Hong Kong’s oysters and its oyster farmers are threatened by development and a number of environmental issues; conservationists and researchers are teaming up to restore oyster reefs across Hong Kong. At one site, they are repurposing concrete posts from an abandoned oyster farm that made use of traditional oyster cultivation methods dating back hundreds of years. By restoring reefs, conservationists and scientists hope they can improve water quality, stabilize shorelines, and provide habitat for the city’s surprisingly rich marine wildlife.

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