In 1949, the first nylon fishing nets were developed in Japan, marking a major technological breakthrough in commercial fishing. Nylon nets were stronger, lighter, and more durable than traditional cotton or hemp nets, allowing for larger catches and more efficient fishing. This innovation quickly spread worldwide, leading to a dramatic increase in fishing capacity and contributing to the post-war expansion of the global fishing industry. The introduction of nylon nets also had significant ecological impacts, as they were more effective at capturing fish and could damage marine habitats.

The advent of nylon nets was noted in the poetry of the post-war period, with writers like Yves Bonnefoy and W.S. Merwin reflecting on the technological transformation of fishing. The nets also became a symbol of the tension between industrial progress and environmental degradation in ecocritical poetry. Japanese haiku of the era often contrasted the new nylon nets with traditional fishing methods.