Aquaculture

Scallop Welfare in Aquaculture: Sentience and Production

Examining scallop sentience science and welfare considerations in aquaculture production.

Key Facts

Scallops have 200 simple eyes around their mantle — sensitive to light and shadow
They can swim by clapping their valves — a predator escape behaviour
Aquaculture uses suspended ear bags and seabed ranching methods
Sentience status is uncertain but stress responses have been documented

Welfare Considerations

Scallop welfare science is uncertain — they have distributed nervous systems but no centralised brain. Their documented stress responses to handling and environmental change suggest welfare consideration is appropriate under a precautionary approach. Welfare-informed production minimises unnecessary handling, uses appropriate density in suspended culture, and avoids rough handling during grading.

What You Can Do

Engage with the evolving science on bivalve and cephalopod sentience
Consider welfare precaution when choosing between scallop production methods
Support research improving understanding of scallop and mollusc welfare