Turbot Aquaculture Welfare | Animal Welfare Hub

Turbot farming presents unique welfare challenges as a flatfish requiring benthic habitat and experiencing stress from conventional tank culture.

Key Facts

Turbot are farmed primarily in Europe in recirculating land-based systems
As flatfish, they require sufficient floor space for resting on tank bottoms rather than water column volume
High density reduces space available for resting and increases aggression and stress
Water temperature management is critical as turbot are cold-water species with narrow thermal tolerance

Welfare Considerations

Turbot welfare in aquaculture reflects the challenges of farming a naturally benthic flatfish in tank systems designed primarily for pelagic species. Turbot rest on the tank floor and require adequate floor area relative to their body size — excessive stocking density reduces available floor space, forcing fish to pile on top of each other or remain in active swimming postures that are physiologically stressful for a resting species. Temperature management is critical as turbot, like other cold-water marine species, have limited thermal tolerance. Welfare-positive turbot production requires lower stocking densities than are common in some operations, combined with careful water quality management and handling protocols that minimize stress.

What You Can Do

Choose turbot from certified operations with documented welfare management practices
Support research into species-specific welfare standards for flatfish aquaculture
Advocate for density guidelines for turbot production based on floor space rather than volume
Engage with European turbot producers on welfare improvement programs