Billions of shrimp are slaughtered annually in aquaculture, typically without stunning or consideration for their capacity to suffer. Emerging research and industry standards are beginning to address this gap.
Whether shrimp experience pain in a morally relevant sense remains scientifically debated, but the precautionary principle suggests welfare standards are appropriate given evidence of nociception and avoidance learning. Current slaughter practices - particularly boiling alive or slow asphyxiation - would be considered inhumane if applied to vertebrates with equivalent behavioral evidence of pain. The welfare of billions of individual animals makes this an enormous-scale issue even under uncertainty. Industry leaders are increasingly recognizing reputational and ethical risks of ignoring shrimp welfare.