Akoya oyster; Japanese pearl oyster
Farms are certified to a third-party aquaculture standard OR farming activities are intrinsically low impact (e.g. rope cultivation of filter feeding shellfish).
Ms Heather Sadusky, University of Maine
The University of Hong Kong
The most common pearl culture practise is to implant a round nucleus and a piece of mantle tissue into the gonad of a recipient pearl oyster, all steps done by skilful and well-trained workers. The oysters would then be returned to culture conditions within the floating cage area, allowing shell materials to slowly secrete on top of the nucleus overtime.