Madagascar, the world's fourth largest island, is one of the poorest countries in Africa. With some 5,000 km (3,100 miles) of coastline, many of its people rely on the ocean to survive.
Divers are not the only ones at risk. Marine life is also rapidly being exhausted. Almost 90 percent of global fish stocks are fully or overfished, according to the United Nations.
As global fish stocks are threatened with collapse, locals around the coast in southern Madagascar have pioneered safer fishing alternatives that protect the natural world.
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