Live Salmon Transport Welfare in Aquaculture

Live transport of salmon between aquaculture sites is a significant welfare event requiring careful management of water quality, handling, and duration.

Key Facts

Live salmon transport occurs during grading, site transfers, and movement to harvest facilities
Wellboats are specialized vessels used to transport large numbers of salmon in seawater tanks
Water quality including oxygen, temperature, and CO2 must be managed carefully during transport
Handling before loading causes stress that compounds the transport stress response
Feeding is typically withheld for 24-48 hours before transport to reduce defecation in tanks

Welfare Considerations

Salmon transport is an unavoidable but high welfare-risk event in commercial salmon farming. Crowding during loading causes acute stress with elevated cortisol lasting hours after transport. Water quality deterioration during long transports causes hypoxia and CO2 accumulation that adds to welfare burden. Wellboat technology allows water circulation and aeration that reduces the physiological stress of transport compared to simple tank trucks. Minimizing transport duration, ensuring optimal pre-transport welfare condition, and using gentle handling protocols reduce welfare impact. Post-transport recovery monitoring assesses whether fish return to normal behavior and feeding patterns. Reducing the number of transport events through better farm planning also reduces cumulative welfare impact.

What You Can Do

Support aquaculture operators who minimize transport frequency and duration through better planning
Advocate for welfare-based transport standards in farmed salmon certification schemes
Choose salmon from producers who document and monitor transport welfare outcomes
Back research into optimal wellboat water quality management for salmon transport welfare