Commercial octopus aquaculture is advancing rapidly despite growing evidence that octopuses are highly intelligent and cannot be farmed humanely.
Octopus farming presents severe welfare challenges that may be insurmountable. As solitary predators, crowding induces stress and cannibalism. Their intelligence means environmental impoverishment causes acute psychological suffering. Slaughter methods are poorly developed. The Washington state ban cites welfare concerns as a primary rationale, setting an important precedent.