Proposals to farm octopuses commercially have prompted intense welfare debate given their extraordinary cognitive complexity and strong individuality.
The case against octopus farming is grounded in the remarkable cognitive complexity of these animals. Octopuses demonstrate individual personalities, sophisticated learning, tool use, and play behavior. They are also intensely solitary, making the group confinement required for commercial aquaculture a profound violation of their behavioral needs, predictably producing chronic stress, injury, and cannibalism. Unlike most aquaculture species, their welfare needs appear fundamentally incompatible with commercial farming conditions. Several welfare scientists and organizations have called for a moratorium on octopus farming pending welfare assessment.