In the Yuan, Ming, and Qing dynasties, because of harassment from pirates, coastal fishing was banned on several occasions, and fisher folk were even moved inland. But it proved difficult to keep these people, who their trade, and coastal fishing (as well as taxes from it) increased steadily.
元明清三朝因為海盜騷擾，曾數度禁漁，還曾將漁民由海邊遷至內地，但要世代打漁為生的漁民不捕魚很難，官方時禁時開，沿海漁獲也一路增加，稅收不斷。