Aquaculture

Mahi-Mahi Welfare in Tropical Aquaculture

Welfare overview for mahi-mahi (Coryphaena hippurus) -- a fast-growing tropical fish with developing aquaculture sector.

Key Facts

Mahi-mahi (dorado/dolphinfish) is among the fastest-growing marine fish -- reaching market size in under 12 months
Commercial aquaculture is developing in Panama, Puerto Rico, and other tropical locations
Mahi-mahi are highly active, schooling, pelagic fish -- cage confinement raises significant welfare questions
They show strong stress responses to handling and confinement -- cortisol studies confirm acute stress
Water temperature and quality management is critical -- mahi-mahi have specific thermal requirements
Disease challenges in confined systems include bacterial and parasitic infections
Welfare research on mahi-mahi in aquaculture is very limited -- basic welfare parameters are not well established
Their high growth rate and excellent flesh quality make them commercially attractive despite welfare unknowns

Welfare Significance

Mahi-mahi aquaculture welfare is at an early stage. These fast-swimming, active pelagic fish are biologically poorly suited to cage confinement, and the welfare science required to guide production is largely absent. Applying precautionary welfare principles from the outset of commercial development is essential to avoid repeating the welfare failures that have characterised intensive salmon and shrimp aquaculture.

What You Can Do

Support welfare research on mahi-mahi and other emerging aquaculture species before commercial scale-up
Advocate for precautionary welfare standards to be incorporated into mahi-mahi aquaculture development
Ask retailers about production conditions when purchasing farmed mahi-mahi
Choose wild-caught mahi-mahi from certified sustainable fisheries until aquaculture welfare is established