It broods its larvae for 7 to 10 days inside its own mantle cavity before releasing them.
From Common Oyster
Its European populations have been in steep historical decline.
From Common Oyster
Every oyster is born male and can change sex several times in its life.
From Common Oyster
It is the source of Tahitian black pearls, the economic mainstay of much of French Polynesia.
From Pacific Pearl-oyster
The dark border of the nacre, from which it takes its name, is what gives the pearls their green, grey and aubergine tones.
From Pacific Pearl-oyster
Before pearl farming it was harvested on a huge scale for its shell, the raw material for buttons and marquetry.
From Pacific Pearl-oyster
Its clusters on mangrove roots create microhabitat for crabs, worms and juvenile fish.
From Flat Tree Oyster
The straight hinge with a row of parallel grooves makes its valves very easy to identify on the beach.
From Flat Tree Oyster

Ecosystems