UK sets up Chagos Islands marine reserve

The UK government has created the world's largest marine reserve around the Chagos Islands.

By Paul Rincon 
Science reporter, BBC News

Conservationists say the area is a biodiversity hotspot

The reserve would cover a 545,000-sq-km area around the Indian Ocean archipelago, regarded as one of the world's richest marine ecosystems.

This will include an area where commercial fishing will be banned.

But islanders, who were evicted to make way for the US air base on the island of Diego Garcia, say a reserve would effectively bar them from returning.

UK Foreign Secretary David Miliband said establishing the reserve would "double the global coverage of the world's oceans under protection".

He commented: "Its creation is a major step forward for protecting the oceans, not just around BIOT [British Indian Ocean Territory] itself, but also throughout the world.

"This measure is a further demonstration of how the UK takes its international environmental responsibilities seriously."

Conservationists say the combination of tropical islands, unspoiled coral reefs and adjacent oceanic abyss makes the area a biodiversity hotspot of global importance.

The archipelago, which has been compared to the Galapagos Islands and to Australia's Great Barrier Reef, hosts the world's biggest living coral structure - the Great Chagos Bank. This is home to more than 220 coral species - almost half the recorded species of the entire Indian Ocean, and more than 1,000 species of reef fish.