Aquaculture

Pikeperch (Zander) Welfare in Aquaculture

Welfare considerations for zander farmed in recirculating aquaculture systems.

Key Facts

Zander is a prized food fish farmed increasingly in European RAS
They are territorial and cannibalistic in early life stages
Require live prey initially — weaning to artificial diet is a welfare challenge
Light-shy — require dim conditions that differ from most other farmed species

Welfare Considerations

Pikeperch welfare in RAS is affected by their specific light requirements, territorial aggression, and the stress of diet weaning. Early cannibalism is a significant welfare problem requiring size-grading and adequate feeding. Species-specific welfare standards are being developed as the industry expands.

What You Can Do

Support zander aquaculture producers adopting evidence-based welfare standards
Advocate for species-specific welfare assessment in new and emerging aquaculture species
Choose farmed zander from producers with transparent production practices