A factory in O Carballiño, Galicia, Spain, now gets all its octopuses from Mauritania and Morocco. Local waters have not had enough octopuses for ten years. The town is famous for its “octopus capital” name, annual festival, and many restaurants. Fewer octopuses in the sea and high demand from other countries led to the closing of Galicia’s octopus fishing for three months in summer. Scientists say the numbers are falling because of too much fishing and changes in the ocean caused by climate change. These changes reduce the food octopuses need to live.

Some companies want to farm octopuses to solve the problem. Nueva Pescanova is building a large farm that could raise up to one million octopuses a year. Another company, Grupo Profand, is studying how to breed them. Supporters say farming could help provide more food and protect wild octopuses because they grow quickly. However, animal welfare groups say farming is cruel because octopuses are intelligent and live alone in nature. They also worry about water pollution and catching small fish for feed. In the United States, states like Washington and California have banned farming and selling farmed octopus.