Third-party aquaculture certification schemes vary widely in the depth and rigor of welfare standards they apply, creating a confusing landscape for consumers seeking to make welfare-positive choices.
The aquaculture certification landscape presents consumers with a labeling system that often signals environmental sustainability without meaningful welfare protection. A fish product certified by some major schemes may be produced under conditions that welfare scientists would identify as significantly stressful — high stocking density, poor water quality, cyanide stunning at slaughter, or no stunning at all. Schemes like RSPCA Assured (UK) set meaningfully higher welfare bars, including stunning requirements and behavioral welfare indicators. The gap between schemes is large and not evident from label appearance. Consumer pressure for welfare-specific labeling, and regulatory pressure for welfare standards to be included in all aquaculture certification, are necessary to drive convergence toward higher standards.