Native oyster restoration is a conservation priority in UK and European waters, raising questions about oyster welfare during relaying and cultivation.
The welfare status of oysters remains scientifically uncertain. They lack a centralised nervous system and show limited evidence of nociception. However, the precautionary principle suggests welfare considerations during transport and relaying are appropriate. Avoiding air exposure beyond necessary limits, maintaining optimal temperature, and minimising physical damage during handling aligns with best practice. Restoration projects also benefit the broader marine ecosystem, indirectly supporting fish and invertebrate welfare.