Aquaculture

Grey Mullet Welfare in Coastal Aquaculture Systems

Welfare considerations for grey mullet farmed in coastal and estuarine pond systems.

Key Facts

Grey mullet are widely farmed in Mediterranean and Asian coastal aquaculture
They are herbivorous and filter-feeding — welfare requirements differ from predatory species
Pond culture with natural productivity can provide relatively good welfare conditions
They are robust fish but sensitive to oxygen depletion in warm conditions

Welfare Considerations

Grey mullet welfare in coastal pond systems is generally better than intensive cage culture — natural pond productivity allows expression of natural feeding behaviour. Welfare concerns include oxygen depletion in warm, eutrophic ponds and crowding at harvest. Welfare-informed pond management monitors oxygen levels continuously in warm months, uses aeration when needed, and adopts rapid harvest methods.

What You Can Do

Support grey mullet aquaculture research improving welfare in coastal pond systems
Choose grey mullet from certified coastal aquaculture producers where available
Advocate for oxygen monitoring requirements in coastal aquaculture licensing