the threats of further energy exploration.

Rachel Siewert, a senator for the environmentally focused Greens party, which supports the centre-left Labor party minority government, described the plan as a "cave-in to the oil and gas industry".

Judy Lynne, chief executive of the recreational anglers' group Sunfish Queensland, said the ban on commercial operations in the most environmentally sensitive areas would result in more foreign trawlers fishing illegally.