Aquaculture

Mahi-Mahi Aquaculture Welfare Challenges

Mahi-mahi (dorado) are being developed as aquaculture candidates due to fast growth rates, but their welfare needs in captivity present significant challenges requiring careful management.

Key Facts

Mahi-mahi grow up to 1.5 kg in 6 months in aquaculture
Wild fish are highly migratory and active open-ocean predators
Captive fish show high stress responses and jumping behaviour
Lateral line damage is common in tank systems
Mortality rates in early aquaculture trials were high
As of 2025 commercial production remains limited

Welfare Considerations

Mahi-mahi are fast-swimming pelagic fish adapted to open water, making tank confinement inherently stressful. Restricted movement, unfamiliar social densities, and artificial lighting cycles cause chronic stress. Welfare assessment protocols must be developed before commercial scaling proceeds.

What You Can Do

Support aquaculture welfare research funding that includes mahi-mahi
Choose seafood certified by standards that consider fish welfare
Advocate for welfare assessment requirements before new species are commercialised
Support organisations like FAIRR that pressure industry on aquaculture standards
Reduce overall fish consumption to lower pressure on both wild and farmed stocks