The first commercial octopus farms are emerging, raising urgent welfare questions about how to meet the complex needs of a highly intelligent, solitary predator in captivity.
Octopus aquaculture sits at the frontier of animal welfare ethics. Octopuses are among the most cognitively sophisticated invertebrates, capable of problem-solving, play, and individual personality expression. Confining them in barren tanks without live prey, enrichment, or the ability to establish territories creates immediate welfare problems. Cannibalism in group housing settings means individual animals are at constant risk of injury or death from conspecifics. The welfare case for proceeding with commercial octopus farming without established welfare standards is weak. Consumer and regulatory pressure to establish welfare requirements before commercial scale-up represents an opportunity to get this right from the start.