Where have all the crabs gone? How development is squeezing out southern Malaysia’s sea people

Aween Bin Terawin fishing for crabs among the mangrove swamps of the Johor strait, in southern Malaysia. Coastal development and the climate crisis are affecting his Orang Seletar community’s traditional lifestyle Photograph: Izzy Sasada

Aween Bin Terawin submerges himself in the mangrove swamp to reach a crab cage on the riverbed below. After a moment of suspense, he lifts the cage above the water’s surface and inspects its interior. Empty.

After stowing the collapsible cage away in his boat, he continues his journey through the vast swamp to retrieve the 40 cages he set early that morning, each marked by a floating bottle tied to string.