Papua New Guinea Creates Marine Reserve the Size of the UK

Papua New Guinea just turned an ocean area the size of the United Kingdom into a massive marine sanctuary, protecting some of the planet's most spectacular underwater life.

The Western Manus Marine Protected Area covers 77,000 square miles of tropical ocean where the Pacific and Indian Oceans meet. This legendary region, known as the Coral Triangle, hosts undersea mountains, volcanoes, and canyons teeming with life.

Scientists call it a "marine highway" connecting shallow coral reefs with deep ocean zones. The area shelters migrating orcas, Cuvier's beaked whales, giant deep-sea fish, and over 100 coral species.

The announcement came at the inaugural Melanesian Ocean Summit in Port Moresby in mid-May. The protected zone forms part of the Melanesian Ocean Corridor of Reserves, a network spanning Fiji, Vanuatu, and Papua New Guinea.

"Papua New Guinea is one of the most biodiverse places on the planet," said Jelta Wong, minister of the National Fisheries Authority. "Establishing the Western Manus Marine Protected Area will allow us to preserve and protect our ecological legacy and ensure our ocean continues to provide people with what we need."

The protected waters currently account for 10% of the country's tuna fisheries. That might sound like a loss, but research shows that fish populations actually spill over from protected zones, increasing catch rates in surrounding areas once ecosystems recover.

National Geographic's Pristine Seas expedition spent two years documenting the Coral Triangle's biodiversity. They found one of the world's healthiest coral ecosystems, though low shark numbers hinted at overfishing pressures threatening the balance.

The Ripple Effect

The reserve wasn't drawn randomly on a map. Scientists tracked grey reef sharks and seabirds that forage 200 miles daily to understand how animals move between deep seas and coral reefs, ensuring the protected zone covers critical habitat.

Governor Powes Parkop, who grew up in Manus Province, captured what this means for local communities. "Our ancestors have always lived in harmony with the sea, but today we are writing a new chapter for our children," he stated. "We aren't just protecting fish or coral; we are safeguarding our identity."

The decision advances Papua New Guinea's commitment to protect 30% of its territorial waters. For communities whose livelihoods depend on the ocean, this protected area offers hope that healthy seas can sustain both wildlife and people for generations to come.