
Only a fraction of Australia's once-abundant oyster reefs remain.
Their demise can largely be traced to industrial activity brought by European settlers to harvest the shellfish for food and dredge reefs to make early roads and buildings.

Only a fraction of Australia's once-abundant oyster reefs remain.
Their demise can largely be traced to industrial activity brought by European settlers to harvest the shellfish for food and dredge reefs to make early roads and buildings.