Aquaculture

Fish Stunning Technology Advances

Effective stunning before fish slaughter has improved significantly. New electrical and percussive systems achieve rapid insensibility, reducing suffering in commercial fish processing.

Key Facts

Electrical stunning can render salmon insensible in under one second when properly applied
Percussive stunning is effective for salmon but requires precision in application
Novel CO2-free systems are being commercialized to replace distress-causing gas narcosis
Automated stunning systems reduce inconsistency associated with manual methods

Welfare Considerations

Advances in fish stunning technology are translating directly into reduced suffering for farmed fish at slaughter. Electrical stunning systems now achieve rapid, reliable insensibility when correctly calibrated. The transition from stress-causing CO2 narcosis to effective stunning represents one of the most impactful recent improvements in aquaculture welfare.

What You Can Do

Support aquaculture certification programs that require effective stunning before slaughter
Ask seafood suppliers which slaughter methods their aquaculture sources use
Advocate for mandatory stunning requirements in fish processing regulations
Recognize and celebrate producers who have adopted best-practice humane slaughter methods